Sunday, July 31, 2011

Charging up....

At last, the batteries are installed and the wiring is connected! The pack is doing it's first charge cycle. Along the way, there were some interesting incidents.

Upon connecting the LIN HUB for the first time, the LED indicator panel showed a red LED "wiring fault" and the main display showed that the "battery capacity" was 0%. Yet no alarms were showing and going through the screens, it appeared as though each battery circuit board was being polled successfully. Also, when the charger was plugged in, the individual battery voltages seemed to be charging correctly. The fix was simple. Leave the charger plugged in. Then go through the settings. I found the unit was set as a zero AH pack. So, entering 60AH for my 16 cell pack size turned off the fault LED and updated the bar graph to show 100% capacity. The main pack, fully charged, shows 53.8V.

Another interesting incident. When I powered up the DC-DC converter, the charge controller for the accessory 12V battery was flashing that it was having trouble charging. I found the problem rather quickly. I had wired it in backwards! The battery was trying to charge the DC-DC converter, obviously failing to do so. Fortunately, no damage was done. After reversing, the unit appears to be charging the 12v battery properly. However, the charge controller, being only a 7A unit, seems to be on continuously even though no load other than the BMS is drawing from the battery. So, it's hard to establish that this circuit is charge limiting. At least I know the 12V pack, initially charged, was at 12.9V. I'll be measuring that voltage again later.

For now, the pack charger is removed when not in use. A mount will be constructed and the charger installed into it. After, it will be time to take the BugE out on it's first drive with the new pack.

On my BugE, all lighting plus the BMS is directly powered by the 12V battery. I did this since the battery safety cutoff circuit should stop all power being drawn from the pack including the DC-DC converter. That means in the event of a battery cutoff during a journey, not only would the BugE have no power, but it also would not be able to signal to other traffic that it had a problem!

I built my own wiring harness. The 12V system was built to be completely independent of the bottom of the BugE. That way, during assembly, I could just plug the + and - into the cowl lighting to test all lighting plus speedometer indicator lights without requiring the rest of the BugE to be present. Both cowl lighting and BMS run directly off a12V accessory battery (autocraft part#5L-BS). The size of the battery was picked due to it being on sale rather than being an optimal size. However, that battery size seems to work just fine. To charge the battery, I use a Sevcon DC-DC converter to feed into an ICP 7Amp solar charge controller. Not that either are optimal components. Both are much more expensive than are needed. However, to preserve the ability to go back to a lead-acid pack with no need for a supplemental accessory battery, I decided to keep the DC-DC converter arrangement as-is for now.

Post construction note:
If I were starting from scratch again, I would not muck about with a DC-DC converter at all. The weight savings isn't a big enough benefit. Instead, I would simply use a motorcycle battery with a separate 12v battery charger, mounted on the tail shelf where my DC-DC converter now sits.

Tuesday, June 14, 2011

Deciding pack orientation for lithium battery upgrade

When deciding how to install the batteries, it's useful to study photos. In the first photo is my setup for a lead-acid pack. Lifting up the rear, you'll see 4 Optima batteries plus Powercheq battery balancing modules on the shelf on the right. Note, the addition of a spatter shield wall that I made of fiber cloth with resin. I later added a rubber skirt for additional length plus a chain spatter shield. Since doing that, water has not been a problem for my BugE.

The next photo is from Allen Clark's installation. He decided to mount the lithium batteries to one side. This frees up some space for battery management electronics. In addition, I'm hoping I can fit a small 12V battery for emergency 12V accessory power. This would be needed in case the main pack goes into an unexpected shutdown while on a journey. If I was to use this configuration, the center hole in the front of the battery tray where the 12V harness goes through can not be used. Instead, a second hole would need to be drilled to the right. Fortunately, I left enough slack in the 12V wire harness that moving the pass-through location will not be a problem.

So, to check the arrangement of battery electronics and to avoid doing too much in a confined area, I decided to set up the lithium pack and electronics outside the BugE first. One issue I ran into was the inability of arranging a battery pack in series just by using the provided jumpers. I finally just made a cable to complete the series circuit (the brown cable on the bottom). The arrows trace how the jumpers make the cells into one big series circuit. The arrow path shows how the circuit begins at the (-) terminal and ends at the (+) terminal. Also, note the small stubby screwdriver on the lower left. When it comes to working on batteries, it's safety first! Either use a small stubby tool or at least wrap the metal stem of a regular screw driver with electric tape or heat-shrink so accidentally dropping it on the pack can't cause a short!

An alternate way of arranging batteries was suggested by Baka Nihao although his batteries are different in shape. The batteries in his tray are arranged in parallel and held in place for the season with "great stuff" insulating foam. I asked about battery management. He uses none. He also brought up an interesting point on having a separate 12V battery for lighting. If I was going to use a 12V battery for lighting and have it charge from from the main pack via a DC-DC converter, the battery will be in danger of being over charged.

Unlike Baka's setup, I have a 12V battery management system that will need continuous 12V power to balance cells in the large pack even if the pack needs to be shut down. So, I'm using an independent 12V motorcycle battery for powering the BMS. I'm going to try using a solar charge controller that I have left over from a previous project.

Saturday, June 4, 2011

The LiFeMnPO4 pack and BMS arrives. What next?

Note: This BMS system is no longer sold by Elite Power.  However, the batteries appear to still be available from electricmotorsport.com. As for my experience below, the batteries, charger and BMS came in two boxes. The batteries have removable purple covers. There is extra room in them. So, it's likely a different type of BMS boards could be installed under the covers to make the wiring look nice. Each set of four cells came pre-connected with metal bands on them (as shown in yellow box). Measuring the 4-pack gave a voltage of 13.1V . Also the BMS kit had a small LED bar graph display (middle black thing). Also, the vendor provided a larger LCD display as well. The reason it's "free" is that it has a display defect. It works, but it looks kinda ugly. Should I want to have a better looking one, I can purchase another one later. The BMS circuit boards came pre-wired, probably because I bought a "demo" system rather than a new one. On a new system, it's likely I would need to wire each board as I found it in the string. So, this is the "big picture" of how the battery management system should go together. Rick Suiter, my sales rep, emailed me instructions for a 24 cell model instead of a 16 cell model but I got the general idea. Like most things, these representative images are simpler than reality. Since I need to make some decisions on mounting locations, I decided to lay out the components. The LED bar graph looks like it can be press-mounted into a rectangular space, perhaps somewhere on my polycarbonate dashboard. The "Control Unit" also has a mounting hole for a screw. However, the "hub" has no native way to mount it. So, I can mound it somewhere with double-back tape. Wire length may be the deciding factor on where things get mounted. There were also some pieces that puzzled me. I got an assortment of additional metal pieces that I take to be conducting strips that work with the circuit boards. I'm also thinking having these strips will allow me to change the battery arrangement to have a wider or thinner pack. There were also some flat to round adapters. They puzzled me. Why so many? They seem rather wimpy for a mechanical connection. However, wimpy they appear to be, Rick assured me that the parts would be sufficient for the job. Plus, he sent a photo too. He states below:
For #4 wire you can fold the edges around the cable and crimp it with a die size one or two larger. I've done this with 4ga wire and it seems to work well. See the attached picture. Soldering is an option, but there seems to be issues in a vibration intensive environment where the solder joints can fatigue and micro crack. If you did want to solder I would crimp first then back flow solder in to the wire, that way you are not relying on the solderto hold the connection, it is just there for extra conductivity.
The other mysteries had to do with recommended interlocks to prevent the pack from being damaged from too much discharge. Looking over my parts, I found I had a mysterious small heat-shrink covered component which was the reset switch. Since it was too small to be captured by my camera, I used Sketchup to doodle out an approximate image of what the component looks like. On each end are the letters "L" and "D". So, from the response below, the "D" was supposed to be an "O". The little black piece with L and O on it is the low voltage cut off switch. ... The L side connects to the LIN hub, the O side is your output signal. You must provide a 12 volt and ground signal to the output side per the diagram, the middle wire is your switched signal for low voltage. I attached a document for the alarm cut out, it is for another version of the hardware, but the circuit on the last page will work to amplify the signal to drive a small relay directly if it is useful to you. Our warranty requires that the low voltage cut off be connected such that it disables the vehicle if a low voltage cell occurs. Speaking of loads, in the diagram, there are two DC-DC converters. One small one seems to be for only powering the LIN hub with "control unit". This converter apparently remains on 24/7. The other is the high capacity 12V DC/DC converter for everything else. The larger converter appears to be able to talk to the LIN hub as well. If a lithium cell either exceeds it's temperature or falls below a safe voltage, the BMS should "disable the vehicle" automatically. To do this, Rick offered the following suggestion. In most cases the alarm switch signal will be used to drive a relay which will either break an enable signal to the vehicle main controller or break the power to a main contactor coil. Since the 5 milliamp signal is typically insufficient to directly drive a relay the below circuit can be used to amplify the output signal enough to drive a relay coil.
This circuit can be built with Radio Shack parts:
MOSFET IRF510 Transistor Catalog #: 276-2072 0.5-Amp SPST Reed Relay at 12VDC Catalog #: 275-233 1N4001 Micro 1A Diodes Catalog #: 276-1101 1M Ohm 1/4-Watt Carbon Film Resistor Catalog #: 271-1356 However, warranty or not, it's safety first. I don't have a problem with the traction motor loosing power if the pack reaches it's discharge state. However, if I'm gliding to the side of the road, my BugE needs hazard lights to warn the other drivers behind me that this BugE is goin' down! So, how can I provide power to lights while the main pack recovers? Well, I need to re-think the decision of having a single DC-DC converter versus having a small 12V battery, charged with a 12v DC/DC converter. With Optima batteries, I think having a converter with no separate battery is the best approach. It's proven to be simple and effective. However, with a fussy lithium pack, a supplemental 12V battery is needed. So, this will require some changes to the wire harness to add a battery, charger, charge regulator and interlock. Then, there will be the challenge of finding a place on the BugE to mount a small motorcycle or gel cell battery. As they say, nothing is simple. As for where to mount the other components, it looks like the LED bar graph could be mounted on the transparent dashboard where the existing 48V meter is. I could mount the larger LCD display on the dashboard as well. However, given the condition of my "free" display, it's likely I'll only use it for testing but not for everyday driving. So, I'll probably Velcro that display to the glove box area so it can be easily removed when not needed.

Sunday, May 15, 2011

From Lead to Lithium - trading simplicity for performance

I've decided to trade simplicity for performance. The lead-acid pack with battery management circuitry was very easy to maintain. Just plug in & charge. Lots of warning if the pack was being overdrawn and there was no need for temperature monitoring. They were durable batteries but they just don't give me the range I want. So, I ordered a set of higher-performance batteries plus a battery management system from Elite Power.

16 GBS-LFMP60AH LiFeMnPO4 - (4 banks, 60AH each)
1 BMS-16S battery manage system (no display)
1 EMC48-15 charger
With shipping, it all came to $2083.88 As a bonus, they did throw in a slightly damaged display. It's missing a couple LCD lines but it still has some use to it.

Even still, the whole system is quite a chunk of change! However, it will be worth it if it finally allows me to be able to use the BugE as a commuter vehicle. Over time, I hope to save enough gasoline to justify the cost of the pack. If gasoline prices stay where they are, that should not be too hard to do.

As a performance comparison, my real-world test range on a slightly damaged 2- year old lead pack was 12 miles with varying speeds & hills. Comfortable around-town range seems to be 10 miles one way. So, from the anecdotal evidence of lithium performance, I'm expecting an improvement in range due to...

1) not being damaged, unlike my present lead-acid pack
2) being somewhat lighter than the lead-acid pack
3) being able to use more of the capacity without damaging the pack
4) having more charge/discharge cycles before performance deteriorates

So, it's not beyond imagination to think I might be able to make the commute distance of 20 miles depending on how much energy I loose to wind resistance and hills. In order to do it, I'll need a re-charge at work for the return journey.

My journey will consist of roads that have rather easy slopes and allow me to drive at low speeds most of the time. All roads I've picked typically have good visibility and people are used to looking for roadway hazards such as deer or slow moving farm equipment. I have no doubt I could complete the journey at 20mph but be out of energy if entirely done at 50mph. So, the task is to find an acceptable mix of faster and slower speeds to allow the journey to happen in a reasonable amount of time.

Tuesday, April 19, 2011

The BugE returns to the roadways!

This time of year it's hard to predict the weather. A day might start out nice, then be rainy and cold. When this happens and I'm riding on my petrol motorbike, I go through an extensive 15 minute "dress up" and "dress down" procedure. Options include using chaps, rain suit, boots, additional layers of clothing, gloves with liners, earplugs, sunglasses (more for eye protection due to bugs than sun protection) and applications of RainX and NeverFog to my helmet visor. This is all needed to deal with rain, wind and noise that comes with riding a conventional motorbike. Today, thanks to an inaccurate weather report, I needed every bit of that protection to get home from work today. After the biker "fun" in dealing with all the wet gear after the trip, I realized I still needed to go to the monthly Green Drinks event I host in the area. However, it was still raining!

So, instead of taking my car, I decided to drive the BugE. The contrast between my earlier motorcycle ride could not have been greater. I just unplugged the BugE, put on a light jacket and was immediately on the road. No protective motorcycle accessories required (other than a helmet). Even with a steady 36 degree drizzle, I arrived at my destination neither cold nor wet. Nice!

Friday, January 7, 2011

Winterizing the BugE

Roadway salt is harsh on all vehicles. So, once the first salt carrying snowplow rumbled by my house, I decided BugE season was over. No special steps for winterizing were needed. Just park it in the corner of a garage with a battery maintainer plugged in and cancel the insurance. Cover it, check it once a month or so. Once spring arrives, I'm hoping all I need to do is re-insure & go!

Saturday, November 6, 2010

No news is good news

It's oil change day today. I do oil changes for every appliance all at once since it's often a messy operation. So, my regular car, regular motorcycle, lawn mower & snow blower all had their seasonal oil change. The BugE also was included in this operation. It needed a few oil drops on the chain. The other oil changes took much longer.

As it gets colder, I see fewer motorcycles on the road now and practically none are seen during cold rainy days. However, the BugE is just fine with that sort of weather. The BugE takes away the windchill and rain so it's a practical vehicle to use for cold weather driving. Due to the lack of wind and rain, the experience is similar to driving a car that hasn't had it's heater warm up yet. Practically the same since an across town trip usually isn't enough for a car to get warm anyway. Lack of windshield wipers isn't a problem. The lens stays remarkably clear of road spray (although I don't tend to tailgate other cars either). Even with the low temperatures, the batteries still have enough performance to go across town.

However, the BugE is not problem free. When parked in temperatures close to the dew point, the lens attracts fog (or ice if below freezing) Fortunately, it's not a problem while driving. Only when the BugE is parked. Parking in my garage eliminates this problem and it's usually not a problem with quick trips. However, it is a problem if the BugE is outside for several hours. Because of this, I now apply "never fog" to the inside of the lens with a microfiber cloth and I may try applying "rain-x" to the outside. Someday, if I truly get ambitious, I may try installing an electric Frost Fighter Kit .

Tuesday, September 14, 2010

New packs are available!

Alan M. Clark, one of the first BugE owners I had contact with, has upgraded his BugE with a lithium battery pack. He reports he's found a kit that fits in the BugE nicely and now gives him an incredible 42 mile test range! He also reports the BugE is now lighter in weight so acceleration is quicker and his stopping distance has been decreased as well!

I'm guessing a more realistic performance in my hilly area that would not stress the batteries would probably be 30mi @30mph or some combination of speed/range. As for overall value, lithium packs are more expensive but they should also have a longer service life than glass mat Optima batteries. So far, my pack suits my needs. However, when replacement time arrives, more people should have experience with these packs so it should be clearer if these packs really are as good as the specifications would suggest. I'm also hopeful that a recycling system will be made for these packs so the depleted lithium won't just be lost to landfills. For more information, check the link to the site HERE

Note, these batteries are no longer available from Elite Power,  However, they appear to still be available at https://www.electricmotorsport.com

Tuesday, August 17, 2010

My first official breakdown - a simple fix.

For the past week, the thumb throttle on the BugE has been acting rather touchy. Acceleration was more jumpy than I was used to. I was aware from the Google Groups that there were a batch of thumb throttles that were found to be bad. So, I really should have replaced it with a better control but it was a repair that was easy to put off. After all, it wasn't THAT bad.

Well, it turns out it was. After hosting a Green Drinks event, it was time to go home. So I pulled out, then had enough speed to go through a traffic light, then tried to accellerate more and...nothing! Fortunately, I had enough momentum that I could glide safely to a lit parking lot. At first, I thought maybe a lose spade connector was at fault. No such luck! The thumb throttle had finally failed. Since I didn't happen to have an extra throttle with me, I called AAA to have the BugE picked up by flatbed and brought to my house.

After putting the BugE away, I decided to upgrade to a nicer twist-grip throttle. I found a supplier on Ebay and had it delivered in three days. Then, I just attached the throttle to the handle bar with two screws, ran the cable to the speed controller, crimped on a couple of spade connectors, plugged them in and I'm done!

Although breakdowns are never fun, the fact my "auto-shop" is next to my house and labor is always free sort of makes up for it.

Tuesday, July 27, 2010

Laundry day with the BugE

My washer at home decided to start leaking. Unfortunately I don't have enough clothes to wear until my washer gets fixed. Fortunately, the BugE has ample cargo space for my laundry which can then be shuttled to the nearest laundromat. Just load up the BugE & go! Believe it or not, all my weekly laundry (minus the hamper) can fit in that cargo space. It's bigger than it looks!

Friday, May 28, 2010

Usage observations

So far, my BugE has been pretty well behaved. My suspension upgrade of lifters & frame sliders continues to give a very smooth ride in spite of potholes and railroad tracks. I've done round-trips to all 4 corners of my town and have demonstrated that I can still be in the upper green of my charge meter when I do it. I do need to "think" while driving as I do on a motorcycle since the BugE is a small vehicle among giants. However, I don't have a problem keeping up with in-town 30-40mph traffic. I still get more waves and smiles per mile than any other car except perhaps an ice-cream truck. I'm also starting to realize some nice cost savings by using this as my town runabout instead of my car. No gasoline, no oil, no exhaust system, no coolant, no transmission fluid, no "check-engine" light. I also really like the ability to carry stuff easier than I can on a motorcycle. Also, I don't need to dress in a rain suit when I just need to go on a simple errand. Trip after trip, the BugE is able to get me there and back.

As for the fear of "running out" of electricity, it's not really a problem. Driving the BugE is kind of like driving a horse. Gradual speedup gives much better range than doing full speed sprints. Just like a horse, the BugE will last longer if not being driven as hard. If the BugE is "tired" (meaning the meter is going into the lower green zone) let it rest. Parking for even 10 minutes will let the batteries get most of their performance back. Then, when I go back home, I need to plug it in to "feed" it.

Monday, May 3, 2010

So, what the heck happened?

Got the motor back via UPS. I also talked to the person who repaired the motor. I found out my motor was not damaged by water. Instead, one of two things may have happened. First, there may have been a factory defect in the "core" piece of the motor. Second, the "core" may have failed due to driving habits. Turns out, if a motor has lots of current but can't move (maybe it's on a hill) then the windings can overheat. When that happens, some windings might short and the commutator can warp too.

So, to play it safe with the motor, I have changed my driving habits a bit. First, I avoid "flooring" the throttle just to show off, especially when going up steep hills. I find cruising at 30MPH keeps up with traffic yet doesn't lose too much energy due to wind resistance. Since doing these simple changes, I've discovered my range across town has increased dramatically.

Thursday, April 15, 2010

Top speed mystery solved.

For the last few trips, I figured my lower top speed was due to a damaged battery in my pack. However, I noticed even if I totally opened up the throttle, the batteries would dip a little but still stay in the upper green. So I figured something else must be wrong. On the last few trips, I would think I would smell something that seemed electrical or possibly a dragging brake but I could never pinpoint it. Then, today, when in a 40mph zone, I noticed I could not get above 30 on flat roadway with the throttle wide open and still in the green!

When I got home, I Immediately inspected the BugE to see if I could pinpoint the problem. The rear parking brake was cool. The front brakes were warm as expected but not excessively hot. The splash plate had come undone and was rubbing against the tire but that would not possibly be enough to slow the BugE down that much. The motor controller was cool too.

Finally, I inspected the motor. Very hot! At first, I thought the chain may have been miss-aligned. It had a little slack in it but it looked OK and had plenty of grease on it. The sprocket teeth also looked OK too. So, I re-aligned the rear tire, tensioned the chain and took it for another test drive around the block. Same thing - poor top speed and the motor heated up again. Normally, the motor runs cool so this was very unusual. The last symptom was that that the motor now makes a sound similar to what I thought was a miss-aligned chain drive. However, when I took off the drive chain, I noticed the sound was still present! It was quite a bit different from the "Boba-Fett" whine it normally makes when underway.

I then decided to take the end motor cover off to check the brushes. No signs of rust and it was not terribly dirty. What I did find was a very uneven commutator pickup with lots of carbon on it and an end bearing that did not turn very well. When operating, the brushes were bouncing up and down quite a bit! That apparently was where the "chain sound" was coming from.

So, I contacted the Advanced DC motor people. They recommended a motor shop relatively near where I live. Since the motor is more than two years old, this problem isn't covered by the manufacturer. However, the repair place I took it to replaced the whole "core" and gave me a new 6 month warranty. Although it was no fun paying for that, there was one bright spot. Unlike a car or even a street motorcycle, it was easy for me to extract my motor and bring it to the repair shop myself.

Saturday, March 27, 2010

Works better if I plug it in.

Turns out my charger was in trickle charge mode. 2a@12v. That charge, split between 4 batteries (with the powercheq mods) is not a lot of power to replenish the pack. That suggests the batteries may have simply been under charged on my second set of trips. So, i suspect I had the volts, but not the amps. However, waiting for a full charge has restored the pack.

The adventure into the 12v/powercheq way of charging is just a temporary measure. When my 48v side charger failed (from dropping one too many times) I thought about just getting another to replace it. The problem is, they are over $150! Instead, I'll be trying (4) Black-and-decker 12v-2a mini chargers. These don't charge up fast but four of these are less expensive than another 48v charger. They should also balance the pack when charging. Charging at 8AH, it would take 27.5hours to completely replenish the theoretical 220AH capacity of the pack. However, I don't anticipate drawing down the pack that far. If I drive moderately, I should be OK with overnight charging. Not that this will make a huge difference in my electric bill. The whole charging system will use in the neighborhood of 96W. So, I expect the charging cost on my utility bill would be approximately like leaving my porch light on all night.

The chargers could be mounted in the battery pan or on a shelf similar to the ones in this photo. Why use this particular Black and Decker kit? Each charger outputs 2A (versus normal 1A that most battery maintaners output). Plus, they come with all the cords shown which would save the trouble of putting on molex disconnects for future maintenance. These charger kits are available for $19.95 ea. (plus $4 shipping) from Tyler Tools.

Thursday, March 25, 2010

Water Bug!

It's been raining quite a bit. So, I again decided to see how the BugE would do. It is very convenient!

The Good. The cowl protects against windchill and rain REALLY WELL on rainy days. Much better than it's shape would suggest. I have not needed gloves nor chaps. Just wearing a sensible coat allows me to arrive warm and dry - even in 35 degree rainy weather! The front brakes work BETTER in the rain. That was handy for two panic stops I did! As for visibility, the "road film" on a car windshields does not seem to be forming on the BugE canopy. A bird did poo on it. However some water/vinegar mix and a microfiber cloth removed it off just fine! On a rainy day, I just take the BugE out of the cycle shelter, unplug it, put on helmet, get in and go! (note, if unplugging in rain, outlet should be GFI) Also, now that people in town have seen it in action, I don't get stopped as often by people with questions.

The Bad. I unfortunately when I constructed it, I didn't seal the cargo area well enough so rain collected in the cargo area. For now, I just drilled a hole in the bottom to let the water flow out but I'll be putting a better seal around the door. Also, the foot well is collecting water from my wet shoes however two small drain holes can take care of that. Also, I've noticed potholes around town are quite large so I need to pay attention to road conditions much more than I would in a 4-wheel car.

The Ugly. Today, I used the BugE for three round trips downtown at rather slow speed (15-20mph). Each round trip was around two miles each (although, I will say, these trips DO have some hills which may be why range seems so low). I did opportunity charge at home, but apparently not enough. On the last leg of the 3rd trip, the needle again went completely limp when my throttle was applied going up the final hill. So, this time, I pulled over and waited a few minutes. The pack recovered enough to make the hill and get me home again. I later found that I hadn't left home with a full charge since it was set to trickle charge mode instead of full charge.

Originally, I charged with a 48V external charger. However, it was dropped one too many times so it doesn't work. So, I'm now charging with an automotive 12V charger and relying on the powercheq modules to even out the charging. I'll eventually be installing 4 individual low profile 2A-12V on board chargers instead of one big charger. Now I know the terrain limits around my area, I should be able to drive without running into range problems.

Sunday, March 21, 2010

A test of it's range - lead-acid pack

40 degrees, sunny. It would be a cold day for a regular biker but the BugE protects against windchill so there was no need for gloves or chaps. Just regular street clothing & a helmet.

So, I started out.

2.6 miles from home to walmart, the streets were stop & go for 3 stop signs, then 40mph down a hilly boulevard. Kept up with traffic and even passed a few cars :) I stopped for around 10 minutes, got groceries. Then decided to visit the park. It's 3.8 miles from Walmart. To get there, 40mph down boulevard again, full throttle to climb a hill, then more stop-go back street driving. The majority of the journey, I maintained 30mph with light traffic. When I got there, I decided instead of stopping at the park, I would head home - which I realized was now around 3 miles away on a slight uphill grade! So, the return speed was kept to 28mph, then I slowed to 25mph with needle creeping lower each time as throttle was applied. By the last mile, the needle was completely limp when throttle was applied but I managed to maintain 15mph through downtown where I knew speeds could stay slow. I almost pulled over to let the batteries recover but parking wasn't favorable to that plan. What was really disturbing was in the last 1000 feet when the controller started to turn off, then on. I managed to make it home & do a last climb up the driveway.

I noticed at the last two stops, that turning the headlight off at traffic lights (but not brake light or turn signals) helped the needle creep back into the green zone until it went limp again when the throttle was used.

So, there it is, a variety of driving. I can't say I'm thrilled with the experience of my last mile but "resting" the pack and opportunity charging should allow me to safely stay under this tested range.

My Optimas D45s are now two years old (bought in spring of 2008) and they would spend months not connected to a charger during construction and refits. Plus, there was the shorting incident which took away even more performance. Since shorting two of the batteries, I've no longer been able to reach over 50mph even down hill with that pack. So, I did not expect full performance.

Thursday, March 18, 2010

BugE - now road legal in New York!

Finally, FINALLY, after all this time, I managed to get a plate from the NY-DMV!

I decided to take the BugE for an across town trip. OMG! This thing is fun! At first, I was a bit conservative on my route, only going along back roads. However, after getting used to how the vehicle worked, I was soon flying down the main strip with no problems keeping up with traffic! Acceleration remained good through the journey and battery life was much better than expected (probably due to the powercheq modules). I criss-crossed from one side of town to the other and was still safely in the upper part of the green zone when I returned. Both suspension changes work great - even over railroad tracks! Clear skies, nice sunset. Truly a fun ride! I ended the ride with a well earned beer at the local bar.

However, it has all been a bitter-sweet experience. Thanks to New York State, this simple vehicle became needlessly expensive in terms of up-front money and time. Paying sales tax on my own home-built vehicle made of retail parts was a final insult. However, it's over. Now, I just pay motorcycle rates for registration, inspection and insurance (just over $200 for the year). Of course, I also don't need to buy gas either - just occasional batteries. If I go for a different battery technology such as nickel iron, I may not even need to do that again either! Repairs of course are now very affordable and hopefully infrequent too. If I were to use my 200W solar array, it would even be Fusion powered!

So, I've gotta say, after a long journey, the future has arrived!

Monday, January 25, 2010

Sway bar and splash guard upgrades

The shock mount problem is specific to 2007/2008 models.

The shock mounts were too short on the 2007/2008 models. Mark Murphy, the designer of the BugE kits has informed the group that later models will not have this problem. Still, there may be some BugEs on the road that never had this issue fixed. It's referred to as the "chitty-chitty-Bang-Bang" phenomena since the "Bang" is the cowl meeting the frame as the vehicle goes over bumps. One remedy is to install plates to lift the bottom shock mount so the shock can move a longer distance over bumps. The plates I installed are similar to the photo on the left (photo by Fred_dot_u). A custom set of these plates were made for me by another BugE builder, Sammy L. Rogers. Thanks Sammy! Another way to fix this would be to lift the whole cowl up slightly by using the "cowl retrofit" kit which was offered at a later time by BlueSky. Most owners I suspect have done one or both of these solutions.

If using the plate solution, I discovered another problem. Originally, a stabilizer bar was present which allowed up-down movement with only a little bit of side-to-side movement. With the inner frame section lifted, the geometry of the stabilizer bar changed so it would cause an exaggerated side-to-side movement. Over time, this side-to-side movement could fatigue the central shock mount enough to eventually cause a failure.

Here's one way to correct the stabilizer problem. The approach is to discard the stabilizer bar entirely and instead use two assemblies on each side of the outside frame that allows up-down but not right-left movement of the inner frame. The parts are quite basic. Two slider pads are mounted towards the bottom of the inner frame (see image). The sliders on either side of the inner frame then press against pieces of slippery plastic on either side of the outer frame. The section of plastic is supported from behind by small pieces of thick strap iron so the material stays stiff. This arrangement gives a slippery, yet firm surface which limits side-to-side movement while still allowing up-down movement.

The parts for a retrofit are quite simple. The sliders are "as seen on TV" sliders available at Home Depot. A cut down section of plastic cutting board makes a slippery and rust-proof sliding surface. The metal support pieces are simply some 3 1/4"sections of strap iron I use for spacers with a hole for the bottom bolt to secure them. Bolts are 2 1/2" 1/4x20 with nylock nuts. The metal piece with the three holes were made from sheet metal. The edges are bent up give it a stiffer strength.

The photo on the left is the left-side assembly installed for a test fit to show how the parts would go together. Jumping up and down on the inner frame shows smooth movement up and down but virtually no right-left movement. Very fun to prove!

The next photo on the right shows the right-hand assembly installed with the battery tray and cowl sections installed. The painted assembly was trimmed down for clearance. The further forward the assembly can be moved, the more clearance from the battery tray lip it will have. Had I mounted the sliders all the way at the end of the inner frame, the original untrimmed assembly would have allowed quite a bit of movement before encountering the bottom of the cowl. However, it is my hope I never encounter a bump requiring even close to that amount of movement!

I've put around 200 miles with this stabilizer arrangement. I have found some pretty big pot holes for testing and the BugE goes over them just fine.

While doing frame work, I also thought I might correct another problem too. This photo is an image of a small fiberglass wall I made out of 4 sheets of fiberglass cloth made stiff with fiberglass resin. This wall, working with the existing splatter shield, limits the amount of spatter from the rear wheel that makes it to the rear electronics. It also stops drips moving along the top of the body section as well. Since I had more cloth and resin left over, I also converted the seat bolts to permanent fiberglass hard points too.

In rain, this wall works well. When I first tried it, a little spatter would make the rear of the DC-DC controller wet. I've since extended the length with a two inch rubber skirt held on by rivets which has taken care of that problem.

I also found that the foot wells would collect small puddles of water from my wet shoes. So I drilled two holes at the far ends of each foot well so that water could drain out. These small modifications seemed to have taken care of the rain issues.

Monday, December 14, 2009

After months of investigation, NY-DMV manages to get it wrong anyway.

Ok, so I finally get a certificate which shows my vehicle can be registered. Let's see. VIN is right. My name is spelled right. Obviously the address is right otherwise I would not have gotten it. Oh, and apparently, I need to give the new owner this letter if I ever sell it so I'm guessing I don't get a conventional title mailed to me as I would with a normal vehicle?

Yippee...aw...Cmon! You gotta be kidding!

The vehicle weight is written as 3660 lbs which is the weight of the transport rather than the BugE weight. The BugE only weighs 440lbs. So, what makes more sense? A 440lb motorcycle hauled around on a 3600lb transport or the other way around? This large weight may not have that big of a consequence when it comes to registering. However, it would have a huge consequence when insuring it! That is, if a small 440lb vehicle slams into something it's a lot different than a 3660 pound thing!

So, I write a letter to my DMV caseworker asking what to do. Instead of a letter saying I should send back the inaccurate letter for revising, I get a letter back saying I should contact the weighing company and then sort it all out at my local DMV office! Riiiiight. But hey, at least I got THAT suggestion in writing. So, if it is possible for my local DMV person to update the records to the proper weight, they now have clear authority to do so. I just hope the 3660 weight isn't in "the system" as such. It would be a real pain if someone pulling the VIN for something like a CARFAX got the high weight and quoted insurance based on that. Hmm, what are the odds.....

Anyway, it's getting close to refit time too. The custom refit parts for lifting the front shock mount should be arriving most any day. Also, the rear BugE bumpers have become crushed over time so I have replaced them with hockey pucks. They are only $0.99 retail and work remarkably well! I was also going to put in a defroster but I think a built-in heated one of sufficient size would probably kill the batteries. So, I'll be relying on "Never Fog" and "Rain-X" instead. If the canopy can start out without fogging then the little inside fan circulating cold air should be good enough to prevent additional fogging from happening while under way.

POST CONSTRUCTION NOTE
The journey has been very long. However, I do now have the satisfaction of being able to have broken the ice for anyone else who wants to build three wheel ELECTRIC vehicles in New York. A second BugE of the same layout would not face nearly as much trouble as I did. That's why my license plate is displayed on the website. It PROVES a BugE can be built, registered and insured successfully in New York State.

Sunday, December 6, 2009

Turn signals, tail lights and weighing the BugE.

Turns out Technical Services doesn't just automatically send out a VS-103 form. No, no, no! My NYS caseworker found more problems. Some are legitimate. Others, well, probably not so much.

The first problem that my caseworker had was that the side driving lights that I understood were acceptable now are not. (dang, I KNEW I should have clarified that in writing rather than taking his word over the phone that I could keep them). I then a
sked if I could put some approved reflectors over the holes and specified the type and location of the reflectors. He responded to my email by another email that it was OK. GOOD. At least I got that in writing. I replaced the lights with reflectors and took another set of photos. Thank goodness for digital cameras! It is curious though how I got an inspection appointment if these lights were not OK. After all, I did submit photos of my vehicle along with the application when the side lights were clearly visible in the 4-photos that I was required to submit with my application.

Then, he wanted to confirm the turn signals are DOT approved. So, I sent them documentation HERE and HERE plus I referred to the receipts I submitted earlier showing that I had indeed bought them. Not good enough? He also wanted a photo of the markings on the lamp. So, after a fruitless search for K&S closeups that showed the lettering on the lamps, I decided I needed to find a way to make an otherwise nearly invisible set of lettering visible. So, I smeared on some turtle-wax to make the lettering stand out enough to be photographed. After photographing the lamp, I just rubbed the wax off.

Just in case he wants it, I also saved a photograph of the tail light too. It's an OEM tail light I bought on Ebay. It is a nice lamp and it's a perfect fit but it's also nearly 25 years old! However, it was one of the only tail lights I could find that had proper SAE/DOT markings on it.

I had the same problem with the headlights. Only one website finally had the sense to mention the headlights they were selling were DOT/SAE approved and listed the markings found on them.

The final issue was that the weight certificate I got earlier should have had a VIN number on it. In the description, they just filled in the description with "general freight" rather than writing the VIN number in the field. Unfortunately, that was my fault. So, I had to drag the BugE back to the weighing station for another go. But hey, I learned from that experience.

So, since the DMV doesn't provide detailed instructions on how to weigh a vehicle in an acceptable way, I'm providing suggestions here!

So, here are my tips on weighing a vehicle for DMV registration.
  • Since you'll need to unload your vehicle quickly (perhaps in front of impatient truckers), use a ramp trailer.
  • If using U-HAUL ramp trailer, don't just assume the reservation via the web means anything. You should call ahead to make sure they REALLY have a trailer waiting for you. Apparently only reservations taken 24 hours ahead mean anything.
  • Before driving on the pads, visit the weighing operator (likely the same person who also collects fuel payments and sells other merchandise too). Tell him/her that your BugE is very light in weight so you'll need to weigh with the vehicle on, then re-weigh with it off. Sometimes a "re-weigh" is less expensive than weighing it twice. To get a feel for prices, the price for weighing was $9. A re-weigh was only $1 more.
  • Now, this is the MOST important step. Read THIS STEP TWICE so you make sure you get it right! In the comment section of the weight certificate, have them type the VIN number of your vehicle that Field Investigation issued to you during inspection. If you don't have the VIN you can't prove you were weighing the vehicle rather than a box of rocks. Make SURE they type the VIN on the certificate rather than "general freight" or some other ambiguous comment.
  • Then, drive the car, trailer (with your BugE on the trailer) onto the pads. Communicate via intercom for them to do the first weighing. Then unload the BugE. Tell them you're ready for a "re-weigh".
  • Then load the BugE back on your trailer, drive off the scales and fetch your copy of both weighing certificates!
Of course, with every email or letter I send, I'll need to wait for a week before prodding them with another email or phone call asking if the have enough for the next step. Next, I wait for the VS-103 form. I then need to trailer the BugE to a private motorcycle shop (since that's a "safety inspection station"). Why this second inspection isn't combined with the the field investigation inspection is beyond me. Do they really think Elmo the motorcycle guy is more qualified to inspect a vehicle than a field investigation officer?

It's ironic that I got a letter from my state assembly man asking support in cutting taxes due to waste in state government. I think I have an idea or two for him.


Tuesday, November 17, 2009

VIN Inspection day.

The night before, it was time to pick up my reserved 5x9 uhaul trailer with a ramp. A couple weeks ago, I reserved one online. So, I figure arriving at the u-haul place at 6pm gives plenty of time to recover from mistakes.

They didn't have it.

Fortunately, it was early in the evening so I still had some options. The least favorite option would be to use a trailer without a lift gate. Since I would likely be loading and unloading the BugE several times, and each time it would require another person, that was not an attractive option for me. Fortunately, after making several calls, the clerk eventually found a ramp trailer from another location I could use. Whew! It was an extra 50 miles of driving to fetch it, but hey, I got a trailer.

So, I load the BugE on the trailer so it's ready to go. It's getting late. Time to tie it down. Dang! Busted off the mirror mount! Fortunately, I had access to tools and materials for a quick fix. After doing the repair, I decided to do a final test drive (top speed was only 42 but I attribute that to cold batteries). Other than that, all systems checked out. So, put the BugE back on the trailer being much more careful when tying it down.

Morning arrives. It's a crisp autumn day. A little too crisp. The temperature dipped down into the 20's. So, I go out that morning to find that the BugE canopy covered with thick frost! Fortunately, it was early enough in the morning that i could cover the canopy with a motorcycle cover and run a hair dryer to melt the frost into water beads. Not great, but at least I can see through a bunch of frozen water beads. During the journey, the water beads didn't go away but at least it didn't get worse. Fortunately, once I parked the BugE in the DMV parking lot, the beads eventually melted and evaporated away.

So, I drove the BugE in line with other cars who need VIN investigations for one reason or another. Fortunately, I brought a book. Once my turn comes, I drive the BugE into the DMV garage. The guy is nice and seems genuinely interested in the vehicle. So I give a tour of the BugE controls, give them a tour of my pre-made notebook itemizing all purchases and then I get escorted to the waiting room. Although I didn't see the inspection process, I'm thinking that they were more interested in examining the purchases featured in the notebook than establishing the BugE could perform as needed. Glad I brought that notebook! Eventually, a nice shiny yellow VIN certificate is glued to the side of the frame and I'm able to load it back on the trailer. Yipee!

Well, not really. The Field Investigation office needs to fax the MV-272.1 form back to technical services. Then technical services mails a VS-103 form back to my address. So, more waiting. Then, I get to trailer the BugE AGAIN to a "safety inspection" station (read 'local motorcycle shop') where they will apparently ponder the boxes on a VS-103 form which they might see once in their lives and fill it out best they can. Why the field investigation people aren't trusted to inspect headlights and tail lights is a mystery especially since they are the ones who pull people over for lighting should a vehicle not meet inspection requirements!

What was also interesting was the guy who inspected my vehicle also said, "I'll fax them a copy today. However, you should wait a week, then give them a call to follow up." Based on past experience, I expect I'll need to contact them. I've been doing communication in writing when I can so a record is kept.

Anyway, the inspection process killed the morning, but I still had some afternoon left. So, I decided to get a weight certificate. This private inspection station was on the "approved" list of stations I could take my BugE to. So, I avoid the big rigs, pay my $10 to the cashier and drive the BugE on the truck drive-on scales. Then I realize the truck scales in the photo have two problems. First, they aren't sensitive enough to just measure the BugE. Second, to request a weighing from the weight operator, the weighing station buttons were VERY high (since truckers don't want to get out of their cabs). So, I had to find a long stick to push them. It was almost comical. Fortunately, there were few trucks that day. So, I did a tare-weight of the car and trailer. Then I drove the BugE on to get the weight difference. I found my BugE weighs in at 440lbs.

Unfortunately, I was to discover that weighing the BugE did me no good at all this day. In the description, the weight operator just put in "general freight" rather than typing in the VIN number. It wasn't their fault - I didn't tell them to type it in. Due to this, I was to discover later that the VIN omission on the weighing slip made this weighing a useless exersize.

Sunday, November 15, 2009

Motor & headlight interlock

Since this vehicle is a motorcycle, the traction motor should not be operated without an interlock requiring the headlight to be illuminated either in a high-beam or low-beam state. So, the idea is to tap into the 12V going from the handle bar to the lamp from either the high or low beam light circuits to energize a small relay. This little relay will then interrupt the throttle signal, making the speed controller provide no power to the motor.

Sounds simple. Ah, but life isn't so simple. I can't just tap the high-beam wire & tap the low-beam wire, then tie them together so when either one is powered. Otherwise, both filaments stay on since one feeds the other where they meet which would be just before the relay coil. So, I need to put some diodes in to prevent this back-feeding. Also, when using the handlebar control to switch from high-beam to low-beam I noticed there is a tiny bit of time when neither circuit is powered. This can make the small relay drop it's contact, which is probably not a thing we want happening when underway. So, a capacitor has been added to power the relay coil for a brief amount of time during hi-low or low-hi switchover. The capacitor has a rating of more than twice what I needed so the relay will stay energized several seconds after the lighting is switched off.

Here's the schematic for that part of the circuit.  Part numbers are Radio Shack parts.  In the photo, I also used an optional relay socket in case the relay needed to be switched out quickly.  So far, the relay seems to be operating flawlessly.  So, a quick switch out socket probably isn't needed. 


Wednesday, October 21, 2009

Hey, poke...poke...anyone alive in Albany NY?

Since my last email to the Field Investigation caseworker was apparently ignored, I decided to write again to see if there was anything I could do to speed up the process. When it comes to government rules, one just never knows. The silliest thing might hang up a process and I wanted to make sure my paperwork was not waiting for something silly - such as a fax of a blank piece of paper to prove the back of the certificate was indeed blank.

As I look at the dates of when things happen, I can't help but think some major foot dragging is going on when it comes to processing the paperwork. So, as an incentive for them to move a bit quicker on this, I did point out in the email that I have done talks on this vehicle in the past and that I will be continuing my presentation at this year's activism symposium at Wells College. I can't be sure if that dislodged the paperwork so it could go to the next step. However, I did get a reply the same day and I was informed the letter for my inspection date went out the day before. Coincidence? It's hard to say. Now, back to waiting....

Monday, August 31, 2009

Auburn NY Newspaper features the BugE!

This was the color photo that went with the newspaper article. One major change from the plans is that big ole headlight that New York State insisted upon. I also replaced the Eurosport mirrors with larger pickup truck mirrors that work much better. Because the turn signals are not built into the new mirrors, I have added some K&S DOT approved blinkers for the front. The tail light and rear turn signals have been upgraded with lights that have clearly marked DOT markings on it.

I went through the receipts so the inspection people have something to base sales tax on. The major component cost came in at $7200. The kit can be built for less. However, my vehicle has some optional features that drove up the price. For example, I added more wiring for reverse, a Powercheq battery management system, a dc-dc converter with more capacity and a seat slider. This amount doesn't include all the fiddly bits such as nuts, bolts, connectors, paint, tools and materials I used from previous projects. It also does not include the special journeys to the store I made when I was short a bolt or two. The true cost also includes upgraded parts not used, excess materials not used, some new tools plus a nice tool chest to keep them in, garage floor refinishing materials, painting supplies, respirator cartridges, small shop vac and even a trailer hitch installed on my OTHER car so I can haul the BugE around! Plus, it also includes a cycle shelter to keep it in. This much larger total came to around $12k. However, these things are not "in" the car. So, when people ask, how much did it cost for my little adventure (or rather how much would a new BugE really cost for them) it depends. Of course, my labor isn't counted in this total either. But hey, it's my first attempt at putting together an electric vehicle. Given how much a custom motorcycle can cost I think I did quite well!

I've also saved up enough money to go the next step which is to register and insure it. So, I've filled out the paperwork to get a VIN.

The packet came with a form that explained what I needed to do. I needed to send some paperwork to Technical Services and a multi-copy form (with a check) to the field investigation department.

Obviously, NY-DOT hasn't inspected very many electric motorcycles. Some fields such as "fuel type" could be filled in by "electric" and it makes sense. However, other fields such as "displacement" are rather tricky. So, I just put in 150CC and then a side note that it was just a guess on equivalent power. I also had to loosen the motor clamp to read the motor serial number. I found out I have number 701. The weight field I left blank since I was informed by my caseworker that I could provide the weight upon registration rather than make a special trip to a NYS approved weighing station just to fill in the blank. So, I gave an approximate weight of 400lbs with batteries just in case they need a ballpark figure for some reason. Along with the form, I need to send copies of receipts for "major components". So, the packet I sent off was quite large at that point.

Now, it's time to wait. Since the request is being shared between two state offices, I'm expecting quite a long wait. I just hope I can get the vehicle registered before December 31st so I can qualify for the Federal tax break. Given that it's September, and it's New York State, I'm thinking I'm cutting this awfully close!

Saturday, August 8, 2009

The Retrofit - driven by New York State

My busy summer has slowed down enough so I finally had some time to work on the BugE! The retrofit to comply with NYS-DOT requirements is now done. I also did some other improvements as well.
  • Abandoned idea of 3-way braking. Locking the rear wheel is just too big a risk. If the rear wheel were to lock with uneven front wheel braking, it's almost a guaranteed spin & flip. Keeping the rear wheel freewheeling will mean the vehicle takes longer to stop but would tend to stay straight on a roadway surface rather than flipping if braking action locked up wheels. I may extend braking arms on the front wheels for more brake leverage.
  • Replaced Eurosport mirrors with Izuzu pickup truck mirrors. They are much better! (and since they are surplus OEM parts, by their nature they are also DOT compliant).
  • Made a new wiring harness to provide two additional switched DC circuits (one I'll be using to power Navigator lights which are now accessory lights rather than primary headlights the other is there for future use). Wire runs are shorter, color coded and MUCH easier to troubleshoot.
  • Made transparent dashboard in arch area with three accessory switches (fan, nav lights & extra switch) plus room for a car radio faceplate. One nice benefit is that a clear dashboard makes behind-the-dash wiring changes very easy to do.
  • Recording the wiring harness measurements in case I want to offer a harness kit.
  • For now, mounting the retro 48v meter behind transparent dash where the radio would go. Eventually, I may go digital with the power meter so I've mounted it so it can be easily swapped out for something nicer looking.
The next step is the worst. I apply for a homebuilt vehicle inspection appointment. Then THEY pick out a time for it to happen. Then I frantically trailer the BugE to the nearest inspection location (For me, it's a 45 minute drive to Syracuse) Then of course, even with my pre-inspection questioning, they may still find something wrong with it!

Before starting this paperwork process, I gotta save up to pay New York State sales tax on my own vehicle! Plus I need to save up for trailer rental, insurance, registration, inspection and weighing station fees. Then, I need to work on a nice looking purchase portfolio so I can show where all the components went on the vehicle so the cops don't think I made it out of stolen parts. The more I claim went into the vehicle, the greater the money New York State gets. This amount is also what the federal electric vehicle tax credit will be based on too. So, in a twist of events, the more New York State takes, the more I could get back from the Federal government!

With the help of an independent insurance agent, I did at least find an insurer for the vehicle (liability only). It was insured for a day. However, I've kept the expired insurance card in case there is any question from the DOT that the vehicle could be insured.

Thursday, July 23, 2009

A revised dashboard and wiring harness.

Since I'm changing the type and location of lighting, it's a perfect time to also make the wiring neater and add a dashboard. Here's the design criteria
  • I decided to use the same wire color coding scheme as before will make future wiring expansion or troubleshooting easier. Although tempting, I decided against using a fancy fuse block. The wiring just isn't that hard to troubleshoot. Instead, I'm going to simply have inline fuses.
  • DOT and NHTSA requires a motorcycle grade headlight (which must HAVE motorcycle markings on the lens) and turn signals in approved positions. So, the HI/LO headlight and turn signal wires need to be long enough to reach the front of the vehicle. Same with the ground wires. I'll be keeping the dual-navigator lights in the old positions on switched 12V just because I got-em.
  • I really like the idea of being able to take the cowl off for servicing. So I'll be keeping the molex connector used between the cowl and chassis.
  • I like having the speedometer (plus indicator lights) on the handlebars as well. (the handlebar area includes brakes, throttle, speedometer and lighting controls) I probably could simplified the wiring a bit by putting this bit of instrumentation on the dashboard, but I think having the speedometer on the handlebars looks better. For now, I'll have molex connectors mounted in the dashboard for quick-disconnect but I may make an extension to the wiring so I can run them up the steering stalk instead of having wires going directly out the dashboard.
  • I wanted to fit the dashboard in the area under the arch and have it be transparent so people can see roughly how the BugE is wired. However, when lifting the cowl, I usually grab this lip to lift it. That means the new dashboard will need to be mounted with screws so it can be detached on occasions when the cowl needs to be lifted off.
  • I put in three accessory switches. One for fan, one for the old navigator lights and an accessory switch for future use. I also wanted to leave enough room for a future car radio.
  • I also wanted to put in a "Signal Minder" type box rather than the plain turn signal relay that shipped with the kit. So, I added additional spade connector taps that the signal minder box would need.
  • For now, I put in the retro 48V charge indicator behind the dashboard (rather, behind it which is one of the benefits to having a transparent dash). Eventually, I would like to get rid of that 70's looking thing and buy or build a circuit to allow the digital E-F indicator in the speedometer to represent electric capacity.
  • A more secure key-switch to allow the lights to operate but not the main motor when the car is being shown at exhibits.
First, I drew out a dashboard and marked with a ruler and sharp nail where material should be cut and removed. Then, I took out the Dremil tool and started cutting out material. Even though the material is inert, it's a good idea to wear a respirator for this since quite a bit of plastic dust is generated.




Here, making sure the switches and Molex connectors are in the correct places before running the wires to them.







The shelf is held on by 4 screws. It holds the dashboard plus an extra shelf attached to it out of "L" brackets. The shelf has additional holes drilled into it so zip ties can hang off of it.






Next, I put on wire holders on the bottom of the fan so the new wire runs could neatly go along the top of the cowl if they were either going to the front, right or left on the car.






To make wiring neater, I decided to add some wire wrap around the bundles. Then, I attached the front headlight using a long bolt and plastic pipe for a spacer then ran it's wires through the cowl. On the plastic pipe spacer, I put three large rubber grommets on the outside of it. They don't add anything structural but the grommets look better than simply a short piece of plastic pipe. Finally, bullet connectors were crimped on & the pins pushed into the molex connectors.

What went well.
  • During construction, I've found a world of difference between using a cheap crimp tool and a better one. I bought one for $30. It's worth it. I've saved time and money by not needing to redo crimps.
  • The molex connector pin tool from Radio Shack at $7 is also kind of pricey but it allows fixing mistakes.
  • Using solder & heat-shrink rather than tap connectors makes wiring look MUCH better.
Not so well.
  • The K&S turn signal handle bar control has a special 9-pin connector on it. The connector is hard to find, hard to solder and it's expensive. If I was to do another vehicle, I would consider cutting it off and replacing it with a molex connector available at Radio Shack.
  • Dremil to cut the transparent dashboard from LEXANdoes work but doing so without scratching is tricky.
  • Kisan signal minder SR-1. is a luxury that's not really needed. After buying it, I thought of an idea to give 4-way flasher capability to the BugE without resorting to spending $99 for a special flasher box. I decided to mount an inexpensive slider switch in the dashboard to allow me to connect the right and left turn signal wires together. Once connected, instead of only the right pair or left pair working when the turn signals are activated, both pairs will flash in 4-way flasher mode. So, save your $99. Spend $3 for a slider switch instead

POST CONSTRUCTION OBSERVATION
I found a 12-pin connector between the cowl and the chassis is great for detaching the BugE when the cowl needed to be worked on. However, I found it would have been even better to use (3) 2-pin molex connectors instead of one big pin connector. That way, the connectors can pass through the small battery tray hole one at a time so the battery tray can be removed without cutting any wires. Also, the original side navigator lights needed to be taken off as well. Originally, my NYS-DOT caseworker said they were OK to leave on since non-dot lights are considered ornamental. Unfortunately, I didn't get that in writing. So, during my next correspondence, he insisted the sidelights also needed to be removed. To cover up the hole locations, I used amber reflectors.

Saturday, July 18, 2009

No tax credit for this BugE

If I could have registered the BugE in 2009, it might have qualified.

Link to the 2009 rules are HERE.

So for my BugE, here's how it might have worked....

Is the BugE a qualified vehicle? Yes! It is a three wheel vehicle propelled exclusively by electricity. It has 4-12V optima blue top batteries rated at 55A each. So, total rated battery pack capacity is 2.64KWH. That is just over the ARRA requirement of 2.5KWH.

Would I qualify for the tax credit based on time of purchase? Perhaps. Several kit components were purchased in 2008. However, the pile of parts I bought is not officially a "vehicle" until it gets a VIN. So, I would "buy" the VIN when I pay the sales tax on all the parts. At this time, the parts then magically turn into an official vehicle. If I get the VIN in 2009, I would qualify.

Now, the question is, how much would I have gotten back? The credit is 10% of the cost of the vehicle, up to $2500. The amount of course depends on the final total of the car components I claim. For NYS, I'm only obligated to value the car based on "major components". So, I'll only be counting components that actually went in the car rather than duplicated or upgraded components that were purchased, with intent to use, but were not not installed in the vehicle.

Now for the bad news. Thanks to the NY DMV delay, the BugE really existed as a vehicle only since it was registered (which unfortunately finally happened in 2010 rather than 2009). Meanwhile, the battery pack size requirement for 2010 increased to 5kwh. So, staying with the Lead-Acid pack put the BugE is under the 2010 kwh limit. Later purchasing an lithium upgrade, even if over 5kwh, isn't rewarded either since it's now a part for an existing car rather than a new car.  So, now you know how to avoid every single tax incentive for getting an electric vehicle!

Saturday, May 16, 2009

What's allowed, what's not.

I took the time to make a multiple guess Q&A survey, complete with a self-addressed stamped envelope to the caseworker from NY-DOT. I expected my envelope back in a few days. What I got instead was a phone call. So, I did the Q&A by phone and wrote down the answers. Since this was all done verbally, I really can't guarantee that these are the only modifications I need. However, I'm optimistic that my configuration is pretty close to what I need to pass.

VEHICLE WEIGHT CERTIFICATE
According to him, I can take the vehicle to be weighed at an official weighing station after getting a VIN rather than before I apply (So I can leave the weight blank on the form for now). The weight certificate is not needed when I apply for inspection, only when I register.

TIRES
The wheels and tires that come with the BugE are probably OK as long as the weight on each axle does not exceed the tire specifications. Also, there can be no markings that prohibit highway use (eg. some lawn tractors have markings on the tires that prohibit highway use). Tread pattern doesn't matter on motorcycles so the MC2 "slick" tires that come with the BugE kit should be OK.

LIGHTING
  • I DO need to install a primary sealed headlight with DOT motorcycle markings, Hi/Lo built in and it needs to be in the center (or two approved lights within 8 inches of each other). Currently, it cannot be LED and the reflector needs to be a certain minimum size. Both positions I proposed as per my understanding of NHTSA rules appear to be fine.
  • Targa blinkers will be changed to blinkers that have DOT documentation.
  • 4-way flashers and auto-turnoff circuit are NOT required (just nice to have).
  • Tail light needs to have DOT/SAE markings
  • Although powered reverse is a feature, I do not need reverse lights or audible notification.
  • Mirror lights that are not DOT approved are OK as long as they work and DOT approved blinkers are also installed as per NHTSA recommended locations
  • One red reflector (which can be integrated into the tail light) needs to be mounted on the rear of the vehicle. Other reflectors are nice but not required.
  • Turns out that a thumb throttle can be used instead of a twist throttle (probably because I'm controlling electricity rather than fuel)
  • Proposed interlock behavior and instrument display behavior I proposed based on NHTSA regulations were acceptable.
  • Dual navigator lights on the side can be operated on a separate switch if I decide to keep them. No interlock is required.
BRAKES
Technical Services was OK with both proposed brake configurations (either Blue Sky recommended layout or having a dual-brake on one handle for front, then second handle for rear wheel brake) I seemed to recall that there was a requirement for a parking brake for trikes. Specifically, that it needed to be an integrated brake and it would need to prevent movement on a 30 degree slope for 5 minutes. However, he insisted that a parking brake was not required. (I'm keeping mine installed anyway)

MIRRORS
Not covered by his department. However, I'm pretty sure using OEM replacement parts that would be for another approved vehicle would by their nature be OK to use.