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Search took 0.02 seconds. Search: Posts Made By: TomEV
Forum: Fossil Fuel Free 12-08-2012, 09:24 AM
Replies: 5
Views: 3,116
Posted By TomEV
Reviving Dead Gauges

When I got my newest EV, it only had one operational gauge in the instrument panel - the speedometer. The other gauges - tachometer, fuel gauge, and temperature gauge - just sat there, pegged to the...
Forum: For Sale 06-04-2012, 10:24 PM
Replies: 2
Views: 5,743
Posted By TomEV
1976 Citicar - Bay Area, California $1900

My electric 1976 Citicar - affectionately known as the 'Cheese Wedge' - is for sale. (see avatar picture)

The Citicar has worked as a daily driver for my 4.5 mile commute for several years, but...
Forum: Fossil Fuel Free 05-02-2012, 12:07 AM
Replies: 10
Views: 4,352
Posted By TomEV
I installed the J1772 inlet and control board in...

I installed the J1772 inlet and control board in the Citicar tonight - Works as advertised!

Perhaps the first time a Citicar has charged up using a J1772 charging station... It will be nice to be...
Forum: Fossil Fuel Free 04-04-2012, 10:51 PM
Replies: 10
Views: 4,352
Posted By TomEV
J1772 Upgrade Parts Have Arrived!

I received the J1772 inlet and vehicle-side control board today!
http://pluginwithtom.com/images/J1772%20Inlet%20and%20Board.jpg
I performed a benchtop test with a J1772 charging station, but...
Forum: Fossil Fuel Free 04-03-2012, 03:18 PM
Replies: 10
Views: 4,352
Posted By TomEV
AFAIK, you have to send the charger back to...

AFAIK, you have to send the charger back to Electric Conversions (ElCon) in Sacramento. They'll need to know what brand of lithium cells you have, if you use a BMS, and how many cells/size you are...
Forum: Fossil Fuel Free 01-13-2012, 11:08 PM
Replies: 70
Views: 17,331
Posted By TomEV
Not sure if this answers your question, but I...

Not sure if this answers your question, but I just tested the spare 6.7" GE 3.5 HP series motor I have. Here are the results:

Field resistance: .22 ohms
Armature resistance: .34 ohms (varies as...
Forum: Fossil Fuel Free 01-13-2012, 10:16 PM
Replies: 23
Views: 7,378
Posted By TomEV
Although the Red Top brush material I ordered for...

Although the Red Top brush material I ordered for the GE 3.5 and 6HP motors will handle 160v, due to the small diameter of the commutator and relatively narrow comm bars, these motors will probably...
Forum: Fossil Fuel Free 01-12-2012, 10:24 PM
Replies: 70
Views: 17,331
Posted By TomEV
I think your decision to go for something more...

I think your decision to go for something more than a 7245 is a good idea. I have a 7245, and at 1300 pounds of vehicle weight it is fun, but with anything heavier it would probably be sluggish.
...
Forum: Fossil Fuel Free 01-12-2012, 09:59 PM
Replies: 23
Views: 7,378
Posted By TomEV
Citicar - from 48v to 64v

I recently upgraded the voltage in the Citicar from 48v (stock) to 64 volts. It is interesting the difference a few volts make!

Acceleration has improved greatly. It used to accelerate OK up to...
Forum: Fossil Fuel Free 01-12-2012, 09:47 PM
Replies: 10
Views: 4,352
Posted By TomEV
So far, the ElCon has been very good - and much...

So far, the ElCon has been very good - and much faster than I would have expected. And very quiet! With the ferro resonant charger, it would only put out the full 1.4 kW for a while, making a very...
Forum: Fossil Fuel Free 12-31-2011, 11:05 AM
Replies: 10
Views: 4,352
Posted By TomEV
ElCon Charger

Part of doing the upgrade to 64v in the Citicar was to source a new charger. I found that the ElCon PFC2500 can be programmed for 64v nominal, and is capable of using both 120v and 240v as input...
Forum: Fossil Fuel Free 09-03-2011, 05:16 AM
Replies: 0
Views: 840
Posted By TomEV
September 24 EV Rally in Palo Alto

I've posted the information related to the Silicon Vally EV rally in the 'events and meetups' folder - It is a great show, and hopefully you can be there! September 24th in Palo Alto, California.
Forum: Fossil Fuel Free 04-16-2011, 11:24 AM
Replies: 9
Views: 2,988
Posted By TomEV
Congrats on making the controller! What's the...

Congrats on making the controller! What's the next step in making it handle more amps?
Forum: Fossil Fuel Free 12-17-2010, 03:20 PM
Replies: 7
Views: 2,998
Posted By TomEV
Alltrax Monitor - Palm V

I have an Alltrax controller in the Citicar. In order to monitor amps, volts and the like, you can connect it to a laptop computer. Problem is, they are generally a bit awkward to look at when...
Forum: Fossil Fuel Free 12-12-2010, 08:37 AM
Replies: 6
Views: 1,568
Posted By TomEV
Perhaps the next articles in the series - ...

Perhaps the next articles in the series -

*Irresponsible Family Cooks Christmas Dinner On Electric Stove - Browns Out Neighborhood (Stove + Oven - 7,200 watts)
..."We hadn't had a hot meal for...
Forum: Fossil Fuel Free 12-02-2010, 10:33 PM
Replies: 3
Views: 1,120
Posted By TomEV
Winter EV Range + Aging Batteries

One of the local EV club members has operated a small electric vehicle (personal mobility vehicle on steroids...) for a couple of years. Over time, he has kept records on battery performance, daily...
Forum: Hybrids 11-28-2010, 10:52 AM
Replies: 35
Views: 6,875
Posted By TomEV
In a standard 2004 - 2009 Prius, the ICE turns on...

In a standard 2004 - 2009 Prius, the ICE turns on at around 34 MPH. If the computer in a Prius is programmed correctly, the Prius can go about 52 MPH on electric power. It is limited to that speed...
Forum: Fossil Fuel Free 11-14-2010, 09:03 PM
Replies: 25
Views: 5,557
Posted By TomEV
The previous owner's estimate of 15 miles is...

The previous owner's estimate of 15 miles is probably valid for new batteries under good conditions (warm day, 40 MPH, no hills, etc.)

If the car hasn't been used for several months, it is...
Forum: Fossil Fuel Free 11-05-2010, 09:17 AM
Replies: 22
Views: 5,161
Posted By TomEV
I measured the resistance of the Nichrome a while...

I measured the resistance of the Nichrome a while back, and if memory serves it is about .09 ohms. This gives about 10% increase in speed compared to non-FW. Some people use a short length of small...
Forum: Fossil Fuel Free 04-14-2010, 11:09 PM
Replies: 16
Views: 2,778
Posted By TomEV
While this kit is probably not under $3,000, here...

While this kit is probably not under $3,000, here is an idea for you - motor as part of the rear drive shaft.

S10 EMIS Project (http://www.go-ev.com/S10-blazer.html)

The right hand picture in...
Forum: Fossil Fuel Free 09-24-2009, 10:40 PM
Replies: 12
Views: 5,624
Posted By TomEV
Overall numbers for the week - (combined from...

Overall numbers for the week - (combined from previous posts, plus two new)

5 mile drive - 1.16 kwh - 232 wh/mile
7 mile drive - 1.58 kwh - 226 wh/mile
9 mile drive - 2.01 kwh - 223 wh/mile
10...
Forum: Fossil Fuel Free 09-19-2009, 05:54 AM
Replies: 12
Views: 5,624
Posted By TomEV
Transaxle Oil

After reading this thread -
http://ecomodder.com/forum/showthread.php/effect-gear-oil-viscosity-transmission-efficiency-metro-owners-128.html
I decided to try a different type of oil in my Citicar...
Forum: Fossil Fuel Free 09-11-2009, 01:40 AM
Replies: 2
Views: 1,284
Posted By TomEV
45 amps for 25 minutes is roughly 33.33 amp/hr...

45 amps for 25 minutes is roughly 33.33 amp/hr (about 1/2 of what you should have in a 75 ah battery.)

45 amps for 17 minutes is roughly 22.66 amp/hr (about 1/3 of what you should have.)

While...
Forum: Fossil Fuel Free 07-27-2009, 08:06 PM
Replies: 1
Views: 1,970
Posted By TomEV
Yep - the Kelly controller uses a 0 - 5 volt (not...

Yep - the Kelly controller uses a 0 - 5 volt (not ohms) throttle control. A PB6 is zero ohms at stop (will pass 5v) and 5k or so at full throttle (probably less than 1/2 volt - depends on how much...
Showing results 1 to 24 of 24

 
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