Electric car efficiencies

[NeilBlanchard]

We have the specifics on several other EV's -- the SIM-LEI: http://ecomodder.com/forum/showthrea...kph-16672.html

The DOD of the Leaf battery pack is 95% and the Kolibri is 97%. They are quite stable with deep discharges. The FVT eVaro uses EiG cells that are fine at 10C.

It is the efficiency of the chassis that limits the range of an EV, not the battery per se. Compare the Leaf and the SIM-LEI: the Leaf Cd is 0.28 vs 0.19 of the SIM-LEI, and this translates to 73 miles range vs about 200+ miles; on very similar pack capacity.

[user removed]

2003 Honda Civic Hybrid White

Not worth much with a bad battery. 2 years younger than the average car on the road today. 4 years younger than my Maxima.

regards
Mech

[jamesqf]

Originally Posted by Ryland

It's even easier with an electric car, you set the timer to preheat your seat and when you come out to the car your seat and steering wheel are warm, windshield is defrosted and less energy was used then a gasoline cars block heater.

See, I KNEW someone would figure out how to do that.

[jamesqf]

Originally Posted by Old Mechanic

2003 Honda Civic Hybrid White

Not worth much with a bad battery. 2 years younger than the average car on the road today. 4 years younger than my Maxima.

regards
Mech

If anyone is interested, I just happen to have a Honda Civic battery pack in the garage, which I would sell cheap. Bought it a few years ago, hoping the battery sticks would interchange with the Insight, but they don't. Insight has sticks of 6 cells, this has sticks of 12 assembled into 2-row packages.

[NeilBlanchard]

An idea that I'm considering for heat in CarBEN EV5 is to use what motorcyclists use: an electric vest plugged in. I'll look into the power they use, but since it heats your torso directly, it has to be lower power consumption than even heated seats.

[jamesqf]

Originally Posted by NeilBlanchard

...since it heats your torso directly...

But a major purpose (for me, the main one, but I like cold) of cabin heating in the winter is to keep the windows clear of frost and condensation.

[rmay635703]

Originally Posted by Ladogaboy

I, for one, couldn't do it. In fact, the only time owning a full electric car was ever feasible was when I lived in/rented a home, and I've lived in apartments/dorms for nearly half of my life at this point (totaling probably a dozen different apartments). The apartments aren't wired for it, and I see no interest from the landlords. It might be another one of those chicken and egg scenarios.

??? I lived in an apartment that was designed in 1902, single level motel like cinder block place and I had no outlet outside but I could park nearish the front door of my apartment. By using cracks in the sidewalk and 2 minutes of ingenuity I was miraculously able to charge my car for 2 years, asked and the landlord didn't care after finding out the monthly cost.

2nd landlord I put in a special kind of lightbulb adapter in the socket in front of my apartment and replaced the 200 watt flood with an LED and miraculously I again was able to charge my EV. Albeit I was limited to 10 amps which I could select on my charger but it worked.

Many landlords I have encountered truly don't care either way (they won't help or hinder), in fact they are more than happy to allow you to do anything you want, so long as the place is left in better shape then when you got there and you don't damage anything.

I think you either aren't asking or didn't ask the right question.

By the type of responses

[NeilBlanchard]

For efficient defrosting, the glass can be heat directly with electricity. Ford and others did this, with a very thin (sputtered) gold coating on the glass, apply electricity and it clears mist or frost within a few seconds.

We are so used to a ICE with all that waste heat -- you can heat the entire inside of the car easily. But heating the air to heat the glass and powering the fan, as well -- is just about the worst way to do it in an electric car.

One of the things I'm doing with the CarBEN EV5 is thermally *insulating* the entire car (foam core composite sandwich) and the side windows will be double glazed, if possible. This will make the inside more comfortable in all weather.

[rmay635703]

Originally Posted by NeilBlanchard

For efficient defrosting, the glass can be heat directly with electricity. Ford and others did this, with a very thin (sputtered) gold coating on the glass, apply electricity and it clears mist or frost within a few seconds.

We are so used to a ICE with all that waste heat -- you can heat the entire inside of the car easily. But heating the air to heat the glass and powering the fan, as well -- is just about the worst way to do it in an electric car.

One of the things I'm doing with the CarBEN EV5 is thermally *insulating* the entire car (foam core composite sandwich) and the side windows will be double glazed, if possible. This will make the inside more comfortable in all weather.

Insulation works wonders, just changing the door gaskets on my commuta made it much toastier.

Also my father used to have a car that looked like it had rear window defroster lines around the outside edge of the front window, I've often wondered why this cheap solution isn't used?

Afterall a single line can clear 4-6" in time, it would certainly "assist" and accelerate defrosting the front window.

[drmiller100]

Originally Posted by NeilBlanchard

An idea that I'm considering for heat in CarBEN EV5 is to use what motorcyclists use: an electric vest plugged in. I'll look into the power they use, but since it heats your torso directly, it has to be lower power consumption than even heated seats.

when do you start building your car?