Posted by Bruce Richmond on August 17, 2009, 11:36 pm
> The battery. In cold weather, they don't work well. In the climate
> of places like North America in Winter, they may not work at all.
> & BTW, how do you heat them
A little coal stove down by your feet? Propane might be more
practical.
> or provide A/C?
Roll the window down like I do, pussy ;)
> It's gonna be a Summer car only!
Posted by Gordon on August 18, 2009, 12:07 am
ac6a6d883f7d@f37g2000yqn.googlegroups.com:
> The battery. In cold weather, they don't work well. In the climate
> of places like North America in Winter, they may not work at all.
> & BTW, how do you heat them or provide A/C?
> It's gonna be a Summer car only!
When the battery is charging it will generate plenty of heat.
The battery will be warm and ready to go in the morning.
The same self heating of the battery can be used to prewarm
the cabin. After that, scavenge heat off the motor controler.
As for A/C, use a DC motor to turn the compressor. That's
how they did it on the EV-1.
Posted by harry on August 19, 2009, 8:40 pm
> ac6a6d883...@f37g2000yqn.googlegroups.com:
> > The battery. In cold weather, they don't work well. In the climate
> > of places like North America in Winter, they may not work at all.
> > & BTW, how do you heat them or provide A/C?
> > It's gonna be a Summer car only!
> When the battery is charging it will generate plenty of heat.
> The battery will be warm and ready to go in the morning.
> The same self heating of the battery can be used to prewarm
> the cabin. After that, scavenge heat off the motor controler.
> As for A/C, use a DC motor to turn the compressor. That's
> how they did it on the EV-1.
& what happens when you park out somewhere? There is virtually no
heat from a modern motor controller. Which is why it is modern.
Use a DC motor & lose 20 miles range.
That is the point. There is no surplus or throwaway energy in an
electric car. The only chance is, as someone remarked, a little
propane heater.
Posted by Jim Wilkins on August 20, 2009, 12:49 am
> & what happens when you park out somewhere? There is virtually no
> heat from a modern motor controller. Which is why it is modern.
> Use a DC motor & lose 20 miles range.
> That is the point. There is no surplus or throwaway energy in an
> electric car. The only chance is, as someone remarked, a little
> propane heater.
Or insulation, and a thermostatic valve to divert coolant from the
small motor-generator into the battery pack. Hit the remote starter
when you wake up. The motor could also spin an A/C pump.
If I had the funding it would be a pickup truck with an air compressor
and arc welding output included.
jsw
Posted by harry on August 20, 2009, 6:20 pm
> > & what happens when you park out somewhere? There is virtually no
> > heat from a modern motor controller. Which is why it is modern.
> > Use a DC motor & lose 20 miles range.
> > That is the point. There is no surplus or throwaway energy in an
> > electric car. The only chance is, as someone remarked, a little
> > propane heater.
> Or insulation, and a thermostatic valve to divert coolant from the
> small motor-generator into the battery pack. Hit the remote starter
> when you wake up. The motor could also spin an A/C pump.
> If I had the funding it would be a pickup truck with an air compressor
> and arc welding output included.
> jsw
What small motor generator is this?
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> of places like North America in Winter, they may not work at all.
> & BTW, how do you heat them