Well, give up AC to help the world. In North Carolina summers are hot and humid. Currently I am considering keeping the AC and the power steering.

With that in mind I started noodling a layout to use the main drive with a belt configuration to provide 12v power for the regular vehicle systems and drive the A/C compressor and power steering pump.

Kevin You Are Crazy – Yea I know. The A/C system itself would decrease my range significantly.

But I thought about how I drive to and from work. It has regular small hills here in the peidmont 10 seconds of drive then I can coast down the other side. I thought if I can connect the compressor clutch to only activate when I am coasting then It might be possible to have some A/C with very limited power drain. I did some research and someone else actually applied the same idea successfully.

Also included in the illustration is another motor to use for regenerative breaking. Yea I know that there are better ways but this is what I thought about so I put the idea down.

Here is the layout: