Re: [Amc-list] ELECTRO-RAMBLER =revisited=

[Wrambler242@xxxxxxxxxxx]

The other problem is, What do you do with the enrgy from regenerative braking when the batteries are charged? You still need brakes, so you need some way for the switch over to conventional braking to occur. Regenerative braking IMHO is not for the DIY.

--
Mark Price
Morgantown, WV
1969 AMC Rambler, 4.0L, EFI, T-5

 -------------- Original message ----------------------
From: Tom Jennings <tomj@xxxxxxx>
> On Sat, 5 May 2007, Sandwich Maker wrote:
> 
> > " A: You are talking about regenerative braking through the electric motor? I
> > " was thinking a small electric motor at each wheel for regenerating the power
> > " and stopping.
> >
> > i think you might need more than -small- motors for anything but
> > gentle stops.  they won't be able to regeneratively brake you any
> > faster than they could accelerate you.
> 
> The control and management of regenerative braking is extremely
> complex. Not only managing the energy generated but managing
> feel and switchover and balance between accelleration, no-load
> cruise, light braking, hard braking, panic stops, etc. You
> can go from any of those states to any other with zero notice
> and human safety depends on it working right absolutely every
> single time. Plus there's the need for fallback/failsafes,
> and the need to integrate all that functionality between a
> brake pedal and a gas pedal (assuming you want to do that).
> 
> THAT is the part of the Prius etc hybrid setups that I assume
> took the most effort, and "all" they accomplished is light
> regeneration on partial braking (not to make light of that
> substantial accomplishment).
> 
> It would be really really hard to do at home.
> 
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