Drewcifer wrote:
Could you use arduino programming with the zolox or similar sensor to
archive what the Zilla hairball achieves??
Possibly; but it's not really a "computer" kind of problem.
Fundamentally, you have to decide *when* you want to shift between
series and parallel. That can be a human decision (when you flip a
switch), or an automatic one (based on some criteria you have to define;
like "above 40 mph" or "when I floor the accelerator pedal and the
controller is not in current limit").
When you want to shift, the sequence of events is something like:
1. Release the accelerator pedal, so the motors drop to zero current.
2. Switch the contactors from series to parallel (or parallel to
series).
3. Re-apply the accelerator pedal.
Safeguards should also be included, so all h*ll won't break loose if
some contactor is stuck on or off. Improper operation can result in
unstoppable full-power acceleration, going into reverse when you are at
a high forward speed, shorting the motor (which would essentially lock
the tires), etc.
--
If we knew what we were doing, it wouldn't be called research, would it?
-- Albert Einstein
--
Lee A. Hart, http://www.sunrise-ev.com/LeesEVs.htm
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