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Old 04-29-2014, 04:18 PM   #6514 (permalink)
thingstodo
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Launch Control

Quote:
Originally Posted by duncan View Post
On the subject of extra features

I would like - Launch Control!!!

I currently measure motor speed (magnetic pick-up on motor shaft)
I intend to measure the front wheel speed

The intention is to compare both speeds and then reduce current until the rear wheels are doing 110% of the front wheel speeds

(110% is my first guess for an optimum launch)

I was going to do this crudely
have found a circuit that compares speeds - I now need to be able to reduce the throttle demand if the speed difference is too great
My first cut at a solution that is not going to bog down the motor controller would be to have 'launch control' done by another and separate controller.

Accelerator, cruise buttons, etc into something like a GEVCU and an analog output from the GEVCU to the motor controller.

This is flexible and enables many additional features that have not been discussed (or thought of) as yet.

Too bad it's an expensive solution ...
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