Manual torque vectoring

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Bratitude
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Manual torque vectoring

Post by Bratitude »

modern awd cars use a variety of schemes for power distribution to all 4 wheels.
Multiple diffs, clutch packs, viscous couplings, dccd, hydro e-brakes, ebs...



now I’m interested in the concept of eventually running a duel motor set up, front and rear.

Having manual control over the torque of each motor would open up some very fun vehicle handling characteristics.
such as being able to scale torque back on the front motor, producing a rwd biases. And vice versa.


mechanically I’m thinking of having a “torque shifter” in the centre console, ether two leavers side by side or one central leaver.

In the case of one leaver, the central position would have both front and rear motors mapped to 100% torque value. Pulling back from centre, would decrease the front motors torque, with no effect on the torque of the rear motor.
vice versa.


Now if I understand FOC correctly (being not much) would we simply map the idcmax value to the leaver position?

Regen would play a huge effect on handling in the case, and I would think for staters we would have the motors free wheel or maintain a fairly neutral bias between them.
https://bratindustries.net/ leaf motor couplers, adapter plates, custom drive train components
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Re: Manual torque vectoring

Post by johu »

For now I'd suggest you alter throtcur to your lever. It specifies the motor current per % of throttle travel. Will change this to iacmax soon but for now throtcur is your value.
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