Quote:
Originally posted by Btman
The speed control rapidly disconnects power to the motor, shorts the motor terminals, and the motor acts as a generator. While its acting as a generator in this mode, it dissipates power and acts like a brake since the terminals are shorted.
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You've got it mostly correct. The motor is being used as a generator, but it is not trying to generate electricity into a short circuit. The power is being fed back into the batteries, and depending on how fast the motor is spinning, and how much braking you are applying, the load on the motor is either increased or decreased. They call this regenerative braking.
The solution to the locking rear tires is to roll on the brakes gradually. As the motor slows, it will generate less braking force with the same trigger application.
The easier solution is to go AWD, so that the braking is distributed amoing all four wheels, like a real car, and the front wheels work better for braking anyway due to weight transfer. With AWD, the car will stop perfectly straight and quite quickly from top speed.