An upper Holzer sensor for AC motors?
If you say is the kind of motor on the electric vehicle, it is actually a AC motor. The DC input to the controller, the controller output to the motor 3 lines is ac. I understand the questions you want to ask me, this explanation does not solve your problem.
A temperature sensor can monitor the winding temperature and avoid firing coils. There are proximity switches or other inductive switches that monitor the revolutions or achieve blocking protection.
An ordinary induction induction motor does not require an ordinary Holzer sensor. If used to monitor the speed of the motor, consider.
There is no protection inside the motor of the whole country.
