Besides the property of the asynchronous motor,the taper asynchronous motor can daff the detent easily,because magnetic force is generated when stator three-phrase windings connect to the electricity.
For EVs, pressing on the accelerator changes the frequency of current driven into the wires of the stator, in turn increasing the rate at which the rotor spins.
DeepDrive, a Munich-based company that makes IWMs for BMW and others, has a design that uses two rotors, one that revolves outside the stator and another inside, to increase the motor's efficiency.
The pump is a brushless DC motor, constructed from a PCB, a control chip, and a stator on the dry side, a barrier in the middle, and then the permanent magnet rotor and impeller on the liquid side.