A constant detecting apparatus 15 comprising a detecting unit 26 and a calculating unit 27. The detecting unit 26 is structured comprising a rotation sensor 41, a torque sensor 42, a position sensor 43, a rotor temperature sensor 44, a winding temperature ...

A control device for a plurality of rotating electrical machines has a single current control device with an inverter (9), gate driver (10), and a motor controller (11), which supplies a control current to each rotating electrical machine (1, 5) allowing r...

The technique of the present invention sets a torque voltage to be applied to a motor in response to a required torque and adjusts the duty of an inverter to ensure application of the torque voltage according to the observed voltage of a battery. In a moto...

An inverter (23) generates a composite current comprising an electrical current for a first rotor (4) and an electrical current for a second rotor (3). A microprocessor (22) controls the inverter (23) so that the average value of the composite current is s...

A device for high efficiency motor control includes an induction motor and a controller. The induction motor generates a motor torque and has a given rotor resistance and magnetising inductance at a specific temperature. The controller is coupled to and co...

A digital calculation apparatus (4) including a position-detection means (14) for detecting the magnetic pole position, based on the detected current difference values of the synchronous motor (1) in a two-phase short-circuit state, takes in current flowin...