Patent ID: 8307927
Filing Date: 2012-11-13
Classification: B60K,B60L,B60W,H02P,Y02T

Abstract:
1. A rotating electrical machine control system comprising: a DC power supply; a rotating electrical machine; an inverter provided between the DC power supply and the rotating electrical machine to control current flowing in the rotating electrical machine; and a control device that: the inverter is operated based on the rotational speed and the requested torque determined by the control device, the control device changes a limit of the torque in accordance with an inverter voltage, which is a voltage applied to a frequency conversion portion provided in the inverter, the control device executes torque limit control that limits the torque of the rotating electrical machine when the requested torque is higher than a continuously operable torque determined in accordance with the inverter voltage, and prevents an increase in temperature of the frequency conversion portion even when the rotating electrical machine is operated continuously, and the rotating electrical machine is operated in accordance with the requested torque when the requested torque is lower than the continuously operable torque.