Patent Document ID: 20150207448
Application ID: 14592357
Patent Flag: 0

Claim One:
1. A controller for a motor generator, comprising: a battery; a step-up converter configured to step up an output voltage from the battery; an inverter configured to convert an output from the step-up converter into an alternating current; a motor generator driven by the alternating current from the inverter; an angle-of-rotation sensor configured to detect an angle of rotation of the motor generator; and a control unit configured to control the inverter in accordance with a target output of the motor generator and a result of detection of the angle-of-rotation sensor to control the alternating current that is to be supplied to the motor generator, and configured to control the step-up converter in accordance with the target output of the motor generator to control the output from the step-up converter, wherein, during operation of the motor generator, the control unit sets a voltage output from the step-up converter to be higher when learning of the point of origin of the angle-of-rotation sensor has yet to be completed, than when learning of the point of origin of the angle-of-rotation sensor has been completed.