A motor control device (a motor driver) for controlling, by a duty control, a current supplied to a motor includes a driving controller, an off controller, and a voltage acquiring section (an A/D conversion processor, a sampling section). The driving controller performs on/off control of the current supplied to the motor with a first period. The off controller performs off control for the motor with a second period separately from the on/off control performed by the driving controller. The second period is longer than the first period. The voltage acquiring section acquires a voltage between terminals of the motor during a time period in which the off control is performed by the off controller.
Motor control device and vehicle brake hydraulic pressure control apparatus
2015-07-07
Patent
Electronic Resource
English
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern |
Motor control device and vehicle brake hydraulic pressure control apparatus
European Patent Office | 2016
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