A motor control device includes a motor drive circuit and a microcomputer that controls the drive circuit. The microcomputer generates a control signal on the basis of duty command values Du, Dv, and Dw to control the drive circuit. The microcomputer includes a dead time compensation section 87 that corrects the duty command values Du, Dv, and Dw on the basis of dead time compensation values Ddu, Ddv, and Ddw. The dead time compensation section 87 includes a basic compensation value computation section 92 that computes a basic compensation value Dd as a fundamental value of the dead time compensation values Ddu, Ddv, and Ddw, and a filter section 93 that performs a filtering process corresponding to a low-pass filter on the basic compensation value Dd. The dead time compensation section 87 sets the dead time compensation values Ddu, Ddv, and Ddw on the basis of an output value ± from the filter section 93.
Motor control device and electric power steering device
Motorsteuerungsvorrichtung und elektrische Servolenkung
Dispositif de commande de moteur et système de direction assistée électrique
2019-01-02
Patent
Electronic Resource
English
IPC: | H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B62D MOTOR VEHICLES , Motorfahrzeuge / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen |
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