To provide drive controller and control method for an electric motor including plural energization systems composed of an inverter and coils corresponding to plural phases. The controller includes: a current detecting unit for detecting currents between the coils and output points of the inverter or between the coils and a connection point between the coils; an inverter setting unit for controlling an inverter of the energization system involving abnormal energization into a predetermined condition; a torque detecting unit for detecting a torque generated in the energization system involving the abnormal energization based on a current in the energization system, which is detected by the current detecting unit; and a control unit for controlling a normal inverter based on the torque detected by the torque detecting unit. This configuration enhances the performance of controlling the electric motor in case a braking torque is generated due to abnormal energization.
Drive controller and drive control method for electric motor
2018-10-09
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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B62D MOTOR VEHICLES , Motorfahrzeuge / H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen |
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