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MOTOR CONTROL SYSTEM HAVING REDUNDANT ELECTRIC CONTROL UNIT
MOTOR CONTROL SYSTEM HAVING REDUNDANT ELECTRIC CONTROL UNIT
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机译:电机控制系统具有冗余电控单元
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摘要
A motor control system comprises: a motor; power sources; electric control units (ECUs) connected with the motor, each of ECUs comprising an inverter connected with a respective power source; and a controller monitoring whether an abnormality is detected in a voltage supplied to ECU(s). When the abnormality is detected in the voltage supplied to non-active ECU, the controller isolates current of active ECU to an inverter of active ECU to prevent high voltage spike caused by uncontrolled current flowing from active ECU to non-active ECU having the abnormality, and after the current of active ECU is isolated, electrically disconnects non-active ECU from active ECU and/or the motor. When the abnormality is detected in the voltage supplied to active ECU, the controller electrically disconnects active ECU from non-active ECU and/or the motor; and after active ECU having the abnormality is disconnected from non-active ECU and/or the motor, activates non-active ECU.
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