A motor controller that controls operation of a motor including two windings includes a calculator to compute a current instruction value to drive the motor, a first motor driver to drive the motor by supplying a first current to one of the windings based on the current instruction value computed by the calculator, a second motor driver to drive the motor by supplying a second current to the other of the windings based on the current instruction value computed by the calculator, a first current detector to detect the first current supplied to the motor from the first motor driver, and a second current detector to detect the second current supplied to the motor from the second motor driver. To determine an abnormality of at least one of the first current detector and the second current detector, the calculator supplies a first forced current to the first motor driver, and supplies a second forced current in opposite phase of the first forced current to the second motor driver.
MOTOR CONTROLLER AND ELECTRIC POWER STEERING DEVICE
2019-10-31
Patent
Electronic Resource
English
MOTOR CONTROLLER, ELECTRIC POWER STEERING DEVICE AND VEHICLE
European Patent Office | 2018
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