초록 ▼

Disclosed is a motor control apparatus which can detect an abnormality in a feedback control loop and can suppress a change in the behavior of a vehicle that does not meet a driver's demand when the abnormality occurs. A motor control apparatus for a hybrid vehicle with an engine for outputting driv

Disclosed is a motor control apparatus which can detect an abnormality in a feedback control loop and can suppress a change in the behavior of a vehicle that does not meet a driver's demand when the abnormality occurs. A motor control apparatus for a hybrid vehicle with an engine for outputting driving force of the vehicle, a motor for generating driving force for assisting the output from the engine and a battery for supplying power to the motor and for storing electric energy regenerated by the motor acting as a generator when the driving force is not required, is provided with: a detector for detecting supplied power to the motor or supplied current to the motor; a feedback controller for performing feedback control to keep the supplied power or the supplied current at a target value based on the detection result from the detector; an abnormality detector for detecting an abnormality in the detector; and an abnormality processing device for fixing supplied power or supplied current to the motor to a predetermined value by reducing a gain in the feedback control or stopping the feedback control until a predetermined time elapses since detection of an abnormality in the detector, and stopping controlling the motor after the predetermined time elapses since detection of the abnormality.

대표청구항 ▼

1. A motor control apparatus for a hybrid vehicle with an engine for outputting driving force of the vehicle, a motor for generating driving force for assisting the output from said engine, a battery for supplying power to said motor and for storing electric energy regenerated by said motor acting a

1. A motor control apparatus for a hybrid vehicle with an engine for outputting driving force of the vehicle, a motor for generating driving force for assisting the output from said engine, a battery for supplying power to said motor and for storing electric energy regenerated by said motor acting as a generator when said driving force is not required, and a power drive unit for setting said supplied power to said motor or supplied current to said motor in accordance with a power instruction value or a current instruction value, comprising:a detector for detecting said supplied power to said motor or said supplied current to said motor; a feedback controller for performing feedback control to keep said supplied power or said supplied current at a target value based on the detection result from said detector, and for computing said power instruction value or said current instruction value supplied to said power drive unit; an abnormality detector for detecting an abnormality in said detector; and an abnormality processing device for instructing said feedback controller to fix said supplied power or said supplied current to said motor to a predetermined value by reducing a gain in said feedback control or stopping said feedback control until a predetermined time elapses since detection of said abnormality in said detector, and to stop controlling said motor after said predetermined time elapses since detection of said abnormality.