Motor control angle sensor, motor control system, and control method for motor control angle sensor

A motor control system comprising:

• a motor;
• a sensor that outputs a signal according to driving of the motor;
• an arithmetic processing unit;
• a motion history temporary memory unit;
• a motion history storage unit;
• and
• a control apparatus that controls the driving of the motor, wherein
• the arithmetic processing unit generates position information data containing a position of the motor acquired based on the signal output from the sensor and a time when the position is acquired, repeats processing of storing the generated position information data in the motion history temporary memory unit, and, when an abnormality is sensed or a signal reporting an abnormality is received from the control apparatus, stores the position information data stored in the motion history temporary memory unit in the motion history storage unit.

A control method for a motor control angle sensor having

• a motor,
• a sensor that outputs a signal according to driving of the motor,
• an arithmetic processing unit,
• a motion history temporary memory unit,
• a motion history storage unit, and
• a control apparatus that controls the driving of the motor,
• the method comprising:
• generating position information data containing a position of the motor acquired based on the signal output from the sensor and a time when the position is acquired at each time when receiving a request signal from the control apparatus;
• repeating processing of storing the generated position information data in the motion history temporary memory unit;
• and,
• when an abnormality is sensed or a signal reporting an abnormality is received from the control apparatus, storing the position information data stored in the motion history temporary memory unit in the motion history storage unit by the arithmetic processing unit.