Motor control system
AssigneeToyota Jidosha Kabushiki Kaisha
InventorTaro Takahashi
Life of this patent
Estimating the term…
Abstract
A motor control system includes a motor, a rotational angle sensor that detects a rotational angle of a motor shaft of the motor, a torque sensor that detects shaft torsion torque between the motor shaft, and an output shaft fixed to a load member driven by the motor, and a motor controller that controls the motor. The motor controller estimates a rotational angle of the output shaft, based on the rotational angle of the motor shaft, the shaft torsion torque, and torsional rigidity obtained in advance with respect to a region between the motor shaft and the output shaft, and controls the motor, using the estimated rotational angle of the output shaft.
Claims4
A motor control system comprising:
- a motor;
- a rotational angle sensor that is configured to detects a rotational angle of a motor shaft of the motor;
- a torque sensor that is configured to detects a shaft torsion torque between the motor shaft, and an output shaft fixed to a load member driven by the motor;
- and
- a motor controller that is configured to controls the motor, wherein
- the motor controller is configured to estimates a rotational angle of the output shaft, based on the rotational angle of the motor shaft detected by the rotational angle sensor, the shaft torsion torque detected by the torque sensor, and a torsional rigidity obtained in advance with respect to a region between the motor shaft and the output shaft, and
- the motor controller is configured to controls the motor, using the rotational angle of the output shaft.
Dependencies are inferred from the claim text.