Provided is an electric power steering apparatus including: a steering torque detection unit configured to detect a steering torque of a driver; a motor configured to assist a steering force of the driver; an estimated speed calculation unit configured to calculate an estimated speed, which is an estimated value of a rotation speed of the motor; an estimated speed correction unit configured to correct the estimated speed based on the steering torque; an estimated angle calculation unit configured to calculate an estimated angle of the motor by integrating the estimated speed after the correction; and an electric power supply unit configured to supply electric power to the motor based on the estimated angle, wherein the estimated speed correction unit is configured to correct the estimated speed when a determination signal, which is based on a value obtained by removing a frequency component of steering of the driver from a derivative of the steering torque, the steering torque, and the estimated speed have the same signs.
ELECTRIC POWER STEERING APPARATUS AND METHOD FOR CONTROLLING ELECTRIC POWER STEERING APPARATUS
ELEKTRISCHE SERVOLENKVORRICHTUNG UND VERFAHREN ZUR STEUERUNG EINER ELEKTRISCHEN SERVOLENKVORRICHTUNG
APPAREIL DE DIRECTION ASSISTÉE ÉLECTRIQUE ET PROCÉDÉ DE COMMANDE D'APPAREIL DE DIRECTION ASSISTÉE ÉLECTRIQUE
2020-12-30
Patent
Electronic Resource
English
ELECTRIC POWER STEERING APPARATUS AND METHOD FOR CONTROLLING ELECTRIC POWER STEERING APPARATUS
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