Patent ID: 8365860

Claim:
A steering control apparatus comprising: an input shaft coupled to a steering member operated by a driver; an output shaft provided rotatably relative to the input shaft and forming a torque transfer path for transferring steering torque applied to the steering member to vehicle wheels; a variable gear ratio device including a gear mechanism and a first motor and configured to variably control a ratio between a rotation angle of the input shaft and a rotation angle of the output shaft, the gear mechanism being configured to transfer rotation of the input shaft to the output shaft, and the first motor being configured to drive the gear mechanism; a power steering device including a second motor and configured to assist steering operation of the driver on the steering member by torque generated by driving the second motor; a vibration torque acquisition part configured to acquire vibration torque, which is generated by vibration of the gear mechanism when the steering member is operated; a correction part configured to correct assist torque provided to assist the steering operation of the driver on the steering member based on the vibration torque acquired by the vibration torque acquisition part; and an operation control part configured to control the second motor to output a corrected assist torque determined by the correction part.