CHARACTERISTIC CHANGE DETECTION DEVICE FOR STEERING TRANSMISSION SYSTEM

摘要

A steering torque sensor detects steering torque of a steering wheel. A steering angle sensor detects a steering angle of the steering wheel. An abnormality determining unit determines that a characteristic change is caused in the steering transmission system, when it is determined that the steering torque is smaller than or equal to a predetermined value and when the number of times when a difference between target vehicle behavior that is calculated from the steering angle and actual vehicle behavior is larger than or equal to a reference value is larger than or equal to a predetermined number of times during one steering.

主权项

1. A characteristic change detection device for steering transmission system, comprising:
a steering torque sensor that detects steering torque of a steering wheel; a steering angle sensor that detects a steering angle of the steering wheel; and an abnormality determining unit that determines that a characteristic change is caused in a steering transmission system, when the steering torque is smaller than or equal to a predetermined value and when the number of times when a difference between target vehicle behavior that is calculated from the steering angle and actual vehicle behavior is larger than or equal to a reference value is larger than or equal to a predetermined number of times during a predetermined period of time.