Toyota Jidosha Kabushiki Kaisha

Yuto Owaki

Yoshiaki Tsuchiya

Tetsuya Morino

A steering system includes a controller configured to: execute a normal control to control a front-wheel steering device or a rear-wheel steering device based on a target steering angle when a steering-related frequency is determined to fall outside a resonance frequency band; and execute a limiting control when the steering-related frequency is determined to fall within the resonance frequency band. In the limiting control, the controller controls the front-wheel or rear-wheel steering device such that (i) an actual steering angle is constant at a predetermined value, (ii) an absolute value of the actual steering angle gradually decreases from a specific value, (iii) a frequency of the actual steering angle falls outside the resonance frequency band, or (iv) the absolute value of the actual steering angle is less than an absolute value of the latest value of a target extreme value that is an extreme value of the target steering angle.

Growing community of inventors

Susono, Japan

Yuto Owaki