Development of Four Wheel Steering System Using Yaw Rate Feedback Control Toyota Motor Corporation

Format:

Conference/Event

Author/Creator:

Satō, Hiroki, author.

Conference Name:

Passenger Car Conference & Exposition (1991-09-16 : Nashville, Tennessee, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1991

Summary:

Toyota has succeeded in developing for mass production the active four-wheel steering(4WS) system using yaw rate feedback and steering angle feedforward control. The active 4WS system consists of a group of various sensors, including the newly developed yaw rate sensor, ECU, a rear wheel steering actuator that employs a stepping motor and hydraulic valve, and other hydraulic elements, which actively control the steering angle of the rear wheels.The new system ensures a good response and a high level of stabililty for quick steering wen during a high-speed drive. When the vehicle deflects due to a sudden side wind, road surface disturbance, or abrupt braking, steering is automatically corrected through the rear wheels to significantly improve forward stability.In addition, the! system prwides improved performance in making small radius turns because the rear wheels are steering up to five degrees when the front wheels are turned to a large angle. Also,improved vehicle maneuverability at low speed is obtained

Notes:

Vendor supplied data

Publisher Number:

911922

Access Restriction:

Restricted for use by site license