Four-wheel steering gear for vehicles

Abstract

Abstract PURPOSE:To make a steering ratio between a front-wheel steering angle and a rear-wheel steering angle variable with a simple structure, by interconnecting a front cylinder, whose volume is varied in interlock with a front steering system, to a rear cylinder steering rear wheels in an oiltight manner. CONSTITUTION:A control unit 24 actuates and controls a second actuator 27 when a car speed signal SS exists in a dead slow range or a low speed range, making a selector valve 17 select from a forward position to a reverse position. When the car speed signal SS exists in a high speed range, the control unit actuates and controls a first solenoid actuator 23 according to a steering angle signal SA, making a piston 20 operate, whereby volume lying between cylinders 7 and 14 is altered, thus a steering ratio is made into variable speed.

Inventors

• 👤 Hirotaka Kanazawa
• 👤 金澤　啓隆
• 👤 Teruhiko Takatani
• 👤 高谷　輝彦
• 👤 Shigeki Furuya
• 👤 古谷　茂樹
• 👤 Isamu Chikuma
• 👤 竹間　勇
• 👤 Satoru Shimada
• 👤 悟 島田
• 👤 Hiroshi Eda
• 👤 広 恵田

Bibliographic Details