Suspension for vehicle

Abstract

Abstract PURPOSE:To make optimal control over a wide range by constructing a flow control valve with a high speed small flow control valve and a low speed large flow control valve arranged in parallel. CONSTITUTION:A changeover valve 36, an accumulator 38, a high speed small flow control valve 40 and a low speed large flow control valve 42 arranged in parallel each other are arranged in a working oil supply path 34 for a cylinder 2. A reservoir tank 32 is coupled to the low speed large flow control valve 42 so as to enable recirculation of the working oil. In such arrangement, a characteristic based on the throttle resistance of an orifice 12 and the elastic modulus of a gas spring 8 is exhibited when the flow control valves 40, 42 are closed. A control unit 50 controls the flow control valves 40, 42 and the changeover valve 36 in combination based on the inner pressure of the cylinder 2 inputted from pressure sensors 52, 62 and the oil pressure in the supply path 34. By such arrangement, suspension characteristic can be controlled optimally over a wide range.

Inventors

• 👤 Kenichi Watanabe
• 👤 憲一 渡辺
• 👤 Hiroo Shimoe
• 👤 下江　洋生
• 👤 Akihiko Miyoshi
• 👤 三好　晃彦
• 👤 Shoichi Kamimura
• 👤 上村　昭一

Bibliographic Details