Land vehicles – Wheeled – Running gear
Patent
1990-01-24
1991-10-15
Marmor, Charles A.
Land vehicles
Wheeled
Running gear
280709, 280714, B60G 1126
Patent
active
050568116
ABSTRACT:
An actively controlled suspension system has two hydraulic systems for generating damping force against the vibration to be transmitted between a vehicle body and a suspension member. One of the hydraulic systems is designed for absorbing relatively high frequency vibration generally input from the suspension member for preventing vibration from the suspension member from being transmitted to the vehicle body. The other hydraulic system is active on relatively low frequency of vibration generally input from the vehicle body upon change of attitude of the vehicle body. The other hydraulic system generates a fluid pressure suppressing the attitude change. A pressure control valve and a fluid pressure source may be incorporated in the second hydraulic system so that they may not be active when aforementioned one of the hydraulic system is active.
REFERENCES:
patent: 4216977 (1980-08-01), Fujii
patent: 4659104 (1987-04-01), Tanaka et al.
patent: 4685698 (1987-08-01), Klinkner et al.
J. M. Hamilton, "Computer-Optimized Adaptive Suspension Technology", IEEE Transations on Industrial Electronics, IE-32, No. 4, Nov., 1985, pp. 355-363.
Akatsu Yohsuke
Fukunaga Yukio
Fukushima Naoto
Hano Sunao
Finlay Tamara L.
Marmor Charles A.
Nissan Motor Company Limited
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