Method and apparatus for controlling spring stiffness, in partic

Details Method and apparatus for controlling spring stiffness, in partic Method and apparatus for controlling spring stiffness, in partic

1986-04-14

1988-05-10

Kashnikow, Andres

Spring devices

Vehicle

Mechanical spring and nonresilient retarder

188299, 188314, 267 6421, 280707, F16F 904, F16D 6552, B60G 1126

Patent

active

047430001

ABSTRACT:
A method and an apparatus for controlling the spring stiffness in two bodies or masses that are movable relative to one another and in their absolute positions with variable speeds, in particular in resilient wheel suspension systems for vehicles and the like, wherein the volume positively displaced by a piston in a cylinder pressure chamber can be abruptly switched over into two partial volumes in accordance with load, movement and operating parameters of the vehicle, suspension and wheel as well as vehicle body, with it being possible, with partial volumes communicating with one another, to perform an additional total-volume fine adjustment continuously via a cylinder/piston unit and also in accordance with the parameters mentioned. A suspension concept of this kind, with slow, continuous adaptive adaptation and rapid switchover to greater stiffnesses is augmented by an asymmetrically variable damping and a preferably fast-operating level control means.

REFERENCES:
patent: 1490360 (1924-04-01), Bradwn
patent: 1522243 (1925-01-01), Hughes
patent: 2689616 (1954-09-01), Nagler
patent: 4177023 (1979-12-01), Kamiya et al.
patent: 4386791 (1983-06-01), Watanabe
patent: 4625994 (1986-12-01), Tanaka et al.

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