Suspension device comprising a spring corrector

Details Suspension device comprising a spring corrector Suspension device comprising a spring corrector

1998-05-14

2000-12-19

Culbreth, Eric

Land vehicles

Suspension modification enacted during travel

Suspension stiffness for ride comfort

280 55, 2801241, B60G 1702

Patent

active

061618446

ABSTRACT:
The suspension device controls the range of movement between a suspended point connected to the body 3 of a vehicle and a non-suspended point connected to a wheel 2 which includes an elastic link 1 mounted between said suspended and non-suspended points, the elastic link being essentially composed of a spring of stiffness K and predetermined length under a reference load and a reversible electric jack 5 acting parallel to the spring 4 in order to control the movements between said suspended and non-suspended points. The device controls the electric jack so that, based on a variation observed in the distance between the suspended and non-suspended points caused by relative displacement of the suspended and non-suspended points, regardless of the direction of displacement, it first follows the spring while supplying the electric jack 5 with electrical energy so that it develops a force oriented in the same direction as the displacement, and then releases the force developed by the electric jack 5 so as to cancel out the force within a predetermined relaxation time.

REFERENCES:
patent: 3049359 (1962-08-01), Geyer
patent: 4981309 (1991-01-01), Froeschle et al.
patent: 5066041 (1991-11-01), Kindermann et al.
patent: 5091679 (1992-02-01), Murty et al.
patent: 5301111 (1994-04-01), Utsui et al.
patent: 5322321 (1994-06-01), Yopp
patent: 5434782 (1995-07-01), Henry
patent: 5740039 (1998-04-01), Hirahara et al.

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