Patent ID: 6761372
Filing Date: 2004-07-13
Classification: B60G

Abstract:
A vehicle suspension system placed between a chassis having a sprung weight and each of a plurality of wheel axle supports carrying unsprung weight, the vehicle suspension system at least operative to independently control motion between the chassis and each wheel axle support during jounce and rebound, the vehicle suspension system including a plurality of load springs having an elastic constant, each load spring located between the chassis and its respective wheel axle support, each of the plurality of respective load springs for supporting the sprung weight of the chassis carried there on at a set ride height relative to its respective wheel axle support and for substantially carrying the sprung weight during jounce motion of the chassis, each of the respective load springs mounted for flexing between the chassis and its respective wheel axle support for resisting motion of the chassis sprung weight under load and during jounce, the vehicle suspension system comprising:a rebound control spring mounted between the chassis and each wheel axle support for exerting increasing force to its respective wheel axle support during rebound motion of the sprung weight of the chassis away from its respective wheel axle support, each rebound control spring operatively mounted in opposition to its respective load spring for increasing resistance to chassis sprung weight rebound motion thereby applying increasingly more of the unsprung weight of each respective wheel axle support through each rebound control spring to resist rebound motion of the chassis sprung weight away from its respective wheel axle support, each respective rebound control spring having an elastic constant less than the elastic constant of its respective load spring for resisting the rebound motion of the chassis sprung weight.