Traction control and active suspension

B - Operations – Transporting – 60 – G

Patent

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Details

B60G 17/015 (2006.01) B60K 28/16 (2006.01)

Patent

CA 2309822

A traction control and active suspension for land vehicles of the type having ground-engaging wheels (24) and a fluid motor (72, 74, 76, 78) for each wheel (24), located on a wheel mount (32) movable with respect to a vehicle frame (14), wherein a suspension spring (42) and fluid cylinder (88, 90) are interposed between the wheel mount (32) and the frame (14), and fluid pressure applied to the wheel motor (72, 74, 76, 78) is also applied to the cylinder (88, 90) such that when traction is lost, the fluid pressure drops in the cylinder (88, 90), allowing the spring (42) to extend the wheel mount (32) towards the ground to regain traction. A fluid valve (114) is provided to flush the fluid cylinder (88, 90) when the vehicle transmission is in a neutral condition in one embodiment, while an alternative embodiment uses a pair of diverter valves (160, 162) to accomplish flushing of the fluid cylinders (88, 90).

On décrit un régulateur de traction et une suspension active pour véhicules terrestres du type qui comporte des roues de contact (24) avec le sol et un moteur hydraulique (72, 74, 76, 78) pour chaque roue (24) installé sur un assemblage de roue (32) pouvant se déplacer relativement à un châssis (14) de véhicule. Un ressort de suspension (42) et un cylindre hydraulique (88, 90) sont interposés entre l'assemblage de roue (32) et le châssis (14), et la pression hydraulique exercée sur le moteur de roue (72, 74, 76, 78) s'exerce également sur le cylindre (88, 90) de sorte que, lorsque la traction est perdue, la pression hydraulique dans le cylindre (88, 90) chute, ce qui permet au ressort (42) de provoquer l'extension de l'assemblage de roue (32) vers le sol pour récupérer la traction. Dans une forme de réalisation, une valve hydraulique (114) purge le cylindre hydraulique (88, 90) lorsque la transmission du véhicule est dans un état neutre. Dans une forme de réalisation différente, une paire de valves de dérivation (160, 162) effectue la purge des cylindres hydrauliques (88, 90).

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