Improvements to vehicle suspension systems

B - Operations – Transporting – 60 – G

Patent

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Details

B60G 21/04 (2006.01) B60G 21/045 (2006.01) B60G 21/05 (2006.01) B60G 21/055 (2006.01) B60G 21/06 (2006.01) B60G 21/067 (2006.01) B60G 21/073 (2006.01)

Patent

CA 2286103

A suspension system for a vehicle having a body (1) supported on at least one forward pair of laterally spaced wheels and at least one rear pair of laterally spaced wheels, including suspension means for supporting the vehicle body above each said pair of wheels, said suspension means including front and rear fluid support means (4, 5) for supporting at least a portion of the load on the suspension means, at least one of the vehicle support means (4, 5) providing substantially zero roll stiffness for the vehicle, roll moment reaction means (8) for providing location of the body (1) about a substantially level roll attitude, and pitch control means (12) interconnecting the front and rear fluid support means (4, 5), wherein changes in fluid pressure within at least one of said fluid support means are transferable by the pitch control means to the other said fluid support means.

L'invention concerne un système de suspension pour un véhicule. Ce système comporte un corps (1) supporté sur au moins une paire de roues avant espacées dans le sens latéral, et au moins une paire de roues arrière espacées dans le sens latéral. Ce système comporte également des moyens de suspension pour supporter le corps du véhicule au-dessus des roues. Ces moyens de suspension comprennent des moyens de support hydrauliques avant et arrière (4,5) pour supporter au moins une partie de la charge sur le moyen de suspension, au moins un des moyens de support du véhicule (4, 5) pour assurer une rigidité supprimant le roulis du véhicule. Ce système de suspension comporte aussi des moyens de réaction au roulis (8) pour assurer l'emplacement du corps (1) selon une orientation de roulis sensiblement horizontale, et des moyens de contrôle du tangage (12) reliant les moyens de support hydraulique avant et arrière (4, 5). Les changement de pression hydraulique dans au moins un des moyens de support hydrauliques peuvent être transférés par le moyen de contrôle du tangage à l'autre moyen de support hydraulique

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