B - Operations – Transporting – 62 – D
Patent
B - Operations, Transporting
62
D
B62D 33/10 (2006.01) B62D 33/06 (2006.01) F16F 15/027 (2006.01)
Patent
CA 2309989
An active suspension system including multiple active vibration isolators (28, 30, 32) mounted between the chassis (4) and cab (6) is disclosed. Each isolator (28, 30, 32) includes a spring (44) and hydraulic actuator (68) connected between mounts (40, 42) between the cab (6) and chassis (4). The actuator (44) moves the cab (6) relative to the chassis (4) when hydraulic fluid is selectively supplied to the actuator (68) by a valve assembly (206) responsive to a valve control signal. A first isolator sensor (132) measures displacement between the mounts, and a second isolator sensor (84) measures cab movement due to disturbances in the chassis (4). The multiple isolators (28, 30, 32) are controlled by a common control circuit (200) which controls cab movement based on coordinated control signals.
La présente invention concerne un système de suspension actif comprenant plusieurs isolateurs de vibrations (28, 30, 32) actifs, montés entre le châssis (4) et la cabine (6). Chaque isolateur (28, 30, 32) comprend un ressort (44) et un actionneur hydraulique (68) montés entre les montants (40, 42) reliant la cabine (6) et le châssis (4). L'actionneur (44) déplace la cabine (6) par rapport au châssis (4) lorsque le fluide hydraulique est sélectivement fournit à l'actionneur (68) par un ensemble de soupapes (206) réagissant à un signal de commande de soupape. Un premier détecteur d'isolateur (132) mesure le déplacement entre les montants, et un second détecteur d'isolateur (84) mesure le déplacement de la cabine dû aux secousses du châssis (4). Plusieurs isolateurs (28, 30, 32) sont commandés par un circuit de commande (200) commun qui commande le déplacement de la cabine sur la base de signaux de commande coordonnés.
Case Corporation
Finlayson & Singlehurst
LandOfFree
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