Control arrangement for vehicle suspension system
US6428024B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 1999 |
| Grant date | Aug 6, 2002 |
| Priority date | — |
| Expiry date | Nov 8, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G2204/8304
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicle suspension control system that allows substantially vertical motion of each wheel relative to the vehicle body includes front and rear resilient support means for supporting the body, a front roll stabilization assembly interconnecting at least one forward pair of wheels and a rear roll stabilization assembly interconnecting at least one rearward pair of wheels. Each roll stabilization assembly includes at least one lateral torsion bar (2) and a double-acting hydraulic actuator (3) interconnected to the at least one lateral torsion bar (2), the front and rear hydraulic actuators (3) being interconnected by first and second fluid conduits (5). Roll moments applied to the vehicle body generate pressure within the fluid conduits (5) thereby transmitting the roll moment into each lateral torsion bar (2). Warp motions of the wheels generate flow along the fluid conduits (5) resulting in a displacement of one hydraulic actuator (3) in a proportional and opposite direction to the other hydraulic actuator (3). The front and rear roll stabilization assemblies provide roll stiffness during both roll and warp motions while at the same time providing substantially zero warp stiffness…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.