Roll control system for a motor vehicle
US6276693A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 12, 1999 |
| Grant date | Aug 21, 2001 |
| Priority date | — |
| Expiry date | Nov 12, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G2800/9122
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A roll control system for installation between axially aligned wheels of a motor vehicle, the roll control system comprising a torsion bar; a first hydraulic actuator attached to one end of the torsion bar and attachable to one of the wheels; a second hydraulic actuator attached to the other end of the torsion bar and attachable to the other wheel; and an electronic control unit monitoring one or more predetermined vehicle operating conditions; wherein the first and second hydraulic actuators are substantially identical, each comprising a compression chamber containing hydraulic fluid, a rebound chamber containing hydraulic fluid, a movable piston between and fluidly isolating the compression chamber and the rebound chamber, a piston rod connected to the piston and extending through the rebound chamber, a gas chamber containing pressurised gas acting on the hydraulic fluid in the rebound chamber, and an electrically operated valve between the compression chamber and the rebound chamber and actuated by the control unit dependent on the monitored conditions, the valve being actuable between a two-way position in which the valve allows hydraulic fluid to flow between the compression c…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.