Vehicle roll control system
US7055832B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 2, 2002 |
| Grant date | Jun 6, 2006 |
| Priority date | — |
| Expiry date | Feb 11, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G2800/9122
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A roll control system for a motor vehicle comprising a torsion bar (16); a first hydraulic actuator (12) connected to one end (20) of the torsion bar and connectable to an axle (34) of the vehicle; a second hydraulic actuator (14) connected to the other end (28) of the torsion bar and connectable to the axle of the vehicle; a hydraulic control system (62) connected to the hydraulic actuators and including a source of fluid pressure (66), a fluid reservoir (68), at least one supply valve (74, 76), and a pressure control valve (70); and an electrical control system (64) controlling the hydraulic system dependent on sensed vehicle conditions; wherein each hydraulic actuator comprises a rebound chamber (42, 52) and a compression chamber (40, 50) separated by a piston (38, 48), and a piston rod (18, 26) attached to the piston and extending through and out of the rebound chamber; wherein, during straight line motion of the vehicle, the electrical control system actuates the supply valve or valves to isolate the rebound chambers and to connect the compression chambers to the fluid reservoir, and wherein, during turning motion of the vehicle in one direction, the electrical control system …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.