Land vehicles – Suspension modification enacted during travel – Lateral vehicle disposition
Reexamination Certificate
2006-06-06
2006-06-06
Dickson, Paul N. (Department: 3616)
Land vehicles
Suspension modification enacted during travel
Lateral vehicle disposition
C280S005511, C280S124106, C280S124158, C280S124161
Reexamination Certificate
active
07055832
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 actuates the supply valve or valves to connect the rebound chambers to a controlled fluid pressure form the hydraulic control system, to connect the compression chamber remote from the turning direction to the controlled fluid pressure, and to connect the other compression chamber to the fluid reservoir. Provides smooth roll control during change in turning direction.
REFERENCES:
patent: 2184202 (1939-12-01), Tschanz
patent: 3895820 (1975-07-01), Takahashi et al.
patent: 4930807 (1990-06-01), Lachaize
patent: 5682980 (1997-11-01), Reybrouck
patent: 5941334 (1999-08-01), Inagaki
patent: 5948028 (1999-09-01), Raad et al.
patent: 6053510 (2000-04-01), Kokotovic
patent: 6098994 (2000-08-01), Kunishima et al.
patent: 6175792 (2001-01-01), Jones et al.
patent: 6254108 (2001-07-01), Germain et al.
patent: 6871866 (2005-03-01), Gloceri et al.
patent: 6942230 (2005-09-01), Fontdecaba Buj
Delphi Technologies Inc.
Dickson Paul N.
Smith Michael D.
Webb Tiffany
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