Patents Assigned to TLC Suspension
  • Patent number: 5662356
    Abstract: A roll correction system for use in a vehicle including a body, wheels, and a suspension coupling the body to the wheels includes a roll correction apparatus hydraulically actuated by a hydraulic signal indicative of a roll direction. A hydraulic signal source provides the hydraulic signal conditioned to indicate a roll position in response to a first steering direction. A countersteer correction element maintains the condition of the hydraulic signal to indicate the roll direction in response to countersteer in a second steering direction opposite the first steering direction as would occur, for example, in a skid.
    Type: Grant
    Filed: April 26, 1995
    Date of Patent: September 2, 1997
    Assignee: TLC Suspension
    Inventor: Mark A. Lund
  • Patent number: 5219181
    Abstract: An anti-roll system for turn compensation in a vehicle generates a differential hydraulic signal in which a pressurizing potential corresponds to a first curve direction and a complementary return hydraulic potential. The system includes a pair of rear wheel cylinder and piston assemblies and a pair of front wheel cylinder and piston assemblies. A hydraulic circuit is connected to conduct the pressurizing potential to move the pistons in a first rear wheel cylinder and piston assembly and a first front wheel cylinder and piston assembly, while conducting the return signal to move the pistons in second front wheel cylinder and piston assembly and a second rear wheel cylinder and piston assembly. A hydraulic conductor directly connects corresponding ends of the rear wheel cylinder and piston assemblies to provide a hydraulic conduction between those assemblies in response to conduction of the differential hydraulic signal.
    Type: Grant
    Filed: June 14, 1991
    Date of Patent: June 15, 1993
    Assignee: TLC Suspension
    Inventor: Mark A. Lund
  • Patent number: 5161822
    Abstract: The invention concerns a tilt correction system with at least one pair of cylinder and piston assemblies which are hydraulically operated. The extent of tilt correction is limited by grooves internal to the cylinders of the assemblies which short hydraulic potentials once the pistons of the assemblies have moved from a rest position to a position adjacent the grooves. A preferable arrangement includes connecting each assembly between an anti-roll bar and an axle.
    Type: Grant
    Filed: November 26, 1990
    Date of Patent: November 10, 1992
    Assignee: TLC Suspension
    Inventor: Mark A. Lund