METHOD FOR TUNING THE SUSPENSION OF A MOTOR VEHICLE, AND SUSPENSION STRUT

摘要

The invention relates to a method for tuning the suspension of a motor vehicle. A linear motor (7, LM), in particular a linear electric motor (7, LM), is arranged in the suspension strut of each vibration damper (k2), in particular controllable vibration damper (k2), of at least one axle of the two axles of the chassis in a parallel manner relative to said vibration damper (k2). The linear motor (7, LM) is connected to the sprung mass (m2) of the motor vehicle on one side of the linear direction of action of the motor and to the unsprung mass (m1) of the motor vehicle on the other side via the same fixing points as the corresponding vibration damper (k2). Each linear motor (7, LM) is controlled by means of a controller dependent on measured values which are detected while the vehicle is traveling, and additional forces are added to and/or subtracted from the forces acting on the respective vibration damper (k2). The invention further relates to a suspension strut (1) for a chassis of a motor vehicle, comprising an upper hinge point (2) for connecting the suspension strut (1) to the sprung mass (m2) of the motor vehicle, a lower hinge point (3) for connecting the suspension strut (1) to the unsprung mass (m1) of the motor vehicle, and a pairing of a vibration damper (k2, 4) and a suspension spring (c2, 5), said pairing being arranged between the hinge points (2, 3), wherein a linear motor (7, LM) is arranged parallel to said pairing and extends between the same hinge points (2, 3).

主权项

1. A method of tuning the suspension of a motor vehicle including a shock absorber and a vibration damper, the method comprising the steps of:
providing a linear actuator in the shock absorber of the vibration damper parallel to the vibration damper; connecting the linear actuator to the sprung mass of the motor vehicle through the same attachment points as the vibration damper at one end of its linear operational direction and to the unsprung mass of the motor vehicle at the other end; and operating each linear actuator by a controller as a function of values detected with the vehicle in motion by adding or subtracting additional forces from the forces acting on the vibration damper.