Actuator for an active chassis of a motor vehicle
AssigneeZF Friedrichshafen AG
InventorsAndreas Thies, Uwe Wohanka, Christoph Pelchen
Life of this patent
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Abstract
An actuator for an active chassis of a motor vehicle is proposed which includes a body spring and a vibration damper, and which incorporates a hydraulic or pneumatic positioning cylinder (3) and a compensation spring (2). The actuator (1) is so designed and positioned that the static body mass (13) is borne by the compensation spring (2).
Claims11
An actuator of an active chassis of a motor vehicle, the active chassis comprising:
- a body spring (4) being coupled to at least one unsprung mass,
- a vibration damper (5) coupling the vehicle chassis to the at least one unsprung mass, and
- the actuator (1) comprising:
- a compensation spring (2), and
- one of a hydraulic and a pneumatic positioning cylinder (3),
- a first end of the actuator (1) being coupled to the vehicle chassis and an opposite second end of the actuator (1) being coupled to the body spring (4);
- and
- the compensation spring (2) of the actuator (1) bearing a static body mass (13) of the vehicle.
An actuator forming part of an active chassis for a wheel supported by a vehicle chassis of a motor vehicle, the active chassis comprising:
- a body spring (4) being coupled to the wheel,
- a vibration damper (5) directly coupling the vehicle chassis to the wheel, and
- the actuator (1) having a first end thereof coupled to the vehicle chassis and an opposite end thereof coupled to the body spring (4), and the actuator (1) comprising:
- a compensation spring (2), and
- one of a hydraulic and a pneumatic positioning cylinder (3),
- the actuator (1) and the body spring (4) being connected in parallel with the vibration damper (5);
- and
- the compensation spring (2) of the actuator (1) bearing a static body mass (13) of the vehicle while the positioning cylinder (3) compensating for supplemental forces.
An actuator forming part of an active chassis for a wheel supported by a vehicle chassis of a motor vehicle, the active chassis comprising:
- a body spring (4) being coupled to the wheel,
- a vibration damper (5) directly coupling the vehicle chassis to the wheel, and
- the actuator (1) having a first end thereof coupled to the vehicle chassis and an opposite end thereof coupled to the body coil spring (4), and the actuator (1) comprising:
- a compensation coil spring (2) being connected in parallel one of a hydraulic and a pneumatic positioning cylinder (3),
- the actuator (1) and the body coil spring (4) being connected in series with one another but in parallel with the vibration damper (5);
- and
- the compensation coil spring (2) of the actuator (1) bearing a static body mass (13) of the vehicle while the positioning cylinder (3) only compensating for supplemental forces.
Dependencies are inferred from the claim text.