Suspension device and suspension control unit
AssigneeKYB Corporation
InventorTatsuya MASAMURA
Life of this patent
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Abstract
A suspension device includes an actuator device provided with an extensible/contractible actuator body interposed between a sprung member and an unsprung member of a vehicle, a pump that supplies fluid to the actuator body to extend or contract the actuator body, and a controller that controls a rotation number of the pump. The controller has a road surface state index obtainment unit that obtains a road surface state index and a target rotation number determination unit that determines a target rotation number of the pump on the basis of the road surface state index.
Claims9
A suspension device comprising:
- an actuator device that includes an extensible/contractible actuator body interposed between a sprung member and an unsprung member of a vehicle, and a pump configured to supply a fluid to the actuator body to extend or contract the actuator body;
- and
- a controller configured to control a rotation number of the pump, wherein
- the controller includes:
- a road surface state index obtainment unit configured to obtain a road surface state index as a measure of road surface roughness during a vehicle travel;
- and
- a target rotation number determination unit configured to determine a target rotation number of the pump on the basis of the road surface state index.
A suspension control unit for controlling a rotation number of a pump in an actuator device having an extensible/contractible actuator body interposed between a sprung member and an unsprung member of a vehicle and the pump configured to supply a fluid to the actuator body to extend or contract the actuator body, the suspension control unit comprising:
- a road surface state index obtainment unit configured to obtain a road surface state index as a measure of road surface roughness during a vehicle travel;
- and
- a target rotation number determination unit configured to determine a target rotation number of the pump on the basis of the road surface state index.
Dependencies are inferred from the claim text.