Damper control device
AssigneeKYB Corporation
InventorsTomoo Kubota, Masatoshi Okumura
Life of this patent
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Abstract
A damper control device controls vibration of an unsprung member by controlling a damping force of a damper interposed between a sprung member and the unsprung member of a vehicle on the basis of a damping property prepared in advance. The damper control device includes a correction unit that extracts a sprung resonant frequency component of a stroke velocity of the damper, and corrects a damping force target value of the damper on the basis of the extracted above-spring resonant frequency component.
Claims8
A damper control device for controlling vibration of an unsprung member by controlling a damping force of a damper interposed between a sprung member and the unsprung member of a vehicle on the basis of a damping property prepared in advance, the damper control device comprising:
- a correction unit configured to extract a sprung resonant frequency component of a stroke velocity of the damper, and correct a damping force target value of the damper on the basis of the extracted sprung resonant frequency component,
- wherein the correction unit is configured to obtain a correction gain from the sprung resonant frequency component of the stroke velocity and vibration information of the damper, and obtain the damping force target value on the basis of the damping property and the correction gain.
A damper control device for controlling vibration of an unsprung member by controlling a damping force of a damper interposed between a sprung member and the unsprung member of a vehicle on the basis of a damping property prepared in advance, the damper control device comprising:
- a correction unit configured to extract a sprung resonant frequency component of a stroke velocity of the damper, and correct a damping force target value of the damper on the basis of the extracted sprung resonant frequency component,
- wherein the correction unit is configured to perform correction to increase an absolute value of the damping force target value in a case where a direction of extension/compression of the damper matches a direction of the sprung resonant frequency component of the stroke velocity, and perform correction to reduce the absolute value of the damping force target value in a case where the direction of extension/compression of the damper does not match the direction of the sprung resonant frequency component of the stroke velocity.
Dependencies are inferred from the claim text.