Control system for adjustable damping force damper
AssigneeHonda Motor Co., Ltd.
InventorsMasaki Izawa, Takafumi Kato
Life of this patent
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Abstract
A control system for a adjustable damping force damper includes a damper and a spring provided on a suspension apparatus of a vehicle, a sprung speed sensor for detecting speed of an upper member of the spring, the sprung speed is generated when the vehicle gets over steps on a road surface and a control unit for setting a gain so as to determine an damping force of the damper based on a product of the sprung speed and the gain. When an absolute value of the sprung speed exceeds a predetermined value, the control unit changes the gain in response to a positive sign or a negative sign of the sprung speed.
Claims4
A control system for an adjustable damping force damper, comprising:
- a damper and a spring provided on a suspension apparatus of a vehicle;
- a sprung speed sensor for detecting speed of an upper member of the spring, the sprung speed is generated when the vehicle gets over steps on a road surface;
- and
- a control unit for setting a gain so as to determine a damping force of the damper based on a product of the sprung speed and the gain,
- wherein, when an absolute value of the sprung speed exceeds a predetermined value, the control unit changes the gain in response to a positive sign or a negative sign of the sprung speed.
A control method for an adjustable damping force damper provided on a suspension apparatus of a vehicle, comprising the steps of:
- detecting a sprung speed which is generated when the vehicle gets over steps on a road surface;
- determining whether or not an absolute value of the sprung speed exceed a predetermined value, and changing a gain in response to a positive or negative sign of the sprung speed
- controlling a damping force in accordance with a product of the sprung speed and the gain.
Dependencies are inferred from the claim text.