Suspension device and recording medium
AssigneeHitachi Astemo, Ltd.
InventorYosuke Murakami
Life of this patent
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Abstract
A suspension device includes: a damping device that damps a force generated between a vehicle body and a wheel of a vehicle; a determination unit that determines whether the vehicle is jumping, using an acceleration of the vehicle in a front-rear direction, an acceleration of the vehicle in a left-right direction, and an acceleration of the vehicle in a vertical direction; and a damping force control unit that increases a damping force of the damping device so as to be greater than the damping force generated when the determination unit does not determine that the vehicle is jumping, when the determination unit determines that the vehicle is jumping.
Claims13
A suspension device comprising:
- a damping device that damps a force generated between a vehicle body and a wheel of a vehicle;
- a determination unit that determines whether the vehicle is jumping, using an acceleration of the vehicle in a front-rear direction, an acceleration of the vehicle in a left-right direction, and an acceleration of the vehicle in a vertical direction;
- and
- a damping force control unit that increases a damping force of the damping device such that the damping force generated when the determination unit determines that the vehicle is jumping is greater than the damping force generated when the determination unit does not determine that the vehicle is jumping, wherein
- the determination unit determines whether the vehicle is jumping by further considering a length between the vehicle body and the wheel.
A suspension device comprising:
- a damping device that damps a force generated between a vehicle body and a wheel of a vehicle;
- a determination unit that determines whether the vehicle is jumping, using an acceleration of the vehicle in a front-rear direction, an acceleration of the vehicle in a left-right direction, and an acceleration of the vehicle in a vertical direction;
- and
- a damping force control unit that increases a damping force of the damping device such that the damping force generated when the determination unit determines that the vehicle is jumping is greater than the damping force generated when the determination unit does not determine that the vehicle is jumping, wherein
- at a time of jumping when the determination unit determines that the vehicle is jumping, the damping force control unit increases the damping force in a compression direction such that a relative displacement between the vehicle body and the wheel is less than the relative displacement at a time of normal traveling when the determination unit does not determine that the vehicle is jumping, and
- until a predetermined reference period elapses after landing from a jump of the vehicle, the damping force control unit increases the damping force in an extension direction in which the relative displacement between the vehicle body and the wheel is greater than the relative displacement at the time of the normal traveling.
A non-transitory computer readable recording medium storing a program that causes a computer to implement:
- a function of determining whether a vehicle is jumping, using an acceleration of the vehicle in a front-rear direction, an acceleration of the vehicle in a left-right direction, and an acceleration of the vehicle in a vertical direction;
- and
- a function of increasing a damping force of a damping device that damps a force generated between a vehicle body and a wheel of the vehicle such that the damping force generated when it is determined that the vehicle is jumping is greater than the damping force generated when it is not determined that the vehicle is jumping, wherein
- a length between the vehicle body and the wheels is further considered in determining whether the vehicle is jumping.
Dependencies are inferred from the claim text.