Suspension control device, vehicle comprising said device, production method thereof and associated program
AssigneePeugeot Citroen Automobiles SA
InventorFrancois Poilbout
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Abstract
The invention relates to a device for controlling the suspension of the body shell of a motor vehicle. The inventive device comprises a calculator (CSS) which can calculate a control value (ER) for an actuator (M) of a shock absorber (AM) of the suspension (S) as a function of at least one modal body shell speed calculated from a modal body shell acceleration. The invention is characterized by a sensor (CAP-DEB) for sensing wheel (A,B, C, D) travel in relation to the body shell, which is connected to a first means (CAL) for calculating the modal body shell acceleration from the travel measurement (DEB) provided by the sensor (CAP-DEB).
Claims18
Suspension control device with variable damping for a motor vehicle body on its wheels, said device comprising:
- a computer adapted to calculate a control magnitude of an actuator of at least one damper with variable damping of a suspension of the vehicle as a function of at least one body modal speed, calculated from at least one body modal acceleration determined on the vehicle,
- at least one displacement sensor providing a displacement measurement which is a measurement of a displacement of a wheel of the vehicle with respect to the vehicle body,
- a first calculation means for calculating the body modal acceleration from the displacement measurement provided by the displacement sensor, wherein the first calculation means for calculating the body modal acceleration comprises:
- a suspension force estimator providing an estimation of at least one force exerted by a suspension of said wheel on the body as a function of at least the displacement measurement provided by the displacement sensor, and
- a second calculation means for calculating the body modal acceleration as a function of at least the suspension force provided by said suspension force estimator.
Dependencies are inferred from the claim text.