SUSPENSION CONTROL SYSTEM
First Claim
1. A suspension control system for a vehicle provided with a variable damper that can adjust a damping force according to an input signal, comprising:
- a wheel rotational speed sensor for detecting a wheel rotational speed;
a base input value computing means for computing a base input value of the vehicle according to a wheel rotational speed variation detected by the wheel speed sensor;
a state variable computing means for computing a state variable of the vehicle from a vehicle model representing a behavior of the vehicle and receiving an input of the base input value; and
a damper control means for controlling a damping force of the variable damper according to the computed state variable.
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Accused Products
Abstract
A suspension control system allows a state variable of a vehicle used for the damper damping force control to be computed at a high precision without regards to the caster angle given to the suspension geometry. A suspension control system for a vehicle provided with a variable damper that can adjust a damping force according to an input signal comprises a wheel rotational speed sensor for detecting a wheel rotational speed, a gain circuit for computing the unsprung load of each wheel according to the wheel rotational speed variation detected by the wheel speed sensor, a single wheel model computing unit for computing the sprung velocity and the stroke speed by inputting the unsprung load to a single wheel model representing the behavior of the vehicle, and a damper control unit for controlling a damping force of the variable damper according to the computed sprung velocity and stroke speed.
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Citations
15 Claims
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1. A suspension control system for a vehicle provided with a variable damper that can adjust a damping force according to an input signal, comprising:
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a wheel rotational speed sensor for detecting a wheel rotational speed; a base input value computing means for computing a base input value of the vehicle according to a wheel rotational speed variation detected by the wheel speed sensor; a state variable computing means for computing a state variable of the vehicle from a vehicle model representing a behavior of the vehicle and receiving an input of the base input value; and a damper control means for controlling a damping force of the variable damper according to the computed state variable. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification