Apparatus for controlling a suspension system disposed between a wheel and the body of an automotive vehicle
First Claim
1. In an apparatus for controlling a suspension system disposed between a wheel and a body of an automotive vehicle, having means for controlling the response characteristics of the suspension system to mechanical excitations transmitted by at least one of the body and the wheels, the improvement which comprises:
- a) a first controller receiving first sensor signals representing a vertical speed and a vertical acceleration of the vehicle body, said first controller developing, from the first sensor signals, a first virtual control signal of the controlling means for optimizing a ride quality of the vehicle;
b) a second controller receiving second sensor signals representing a deflection of the wheel and a vertical speed of the wheel relative to the ground, said second controller developing, from the second sensor signals, a second virtual control signal of the controlling means for optimizing contact between the wheel and the ground; and
c) supervising means being sensitive to the first and second virtual control signals for developing a real control signal being applied to the controlling means for adjusting the response characteristic of the suspension system as a function of a predetermined behavior strategy, said supervising means including means for developing the real control signal by a linear combination of the first and second virtual control signals.
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Accused Products
Abstract
An apparatus for controlling a suspension system disposed between a wheel and a body of an automotive vehicle, has a device for adjusting a response of the suspension system to mechanical excitations transmitted by the body and/or the wheels. A first controller is sensitive to a vertical speed and a vertical acceleration of the vehicle body, for developing a first virtual control signal of the adjusting device which is suitable for optimizing a ride of the vehicle. A second controller is sensitive to a deflection of the wheel and a vertical speed of the wheel relative to the ground, for developing a second virtual control signal of the adjusting device which is suitable for optimizing contact between the wheel and the ground. A supervising device is sensitive to the first and second virtual control signals for developing a real control signal which is applied to the adjusting device for adjusting the response of the suspension system as a function of a predetermined behavior strategy.
26 Citations
10 Claims
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1. In an apparatus for controlling a suspension system disposed between a wheel and a body of an automotive vehicle, having means for controlling the response characteristics of the suspension system to mechanical excitations transmitted by at least one of the body and the wheels, the improvement which comprises:
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a) a first controller receiving first sensor signals representing a vertical speed and a vertical acceleration of the vehicle body, said first controller developing, from the first sensor signals, a first virtual control signal of the controlling means for optimizing a ride quality of the vehicle; b) a second controller receiving second sensor signals representing a deflection of the wheel and a vertical speed of the wheel relative to the ground, said second controller developing, from the second sensor signals, a second virtual control signal of the controlling means for optimizing contact between the wheel and the ground; and c) supervising means being sensitive to the first and second virtual control signals for developing a real control signal being applied to the controlling means for adjusting the response characteristic of the suspension system as a function of a predetermined behavior strategy, said supervising means including means for developing the real control signal by a linear combination of the first and second virtual control signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification