Control apparatus and method for vehicular suspension system
First Claim
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1. An apparatus for an automotive vehicle, comprising:
- at least two vehicular vertical acceleration detecting devices, a first of the vehicular vertical acceleration devices being arranged at one of a front left road and a front right road wheel side for detecting a vertical acceleration of a first vehicle body portion at the front road wheel side, and a second of the vehicular vertical acceleration devices being arranged at one of a front left and a front right rear road wheel side for detecting a vertical acceleration of a second vehicle body portion at the rear road wheel side; and
a control unit arranged for generating a load mounted state determination signal on a basis of the respective vertical accelerations at the front and rear road wheel sides, determining whether a change in a weight of load applied to a vehicle body between an originally designed vehicular weight and a present vehicular weight occurs on the basis of the generated load mounted state determination signal, and generating and outputting a control parameter as a control signal to a vehicular system, the control parameter being varied when determining that the change in the weight of load applied to the vehicle body occurs.
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Abstract
In an apparatus and method for a vehicular system, a control gain of a control signal to be outputted to the vehicular system is varied when a change in a weight of load applied to a vehicle body between an originally designed weight of load applied to a vehicle body and a present weight of load applied to the vehicle body occurs. The change in the weight of load applied to the vehicle body is determined according to a load mounted state determination signal RM which is derived on the basis of a front road wheel side vertical status variable and a rear road wheel side vertical status variable.
71 Citations
39 Claims
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1. An apparatus for an automotive vehicle, comprising:
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at least two vehicular vertical acceleration detecting devices, a first of the vehicular vertical acceleration devices being arranged at one of a front left road and a front right road wheel side for detecting a vertical acceleration of a first vehicle body portion at the front road wheel side, and a second of the vehicular vertical acceleration devices being arranged at one of a front left and a front right rear road wheel side for detecting a vertical acceleration of a second vehicle body portion at the rear road wheel side; and a control unit arranged for generating a load mounted state determination signal on a basis of the respective vertical accelerations at the front and rear road wheel sides, determining whether a change in a weight of load applied to a vehicle body between an originally designed vehicular weight and a present vehicular weight occurs on the basis of the generated load mounted state determination signal, and generating and outputting a control parameter as a control signal to a vehicular system, the control parameter being varied when determining that the change in the weight of load applied to the vehicle body occurs. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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39. A method for controlling a vehicular system comprising the steps of:
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detecting a vertical status variable of a front road wheel side and a vertical status variable of a rear road wheel side; generating and outputting a control signal to the vehicular system so as to control a variable of the vehicular system to achieve a target variable; determining a load mounted state determination signal on the basis of the vertical status variables; determining whether a change in a weight of load applied to a vehicle body between an originally designed weight of load applied to the vehicle body and a present weight of load applied to the vehicle body occurs on the basis of the load mounted state determination signal; and varying a control parameter determining the control signal when the change in the weight of load applied to the vehicle body occurs.
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Specification