Method for operating a level control system of a motor vehicle
First Claim
1. A method for operating a level control system of a motor vehicle which includes a control apparatus, a plurality of sensors for directly or indirectly determining the distances of the vehicle chassis to the axles of the vehicle wheels to obtain measured values for said distances and actuators for changing said distances, the method comprising:
- checking in said control apparatus as to whether said distances exceed predetermined limit values with said checking being performed by said control apparatus on the basis of said measured values in a desired-value actual-value comparison;
actuating at least one of said actuators in response to a deviation of said distances from said limit values in order to obtain a level compensation in the sense of a horizontal alignment of said vehicle chassis; and
, preventing an automatic level compensating control when said motor vehicle is disposed in a slope and slant position impermissible for the safety of said motor vehicle.
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Accused Products
Abstract
The invention is directed to a method for operating a level control system of a motor vehicle which includes: a control apparatus, sensors for the direct or indirect determination of the distance of the vehicle chassis to the axles of the vehicle wheels; and, actuators for adjusting the distance of the vehicle chassis to these wheel axles. In the method, the control apparatus checks in a desired-actual comparison based on determined measured values whether the inclination of the vehicle chassis exceeds predetermined limit values. When these limit values are exceeded, one or several of the actuators are actuated in order to obtain a level compensation in the sense of a horizontal alignment of the vehicle chassis. To avoid a turnover of the vehicle (1) in an operating situation on a slope (2), the level compensating control activity is prevented by the control apparatus when the vehicle (1) is disposed in a slope and slant position (angles α, β) which is impermissible for vehicle safety.
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Citations
12 Claims
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1. A method for operating a level control system of a motor vehicle which includes a control apparatus, a plurality of sensors for directly or indirectly determining the distances of the vehicle chassis to the axles of the vehicle wheels to obtain measured values for said distances and actuators for changing said distances, the method comprising:
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checking in said control apparatus as to whether said distances exceed predetermined limit values with said checking being performed by said control apparatus on the basis of said measured values in a desired-value actual-value comparison;
actuating at least one of said actuators in response to a deviation of said distances from said limit values in order to obtain a level compensation in the sense of a horizontal alignment of said vehicle chassis; and
,preventing an automatic level compensating control when said motor vehicle is disposed in a slope and slant position impermissible for the safety of said motor vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification