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US 2009/0266152 A1Published application
Method for controlling the level of a motor vehicle body
AssigneeContinental Aktiengesellschaft
InventorDierk Hein
Life of this patent
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AssigneeContinental Aktiengesellschaft
InventorDierk Hein
Estimating the term…
Disclosed is a method for diagnosing the function of a level control system (1) of a motor vehicle, comprising at least one valve (2a, 2b, 14, 26) and a control unit (10). An exchange of pressure medium from one side of the valve to the other side of the valve is possible when the valve is open, and an exchange of pressure medium is prevented when the valve is closed. The valve carries out a change of state, a variable (4, I) influencing the valve output is measured during the change of state, the measured variable influencing the output of the valve is compared with a reference curve, a family of characteristics or a limit value in the control unit (10), and based on the comparison in the control unit (10) it can be established if the valve has carried out the change of state.
1-15. (canceled)
A method for diagnosing the functioning of a motor vehicle level control system (1) comprising a control unit (10) and at least one electrically actuated valve (2a, 2b, 14, 26) with an open state permitting an exchange of pressure medium from the one side of the valve to the other side of the valve and with a closed state preventing an exchange of pressure medium, the method comprising the steps of
The method as claimed in claim 22, wherein the at least one quantity (U, I) influencing the output of the valve (2a, 2b, 14, 26) is the progression of voltage (U) applied to the valve (2a, 2b, 14, 26).
Dependencies are inferred from the claim text.