Patent ID: 6796163
Filing Date: 2004-09-28
Classification: B60G,G01M

Abstract:
A method for leak-tightness and operational testing of a stop valve of a pneumatic suspension of a motor vehicle including a gas spring supporting a wheel relative to a vehicle body at least on one axle and at least one active volume configured to be connected via the stop valve, the pneumatic system and the vehicle including at least one connectable pressure source, at least one connectable pressure sink and, for each axle, at least one measuring device configured to one of directly and indirectly determine a distance between the axle and the vehicle body, and damping elements configured to limit a stroke of the respective gas spring, comprising the steps of:setting a stroke, during which at least one damping element is compressed, on the gas spring with the stop valve open; after closing the stop valve, setting the gas spring to a part-stroke of a total stroke between the damping elements; after opening the stop valve, determining the distance established between the axle and the vehicle body in accordance with the measuring device; and comparing the distance determined in the determining step with a predetermined desired value.