Patent ID: 6752402
Filing Date: 2004-06-22
Classification: B60G

Abstract:
A level control system for a motor vehicle having a vehicle body, the level control system comprising:a plurality of air springs which can be filled or discharged with pressurized air to control the level of said vehicle body; a first control apparatus for controlling the functions of filling and discharging said air springs in dependence upon the level of said vehicle body; a second control apparatus; a communications channel for interconnecting said first and second control apparatus; a first switch for triggering a first additional function in said level control system; said first switch being movable between a first switching state and a second switching state; said first switch being connected to said second control apparatus and said second control apparatus functioning to transmit a first signal sequence via said communications channel to said first control apparatus when said first switch is transferred from said first switching state into said second switching state; said first control apparatus operating to carry out said additional function when said first control apparatus receives said first signal sequence; a second additional switch for triggering a second additional function; said second switch being movable between a first switching state and a second switching state; said second switch being connected to said second control apparatus and said second control apparatus functioning to transmit a second signal sequence via said communications channel to said first control apparatus when said switch is transferred from said first switching state thereof to said second switching state thereof; said first control apparatus operating to carry out said second additional function when said first control apparatus receives said second signal sequence; and, said first and second signal sequences being distinguishable one from the other.