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Level control system for a motor vehicle

  • US 6,752,402 B2
  • Filed: 12/21/2001
  • Issued: 06/22/2004
  • Est. Priority Date: 12/21/2000
  • Status: Expired due to Fees
First Claim
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1. 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.

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