Patent ID: 7946660

Claim:
An electronic compressed-air system for a vehicle, comprising a compressed-air supply part and a compressed-air consumer part, said compressed-air supply part including a compressor, said compressed-air consumer part including a plurality of compressed-air load circuits, electrically actuatable valves for supplying compressed-air to said compressed-air load circuits, a compressed-air accumulator associated with at least one of said load circuits, sensors for monitoring pressure in said load circuits, and an electronic control unit for evaluating electrical pressure signals from said sensors and for controlling said electrically actuatable valves, said electrically actuatable valves associated with said load circuits being in open position in a de-energized normal state, said compressed-air load circuits including service-brake circuits having at least one compressed-air accumulator, at least one secondary load circuit without a compressed-air accumulator and a high-pressure circuit at least one of without and with a compressed-air accumulator, ones of said electrically actuatable valves associated with said service-brake circuits and ones of said electrically actuatable valves associated with said at least one secondary load circuit being in open position in said de-energized normal state and an electrically actuatable valve of said high-pressure circuit being in closed position in said de-energized normal state.