| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an inexpensive air suspension device having a simple configuration, which adjusts a vehicle height basically using air in a supply and discharge passage, and the energy consumption of which is suppressed as much as possible. <P>SOLUTION: The air suspension device includes: a high-pressure tank HT which is set in a supply flow passage SP that communicates and connects a discharge side of a compressor CP to an air chamber AR; a low-pressure tank LT which is set in a discharge flow passage DP that communicates and connects a suction side of the compressor to an air chamber; control valves SE controlling supply and discharge of air to the air chambers; a supply valve SB for opening and closing the supply flow passage; a discharge valve SA for opening and closing the discharge flow passage; and an inside-outside switching valve SC which switches the suction side of the compressor into a circulation position communicating with the low pressure tank or into an outside air introducing position communicating with air. Control means CM controls opening and closing and switching of each valve in accordance with a detection signal by vehicle height detecting means HS, and also controls to drive the compressor. Upon adjusting a vehicle height while the compressor is in a driven state, the inside-outside switching valve set to the circulation position. <P>COPYRIGHT: (C)2012,JPO&INPIT |
