| 摘要 |
PROBLEM TO BE SOLVED: To provide an air suspension device appropriately performing air supply and exhaust to an air spring. SOLUTION: The air suspension device sets an abnormal flag (a vehicle height lifting adjustment abnormality) to RAM and eeprom (S34, S35), stops an output of a compressor control signal in a later control cycle, and stops drive of a compressor, and by extension, supply of compressed air to the air spring when it is determined to be yes in determination (S33) as to whether air supply time is not less than the maximum continuation air supply time, and moreover, a vehicle height is not more than a prescribed value (within a control dead zone) or not. That can prevent the excessive rise of the inner pressure of the air spring prone to occur resulting from travel on a recessed/protruded road of a vehicle using a prior art continuing air supply to the air spring in an overload condition, and suppress reduction in the durability of the air spring. Since the set condition of the abnormal flag stored in the eeprom is maintained even when an engine is stopped or started, a reduction suppressing effect in the durability of the air spring can be maintained continuously. COPYRIGHT: (C)2010,JPO&INPIT
|
