| 摘要 |
PROBLEM TO BE SOLVED: To provide a suspension device structured so that an air spring is installed to each wheel, allowing acquiring the air pressure in the fluid pressure chamber of the air spring for each wheel on the basis of the sensing value of one system pressure sensor. SOLUTION: An air supply device 82 includes a compressor 90 and a high pressure tank 92, and when the car height is to be increased, the compressor 90 is actuated and a high-pressure tank valve 112 is opened. Owing to supplying the air from both the compressor 90 and the high pressure tank 92, the car height can be increased quickly. To sense the air pressure in the fluid pressure chamber 56, on the other hand, the tank valve 112 is closed. Because the air outflow from the tank 92 is hindered, the rate of air flow can be lessened and the influence of pressure loss can be lessened. This enables acquiring accurately the pressure in the fluid pressure chamber 56 of the air springs 10-16 for each wheel on the basis of the sensing value of the system pressure sensor 110. COPYRIGHT: (C)2006,JPO&NCIPI
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