| 摘要 |
PROBLEM TO BE SOLVED: To attain reduction of weight and miniaturization of a device by making the number of solenoid valves fewer, in attitude control of a vehicle body by air-feeding and exhaust to an air spring. SOLUTION: The railway vehicle is provided with a vehicle body attitude control device for performing attitude control of a vehicle body 1 at passing on a curved line by air-feeding and exhaust to the air springs 3a, 3b provided on left and right sides of a truck 2. The air springs 3a, 3b and an air source 4 are connected by a pipe of two systems of a pipe 5a on which air-feeding valves 7a, 7b and air-discharge valves 8a, 8b for performing air-feeding and exhaust to the air springs 3a, 3b based on the detection value of height sensors 6a, 6b are installed on the midway and the other pipe 5b on which height adjustment valves 9a, 9b for adjusting the height of the air springs 3a, 3b are only installed on the midway. At passing on the curved line, the vehicle body 1 is controlled so as to retain it horizontal relative to the truck 2. Since a change-over solenoid valve is not installed, reduction of weight and miniaturization by reduction of the number of the solenoid valves can be attained. COPYRIGHT: (C)2009,JPO&INPIT
|
