| 摘要 |
PROBLEM TO BE SOLVED: To simply set a target value in manufacture and in the service such as a repair and maintenance by storing an output value from a height sensor when an internal pressure of an air spring is lowered sufficiently and computing the value found by adding a constant value to the output value as a control target value. SOLUTION: When an internal pressure of an air spring 1 is lowered, a chassis 4 lowers by its self-weight so as to be brought into contact with the upper end of an axle housing 2. In this contact position, a stopper rubber is mounted on the chassis 4 side. With the chassis 4 lowered, a memory switch is pressed so as to read an output value of a height sensor 5. A clearance between the stopper rubber and the upper end of the axle housing 2 is designed to be kept at a fixed standard value around 50-70 mm. An output value equivalent matching with the fixed standard value is stored as a constant in a memory of a control circuit 6 and added to an output value of the height sensor 5 in the lowered condition so as to be set as a target control value.
|
