| 摘要 |
PURPOSE:To provide an air suspension mechanism, wherein different types of control are made optimumly using a small amount of air, by controlling the car height and attitude of a car actively, and controlling the comfort for passengers passively by means of spring characteristics of the suspension itself. CONSTITUTION:Between the car body 1 and each wheel 2, an air suspension is installed which is equipped with a damper 3 having an actuator 3'. This air suspension is equipped with an aux. spring 4, and air is supplied and exhausted to/from its air spring chamber 5 to make the pressure adjustable. The pressure is sensed by a sensor 6 at all times. A control valve 7 is interposed between the air spring chamber 5 and air pressure source 8, while a check valve 9 between the same air spring chamber 5 and this control valve 7. The valves 8, 9 are controlled by a controller 10. At this time, control of car height is made only when a specific control timing signal is generated, while control of the comfort of passengers and the attitude made under the low-frequency response characteristic of the control system. |
