| 摘要 |
PURPOSE:To perform an optimum control in every car speed range by cutting the vicinity of a zero level in the output signal, etc. of various sorts of sensors by a dead zone filter, and providing the logic variably controlling the dead zone width thereof according to the car speed. CONSTITUTION:The control valve 7 of the fluid circuit constituting of a fluid suspension, etc. is controlled by a controller 6 based on the detection signal of upper and lower acceleration sensors 5 of a fluid suspension, a relative displacement sensor 4, etc. In this case, plural data zone filters F1-F3 are provided on the controller 6. A dead zone in the specified width is provided in the vicinity of the zero level of the signal made inside the controller 6 and the output signal of each of the sensors 4, 5 on each of dead zone filters F1-F3. On the other hand, the logic controlling each dead zone width variably according to the detection signal of a car speed sensor 16 is provided. Consequently an optimum control is performed in every car speed range and the using of an operation fluid is reduced. |
