JPH0211707U - - Google Patents

Description

[Brief explanation of drawings]

Figures 1a and b are diagrams corresponding to the claims of the utility model registration of this invention, Figure 2 is a schematic diagram showing the first embodiment of this invention, and Figure 3 is an excitation current I for the pressure control valve. FIG. 4 is a block diagram of the controller in the first embodiment, FIG. 5 is a schematic flowchart showing the processing procedure of the first embodiment executed in the controller, and FIG. The figure is a schematic flowchart showing the processing procedure of the second embodiment executed in the controller. In the figure, 10 is a vehicle body side member, 12 is an active suspension, 16 is a wheel side member, 18FL to 18R.
R is front left to rear right hydraulic cylinder, 20FL to 20R
R is a front left to rear right pressure control valve, 26 is a lateral acceleration sensor, 27 is FL to 27RR are pressure sensors, 28 is an ignition switch, and 30 is a controller.

Claims (1)

[Claims for Utility Model Registration] (1) A fluid pressure cylinder installed between the vehicle body and the wheels, a pressure control valve that controls the operating pressure of the fluid pressure cylinder according to a changeable command value, and the command value. In an active type suspension, the active suspension includes a posture change control means for changing and controlling the vehicle body according to a change in the posture of the vehicle, a pressure detection means for detecting the operating pressure of the fluid pressure cylinder, and an initial state for determining the initial state of the suspension. a state determining means; a pressure target value setting means for setting a detected value of the pressure detecting means when the initial state is determined by the initial state determining means as a pressure target value; and an initial state determined by the initial state determining means. operating pressure priority control means for controlling the command value with priority so that the operating pressure of the fluid pressure cylinder becomes equal to the pressure target value set by the pressure target value setting means for a predetermined period of time after the command value is set by the pressure target value setting means; Active type suspension. (2) A fluid pressure cylinder installed between the vehicle body and the wheels, and a pressure control valve that controls the operating pressure of the fluid pressure cylinder according to a changeable command value, and A pressure detecting means for detecting a pressure, an initial state determining means for determining an initial state of the suspension, and a detected value of the pressure detecting means when the initial state is determined by the initial state determining means is set as an initial pressure value. an initial pressure value setting means; a pressure target value adjustment means for setting a pressure target value that is gradually changed from the initial pressure value set by the initial pressure value setting means to an operating neutral pressure of the fluid pressure cylinder; and a pressure target value adjustment means. 1. An active suspension comprising: attitude change control means for changing and controlling the command value according to a pressure target value set by the means and a change in the attitude of the vehicle body.