JPH01145705U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a diagram showing the outline of this invention and its correspondence with the scope of the utility model registration claims, Fig. 2 is a schematic configuration diagram showing one embodiment of this invention, and Fig. 3 is a diagram showing the control current supplied to the pressure control valve. A graph showing the relationship with the output control pressure, Fig. 4 is a graph showing the detection characteristics of the lateral acceleration sensor, Fig. 5 is a block diagram showing the controller, and Fig. 6 is a flowchart showing the processing procedure executed in the controller. It's a chat. In the figure, 10 is a vehicle body side member, 12 is an active suspension device, 14FL to 14RR are suspensions, and 19A and 19B are first and second vehicle speed sensors (
vehicle speed sensor), 20 is a lateral acceleration sensor, 22 is a controller, 24 is a wheel side member, 26FL to 26
RR is front left to rear right hydraulic cylinder, 28FL to 28
RR is a front left to rear right pressure control valve.

Claims (1)

[Scope of Claim for Utility Model Registration] A suspension that controls the relative displacement between the vehicle body and wheels according to a changeable command value, and an attitude change detection means that detects attitude change information in response to changes in the attitude of the vehicle body. , an active suspension device configured to change and control the command value based on the attitude change information, comprising: a vehicle speed detection means comprising a plurality of vehicle speed sensors;
a failure determining means for determining whether or not any vehicle speed sensor is in a failure state based on the detected value of the vehicle speed detecting means; a vehicle speed setting means for setting the vehicle speed value, and forcibly setting the highest value among the values detected by the plurality of vehicle speed sensors as the vehicle speed value when the determination result is a failure state; and the vehicle speed determining means. a driving state determining means for determining whether the vehicle is in a running state or a stopped state based on a vehicle speed value set by the vehicle; An active suspension device comprising: command value control means that changes and controls the command value and stops controlling the command value when it is determined that the vehicle is in a stopped state.