JPH0162108U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a diagram showing a vehicle suspension device according to an embodiment of the present invention, Fig. 2 is a diagram showing a three-way valve in the driven and non-driving states, and Fig. 3 is a diagram showing the solenoid valve in the driven and non-driving states. FIG. 4 is a diagram showing the driving and non-driving states of the intake air flow rate control valve. FIG. 5 is a vehicle speed vs. steering wheel angular velocity map in SOFT mode. FIG. 6 is a vehicle speed vs. steering wheel angular velocity map in AUTO mode. Figure 7 is SPORT
Vehicle speed-steering wheel angular velocity map in mode, Figure 8 is the G sensor map, Figure 9 is a diagram showing the relationship between the control level and air supply/exhaust time based on the vehicle speed-handle angular velocity map, and Figure 10 is the control level and air supply/exhaust time based on the G sensor map. 11 is a schematic flowchart showing the operation of an embodiment of the present invention, FIG. 12 is a detailed flowchart showing the cross-country determination routine, and FIG. 13 is the G during normal and cross-country determination. Figure 14 is a diagram showing a sensor map, Figure 14 is a diagram showing changes in state due to changes in the output of the vehicle height sensor, Figure 15 is a detailed flowchart of the roll control routine, and Figure 16 is a detailed flowchart of the air supply and exhaust correction routine. , Fig. 17 is a rear internal pressure vs. front internal pressure characteristic diagram, Fig. 18 is a characteristic diagram of air suspension internal pressure Po and air supply/exhaust correction coefficient, Fig. 19 is a detailed flowchart of the damping force switching routine, and Fig. 20 is a damping force FIG. 3 is a diagram showing changes over time. 15a...High pressure reserve tank, 15b...Low pressure reserve tank, 19...Air supply flow rate control valve, 22
, 23, 26, 27... Solenoid valve, 36...
Control unit, 45...pressure sensor.

Claims (1)

[Scope of utility model registration request] A fluid spring chamber provided for each suspension unit that supports each wheel; a fluid supply means for supplying fluid to each fluid spring chamber via a supply valve means; a flow rate control valve that can vary the flow rate; a fluid discharge means for discharging fluid from each of the fluid spring chambers via respective discharge valve means; a communication means for communicating with the spring chamber via a communication control valve; a roll amount detection means for detecting the roll amount of the vehicle body based on the steering wheel angular velocity or the left-right acceleration G; the fluid supply means according to the roll amount; A memory means for storing the drive time of the fluid discharge means, and a memory means for storing a drive time of the fluid discharge means, and a memory means for supplying a set amount of fluid to the fluid spring chamber of the suspension unit on the compression side for the drive time when a factor causing roll in the vehicle body is detected, and also supplying a set amount of fluid to the fluid spring chamber of the suspension unit on the compression side and on the extension side. The above-mentioned supply valve means and discharge valve means are driven so as to discharge a set amount of fluid from the fluid spring chamber of the suspension unit, and when a roll amount corresponding to the handle angular velocity is first detected, the above-mentioned A suspension device for a vehicle, comprising: roll control means for controlling the supply of fluid by increasing the flow rate using the flow rate control valve.