JPH0162107U - - 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. FIG. 11 is a schematic flowchart showing the operation of roll control;
FIG. 12 is a detailed flowchart showing the cross-country determination routine, FIG. 13 is a diagram showing the G sensor map during normal times and cross-country determination, and FIG. 14 is a diagram showing changes in state due to changes in the output of the vehicle height sensor. 1st
Figure 5 is a detailed flowchart of the roll control routine, Figure 16 is a detailed flowchart of the air supply/exhaust correction routine, Figure 17 is a rear internal pressure-front internal pressure characteristic diagram, and Figure 18 is the air suspension internal pressure Po and air intake/exhaust. A correction coefficient characteristic diagram, FIG. 19 is a detailed flowchart of the damping force switching routine, FIG. 20 is a diagram showing changes in damping force over time, FIG. 21 is a flowchart showing the operation of the first embodiment of the present invention, FIG. 22 is a flowchart showing the operation of the second embodiment of the present invention. 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, 50
...Cornering lamps.

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 of the fluid spring chambers via a supply valve means, and a fluid discharge from each of the fluid spring chambers. a fluid discharge means for discharging fluid through a valve means; a communication means for causing a fluid spring chamber of a left suspension unit and a fluid spring chamber of a right suspension unit to communicate with each other through a communication control valve; A G sensor for detecting acceleration in the left and right direction, a roll amount detection means for detecting the roll amount of the vehicle body, a storage means for storing drive times of the fluid supply means and the fluid discharge means according to the roll amount, When a factor that causes roll is detected, a set amount of fluid is supplied to the fluid spring chamber of the suspension unit on the compression side for the above driving time, and a set amount of fluid is discharged from the fluid spring chamber of the suspension unit on the extension side. The present invention is characterized by comprising a roll control means for driving the supply valve means and the discharge valve means so as to do so, and an alarm means for issuing an alarm when acceleration exceeding a set value is detected by the G sensor. Vehicle suspension device.