JPS60136211U - Electronically controlled suspension device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

FIG. 1 is a diagram showing an electronically controlled suspension system according to an embodiment of the invention, FIG. 2 is a flowchart for performing attitude control, and FIG. 3 is a diagram showing vehicle speed-handle angular velocity characteristics. - 11a to 11d... Main air spring chamber, 12a to 12d.
... Sub-air spring chamber, 16... Controller, 34...
・111111i, 3. Il, 2b ``11- Ippei Ichi --- Figure 3 ♀ Indecent (ni m/h) --- Until Figure 2 Shout D...1 Stanza 11 Amendment April 5, 1980 The name of the invention was changed to the following. The scope of the claims for utility model registration and the brief description of the drawings for the electronic suspension device invented by Meisho are amended as follows. O The scope of claims for utility model registration a suspension unit having a suspension unit; a fluid supply means capable of supplying fluid to each fluid spring chamber of the suspension unit via a supply on-off valve; and a fluid supply means capable of supplying fluid to each fluid spring chamber of each suspension unit via a discharge on-off valve, A fluid discharging means that can be discharged; a connecting means that communicates the fluid spring chambers of each of the left and right suspension units with the front wheels and the rear wheels through communication control valves; and a roll displacement detection mechanism that detects roll displacement of the vehicle body. A steering wheel angle detection means for detecting the steering wheel angle, and a communication control valve of the communication means are normally opened to allow the fluid springs of each left and right suspension unit to communicate with each other between the front wheels and the rear wheels, When a roll displacement of the vehicle body is detected by the roll displacement detection means, the communication control valve of the communication means is closed, and the supply opening/closing valve of the fluid splash chamber on the compression side of each suspension unit with respect to the roll direction of the vehicle body is closed. A set amount of fluid is supplied to the fluid spring by opening the spring chamber for a set time, and a set amount of fluid is discharged from the fluid spring chamber by opening the discharge on-off valve in the spring chamber for a set time. , suppressing roll displacement of the vehicle body, and after performing control to suppress the roll displacement, opening each communication control of the communication means when the steering wheel angle detected by the steering wheel angle detection means becomes equal to or less than a set value; The suspension device includes a vehicle speed detecting means for detecting vehicle speed, and the roll suppressing means detects the roll displacement of the vehicle body by the roll displacement detecting means, and detects the roll displacement of the vehicle body. After controlling to suppress roll displacement, each communication control valve of the communication means is opened when the vehicle speed detected by the vehicle speed detection means becomes equal to or less than a set value. Electronically controlled suspension device.Brief explanation of the drawings. Fig. 1 is a diagram showing an electronically controlled suspension device according to an embodiment of this invention, Fig. 2 is a flowchart for carrying out body control, and Fig. 3 is a diagram showing vehicle speed - steering wheel angular velocity. It is a diagram showing characteristics. 11a to 11d... Main air spring chamber, 12a to 12d.
... Sub-air spring chamber, 16... Controller, 34...
・Vehicle speed sensor.

Claims (1)

[Scope of utility model registration request] A vehicle speed sensor that detects vehicle speed, and main 1. A suspension unit provided for each wheel that uses both an auxiliary air spring chamber and an auxiliary spring, a pair of connecting pipes connecting the left and right main air spring chambers of the front and rear wheel suspension units, and each suspension unit in this connecting pipe. A communication control valve is installed between the main air spring chambers, a reserve tank that stores compressed air, and an air supply pipe that connects this reserve tank and the main air spring chamber of the suspension unit □. an air supply control valve provided for each suspension unit; and an exhaust control valve provided for each suspension unit interposed in an exhaust pipe connecting the main air spring chamber of each suspension unit and the exhaust pipe. After controlling the opening and closing of the valve, the communication control valve, the air supply control valve, and the exhaust control valve to control the attitude, when the vehicle speed sensor detects that the vehicle speed has become below the reference speed, the communication control is performed. An electronically controlled suspension device comprising: a controller that opens a valve to release attitude control.