JPS6445514U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a block diagram illustrating the basic configuration of the present invention, FIG. 2 is a schematic configuration diagram of an electronically controlled suspension device as an embodiment of the present invention, and FIG. 3 is a pneumatic circuit diagram of this embodiment. FIG. 4 is a block diagram showing the configuration of the electrical system of this embodiment, FIGS. 5 to 8 are flowcharts showing an example of a control routine performed in the control circuit of this embodiment, and FIG. 9 is a steering angle, A graph showing the relationship between lateral acceleration, control signal, vehicle height, and time; FIG. 10 is a graph showing the relationship between steering angle difference and vehicle speed using acceleration as a parameter;
Figure 11 is a graph showing the relationship between estimated lateral acceleration and vehicle height correction amount, Figure 12 is a graph showing the relationship between discharge change pressure and vehicle height correction amount, and Figure 13 is suction change pressure and vehicle height correction amount. Graph showing the relationship with quantity, 1st
Figure 4 is a graph showing the relationship between pressure reduction time and high pressure reserve tank pressure/main gas indoor pressure, Figure 15 is a graph showing the relationship between pressure increase time and main gas indoor pressure/low pressure reserve tank pressure, and Figure 16 is a graph showing the relationship between pressure increase time and main gas indoor pressure/low pressure reserve tank pressure. FIG. 17 is a graph showing the relationship between the lateral acceleration and the target displacement amount, FIG. 17 is a graph showing the relationship between the drive duty ratio and the correction amount, and FIG. 18 is an air circuit diagram as another embodiment. 2FL, 2FR, 2RL, 2RR... Gas spring, 28, 28a, 32, 32a... High pressure reserve tank, 34, 36, 50, 52, 54, 56,
70, 72...pressure sensor, 62, 62a, 68
, 68a...Low pressure reserve tank, 100...Electronic control circuit.

Claims (1)

[Scope of Claim for Utility Model Registration] A gas spring of a suspension provided corresponding to a wheel of a vehicle and a reserve tank are communicated with each other by means of a gas supply/discharge means to supply and discharge gas in the gas spring, An electronically controlled suspension device that prevents roll, comprising: steering angle detection means for detecting a steering angle of a steered wheel; vehicle speed detection means for detecting a running speed of a vehicle; a steering angle difference detection means for detecting the angular difference between the maximum value and the minimum value of the steering angle; and based on the angular difference detected by the steering angle difference detection means and the traveling speed detected by the vehicle speed detection means, an estimated acceleration calculation means for calculating a predetermined estimated lateral acceleration; and a predetermined control amount of the gas supply/exhaust means according to the estimated lateral acceleration detected by the estimated acceleration calculation means; An electronically controlled suspension device comprising: supply/discharge control means for controlling the gas supply/discharge means according to the control amount.