JPS62195572U

JPS62195572U -

Info

Publication number: JPS62195572U
Application number: JP8437786U
Authority: JP
Priority date: 1986-06-03
Filing date: 1986-06-03
Publication date: 1987-12-12

Description

[Brief explanation of drawings]

第１図は、本考案の全体構成図、第２図は、本
考案の一実施例を示す４輪駆動車用アンチスキツ
ド装置の概略構成図、第３図は、第２図中のコン
トローラ内の制御プログラムのフローチヤート、
第４図、第５図はコントローラ内にメモリされて
いる理想車輪速度の算出線図、第６図は、従来の
アンチスキツド制御と本考案による制御との関係
を示す速度線図、第７図、第８図は後一輪ロツク
が生じる場合の各車輪のスリツプ率の経時的変化
を示す図である。６，７……ブレーキ配管、８，９……モジユレ
ータ、１１，１２……速度センサ、１３……加減
速度センサ、１７……コントローラ、１８，１９
……駆動回路、１００……ロツク検出手段、１０
１……平均速度算出手段、１０２……理想速度算
出手段、１０３……速度差算出手段、１０４……
判定手段、１０５……ブレーキ液圧同時全解除信
号発生手段、１０６……論理回路。 FIG. 1 is an overall configuration diagram of the present invention, FIG. 2 is a schematic configuration diagram of an anti-skid device for a four-wheel drive vehicle showing an embodiment of the present invention, and FIG. control program flowchart,
4 and 5 are calculation diagrams of ideal wheel speeds stored in the controller, FIG. 6 is a speed diagram showing the relationship between conventional anti-skid control and control according to the present invention, and FIG. FIG. 8 is a diagram showing changes over time in the slip rate of each wheel when one rear wheel locks up. 6, 7... Brake piping, 8, 9... Modulator, 11, 12... Speed sensor, 13... Acceleration/deceleration sensor, 17... Controller, 18, 19
... Drive circuit, 100 ... Lock detection means, 10
1... Average speed calculation means, 102... Ideal speed calculation means, 103... Speed difference calculation means, 104...
Judgment means, 105... Brake fluid pressure simultaneous all release signal generation means, 106... Logic circuit.

Claims

[Scope of utility model registration request]

a pair of left and right speed sensors that each send out a speed signal corresponding to the front wheel speed of the four-wheel drive vehicle; an acceleration/deceleration sensor that sends out an acceleration/deceleration signal that corresponds to the acceleration/deceleration of the four-wheel drive vehicle; lock detection means for detecting whether or not the wheels are moving toward lock based on the acceleration/deceleration signal and sending out a lock signal corresponding to the lock state; and a drive signal for operating each modulator based on the lock signal. In an anti-skid device for a four-wheel drive vehicle, the anti-skid device for a four-wheel-drive vehicle has two drive circuits that send out a speed signal, and two modulators that respectively control the brake fluid pressure of the brake pipe connected to the X pipe according to the drive signal. average speed calculation means for calculating the speed and sending out the average speed signal; ideal speed calculation means for calculating the current ideal wheel speed of the front wheels and sending out the ideal speed signal; and the average speed signal and the ideal speed. speed difference calculation means for calculating the difference between the two wheels and the signal and sending out a difference signal; a determination means for determining whether or not the rear wheel has a tendency to lock based on the difference signal and a reference value; When a rear wheel lock tendency signal is output from the brake fluid pressure simultaneous all release signal generating means and the above-mentioned determining means, the brake fluid pressure simultaneous all release signal is generated in place of the above lock signal. An anti-skid device for a four-wheel drive vehicle, comprising a logic circuit that outputs output to the two drive circuits.