JPH0182969U - - Google Patents
Info
- Publication number
- JPH0182969U JPH0182969U JP1987179143U JP17914387U JPH0182969U JP H0182969 U JPH0182969 U JP H0182969U JP 1987179143 U JP1987179143 U JP 1987179143U JP 17914387 U JP17914387 U JP 17914387U JP H0182969 U JPH0182969 U JP H0182969U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- fluid pressure
- brake fluid
- brake
- skid control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000012530 fluid Substances 0.000 claims description 15
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 6
Description
第１図は本考案の全体構成図、第２図は本考案
の一実施例を示すアンチスキツド制御装置の概略
構成図、第３図は第２図中のコントローラ内に記
憶されているプログラムのフローチヤート、第４
図は本考案装置によるブレーキ液圧の経時的変化
図、第５図は本考案装置と従来装置との制動性を
比較するための減速度の経時的変化図、第６図は
従来装置によるブレーキ液圧の経時的変化図であ
る。
６，７……ブレーキ配管、８，８ａ，８ｂ……
モジユレータ、１４……ブレーキペダル、１５…
…ブレーキスイツチ、１７……コントローラ、１
８，１８ａ，１８ｂ……駆動回路、３０，３０ａ
，３０ｂ，３０ｃ，３０ｄ……車輪速度センサ、
６２……算出手段、６３……比較手段、６８……
切換手段、６９……ブレーキ液圧変更込め信号発
生手段、１００……アンチスキツド制御手段、Ｆ
Ｗ，ＲＷ……車輪、Ｔ……ホールド時間、ｔ……
一定時間（第２ステツプ以降の一定の込め時間）
、Ｚ……設定時間、αｔ……第１ステツプの込め
時間。
Fig. 1 is an overall block diagram of the present invention, Fig. 2 is a schematic block diagram of an anti-skid control device showing an embodiment of the present invention, and Fig. 3 is a flowchart of the program stored in the controller in Fig. 2. Chaat, 4th
The figure is a diagram of the change in brake fluid pressure over time using the device of the present invention, Figure 5 is a diagram of the change in deceleration over time to compare the braking performance of the device of the present invention and the conventional device, and Figure 6 is a diagram of the brake fluid pressure with the conventional device. FIG. 3 is a diagram of changes in hydraulic pressure over time. 6, 7... Brake piping, 8, 8a, 8b...
Modulator, 14... Brake pedal, 15...
...Brake switch, 17...Controller, 1
8, 18a, 18b...drive circuit, 30, 30a
, 30b, 30c, 30d...wheel speed sensor,
62...Calculation means, 63...Comparison means, 68...
Switching means, 69...Brake fluid pressure change signal generation means, 100...Anti-skid control means, F
W, RW...Wheel, T...Hold time, t...
Fixed time (fixed loading time after the second step)
, Z... Setting time, αt... First step loading time.
Claims (1)
した速度信号を送出する車輪速度センサと、ブレ
ーキのオンオフを検出するブレーキスイツチと、
ブレーキ配管のブレーキ液圧をそれぞれ制御する
モジユレータと、該各モジユレータを作動させる
駆動信号を送出するそれぞれの駆動回路とを有し
、前記各車輪速度センサからの出力信号に基づき
制動時に前記車輪のロツク傾向を検出し、前記車
輪のロツク傾向を検出した場合には、前記ブレー
キ液圧を設定時間Ｚの間解除するブレーキ液圧解
除信号を送出し、その後、前記ブレーキ液圧をホ
ールド時間Ｔを間にはさんで一定時間ｔ毎にステ
ツプ状に上昇させるブレーキ液圧込め信号を前記
駆動回路に送出するアンチスキツド制御手段を備
え、該アンチスキツド制御手段によるブレーキ液
圧制御により前記車輪のロツクを防ぐアンチスキ
ツド制御装置において、前記ブレーキオフ時の前
記速度信号の変動周波数を算出する算出手段と、
該算出手段からの出力と所定値とを比較し、該出
力が前記所定値以上の場合には、悪路だとして悪
路信号を送出する比較手段と、前記ブレーキ液圧
の第１ステツプの込め時間αｔが、第２ステツプ
以降の一定の込め時間ｔより延長されているブレ
ーキ液圧変更込め信号を発生するブレーキ液圧変
更込め信号発生手段と、該悪路信号を受けた後に
、ブレーキオン信号を受信した場合には、前記ブ
レーキ液圧解除信号送出後の前記ブレーキ液圧込
め信号に代えて、前記ブレーキ液圧変更込め信号
発生手段からの信号を、前記駆動回路に送出する
切換手段とからなるコントローラを具備している
ことを特徴とするアンチスキツド制御装置。 a wheel speed sensor that detects the speed of each wheel of the vehicle and sends a speed signal corresponding to the wheel speed; a brake switch that detects whether the brake is on or off;
It has a modulator that controls the brake fluid pressure of each brake pipe, and a drive circuit that sends a drive signal that operates each modulator, and locks the wheels during braking based on the output signal from each wheel speed sensor. If the wheel lock tendency is detected, a brake fluid pressure release signal is sent to release the brake fluid pressure for a set time Z, and then the brake fluid pressure is held for a set time T. The anti-skid control means includes an anti-skid control means for sending a brake fluid pressure filling signal to the drive circuit to increase the brake fluid pressure in steps at fixed time intervals t, and prevents the wheels from locking by controlling the brake fluid pressure by the anti-skid control means. In the apparatus, a calculation means for calculating a fluctuation frequency of the speed signal when the brake is off;
Comparing means for comparing the output from the calculation means with a predetermined value and, if the output is greater than the predetermined value, determining that the road is rough and sending out a rough road signal; a brake fluid pressure change signal generation means for generating a brake fluid pressure change signal whose time αt is longer than a certain time t from the second step; and a brake on signal after receiving the rough road signal. and switching means for sending a signal from the brake fluid pressure change signal generating means to the drive circuit in place of the brake fluid pressure filling signal after sending the brake fluid pressure release signal. An anti-skid control device characterized by comprising a controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17914387U JPH0536775Y2 (en) | 1987-11-25 | 1987-11-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17914387U JPH0536775Y2 (en) | 1987-11-25 | 1987-11-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0182969U true JPH0182969U (en) | 1989-06-02 |
| JPH0536775Y2 JPH0536775Y2 (en) | 1993-09-17 |
Family
ID=31470723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17914387U Expired - Lifetime JPH0536775Y2 (en) | 1987-11-25 | 1987-11-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0536775Y2 (en) |
-
1987
- 1987-11-25 JP JP17914387U patent/JPH0536775Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0536775Y2 (en) | 1993-09-17 |
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