JPH037655A - Brake aid device for vehicle - Google Patents
Brake aid device for vehicleInfo
- Publication number
- JPH037655A JPH037655A JP14326889A JP14326889A JPH037655A JP H037655 A JPH037655 A JP H037655A JP 14326889 A JP14326889 A JP 14326889A JP 14326889 A JP14326889 A JP 14326889A JP H037655 A JPH037655 A JP H037655A
- Authority
- JP
- Japan
- Prior art keywords
- brake
- pressure
- valve
- brake pedal
- driver
- 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
- 238000005538 encapsulation Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000881 depressing effect Effects 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、車両用の制動補助装置に係り、特にブレーキ
バルブの圧力不足における不必要な警告を低減できる技
術に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a braking auxiliary device for a vehicle, and particularly to a technique that can reduce unnecessary warnings due to insufficient pressure in a brake valve.
この種の制動補助装置として、マスターシリンダとホイ
ールブレーキとの間に電磁バルブを刈み込み、ブレーキ
ペダルが踏み込まれた際のブレーキ液圧をバルブ内に封
じ込め、ブレーキペダルから足を離した状態においても
制動状態を維持できるシステムが提案されている。As this type of braking auxiliary device, an electromagnetic valve is installed between the master cylinder and the wheel brake, and the brake fluid pressure is contained within the valve when the brake pedal is depressed, and when the brake pedal is released. A system that can maintain a braking state has been proposed.
例えは緩やかな下り坂道において、自家用中型車両を制
動状態に維持するためには、一定の液圧以上で継続的に
バルブ内に封じ込められている必要があった。前記の制
動補助装置では、このような坂道等でのクリープ現象(
いわゆるのろのろ発進)を防止するために、バルブ内に
封じ込め圧力を常時検出して、制動必要圧に満たない場
合にはブザーあるいはランプ等の警告によって運転者に
対してブレーキペダルの踏み込みを促す必要があった。For example, in order to maintain the braking state of a private medium-sized vehicle on a gentle downhill slope, it was necessary for the hydraulic pressure to be continuously contained within the valve at a certain level or higher. The above-mentioned braking auxiliary device prevents the creep phenomenon (
In order to prevent so-called sluggish starts, it is necessary to constantly detect the pressure contained within the valve, and if the pressure is less than the required braking pressure, a warning such as a buzzer or lamp is used to prompt the driver to press the brake pedal. there were.
ところが前記従来技術では、バルブ内の封じ込1
2
め圧力のみを検出していたため、たとえば運転者がブレ
ーキペダル上に足を載せているような場合にも、頻繁に
警告が発せられ、かえって運転者の注意を散漫にさぜ安
全性の低下につながる懸念があった。However, since the above-mentioned conventional technology detects only the confinement pressure inside the valve, a warning is issued frequently even when the driver's foot is on the brake pedal, which may actually cause problems in driving. There were concerns that this could distract people and lead to a decline in safety.
本発明は、前記課題を解決するため車両停止後のブレー
キ踏込によって生じた制動圧力をバルブ内の封じ込めて
制動状態を維持する車両用制動補助装置において1、以
下のような手段とした。In order to solve the above-mentioned problems, the present invention provides a vehicle braking auxiliary device that maintains a braking state by sealing the braking pressure generated by pressing the brake after the vehicle is stopped in a valve, and employs the following means.
すなわち、判断回路1とこれに接続された警告手段2と
を備え、この判断回路1はバルブ内の封じ込め圧力を検
出する月じ込め信号3と、5ブレーキペダル上に運転者
の足が載せられていることを検出するブレーキ信号4と
を人力じ、バルブ内の封じ込め圧力が一定値以下であり
かつブレーキペダル上に運転者の足が載せられていない
場合にのみ前記警告手段2を作動させる車両用制動補助
装置とlノた。That is, the judgment circuit 1 includes a judgment circuit 1 and a warning means 2 connected to the judgment circuit 1, and the judgment circuit 1 receives a confinement signal 3 for detecting the containment pressure in the valve, and a signal 5 for detecting the containment pressure in the valve when the driver's foot is placed on the brake pedal. A vehicle that manually operates a brake signal 4 that detects that the vehicle is running, and activates the warning means 2 only when the containment pressure in the valve is below a certain value and the driver's foot is not placed on the brake pedal. A braking aid and a brake aid.
=3
前記した手段によれは、バルブ内の封じ込め圧力が低下
している場合でも、運転者の足がブレーキペダル上にあ
り、運転者がブレーキペダルの踏み込みを意識している
状態にある場合には警告は発せられない。したがって、
不必要な警告を防止でき、運転者の注意力を運転に対し
て集中させることができる。=3 According to the above-mentioned method, even if the containment pressure inside the valve is low, if the driver's foot is on the brake pedal and the driver is conscious of depressing the brake pedal, No warning will be issued. therefore,
Unnecessary warnings can be prevented and the driver's attention can be focused on driving.
以下、本発明の実施例を第1図および第2図に基づいて
説明する。Embodiments of the present invention will be described below with reference to FIGS. 1 and 2.
第1図は本発明の一実施例である車両用制動補助装置を
示すブロック図、第2図は第1図の判断回路における判
断手順を示すフロー図である。FIG. 1 is a block diagram showing a braking auxiliary device for a vehicle which is an embodiment of the present invention, and FIG. 2 is a flow diagram showing a determination procedure in the determination circuit of FIG.
第1図において、判断回路1はたとえはユニット形式で
E CU (Electoronic Control
Unit)の一部としてROM (Read 0nl
y Memory)化されており、2系統の人力信号に
基づいて、一定条件成立時乞こ出力を行うものである。In FIG. 1, the judgment circuit 1 is, for example, a unit type ECU (Electronic Control
ROM (Read 0nl) as part of
y Memory), and outputs a signal when certain conditions are met based on two systems of human input signals.
警告手段2は、たとえばブザー、ランプあるいはLED
(Light Emitting Diode)等の
聴覚的、4
視覚的な警告を発するものである。The warning means 2 is, for example, a buzzer, a lamp, or an LED.
(Light Emitting Diode) etc., which give an auditory and visual warning.
同図において1、上記判断回路1には、人力信号と(J
で封じ込め信号3とブレーキ信号4とが人力される。こ
の封じ込め信号3はたとえはバルブ内の液圧が制動必要
圧以下である場合に1゛となり、それ以外の場合には′
″0″となる2値化信号である。1 in the same figure, the judgment circuit 1 has a human input signal and (J
The containment signal 3 and brake signal 4 are manually operated. For example, this containment signal 3 becomes 1 when the hydraulic pressure in the valve is below the required braking pressure, and in other cases,
This is a binary signal that becomes "0".
一方のブレーキ信号4はブレーキペダルの位置を検知し
てブレーキペダル上に運転者の足が載置されているとき
には”1″となり、それ以外の場合には′0′”となる
2fi化信号である。なお、前記封じ込め信号3は図示
しない圧力センサからのアナログ値であってもよい。こ
の場合には判断回路1内にA/D変換回路および増幅回
路等を備える必要がある。On the other hand, the brake signal 4 is a 2fi signal that detects the position of the brake pedal and becomes "1" when the driver's foot is placed on the brake pedal, and becomes '0' in other cases. Note that the containment signal 3 may be an analog value from a pressure sensor (not shown). In this case, it is necessary to provide an A/D conversion circuit, an amplifier circuit, etc. in the judgment circuit 1.
第2図の作動手順に先だって、ECUは、車両が停止し
たのを検知して、この停止後1秒以上ブレーキペダルが
踏み込まれた状態となっていると電磁バルブを作動させ
てバルブ内へのブレーキ圧力の封じ込めを行う。これに
よって、運転者がブレーキペダルから足を離した状態と
なっても車両は停止状態を維持する。Prior to the operating procedure shown in Figure 2, the ECU detects that the vehicle has stopped, and if the brake pedal is depressed for more than 1 second after the vehicle has stopped, it activates the electromagnetic valve to release water into the valve. Contain brake pressure. As a result, the vehicle remains stopped even if the driver takes his or her foot off the brake pedal.
この状態において、判断回路1は、第2図に示す処理を
開始する(ステップ201)。判断回路1は、まず電磁
バルブが作動状態、すなわちブレーキ圧の封じ込めを行
っているか否かを判断しく202)、、封じ込めが行わ
れている場合にはバルブ内のブレーキ圧が低下している
か否かを判定する(203)。次に、ブレーキ信号4に
基づいてブレーキペダルがニュートラル位置から移動し
た位置にあるか、すなわちブレーキペダル上に運転者の
足があるか否かを判断しく204)、運転者の足がある
場合には警告手段2への出力指示は行わない。またこの
とき既に警告手段2による警告中である場合には警告の
停止を行う(206)。In this state, the determination circuit 1 starts the process shown in FIG. 2 (step 201). The judgment circuit 1 first judges whether the electromagnetic valve is in an operating state, that is, whether brake pressure is contained (202), and if it is contained, whether the brake pressure in the valve is decreasing or not. (203). Next, based on the brake signal 4, it is determined whether the brake pedal is at a position moved from the neutral position, that is, whether the driver's foot is on the brake pedal (204). does not issue an output instruction to the warning means 2. At this time, if the warning means 2 is already warning, the warning is stopped (206).
さらに、ステップ204において、ブレーキペダル上に
運転者の足がない場合には、運転者はブレーキペダルの
踏み込みを意識していない状態であるから、警告手段2
に対する出力指示を行い、ランプ1、LED、ブザー、
音声等の警告を発する5−
6
(205)。Further, in step 204, if the driver's foot is not on the brake pedal, the driver is not conscious of pressing the brake pedal, so the warning means 2
Give output instructions to lamp 1, LED, buzzer,
5-6 (205) which issues a warning such as a voice.
これによって、本実施例では運転者の足がブレーキペダ
ル上乙こあり、運転者がブレーキペダルの踏み込みを意
識しているような場合には警告を行わないため、不必要
な警告を防止できる。As a result, in this embodiment, if the driver's foot is on the brake pedal and the driver is conscious of depressing the brake pedal, no warning is given, so unnecessary warnings can be prevented.
本発明によれば、車両において不必要な警告を防止でき
、運転者の注意力を運転に対して集中させることができ
る。According to the present invention, unnecessary warnings can be prevented in a vehicle, and the driver's attention can be focused on driving.
第1図は本発明の一実施例である車両用制動補助装置を
示すブロック図、第2図は第1図の判断回路における判
断手11頂を示すフロー図である。
1・・・判断回路、
2・・・警告手段、
3・・・封じ込め信号、
4・・・ブレーキ信号。FIG. 1 is a block diagram showing a braking auxiliary device for a vehicle which is an embodiment of the present invention, and FIG. 2 is a flow diagram showing the top of the judgment hand 11 in the judgment circuit of FIG. 1... Judgment circuit, 2... Warning means, 3... Containment signal, 4... Brake signal.
Claims (1)
力をバルブ内に封じ込めて制動状態を維持する車両用制
動補助装置において、 判断回路1とこれに接続された警告手段2とを備え、こ
の判断回路1はバルブ内の封じ込め圧力を検出する封じ
込め信号3と、ブレーキペダル上に運転者の足が載せら
れていることを意味するブレーキ信号4とを入力し、バ
ルブ内の封じ込め圧力が一定値以下でありかつブレーキ
ペダル上に運転者の足が載せられていない場合にのみ前
記警告手段2を作動させることを特徴とする車両用制動
補助装置。(1) A braking auxiliary device for a vehicle that maintains a braking state by containing the braking pressure generated by pressing the brake after the vehicle has stopped in a valve, comprising a judgment circuit 1 and a warning means 2 connected to the judgment circuit 1, Circuit 1 inputs a containment signal 3 that detects the containment pressure inside the valve and a brake signal 4 that means that the driver's foot is placed on the brake pedal, and when the containment pressure inside the valve is below a certain value. A braking auxiliary device for a vehicle, characterized in that the warning means 2 is activated only when the driver's foot is not placed on the brake pedal.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1143268A JP2842618B2 (en) | 1989-06-06 | 1989-06-06 | Vehicle brake assist device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1143268A JP2842618B2 (en) | 1989-06-06 | 1989-06-06 | Vehicle brake assist device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH037655A true JPH037655A (en) | 1991-01-14 |
JP2842618B2 JP2842618B2 (en) | 1999-01-06 |
Family
ID=15334799
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1143268A Expired - Lifetime JP2842618B2 (en) | 1989-06-06 | 1989-06-06 | Vehicle brake assist device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2842618B2 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57175455A (en) * | 1981-04-24 | 1982-10-28 | Mitsubishi Motors Corp | Informing mechanism of operating condition of braking system for parking |
JPS58168958U (en) * | 1982-05-06 | 1983-11-11 | マツダ株式会社 | Side brake forgotten warning device |
-
1989
- 1989-06-06 JP JP1143268A patent/JP2842618B2/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57175455A (en) * | 1981-04-24 | 1982-10-28 | Mitsubishi Motors Corp | Informing mechanism of operating condition of braking system for parking |
JPS58168958U (en) * | 1982-05-06 | 1983-11-11 | マツダ株式会社 | Side brake forgotten warning device |
Also Published As
Publication number | Publication date |
---|---|
JP2842618B2 (en) | 1999-01-06 |
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