JPS6164568A - Release of holded brake pressure in brake system for car - Google Patents
Release of holded brake pressure in brake system for carInfo
- Publication number
- JPS6164568A JPS6164568A JP18509984A JP18509984A JPS6164568A JP S6164568 A JPS6164568 A JP S6164568A JP 18509984 A JP18509984 A JP 18509984A JP 18509984 A JP18509984 A JP 18509984A JP S6164568 A JPS6164568 A JP S6164568A
- Authority
- JP
- Japan
- Prior art keywords
- brake
- vehicle
- car
- brake pressure
- pressure
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
- B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
- B60T11/103—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic in combination with other control devices
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は、ブレーキ圧保持を具有した車両における保持
ブレーキ圧の解放方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a method for releasing brake pressure held in a vehicle equipped with brake pressure holding.
従来より、制動によシ停止した車両の自動的な制動状態
の維持のために、ブレーキ装置内のブレーキ油圧を次の
車両発進操作まで保持させる装置、例えばオートストッ
プパルプ等のパルプをｆｔｒ装置が提案されている。Conventionally, in order to automatically maintain the braking state of a vehicle that has stopped due to braking, an FTR device has been proposed that maintains the brake oil pressure in the brake device until the next vehicle starting operation, such as an auto-stop pulp. has been done.
ところで、かかる装置においては、保持したブレーキ圧
を次の車両発進時に解放させる方式として、一般にアク
セルペダルへの路下あるいはクラ、チの接続を、その車
両発進の検出要素とするものが普通であるが、実際の車
両操作においては、半クラ、子状態での操作、クラ、チ
非接続状態でのエンジン空ぶかし等が行なわれる場合も
あ如、これらにより保持ブレーキ圧が常に解放されると
する、状況によっては望ましくないことがある。By the way, in such devices, in order to release the held brake pressure when the next vehicle starts, it is common to use a road or clutch connection to the accelerator pedal as the element for detecting the start of the vehicle. However, in actual vehicle operation, there are cases where the engine is revved up while the brake is partially engaged, the brake is not engaged, the brake is not engaged, etc., and the holding brake pressure is constantly released. This may be undesirable depending on the situation.
例えば坂道停止中の車両につき前記のようなことがある
と、車両の坂道ずシ落ちを招く虞れがある。For example, if the above happens with a vehicle stopped on a slope, there is a risk that the vehicle will fall off the slope.
本発明はかかる観点からなされたものであり、保持ブレ
ーキ圧の解放は、実際の車両発進操作に確実に対応して
行なわれるようにした方法の提供を目的とする。The present invention has been made from this point of view, and an object of the present invention is to provide a method in which the holding brake pressure is released in a manner that reliably corresponds to an actual vehicle starting operation.
而してかかる目的を達成するためになされた本発明の要
旨とするところは、車両停止時においてブレーキ装置内
のブレーキ油圧を次の車両発進まで保持するブレーキ圧
保持装置を具有した車両において、前記車両発進時にお
ける保持ブレーキ圧の解放は、車輪に作用する一定値の
回転トルクの検出と、アクセルペダルの踏下検出との論
理積に基づいて行なうことを特徴とする車両ブレーキ系
における保持ブレーキ圧の解放方法にある。The gist of the present invention, which has been made to achieve such an object, is to provide a vehicle equipped with a brake pressure holding device that holds the brake oil pressure in the brake device when the vehicle is stopped until the next vehicle starts. The held brake pressure in a vehicle brake system is characterized in that the held brake pressure is released when the vehicle starts based on the logical product of the detection of a constant value of rotational torque acting on the wheels and the detection of depression of the accelerator pedal. It is in the way of release.
前記における車輪に作用する回転トルク検出は、例えば
クラッチ後段に位置するプロペラシャフトの回転トルク
を検出する他、ブレーキ装置においてブレーキトルクを
受圧する支承部の若干の変形を検出する間接的方法によ
ってもよい。The detection of the rotational torque acting on the wheels in the above may be performed, for example, by detecting the rotational torque of a propeller shaft located downstream of the clutch, or by an indirect method of detecting slight deformation of a bearing that receives brake torque in a brake device. .
図面は本発明方法を適用したＦ’Ｒ型車両のブレーキ系
構成概要を示したものであり、図において１．２，３．
４は車輪、５，６，７．８は夫々の車輪に装着されたブ
レーキ装置を示しており、このブレーキ装置はドラム型
、ディスク型いずれのものでもよい。そしてこれらのブ
レーキ装置はマスクシリンダ９゛からの油圧に達経路１
０に接続されていると共に、途中にブレーキ圧保持装置
としての常開型の電磁式開閉１１が介設されている。１
２はマスクシリンダに連結されたブレーキペダルである
。The drawing shows an outline of the brake system configuration of an F'R type vehicle to which the method of the present invention is applied, and 1.2, 3.
Reference numeral 4 indicates wheels, and reference numerals 5, 6, and 7.8 indicate brake devices attached to the respective wheels, and these brake devices may be of either a drum type or a disc type. These brake devices reach the hydraulic pressure from the mask cylinder 9 through path 1.
0, and a normally open electromagnetic switch 11 as a brake pressure holding device is interposed in the middle. 1
2 is a brake pedal connected to the mask cylinder.
１３はアクセルペダル、１４は後輪車軸のディファレン
シャフルギア１５に図示しないミッションカラの回転ト
ルクを伝えるプロペラシャフトでアリ、このプロペラシ
ャフト１４にはトルクゲージ１６が取付けられている。13 is an accelerator pedal, and 14 is a propeller shaft that transmits rotational torque of a mission collar (not shown) to a differential gear 15 of the rear wheel axle.A torque gauge 16 is attached to this propeller shaft 14.
１７は片側前輪２のブレーキ装置のブレーキトルク受圧
構造に取付けられた歪ゲージであり、ブレーキ装置に対
して車輪から与えられるブレーキトルクを計測するため
のものである。A strain gauge 17 is attached to the brake torque receiving structure of the brake device of the front wheel 2 on one side, and is used to measure the brake torque applied from the wheel to the brake device.
１８は電磁開閉弁１１の制御回路を示しており、この制
御回路には、アクセルペダル１３．ブレーキペダル１２
の路下信号ａ、ｂが入力されると共に、前記トルクゲー
ジ１６からの検出トルク信号ｃ１および歪ゲージ１７か
らの検出歪信号ｄが夫夫人力される。Reference numeral 18 indicates a control circuit for the electromagnetic on-off valve 11, and this control circuit includes an accelerator pedal 13. brake pedal 12
The road signals a and b are inputted, and the detected torque signal c1 from the torque gauge 16 and the detected strain signal d from the strain gauge 17 are also inputted.
そして、ブレーキペダル１２からの路下信号すの入力と
、図示しない車輪回転の停止を検出するセンサからの信
号入力によシ、電磁開閉弁１１のモードを閉路状態に切
換える。したがって各車輪ブレーキ装置５，６，７．８
のブレーキ油圧は、その戻シが阻止され、停止した車両
のブレーキ力はそのまま維持される。Then, the mode of the electromagnetic on-off valve 11 is switched to the closed state in response to a road signal input from the brake pedal 12 and a signal input from a sensor (not shown) that detects the stoppage of wheel rotation. Therefore, each wheel brake device 5, 6, 7.8
The brake hydraulic pressure is prevented from returning, and the braking force of the stopped vehicle is maintained as it is.
次に車両発進時におけるブレーキ油圧の解放操作につい
て述べると、この場合、通常はクラッチの接続、アクセ
ルペダルの路下という一連の動作（所謂オートマチック
車では単にアクセルペダルの路下）が行なわれる。そし
てこれにより制御回路１８にはトルクデージ１６からの
信号Ｃ１歪ｒ−ジ１７からの信号ｄ１およびアクセル−
Ｊ！、／ル１３からの信号ａが夫々入力され、これら信
号によシ車両が確実に発進できる状態となったときに、
前記信号・の出力が停止されて電磁開閉弁１１は通常の
開モードに復帰され、ブレーキ装置５，６゜／ｒ％）
７．８の油圧はマスクシリンダ側に戻される。Next, we will discuss the brake hydraulic pressure release operation when starting the vehicle. In this case, a series of operations is normally performed, including engagement of the clutch and release of the accelerator pedal (in the case of so-called automatic vehicles, simply release of the accelerator pedal). As a result, the control circuit 18 receives the signal C1 from the torque gauge 16, the distortion r signal from the torque gauge 16, the signal d1 from the torque gauge 17, and the accelerator pedal.
J! , / signal a from 13 is input, and when the vehicle is in a state where it is possible to start the vehicle reliably according to these signals,
The output of the signal is stopped, the electromagnetic on-off valve 11 is returned to the normal open mode, and the hydraulic pressure of the brake device 5,6°/r%) 7.8 is returned to the mask cylinder side.
ここで車両が確実に発進できる状態とは、例えば歪ゲー
ジ１７によって検出される応力が一定値を越えて、車輪
に対する前進方向の回転力が車両前進に必要表程度にな
ったことを基準とすればよい。Here, the state in which the vehicle can start reliably is defined as, for example, when the stress detected by the strain gauge 17 exceeds a certain value and the rotational force in the forward direction on the wheels has reached the level required for the vehicle to move forward. Bye.
このようにすれば、平坦路面は勿論のこと、登り坂に車
両が停止してｈる場合にも、保持ブレーキ圧の解除と車
両の発進が好ましいタイミング関係で行なわれるため、
従来のような登り坂での発進時に車両のず如落ちを招く
こともなく、安全かつ確実な車両発進制御が確保できる
効果がある。In this way, not only on a flat road surface but also when the vehicle is stopped on an uphill slope, the holding brake pressure is released and the vehicle starts at a favorable timing.
This has the effect of ensuring safe and reliable vehicle start control without causing the vehicle to fall when starting on an uphill slope as in the conventional case.
なお、本発明は前記実施例のものに限定されるものでは
なく、様々なブレーキ油圧保持装置と組合せできるし、
また車両の下）坂停止時での発進に際しては、自重によ
る慣性発進が行なわれるため、前記した制御方式を解除
することが好ましい。このため例えば所謂水銀スイッチ
を用いて車両の下如坂停車状態を検知してこれを行なう
ようにすればよい。Note that the present invention is not limited to the embodiments described above, and can be combined with various brake oil pressure holding devices.
Furthermore, when starting the vehicle when it is stopped on a hill, inertia starting due to its own weight is performed, so it is preferable to cancel the above-mentioned control method. For this purpose, for example, a so-called mercury switch may be used to detect the state where the vehicle is stopped on a downhill slope.
以上述べた如く、本発明によれば車両の発進制御が、実
際の車両発進の動きと確実に合致して保持ブレーキ圧を
解除するものとなるため、登り坂発進時の車両すり落ち
を生ずることもなく、その効果は極めて大なるものであ
る。As described above, according to the present invention, the vehicle starting control reliably releases the holding brake pressure in accordance with the actual movement of the vehicle starting, thereby preventing the vehicle from slipping when starting uphill. No, the effect is extremely large.
面図は本発明方法を実現適用した車両ブレーキ系の構成
概要図を示すものである。
１．２，３．４：車輪、
５．６，７，８ニブレーキ装置、
９：マスクシリンダ、
１０ニブレーキ油圧伝達系、
１１：電磁開閉弁、 １２：ｆレーキペダル、１３
：アクセルペダル、１４：プロペラシャフト、１５：デ
ィファレンシャルギア、
１６：トルクダージ、 １７：歪ｒ−ジ、１８：制御
回路。The top view shows a schematic diagram of the configuration of a vehicle brake system to which the method of the present invention is applied. 1.2, 3.4: Wheels, 5.6, 7, 8 Brake device, 9: Mask cylinder, 10 Brake hydraulic transmission system, 11: Electromagnetic on/off valve, 12: F rake pedal, 13
: accelerator pedal, 14: propeller shaft, 15: differential gear, 16: torque dirge, 17: distortion r-ge, 18: control circuit.
Claims (1)
の車両発進まで保持するブレーキ圧保持装置を具有した
車両において、前記車両発進時における保持ブレーキ圧
の解放は、車輪に作用する一定値の回転トルクの検出と
、アクセルペダルの踏下検出との論理積に基づいて行な
うことを特徴とする車両ブレーキ系における保持ブレー
キ圧の解放方法。In a vehicle equipped with a brake pressure holding device that holds the brake hydraulic pressure in the brake device until the next vehicle starts when the vehicle is stopped, the release of the held brake pressure when the vehicle starts is done by reducing the rotational torque of a constant value acting on the wheels. A method for releasing a brake pressure held in a vehicle brake system, characterized in that the method is performed based on a logical product of detection and detection of depression of an accelerator pedal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18509984A JPS6164568A (en) | 1984-09-04 | 1984-09-04 | Release of holded brake pressure in brake system for car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18509984A JPS6164568A (en) | 1984-09-04 | 1984-09-04 | Release of holded brake pressure in brake system for car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6164568A true JPS6164568A (en) | 1986-04-02 |
Family
ID=16164830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18509984A Pending JPS6164568A (en) | 1984-09-04 | 1984-09-04 | Release of holded brake pressure in brake system for car |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6164568A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4923170A (en) * | 1972-06-27 | 1974-03-01 | ||
| JPS5453423A (en) * | 1977-09-14 | 1979-04-26 | Fujitsu Ten Ltd | Device for preventing vehicle from reversing |
-
1984
- 1984-09-04 JP JP18509984A patent/JPS6164568A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4923170A (en) * | 1972-06-27 | 1974-03-01 | ||
| JPS5453423A (en) * | 1977-09-14 | 1979-04-26 | Fujitsu Ten Ltd | Device for preventing vehicle from reversing |
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