JPS63170151A - Braking force retention controller - Google Patents

Braking force retention controller

Info

Publication number
JPS63170151A
JPS63170151A JP62002857A JP285787A JPS63170151A JP S63170151 A JPS63170151 A JP S63170151A JP 62002857 A JP62002857 A JP 62002857A JP 285787 A JP285787 A JP 285787A JP S63170151 A JPS63170151 A JP S63170151A
Authority
JP
Japan
Prior art keywords
clutch
vehicle
braking force
released
parking brake
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
Application number
JP62002857A
Other languages
Japanese (ja)
Other versions
JPH0562095B2 (en
Inventor
Toshibumi Koshizawa
俊文 越沢
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Isuzu Motors Ltd
Original Assignee
Isuzu Motors Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Isuzu Motors Ltd filed Critical Isuzu Motors Ltd
Priority to JP62002857A priority Critical patent/JPS63170151A/en
Publication of JPS63170151A publication Critical patent/JPS63170151A/en
Publication of JPH0562095B2 publication Critical patent/JPH0562095B2/ja
Granted legal-status Critical Current

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  • Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
  • Regulating Braking Force (AREA)

Abstract

PURPOSE:To select an optimum clutch position at all times as well as to make a smooth start attainable, by installing a sensor means to detect the loading state of a vehicle, and determining an engaging position of the clutch where the retained braking force should be released. CONSTITUTION:During vehicle driving, whether a select lever 17 is in neutral or not from output of a select position switch 8, and whether a parking brake is 30 in operation or not from a parking brake switch 31 as well as whether a car speed is more than the setting value or not from a car speed sensor 16 all are judged in consecutive order at an electronic controller 6. And, when the select lever 17 is not in neutral, the parking brake 30 is released and the car speed is less than the setting value, a map to a released clutch position is selected according to vehicle loading conditions or the like by a loading state detecting switch 22. An accelerator pedal operated variable is made into an argument from this map whereby the released clutch position is determined, then a solenoid valve 9 for a clutch actuator is controlled.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は車両等の制動力保持制御装置に関する。[Detailed description of the invention] (Industrial application field) The present invention relates to a braking force retention control device for vehicles and the like.

(従来の技術) 車両が登板道路上に停止した状態から発進する場合、従
来は運転者が片手でハンドブレーキを操作して車両に制
動力を与えて停止状態を保ち、アクセルペダルを足で踏
込み、クラッチを徐々に継ぎながら、ハンドブレーキを
緩めてゆくという操作が行われていた。このようにブレ
ーキとアクセルとの連けいを保ちながら行われる複雑な
操作が必要とされるために、操作に慣れないといわゆる
エンストや、車両の後退を起すという不便があり、円滑
な発進ができる迄には可成りの熟練が必要であるという
欠点があった。
(Conventional technology) When starting a vehicle from a stopped state on a road, conventionally the driver operated the handbrake with one hand to apply braking force to the vehicle to keep it stationary, and then pressed the accelerator pedal with his foot. The operation involved gradually releasing the handbrake while gradually applying the clutch. Since complex operations are required while maintaining the connection between the brake and accelerator, if you are not used to the operations, you may experience the inconvenience of stalling or the vehicle moving backwards, and it may take some time until you can start smoothly. had the disadvantage of requiring considerable skill.

(発明が解決しようとする問題点) 前記の問題を解決するために、例えば特開昭60−11
719号公報に開示されているような制動力保持装置付
電子自動変速装置が提案されている。該装置は、電子制
御装置によって制御される摩擦クラッチ付同期噛合式自
動変速機を搭載した車両等において、車両の各種の検出
装置からの信号を統括制御して、クラッチ用流体アクチ
ュエータによってクラッチが係合するまで制動力を保持
する様にしたもので、これによって制動力の保持を適切
に制御して、登り坂での発進が熟練を要することなく円
滑に行い得るようにしている。
(Problems to be Solved by the Invention) In order to solve the above-mentioned problems, for example,
An electronic automatic transmission device with a braking force holding device as disclosed in Japanese Patent No. 719 has been proposed. This device is used in vehicles equipped with a synchronized mesh automatic transmission with a friction clutch controlled by an electronic control device, and controls signals from various detection devices in the vehicle to engage the clutch using a clutch fluid actuator. This system maintains the braking force until the vehicle reaches its peak, thereby appropriately controlling the retention of the braking force so that starting on an uphill slope can be performed smoothly without requiring any skill.

然しながら、上記制動力保持装置では、常に一定のクラ
ッチ接合位置で制動用の逆止弁を解除させるようにしで
あるので、車両の積載状態、即ち積車か空車かによって
、制動の解除が早すぎて車両が後退したり、或いは制動
解除が遅れて急発進する等の欠点があった。
However, since the braking force holding device described above is designed to always release the braking check valve at a fixed clutch engagement position, the braking may be released too quickly depending on the loading condition of the vehicle, that is, whether it is loaded or empty. However, there are drawbacks such as the vehicle backing up, or the vehicle suddenly starting due to a delay in releasing the brakes.

本発明は、上記の点に鑑みてなされたもので、運転者が
申告する空積状態、或いは積載状態を検出する手段によ
り検出される空積状態に応じて、制動力を解除するクラ
ッチ接合位置を変更し、これによって常に円滑な発進が
容易に行われるようにした、制動力保持制御装置を提供
することを目的とする。
The present invention has been made in view of the above-mentioned points, and the present invention provides a clutch engagement position at which the braking force is released depending on the empty load state reported by the driver or the empty load state detected by means for detecting the loaded state. It is an object of the present invention to provide a braking force retention control device in which a smooth start is easily performed at all times.

(問題点を解決するための手段) 本発明によれば、車両の積載状態を検出するセンサ手段
と、該センサ手段の検出値に応じて、保持された制動力
が解除されるべき前記クラッチの適切な係合位置を決定
する保合位置決定手段とを具備する制動力保持制御装置
が提供される。
(Means for Solving the Problems) According to the present invention, there is provided a sensor means for detecting the loading state of a vehicle, and a sensor means for detecting a loaded state of a vehicle, and a sensor means for detecting a loaded state of a vehicle, and a sensor means for detecting a loaded state of a vehicle, and a sensor means for detecting a loaded state of a vehicle, and a sensor means for detecting a loaded state of a vehicle, and a sensor means for detecting a loaded state of a vehicle. A braking force retention control device is provided that includes retention position determining means for determining an appropriate engagement position.

(作用) 本発明はその電子制御装置に、ブレーキ、アクセル、セ
レクトレバー、パーキングブレーキ、車速の状態等に関
する信号の他に、特に車両の積載状態を検出した信号が
読込まれ、それに応じて最適なりラッチ位置が選択され
てブレーキが解除されるので、登板路上の発進等におけ
る車両の後退、または急発進等を防止する作用がある。
(Function) In the present invention, in addition to signals related to the state of the brake, accelerator, select lever, parking brake, vehicle speed, etc., signals detecting the loading state of the vehicle are read into the electronic control device, and the optimum control is performed accordingly. Since the latch position is selected and the brake is released, there is an effect of preventing the vehicle from retreating or suddenly starting when starting on the road.

(実施例) 第1図は、本発明の一実施例構成図であり、図中、Aは
ブレーキ作動装置(制動装置)、Bはクラッチ作動装置
、1はブレーキペダル、2はマスターシリンダ、2aは
油圧センサ、22は車両積載状態検出手段、3は制動用
電磁逆止弁装置、3aは逆止弁、3bは切換弁、4はホ
イールシリンダ、5はソレノイドであり、これらで制動
装置Aを構成している。7は流体圧力源、8はタンク、
9はクラッチアクチュエータ用電磁弁、10はクラッチ
アクチュエータ、11は摩擦クラッチであり、これらで
クラッチ作動装置Bを構成している。12は変速機、1
2aは変速機出力軸であり、その出力軸からの出力は差
動歯車14を介して車輪15に伝達される。19はエン
ジンであり、アクセルペダル20の踏込みによってスロ
ットルバルブ19bの開閉を制御してエンジン回転数を
制御する。6は電子制御装置であり、変速機の出力軸側
に設けられた車速センサ16からの出力信号、変速アク
チュエータ13からの出力信号、セレクトレバー17の
セレクト位置スイッチ18からの出力信号、エンジン1
9に設けられたエンジン回転センサ19aからの出力信
号、アクセルペダル20に設けられたアクセルペダルセ
ンサ20aからの出力信号、ブレーキペダル1に設けら
れたブレーキペダルスイッチ1aからの出力信号、パー
キングブレーキ30に設けられたパーキングブレーキス
イッチ31からの出力信号、油圧センサ2aからの出力
信号及び積載状態検出手段22からの出力信号からなる
各種センサからの出力信号、クラッチストロークセンサ
10aからの出力信号を入力して、それらの信号を処理
することにより制御信号を出力し、該制御信号でもって
制動用電磁逆止弁装置3を動作させ、制動装置の制動力
を保持できるように構成している。
(Embodiment) Fig. 1 is a configuration diagram of one embodiment of the present invention, in which A is a brake actuation device (braking device), B is a clutch actuation device, 1 is a brake pedal, 2 is a master cylinder, 2a 22 is an oil pressure sensor, 22 is a vehicle loading state detection means, 3 is an electromagnetic check valve device for braking, 3a is a check valve, 3b is a switching valve, 4 is a wheel cylinder, and 5 is a solenoid. It consists of 7 is a fluid pressure source, 8 is a tank,
9 is a clutch actuator electromagnetic valve, 10 is a clutch actuator, and 11 is a friction clutch, which constitute a clutch actuating device B. 12 is a transmission, 1
2a is a transmission output shaft, and the output from the output shaft is transmitted to wheels 15 via differential gear 14. Reference numeral 19 denotes an engine, which controls opening and closing of a throttle valve 19b by pressing an accelerator pedal 20 to control the engine speed. 6 is an electronic control device, which includes an output signal from a vehicle speed sensor 16 provided on the output shaft side of the transmission, an output signal from the shift actuator 13, an output signal from the select position switch 18 of the select lever 17, and the engine 1.
9, an output signal from the accelerator pedal sensor 20a provided on the accelerator pedal 20, an output signal from the brake pedal switch 1a provided on the brake pedal 1, and an output signal from the parking brake 30. Output signals from various sensors including an output signal from the provided parking brake switch 31, an output signal from the oil pressure sensor 2a, and an output signal from the loading state detection means 22, and an output signal from the clutch stroke sensor 10a are inputted. By processing these signals, a control signal is output, and the braking electromagnetic check valve device 3 is operated using the control signal, so that the braking force of the braking device can be maintained.

なお、前記車両積載状態検出手段22は、水晶、セラミ
ック等の圧電素子を応用したもの、或いはスプリング方
式のセンサでもよく、または、歪計方式のセンサを使用
してもよい。
The vehicle loading state detection means 22 may be a piezoelectric element made of crystal or ceramic, a spring type sensor, or a strain meter type sensor.

第2図は本発明の他の実施例として、空気圧制御を用い
た大型車両に適用した構成図であり、第1図と同一のも
のは同一の記号で示してあり、ブレーキ作動装置A内の
構成において次の点が相違する。即ち、第1図の実施例
におけるマスターシリンダ2を欠く代りに、踏込量検出
器1b、エアタンク40、エアマスタ41が設けられ、
ブレーキペダル1に付属した踏込量検出器1bから出発
して、エアタンク40、エアマスタ41を経てホイール
シリンダ4に到る空気圧制御経路が設けられている。
FIG. 2 is a configuration diagram of another embodiment of the present invention applied to a large vehicle using pneumatic control. Components that are the same as those in FIG. 1 are indicated by the same symbols. The following points are different in the configuration. That is, instead of the master cylinder 2 in the embodiment shown in FIG. 1, a depression amount detector 1b, an air tank 40, and an air master 41 are provided.
An air pressure control path is provided that starts from a depression amount detector 1b attached to the brake pedal 1, passes through an air tank 40 and an air master 41, and reaches the wheel cylinder 4.

第3図は制御ステップを示すフローチャートで、第4図
はブレーキの解除されるクラッチの位置(以下、「解除
クラッチ位置」と称する)CLTiの変化を示すマツプ
で、積車か空車かによって差違のあることが解る。
Fig. 3 is a flowchart showing the control steps, and Fig. 4 is a map showing changes in the position of the clutch at which the brake is released (hereinafter referred to as the "released clutch position") CLTi, with differences depending on whether the car is loaded or empty. I understand something.

本発明の制御ステップを第3図のフローチャート及び第
4図に基づいて説明すると、まず、車速信号、セレクト
レバー信号、パーキングブレーキ信号、クラッチストロ
ーク、アクセル踏込量、および積載量が、それぞれ車速
センサ16、セレクト位置スイッチ18、パーキングブ
レーキスイッチ31、アクセルペダルセンサ20a1積
載状態検出スイツチ(またはセンサ)22から読込まれ
(ステップミルステップe′)、次に現ギヤ段が変速機
アクチュエータ13から認識される(ステップf)。
The control steps of the present invention will be explained based on the flowchart of FIG. 3 and FIG. , the select position switch 18, the parking brake switch 31, the accelerator pedal sensor 20a1, and the loading state detection switch (or sensor) 22 (step mill step e'), and then the current gear position is recognized from the transmission actuator 13 ( Step f).

次にセレクトレバー17がニュートラル(=O)か否か
(ステップg)、また、パーキングブレーキ30が作動
中か否か(ステップh)、更に車速が設定値(SPDI
)以上か否かが順次判断される(ステップi)。
Next, check whether the select lever 17 is in neutral (=O) (step g), whether the parking brake 30 is operating (step h), and further check whether the vehicle speed is at the set value (SPDI
) or more is sequentially determined (step i).

セレクトレバー17がニュートラルではなく、パーキン
グブレーキ30が解除されており、車速が設定値5PD
I以下の場合に、現ギヤ段及び車速積載状況に応じた制
動装置の解除クラッチ位置に対するマツプが選択され(
ステップj)、このマツプよりアクセルペダル踏込量を
引数にして解除クラッチ位置が決定される(ステップk
)。
The select lever 17 is not in neutral, the parking brake 30 is released, and the vehicle speed is at the set value of 5PD.
In the case of I or less, a map for the release clutch position of the braking device according to the current gear and vehicle speed loading situation is selected (
Step j), from this map, the release clutch position is determined using the accelerator pedal depression amount as an argument (step k
).

次に、摩擦クラッチ11の位置CLTが前記説明の第4
図の解除クラッチ位置CLTiより後側にあるか否かが
判断される(ステップJ:L)、、解除クラッチ位置C
LTiより接でない場合に、制動装置Aはそのまま制動
力保持状態に維持される(ステップm)。一方クラッチ
11の係合位置CLTが解除クラッチ位置CLTiより
も後側の時、或いはステップgにおいてセレクトレバー
17がニュートラルの時、或いはステップhにおいてパ
ーキングブレーキ30が作動中のとき、或いは、車速が
設定値5PDI以上の時、何れも制動力は解除される(
ステップn)。また摩擦クラッチ11の接操作は、電子
制御装置からの所定の信号によって、自動釣に行われる
ことになる。
Next, the position CLT of the friction clutch 11 is set to the fourth position CLT in the above description.
It is determined whether the position is on the rear side of the released clutch position CLTi in the figure (step J:L),, the released clutch position C
If LTi is not in contact, the braking device A is maintained in the braking force holding state (step m). On the other hand, when the engagement position CLT of the clutch 11 is rearward than the disengagement clutch position CLTi, or when the select lever 17 is in neutral in step g, or when the parking brake 30 is operating in step h, or when the vehicle speed is set When the value is 5 PDI or more, the braking force is released (
Step n). Further, the engagement operation of the friction clutch 11 is performed automatically in response to a predetermined signal from the electronic control device.

(発明の効果) 前記のとおり、本発明はその電子制御装置の作用により
、先ずブレーキ、アクセル等に関する各信号、特に車両
積載状態を検出した信号が読込まれた上で、セレクトレ
バー、パーキングブレーキ、車速の状態に応じて、最適
なりラッチ位置が選択されてブレーキが解除されるので
、登板路上の発進等においても車両の後退、または急発
進等を十分に防止することがで診る。
(Effects of the Invention) As described above, the electronic control device of the present invention first reads signals related to brakes, accelerators, etc., especially signals detecting the vehicle loading state, and then operates the select lever, parking brake, etc. Since the optimum latch position is selected and the brake is released depending on the vehicle speed, it is possible to sufficiently prevent the vehicle from backing up or starting suddenly, even when starting on a road.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の一実施例を示す構成図、第2図は他の
実施例を示す構成図、第3図は制動力保持操作を説明す
るためのフローチャート、第4図は、車両積載状態(空
車、積車)に応じて解除クラッチ位置の相違を示すマツ
プの一例である。 6・・・電子制御装置、9・・・クラッチアクチュエー
タ用電磁弁、10・・・クラッチアクチュエータ、22
・・・車両積載状態検出手段。
Fig. 1 is a block diagram showing one embodiment of the present invention, Fig. 2 is a block diagram showing another embodiment, Fig. 3 is a flowchart for explaining the braking force holding operation, and Fig. 4 is a diagram showing the vehicle loading. This is an example of a map showing differences in release clutch positions depending on the state (empty, loaded). 6... Electronic control device, 9... Solenoid valve for clutch actuator, 10... Clutch actuator, 22
...Vehicle loading state detection means.

Claims (2)

【特許請求の範囲】[Claims] (1)クラッチの係合状態に同期して制動力を保持制御
する制動力保持制御装置において、車両の積載状態を検
出するセンサ手段と、該センサ手段の検出値に応じて保
持された制動力が解除されるべき前記クラッチの係合位
置を決定する係合位置決定手段とを具備したことを特徴
とする制動力保持制御装置。
(1) A braking force retention control device that maintains and controls the braking force in synchronization with the engagement state of the clutch, which includes a sensor means for detecting the loading state of the vehicle, and a braking force that is maintained according to the detected value of the sensor means. A braking force retention control device comprising: engagement position determining means for determining an engagement position of the clutch at which the clutch is to be released.
(2)前記係合位置決定手段が、クラッチを係合するギ
ヤ段に対応して選択されることを特徴とする特許請求の
範囲第(1)項に記載の制動力保持制御装置。
(2) The braking force retention control device according to claim (1), wherein the engagement position determining means is selected in accordance with the gear position in which the clutch is to be engaged.
JP62002857A 1987-01-09 1987-01-09 Braking force retention controller Granted JPS63170151A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62002857A JPS63170151A (en) 1987-01-09 1987-01-09 Braking force retention controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62002857A JPS63170151A (en) 1987-01-09 1987-01-09 Braking force retention controller

Publications (2)

Publication Number Publication Date
JPS63170151A true JPS63170151A (en) 1988-07-14
JPH0562095B2 JPH0562095B2 (en) 1993-09-07

Family

ID=11541053

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62002857A Granted JPS63170151A (en) 1987-01-09 1987-01-09 Braking force retention controller

Country Status (1)

Country Link
JP (1) JPS63170151A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2643596A1 (en) * 1989-02-28 1990-08-31 Valeo Device for controlling an electronic clutch from the hand brake

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5760923A (en) * 1980-03-22 1982-04-13 Nippon Air Brake Co Ltd Method of controlling braking force at starting on upward slope
JPS60189665A (en) * 1984-03-08 1985-09-27 Nippon Denso Co Ltd Side brake releasing device for vehicles

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5760923A (en) * 1980-03-22 1982-04-13 Nippon Air Brake Co Ltd Method of controlling braking force at starting on upward slope
JPS60189665A (en) * 1984-03-08 1985-09-27 Nippon Denso Co Ltd Side brake releasing device for vehicles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2643596A1 (en) * 1989-02-28 1990-08-31 Valeo Device for controlling an electronic clutch from the hand brake

Also Published As

Publication number Publication date
JPH0562095B2 (en) 1993-09-07

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