JPH03275963A - Electronic controller for automobile - Google Patents

Electronic controller for automobile

Info

Publication number
JPH03275963A
JPH03275963A JP2071920A JP7192090A JPH03275963A JP H03275963 A JPH03275963 A JP H03275963A JP 2071920 A JP2071920 A JP 2071920A JP 7192090 A JP7192090 A JP 7192090A JP H03275963 A JPH03275963 A JP H03275963A
Authority
JP
Japan
Prior art keywords
command
output
control unit
electronic equipment
unit
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
Application number
JP2071920A
Other languages
Japanese (ja)
Inventor
Naomi Tomizawa
冨澤 尚己
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.)
Hitachi Unisia Automotive Ltd
Original Assignee
Japan Electronic Control Systems Co 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 Japan Electronic Control Systems Co Ltd filed Critical Japan Electronic Control Systems Co Ltd
Priority to JP2071920A priority Critical patent/JPH03275963A/en
Publication of JPH03275963A publication Critical patent/JPH03275963A/en
Pending legal-status Critical Current

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  • Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

PURPOSE:To prevent an increase in the number of pins of a connector by transmitting an address command and an output command for each kind of electronic equipment from a control unit, and transmitting to electronic equipment corresponding to the address command a driving output corresponding to the output value command so as to control the electronic equipment from the side of a driving step unit. CONSTITUTION:A control unit 1 is connected to a driving step unit 2 via a time-sharing communication means 3 consisting of transmitting and receiving wires TX, RX for transmitting both an address command and an output value command corresponding to each kind of electronic equipment from the control unit 1 in shared time, and a clock signal wire CLK. An extended control means for receiving a command and varying driving output to electronic equipment that corresponds to the command is provided to the driving step unit 2 and receives transmitted commands and judges addresses and the output of a branch output port corresponding to a command is reversed according to judgement by the means. A number of kinds of electronic equipment are thus driven simply by connection of the control unit 1 and the driving step unit 2 to each other through a few of communication wires.

Description

【発明の詳細な説明】 〈産業上の利用分野〉 本発明は、自動車用電子制御装置に関する。[Detailed description of the invention] <Industrial application field> The present invention relates to an electronic control device for a motor vehicle.

〈従来の技術〉 自動車用エンジンの電子制御装置においては、CPU内
蔵の制御ユニットにより、各種の電子機器を集中制御し
ており、制御回路ユニットのケーシング端部に設けられ
た多ビンコネクタと各電子機器との間をハーネスにより
接続している。
<Prior art> In electronic control devices for automobile engines, various electronic devices are centrally controlled by a control unit with a built-in CPU. It is connected to the equipment using a harness.

〈発明が解決しようとする課題〉 ところで、エンジン制御用の制御ユニットの制御項目数
は、増加の一途をたどっており、今後エンジン・オート
トランスミッション一体型ユニット等による総合制御が
実施されるにつれて、さらに制御出力数が増大すること
が考えられる。
<Problems to be Solved by the Invention> By the way, the number of control items of a control unit for engine control continues to increase, and as comprehensive control by an integrated engine/autotransmission unit is implemented in the future, the number of control items will continue to increase. It is conceivable that the number of control outputs will increase.

しかし、コネクタの多ピン(特に100ビン以上)化は
、コネクタサイズで制御ユニットのケーシング外形寸法
がほぼ決まってしまうゆえ、制御ユニットの大型化を招
き、小型化の要求と相反する。
However, increasing the number of pins in the connector (particularly 100 pins or more) causes the control unit to become larger because the outer dimensions of the casing of the control unit are almost determined by the connector size, which conflicts with the demand for miniaturization.

また、多くのハーネスを単一の制御ユニットへ接続する
のは、制御ユニットの取り回し上不便である。
Furthermore, connecting many harnesses to a single control unit is inconvenient in terms of control unit management.

本発明は、このような従来の問題点に鑑み、制御ユニッ
トのコネクタの多ビン化を抑制するも、多数の電子機器
を駆動可能な自動車用電子制御装置を提供することを目
的とする。
SUMMARY OF THE INVENTION In view of these conventional problems, an object of the present invention is to provide an electronic control device for an automobile that can drive a large number of electronic devices while suppressing the increase in the number of connectors of a control unit.

〈課題を解決するための手段〉 このため、本発明は、第1図にボずように、CPLI内
藏の制御ユニ・ノhから複数の電f−機器に対する駆動
出力段を分離して、これを別体の駆動段ユニットとし、
制御ユニットと駆動段ユニニットとを制御ユニットから
時分割に多電子機器に対応するアドレス指令と出力値指
令とを送る時分割通信手段を介して接続し、駆動段ユニ
ットに前記指令を受けて対応する電子機器への駆動出力
を制御Jる拡張側′4Bf段を具備させる構成としたも
のである。
<Means for Solving the Problems> For this reason, the present invention, as shown in FIG. This is a separate drive stage unit,
The control unit and the drive stage unit are connected via a time division communication means that sends address commands and output value commands corresponding to multiple electronic devices from the control unit in a time division manner, and the drive stage unit receives and responds to the commands. This configuration includes an extended stage '4Bf that controls the drive output to the electronic equipment.

〈作用〉 上記の構成においては、駆動段ユニットに接続される複
数の電子機器にそれぞれアドレスを割付けておき、制御
ユニ・ノドから時分割に各電子機器に対応するアドレス
指令と出力値指令とを送る。
<Operation> In the above configuration, addresses are assigned to each of the plurality of electronic devices connected to the drive stage unit, and address commands and output value commands corresponding to each electronic device are sent from the control unit/node in a time-sharing manner. send.

そして、駆動段ユニットの側でアドレス指令に対応する
電子機器へ出力値指令に対応する駆動出力を発して制御
する。このように駆動出力段の拡張を外付は別体のユ;
−ントにより行うことにより、制御ユニット側コネクタ
の多ビン化防止を図る。
Then, on the drive stage unit side, the electronic device corresponding to the address command is controlled by issuing a drive output corresponding to the output value command. In this way, the expansion of the drive output stage is a separate unit;
- By using a connector, it is possible to prevent the connector on the control unit side from becoming multi-bin.

〈実施例〉 以下に本発明の詳細な説明する。<Example> The present invention will be explained in detail below.

第2図は第1の実施例を示している。尚、本例は、制御
する電子機器が例えば排気還流制御弁。
FIG. 2 shows a first embodiment. In this example, the electronic device to be controlled is, for example, an exhaust recirculation control valve.

燃料ポンプ、各種ランプ等であって、制御に高速性が要
求されない場合、すなわち低速の駆動出力段の場合に通
ずる。
This applies to fuel pumps, various lamps, etc., where high-speed control is not required, that is, to low-speed drive output stages.

CPU内藏の制御ユ、゛ニット1から複数の電子機器に
幻する駆動出力段を分離して、これを小5CPU内藏の
別体の駆動段ユニッ)2としである。
The drive output stages appearing in a plurality of electronic devices are separated from the CPU internal control unit 1, and are made into a separate drive stage unit 2 with a small 5 CPU internal system.

制御ユニット1と駆動段ユニット2とは、制御ユニット
1から時分割に各電子機器に対応するアドレス指令と出
力値指令(出力変化指令)とを送る送・受信線TX、R
X及びクロック信号線C1、Kからなる時分割通信手段
3を介して接続しである。
The control unit 1 and the drive stage unit 2 are connected to transmission/reception lines TX and R, which transmit address commands and output value commands (output change commands) corresponding to each electronic device from the control unit 1 in a time-sharing manner.
They are connected via time division communication means 3 consisting of X and clock signal lines C1 and K.

そして、駆動段ユニット2には、アドレス1〜6を割付
けた拡張出力ボートが設けられている。
The drive stage unit 2 is provided with an extended output port to which addresses 1 to 6 are assigned.

そして、駆動段ユニット2に前記指令を受けて対応する
電子機器への駆動出力を変化させる拡張制御手段をラフ
1ウエア的に具備させである。
The drive stage unit 2 is equipped with extended control means that changes the drive output to the corresponding electronic device in response to the above-mentioned command.

すなわち、第3図のフローチャートに示すように、送イ
言を受付け(Sl、)、アドレスを判定しくS2)、こ
れに基づいて分岐して、対応する拡張出力ボートの出力
の反転させる(311〜316)。
That is, as shown in the flowchart of FIG. 3, a message to send is accepted (S1), an address is determined (S2), and based on this, branching is performed to invert the output of the corresponding extended output port (311 to 3). 316).

例えば1.第4図を参照し、T、のタイミングで送信情
報としてアドレス3と立下がりとを指令すると、拡張出
力ボートのうちアドレス3の出力を立下げるのである。
For example 1. Referring to FIG. 4, when address 3 and fall are commanded as transmission information at timing T, the output at address 3 of the extended output boat is caused to fall.

これにより、制御ユニット1と駆動段ユニット2との間
を2〜3本の通信線により接続するのみで、多数(本例
では6本)の電子機器を駆動することができる。
Thereby, a large number (six in this example) of electronic devices can be driven by simply connecting the control unit 1 and the drive stage unit 2 through two to three communication lines.

尚、自動車用エンジンの制御製蓋において、別体の駆動
段ユニットは、エアフローメータに一体に設けるように
するとよい。
In addition, in the control lid for an automobile engine, the separate drive stage unit is preferably provided integrally with the air flow meter.

第5図は第2の実施例を示している。FIG. 5 shows a second embodiment.

駆動出力段が高速性を要求される場合、例えば燃料噴射
及び点火の制御に用いる場合、燃料噴射点火等の制御出
力を別体の駆動段ユニット−・送るうとすると、リアル
タイム性が重要となるため、制御ユニットから別体の駆
動段ユニットへの情報通信を極めて高速を行う必要があ
り、耐ノイズ性。
When the drive output stage is required to be high-speed, for example when used to control fuel injection and ignition, real-time performance is important if the control output for fuel injection and ignition is to be sent to a separate drive stage unit. , Information communication from the control unit to the separate drive stage unit must be extremely fast, and must be noise resistant.

リアルタイム性上困難である。This is difficult due to real-time nature.

そこで、第5図に示すように、燃料噴射制御については
、駆動段ユニット2側に、クランク角センサの基準パル
ス信号REFの発生をトリガとし2て単位パルス信号P
Osのカウントを開始し、所定数(N1)のカウント纒
了時に噴射タイ成ング信号を出力するカウンタ21を設
けている。そして、噴射タイミング信号を受けて、出力
を立上げると共に、計時を開始し、所定時間(Ti)計
時後に出力を立下げることにより、噴射パルス幅を定め
るタイマ22ヲ設け、このタイマ22の出力で燃料噴射
弁を駆動する(第6図参照)。
Therefore, as shown in FIG. 5, for fuel injection control, a unit pulse signal P is sent to the drive stage unit 2 side using the generation of the reference pulse signal REF of the crank angle sensor as a trigger.
A counter 21 is provided which starts counting Os and outputs an injection timing signal when the count reaches a predetermined number (N1). Then, upon receiving the injection timing signal, a timer 22 is provided to determine the injection pulse width by raising the output, starting time measurement, and lowering the output after measuring a predetermined time (Ti). Drive the fuel injection valve (see Figure 6).

また、点火制御については、駆動段ユニット2側に、基
準パルス信号REFの発生をトリガとし7て単位パルス
信号PO8のカウントを開始し、所定数(N2)のカウ
ント終Y時に点火タイミング信号を出力するカウンタ2
3を設けている。そして、点火タイミング信号をトリガ
として単位パルス信号PO3のカウントを開始し、所定
数(N、)のカウント終了時に通電タイミング信号を出
力するカウンタ24を設けている。そして、点火タイミ
ング信号でセットされ、通電タイミング信号でリセット
されるフリップフロップ25を設けて、このフリップフ
ロップの出力で点火コイルのパワートランジスタを駆動
する(第7図参照)、。
Regarding ignition control, the drive stage unit 2 uses the generation of the reference pulse signal REF as a trigger to start counting unit pulse signals PO8, and outputs an ignition timing signal at the end of counting a predetermined number (N2). counter 2
There are 3. A counter 24 is provided which starts counting unit pulse signals PO3 using the ignition timing signal as a trigger and outputs an energization timing signal when counting a predetermined number (N,). A flip-flop 25 is provided which is set by the ignition timing signal and reset by the energization timing signal, and the output of this flip-flop drives the power transistor of the ignition coil (see FIG. 7).

従って、制御ユニットl側からは、時分割通信手段3に
より、これらのカウンタ21.23.24及びタイマ2
2のアドレス情報と、設定値(N+ −N3 。
Therefore, from the control unit l side, these counters 21, 23, 24 and timer 2 are transmitted by the time division communication means 3.
2 address information and setting value (N+ -N3.

Ti)をシリアル通信により送ればよい。Ti) can be sent by serial communication.

これにより、別体の駆動段ユニットでありながら、リア
ルタイム性の高い処理が可能となる。
This makes it possible to perform highly real-time processing even though it is a separate drive stage unit.

〈発明の効果〉 以上説明したように本発明によれば、駆動出力段の拡張
を外付は別体のユニットにより行うことにより、制御ユ
ニット側コネクタの多ビン化防止をしつつ、多数の電子
機器の駆動が可能になるという効果が得られる。
<Effects of the Invention> As explained above, according to the present invention, by expanding the drive output stage using a separate unit for external attachment, it is possible to prevent the connector on the control unit side from having a large number of bins, and to accommodate a large number of electronic The effect is that the device can be driven.

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

第1図は本発明の構成を示すブロック図、第2図は本発
明の第1の実施例を示すシステム図、第3図はソフトウ
ェア構成を示すフローチャート、第4図は制御の様子を
示すタイムチャート、第5図は第2の実施例を示すシス
テム図、第6図及び第7図は制御の様子を示すタイムチ
ャートである。 ■・・・制御ユニット  2・・・駆動段ユニット3・
・・時分割通信手段
Fig. 1 is a block diagram showing the configuration of the present invention, Fig. 2 is a system diagram showing the first embodiment of the invention, Fig. 3 is a flowchart showing the software configuration, and Fig. 4 is a time chart showing the control situation. FIG. 5 is a system diagram showing the second embodiment, and FIGS. 6 and 7 are time charts showing the state of control. ■... Control unit 2... Drive stage unit 3.
・Time division communication means

Claims (1)

【特許請求の範囲】[Claims] CPU内蔵の制御ユニットから複数の電子機器に対する
駆動出力段を分離して、これを別体の駆動段ユニットと
し、制御ユニットと駆動段ユニットとを制御ユニットか
ら時分割に各電子機器に対応するアドレス指令と出力値
指令とを送る時分割通信手段を介して接続し、駆動段ユ
ニットに前記指令を受けて対応する電子機器への駆動出
力を制御する拡張制御手段を具備させたことを特徴とす
る自動車用電子制御装置。
The drive output stage for multiple electronic devices is separated from the control unit with a built-in CPU, and this is made into a separate drive stage unit. The present invention is characterized in that the drive stage unit is equipped with extended control means that is connected via a time division communication means that sends the command and the output value command, and that receives the command and controls the drive output to the corresponding electronic device. Automotive electronic control equipment.
JP2071920A 1990-03-23 1990-03-23 Electronic controller for automobile Pending JPH03275963A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2071920A JPH03275963A (en) 1990-03-23 1990-03-23 Electronic controller for automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2071920A JPH03275963A (en) 1990-03-23 1990-03-23 Electronic controller for automobile

Publications (1)

Publication Number Publication Date
JPH03275963A true JPH03275963A (en) 1991-12-06

Family

ID=13474452

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2071920A Pending JPH03275963A (en) 1990-03-23 1990-03-23 Electronic controller for automobile

Country Status (1)

Country Link
JP (1) JPH03275963A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06312632A (en) * 1993-04-30 1994-11-08 Tatsuno Co Ltd Tank lorry
JP2009507305A (en) * 2005-09-07 2009-02-19 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング Control device having computing device and peripheral components connected to each other via serial multi-wire bus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5981708A (en) * 1982-10-30 1984-05-11 Diesel Kiki Co Ltd Data monitoring device of electronic control type internal-combustion engine apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5981708A (en) * 1982-10-30 1984-05-11 Diesel Kiki Co Ltd Data monitoring device of electronic control type internal-combustion engine apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06312632A (en) * 1993-04-30 1994-11-08 Tatsuno Co Ltd Tank lorry
JP2009507305A (en) * 2005-09-07 2009-02-19 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング Control device having computing device and peripheral components connected to each other via serial multi-wire bus
US8713225B2 (en) 2005-09-07 2014-04-29 Robert Bosch Gmbh Control unit including a computing device and a peripheral module which are interconnected via a serial multiwire bus

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