JPH03115761A - Engine information reader for internal combustion engine - Google Patents
Engine information reader for internal combustion engineInfo
- Publication number
- JPH03115761A JPH03115761A JP25191489A JP25191489A JPH03115761A JP H03115761 A JPH03115761 A JP H03115761A JP 25191489 A JP25191489 A JP 25191489A JP 25191489 A JP25191489 A JP 25191489A JP H03115761 A JPH03115761 A JP H03115761A
- Authority
- JP
- Japan
- Prior art keywords
- cpu
- engine
- serial
- internal combustion
- outer apparatus
- 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
- 238000002485 combustion reaction Methods 0.000 title claims 4
- 230000006870 function Effects 0.000 claims abstract description 11
- 238000005516 engineering process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はエンジン総合制御におけるエンジン情報読出し
装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an engine information reading device for comprehensive engine control.
従来、エンジン制御におけるエンジン情報読出し装置に
ついては、自動車技術会学術講演会１肪刷集８８１０５
５ （昭６３−５）において論じられている。Conventionally, engine information reading devices for engine control have been described in the Society of Automotive Engineers of Japan, Academic Conference 1, Volume 88105.
5 (Sho 63-5).
上記従来技術は１個のコントローラに２個の独立したマ
イクロプロセッサ（ｃｐｕ）がある場合の通信及び２個
のＣＰＵの内部情報を外部に出力する点について配慮が
されておらず、ＣＰＵの演算情報が見られないという問
題があった。The above conventional technology does not take into consideration communication when one controller has two independent microprocessors (CPUs) and the point of outputting the internal information of the two CPUs to the outside, and the calculation information of the CPUs is not considered. The problem was that I couldn't see it.
本発明は２個の独立したＣＰＵの演算情報を１個のＣＰ
Ｕから出力できるようにするものである。In the present invention, calculation information of two independent CPUs is transferred to one CPU.
This allows output from U.
上記目的を達成するために、２個のＣＰＵ間をシリアル
通信で行い、１個のＣＰＵに接続する外部出力機器から
２個のＣＰＵの内部演算情報を見るようにしたものであ
る。In order to achieve the above object, serial communication is performed between two CPUs, and internal calculation information of the two CPUs can be viewed from an external output device connected to one CPU.
外部出力機器と接続するＣＰＵと他のＣＰＵの区別はプ
ロトコルに識別情報を入れるか、又は識別ピンをハード
ウェア的に設けるなどで区別できるので、互いに独立す
る２個のＣＰＵのアドレスが同じであっても何ら問題は
ない。The CPU connected to an external output device and other CPUs can be distinguished by including identification information in the protocol or by providing an identification pin in hardware, so it is possible to distinguish between two CPUs that are independent of each other and have the same address. There is no problem.
以下１本発明の一実施例を第１図により説明する。エン
ジン総合制御を実現するコントローラ１には、互いに独
立したＣ：ＰＵｌとＣＰＵ２がそれぞれ配置されている
。ＣＰＵ１はエンジン制御機能５を受持ち、ＣＰＵ２は
トルコン制御６やクルーズ制御７を受持つ。ＣＰＵＩと
ＣＰＵ２はシリアル機能８，９を介して、お互いに情報
をやり取りする。そして、ＣＰＵＩには、もう−個のシ
リアル機能１０があって、外部機器１１のシリアル機能
１２と接続されている。An embodiment of the present invention will be described below with reference to FIG. A controller 1 that implements comprehensive engine control includes a C:PUl and a CPU 2 that are independent from each other. The CPU 1 is in charge of an engine control function 5, and the CPU 2 is in charge of a torque converter control 6 and a cruise control 7. The CPU I and the CPU 2 exchange information with each other via serial functions 8 and 9. The CPUI has another serial function 10, which is connected to the serial function 12 of the external device 11.
本発明は外部機器１１と通信するＣＰＵ１を介してＣＰ
Ｕ２の内部演算情報及びメモリの内容を外部機器１１に
出力することにある。In the present invention, the CPU 1 communicates with the external device 11.
The purpose is to output the internal calculation information of U2 and the contents of the memory to the external device 11.
本実施例°によれば、ピンネックを解消すると共に外部
機器をつなぎ変えたりすることがなく、メモリの内容を
チエツクできる効果がある。According to this embodiment, it is possible to eliminate the pin neck problem and to check the contents of the memory without having to change the connection of external equipment.
本発明によれば、ＣＰＵ間にまたがる情報も一画面でチ
エツクできるので、関連あるデータのデバッグが容易に
できる効果がある。According to the present invention, information that spans between CPUs can be checked on a single screen, so there is an effect that related data can be easily debugged.
第１図は本発明の一実施例を示すコマンドローラの構成
図を示す。
１・・・コントローラ、８，９，１０．１２・・・シリ
アル機能。FIG. 1 shows a configuration diagram of a command roller showing an embodiment of the present invention. 1... Controller, 8, 9, 10.12... Serial function.
Claims (1)
シリアル通信で接続する自動車用コントローラにおいて
、上記マイコンの内の１個から別のシリアル通信で外部
機器に接続して、各々のマイコンが管理する記憶素子の
内容を外部機器から読み出すことを特徴とする内燃機関
のエンジン情報読出し装置。 ２、第１項記載の請求範囲において、エンジン制御機能
を統括するマイコンに外部機器を接続してなることを特
徴とする内燃機関のエンジン情報読出し装置。 ３、第１項記載の請求範囲において、少なくとも１個の
マイコンはエンジン制御機能を統括することを特徴とす
る内燃機関のエンジン情報読出し装置。[Claims] 1. In an automobile controller in which a plurality of microcomputers are arranged and each of the microcomputers is connected by serial communication, one of the microcomputers is connected to an external device by another serial communication. An engine information reading device for an internal combustion engine, characterized in that the contents of a storage element managed by each microcomputer are read out from an external device. 2. An engine information reading device for an internal combustion engine according to the scope of claim 1, characterized in that an external device is connected to a microcomputer that controls engine control functions. 3. An engine information reading device for an internal combustion engine according to the scope of claim 1, wherein at least one microcomputer controls an engine control function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25191489A JPH03115761A (en) | 1989-09-29 | 1989-09-29 | Engine information reader for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25191489A JPH03115761A (en) | 1989-09-29 | 1989-09-29 | Engine information reader for internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03115761A true JPH03115761A (en) | 1991-05-16 |
Family
ID=17229842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25191489A Pending JPH03115761A (en) | 1989-09-29 | 1989-09-29 | Engine information reader for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03115761A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5586034A (en) * | 1993-02-09 | 1996-12-17 | Nippondenso Co., Ltd. | Data communication equipment for transferring data |
-
1989
- 1989-09-29 JP JP25191489A patent/JPH03115761A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5586034A (en) * | 1993-02-09 | 1996-12-17 | Nippondenso Co., Ltd. | Data communication equipment for transferring data |
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