JPS6275048A - Throttle controller for vehicle - Google Patents

Throttle controller for vehicle

Info

Publication number
JPS6275048A
JPS6275048A JP21234085A JP21234085A JPS6275048A JP S6275048 A JPS6275048 A JP S6275048A JP 21234085 A JP21234085 A JP 21234085A JP 21234085 A JP21234085 A JP 21234085A JP S6275048 A JPS6275048 A JP S6275048A
Authority
JP
Japan
Prior art keywords
signal
throttle
microcomputer
control signal
throttle control
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
JP21234085A
Other languages
Japanese (ja)
Inventor
Teruji Sekozawa
瀬古沢　照治
Masao Adachi
足立　正雄
Makoto Shiotani
塩谷　真
Seiju Funabashi
船橋　誠壽
Mikihiko Onari
大成　幹彦
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 Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP21234085A priority Critical patent/JPS6275048A/en
Publication of JPS6275048A publication Critical patent/JPS6275048A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/60—Jamming involving special techniques
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/20—Countermeasures against jamming
    • H04K3/22—Countermeasures against jamming including jamming detection and monitoring
    • H04K3/224—Countermeasures against jamming including jamming detection and monitoring with countermeasures at transmission and/or reception of the jammed signal, e.g. stopping operation of transmitter or receiver, nulling or enhancing transmitted power in direction of or at frequency of jammer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K2203/00—Jamming of communication; Countermeasures
    • H04K2203/10—Jamming or countermeasure used for a particular application
    • H04K2203/22—Jamming or countermeasure used for a particular application for communication related to vehicles

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

PURPOSE:To travel a vehicle safely even if there is electromagnetic jamming or high frequency induction by producing an accelerator operating signal directly if the throttle control signal from a microcomputer is not within normal operation allowable range. CONSTITUTION:A potentiometer 8 for detecting the operating amount of a throttle 7 will feed voltage signals 9 to a microcomputer 11 and a throttle servo controller 5. The microcomputer 11 will A/D convert the signal 9 to produce an accelerator operating amount and to provide a throttle control signal 10 for controlling the throttle angle to achieve desired operationability to the throttle servo controller 5. A level shift circuit in the throttle servo controller 5 will provide a normal operation allowable range for the signal 9 to compare with the allowable range of the signal 10 in a constant voltage comparator, and if the signal 10 is not within the allowable range, the signal 9 is fed from a selection circuit to a servo mechanism.

Description

【発明の詳細な説明】 〔発明の利用分野〕 本発明は自動車等のエンジン制御に係り、特に電磁妨害
などにより電子制御機器の非常時に好適なスロットル制
御に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to engine control for automobiles and the like, and particularly to throttle control suitable for emergencies of electronic control equipment due to electromagnetic interference or the like.

〔発明の背景〕[Background of the invention]

従来の装置は、自動車技術’８４　ＶｏＲ３８，Ｈａ２
、ｐ１６９に記載のようにアクセルペダルとスロットル
を直接連動させず、スロットルを電子制御することによ
りエンジンの動作状態なども任意に制御することができ
るようになった。しかし。The conventional device is Automotive Technology '84 VoR38, Ha2
, p. 169, it is now possible to control the operating state of the engine as desired by electronically controlling the throttle instead of directly interlocking the accelerator pedal and throttle. but.

電磁妨害あるいは高周波誘導に関する対策については配
慮されていなかった。No consideration was given to measures against electromagnetic interference or high frequency induction.

〔発明の目的〕[Purpose of the invention]

本発明の目的は電磁妨害や高周波誘導があるときにも安
全に車を走行させ、しかも運転者のペダル操作が直接ス
ロットル制御できるスロットル制御装置を提供すること
にある。SUMMARY OF THE INVENTION An object of the present invention is to provide a throttle control device that allows a vehicle to run safely even in the presence of electromagnetic interference or high-frequency induction, and that can directly control the throttle by the driver's pedal operation.

〔発明の概要〕[Summary of the invention]

電磁妨害や高周波誘導は、特に配線が混んでいるマイク
ロコンピュータ周りや配線の長い場合に起きやすい。ア
クセルペダルの信号に関し、マイクロコンピュータを介
せず直接スロットル角を操作するサーボ制御機構に一ヒ
記信号を送り、それに基づいてスロットル角を制御する
ことにより電磁妨害や高周波誘導を回避する。また、上
記障害よる誤動作が起こるか否かというチェックは、ア
クセルペダルの信号を基準とし、マイクロコンピュータ
から得られるスロットル制御信号に対し、許容範囲に入
っているか否かで判断し、許容範囲内であればマイクロ
コンピュータから得られるスロットル制御信号によりサ
ーボ機構を制御し、許容範囲外であれば誤動作とみなし
、アクセルペダルの信号によりサーボ機構を制御する。Electromagnetic interference and high-frequency induction are particularly likely to occur around microcomputers where wiring is crowded or when wiring is long. Regarding the accelerator pedal signal, one signal is sent to the servo control mechanism that directly controls the throttle angle without going through a microcomputer, and the throttle angle is controlled based on the signal to avoid electromagnetic interference and high frequency induction. In addition, to check whether or not malfunctions occur due to the above-mentioned failure, the accelerator pedal signal is used as a reference, and the throttle control signal obtained from the microcomputer is judged by whether or not it is within the permissible range. If there is, the servo mechanism is controlled by the throttle control signal obtained from the microcomputer, and if it is outside the allowable range, it is regarded as a malfunction, and the servo mechanism is controlled by the signal from the accelerator pedal.

〔発明の実施例〕[Embodiments of the invention]

以下、本発明の一実施例を第１図〜第４図により説明す
る。第１図は、実施例の構成図である。An embodiment of the present invention will be described below with reference to FIGS. 1 to 4. FIG. 1 is a configuration diagram of an embodiment.

スロットル７の操作量を検出するポテンショメータ８は
電圧信号９となってマイクロコンピュータ１１とスロッ
トルサーボ制御装置５に送られる。A potentiometer 8 that detects the amount of operation of the throttle 7 becomes a voltage signal 9 and is sent to a microcomputer 11 and a throttle servo control device 5.

マイクロコンピュータ１１は前記信号９をＡ−Ｄ変換し
アクセル操作量を得る。マイクロコンピュータ１１には
、エンジンの回転数、車速、負荷。The microcomputer 11 converts the signal 9 from analog to digital to obtain the accelerator operation amount. The microcomputer 11 stores the engine speed, vehicle speed, and load.

空気量、水温なども入力されており、これらのデータか
ら、エンジントルク出力最大あるいは低燃料消費率を目
的に、マイクロコンピュータ１１は、所望の運転性とな
るよう第３図のようにスロットル角を制御するスロット
ル制御信号１０を出力する。但し、スロットル制御信号
１０の電圧■は、前記電圧信号９に対し、第２図に示し
たようにスロットル制御信号許容範囲Ｒ内になければな
らない。これは、アクセル操作を機械的にスロットルに
は連動されず、一旦マイクロコンピュータ１１を介して
スロットル制御することによって任意の空気量を吸入し
ようとする方法に関して、マイクロコンピュータ１１が
出力するスロットル制御信号がアクセル操作量を示す信
号を基準とした制御信号許容範囲内にすることを意味す
る。マイクロコンピュータ１１は、第２図に示すスロッ
トル制御信号許容範囲Ｒ内のスロットル制御信号１０を
出力するが、電磁妨害等によりこの信号１０が制御信号
許容範囲外になる場合が起こる。つまり、第３図の信号
１０が、第２図のスロットル制御信号許容範囲２１およ
び２２の外に出る場合がある。Air volume, water temperature, etc. are also input, and based on these data, the microcomputer 11 adjusts the throttle angle as shown in Figure 3 to achieve the desired drivability, with the aim of maximizing engine torque output or reducing fuel consumption. A throttle control signal 10 to be controlled is output. However, the voltage (2) of the throttle control signal 10 must be within the throttle control signal tolerance range R with respect to the voltage signal 9, as shown in FIG. This is a method in which the accelerator operation is not mechanically linked to the throttle, and the throttle control signal output by the microcomputer 11 is used to inhale an arbitrary amount of air by once controlling the throttle via the microcomputer 11. This means keeping the control signal within the permissible range based on the signal indicating the amount of accelerator operation. The microcomputer 11 outputs a throttle control signal 10 within the throttle control signal permissible range R shown in FIG. 2, but this signal 10 may fall outside the control signal permissible range due to electromagnetic interference or the like. That is, signal 10 in FIG. 3 may fall outside the throttle control signal tolerance ranges 21 and 22 in FIG. 2.

このことは人間の操作意志に反したスロットル開度が操
作されることになるので、車の暴走、あるいは停止とい
った状況も発生する。This means that the throttle opening degree is operated against the human's will, which may cause the vehicle to run out of control or come to a halt.

このような状況になることを避けるために、スロットル
制御信号許容範囲Ｒ内に信号１０が入らない場合は、電
磁妨害が起きたとして次のように安全手段を設ける。第
４図に示した回路によ番１、信号１０が信号２１と信号
２２の範囲内になければ、上記サーボ制御装置５への制
御信号９が信号４０として出力される。第４図のレベル
シフト回路３１では、ボタンショメータから得られた制
御信号９に定電圧を付加し信号２１とするとともに制御
信号９から定電圧を降下させ信号２２とする。In order to avoid such a situation, if the signal 10 does not fall within the throttle control signal tolerance range R, it is assumed that electromagnetic interference has occurred and the following safety measures are provided. If the number 1 and signal 10 are not within the range of signals 21 and 22, the circuit shown in FIG. 4 outputs the control signal 9 to the servo control device 5 as the signal 40. In the level shift circuit 31 of FIG. 4, a constant voltage is added to the control signal 9 obtained from the button thometer to produce a signal 21, and a constant voltage is dropped from the control signal 9 to produce a signal 22.

定電圧比較器３２では、信号２１と信号１０を比較して
信号１０が信号２１以下であればＯｌさもなければ１を
出力する。定電圧比較器３３では、信号２２と信号１０
を比較して信号１０が信号２２以上であればＯｌさもな
ければ１を出力する。The constant voltage comparator 32 compares the signal 21 and the signal 10, and if the signal 10 is less than the signal 21, it outputs 1 otherwise. In the constant voltage comparator 33, the signal 22 and the signal 10
If the signal 10 is greater than or equal to the signal 22, then 1 is output.

ＮＡＮＤ回路３４では、信号１０が信号２１と信号２２
の範囲内にあればＯｌそれ以外は１を出力することにな
る。選択回路３５は、前記ＮＡＮＤ回路の出力信号がＯ
（Ｌｏｗ）なら信号９を信号４０として出力し、ＮＡＮ
Ｄ出力信号が１　（’Ｈｉｇｈ）なら信号１０を信号４
０として出力する。In the NAND circuit 34, the signal 10 is connected to the signal 21 and the signal 22.
If it is within the range, 1 is output otherwise. The selection circuit 35 selects whether the output signal of the NAND circuit is O
(Low), outputs signal 9 as signal 40, and
If the D output signal is 1 ('High), signal 10 is changed to signal 4.
Output as 0.

本実施例ではスロットルサーボ制御装置５に第４図の回
路を内蔵させている。本実施例によれば、マイクロコン
ピュータの誤動作あるいはマイクロコンピュータ周りの
配線混雑によるワイヤーハーネスによる電磁障害に対し
、アクセル操作ペダルからマイクロコンピュータを介さ
ず直接スロットル制御機構に信号を送るルートを設ける
ことにより、コンピュータの誤動作や電磁障害が起ぎて
も、自動車が暴走したり停止したすせずに、安全な走行
を可能にした効果がある。In this embodiment, the throttle servo control device 5 has a built-in circuit as shown in FIG. According to this embodiment, in order to prevent electromagnetic interference caused by the wire harness due to malfunction of the microcomputer or congestion of wiring around the microcomputer, a route is provided to send a signal from the accelerator pedal directly to the throttle control mechanism without going through the microcomputer. Even if a computer malfunctions or electromagnetic interference occurs, the car can continue to drive safely without running out of control or stopping.

〔発明の効果〕〔Effect of the invention〕

本発明によれば、電磁妨害や高周波誘導があるときは、
それを自動的に検知し、障害の対象となるマイクロコン
ピュータを介せず、運転者のペダル操作が直接スロット
ル制御機構に送られることができるので、電磁妨害や高
周波誘導が起きても、自動車が暴走したり、エンジン停
止したすせず、通常運転者がペダル操作するようにスロ
ットルを動作させるので安全な走行が可能となる。According to the invention, when there is electromagnetic interference or high frequency induction,
This is automatically detected, and the driver's pedal operations can be sent directly to the throttle control mechanism without going through the microcomputer, which can cause interference, so even if electromagnetic interference or high-frequency induction occurs, the car will continue to operate. If the vehicle drives out of control or the engine stops, the throttle is operated in the same way as a normal driver would operate the pedals, allowing safe driving.

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

第１図は本発明の実施例のスロットル制御の構成図、第
２図はポテンショメータから得られた制御信号とスロッ
トル制御信号許容範囲を示す図、第３図はマイクロコン
ピュータが演算出力したスロットル制御信号を示す図、
第４図は障害が起きたときに信号を切り換える回路を示
す図である。Figure 1 is a configuration diagram of the throttle control according to the embodiment of the present invention, Figure 2 is a diagram showing the control signal obtained from the potentiometer and the throttle control signal tolerance range, and Figure 3 is the throttle control signal calculated and output by the microcomputer. A diagram showing
FIG. 4 is a diagram showing a circuit that switches signals when a failure occurs.

Claims (1)

【特許請求の範囲】[Claims] アクセルとマイクロコンピユータとスロツトル制御機構
よりなるスロツトル制御装置において、スロツトル制御
信号が正常動作であるスロツトル制御信号許容許容範囲
内にあるか判定する手段と、前記許容範囲内にスロツト
ル制御信号がなければ、アクセルの操作信号をスロツト
ル制御信号として切り換える手段とを設けたことを特徴
とする自動車のスロツトル制御装置。In a throttle control device comprising an accelerator, a microcomputer, and a throttle control mechanism, there is provided a means for determining whether a throttle control signal is within a throttle control signal permissible range for normal operation, and if the throttle control signal is not within the permissible range, 1. A throttle control device for an automobile, comprising means for switching an accelerator operation signal as a throttle control signal.
JP21234085A 1985-09-27 1985-09-27 Throttle controller for vehicle Pending JPS6275048A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21234085A JPS6275048A (en) 1985-09-27 1985-09-27 Throttle controller for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21234085A JPS6275048A (en) 1985-09-27 1985-09-27 Throttle controller for vehicle

Publications (1)

Publication Number Publication Date
JPS6275048A true JPS6275048A (en) 1987-04-06

Family

ID=16620917

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21234085A Pending JPS6275048A (en) 1985-09-27 1985-09-27 Throttle controller for vehicle

Country Status (1)

Country Link
JP (1) JPS6275048A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5092298A (en) * 1990-05-09 1992-03-03 Honda Giken Kogyo Kabushiki Kaisha Fail-safe system for throttle valve controller
US5355972A (en) * 1992-04-21 1994-10-18 Mitsubishi Denki Kabushiki Kaisha Control device for a sucked air quantity of an engine
JP2008232512A (en) * 2007-03-19 2008-10-02 Aisin Seiki Co Ltd Engine-driven air conditioning device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5092298A (en) * 1990-05-09 1992-03-03 Honda Giken Kogyo Kabushiki Kaisha Fail-safe system for throttle valve controller
US5355972A (en) * 1992-04-21 1994-10-18 Mitsubishi Denki Kabushiki Kaisha Control device for a sucked air quantity of an engine
JP2008232512A (en) * 2007-03-19 2008-10-02 Aisin Seiki Co Ltd Engine-driven air conditioning device

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