JPH0635851B2 - Abnormality diagnosis device for accelerator control device of internal combustion engine for vehicle - Google Patents

Abnormality diagnosis device for accelerator control device of internal combustion engine for vehicle

Info

Publication number
JPH0635851B2
JPH0635851B2 JP12735384A JP12735384A JPH0635851B2 JP H0635851 B2 JPH0635851 B2 JP H0635851B2 JP 12735384 A JP12735384 A JP 12735384A JP 12735384 A JP12735384 A JP 12735384A JP H0635851 B2 JPH0635851 B2 JP H0635851B2
Authority
JP
Japan
Prior art keywords
throttle valve
valve opening
detecting
abnormality
displacement amount
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.)
Expired - Lifetime
Application number
JP12735384A
Other languages
Japanese (ja)
Other versions
JPS618435A (en
Inventor
昭 武井
真二 片寄
秀明 井上
実 田村
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP12735384A priority Critical patent/JPH0635851B2/en
Publication of JPS618435A publication Critical patent/JPS618435A/en
Publication of JPH0635851B2 publication Critical patent/JPH0635851B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
    • F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
    • F02D11/107—Safety-related aspects

Description

【発明の詳細な説明】 〈産業上の利用分野〉 本発明は、車両用内燃機関の電子式のアクセル制御装置
において異常を診断する装置に関する。Description: TECHNICAL FIELD The present invention relates to a device for diagnosing an abnormality in an electronic accelerator control device for an internal combustion engine for a vehicle.

〈従来の技術〉 車両用内燃機関の電子式のアクセル制御装置としては、
例えば、特開昭５９−５８１３１号公報に示すようなも
のがある。<Prior Art> As an electronic accelerator control device for a vehicle internal combustion engine,
For example, there is one as shown in JP-A-59-58131.

このものにおいては、通常はアクセルペダルの変位量を
電気的に検出し、該変位量に対応する絞り弁開度となる
ようにアクチュエータによって絞り弁を開閉駆動し、ま
た、クラッチ切断時には、アクセルペダルの変位量とは
無関係に車速と一致する機関速度が得られるように絞り
弁開度を制御してクラッチの滑りを防止している。In this system, the displacement of the accelerator pedal is normally detected electrically, the throttle valve is opened and closed by an actuator so that the throttle valve opening corresponds to the displacement, and when the clutch is disengaged, the accelerator pedal is opened. The slippage of the clutch is prevented by controlling the opening degree of the throttle valve so that the engine speed that matches the vehicle speed can be obtained regardless of the displacement amount.

〈発明が解決しようとする問題点〉 ところで、このような従来の電子式のアクセル制御装置
にあっては、例えば、絞り弁開度センサに異常を生じた
場合、絞り弁は駆動されるが、運転者の意思に反して開
閉動作したり、又、アクチュエータに異常を生じた場合
絞り弁が開き放しで固定されるなど、各種の異常により
様々な不具合が生じ、かかる異常別に異なる不具合に対
処することができないという問題があった。<Problems to be Solved by the Invention> By the way, in such a conventional electronic accelerator control device, for example, when an abnormality occurs in the throttle valve opening sensor, the throttle valve is driven, Various malfunctions occur due to various abnormalities, such as opening and closing operation contrary to the driver's intention, and the throttle valve being fixed open when an abnormality occurs in the actuator. There was a problem that I could not.

本発明はこのような従来の問題点に鑑みなされたもの
で、アクセル制御装置における絞り弁開度検出手段の異
常と他の系統の異常とを区別して診断でき、もって異常
別に対処できるようにした車両用内燃機関のアクセル制
御装置における異常診断装置を提供することを目的とす
る。The present invention has been made in view of such a conventional problem, and an abnormality of the throttle valve opening detection means in the accelerator control device and an abnormality of another system can be distinguished and diagnosed, and accordingly, it is possible to deal with each abnormality. An object of the present invention is to provide an abnormality diagnosis device in an accelerator control device for an internal combustion engine for a vehicle.

〈問題点を解決するための手段〉 このため本発明は、第１図に示すように、運転者によっ
て操作されるアクセルペダルの変位量を検出するペダル
変位量検出手段Ａと、機関の吸気系に設けた絞り弁の開
度を検出する絞り弁開度検出手段Ｂと、これら検出手段
からの信号に応じて絞り弁開度の制御信号を発生する制
御信号発生手段Ｃと、絞り弁開度制御信号に対応した弁
開度となるように絞り弁を開閉駆動する絞り弁駆動手段
Ｄとを備えてなる車両用内燃機関のアクセル制御装置に
おいて、絞り弁の全閉状態を検出する絞り弁全閉検出手
段Ｅと、前記ペダル変位量検出手段Ａによって機関運転
中にアクセルペダルの変位量が零位置に変化してから零
位置に保持されている経過時間を計測する計測手段Ｆ
と、該計時手段により計測された経過時間が所定時間と
なった時に前記絞り弁開度検出手段による検出値が絞り
弁の全閉状態に相当する値となっているか否かを判別
し、なっていないと判別した場合には更に、前記絞り弁
全閉検出手段から絞り弁全閉状態検出信号が出力されて
いるか否かを判別し、出力されていると判別したときは
絞り弁開度検出手段が異常であり、出力されていないと
判別したときは他の系統に異常があると判別する異常判
別手段Ｇとを設けた構成とする。<Means for Solving Problems> Therefore, according to the present invention, as shown in FIG. 1, the pedal displacement amount detecting means A for detecting the displacement amount of the accelerator pedal operated by the driver, and the intake system of the engine. Throttle valve opening detecting means B for detecting the opening degree of the throttle valve provided in the above, control signal generating means C for generating a control signal of the throttle valve opening according to signals from these detecting means, and throttle valve opening degree An accelerator control device for an internal combustion engine for a vehicle, comprising: a throttle valve drive means D for driving the throttle valve to open and close so as to have a valve opening degree corresponding to a control signal. The closing detecting means E and the measuring means F for measuring the elapsed time that the displacement amount of the accelerator pedal is held at the zero position after the displacement amount of the accelerator pedal is changed to the zero position during engine operation by the pedal displacement amount detecting means A.
When the elapsed time measured by the time measuring means reaches a predetermined time, it is determined whether or not the value detected by the throttle valve opening detecting means is a value corresponding to the fully closed state of the throttle valve. When it is determined that the throttle valve fully closed state detection signal is output from the throttle valve fully closed detection means, when it is determined that the throttle valve fully closed state detection signal is output, the throttle valve opening degree detection is performed. When it is determined that the means is abnormal and not output, the abnormality determining means G that determines that there is an abnormality in another system is provided.

〈作用〉 かかる構成により、アクセルペダルの変位量を零とした
時に応答遅れを見込んだ所定時間経過後、実際の絞り弁
開度が零になっているのに絞り弁開度零の信号を出力し
ていなければ絞り弁開度検出手段の異常であると判定で
き、また、同じく所定時間経過後、実際の絞り弁開度が
零になっていなければそれ以外の系統の異常であると判
定できる。<Operation> With this configuration, when the accelerator pedal displacement is set to zero, a signal indicating that the throttle valve opening is zero is output even after the actual throttle valve opening is zero after a lapse of a predetermined time in anticipation of a response delay. If not, it can be determined that there is an abnormality in the throttle valve opening detection means, and similarly after a predetermined time has elapsed, if the actual throttle valve opening has not become zero, it can be determined that there is an abnormality in the other system. .

〈実施例〉 以下に本発明の実施例について説明する。<Examples> Examples of the present invention will be described below.

第２図は、第１の実施例の全体構成を示す。図において
アクセル操作手段としてのアクセルペダル１は、フロア
パネルに軸支され、かつ、リターンスプリング３によっ
てアイドル位置に戻す方向に付勢されている。このアク
セルペダル１の変位量を検出する手段として、ペダルポ
テンショメータ４がフロアパネル２に取り付けられ、該
ペダルポテンショメータ４からの検出信号はコントロー
ラ５のＡ／Ｄ変換器51に入力される。FIG. 2 shows the overall construction of the first embodiment. In the figure, an accelerator pedal 1 as an accelerator operating means is pivotally supported on a floor panel and is urged by a return spring 3 in a direction to return to an idle position. As a means for detecting the displacement amount of the accelerator pedal 1, a pedal potentiometer 4 is attached to the floor panel 2, and a detection signal from the pedal potentiometer 4 is input to an A / D converter 51 of a controller 5.

また、機関のスロツトルチャンバ６に装着された絞り弁
７の回転軸７ａの一端部に絞り弁駆動手段としてのサー
ボモータ８が取り付けられ、該サーボモータ８は前記コ
ントローラ５からの出力によって駆動される。サーボモ
ータ８には絞り弁開度検出手段としてのバルブポテンシ
ョメータ９が一体に取り付けられており、該バルブポテ
ンショメータ９からの信号はコントローラ５のＡ／Ｄ変
換器51に入力される。また、回転軸７ａの他端部に固定
されたレバー10と機関本体壁との間には、絞り弁７の全
閉状態を検出する手段としてのバルブ全閉スイッチ11が
設けられると共に、絞り弁７を全閉方向に付勢するリタ
ーンスプリング12が取り付けられており、前記バルブ全
閉スイッチ11からのＯＮ，ＯＦＦ信号はコントローラ５
のマイコン52に入力される。Further, a servomotor 8 as a throttle valve driving means is attached to one end of a rotary shaft 7a of a throttle valve 7 mounted in a throttle chamber 6 of the engine, and the servomotor 8 is driven by an output from the controller 5. It A valve potentiometer 9 as a throttle valve opening detection means is integrally attached to the servo motor 8, and a signal from the valve potentiometer 9 is input to an A / D converter 51 of the controller 5. Further, between the lever 10 fixed to the other end of the rotary shaft 7a and the engine main body wall, a valve fully-closed switch 11 as a means for detecting the fully closed state of the throttle valve 7 is provided, and the throttle valve A return spring 12 for urging the valve 7 in the fully closing direction is attached, and an ON / OFF signal from the valve fully closing switch 11 is sent to the controller 5
It is input to the microcomputer 52 of.

コントローラ５は次のように各処理部を備えて構成され
ている。即ち、Ａ／Ｄ変換器51は前記ペダルポテンショ
メータ４及びバルブポテンショメータ９からのアナログ
信号をデジタル信号に変換する。マイコン52は前記Ａ／
Ｄ変換器51からの信号を入力し、アクセルペダル１の変
位量に応じて絞り弁７の開度を目標値に一致させるよう
に演算処理して得られる制御信号を出力する一方、前記
バルブ全閉スイッチ11からの信号を入力して後述する異
常判別を行う。即ち、制御信号発生手段と、異常判別手
段の機能を兼ね備える。マイコン52からのデジタル制御
信号は、Ｄ／Ａ変換器52によってアナログ制御信号に変
化された後サーボドライバ54によって増幅され、該増幅
アナログ信号がサーボモータ８に出力されて該サーボモ
ータ８を所定角度回転駆動するようになっている。The controller 5 is configured to include each processing unit as follows. That is, the A / D converter 51 converts the analog signal from the pedal potentiometer 4 and the valve potentiometer 9 into a digital signal. The microcomputer 52 is the A /
A signal from the D converter 51 is input, and a control signal obtained by performing arithmetic processing to match the opening of the throttle valve 7 with a target value according to the displacement amount of the accelerator pedal 1 is output. A signal from the close switch 11 is input to perform abnormality determination described later. That is, it has both the functions of the control signal generating means and the abnormality determining means. The digital control signal from the microcomputer 52 is converted into an analog control signal by the D / A converter 52 and then amplified by the servo driver 54, and the amplified analog signal is output to the servo motor 8 to cause the servo motor 8 to move at a predetermined angle. It is designed to rotate.

次に本実施例のマイコン52による絞り弁開度制御及び異
常診断ルーチンを第３図に示したフローチャートにした
がって説明する。このフローは図示しないオペレーティ
ングシステムにより一定時間周期毎に起動される。Next, the throttle valve opening control and abnormality diagnosis routine by the microcomputer 52 of the present embodiment will be described with reference to the flow chart shown in FIG. This flow is activated at regular time intervals by an operating system (not shown).

Ｓ１では、ペダルポテンショメータ４からの信号に基づ
き、アクセルペダル１の変位量ｌを読み込む。In S1, the displacement amount 1 of the accelerator pedal 1 is read based on the signal from the pedal potentiometer 4.

Ｓ２では、前記ストローク量ｌに対応する絞り弁７開度
の目標値θ０を演算する。In S2, a target value θ 0 of the opening of the throttle valve 7 corresponding to the stroke amount 1 is calculated.

Ｓ３では、バルブポテンショメータ９の異常フラグ（V.
P.異常フラグ）が“１”となっているか否かを調べ、Ｙ
ＥＳである場合はＳ15へジャンプして、現在行われてい
るバルブポテンショメータ９が異常である場合に対処す
るための処理信号（フェールセーフ信号）の出力を継続
するが、Ｓ３の判定がＮＯの場合はＳ４へ進む。At S3, the abnormality flag (V.
Check if the P. error flag) is "1" and check if Y
If it is ES, the process jumps to S15 to continue outputting the processing signal (fail safe signal) for coping with the case where the valve potentiometer 9 is currently abnormal, but if the determination in S3 is NO. Advances to S4.

Ｓ４では、Ｓ１で読み込んだ変位量ｌから、アクセルペ
ダル１の変位量が零であるか否かを判定する。In S4, it is determined from the displacement amount 1 read in S1 whether the displacement amount of the accelerator pedal 1 is zero.

Ｓ４の判定がＮＯの場合は、Ｓ５で後述する機能をもつ
マイコン52に内蔵されたタイマーをリセットした後、Ｓ
６〜Ｓ９で正常時における絞り弁開度制御を行う。If the determination in S4 is NO, after resetting the timer built in the microcomputer 52 having the function described later in S5, S
In 6 to S9, the throttle valve opening degree control during normal operation is performed.

即ち、Ｓ６でバルブポテンショメータ９によって検出さ
れた絞り弁開度の検出値θを読み込み、Ｓ７でＳ２で演
算された目標値θ０と前記検出値θとの偏差εを演算
し、Ｓ８で該偏差εに応じてこの偏差εを０とするため
サーボモータ８の回転量を演算してＳ９で該回転量に対
応する制御信号をＤ／Ａ変換器53に出力する。これによ
りＤ／Ａ変換器53によって変換されたアナログ信号がサ
ーボドライバ54によって増幅されたサーボモータ８に出
力され、サーボモータ８が所定角度回転駆動して絞り弁
７が開閉駆動され、もって目標値θ０と一致する開度に
制御される。That is, the detection value θ of the throttle valve opening detected by the valve potentiometer 9 is read in S6, the deviation ε between the target value θ 0 calculated in S2 and the detection value θ is calculated in S7, and the deviation is calculated in S8. In order to set the deviation ε to 0 according to ε, the rotation amount of the servo motor 8 is calculated, and a control signal corresponding to the rotation amount is output to the D / A converter 53 in S9. As a result, the analog signal converted by the D / A converter 53 is output to the servo motor 8 amplified by the servo driver 54, the servo motor 8 is rotationally driven by a predetermined angle to open / close the throttle valve 7, and thus the target value. The opening is controlled to match θ 0 .

一方、Ｓ４の判定がＹＥＳである場合、即ち、アクセル
ペダル１の変位量が零となったときには、この状態を所
定時間持続するまではＳ10を経てＳ11でタイマーをカウ
ントした後Ｓ６〜Ｓ９へ進んで、前記通常の絞り弁開度
制御を行い、この状態が所定時間持続されてタイマーの
カウント値が所定値に達すると、Ｓ10の判定がＹＥＳと
なってＳ12へ進む。On the other hand, when the determination in S4 is YES, that is, when the displacement amount of the accelerator pedal 1 becomes zero, the timer is counted in S11 through S10 until this state is maintained for a predetermined time, and then the process proceeds to S6-S9. Then, the normal throttle valve opening control is performed, and when this state is maintained for a predetermined time and the count value of the timer reaches a predetermined value, the determination in S10 becomes YES and the process proceeds to S12.

Ｓ12では、バルブポテンショメータ９によって検出され
る絞り弁開度信号が、絞り弁開度零、即ち、全閉に相当
する出力であるか否かを判定し、この判定がＹＥＳの場
合はＳ５でタイマーをリセットした後Ｓ６〜Ｓ９へ進ん
で通常の絞り弁開度制御を行う。In S12, it is determined whether or not the throttle valve opening signal detected by the valve potentiometer 9 is an output corresponding to zero throttle valve opening, that is, fully closed. If this determination is YES, the timer is executed in S5. After resetting, the process proceeds to S6 to S9 to perform normal throttle valve opening control.

即ち、タイマーのカウントを終了する所定時間はアクセ
ルペダル１の変位量を零としてから絞り弁７が全閉とな
るまで応答遅れをより大きな値に設定してあり、この所
定時間内に絞り弁７の全閉状態を検出した場合には、正
常な制御が行われていると判断されるから、通常の絞り
弁開度制御を行う。That is, the response delay is set to a larger value until the throttle valve 7 is fully closed after the displacement amount of the accelerator pedal 1 is set to zero for a predetermined time after the timer counts. When the fully closed state is detected, it is determined that the normal control is performed, and thus the normal throttle valve opening control is performed.

また、Ｓ12の判定がＮＯとなった場合は、絞り弁７が全
閉となっているにも拘わらず、バルブポテンショメータ
９に異常があるか、または、サーボモータ８等に異常が
あって実際に絞り弁７が全閉となっていないかのいずれ
かであり、この場合は、Ｓ13へ進む。When the determination in S12 is NO, the valve potentiometer 9 is abnormal or the servomotor 8 is abnormal because the throttle valve 7 is fully closed. Either the throttle valve 7 is not fully closed, and in this case, the process proceeds to S13.

Ｓ13では、バルブ全閉スイッチ11がＯＮとなってるか否
かを判定する。In S13, it is determined whether the valve full-close switch 11 is ON.

Ｓ13の判定がＹＥＳの場合は、絞り弁７が実際に全閉状
態であることを示しているわけであるから、バルブポテ
ンショメータ９に異常があると判別でき、従って、Ｓ14
でV.P.異常フラグを“１”とした後、Ｓ15でバルブポテ
ンショメータ９が異常である場合に適切な処理（フェー
ルセーフ）を行う信号を出力する。If the determination in S13 is YES, it means that the throttle valve 7 is actually in the fully closed state, so it can be determined that the valve potentiometer 9 is abnormal, and therefore S14
After setting the VP abnormality flag to "1" at step S15, a signal for performing appropriate processing (fail safe) is output when the valve potentiometer 9 is abnormal at step S15.

一方、Ｓ13での判定がＮＯである場合、即ち、バルブ全
閉スイッチ11がＯＦＦの場合は、絞り弁７が全閉でない
ことを示しているから、バルブポテンショメータ９の異
常ではなく、絞り弁７の駆動系等に異常があると判別で
き、Ｓ16へ進んでかかる異常に対する適切な処理（フェ
ールセーフ）を行う信号を出力する。On the other hand, if the determination in S13 is NO, that is, if the valve fully-closed switch 11 is OFF, it indicates that the throttle valve 7 is not fully closed. Therefore, it is not an abnormality of the valve potentiometer 9 but the throttle valve 7 It can be determined that there is an abnormality in the drive system or the like, and the process proceeds to S16 to output a signal for performing appropriate processing (fail safe) for the abnormality.

但し、Ｓ15，Ｓ16のように、異常時の処理までは行わ
ず、これら異なる異常の警報を行う構成としてもよい。However, as in S15 and S16, it is also possible to perform a configuration in which an alarm for these different abnormalities is issued without performing the processing at the time of abnormality.

尚、これら異常を生じた場合は、Ｓ６〜Ｓ９までの通常
のアクセル制御は停止される。When these abnormalities occur, the normal accelerator control from S6 to S9 is stopped.

〈発明の効果〉 以上説明したように、本発明によれば、絞り弁開度をア
クセルペダルの変位量に応じて電子制御するアクセル制
御装置において、絞り弁開度検出手段の異常とそれ以外
の絞り弁駆動系等の異常とを区別して判定でき、これら
の異なる異常に対して適切に対処できるものである。<Effects of the Invention> As described above, according to the present invention, in the accelerator control device that electronically controls the throttle valve opening degree according to the displacement amount of the accelerator pedal, the abnormality of the throttle valve opening degree detection means and other It is possible to make a determination by distinguishing from an abnormality of the throttle valve drive system and to appropriately deal with these different abnormalities.

【図面の簡単な説明】[Brief description 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の実施例を示す全体構成図、第３図は同上実施
例の絞り弁開度制御及び異常診断ルーチンを示すフロー
チャートである。 １……アクセルペダル、４……ペダルポテンショメー
タ、５……コントローラ、７……絞り弁、８……サーボ
モータ、９……バルブポテンショメータ、11……バルブ
全閉スイッチFIG. 1 is a block diagram showing a configuration of the present invention, FIG. 2 is an overall configuration diagram showing a first embodiment of the present invention, and FIG. 3 shows a throttle valve opening control and an abnormality diagnosis routine of the same embodiment. It is a flowchart. 1 ... accelerator pedal, 4 ... pedal potentiometer, 5 ... controller, 7 ... throttle valve, 8 ... servo motor, 9 ... valve potentiometer, 11 ... valve fully closed switch

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】運転者によって操作されるアクセルペダル
の変位量を検出するペダル変位量検出手段と、機関の吸
気系に設けた絞り弁の開度を検出する絞り弁開度検出手
段と、これら検出手段からの信号に応じて絞り弁開度の
制御信号を発生する制御信号発生手段と、絞り弁開度制
御信号に対応した弁開度となるように絞り弁を開閉駆動
する絞り弁駆動手段とを備えてなる車両用内燃機関のア
クセル制御装置において、絞り弁の全閉状態を検出する
絞り弁全閉検出手段と、前記ペダル変位量検出手段によ
って機関運転中にアクセルペダルの変位量が零位置に変
化してから零位置に保持されている経過時間を計測する
計時手段と、該計時手段により計測された経過時間が所
定時間となった時に前記絞り弁開度検出手段による検出
値が絞り弁の全閉状態に相当する値となっているか否か
を判別し、なっていないと判別した場合には更に、前記
絞り弁全閉検出手段から絞り弁全閉状態検出信号が出力
されているか否かを判別し、出力されていると判別した
ときは絞り弁開度検出手段が異常であり、出力されてい
ないと判別したときは他の系統に異常があると判別する
異常判別手段とを設けたことを特徴とする車両用内燃機
関のアクセル制御装置における異常診断装置。1. A pedal displacement amount detecting means for detecting a displacement amount of an accelerator pedal operated by a driver, a throttle valve opening degree detecting means for detecting an opening degree of a throttle valve provided in an intake system of an engine, and these. Control signal generating means for generating a control signal for the throttle valve opening according to a signal from the detecting means, and throttle valve driving means for driving the throttle valve to open and close so that the valve opening corresponds to the throttle valve opening control signal. In an accelerator control device for an internal combustion engine for a vehicle, comprising: a throttle valve full-closed detection means for detecting a fully closed state of a throttle valve; and a displacement amount of an accelerator pedal being zero during engine operation by the pedal displacement amount detection means. Time measuring means for measuring the elapsed time that has been maintained at the zero position after changing to the position, and the detection value by the throttle valve opening detecting means when the elapsed time measured by the time measuring means reaches a predetermined time. Fully closed valve It is determined whether or not the value corresponding to the throttle valve fully closed state detection signal is output from the throttle valve fully closed detection means. However, when it is determined that it is being output, the throttle valve opening detection means is abnormal, and when it is determined that it is not being output, an abnormality determining means for determining that there is an abnormality in another system is provided. An abnormality diagnosis device for an accelerator control device of an internal combustion engine for a vehicle, which is characterized.
JP12735384A 1984-06-22 1984-06-22 Abnormality diagnosis device for accelerator control device of internal combustion engine for vehicle Expired - Lifetime JPH0635851B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12735384A JPH0635851B2 (en) 1984-06-22 1984-06-22 Abnormality diagnosis device for accelerator control device of internal combustion engine for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12735384A JPH0635851B2 (en) 1984-06-22 1984-06-22 Abnormality diagnosis device for accelerator control device of internal combustion engine for vehicle

Publications (2)

Publication Number Publication Date
JPS618435A JPS618435A (en) 1986-01-16
JPH0635851B2 true JPH0635851B2 (en) 1994-05-11

Family

ID=14957830

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12735384A Expired - Lifetime JPH0635851B2 (en) 1984-06-22 1984-06-22 Abnormality diagnosis device for accelerator control device of internal combustion engine for vehicle

Country Status (1)

Country Link
JP (1) JPH0635851B2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4854283A (en) * 1986-11-28 1989-08-08 Nippondenso Co., Ltd. Throttle valve control apparatus
JP2913638B2 (en) * 1987-06-10 1999-06-28 三菱自動車工業株式会社 Drive-by-wire type throttle valve controller
JPH01162084U (en) * 1988-04-30 1989-11-10
JP2658496B2 (en) * 1990-04-27 1997-09-30 三菱自動車工業株式会社 Failure determination and recovery method for DC motor type positioning device
JPH0599002A (en) * 1991-10-12 1993-04-20 Aisin Seiki Co Ltd Throttle control device
KR100325164B1 (en) * 1999-06-22 2002-02-25 이계안 Method for diagnosis fail accelator position sensor using a ets
JP2007015469A (en) * 2005-07-05 2007-01-25 Fujitsu Ten Ltd Control device and control method for driving assistance device

Also Published As

Publication number Publication date
JPS618435A (en) 1986-01-16

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