JPH0689691B2 - Throttle valve control device for in-vehicle internal combustion engine - Google Patents
Throttle valve control device for in-vehicle internal combustion engineInfo
- Publication number
- JPH0689691B2 JPH0689691B2 JP16884686A JP16884686A JPH0689691B2 JP H0689691 B2 JPH0689691 B2 JP H0689691B2 JP 16884686 A JP16884686 A JP 16884686A JP 16884686 A JP16884686 A JP 16884686A JP H0689691 B2 JPH0689691 B2 JP H0689691B2
- Authority
- JP
- Japan
- Prior art keywords
- throttle valve
- accelerator
- opening
- valve opening
- acc
- 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.)
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- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Description
【発明の詳細な説明】 技術分野 本発明は車載内燃エンジンの絞り弁の開度を制御する絞
り弁制御装置に関する。Description: TECHNICAL FIELD The present invention relates to a throttle valve control device for controlling the opening degree of a throttle valve of a vehicle-mounted internal combustion engine.
背景技術 従来の絞り弁制御装置としては、例えば、特開昭60−19
2843号公報の如く運転性の向上のためにアクセルの作動
位置及びエンジン回転数に応じて絞り弁開度を定めてそ
の開度に絞り弁を駆動する装置がある。BACKGROUND ART As a conventional throttle valve control device, for example, JP-A-60-19
As disclosed in Japanese Patent No. 2843, there is a device that determines a throttle valve opening degree in accordance with an accelerator operating position and an engine speed to improve drivability and drives the throttle valve to the opening degree.
一方、エンジンの燃費の向上を図るために絞り弁の開度
を制御することが考えられており、例えば、エンジン回
転数に対応して最小燃費消費率が得られる目標絞り弁開
度を設定し、実際の絞り弁開度と目標絞り弁開度との偏
差を減少せしめるように絞り弁を駆動することが本出願
人によって提案されている。しかしながら、アクセルの
作動位置に応じた目標回転数にエンジン回転数を制御す
るCVT（自動変速）装置等を備えていても実際の絞り弁
開度を目標絞り弁開度に等しくするように制御すると、
加速するためにアクセルペダルを急速に踏み込んだ場
合、制御応答遅れによりエンジン回転数は直ちに上昇し
ないため絞り弁の開度を急に増大させることができず良
好な加速性をを確保することが不可能となるのでこの対
策を講じることが望まれる。On the other hand, it has been considered to control the opening of the throttle valve in order to improve the fuel efficiency of the engine.For example, a target throttle valve opening that obtains the minimum fuel consumption rate is set according to the engine speed. It has been proposed by the applicant of the present invention to drive the throttle valve so as to reduce the deviation between the actual throttle valve opening and the target throttle valve opening. However, if the actual throttle valve opening is controlled to be equal to the target throttle valve opening, even if a CVT (automatic speed change) device that controls the engine speed to a target rotation speed according to the accelerator operating position is provided. ,
When the accelerator pedal is depressed rapidly for acceleration, the engine speed does not increase immediately due to the delay in control response, so the opening of the throttle valve cannot be suddenly increased, making it impossible to ensure good acceleration. Since this will be possible, it is desirable to take this measure.
発明の概要 そこで、本発明の目的は、急アクセル時のエンジンの加
速性を確保しつつ燃費の向上を図ることができる内燃エ
ンジンの絞り弁制御装置を提供することである。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a throttle valve control device for an internal combustion engine, which can improve fuel efficiency while ensuring the acceleration of the engine during a sudden accelerator.
本発明の絞り弁制御装置は検出されたアクセル作動位置
の変化速度が所定値より大であるときにはその変化速度
に応じた開度に絞り弁を駆動し、その後、徐々に目標絞
り弁開度に対して絞り弁を駆動することを特徴としてい
る。The throttle valve control device of the present invention drives the throttle valve to an opening degree according to the change speed of the detected accelerator operating position when the detected change speed is larger than a predetermined value, and then gradually reaches the target throttle valve opening degree. In contrast, it is characterized by driving the throttle valve.
実 施 例 以下、本発明の実施例を図面を参照しつつ説明する。Embodiments Embodiments of the present invention will be described below with reference to the drawings.
第１図に示した本発明の一実施例たる車載内燃エンジン
の絞り弁制御装置において、アクセルペダル１はくの字
型のブラケット２の一端に結合し、車両の床面に対して
シャフト３によって回転自在にされている。ブラケット
２の他端にはリターンスプリング４が設けられ、アクセ
ルペダル１をアイドル位置方向に付勢している。シャフ
ト３にはポテンショメータからなるアクセル作動位置セ
ンサ７が設けられ、アクセル作動位置センサ７はアクセ
ルペダル１の作動位置、すなわちシャフト３を中心にア
イドル位置からの回転角度であるアクセル角度に応じた
出力電圧を発生する。In the throttle valve control system for an on-vehicle internal combustion engine according to one embodiment of the present invention shown in FIG. It is freely rotatable. A return spring 4 is provided at the other end of the bracket 2 to urge the accelerator pedal 1 toward the idle position. The shaft 3 is provided with an accelerator operating position sensor 7 including a potentiometer, and the accelerator operating position sensor 7 outputs an output voltage corresponding to an operating position of the accelerator pedal 1, that is, an accelerator angle which is a rotation angle from the idle position around the shaft 3. To occur.
一方、エンジン吸気管11内の絞り弁12のシャフト12aに
は同じくポテンショメータからなる絞り弁開度センサ14
が設けられ、絞り弁開度センサ14は絞り弁12の開度に応
じた出力電圧を発生する。またシャフト12aにはパルス
モータ15の回転シャフトが結合している。On the other hand, the shaft 12a of the throttle valve 12 in the engine intake pipe 11 also has a throttle valve opening sensor 14 which is also a potentiometer.
The throttle valve opening sensor 14 generates an output voltage according to the opening of the throttle valve 12. The rotating shaft of the pulse motor 15 is coupled to the shaft 12a.
アクセル作動位置センサ７、絞り弁開度センサ14及びパ
ルスモータ15は制御回路17に接続されている。制御回路
17には更にエンジン16のクランクシャフト（図示せず）
の回転に応じて特定のクランク角度でパルスを発生する
クランク角センサ18、吸気管11内の絶対圧に応じた出力
を発生する絶対圧センサ19、エンジン16に燃料を噴射供
給するためのインジェクタ20が接続されている。The accelerator operation position sensor 7, the throttle valve opening sensor 14 and the pulse motor 15 are connected to a control circuit 17. Control circuit
17 also has a crankshaft of the engine 16 (not shown)
Crank angle sensor 18 that generates a pulse at a specific crank angle according to the rotation of the engine, an absolute pressure sensor 19 that generates an output according to the absolute pressure in the intake pipe 11, and an injector 20 for injecting and supplying fuel to the engine 16. Are connected.
制御回路17は第２図に示すようにアクセル作動位置セン
サ７、絞り弁開度センサ14及び絶対圧センサ19の各出力
レベルを変換するレベル変換回路21と、レベル変換回路
21を経た各電圧信号の１つを選択的に出力するマルチプ
レクサ22と、マルチプレクサ22の出力電圧をA/D変換す
るA/D変換器23と、クランク角センサ18の出力信号を波
形整形する波形整形回路24と、波形整形回路24からパル
スとして出力されるTDC信号の発生間隔をクロックパル
ス発生回路（図示せず）から出力されるクロックパルス
数によって計測するカウンタ25と、パルスモータ15を駆
動する駆動回路26aと、インジェクタ20を駆動する駆動
回路26bと、プログラムに従ってディジタル演算を行な
うCPU（中央演算回路）27と、プログラム及びデーダが
予め書き込まれたROM28と、RAM29とを備えている。マル
チプレクサ22、A/D変換器23、カウンタ25、駆動回路26
a,26b、CPU27、ROM28、及びRAM29はバス30によって互い
に接続されている。なお、CPU27には図示しないクロッ
クパルス発生回路からクロックパルスが供給される。CP
U27が設定手段をなし、またCPU27及び駆動回路26aが駆
動手段をなしている。As shown in FIG. 2, the control circuit 17 includes a level conversion circuit 21 for converting each output level of the accelerator operation position sensor 7, the throttle valve opening sensor 14, and the absolute pressure sensor 19, and a level conversion circuit.
A multiplexer 22 that selectively outputs one of the voltage signals that have passed through 21, an A / D converter 23 that A / D converts the output voltage of the multiplexer 22, and a waveform that shapes the output signal of the crank angle sensor 18. The shaping circuit 24, the counter 25 that measures the generation interval of the TDC signal output as a pulse from the waveform shaping circuit 24 by the number of clock pulses output from the clock pulse generation circuit (not shown), and the pulse motor 15 are driven. It includes a drive circuit 26a, a drive circuit 26b for driving the injector 20, a CPU (central processing circuit) 27 for performing a digital operation according to a program, a ROM 28 in which a program and data are written in advance, and a RAM 29. Multiplexer 22, A / D converter 23, counter 25, drive circuit 26
The a, 26b, CPU 27, ROM 28, and RAM 29 are connected to each other by a bus 30. A clock pulse is supplied to the CPU 27 from a clock pulse generation circuit (not shown). CP
The U27 constitutes a setting means, and the CPU 27 and the drive circuit 26a constitute a drive means.
かかる構成においては、A/D変換器23からアクセル角度
θACC、絞り弁開度θth及び吸気管内絶対圧PBAの各情報
が択一的に、カウンタ25からエンジン回転数Neの情報が
CPU27にバス30を介して供給される。CPU27はクロックパ
ルスに同期してROM28に記憶された演算プログラムに従
って上記の各情報を読み込み、後述する処理動作によっ
てパルスモータ15を駆動するためのパルスモータ開弁駆
動指令及びパルスモータ閉弁駆動指令、又はパルスモー
タ15の駆動を停止するためのパルスモータ駆動停止指令
を駆動回路26aに対して発生する。In such a configuration, the information of the accelerator angle θ ACC , the throttle valve opening θth, and the intake pipe absolute pressure P BA from the A / D converter 23 as an alternative, and the information of the engine speed Ne from the counter 25 is obtained.
It is supplied to the CPU 27 via the bus 30. CPU27 reads each of the above information according to the arithmetic program stored in ROM28 in synchronization with the clock pulse, pulse motor valve opening drive command and pulse motor valve closing drive command for driving the pulse motor 15 by the processing operation described later, Alternatively, a pulse motor drive stop command for stopping the drive of the pulse motor 15 is generated for the drive circuit 26a.
次に、かかる本発明による絞り弁制御装置の動作を第３
図に示したCPU27の動作フロー図に従って説明する。Next, the operation of the throttle valve control device according to the present invention will be described below.
The operation will be described with reference to the operation flow chart of the CPU 27 shown in the figure.
CPU27は所定周期毎にエンジン回転数Ne、絞り弁開度θt
h及びアクセル角度θACCを読み込み（ステップ51）、読
み込んだエンジン回転数Neに応じた目標絞り弁開度θth
refを検索する（ステップ52）。ROM28には第４図に示す
ような特性でエンジン回転数Neに応じた目標絞り弁開度
θthrefがθthrefデータマップとして予め記憶されてい
るので読み込んだエンジン回転数Neに応じた目標絞り弁
開度θthrefをθthrefデータマップから検索する。次い
で、今回読み込んだアクセル角度θACCと前回読み込ん
だアクセル角度θACC n-1との変化量ΔθACCを算出し
（ステップ53）、変化量ΔθACCが所定値ΔθＬより大
であるか否かを判別する（ステップ54）。ΔθACC＞Δ
θＬの場合にはアクセル変化量ΔθACCが大きく急アク
セル時としてフラグF1を１に等しくし（ステップ55）、
変化量ΔθACCが所定値ΔθＨ（ただし、ΔθＨ＞Δθ
Ｌ）より大であるか否かを判別する（ステップ56）。Δ
θACC＞ΔθＨならば、アクセルスピード係数KACCを所
定値KACCHに設定し（ステップ57）、目標絞り弁開度θt
hrefにアクセルスピード係数KACCを乗算しその算出値を
制御開度θoutとする（ステップ58）。ΔθACC≦ΔθＨ
ならば、アクセルスピード係数KACCを所定値KACCL（た
だし、KACCH＞KACCL＞１）に設定し（ステップ59）、ス
テップ58の実行により目標絞り弁開度θthrefにアクセ
ルスピード係数KACCを乗算しその算出値を制御開度θou
tとする。なお、ステップ56、57及び59の部分を第５図
に示すアクセル変化量ΔθACC−アクセルスピード係数K
ACC特性をデータマップとしてROM28に予め記憶させてお
き、算出した変化量ΔθACCに応じてそのデータマップ
からアクセルスピード係数KACCを検索するようにしても
良い。また目標絞り弁開度θthrefにアクセルスピード
係数KACCを乗算しているが、急アクセル検出時の絞り弁
開度にアクセルスピード係数KACCを乗算しても良い。The CPU 27 determines the engine speed Ne and the throttle valve opening θt every predetermined period.
h and the accelerator angle θ ACC are read (step 51), and the target throttle valve opening θth corresponding to the read engine speed Ne
Search for ref (step 52). In the ROM 28, the target throttle valve opening θthref corresponding to the engine speed Ne with the characteristics shown in FIG. 4 is stored in advance as a θthref data map. Search θthref from the θthref data map. Next, the amount of change Δθ ACC between the currently read accelerator angle θ ACC and the previously read accelerator angle θ ACC n -1 is calculated (step 53), and whether the amount of change Δθ ACC is larger than a predetermined value Δθ L or not. Is determined (step 54). Δθ ACC > Δ
In the case of θ L , the accelerator change amount Δθ ACC is large and the flag F 1 is set equal to 1 at the time of a sudden accelerator (step 55),
The amount of change Δθ ACC is a predetermined value Δθ H (where Δθ H > Δθ
It is determined whether or not L is larger than L (step 56). Δ
If θ ACC > Δθ H , the accelerator speed coefficient K ACC is set to a predetermined value K ACCH (step 57), and the target throttle valve opening θt
The href is multiplied by the accelerator speed coefficient K ACC and the calculated value is set as the control opening θout (step 58). Δθ ACC ≦ Δθ H
If so, set the accelerator speed coefficient K ACC to a predetermined value K ACCL (however, K ACCH ＞ K ACCL ＞ 1) (step 59), and by executing step 58, set the accelerator speed coefficient K ACC to the target throttle valve opening θthref. Multiply the calculated value by the control opening θou
Let t. It should be noted that the steps 56, 57 and 59 are shown in FIG. 5 in which the accelerator change amount Δθ ACC -accelerator speed coefficient K
The ACC characteristic may be stored in the ROM 28 in advance as a data map, and the accelerator speed coefficient K ACC may be retrieved from the data map according to the calculated change amount Δθ ACC . Although the target throttle valve opening θthref is multiplied by the accelerator speed coefficient K ACC , the throttle valve opening at the time of sudden accelerator detection may be multiplied by the accelerator speed coefficient K ACC .
一方、ステップ54においてΔθACC≦ΔθＬの場合には
フラグF1が１に等しいか否かを判別する（ステップ6
1）。F1＝０ならば、急アクセル時ではないので制御開
度θoutを目標絞り弁開度θthrefに等しくする（ステッ
プ62）。F1＝１ならば、急アクセルが行なわれた直後で
あるのでアクセルスピード係数KACCに係数K1（＜１）を
乗算しその算出値を新たなアクセルスピード係数KACCと
し（ステップ63）、アクセルスピード係数KACCが1.0よ
り小であるか否かを判別する（ステップ64）。KACC＞1.
0ならば、ステップ58の実行により制御開度θoutを算出
する。KACC＜1.0ならば、フラグF1を０に等しくし（ス
テップ65）、ステップ62の実行により制御開度θoutを
設定する。On the other hand, if Δθ ACC ≦ Δθ L in step 54, it is determined whether or not the flag F 1 is equal to 1 (step 6
1). If F 1 = 0, the control opening θout is made equal to the target throttle valve opening θthref because it is not during the rapid accelerator operation (step 62). If F 1 = 1, it means that the accelerator speed coefficient K ACC has been multiplied by the coefficient K 1 (<1) because the accelerator has just been accelerated, and the calculated value is used as a new accelerator speed coefficient K ACC (step 63). It is determined whether the accelerator speed coefficient K ACC is smaller than 1.0 (step 64). K ACC > 1.
If 0, the control opening θout is calculated by executing step 58. If K ACC <1.0, the flag F 1 is set equal to 0 (step 65), and the control opening θout is set by executing step 62.
ステップ58又は62において制御開度θoutを設定する
と、読み込んだ絞り弁開度θthが制御開度θoutに等し
いか否かを判別する（ステップ68）。θth＝θoutなら
ば、駆動回路26aに対してパルスモータ駆動停止指令を
発生する（ステップ69）。θth≠θoutならば、絞り弁
開度θthが制御開度θoutより大であるか否かを判別す
る（ステップ70）。θth＞θoutならば、絞り弁を閉弁
方向に駆動するために駆動回路26aに対してパルスモー
タ閉弁駆動指令を発生し（ステップ71）、θth＞θout
でないならば、すなわちθth＜θoutならば、絞り弁を
開弁方向に駆動するために駆動回路26aに対してパルス
モータ開弁駆動指令を発生する（ステップ72）。When the control opening θout is set in step 58 or 62, it is determined whether or not the read throttle valve opening θth is equal to the control opening θout (step 68). If θth = θout, a pulse motor drive stop command is issued to the drive circuit 26a (step 69). If θth ≠ θout, it is determined whether or not the throttle valve opening θth is larger than the control opening θout (step 70). If θth> θout, a pulse motor closing drive command is issued to the drive circuit 26a to drive the throttle valve in the valve closing direction (step 71), and θth> θout
If not, that is, if θth <θout, a pulse motor valve opening drive command is generated for the drive circuit 26a to drive the throttle valve in the valve opening direction (step 72).
駆動回路26aはパルスモータ開弁駆動指令に応じてパル
スモータ15を正回転させることにより絞り弁12を開弁方
向に駆動し、パルスモータ閉弁駆動指令に応じてパルス
モータ15を逆回転させることにより絞り弁12を閉弁方向
に駆動する。またパルスモータ駆動停止指令に応じてパ
ルスモータ15の回転を停止させてそのときの絞り弁開度
を維持させる。こうすることにより絞り弁開度θthを制
御開度θoutに追従させるものである。The drive circuit 26a drives the throttle valve 12 in the valve opening direction by rotating the pulse motor 15 forward in response to the pulse motor valve opening drive command, and reversely rotates the pulse motor 15 in response to the pulse motor valve closing drive command. This drives the throttle valve 12 in the valve closing direction. Further, the rotation of the pulse motor 15 is stopped in response to the pulse motor drive stop command to maintain the throttle valve opening at that time. By doing so, the throttle valve opening θth follows the control opening θout.
かかる本発明の絞り弁制御装置においては、アクセルペ
ダル１の急踏み込みによりアクセル変化量ΔθACCがΔ
θＬより大になると、ΔθACCの大きさに応じてアクセ
ルスピード係数KACCが定められ、その後、係数K1を乗算
することによりアクセルスピード係数KACCは時間経過に
従って第６図に示すように減少する。よって、絞り弁開
度θthは急アクセルにより急速に大きくθthref・KACCH
又はθthref・KACCLまで開弁しその後、徐々に減少して
目標絞り弁開度θthrefに達するのである。In such a throttle valve control device of the present invention, the accelerator change amount Δθ ACC is Δ due to the sudden depression of the accelerator pedal 1.
When it becomes larger than θ L, the accelerator speed coefficient K ACC is determined according to the magnitude of Δθ ACC . After that, the accelerator speed coefficient K ACC is multiplied by the coefficient K 1 as shown in FIG. Decrease. Therefore, the throttle valve opening θth increases rapidly due to the sudden accelerator θthref ・ K ACCH
Alternatively, the valve is opened to θthref · K ACCL and then gradually decreased to reach the target throttle valve opening θthref.
なお、上記した本発明の実施例においては、CPU27から
のパルスモータ開弁駆動指令又は閉弁駆動指令に応じて
駆動回路26aがパルスモータ15に対して所定速度でパル
スを発生するようになっているが、実際の絞り弁開度θ
thと制御開度θoutとの差に相当するパルス数を表わす
パルスモータ開弁駆動指令又は閉弁駆動指令をCPU27が
駆動回路26aに対して発生し、駆動回路26aはそのパルス
数だけ駆動パルスをパルスモータ15に供給するようにし
ても良い。In the embodiment of the present invention described above, the drive circuit 26a generates pulses at a predetermined speed with respect to the pulse motor 15 in response to a pulse motor valve opening drive command or a valve closing drive command from the CPU 27. However, the actual throttle valve opening θ
CPU 27 generates a pulse motor opening drive command or a valve closing drive command representing the number of pulses corresponding to the difference between th and the control opening θout, and the drive circuit 26a outputs the drive pulses by the number of pulses. It may be supplied to the pulse motor 15.
発明の効果 以上の如く、本発明の車載内燃エンジンの絞り弁制御装
置においては、アクセル作動位置の変化速度が所定値よ
り大であるときにはその変化速度に応じた開度に絞り弁
を駆動し、その後、徐々に目標絞り弁開度に対して絞り
弁を駆動するのでアクセルペダルを急に踏み込んだ場合
には絞り弁の開度が急速に増大しエンジン回転数を直ち
に上昇させことができる。よって、急アクセル時の加速
性を向上させることができるのである。As described above, in the throttle valve control device for an on-vehicle internal combustion engine of the present invention, when the changing speed of the accelerator operating position is larger than a predetermined value, the throttle valve is driven to an opening degree according to the changing speed, After that, since the throttle valve is gradually driven with respect to the target throttle valve opening degree, when the accelerator pedal is suddenly depressed, the throttle valve opening degree rapidly increases and the engine speed can be immediately increased. Therefore, it is possible to improve the acceleration performance at the time of sudden acceleration.
また本発明の絞り弁制御装置はアクセル作動位置に応じ
てエンジン回転数を制御するCVT装置等と併用すると好
適である。Further, the throttle valve control device of the present invention is preferably used together with a CVT device or the like that controls the engine speed according to the accelerator operating position.
第１図は本発明の実施例を示す概略構成図、第２図は第
１図の装置中の制御回路の具体的構成を示すブロック
図、第３図はCPUの動作を示すフロー図、第４図及び第
５図はROMに予め記憶されたデータマップの特性を示す
図、第６図は急アクセル直後の係数KACCの変化を示す図
である。 主要部分の符号の説明 １……アクセルペダル ７……アクセル作動位置センサ 11……吸気管 12……絞り弁 14……絞り弁開度センサ 15……パルスモータ 17……制御回路FIG. 1 is a schematic configuration diagram showing an embodiment of the present invention, FIG. 2 is a block diagram showing a concrete configuration of a control circuit in the apparatus of FIG. 1, and FIG. 3 is a flow chart showing the operation of the CPU. 4 and 5 show the characteristics of the data map stored in advance in the ROM, and FIG. 6 shows the change of the coefficient K ACC immediately after the sudden accelerator. Description of main parts 1 Accelerator pedal 7 Accelerator operation position sensor 11 Intake pipe 12 Throttle valve 14 Throttle valve opening sensor 15 Pulse motor 17 Control circuit
Claims (1)
り弁の開度を制御する絞り弁制御装置であって、アクセ
ルペダルの作動位置に応じた出力を発生するアクセル作
動検出手段と、エンジン回転数検出手段と、前記絞り弁
開度を検出する絞り弁開度検出手段と、前記エンジン回
転数検出手段によって検出されたエンジン回転数に対応
して最小燃料消費率が得られる目標絞り弁開度を設定す
る設定手段と、前記絞り弁開度検出手段によって検出さ
れた絞り弁開度と設定された目標絞り弁開度との偏差を
減少せしめるように前記絞り弁を駆動する駆動手段とを
含み、前記駆動手段は検出されたアクセル作動位置の変
化速度が所定値より大であるときにはその変化速度に応
じた開度に前記絞り弁を駆動し、その後、徐々に目標絞
り弁開度に対して前記絞り弁を駆動することを特徴とす
る絞り弁制御装置。1. A throttle valve control device for controlling an opening degree of a throttle valve arranged in an intake system of an in-vehicle internal combustion engine, comprising accelerator operation detecting means for generating an output according to an operation position of an accelerator pedal. An engine speed detecting means, a throttle valve opening detecting means for detecting the throttle opening, and a target throttle valve for obtaining a minimum fuel consumption rate corresponding to the engine speed detected by the engine speed detecting means. Setting means for setting the opening, and drive means for driving the throttle valve so as to reduce the deviation between the throttle valve opening detected by the throttle valve opening detection means and the set target throttle valve opening. When the detected change speed of the accelerator operating position is greater than a predetermined value, the drive means drives the throttle valve to an opening degree according to the change speed, and then gradually reaches a target throttle valve opening degree. for Throttle valve control apparatus characterized by driving the serial throttle valve.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16884686A JPH0689691B2 (en) | 1986-07-16 | 1986-07-16 | Throttle valve control device for in-vehicle internal combustion engine |
| US07/073,655 US4791902A (en) | 1986-07-16 | 1987-07-15 | Throttle valve control system for an internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16884686A JPH0689691B2 (en) | 1986-07-16 | 1986-07-16 | Throttle valve control device for in-vehicle internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6325348A JPS6325348A (en) | 1988-02-02 |
| JPH0689691B2 true JPH0689691B2 (en) | 1994-11-09 |
Family
ID=15875620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16884686A Expired - Fee Related JPH0689691B2 (en) | 1986-07-16 | 1986-07-16 | Throttle valve control device for in-vehicle internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0689691B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05306634A (en) * | 1992-04-28 | 1993-11-19 | Toyota Motor Corp | Intake air control device of internal combustion engine |
| JP2008236217A (en) * | 2007-03-19 | 2008-10-02 | Fujitsu Ltd | Flexray network connecting method, flexray network and electronic control unit for flexray network |
-
1986
- 1986-07-16 JP JP16884686A patent/JPH0689691B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6325348A (en) | 1988-02-02 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |