JPH02104979A - Cylinder discriminator for internal combustion engine - Google Patents
Cylinder discriminator for internal combustion engineInfo
- Publication number
- JPH02104979A JPH02104979A JP63255833A JP25583388A JPH02104979A JP H02104979 A JPH02104979 A JP H02104979A JP 63255833 A JP63255833 A JP 63255833A JP 25583388 A JP25583388 A JP 25583388A JP H02104979 A JPH02104979 A JP H02104979A
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- Prior art keywords
- series
- sequence
- train
- cylinder identification
- cylinder
- Prior art date
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- Granted
Links
- 238000002485 combustion reaction Methods 0.000 title claims description 15
- 230000001360 synchronised effect Effects 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 239000000446 fuel Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000013518 transcription Methods 0.000 description 1
- 230000035897 transcription Effects 0.000 description 1
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は、内燃機関の気筒識別装置、特に回転信号発
生器の１系統の信号がら気筒の識別を行ない、気筒識別
系列の結果が正規系列の場合のみ制御に反映させるよう
にした内燃機関の気筒識別装置に関するものである。Detailed Description of the Invention [Industrial Application Field] The present invention is a cylinder identification device for an internal combustion engine, in particular, a cylinder identification system based on a signal of one system of a rotation signal generator, and the result of a cylinder identification series is a normal series. This invention relates to a cylinder identification device for an internal combustion engine that is configured to reflect this in control only in the following cases.
［従来の技術］
内燃機関の点火時期や燃料噴射等を制御するために機関
の回転に同期した信号が用いられる。[Prior Art] In order to control ignition timing, fuel injection, etc. of an internal combustion engine, a signal synchronized with the rotation of the engine is used.
この信号発生器は通常機関のカム軸あるいはクランク軸
の回転を検出する。このような回転信号発生器の一例が
第３図および第４図に示されている。This signal generator usually detects the rotation of the engine's camshaft or crankshaft. An example of such a rotational signal generator is shown in FIGS. 3 and 4.
図において、（１）は機関（図示せず）と同期して回転
する回転軸、（２）は回転軸（１）に取り付けられた回
転円板で、所望の検出角度に対応する場所に窓（３）が
設けられている。（４）は発光ダイオード。In the figure, (1) is a rotating shaft that rotates in synchronization with the engine (not shown), and (2) is a rotating disk attached to the rotating shaft (1), which has a window at a location corresponding to the desired detection angle. (3) is provided. (4) is a light emitting diode.
（５）は発光ダイオード（４）からの出力光を受光する
フォトダイオード、（６）はフォトダイオード（４）と
接続され、フォトダイオード（４）の出力信号を増幅す
る増幅回路、く７）は増幅回路（６）と接続され、オー
プンコレクタの出力１−ランジスタである。(5) is a photodiode that receives the output light from the light emitting diode (4); (6) is an amplifier circuit that is connected to the photodiode (4) and amplifies the output signal of the photodiode (4); It is connected to the amplifier circuit (6) and is an open collector output 1 transistor.
なお、特定の気筒に対応する窓（３′）は、他の気筒に
対応する窓（３）より予め大きくされている。Note that the window (3') corresponding to a specific cylinder is made larger in advance than the window (3) corresponding to other cylinders.
回転信号発生器からは第５図に示すような信号が出力さ
れ第６図に示すように回転信号発生器（８）の出力信号
はインターフェース回路（９）を経てマイクロコンピュ
ータ〈１０）に入力され、気筒対応の気筒識別信号の周
期に対する信号のデユーティサイクルの大小関係を判別
することにより特定気筒（第５図では、デユーティサイ
クルが第４気筒が他の気筒より大きい）のタイミングが
検出し２点火時期や燃料噴射等の制御演算に用いられる
。The rotation signal generator outputs a signal as shown in Fig. 5, and as shown in Fig. 6, the output signal of the rotation signal generator (8) is input to the microcomputer (10) via the interface circuit (9). The timing of a specific cylinder (in FIG. 5, the duty cycle of the fourth cylinder is larger than that of the other cylinders) is detected by determining the magnitude relationship of the duty cycle of the signal with respect to the period of the cylinder identification signal corresponding to the cylinder. 2 Used for control calculations such as ignition timing and fuel injection.
［発明が解決しようとする課題］
上記のような従来の内燃機関の気筒識別装置ては、気筒
識別結果から所定サイクル分の系列を読み込み、その系
列が正規系列かどうかを判定し。[Problems to be Solved by the Invention] The conventional cylinder identification device for an internal combustion engine as described above reads a sequence for a predetermined cycle from the cylinder identification result, and determines whether the sequence is a normal sequence.
正規系列であった場合にはその系列を第２の系列として
以後の気筒識別情報とし、もし万一間違った第２の系列
を記憶した場合には以後の気筒識別情報は全て誤情報と
なるので１点火時期や燃料噴射等の演算は誤りとなり機
関に損傷を与えるという問題点があった。If it is a normal series, that series will be used as the second series and will be used as the subsequent cylinder identification information.If by any chance you memorize the wrong second series, all subsequent cylinder identification information will be incorrect information. There was a problem in that calculations of ignition timing, fuel injection, etc. could be incorrect, causing damage to the engine.
この発明は、かかる問題点を解決するためになされたも
ので、第２の系列の良否を判定し、もし万−第２の系列
が誤系列を記憶した場合でも。This invention was made to solve this problem, and it is possible to determine the quality of the second sequence even if the second sequence is an incorrect sequence.
その第２の系列を正規系列に書き換えるようにした内燃
機関の気筒識別装置を得ることを目的とする。An object of the present invention is to obtain a cylinder identification device for an internal combustion engine that rewrites the second series into a regular series.
［課題を解決するための手段］ この発明に係る内燃機関の気筒識別装置は。[Means to solve the problem] A cylinder identification device for an internal combustion engine according to the present invention.
機関の回転に同期した回転信号発生器の出力信号から気
筒の識別を行う気筒識別装置において５個々の気筒識別
結果から所定サイクル分の系列を読み込み第１の系列と
して記憶するための第１の記憶手段と、前記第１系列が
正規系列かどうかを判定する第１の判定手段と、この第
１の判定手段が前記第１の系列を正規系列と判定した場
合、正規系列と判定された前記第１の系列を第２の系列
として記憶する第２の記憶手段と、前記第１の記憶手段
の内容と前記第２の記憶手段の内容とを比較して前記第
２の系列の良否を判定する第２の判定手段とを備えたも
のである。A first memory for reading a sequence for a predetermined cycle from five individual cylinder identification results and storing it as a first sequence in a cylinder identification device that identifies cylinders from an output signal of a rotation signal generator synchronized with engine rotation. means, first determining means for determining whether the first sequence is a normal sequence; and when the first determining means determines that the first sequence is a normal sequence, a second storage means for storing the first series as a second series, and comparing the contents of the first storage means and the contents of the second storage means to determine the quality of the second series. and a second determination means.
［作用］
この発明においては１個々の気筒識別結果から所定サイ
クル分の系列を読み込み、第１の系列として記憶し、そ
の系列が正規系列かどうかを判定し、正規系列であった
場合はその系列を記憶し。[Operation] In this invention, a sequence for a predetermined cycle is read from the results of each individual cylinder identification, is stored as a first sequence, and it is determined whether the sequence is a normal sequence, and if it is a normal sequence, the sequence is Remember.
気筒識別毎に系列を回転し第２の系列とする。それ以後
は第２の系列から得た気筒情報を制御に反映し、もし万
−誤系列が第２の系列に書き込まれた場合は、第２の系
列を正規系列に書き換えるようにする。The series is rotated every time the cylinder is identified, and a second series is obtained. After that, the cylinder information obtained from the second series is reflected in the control, and if the erroneous series is written in the second series, the second series is rewritten to the normal series.
第１図はこの発明の一実施例による内燃機関の気筒識別
装置の概略ブロック図である。（１１）はレジスタで、
毎回の気筒識別結果を逐次系列情報として取り込み一時
的に格納し、特定気筒を識別した場合は２ “１”を格
納し、他の気筒を識別した場合は“Ｏ″３３格納、 （
１２）は１バイトの第１のシフトレジスタで、レジスタ
（１１）の出力を入力して逐次左側にシフトし、第１の
系列として格納する。（１３）は判定手段で、シフトレ
ジスタ（１２）に格納された第１の系列のビットパター
ンが正規系列であるかどうかを判定する。（１＝４）は
第２のシフトレジスタで８判定手段く１３）で正規系列
と判定された場合はこれを第２の系列として格納する。FIG. 1 is a schematic block diagram of a cylinder identification device for an internal combustion engine according to an embodiment of the present invention. (11) is a register,
Each cylinder identification result is sequentially taken in as series information and temporarily stored. When a specific cylinder is identified, 2 "1" is stored, and when another cylinder is identified, "0" 33 is stored, (
12) is a 1-byte first shift register, which inputs the output of register (11), sequentially shifts it to the left, and stores it as a first series. (13) is a determination means that determines whether the bit pattern of the first series stored in the shift register (12) is a normal series. (1=4) is determined by the second shift register as a normal sequence by the 8 determining means (13), then this is stored as the second sequence.
（１５）は第２の系列の良否判定手段で、第１のシフト
レジスタ（１２）に格納されている第１の系列と第２の
シフトレジスタ（１４）に格納されている第２の系列と
を比較して第２の系列が第１の系列と等しいか否かによ
り第２の系列の良否を判定する。なお、その他のものは
第６図と同様である。(15) is a means for determining the quality of the second series, which is used to judge the quality of the first series stored in the first shift register (12) and the second series stored in the second shift register (14). The quality of the second series is determined based on whether the second series is equal to the first series. Note that the other parts are the same as those in FIG. 6.
第２図はこの発明の制御ルーチンのフローチャートを示
す図である。FIG. 2 is a diagram showing a flowchart of the control routine of the present invention.
上記のように構成された内燃機関の気筒識別装置におい
て、第２図のステップＳ１で毎回の気筒識別結果を逐次
系列情報としてレジスタ（１１）に格納する。気筒識別
結果で、“１”を特定気筒。In the internal combustion engine cylinder identification device configured as described above, each cylinder identification result is sequentially stored in the register (11) as series information in step S1 of FIG. In the cylinder identification result, “1” is a specific cylinder.
“０”を他の気筒とすると、識別毎にシフトレジスタ（
１２）に順次矢印のようにシフトして、２サイクル分の
系列情報を第１の系列として格納する。If “0” is another cylinder, the shift register (
12) in order as indicated by the arrows, and the series information for two cycles is stored as the first series.
次に、ステップＳ２でこの系列が判定済みかどうか判定
する１判定済みでない場合、ステップＳ３でこの第１の
系列−正規系列かどうかを判定手段（１３）で判定し、
正規系列と等しい場合は、ステップＳ４でこの正規系列
を第２の系列として第２のシフトレジスタ（１４）に格
納する。以後第２の系列はサイクル毎にステップＳＯに
戻り上述の動作ステップを謹り返し最新の気筒識別結果
を得て。Next, in step S2, it is determined whether or not this sequence has been determined. If it has not been determined, in step S3, the determining means (13) determines whether or not this first sequence is a normal sequence;
If it is equal to the normal sequence, this normal sequence is stored in the second shift register (14) as a second sequence in step S4. Thereafter, the second series returns to step SO every cycle and repeats the above-mentioned operation steps to obtain the latest cylinder identification result.
ステップＳ５でこれを制御に反映する。ステップＳ２で
判定済みの場合、ステップＳ６で第１のシフトレジスタ
（１２）に格納されている第１の系列と第２のシフトレ
ジスタ（１４）に格納されている第２の系列とを第２の
系列の良否判定手段（１５）で比較して、第２の系列が
第１の系列に等しい場合はステップＳ５に進み上述の動
作を行う、第２の系列が第１の系列と異なる場合は、ス
テップＳ７で第１の系列が正規系列と等しい否かを判定
し。This is reflected in the control in step S5. If the determination has been made in step S2, the first sequence stored in the first shift register (12) and the second sequence stored in the second shift register (14) are transferred to the second sequence in step S6. When the second series is equal to the first series, the process proceeds to step S5 and the above-mentioned operation is performed, and when the second series is different from the first series, , in step S7, it is determined whether the first sequence is equal to the normal sequence.
等しい場合はステップＳ８に進み、第２の系列苫き換え
カウンタを１だけインクリメントする。上第１の系列が
正規系列と異なる場合はステップＳ１０に進み、第２の
系列書き換えカウンタをリセットシ、ステップＳ１にル
ープする。この上述の比較動作を行って、ステップＳ８
で第２の系列書き換えカウンタをインクリメントを繰り
返し行い。If they are equal, the process proceeds to step S8, where the second sequence transcription counter is incremented by one. If the first series is different from the regular series, the process proceeds to step S10, where the second series rewriting counter is reset, and the process loops to step S1. After performing this above-described comparison operation, step S8
The second series rewrite counter is repeatedly incremented.
ステップＳっで、上記カウンタの値が所定値ｎにカウン
トアツプされると、第２の系列は誤系列とし、ステップ
Ｓ４に進み、正規系列を第２の系列として第２のシフト
レジスタ（１５）に格納し、誤−）た第２の系列を正規
系列に書き換える。In step S, when the value of the counter is counted up to a predetermined value n, the second series is determined to be an erroneous series, and the process proceeds to step S4, where the normal series is set as the second series and the second shift register (15) , and rewrites the erroneous second sequence into a normal sequence.
［発明の効果］
この発明は以上説明したとおり、 Ｉｔ！関の回転に同
期した回転借り発生器の出力信号から気筒の識別を行う
気筒識別装置において１個々の気筒識別結果から所定サ
イクル分の系列を読み込み第１の系列として記憶するた
めの第１の記憶手段と。[Effects of the Invention] As explained above, this invention has the following advantages: In a cylinder identification device that identifies cylinders from the output signal of a rotary borrow generator synchronized with the rotation of a cylinder, a first memory for reading a sequence for a predetermined cycle from the individual cylinder identification results and storing it as a first sequence. With means.
前記第１系列が正規系列かどうかを判定する第１の判定
手段と、この第１の判定手段が前記第１の系列を正規系
列と判定した場合、正規系列と判定された前記第１の系
列を第２の系列として記憶する第２の記憶手段と、前記
第１の記憶手段の内容と前記第２の記憶手段の内容とを
比較して前記第２の系列の良否を判定する第２の判定手
段とを備えているので、万−誤系列が第２の系列に書き
込まれても正規系列に書き換えることが可能である内燃
機関の識別装置を得る効果がある。a first determining means for determining whether the first sequence is a normal sequence; and when the first determining means determines that the first sequence is a normal sequence, the first sequence determined to be a normal sequence; a second storage means for storing as a second series; a second storage means for comparing the contents of the first storage means and the contents of the second storage means to determine the quality of the second series; Since the present invention includes a determining means, there is an effect of obtaining an internal combustion engine identification device that can rewrite to a normal sequence even if an erroneous sequence is written in the second sequence.
第１図はこの発明の一実施例による内燃機関の気筒識別
装置の概略ブロック図、第２図はこの発明の制御ルーチ
ンのフローチャート図、第３図は従来の回転信号発生器
の構造図、第４図は従来の回転信号発生器の信号処理回
路図、第５図は従来の回転信号発生器の信号波形図、第
６図は従来の内燃機関の気筒識別装置の概略ブロック図
である。
図において、（１）・・・回転軸、（２）・・・回転板
、 （３）、（３′）・・・窓、（４）・・・発光ダイ
オード、（５）・・・フォトダイオード、（８） ・・
回転信号発生器、（９）・・・インターフェース回！、
（１０）・・・マイクロコンピュータ、（１，１）・・
・レジスタ、（１２）・・第１の・シフトレジスタ。
（１３）・・・判定手段、（１４）・・ 第２のシフト
レジスタ、（１５）・・・第２の系列の良否判定手段で
ある。
なお、各図中同一符号は同−又は相当部分と示す。
第３図
第４因
第 ５ 図
第６図
手続補正書
１ 事件の表示
特願昭６３−２５５８３３号
２ 発明の名称
内燃機関の気筒識別装置
３ 補正をする者
事件との関係 特許出願人
住 所 東京都千代田区丸の内二丁目２番３号
名 称 （６０１）三菱電機株式会社代表者 志岐守
哉
４代理人
住 所 東京都千代田区丸の内二丁目４番１号
丸の内ビルディング ４１Ｉｌ
（１） 明細書の特許請求の範囲の欄（２）明細書の
発明の詳細な説明の欄
６、補正の内容
（１）明細書の特許請求の範囲を別紙の通り補正する。
（２）同書第２頁第２０行、第３頁第１行「フォトダイ
オード（４）Ｊを「フォトダイオード（５）」と補正す
る。
（３）同書第４頁第８行［万−第２の系列が誤系列を記
憶した場合」を「万−第２の系列に誤系列が記憶された
場合」と補正する。
（４）同書第７頁第１０行「正規系列ｊを「第１の系列
」と補正する。
（５）同書第８頁第４行「上」を「上記」と補正する。
（６）回書同頁第１２行「正規系列」を「第１の系列」
と補正する。
（７）同書第１０頁第１行「フォトダイオード、」を［
フォトダイオード、（６）・・・増幅回路、（７）・・
・出力トランジスタ、」と補正する。
（８）第１図および第２図を別紙の通り補正する。
特許請求の範囲
機関の回転に同期した回転信号発生器の出力信号から気
筒の識別を行う気筒識別装置において。
個々の気筒識別結果から所定サイクル分の系列を読み込
み第１の系列として記憶するための第１の記憶手段と、
前記第１系列が正規系列かどうかを判定する第１の判定
手段と、この第１の判定手段が前記第１の系列を正規系
列と判定した場合、正規系列と判定された前記第１の系
列を第２の系列として記憶する第２の記憶手段と、前記
第１の記憶手段の内容と前記第２の記憶手段の内容とを
比較して前記第２の系列の良否を判定する第２の判定手
段とを備え、以後サイクル毎に前記第２の系列を回転し
、前記第２の系列から得た気筒識別情報を制御に用いる
ようにし、もし前記第２の系列しし１誤った系列を第２
の記憶手段に記憶した場合は、前記第２の系列を正しい
系列に書き換えるようにしたたことを特徴とする内燃機
関の気筒識別装置。FIG. 1 is a schematic block diagram of a cylinder identification device for an internal combustion engine according to an embodiment of the present invention, FIG. 2 is a flowchart of a control routine of the present invention, and FIG. 3 is a structural diagram of a conventional rotation signal generator. 4 is a signal processing circuit diagram of a conventional rotation signal generator, FIG. 5 is a signal waveform diagram of the conventional rotation signal generator, and FIG. 6 is a schematic block diagram of a conventional cylinder identification device for an internal combustion engine. In the figure, (1)... Rotating shaft, (2)... Rotating plate, (3), (3')... Window, (4)... Light emitting diode, (5)... Photo Diode, (8)...
Rotation signal generator, (9)...interface time! ,
(10)...Microcomputer, (1,1)...
-Register, (12)...first shift register. (13)...determination means, (14)...second shift register, (15)...second series quality determination means. Note that the same reference numerals in each figure indicate the same or corresponding parts. Figure 3 Cause 4 5 Figure 6 Procedural amendment 1 Indication of the case Patent application No. 1983-255833 2 Name of the invention Internal combustion engine cylinder identification device 3 Person making the amendment Relationship to the case Patent applicant address 2-2-3 Marunouchi, Chiyoda-ku, Tokyo Name (601) Mitsubishi Electric Corporation Representative Moriya Shiki 4 Agent Address 41Il Marunouchi Building, 2-4-1 Marunouchi, Chiyoda-ku, Tokyo (1) Statement Claims Column (2) Detailed Description of the Invention Column 6 of the Specification, Contents of Amendment (1) The Claims of the Specification are amended as shown in the attached sheet. (2) Correct "Photodiode (4) J" to "Photodiode (5)" on page 2, line 20 and page 3, line 1 of the same book. (3) In the same book, page 4, line 8, [10,000-If the second series stores an erroneous series] is corrected to ``10,000-If the second series stores an erroneous series.' (4) Ibid., page 7, line 10: “Correct the normal series j to be the “first series.” (5) On page 8 of the same book, line 4, ``above'' is amended to read ``above''. (6) Line 12 of the same page of the circular, “regular series” is “first series”
and correct it. (7) The same book, page 10, line 1 “Photodiode,” [
Photodiode, (6)...Amplification circuit, (7)...
・Output transistor,” is corrected. (8) Correct figures 1 and 2 as shown in the attached sheet. Claims: A cylinder identification device that identifies cylinders from the output signal of a rotation signal generator synchronized with the rotation of an engine. a first storage means for reading a series for a predetermined cycle from the individual cylinder identification results and storing it as a first series;
a first determining means for determining whether the first sequence is a normal sequence; and when the first determining means determines that the first sequence is a normal sequence, the first sequence determined to be a normal sequence; a second storage means for storing as a second series; a second storage means for comparing the contents of the first storage means and the contents of the second storage means to determine the quality of the second series; The second series is rotated every cycle thereafter, and the cylinder identification information obtained from the second series is used for control. Second
A cylinder identification device for an internal combustion engine, characterized in that when the second series is stored in a storage means, the second series is rewritten to a correct series.
Claims (1)
気筒の識別を行う気筒識別装置において，個々の気筒識
別結果から所定サイクル分の系列を読み込み第１の系列
として記憶するための第１の記憶手段と，前記第１系列
が正規系列かどうかを判定する第１の判定手段と，この
第１の判定手段が前記第１の系列を正規系列と判定した
場合，正規系列と判定された前記第１の系列を第２の系
列として記憶する第２の記憶手段と，前記第１の記憶手
段の内容と前記第２の記憶手段の内容とを比較して前記
第２の系列の良否を判定する第２の判定手段とを備え，
以後サイクル毎に前記第２の系列を回転し，前記第２の
系列から得た気筒識別情報を制御に用いるようにし，も
し前記第２の系列が誤った系列を第２の記憶手段に記憶
した場合は，前記第２の系列を正しい系列に書き換える
ようにしたたことを特徴とする内燃機関の気筒識別装置
。In a cylinder identification device that identifies cylinders from an output signal of a rotation signal generator synchronized with engine rotation, a first memory reads a sequence for a predetermined cycle from each cylinder identification result and stores it as a first sequence. means, first determining means for determining whether the first sequence is a normal sequence; and when the first determining means determines that the first sequence is a normal sequence, a second storage means for storing the first series as a second series, and comparing the contents of the first storage means with the contents of the second storage means to determine the quality of the second series. and a second determination means,
Thereafter, the second series is rotated every cycle, and the cylinder identification information obtained from the second series is used for control, and if the second series stores an incorrect series in the second storage means. A cylinder identification device for an internal combustion engine, characterized in that the second series is rewritten to a correct series.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63255833A JP2501883B2 (en) | 1988-10-13 | 1988-10-13 | Cylinder identification device for internal combustion engine |
| KR1019890013650A KR930008807B1 (en) | 1988-10-13 | 1989-09-22 | Ignition timing control device |
| KR1019890014351A KR930008814B1 (en) | 1988-10-12 | 1989-10-06 | Cylinder recognition apparatus |
| DE3933836A DE3933836C3 (en) | 1988-10-12 | 1989-10-10 | Device for cylinder detection in an internal combustion engine |
| US07/420,067 US4989448A (en) | 1988-10-12 | 1989-10-11 | Cylinder recognition apparatus for an internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63255833A JP2501883B2 (en) | 1988-10-13 | 1988-10-13 | Cylinder identification device for internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02104979A true JPH02104979A (en) | 1990-04-17 |
| JP2501883B2 JP2501883B2 (en) | 1996-05-29 |
Family
ID=17284236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63255833A Expired - Lifetime JP2501883B2 (en) | 1988-10-12 | 1988-10-13 | Cylinder identification device for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2501883B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4306479A1 (en) * | 1992-03-02 | 1993-09-23 | Mitsubishi Electric Corp | Cylinder identification device e.g. for multicylinder IC engine - over-writes second shift-register sequence with corrected version when difference between sequences is ascribed to misfiring |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61190451U (en) * | 1985-05-22 | 1986-11-27 |
-
1988
- 1988-10-13 JP JP63255833A patent/JP2501883B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61190451U (en) * | 1985-05-22 | 1986-11-27 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4306479A1 (en) * | 1992-03-02 | 1993-09-23 | Mitsubishi Electric Corp | Cylinder identification device e.g. for multicylinder IC engine - over-writes second shift-register sequence with corrected version when difference between sequences is ascribed to misfiring |
| US5563515A (en) * | 1992-03-02 | 1996-10-08 | Mitsubishi Denki Kabushiki Kaisha | Cylinder identifying apparatus for a multi-cylinder internal combustion engine with misfire detection |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2501883B2 (en) | 1996-05-29 |
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