公开(公告)号：EP0656096A1

公开(公告)日：1995-06-07

申请号：EP94913011.0

申请日：1994-04-22

申请人： ROBERT BOSCH GMBH

发明人： KUGLER, Karl-Heinz ,  RIEDEL, Karlheinz

IPC分类号： F02P3 ,  F02P17

CPC分类号： F02P17/12

摘要： The invention pertains to an ignition system for internal combustion engines with means for detecting misfirings. This ignition system makes it possible to detect the combustion voltage transformed on the primary side and to assess the spark duration and/or ignition combustion voltage through comparison with limit values for a proper ignition. The limit values for a proper ignition are derived from the measured values of a reference firing. The reference firing is the ignition triggered by the energy potential of the same ignition coil.

公开(公告)号：EP0364460B1

公开(公告)日：1992-01-22

申请号：EP88903781.8

申请日：1988-04-02

申请人： ROBERT BOSCH GMBH

发明人： ENTENMANN, Robert ,  KUGLER, Karl-Heinz ,  PHILIPP, Mathias ,  ROHDE, Siegfried ,  ROTHAAR, Ulrich ,  STENGEL, Bernhard ,  TORNO, Oskar ,  UNLAND, Stefan

IPC分类号： F02D41/14 ,  F02P17/00 ,  F02D41/26

CPC分类号： F02P17/12 ,  F02D35/021 ,  F02D41/1497 ,  F02P2017/125

摘要： Spark discharge voltage follows a falling flank (11) for at least a predetermined period (B) of at least 0.1 ms during normal combustion of the fuel/air mixture in the combustion chamber of an internal combustion engine. Should combustion not take place, the voltage on the ignition coil falls to zero along a flank (12) from a point (A') and the absence of any subsequent discharge voltage at the end of the predetermined period (B) can be monitored to indicate that unburnt fuel will find its way to the exhaust system where it may burn and cause the exhaust system to overheat. Such exhaust system may contain a catalyser which could be destroyed by such overheating. This is prevented by using the result of monitoring the discharge voltage to interrupt the fuel supply to the engine, at least up to the following ignition operation.

公开(公告)号：EP0607383B1

公开(公告)日：1996-01-17

申请号：EP93915652.7

申请日：1993-07-22

申请人： ROBERT BOSCH GMBH

发明人： KUGLER, Karl-Heinz ,  GOLLIN, Walter ,  RIEDEL, Karlheinz ,  ZIMMERMANN, Christian

IPC分类号： F02P15/10 ,  F02P3/045 ,  F02P9/00

CPC分类号： F02P9/002 ,  F02P3/0456 ,  F02P15/08

摘要： An ignition system for internal combustion engines with a sequence of ignition sparks (FFZ) helps to avoid damaging of the internal combustion engine by the last individual ignition spark (EZ) of the sequence of ignition sparks, for example when ignition occurs in the exhaust cycle. For that purpose, the closing time belonging to a charging process (AL) for an individual ignition is deduced from a distributability limit (VG) (end of a FFZ interval), and when the thus calculated limit (11) is reached, the instantaneous charging process is completed and the individual ignition is triggered, but no new charging process is started.

公开(公告)号：EP0607382B1

公开(公告)日：1996-01-17

申请号：EP93915651.9

申请日：1993-07-22

申请人： ROBERT BOSCH GMBH

发明人： KUGLER, Karl-Heinz ,  GOLLIN, Walter ,  RIEDEL, Karlheinz ,  ZIMMERMANN, Christian

IPC分类号： F02P15/10

CPC分类号： F02P3/053 ,  F02P9/002 ,  F02P15/08 ,  F02P17/10 ,  F02P17/12

摘要： An ignition system for internal combustion engines has a controller (7) for triggering a sequence of spark ignitions which measures the primary current (Ip) of each spark ignition of this sequence of spark ignitions every time the current flow is again switched on and compares it with a reference value. The result of this comparison allows the conditions in the combustion chamber to be ascertained and measures are taken by the controller, in particular an increase in the primary switching off current, so that for example existing shunts may be eliminated.

公开(公告)号：EP0438429B1

公开(公告)日：1993-02-10

申请号：EP89910826.0

申请日：1989-10-04

申请人： ROBERT BOSCH GMBH

发明人： JOOS, Heinz-Günter ,  KUGLER, Karl-Heinz ,  KÖHNLE, Hans

IPC分类号： F02D43/00 ,  F02P11/06 ,  G01L23/24

CPC分类号： F02D41/1448 ,  F02P11/06 ,  G01M15/106 ,  G01M15/11

摘要： A device for recognizing spark failures in an internal combustion engine has a sensor (15) for measuring the exhaust gas pressure and means (16, 17, 18) for recording the measurement value of the sensor during each cycle. Each exhaust gas pressure measurement value is compared with a corresponding expected value and an occurence signal is emitted when both values deviate from each other by more than a given difference. Means (21) for recognizing and processing failures determine the frequency of the occurrence signals and emit a failure signal when the frequency thus determined exceeds a threshold value. A warning light is switched on when the failure signal is emitted. This device for recognizing spark failures has a simple design, since the ignition in all cylinders of an internal combustion engine (11) can be monitored at the same time with a single sensor. The device can also detect failures in the exhaust gas duct (12), not only spark failures.

公开(公告)号：EP0364460A1

公开(公告)日：1990-04-25

申请号：EP88903781.0

申请日：1988-04-02

申请人： ROBERT BOSCH GMBH

发明人： ENTENMANN, Robert ,  KUGLER, Karl-Heinz ,  PHILIPP, Mathias ,  ROHDE, Siegfried ,  ROTHAAR, Ulrich ,  STENGEL, Bernhard ,  TORNO, Oskar ,  UNLAND, Stefan

IPC分类号： F02D35 ,  F02D41 ,  F02D45 ,  F02P17 ,  G01M15

CPC分类号： F02P17/12 ,  F02D35/021 ,  F02D41/1497 ,  F02P2017/125

摘要： La tension de décharge des étincelles suit un profil descendant (11) pendant au moins une période prédéterminée (B) d'au moins 0,1 ms pendant la combustion normale du mélange air/carburant dans la chambre de combustion d'un moteur à combustion interne. Si la combustion ne se produit pas, la tension s'exerçant sur la bobine d'allumage tombe à zéro le long d'un profil (12) partant d'un point (A') et on peut surveiller l'absence de toute tension de décharge ultérieure à la fin de la période prédéterminée (B), ce qui indique que le carburant non brûlé s'achemine vers le système d'échappement où il peut brûler et provoquer un surchauffage du système d'échappement. Un tel système d'échappement peut contenir un catalyseur, qui risque d'être détruit par un tel surchauffage, ce qu'on évite en utilisant le résultat de l'observation de la tension de décharge pour interrompre l'arrivée de carburant dans le moteur, au moins jusqu'à la prochaine opération d'allumage.

公开(公告)号：EP0615580B1

公开(公告)日：1997-05-28

申请号：EP93918954.4

申请日：1993-09-08

申请人： ROBERT BOSCH GMBH

发明人： KUGLER, Karl-Heinz ,  ZIMMERMANN, Christian ,  GOLLIN, Walter

IPC分类号： F02P3/055 ,  F02P17/00

CPC分类号： F02P17/12 ,  F02P3/0554

摘要： An ignition system for internal combustion engines has a clamping circuit (10, 11, 12, 16) for limiting the primary voltage and protecting high-voltage conducting parts against destruction. The ignition system has a voltage clamping device for the ignition transistor (3), and the clamping voltage is variable depending on a load on the secondary side. The primary voltage (Up) is determined by an evaluation unit (9). When the secondary laod is high, a high clamping voltage is applied, and when the secondary load is low, a low clamping voltage is applied. Moreover, the evaluation (23-28) of the primary voltage enables to diagnose defects in the ignition system.

公开(公告)号：EP0656096B1

公开(公告)日：1996-12-11

申请号：EP94913011.6

申请日：1994-04-22

申请人： ROBERT BOSCH GMBH

发明人： KUGLER, Karl-Heinz ,  RIEDEL, Karlheinz

IPC分类号： F02P17/00

CPC分类号： F02P17/12

摘要： The invention pertains to an ignition system for internal combustion engines with means for detecting misfirings. This ignition system makes it possible to detect the combustion voltage transformed on the primary side and to assess the spark duration and/or ignition combustion voltage through comparison with limit values for a proper ignition. The limit values for a proper ignition are derived from the measured values of a reference firing. The reference firing is the ignition triggered by the energy potential of the same ignition coil.

公开(公告)号：EP0615580A1

公开(公告)日：1994-09-21

申请号：EP93918954.0

申请日：1993-09-08

申请人： ROBERT BOSCH GMBH

发明人： KUGLER, Karl-Heinz ,  ZIMMERMANN, Christian ,  GOLLIN, Walter

IPC分类号： F02P3 ,  F02P17

CPC分类号： F02P17/12 ,  F02P3/0554

摘要： Un système d'allumage pour moteurs à combustion interne comprend un circuit de verrouillage (10, 11, 12, 16) qui limite la tension primaire pour protéger les parties conductrices de haute tension contre la destruction. Le système d'allumage comprend un dispositif de verrouillage de la tension du transistor d'allumage (3). La tension de verrouillage peut varier en fonction d'une charge appliquée du côté secondaire. La tension primaire (Up) est déterminée par une unité d'évaluation (9); lorsque la charge secondaire est élevée, une haute tension de verrouillage est utilisée, et lorsque la charge secondaire est basse, une basse tension de limitation est utilisée. En outre, l'évaluation (23-28) de la tension primaire permet de diagnostiquer des défauts du système d'allumage.

公开(公告)号：EP0607383A1

公开(公告)日：1994-07-27

申请号：EP93915652.0

申请日：1993-07-22

申请人： ROBERT BOSCH GMBH

发明人： KUGLER, Karl-Heinz ,  GOLLIN, Walter ,  RIEDEL, Karlheinz ,  ZIMMERMANN, Christian

IPC分类号： F02P3 ,  F02P9 ,  F02P15

CPC分类号： F02P9/002 ,  F02P3/0456 ,  F02P15/08

摘要： L'invention concerne un allumeur pour moteurs à combustion interne avec allumage par séquence d'étincelles (FFZ), qui sert à ce que la dernière étincelle d'allumage individuelle (EZ) d'une séquence d'étincelles n'endommage pas le moteur à combustion interne, par exemple par allumage lors du cycle d'échappement. A cet effet, le temps de fermeture inhérent à un processus de charge (AL) pour un allumage individuel est déduit d'une limite d'aptitude à la distribution (VG) (fin d'un intervalle de FFZ). Lorsque cette limite (11) ainsi calculée est atteinte, le processus de charge en cours est parachevé et l'allumage individuel est déclenché, mais aucun nouveau processus de charge n'est initié.