| Patents for F02P 17 - Testing of ignition installations, e.g. in combination with adjusting; Testing of ignition timing in compression-ignition engines (2,871) |
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| 09/23/1993 | DE4306479A1 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 |
| 09/21/1993 | US5247287 Digital engine analyzer |
| 09/21/1993 | US5245866 Device for detecting occurrence of misfiring in multicylinder engine |
| 09/15/1993 | EP0560603A2 A misfire detector device for use in internal combustion engine |
| 09/14/1993 | US5245324 Digital engine analyzer |
| 09/14/1993 | US5245252 Apparatus and method for providing ignition to a turbine engine |
| 09/08/1993 | EP0559540A1 Electronic ignition device with coil for engine with controlled ignition |
| 09/08/1993 | EP0559438A2 A misfire detector device for use in an internal combustion engine |
| 09/08/1993 | EP0558516A1 Spark-plug simulator. |
| 09/07/1993 | US5241937 Misfire-detecting system for internal combustion engines |
| 09/02/1993 | WO1993017233A1 Method and device for judging misfire of internal combustion engine |
| 08/31/1993 | US5241274 On-board internal combustion engine spark plug efficiency visual display |
| 08/31/1993 | US5239973 Ignition apparatus for an internal combustion engine |
| 08/29/1993 | CA2088616A1 Ignition performance monitor and monitoring method for capacitive discharge ignition systems |
| 08/26/1993 | DE4305197A1 Ignition circuit with over-current protection e.g. for IC engine - has current-limiting circuit to separate transistor circuit for each coil monitored via common supply resistor and op. amp. control to limit current to set levels. |
| 08/18/1993 | EP0555851A2 Ignition control device for an internal combustion engine electronic ignition system |
| 08/17/1993 | US5237504 Method of and apparatus for detecting misfire |
| 08/17/1993 | US5237280 Apparatus for measurement of spark plug ignition current to monitor combustion |
| 08/17/1993 | US5237279 Ignition and fuel system misfire-detecting system for internal combustion engines |
| 08/17/1993 | US5237278 Ignition signal sampling device for an ignition system, especially for an internal combustion engine |
| 08/10/1993 | US5233960 Engine ignition timing adjustment device |
| 08/05/1993 | DE4303267A1 Combustion engine controller applying correction for misfiring - compares stored value of ion current measurement with reference level before ignition coil is switched on |
| 08/05/1993 | DE4303241A1 Detection and decision device for combustion engine misfiring - applies correction to engine control when misfiring is detected at intervals of less than predetermined min. |
| 08/04/1993 | EP0394234B1 Method of detecting knocking in internal combustion engines |
| 08/03/1993 | US5231869 Method and arrangement for determining misfires in an internal combustion engine |
| 07/27/1993 | US5230240 Combustion detecting apparatus for internal combustion engine |
| 07/21/1993 | EP0551764A2 Method and apparatus for misfire and rough road detection |
| 07/21/1993 | EP0551564A2 Non-contact test probe |
| 07/13/1993 | US5226394 Misfire-detecting system for internal combustion engines |
| 07/13/1993 | US5226322 Internal combustion engine misfire detector |
| 07/08/1993 | WO1993013431A1 System for detecting the condition of ignition assemblies |
| 07/08/1993 | WO1993013312A1 Spark plug equipped ignited internal combustion engine functionality assessor |
| 07/08/1993 | CA2127092A1 System for detecting the condition of ignition assemblies |
| 06/29/1993 | US5222393 Apparatus for detecting combustion in an internal combustion engine |
| 06/23/1993 | EP0547258A1 Ignition device for internal combustion engine |
| 06/22/1993 | US5221904 Misfire-detecting system for internal combustion engines |
| 06/22/1993 | US5220821 Method of detecting knock in internal combustion engines |
| 06/17/1993 | DE4241471A1 Ignition monitor for internal combustion engine - has ion current detector, and voltage limiter in parallel with secondary ignition coil |
| 06/16/1993 | EP0546827A2 A combustion condition detecting and control device for an internal combustion engine |
| 06/16/1993 | EP0519046A4 Ionization control for automotive ignition system |
| 06/10/1993 | WO1993011356A1 Ignition system for an internal combustion engine |
| 06/09/1993 | DE4140147A1 Zuendanlage fuer brennkraftmaschinen Engine-ignition system for |
| 06/08/1993 | US5218302 Interface for coupling an analyzer to a distributorless ignition system |
| 06/08/1993 | US5216915 Misfire diagnosis apparatus for an internal combustion engine |
| 06/02/1993 | EP0544548A1 A sparkplug voltage probe device in an internal combustion engine |
| 06/01/1993 | US5216369 Ignition occurrence detecting device for use in an ignition apparatus |
| 06/01/1993 | US5215067 Misfire-detecting system for internal combustion engines |
| 06/01/1993 | US5214958 Misfiring detecting apparatus for an internal combustion device |
| 05/27/1993 | DE4239803A1 Ionisation current detector for IC engine ignition monitor - measures ionisation current through ignition coils during combustion of gas mixture |
| 05/25/1993 | US5213081 Misfire sensing apparatus for an internal combustion engine |
| 05/12/1993 | EP0540878A2 Method for evaluating ignition pulses |
| 05/06/1993 | DE4142532C1 Ignition unit for IC engine with several cylinders and ignition circuits - has diagnostic resistance connected to each ignition coil on sec. HT side between coil and earth with resistance integrated in package with coil |
| 05/05/1993 | EP0540426A1 Method and apparatus for operating conditions fault detection of an ignition system for an internal combustion engine |
| 05/04/1993 | US5208541 Spark plug firing sensor with capacitive coupling and optical pickup |
| 05/04/1993 | US5208540 Ignition performance monitor and monitoring method for capacitive discharge ignition systems |
| 05/04/1993 | US5207200 Misfiring sensing apparatus for an internal combustion engine |
| 04/22/1993 | DE4134591A1 Controller for motor vehicle IC engine - contains engine speed and wheel slip sensors and suppresses faulty combustion detection when wheel slip occurs |
| 04/20/1993 | US5204630 Preignition warning device |
| 04/15/1993 | DE4233224A1 IC engine ion current detection circuit - uses selective masking to eliminate noise pulse component in circuit output signal |
| 04/13/1993 | US5201293 Method of monitoring the operation of an internal combustion engine |
| 04/08/1993 | DE4232845A1 Misfire monitoring circuit for IC engine with elimination of false signals - applies voltage to firing chamber after firing to monitor ion current through burn and uses reference programme to eliminate spurious events |
| 04/06/1993 | USRE34211 Air-fuel ratio detecting sensor |
| 04/01/1993 | DE4231322A1 Misfire detection system for IC engine - has monitor detecting variations in engine speed during firing cycles and providing correction for uneven running from mechanical effects. |
| 03/25/1993 | DE4131004A1 Cylinder identification method for ignition installation of IC engine - evaluating signals provided by rotating code wheel attached to engine camshaft |
| 03/24/1993 | EP0533621A2 Device for testing and diagnosing the ignition system of an internal combustion |
| 03/23/1993 | US5196798 Automotive ignition coil tester |
| 03/18/1993 | DE4227104A1 Tracing misfire in internal combustion engine - using non-uniformities in the engine torque detected by measuring crankshaft angular speed and comparing with derived reference value |
| 03/16/1993 | US5194813 Spark ignition analyzer |
| 03/16/1993 | CA1314630C Distributorless ignition interface |
| 03/11/1993 | DE4129292A1 Recognition of misfiring in four-stroke combustion engine - involves reversible counting of departures of ignition voltage duration and amplitude from within operation-dependent limits |
| 03/03/1993 | EP0529281A2 Method of detecting a contacting of measuring leads |
| 02/23/1993 | US5189373 Ignition apparatus for an internal combustion engine with engine cylinder misfiring detector having an ionization current noise filter |
| 02/23/1993 | US5188088 Electronic ignition system for an internal combustion engine |
| 02/16/1993 | US5186148 Abnormality detecting device for an automobile engine |
| 02/16/1993 | US5186144 For an internal combustion engine |
| 02/10/1993 | EP0438429B1 Process and device for recognizing spark failures |
| 02/04/1993 | WO1993002286A1 Method and device for the measuring and monitoring of electrical spark gaps |
| 02/04/1993 | CA2113618A1 Method and device for the measuring and monitoring of electrical spark gaps |
| 02/02/1993 | US5184080 Test apparatus for opto-electronic time based generator of an ignition system |
| 01/27/1993 | EP0312560B1 Device and process for checking the wiring of an ignition power module |
| 01/19/1993 | US5180984 Ion current sensing device for an internal combustion engine with spurious voltage preventing filter |
| 01/19/1993 | US5180983 Ignition plug for an internal combustion engine provided with an ionization current detector electrode |
| 01/12/1993 | US5178001 Ignition apparatus for an internal combustion engine |
| 12/29/1992 | US5175501 Method of deriving a primary clock from secondary signals in a distributorless ignition system |
| 12/29/1992 | US5174367 Thermal utilization system using hydrogen absorbing alloys |
| 12/29/1992 | US5174267 Cylinder identification by spark discharge analysis for internal combustion engines |
| 12/27/1992 | CA2065673A1 Preignition warning device |
| 12/23/1992 | EP0519588A1 A misfire detector for use in an internal combustion engine |
| 12/23/1992 | EP0519046A1 Ionization control for automotive ignition system. |
| 12/23/1992 | CN2125726U Probe polar for ignition character dynamic testing current |
| 12/08/1992 | US5170125 Tester for the ignition module of a vehicle |
| 12/08/1992 | US5168859 Method and apparatus for judging misfire in internal combustion engine |
| 11/26/1992 | WO1992020912A1 Method and device for detection of ignition failures in an internal combustion engine cylinder |
| 11/26/1992 | DE4210051A1 HV measurement, esp. for motor vehicle ignition systems - using probe in form of open base transistor with emitter and collector connected to supply via current limiting resistor |
| 11/19/1992 | EP0513996A1 A misfire detector for use with an internal combustion engine |
| 11/19/1992 | EP0513995A1 A misfire detector for use in internal combustion engine |
| 11/17/1992 | US5163316 Apparatus for detecting flameout of internal combustion engine |
| 11/12/1992 | WO1992019863A1 Ignition system for internal combustion engines |
| 11/12/1992 | DE4115032A1 Elektronisches system in einem kraftfahrzeug zur erkennung einer schlechtwegstrecke An electronic system in a motor vehicle for the detection of a distance-bad |
| 11/12/1992 | DE4114797A1 Determining working stroke in four stroke IC engine - using crank angle and cylinder pressure sensors for signalling monitor unit and referencing engine controller |