| Patents for F02P 5 - Advancing or retarding electric ignition spark; Control therefor (9,022) |
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| 06/11/1991 | US5022370 Internal combustion engine |
| 06/11/1991 | US5022362 Ignition timing controlling apparatus for internal combustion engine |
| 06/06/1991 | DE3939643A1 Electronic engine tuner for motor vehicle - has microprocessor in timing signal circuit with programmable operation |
| 06/05/1991 | EP0429695A1 Control apparatus, particulary for controlling functions of a vehicle |
| 06/04/1991 | US5020506 Engine igniter |
| 06/04/1991 | US5020501 Control system for an internal combustion engine |
| 06/04/1991 | US5020497 Method for controlling ignition timing of an engine for marine vessels |
| 05/29/1991 | EP0281585B1 Device for adapting the carburettor and ignition system of an internal combustion engine to all common grades of fuel for petrol engines |
| 05/29/1991 | DE3939100A1 Knock-sensitive electronic ignition for vehicular combustion engine - uses centrally controlled pulse train with timing delay introduced by control section very close to coil |
| 05/29/1991 | CN2077910U Auto-control ignator with the function saving fuel for automobiles |
| 05/28/1991 | US5018493 Engine spark control apparatus |
| 05/21/1991 | US5016591 System and method for controlling a combustion state in a multi-cylinder engine for a vehicle |
| 05/21/1991 | US5016590 System for controlling ignition timing of an internal combustion engine |
| 05/14/1991 | US5016181 Method and system for an engine ignition timing control |
| 05/14/1991 | US5014670 Spark ignition timing control system for internal combustion engine |
| 05/14/1991 | US5014669 System and method for controlling ignition timing for internal combustion engine having cylinder banks |
| 05/14/1991 | US5014665 R.P.M. - limiting circuit of an i.c. engine |
| 05/07/1991 | US5012782 Engine control system |
| 05/07/1991 | US5012779 Engine rotation control device |
| 05/02/1991 | EP0424883A2 Motor vehicle transmission system |
| 05/02/1991 | EP0424630A2 Method and apparatus for detecting combustion condition in an internal combustion engine and method and apparatus for controlling an internal combustion engine by using the above method and apparatus |
| 05/01/1991 | CN2076169U Microcomputerized ignition timing control system for gasoline engine |
| 04/30/1991 | US5012422 Controlling engine fuel injection |
| 04/30/1991 | US5010864 Ignition timing control apparatus for an internal combustion engine |
| 04/30/1991 | US5010863 Apparatus for preventing engine from stalling |
| 04/24/1991 | EP0423130A1 Method and apparatus for measuring detonation in an internal combustion engine. |
| 04/23/1991 | US5009209 Ignition timing control circuit for an internal combustion engine |
| 04/18/1991 | WO1991005160A1 Apparatus for controlling the occurrence of engine knocking |
| 04/18/1991 | DE3934338A1 Recognition of ignition mistiming in four-stroke engine - relies on temporary alteration of parameters with monitoring of consequential effect on engine speed or knock |
| 04/16/1991 | US5007397 Ignition timing control device |
| 04/11/1991 | DE4030433A1 Cylinder recognition device for multi-cylinder IC engine - uses opto-electronic coupler to detect phase of rotation of disc corresp. to transmission of second pulse |
| 04/10/1991 | EP0421952A1 Device for detecting pinking, cylinder by cylinder, in an internal combustion engine |
| 04/10/1991 | CN2074822U Automobile electronic lighter |
| 04/09/1991 | US5005549 Method and apparatus for recognizing a faulty combustion in an internal combustion engine |
| 04/09/1991 | US5005547 Abnormal combustion-detecting device and combustion control device for internal combustion engines |
| 04/03/1991 | EP0420445A2 A system and method for controlling ignition timing in combustion chamber of an internal combustion engine |
| 04/03/1991 | EP0419553A1 Method of operating an engine and measuring certain engine parameters |
| 04/02/1991 | US5003951 Control apparatus for internal combustion engine |
| 04/02/1991 | US5003946 Engine spark control apparatus |
| 03/26/1991 | US5002029 Method for controlling the firing angle of an internal-combustion engine |
| 03/21/1991 | DE4028325A1 Ignition timing circuit for engine - adjusts timing when fuel mixture is enriched for higher loads |
| 03/19/1991 | US5001645 Adaptive control system for an engine |
| 03/19/1991 | US5001642 Motor vehicles |
| 03/19/1991 | US5000150 Method for controlling ignition timing of an internal combustion engine |
| 03/19/1991 | US5000149 Method for controlling ignition timing of an internal combustion engine |
| 03/19/1991 | US5000148 System and method for controlling ignition of internal combustion engine for vehicle |
| 03/19/1991 | US5000147 Idling speed regulating system |
| 03/13/1991 | EP0416856A2 Diagnosis system and optimum control system for internal combustion engine |
| 03/13/1991 | EP0416559A2 Knock detecting system for internal combustion engine using heat quantities |
| 03/12/1991 | US4998521 Ignition timing control for outboard motor |
| 03/07/1991 | WO1991003015A1 Electronic counting device |
| 03/07/1991 | DE3546684C2 Operating communication bus network for processors |
| 03/07/1991 | DE3546683C2 Operating communication bus network for processors |
| 03/07/1991 | DE3546664C2 Operating communication bus network for processors |
| 03/07/1991 | DE3546662C2 Operating communication bus network for processors |
| 03/05/1991 | US4996964 Backup apparatus for ignition and fuel system |
| 03/05/1991 | US4996959 Ignition timing control system for automotive engine |
| 03/05/1991 | US4996958 Ignition timing controlling apparatus for internal combustion engine |
| 02/21/1991 | WO1991002153A1 Fully electronic ignition device for an internal combustion engine |
| 02/20/1991 | EP0412963A1 Engine idle stabilization timing circuit |
| 02/19/1991 | US4993388 Spark ignition timing control system for internal combustion engine adapted to mixture fuel of more than one individual fuels having mutually different combustion characteristics |
| 02/19/1991 | US4993387 Knock control system for internal combustion engine |
| 02/19/1991 | US4993371 Internal combustion engine ignition system and cleaning device |
| 02/19/1991 | US4993283 Engine control system for vehicle with automatic transmission |
| 02/13/1991 | EP0412578A2 Combustion control method and apparatus for an internal combustion engine |
| 02/12/1991 | US4991554 Device for controlling ignition timing of engine |
| 02/12/1991 | US4991553 Engine controller equipped with knocking detector |
| 02/07/1991 | DE3925224A1 Ignition method for IC engine esp. in lawn-mower or chain saw |
| 02/06/1991 | EP0411292A2 Ignition system with magnetogenerator for combustion engines |
| 01/29/1991 | US4987874 Control system for controlling spark timing of engine |
| 01/29/1991 | US4987873 Method for the dynamic correction of the ignition point of an internal combustion engine |
| 01/23/1991 | EP0408876A1 Control and extended operation of overheated IC engine |
| 01/22/1991 | US4987544 Engine control device for reducing the processing time of control variables |
| 01/22/1991 | US4986776 Marine shift speed equalizer |
| 01/22/1991 | US4986239 Ignition timing controller for internal combustion engine |
| 01/15/1991 | US4984546 Engine control apparatus |
| 01/08/1991 | US4982712 Ignition timing control system for an engine |
| 01/03/1991 | DE3933947C1 Combustion pressure determn. method for petrol-diesel engine - using acceleration sensors fitted at crankshaft bearings of engine in cylinder axial direction |
| 01/01/1991 | US4981126 Automotive engine |
| 01/01/1991 | US4981124 Method of operating a knock-controlled internal combustion engine |
| 12/25/1990 | US4979487 Ignition controlling apparatus for multi-cylinder internal combustion engine |
| 12/25/1990 | US4979477 Ignition circuit for a two-stroke engine |
| 12/19/1990 | EP0403212A2 Engine control system |
| 12/16/1990 | CA2013885A1 Extended over temperature operation and controls for ic engines |
| 12/13/1990 | WO1990015244A1 Device for adjusting the timing angle of an internal combustion engine |
| 12/13/1990 | WO1990015243A1 Process for detecting and evaluating knock signals in the individual cylinders of an internal combustion engine |
| 12/13/1990 | DE4018800A1 Control system for multi-cylinder vehicle engine - computes changes by monitoring at set points within one working cycle |
| 12/13/1990 | DE3919108A1 Verfahren zur steuerung eines betriebsparameters eines kraftfahrzeugs bei dynamischen betriebszustaenden A method of controlling an operating parameter of a motor vehicle for dynamic betriebszustaenden |
| 12/11/1990 | US4976241 Method for determining combustion condition in spark ignition internal combustion engine and combustion condition control device |
| 12/11/1990 | US4976240 Engine ignition system |
| 12/11/1990 | CA1277746C Ignition apparatus |
| 12/06/1990 | DE3917907A1 Klopfsignal-erfassungs- und auswerteverfahren zum betrieb eines otto-motors dicht unterhalb der klopfgrenze Knock signal detection and evaluation method for operating a spark-ignition engine just below the knock limit |
| 12/06/1990 | DE3917906A1 System zur einstellung des zuendwinkels einer brennkraftmaschine System for adjusting the ignition angle of an internal combustion engine |
| 12/06/1990 | DE3917905A1 IC engine efficiency optimisation system - uses detected engine knock and monitored air of engine cylinder working vol to adjust ignition timing |
| 11/28/1990 | EP0399068A1 Method for knocking control in combustion engines |
| 11/28/1990 | EP0398898A1 Fuel control system. |
| 11/27/1990 | US4972818 Control apparatus of internal combustion engine |
| 11/22/1990 | DE4016127A1 Setting ignition timing of IC engine - using predetermined reference data, engine condition and ambient sensors to optimise ignition timing for max. smooth torque |
| 11/22/1990 | DE4015759A1 Verfahren und vorrichtung zum einstellen des zuendzeitpunktes einer brennkraftmaschine To adjust the ignition timing method and apparatus of internal combustion engine |
| 11/22/1990 | DE4014893A1 Zuendzeitpunkt-einstellsystem fuer eine brennkraftmaschine Ignition timing adjuster for an internal combustion engine |