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Class Information
Number: 123/406.18
Name: Internal-combustion engines > Spark ignition timing control > Electronic control > With fail-safe, backup or malfunction detecting means > Engine shaft rotational position sensor malfunction responsive (e.g., crank shaft, cam shaft)
Description: Subject matter wherein (a) the engine includes an elongated member located in the engine block or in the cylinder head which continuously


Patents under this class:
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Patent Number Title Of Patent Date Issued
7607415 Method of crank signal disturbance compensation Oct. 27, 2009
7428459 Apparatus for controlling an engine using a cam signal Sep. 23, 2008
7353803 Misfire detection apparatus for internal combustion engine based on piston speed Apr. 8, 2008
7325528 Method of operating a single cylinder two-stroke engine Feb. 5, 2008
7305871 Cylinder discriminating device and method thereof, and engine ignition control device and method thereof Dec. 11, 2007
7197391 Method and apparatus for controlling an engine using a cam signal Mar. 27, 2007
7027907 Sequence scheduling control for a fuel injected engine Apr. 11, 2006
7023214 Sensor for ignition timing device Apr. 4, 2006
6990405 Engine control device Jan. 24, 2006
6898510 Method of controlling an internal combustion engine May. 24, 2005
6895931 Method of determining the crankshaft position of an internal combustion engine May. 24, 2005
6880525 Ignition circuit having RPM limitation for an internal combustion engine Apr. 19, 2005
6874473 Engine cycle recognition for fuel delivery Apr. 5, 2005
6834216 Method and apparatus for the automatic synchronization of dynamic angular and time domain control systems Dec. 21, 2004
6805110 Ignition control method and apparatus of an engine Oct. 19, 2004
6805096 Cylinder judgment apparatus and cylinder judgment method of engine Oct. 19, 2004
6778899 Process and control unit for determining the crankshaft angle of an engine and drive train Aug. 17, 2004
6775611 Engine control apparatus Aug. 10, 2004
6745748 Fail-safe system for combustion engine control Jun. 8, 2004
6727686 Method and device for detecting incorrect polarity in a signal transducer formed as an inductive sensor Apr. 27, 2004
6675772 Method and system for controlling an internal combustion engine when such engine loses a primary crankshaft position sensor Jan. 13, 2004
6662781 Method and device for electronic spark control in the event of the failure of the phase detector Dec. 16, 2003
6644273 Internal combustion engine control apparatus Nov. 11, 2003
6588404 Redundant sensor with cylinder shutdown Jul. 8, 2003
6505128 Apparatus and method for judging cylinders of an engine Jan. 7, 2003
6473687 Engine control unit operable with different clocks based on crank signal system operation Oct. 29, 2002
6446602 Cylinder identifying system for internal combustion engine Sep. 10, 2002
6324488 Process and arrangement for recognizing the rotating direction of an internal-combustion engine Nov. 27, 2001
6302085 Apparatus and method for detecting crank angle of engine Oct. 16, 2001
6223722 Apparatus and method for controlling an ignition timing in an internal combustion engine May. 1, 2001
6170462 Electronic control unit for internal combustion engine Jan. 9, 2001
6019086 Redundant sensor apparatus for determining engine speed and timing values Feb. 1, 2000
5924404 Cylinder-specific spark ignition control system for direct fuel injected two-stroke engine Jul. 20, 1999
5823166 Apparatus for monitoring the cylinders of a multi-cylinder internal combustion engine Oct. 20, 1998
5816218 Multi-cylinder engine control Oct. 6, 1998
5647322 Internal combustion engine control apparatus Jul. 15, 1997
5632246 Control apparatus for internal combustion engine May. 27, 1997
5630396 Apparatus for generating control signal for controlling operation of internal combustion engine May. 20, 1997
5584274 Apparatus for controlling operation timing of internal combustion engine Dec. 17, 1996
5572973 Method for cylinder identification in an internal combustion engine when idling Nov. 12, 1996
5494017 Ignition control apparatus and method for a multi-cylinder two cycle engine Feb. 27, 1996
5343842 Control apparatus for internal combustion engine Sep. 6, 1994
5325833 Control apparatus for internal combustion engine Jul. 5, 1994
5239962 Engine control apparatus for a multi-cylinder engine Aug. 31, 1993
5213079 Ignition timing control apparatus May. 25, 1993
5209202 Multiple functions cam sensing May. 11, 1993
5060614 Ignition timing control system for an engine having backup function for failure Oct. 29, 1991
4966116 Electronic control ignition system for internal combustion engines Oct. 30, 1990
4960092 Engine control system Oct. 2, 1990
4941446 Ignition and fuel injection back-up system for emergency running of internal combustion engines Jul. 17, 1990

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