US Patent No: 5,111,790

Number of patents in Portfolio can not be more than 2000

Direct fire ignition system having individual knock detection sensor

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Importance

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Abstract

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A direct fire ignition system for an internal combustion engine having a coil assembly attachable to each spark plug. Each coil assembly has a high voltage transformer for producing a voltage sufficient to cause the spark plug to generate a spark, an integral capacitor parallel with the spark plug, and a spark plug sensor circuit coupling to the high voltage transformer for generating a spark confirmation signal when a spark is generated. The spark sensor circuit is responsive to a high frequency signal generated in the high voltage transformer within a predetermined frequency range to generate the spark confirmation signal. The direct fire ignition system is compatible with single strike or multi-strike modes of operation. The system can also generate a probe voltage across the spark plug to test for auto or pre-ignition.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
PRESTOLITE WIRE CORPORATIONSOUTHFIELD, MI5

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Grandy, Mark E Port Huron, MI 7 217

Cited Art Landscape

Patent Info (Count) # Cites Year
 
AISIN SEIKI KABUSHIKI KAISHA (1)
* 4,382,430 Ignition system 7 1981
 
MAGNETI MARELLI S.P.A. (1)
* 4,825,844 Ignition system for an internal combustion engine 10 1986
 
Chrysler Motors Corporation (1)
* 4,846,129 Ignition system improvements for internal combustion engines 43 1988
 
DAIMLER-BENZ AKTIENGESELLSCHAFT (1)
* 4,547,734 Equipment for recognizing misfiring 27 1983
 
NISSAN MOTOR CO., LTD. (2)
* 4,502,454 Ignition system for an internal combustion engine 35 1982
* 5,003,958 Ignition coil mounting structure for engine 27 1989
 
TEMIC AUTOMOTIVE OF NORTH AMERICA, INC. (1)
* 4,886,029 Ignition misfire detector 53 1988
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
UNISON INDUSTRIES, LLC (1)
* 5,572,135 Diagnostic apparatus and methods for ignition circuits 2 1994
 
CHRYSLER GROUP LLC (4)
* 5,411,006 Engine ignition and control system 13 1993
* 5,406,921 Misfire detection method 11 1993
* 5,377,652 Ignition transformer 10 1993
* 5,534,781 Combustion detection via ionization current sensing for a "coil-on-plug" ignition system 35 1994
 
Bauer Associates, Inc. (1)
* 2014/0111,213 APPARATUS AND METHOD FOR STATIC TESTING A SPARK PLUG ASSEMBLED IN AN INTERNAL COMBUSTION ENGINE INCLUDING CRACKED CERAMIC INSULATOR DETECTION 0 2012
 
DAIMLERCHRYSLER AG (1)
* 6,466,876 Measuring device for electrically decoupled function testing of working systems 2 2000
 
SAGEM SA (1)
* 6,259,344 Ignition component for internal combustion engines 2 1995
 
HOERBIGER KOMPRESSORTECHNIK HOLDING GMBH (1)
* 5,992,386 Method for knock control in combustion engines 19 1997
 
Honda Giken Kogyo Kabushiki Kaisha (2)
* 5,327,867 Misfire-detecting system for internal combustion engines 6 1993
* 5,438,970 High tension cord connector with misfire detecting capacitor for internal combustion engine 1 1993
 
DENSO CORPORATION (1)
* 6,675,785 Ignition device for an internal combustion engine 3 2003
 
COMAU, INC. (1)
* 6,426,626 Apparatus and method for testing an ignition coil and spark plug 12 1999
 
ROBERT BOSCH GMBH (2)
* 5,890,473 Ignition device for a multi-cylinder internal combustion engine 2 1998
* 7,066,163 Ignition system for an internal combustion engine 0 2005
 
Delphi Technologies, Inc. (1)
* 6,119,667 Integrated spark plug ignition coil with pressure sensor for an internal combustion engine 31 1999
 
THE OHIO STATE UNIVERSITY (1)
* 5,687,082 Methods and apparatus for performing combustion analysis in an internal combustion engine utilizing ignition voltage analysis 34 1995
 
SNAP-ON TECHNOLOGIES, INC. (2)
* 6,396,277 Coil on plug signal detection 30 1999
6,717,412 Ignition signal pickup interface box 7 2000
 
GENERAL MOTORS CORPORATION (1)
* 5,636,620 Self diagnosing ignition control 11 1996
 
Mitsubishi Denki Kabushiki Kaisha (1)
* 5,602,714 Ignition coil for internal combustion engine 0 1995
 
MICHIGAN SPRING & STAMPING OF MUSKEGON, LLC (2)
6,409,160 Methods of manufacturing coils and apparatus for same 2 2001
6,382,607 Methods of manufacturing coils and apparatus for same 0 2001
 
FORD GLOBAL TECHNOLOGIES, LLC (2)
* 5,333,593 Energy-on-demand ignition coil 2 1993
* 5,476,084 Energy-on-demand ignition coil 8 1994
* Cited By Examiner