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Class Information
Number: 123/406.26
Name: Internal-combustion engines > Spark ignition timing control > Electronic control > Closed loop feedback control of spark timing > Combustion condition responsive
Description: Subject matter wherein the regulating means senses a characteristic or parameter indicative of the state of burning of the combustible mixture (e.g., temperature, pressure, etc.) and uses such information to modify spark ignition timing.

Sub-classes under this class:

Class Number Class Name Patents
123/406.28 Combustion condition sensed by optical sensor 32
123/406.27 Combustion failure responsive (e.g., misfire) 64
123/406.41 Engine cylinder pressure responsive 72
123/406.29 Engine knock responsive 148

Patents under this class:
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Patent Number Title Of Patent Date Issued
8688357 Control device for internal combustion engine Apr. 1, 2014
8635005 Control device of internal combustion engine Jan. 21, 2014
8626372 Systems and methods for diagnosing an engine Jan. 7, 2014
8567372 Ignition system Oct. 29, 2013
8555831 Method for operating a two-stroke engine Oct. 15, 2013
8555857 Method and apparatus for controlling spark timing in an internal combustion engine Oct. 15, 2013
8547104 Self power for ignition coil with integrated ion sense circuitry Oct. 1, 2013
8538626 Systems and methods for diagnosing an engine Sep. 17, 2013
8469002 Combustion phasing control in spark-assisted HCCI combustion mode Jun. 25, 2013
8447498 Control device for internal combustion engine May. 21, 2013
8439012 Method and system for engine control May. 14, 2013
8401762 Engine control system with algorithm for actuator control Mar. 19, 2013
8392094 Control apparatus for an internal combustion engine Mar. 5, 2013
8370065 Engine control system with algorithm for actuator control Feb. 5, 2013
8326517 Control device for internal combustion engine Dec. 4, 2012
8297256 Ignition control system for internal combustion engines Oct. 30, 2012
8191532 Method and system for detecting and reducing engine auto-ignition Jun. 5, 2012
8176893 Engine combustion control using ion sense feedback May. 15, 2012
8132556 Ignition energy management with ion current feedback to correct spark plug fouling Mar. 13, 2012
8122868 Method and system for estimating and reducing engine auto-ignition and knock Feb. 28, 2012
7971571 Operation control method on the basis of ion current in internal combustion engine Jul. 5, 2011
7836864 Internal-combustion-engine combustion condition detection apparatus and combustion condition detection method Nov. 23, 2010
7810469 Combustion control based on a signal from an engine vibration sensor Oct. 12, 2010
7798123 Internal combustion engine control device Sep. 21, 2010
7774110 Failure diagnosis apparatus for vehicle Aug. 10, 2010
7735465 Method for operating an internal combustion engine Jun. 15, 2010
7673614 Internal-combustion-engine combustion condition detection apparatus and combustion condition detection method Mar. 9, 2010
7624718 Engine control system, vehicle having the same, method for calculating combustion center of gravity, and method for controlling engine Dec. 1, 2009
7597093 Humidity based control system for an internal combustion engine Oct. 6, 2009
7472686 Control apparatus and method and engine control unit for internal combustion engine Jan. 6, 2009
7325528 Method of operating a single cylinder two-stroke engine Feb. 5, 2008
7318411 Adaptive ignition dwell based on ionization feedback Jan. 15, 2008
7302932 Pre-ignition detection and mitigation Dec. 4, 2007
7246597 Method and apparatus to operate a homogeneous charge compression-ignition engine Jul. 24, 2007
7121260 Ignition timing control apparatus for engine Oct. 17, 2006
7021285 Control device for internal combustion engine Apr. 4, 2006
6994073 Method and apparatus for detecting ionization signal in diesel and dual mode engines with plasma discharge system Feb. 7, 2006
6968825 Control device for spark-ignition engine Nov. 29, 2005
6955157 System for engine retard limit control Oct. 18, 2005
6931836 Method for NOx reduction of externally-ignited, explosion, internal combustion engines Aug. 23, 2005
6883497 Method of preventing preignition for an internal combustion engine Apr. 26, 2005
6845753 System and method for controlling ignition timing in an engine Jan. 25, 2005
6832472 Method and apparatus for controlling exhausted gas emissions during cold-start of an internal combustion engine Dec. 21, 2004
6763297 Displacement on demand spark knock detection Jul. 13, 2004
6687591 Method of and apparatus for controlling torque-down upon gear changing Feb. 3, 2004
6684851 Method for determining a functioning parameter of an engine Feb. 3, 2004
6670722 Boat ignition safety apparatus and method Dec. 30, 2003
6644274 Apparatus for detecting a condition of burning in an internal combustion engine Nov. 11, 2003
6611145 Motorcycle having a system for combustion diagnostics Aug. 26, 2003
6584955 Method and device for phase recognition in a 4-stroke Otto engine with ion flow measurement Jul. 1, 2003

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