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Class Information
Number: 123/680
Name: Internal-combustion engines > Charge forming device (e.g., pollution control) > Including exhaust gas condition responsive means > Combined with engine condition responsive means > Idling responsive
Description: Subject matter wherein the control means is responsive to a no-load or minimum speed condition of the internal-combustion engine.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8335631 Method for accommodating extraneous loads during idle operation Dec. 18, 2012
8131453 Methods and systems for assisted direct start control Mar. 6, 2012
7933711 Methods and systems for assisted direct start control Apr. 26, 2011
7853399 Internal combustion engine control apparatus and method Dec. 14, 2010
7322339 Apparent torque reserve at idle for direct injected engines Jan. 29, 2008
7191771 Method for controlling an internal combustion engine having a lambda regulation Mar. 20, 2007
6976475 Method for detecting a leakage in the intake port of a combustion engine, and a combustion engine equipped for implementing the method Dec. 20, 2005
6850835 On engine trim for fuel injectors Feb. 1, 2005
6848418 External exhaust gas recirculation on board diagnostic using EGR effect on a combination of engine operating parameters Feb. 1, 2005
6820604 System with an offset learn function and a method of determining a throttle-position sensor offset Nov. 23, 2004
6684869 System and method for detecting an air leak in an engine Feb. 3, 2004
6609509 LPG-engine fuel control apparatus Aug. 26, 2003
6491032 Marine engine control system Dec. 10, 2002
6467471 Air-fuel ratio controller for an internal-combustion engine Oct. 22, 2002
6374812 Method of regenerating an activated-carbon canister Apr. 23, 2002
6308698 Method and apparatus for controlling fuel injection in diesel engine Oct. 30, 2001
6148611 Engine air-fuel ratio controller and control method Nov. 21, 2000
6098605 Method and apparatus for operation of an internal combustion engine in a true closed loop fuel control Aug. 8, 2000
6055971 Plateau linearization curves with proportional/integral/derivative control theory May. 2, 2000
6019093 Air-fuel ratio control system for internal combustion engines Feb. 1, 2000
5960773 Engine control apparatus Oct. 5, 1999
5950607 Evaporated fuel treatment device of an engine Sep. 14, 1999
5934248 Air-fuel ratio controller for internal combustion engine Aug. 10, 1999
5918583 Air-fuel ratio control device for internal combustion engine Jul. 6, 1999
5774822 Fuel metering control system for internal combustion engine Jun. 30, 1998
5720265 Fuel metering control system for internal combustion engine Feb. 24, 1998
5720266 Control system for a gaseous fuel internal combustion engine utilizing PID gain scheduling parameters Feb. 24, 1998
5685283 Air-fuel ratio control system for engine Nov. 11, 1997
5638800 Method and apparatus for controlling air-fuel ratio learning of an internal combustion engine Jun. 17, 1997
5615660 Engine air-fuel ratio controller Apr. 1, 1997
5611319 Air fuel ratio control system for engine with fuel vapor recovery system Mar. 18, 1997
5606959 Fuel metering control system for internal combustion engine Mar. 4, 1997
5592387 Method of operating a natural gas vehicle as a function of ambient methane concentration Jan. 7, 1997
5575266 Method of operating gaseous fueled engine Nov. 19, 1996
5558075 Fuel metering control system for internal combustion engine Sep. 24, 1996
5483946 Engine control system with rapid catalyst warm-up Jan. 16, 1996
5469831 Fuel supply control system for an automotive engine Nov. 28, 1995
5381776 Air-fuel ratio control system for engine Jan. 17, 1995
5343701 Air-fuel ratio control system for internal combustion engine Sep. 6, 1994
5261382 Fuel injection system Nov. 16, 1993
5253630 Air-fuel ratio control system for internal combusion engines Oct. 19, 1993
5220904 Air-fuel ratio control system for internal combustion engines Jun. 22, 1993
5168859 Method and apparatus for judging misfire in internal combustion engine Dec. 8, 1992
5150696 Adaptive memory control for normalized dilution Sep. 29, 1992
5095878 Air/fuel ratio control system for internal combustion engine Mar. 17, 1992
5065727 Air/fuel ratio control system for internal combustion engine Nov. 19, 1991
5033440 Apparatus for controlling air/fuel ratio of internal combustion engine Jul. 23, 1991
4895122 Air-fuel ratio feedback control method for internal combustion engines Jan. 23, 1990
4805578 Air-Fuel ratio control system for internal combustion engine Feb. 21, 1989
4796589 Air-fuel ratio feedback control method for internal combustion engines Jan. 10, 1989

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