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Class Information
Number: 123/677
Name: Internal-combustion engines > Charge forming device (e.g., pollution control) > Including exhaust gas condition responsive means > Combined with ambient condition responsive means (e.g., pressure)
Description: Subject matter wherein the control means is also responsive to an atmospheric characteristic or parameter.










Sub-classes under this class:

Class Number Class Name Patents
123/678 Ambient temperature responsive 34


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8631786 Method, systems and sensor for detecting humidity Jan. 21, 2014
8588999 Method and system for engine emission control Nov. 19, 2013
8459243 Method, systems and sensor for detecting humidity Jun. 11, 2013
8315759 Humidity sensor diagnostic systems and methods Nov. 20, 2012
8296042 Humidity detection via an exhaust gas sensor Oct. 23, 2012
8121774 Exhaust gas recirculation system and method of operating such system Feb. 21, 2012
7945371 Method and device for determining the ambient pressure by means of a charge pressure sensor in a turbocharged engine May. 17, 2011
7856967 Method of determining ambient pressure for fuel injection Dec. 28, 2010
7597087 Controller of internal combustion engine Oct. 6, 2009
7597093 Humidity based control system for an internal combustion engine Oct. 6, 2009
7516618 Engine air supply control method which is intended, for example, for the control of a turbocharged engine Apr. 14, 2009
7398775 Detection of a humidity sensor failure in an internal combustion engine Jul. 15, 2008
7363911 Humidity-based combustion control in a multiple combustion mode engine Apr. 29, 2008
7296562 Control system and method for estimating turbocharger performance Nov. 20, 2007
7246604 Engine control advantageously using humidity Jul. 24, 2007
7104228 Engine with variable cam timing and control advantageously using humidity sensor Sep. 12, 2006
7040287 Fuel dosage device May. 9, 2006
7025042 Methods of operation for controlled temperature combustion engines using gasoline-like fuel, particularly multicylinder homogenous charge compression ignition (HCCI) engines Apr. 11, 2006
7004125 Valve train system of internal combustion engine and control method thereof Feb. 28, 2006
6925376 System for diagnosing operation of a cooling system for an internal combustion engine Aug. 2, 2005
6918362 Engine with variable cam timing and control advantageously using humidity sensor Jul. 19, 2005
6886336 Method for controlling condensate formation in an engine system May. 3, 2005
6868327 Device for estimating an amount of intake air of an internal combustion engine Mar. 15, 2005
6863057 Fuel vapor treatment system Mar. 8, 2005
6775623 Real-time nitrogen oxides (NOx) estimation process Aug. 10, 2004
6725847 Condensation protection AECD for an internal combustion engine employing cooled EGR Apr. 27, 2004
6666191 Control apparatus for internal combustion engine Dec. 23, 2003
6662795 Method and apparatus configured to maintain a desired engine emissions level Dec. 16, 2003
6591811 Device for controlling an internal combustion engine Jul. 15, 2003
6116228 Control for engine Sep. 12, 2000
5983874 Air-fuel ratio control system for internal combustion engines Nov. 16, 1999
5845627 Internal combustion engine pneumatic state estimator Dec. 8, 1998
5774822 Fuel metering control system for internal combustion engine Jun. 30, 1998
5762055 Air-to-fuel ratio control apparatus for an internal combustion engine Jun. 9, 1998
5606959 Fuel metering control system for internal combustion engine Mar. 4, 1997
5580440 Air fuel ratio sensory Dec. 3, 1996
5558072 Apparatus for disposing of fuel-vapor Sep. 24, 1996
5391284 Arrangement for determining the lambda value of an air/fuel mixture Feb. 21, 1995
5072712 Method and apparatus for setting a tank venting valve Dec. 17, 1991
5067465 Lean burn internal combustion engine Nov. 26, 1991
5016596 Air-fuel ratio control method for internal combustion engines May. 21, 1991
4993393 Air-fuel ratio feedback control method for internal combustion engines Feb. 19, 1991
4926828 Air-fuel ratio feedback control method for internal combustion engines May. 22, 1990
4877006 Air-fuel ratio control method for internal combustion engines Oct. 31, 1989
4872117 Apparatus for controlling an air-fuel ratio in an internal combustion engine Oct. 3, 1989
4854287 Apparatus for learning and controlling air/fuel ratio in internal combustion engine Aug. 8, 1989
4694803 Air-fuel ratio control system for an internal combustion engine with an atmospheric pressure responsive correction operation Sep. 22, 1987
4651700 Method and apparatus for controlling air-fuel ration in internal combustion engine Mar. 24, 1987
4602601 Method and apparatus for controlling idling speed of internal combustion engine Jul. 29, 1986
4526148 Air-fuel ratio control system for an internal combustion engine Jul. 2, 1985

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