Inventor
SIMPSON KENNETH M
US21 patents
⚠️ This page may combine multiple inventors who share the name “SIMPSON KENNETH M”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DELPHI TECH INC
19 patentsUS6321695B1Nov 27, 2001
Model-based diagnostic method for an engine cooling system
DELPHI TECH INC69 citations95
US7314034B1Jan 1, 2008
System for verifying cylinder deactivation status in a multi-cylinder engine
DELPHI TECH INC32 citations92
US6382017B1May 7, 2002
Evaporative emission leak detection method with vapor generation compensation
DELPHI TECH INC43 citations92
US6308119B1Oct 23, 2001
Preset diagnostic leak detection method for an automotive evaporative emission system
DELPHI TECH INC36 citations92
US6311548B1Nov 6, 2001
Method of validating a diagnostic leak detection test for a fuel tank
DELPHI TECH INC43 citations91
US7107134B1Sep 12, 2006
Method of determining a default transmission output speed
DELPHI TECH INC19 citations90
US6334355B1Jan 1, 2002
Enhanced vacuum decay diagnostic and integration with purge function
DELPHI TECH INC20 citations90
US7350512B1Apr 1, 2008
Method of validating a diagnostic purge valve leak detection test
DELPHI TECH INC36 citations86
US7147366B2Dec 12, 2006
Method and apparatus for assessing the rationality of a transmission fluid temperature measure
DELPHI TECH INC13 citations83
US7120531B1Oct 10, 2006
Method of determining a default transmission input speed
DELPHI TECH INC11 citations82
US6390077B1May 21, 2002
Adaptive flow restriction test method for an exhaust gas recirculation system
DELPHI TECH INC18 citations79
US7975536B2Jul 12, 2011
Method to detect the presence of a liquid-cooled engine supplemental heater
DELPHI TECH INC11 citations77
US7203617B1Apr 10, 2007
Method of diagnosing a low range limiting malfunction of an engine coolant temperature sensor
DELPHI TECH INC7 citations73
US7120535B2Oct 10, 2006
Method and apparatus to evaluate an intake air temperature monitoring circuit
DELPHI TECH INC9 citations70
US6546911B1Apr 15, 2003
Default methodology for recovering from loss of high resolution engine position signal
DELPHI TECH INC9 citations67
US6640621B2Nov 4, 2003
Diagnostic method for a shaft sensor in a reciprocating internal combustion engine
DELPHI TECH INC5 citations60
US9404463B2Aug 2, 2016
Method for performing evaporative emission system diagnostics on engines configured for stop-start operation
DELPHI TECH INC1 citations48
US8820152B2Sep 2, 2014
Diagnostic method for a refueling event detection system
DELPHI TECH INC0 citations46
US7647158B2Jan 12, 2010
Apparatus and method for diagnosing an airflow modifying control system
DELPHI TECH INC0 citations31