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Inventor

MACEWEN IAN J

US12 patents
⚠️ This page may combine multiple inventors who share the name “MACEWEN IAN J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

GM GLOBAL TECH OPERATIONS INC

5 patents
US7987704B2Aug 2, 2011

Fuel system diagnostic systems and methods

GM GLOBAL TECH OPERATIONS INC26 citations92
US7793489B2Sep 14, 2010

Fuel control for robust detection of catalytic converter oxygen storage capacity

GM GLOBAL TECH OPERATIONS INC33 citations90
US9230371B2Jan 5, 2016

Fuel control diagnostic systems and methods

GM GLOBAL TECH OPERATIONS INC11 citations81
US7941265B2May 10, 2011

Individual cylinder fuel mass correction factor for high drivability index (HIDI) fuel

GM GLOBAL TECH OPERATIONS INC3 citations62
US7673621B2Mar 9, 2010

Learn correction feature for virtual flex fuel sensor

GM GLOBAL TECH OPERATIONS INC5 citations62

GM GLOBAL TECH OPERATIONS LLC

3 patents
US9874167B2Jan 23, 2018

Control systems and methods for air fuel imbalance and cylinder deactivation

GM GLOBAL TECH OPERATIONS LLC14 citations80
US10167803B2Jan 1, 2019

Systems and methods for performing prognosis of fuel delivery

GM GLOBAL TECH OPERATIONS LLC4 citations72
US9845759B2Dec 19, 2017

System and method for inducing a fuel system fault

GM GLOBAL TECH OPERATIONS LLC0 citations42

GEN MOTORS CORP

1 patent
US7159623B1Jan 9, 2007

Apparatus and methods for estimating vehicle fuel composition

GEN MOTORS CORP44 citations91

TURIN RAYMOND CLAUDE

1 patent
US8577645B2Nov 5, 2013

Air/fuel mixture imbalance diagnostic systems and methods

TURIN RAYMOND CLAUDE27 citations87

BAGNASCO ANDREW P

1 patent
US9217383B2Dec 22, 2015

Imbalance re-synchronization control systems and methods

BAGNASCO ANDREW P4 citations71

WANG WENBO

1 patent
US8670894B2Mar 11, 2014

Control system and method for sensor signal out of range detection

WANG WENBO2 citations61