Inventor
SHAFTO ROBERT DOUGLAS
US15 patents
⚠️ This page may combine multiple inventors who share the name “SHAFTO ROBERT DOUGLAS”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MA QI
8 patentsUS8392097B2Mar 5, 2013
Method for starting an internal combustion engine within a hybrid powertrain
MA QI9 citations84
US8892339B2Nov 18, 2014
Transmission load predicting system for a stop-start system and a hybrid electric vehicle
MA QI12 citations83
US8855896B2Oct 7, 2014
Intake manifold refill and holding control systems and methods
MA QI12 citations83
US8694231B2Apr 8, 2014
Vehicle rollback control systems and methods
MA QI7 citations83
US8543318B2Sep 24, 2013
Controlled engine shutdown system for a stop-start system and a hybrid electric vehicle
MA QI11 citations83
US8442747B2May 14, 2013
Cylinder air mass prediction systems for stop-start and hybrid electric vehicles
MA QI17 citations83
US8972150B2Mar 3, 2015
Selective cylinder disablement control systems and methods
MA QI4 citations72
US8635987B2Jan 28, 2014
Engine speed control systems and methods
MA QI5 citations72
GM GLOBAL TECH OPERATIONS INC
3 patentsUS7654248B2Feb 2, 2010
Cylinder torque balancing for internal combustion engines
GM GLOBAL TECH OPERATIONS INC23 citations90
US7809490B2Oct 5, 2010
Phase and frequency error based asymmetrical AFR pulse reference tracking algorithm using the pre-catalyst O2 sensor switching output
GM GLOBAL TECH OPERATIONS INC11 citations82
US9249750B2Feb 2, 2016
System and method for controlling fuel injection when an engine is automatically started to decrease an engine startup period
GM GLOBAL TECH OPERATIONS INC2 citations62