Inventor
ZETTEL ANDREW M
CA47 patents
⚠️ This page may combine multiple inventors who share the name “ZETTEL ANDREW M”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GM GLOBAL TECH OPERATIONS INC
23 patentsUS7639018B2Dec 29, 2009
Method and apparatus for predicting change in an operating state of an electric energy storage device
GM GLOBAL TECH OPERATIONS INC20 citations93
US7557583B2Jul 7, 2009
System and method for monitoring an electrical power relay in a hybrid electric vehicle
GM GLOBAL TECH OPERATIONS INC36 citations91
US7974749B2Jul 5, 2011
Belt slip diagnostic system for accessory and hybrid electric drives
GM GLOBAL TECH OPERATIONS INC21 citations88
US7848902B2Dec 7, 2010
Method and apparatus for monitoring a thermal management system of an electro-mechanical transmission
GM GLOBAL TECH OPERATIONS INC11 citations84
US7730984B2Jun 8, 2010
Method and apparatus for control of a hybrid electric vehicle to achieve a target life objective for an energy storage device
GM GLOBAL TECH OPERATIONS INC18 citations84
US7638980B2Dec 29, 2009
Method and apparatus for determining the effect of temperature upon life expectancy of an electric energy storage device in a hybrid electric vehicle
GM GLOBAL TECH OPERATIONS INC14 citations84
US7550946B2Jun 23, 2009
Method and apparatus for real-time life estimation of an electric energy storage device in a hybrid electric vehicle
GM GLOBAL TECH OPERATIONS INC16 citations84
US7538520B2May 26, 2009
Method and apparatus for quantifying quiescent period temperature effects upon an electric energy storage device
GM GLOBAL TECH OPERATIONS INC15 citations84
US7570022B2Aug 4, 2009
Variable battery refresh charging cycles
GM GLOBAL TECH OPERATIONS INC11 citations83
US8918240B2Dec 23, 2014
Method for operating hybrid vehicle
GM GLOBAL TECH OPERATIONS INC16 citations82
US7867135B2Jan 11, 2011
Electro-mechanical transmission control system
GM GLOBAL TECH OPERATIONS INC10 citations82
US8005632B2Aug 23, 2011
Method and apparatus for detecting faults in a current sensing device
GM GLOBAL TECH OPERATIONS INC7 citations81
US7869924B2Jan 11, 2011
Method and apparatus to monitor a flow management valve of an electro-mechanical transmission
GM GLOBAL TECH OPERATIONS INC12 citations80
US8357074B2Jan 22, 2013
Electro-mechanical transmission control system
GM GLOBAL TECH OPERATIONS INC5 citations71
US7647205B2Jan 12, 2010
Method and apparatus for management of an electric energy storage device to achieve a target life objective
GM GLOBAL TECH OPERATIONS INC5 citations63
US7598712B2Oct 6, 2009
Method and apparatus for real-time life estimation of an electric energy storage device
GM GLOBAL TECH OPERATIONS INC5 citations63
US7878932B2Feb 1, 2011
Method and apparatus to monitor a valve adapted to control mode to gear transitions during operation of an electro-mechanical transmission
GM GLOBAL TECH OPERATIONS INC4 citations60
US7544151B2Jun 9, 2009
Method and apparatus to monitor operation of an auxiliary hydraulic pump in a transmission
GM GLOBAL TECH OPERATIONS INC5 citations60
US9008891B2Apr 14, 2015
Temperature sensor rationalization
GM GLOBAL TECH OPERATIONS INC3 citations59
US8027771B2Sep 27, 2011
Method and apparatus to monitor an output speed sensor during operation of an electro-mechanical transmission
GM GLOBAL TECH OPERATIONS INC5 citations57
US8346424B2Jan 1, 2013
Method of monitoring in-use performance ratios of onboard diagnostic systems for plug-in hybrid electric vehicles
GM GLOBAL TECH OPERATIONS INC2 citations56
US9045134B2Jun 2, 2015
Method and systems for emissions compliant use of telematics inputs to a propulsion control system for function enablement
GM GLOBAL TECH OPERATIONS INC1 citations51
US9278684B2Mar 8, 2016
Method and system for controlling a hybrid vehicle
GM GLOBAL TECH OPERATIONS INC0 citations38
GM GLOBAL TECH OPERATIONS LLC
11 patentsUS10464547B2Nov 5, 2019
Vehicle with model-based route energy prediction, correction, and optimization
GM GLOBAL TECH OPERATIONS LLC24 citations91
US9857252B2Jan 2, 2018
Automated e-assist adjustment for an e-bike for elevation gains and loss
GM GLOBAL TECH OPERATIONS LLC12 citations81
US10507841B1Dec 17, 2019
System and method for sensor diagnostics
GM GLOBAL TECH OPERATIONS LLC9 citations79
US10124679B2Nov 13, 2018
Method and apparatus for recharging an energy storage device on a vehicle
GM GLOBAL TECH OPERATIONS LLC3 citations71
US9428073B2Aug 30, 2016
System and method of monitoring a performance level of a battery
GM GLOBAL TECH OPERATIONS LLC2 citations62
US11967851B2Apr 23, 2024
Electrified powertrain with method for determining battery limits based on cell factors
GM GLOBAL TECH OPERATIONS LLC1 citations57
US11305752B2Apr 19, 2022
Method and apparatus for emissions mitigation on a hybrid vehicle
GM GLOBAL TECH OPERATIONS LLC0 citations56
US12263833B2Apr 1, 2025
Intelligent vehicle systems and control logic for intrusive detection of high-voltage pathway failures
GM GLOBAL TECH OPERATIONS LLC0 citations48
US12481004B2Nov 25, 2025
Systems and methods for monitoring a state of health of a battery system of an electric vehicle
GM GLOBAL TECH OPERATIONS LLC0 citations46
US12491792B2Dec 9, 2025
Systems and methods for monitoring high voltage exposure hours of a high voltage system of an electric vehicle
GM GLOBAL TECH OPERATIONS LLC0 citations44
US9527495B2Dec 27, 2016
Vehicle systems and methods with improved heating performance
GM GLOBAL TECH OPERATIONS LLC0 citations41
ZETTEL ANDREW M
3 patentsUS8091667B2Jan 10, 2012
Method for operating a hybrid electric powertrain based on predictive effects upon an electrical energy storage device
ZETTEL ANDREW M14 citations83
US8281885B2Oct 9, 2012
Method and apparatus to monitor rotational speeds in an electro-mechanical transmission
ZETTEL ANDREW M9 citations82
US8634985B2Jan 21, 2014
Method of detecting an in-range failure of a brake pedal position sensor
ZETTEL ANDREW M5 citations67
MARTINI RYAN D
3 patentsUS8066615B2Nov 29, 2011
Method and apparatus to detect a mode-gear mismatch during operation of an electro-mechanical transmission
MARTINI RYAN D3 citations58
US8393996B2Mar 12, 2013
Method and apparatus to detect a mode-gear mismatch during operation of an electro-mechanical transmission
MARTINI RYAN D0 citations49
US8298116B2Oct 30, 2012
Method and apparatus to detect a mode-gear mismatch during steady state operation of an electro-mechanical transmission
MARTINI RYAN D0 citations39