Inventor
HUTMACHER JEFFREY M
US16 patents
⚠️ This page may combine multiple inventors who share the name “HUTMACHER JEFFREY M”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GM GLOBAL TECH OPERATIONS LLC
11 patentsUS11661902B1May 30, 2023
Port-direct injection engine systems and methods using ethanol-gasoline fuels
GM GLOBAL TECH OPERATIONS LLC3 citations72
US10526992B2Jan 7, 2020
Method and system to detect and mitigate sensor degradation
GM GLOBAL TECH OPERATIONS LLC3 citations71
US10066576B2Sep 4, 2018
Dual injection during intake stroke for improved catalyst light off
GM GLOBAL TECH OPERATIONS LLC4 citations70
US10883436B2Jan 5, 2021
Method and system to control propulsion systems having sensor or actuator degradation
GM GLOBAL TECH OPERATIONS LLC2 citations69
US10914262B1Feb 9, 2021
Diagnostic methods and systems
GM GLOBAL TECH OPERATIONS LLC2 citations68
US11098666B1Aug 24, 2021
System and method for controlling amount of sulfur on three-way catalyst by limiting deceleration cylinder cut off
GM GLOBAL TECH OPERATIONS LLC0 citations60
US12281622B1Apr 22, 2025
Fuel control system for internal combustion engine having multiple injection systems
GM GLOBAL TECH OPERATIONS LLC0 citations51
US12140092B1Nov 12, 2024
Methods and systems for controlling fuel injection
GM GLOBAL TECH OPERATIONS LLC0 citations51
US12196148B1Jan 14, 2025
Dual fuel injector control method for a vehicle
GM GLOBAL TECH OPERATIONS LLC0 citations46
US11773791B1Oct 3, 2023
Multi-pulse fuel injection systems and control logic for port fuel injection pulse monitoring in engine assemblies
GM GLOBAL TECH OPERATIONS LLC0 citations46
US11236695B2Feb 1, 2022
Diagnostic methods and systems
GM GLOBAL TECH OPERATIONS LLC0 citations45
GM GLOBAL TECH OPERATIONS INC
3 patentsUS7793489B2Sep 14, 2010
Fuel control for robust detection of catalytic converter oxygen storage capacity
GM GLOBAL TECH OPERATIONS INC33 citations90
US8838316B2Sep 16, 2014
Method of controlling catalyst light-off of a hybrid vehicle
GM GLOBAL TECH OPERATIONS INC8 citations82
US7848874B2Dec 7, 2010
Control system and method for starting an engine with port fuel injection and a variable pressure fuel system
GM GLOBAL TECH OPERATIONS INC5 citations61