Inventor
GWIDT J MICHAEL
US23 patents
⚠️ This page may combine multiple inventors who share the name “GWIDT J MICHAEL”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GM GLOBAL TECH OPERATIONS LLC
18 patentsUS9650981B1May 16, 2017
Adjustment of measured oxygen storage capacity based on upstream O2 sensor performance
GM GLOBAL TECH OPERATIONS LLC25 citations86
US11661902B1May 30, 2023
Port-direct injection engine systems and methods using ethanol-gasoline fuels
GM GLOBAL TECH OPERATIONS LLC3 citations72
US10001073B2Jun 19, 2018
Systems and methods for multiple catalyst light off events during drive cycle
GM GLOBAL TECH OPERATIONS LLC4 citations69
US10823101B1Nov 3, 2020
System and method for learning an injector compensation
GM GLOBAL TECH OPERATIONS LLC3 citations68
US12384218B1Aug 12, 2025
Smart vehicle systems and control logic with tire change modes for vehicles with adjustable ride height suspensions
GM GLOBAL TECH OPERATIONS LLC1 citations61
US12140098B1Nov 12, 2024
Systems and methods for service regeneration of a particulate filter
GM GLOBAL TECH OPERATIONS LLC0 citations61
US11852089B1Dec 26, 2023
Systems and methods for improved catalytic converter performance during cold starts
GM GLOBAL TECH OPERATIONS LLC0 citations61
US11754013B1Sep 12, 2023
Enhanced minimum mass limit for direct injection engines
GM GLOBAL TECH OPERATIONS LLC0 citations58
US11686264B1Jun 27, 2023
Scavenging for particulate filter regeneration
GM GLOBAL TECH OPERATIONS LLC1 citations58
US11578677B1Feb 14, 2023
Method and system for diagnosing cold start emission reduction
GM GLOBAL TECH OPERATIONS LLC0 citations57
US11614042B1Mar 28, 2023
Compression ratio methods and systems for particulate filter regeneration
GM GLOBAL TECH OPERATIONS LLC0 citations56
US11466641B1Oct 11, 2022
Modifying PFI to DI ratio to mitigate engine knocking
GM GLOBAL TECH OPERATIONS LLC1 citations53
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
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
US11668259B1Jun 6, 2023
Port-direct injection engine methods and systems optimizing fuel economy with particulate control
GM GLOBAL TECH OPERATIONS LLC0 citations46
US12122354B2Oct 22, 2024
Method and system for controlling cold start emission reduction
GM GLOBAL TECH OPERATIONS LLC0 citations42
US11852091B1Dec 26, 2023
Idle mode for engines with port fueld injection (PFI) and direct injection (DI) fuel systems
GM GLOBAL TECH OPERATIONS LLC0 citations41
GM GLOBAL TECH OPERATIONS INC
4 patentsUS8973429B2Mar 10, 2015
System and method for detecting stochastic pre-ignition
GM GLOBAL TECH OPERATIONS INC4 citations72
US9115684B2Aug 25, 2015
Engine startup control systems and methods
GM GLOBAL TECH OPERATIONS INC0 citations51
US9376975B2Jun 28, 2016
Stochastic pre-ignition prediction and mitigation systems and methods
GM GLOBAL TECH OPERATIONS INC0 citations49
US9217386B2Dec 22, 2015
System and method for preventing stochastic pre-ignition
GM GLOBAL TECH OPERATIONS INC0 citations49