Inventor

MATHEWS DAVID S

US30 patents

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

MATHEWS DAVID S

GM GLOBAL TECH OPERATIONS INC

Method and control system for controlling an engine function based on crankshaft acceleration

Pattern recognition for random misfire

Rough road detection system using normalization analysis

Cylinder torque balancing for internal combustion engines

Cylinder torque balancing for internal combustion engines

Misfire detection system for displacement on demand (DOD) engine

Cylinder pressure sensor diagnostic system and method

Synchronization diagnostic systems and methods for engine controllers

Method of crank signal disturbance compensation

Misfire detection apparatus for internal combustion engine based on piston speed

Engine misfire and rough road detection systems and methods

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

Rough road detection system

Method and system for collecting crankshaft position data

GEN MOTORS CORP

Methods and apparatus for sensing misfire in an internal combustion engine

Idle speed control using alternator

Method for controlling ignition timing for an internal combustion engine

GM GLOBAL TECH OPERATIONS LLC

Determination of engine parameter based on determining a metric over three or more cylinder combustion cycles

Systems and methods for determining indicated mean effective pressure

Vehicle torque compensation system

VERDEJO JULIAN R

Target wheel position detection systems

Systems and methods for determining crankshaft position based indicated mean effective pressure (IMEP)

(unassigned)

Sliding door stop

BOWMAN JOHN V

System and method for detecting misfire based on a firing pattern of an engine and engine torque

MATHEWS DAVID S

Cylinder combustion performance monitoring and control

PHILLIPS ANDREW W

Powertrain control system and methods with ECM-to-TCM parameter transfer protocols for TCM based control

KAISER JEFFREY M

Cylinder combustion performance monitoring and control with coordinated torque control

MORGAN JEFFREY A

System and method for estimating indicated mean effective pressure of cylinders in an engine

BUSLEPP KENNETH J

Stochastic pre-ignition detection systems and methods

CLINGERMAN BRUCE J

Fuel cell system water management strategy for freeze capability