Inventor

YOUNKINS MATTHEW A

US51 patents

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

YOUNKINS MATTHEW A

TULA TECHNOLOGY INC

Multi-level skip fire

System and method for safe valve activation in a dynamic skip firing engine

Lean burn internal combustion engine exhaust gas temperature control

Lean burn internal combustion engine exhaust gas temperature control

Valve fault detection

Multi-level skip fire

Multi-level skip fire

Cam phaser control

Multi-level skip fire

Multi-level skip fire

Using cylinder firing history for combustion control in a skip fire engine

Determination of a high pressure exhaust spring in a cylinder of an internal combustion engine

Misfire detection system

Hybrid vehicle with cylinder deactivation

Skip fire engine control

Valve fault detection

Hybrid powertrain control

Use of different pneumatic cylinder spring types in a variable displacement engine for engine and aftertreatment system temperature control

Internal combustion engine using variable valve lift and skip fire control

Dynamic valve control in a skip fire controlled engine

Internal combustion engine control for improved fuel efficiency

Methods of optimizing waveforms for electric motors

Noise/vibration reduction control

System for managing catalytic converter temperature

Separately determining firing density and pumping density during firing density transitions for a lean-burn internal combustion engine

Lean burn internal combustion engine exhaust gas temperature control

Determining firing density of a skip fire controlled lean-burn engine using air-fuel ratio and exhaust temperatures

Multi-level firing engine control

Noise/vibration control using variable spring absorber

System and method for safe valve activation in a dynamic skip firing engine

Dynamic valve control in a skip fire controlled engine

Autonomous driving with dynamic skip fire

Autonomous driving with dynamic skip fire

Split direct injection for reactivated cylinders of an internal combustion engine

Dynamic charge compression ignition engine with multiple aftertreatment systems

Skip fire valve control

Separately determining firing density and pumping density during firing density transitions for a lean-burn internal combustion engine

Lean burn internal combustion engine exhaust gas control

Use of different pneumatic cylinder spring types in a variable displacement engine for engine and aftertreatment system temperature control

Lean burn internal combustion engine exhaust gas control

Cylinder charge trapping strategies based on predictive number of skips and staggered implementation of valvetrain dependent operational strategies for internal combustion engines

Cylinder charge trapping strategies based on predictive number of skips and staggered implementation of valvetrain dependent operational strategies for internal combustion engines

Lean burn internal combustion engine exhaust gas temperature control

Separately determining firing density and pumping density during firing density transitions for a lean-burn internal combustion engine

Method and apparatus for maintaining the rotor D flux for pulsing induction machines and electrically excited synchronous electric machines

Dynamic charge compression ignition engine with multiple aftertreatment systems

Multi-level firing engine control

Noise/vibration reduction control

Autonomous driving with dynamic skip fire

BOYER BRAD

Multi-function throttle valve