Kenneth J. Cinpinski

Diagnostic systems and methods for a two-step valve lift mechanism

Diagnostic system and method for hydraulically-actuated cam phasers

Diagnostic system for valve actuation camshaft driven component compensation

Method and system for controlling a cam phaser

Two-step oil control valve diagnostic systems

Diagnostic systems and methods for variable lift mechanisms of engine systems having a camshaft driven fuel pump

Control of fuel pump by quantifying performance

Fuel pump control system and method

Camshaft position measurement and diagnosis

Direct injected fuel pump diagnostic systems and methods

Method and apparatus for controlling fuel rail pressure using fuel pressure sensor error

Fuel injector flow correction system for direct injection engines

Adaptive control of fuel delivery in direct injection engines

Solenoid diagnostic systems for cylinder deactivation control

Fuel injector diagnostic system and method for direct injection engine

Fuel temperature estimation in a spark ignited direct injection engine

Camshaft phasor synchronization system for an engine

Two-step oil control valve failure diagnostic

Late intake valve closing to improve cold startability for spark-ignition direct-injection (SIDI) engines

Multi-step valve lift failure mode detection

Camshaft phaser position control system

Predicted engine oil pressure

Adapter phasor control hold duty cycle system for an engine

Diagnostic system for valve actuation mechanism

Variable valve lift transition control methods and systems

Method and apparatus for diagnosing valve lifter malfunction in a lift on demand system