Inventor

DIBBLE DONOVAN L

US36 patents

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

DIBBLE DONOVAN L

GM GLOBAL TECH OPERATIONS INC

Fuel injector diagnostic system and method for direct injection engine

Adaptive control of fuel delivery in direct injection engines

Multi-injection combustion cycle systems for SIDI engines

Diagnostic system for valve actuation mechanism

Fuel injector flow correction system for direct injection engines

Two-step oil control valve failure diagnostic

Spark-ignition direct-injection cold start strategy using high pressure start

Torque based fuel cut-off

Fuel quality detection using torque and engine speed

Two-step oil control valve diagnostic systems

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

Direct injected fuel pump diagnostic systems and methods

Diagnostic system and method for hydraulically-actuated cam phasers

Control of fuel pump by quantifying performance

GEN MOTORS CORP

Coordinated engine torque control

Torque estimator for engine RPM and torque control

Methods and apparatus for providing security for electronically-controlled cylinder activation and deactivation

CAM phaser and DOD coordination for engine torque control

Learned airflow variation

Displacement on demand with throttle preload security methodology

Model following torque control

Apparatus and method for electronic throttle control power management enhancements

CINPINSKI KENNETH J

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

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

Variable valve lift transition control methods and systems

Camshaft phasor synchronization system for an engine

Method and system for controlling a cam phaser

GM GLOBAL TECH OPERATIONS LLC

System and method for measuring valve lift and for detecting a fault in a valve actuator based on the valve lift

Engine valve position sensing systems and methods

Method to optimize engine operation using active fuel management

DOUGLAS SCOT A

Torque converter control for variable valve lift powertrain systems

Two-step valve lifter control systems and methods

WOZNIAK LEONARD G

Torque control arbitration in powertrain systems

SUN MIN

System and method for controlling ammonia levels in a selective catalytic reduction catalyst using a nitrogen oxide sensor

SANTOSO HALIM G

Systems and methods for stabilizing torque during mode transition in direct injection engines

ROBERTS ALEXANDER J

Multi-step valve lift failure mode detection