Gm Global Technolgoy Operations, Inc.

Cosma Negro

Isadora Ricci

Stefano Pellegrino

Davide Di Nunno

Riccardo Baria

Giorgio Nati

Andres Cespedes Garcia

A method and system for operating an internal combustion engine equipped with a turbocharger and an exhaust gas recirculation pipe fluidly connecting an exhaust gas line to an air intake duct upstream of a compressor of the turbocharger is disclosed. A value of a parameter indicative of a temperature of an exhaust gas is determined, and an internal recirculation strategy of the exhaust gas is actuated if the determined value is lower than a predetermined threshold value thereof. The internal recirculation strategy includes interrupting a flowing of exhaust gas through the exhaust gas recirculation pipe, and opening an exhaust valve during an intake stroke of a piston of the internal combustion engine.

Method of operating an internal combustion engine having a turbocharger

A method of operating a fuel injector of an internal combustion engine having a reciprocating piston includes performing a multi after-injection pattern having at least one pair of consecutive injection pulses both starting after a top dead center of the piston and separated by a dwell time shorter than 200 as.

Method of operating a fuel injector of an internal combustion engine of a motor vehicle

Growing community of inventors

Candelu, Italy

Cosma Negro