Patent ID: 8589054
Filing Date: 2013-11-19
Classification: F02D,F02M,Y02T

Abstract:
1. A system for controlling a power train with internal combustion for a motor vehicle provided with an electronic control unit, said system comprising: an internal combustion engine; an exhaust gases partial recirculation loop provided with a recirculation valve controlled by a first actuator, and connected to a fresh air supply pipe of the engine provided with an air intake flap controlled by a second actuator, and determining unit for determining fresh air flow rate and partially recirculated exhaust gases flow rate, the electronic control unit comprising: a first unit that controls said actuators when the engine is provided with a rich mixture of fuel mass to oxidant mass, according to a rich mixture control structure, comprising two regulators for controlling respectively a position of the air intake flap and a position of the recirculation valve to position set point values; a second unit that controls said actuators when the engine is provided with a lean mixture of fuel mass to oxidant mass, according to a lean mixture control structure, comprising a regulator for controlling the position of the air intake flap or the position of the recirculation valve to a position set point value; and a selecting unit that activates the first or second unit, wherein the rich mixture control structure is configured to control the first and second actuators to position set point values equal to initial position set point values of said actuators of the lean mixture control structure during a transition from the rich mixture control structure to the lean mixture control structure and before the lean mixture control structure controls the first actuator or the second actuator.