Gm Global Technolgoy Operations, Inc.

Other

Robert S Levy

Michael J Lucido

David P Sczomak

Jonathan T Shibata

Sharon Xiaobin Li

A method and a controller for controlling spark timing in a cold start condition for an engine in a vehicle propulsion system. The method includes determining whether the engine is in a cold start condition, and advancing spark timing before top dead center in a combustion cycle such that combustion heat is primarily received by a surface in a combustion chamber in the engine if the engine is in a cold start condition.

Method for controlling spark timing in a cold start condition for an engine in a vehicle propulsion system and controller for executing the method

A system according to the principles of the present disclosure includes a fuel injector cleaning module and a fuel control module. The fuel injector cleaning module generates an instruction to clean a fuel injector of an engine based on engine operating conditions. The fuel control module, in response to the injector clean instruction, controls the fuel injector to perform N fuel injections for each combustion event in a cylinder of the engine and, during each of the N fuel injections, deactivates the fuel injector before the fuel injector fully opens. N is an integer greater than one.

System and method for controlling an engine to remove soot deposits from the fuel injectors of the engine

A system according to the present disclosure includes a fuel control module and at least one of a desired air per cylinder (APC) module and a predicted manifold absolute pressure (MAP) module. The desired APC module determines a desired amount of airflow to each cylinder of an engine. The predicted MAP module predicts a pressure within an intake manifold of the engine at a future time. The fuel control module selectively adjusts a fuel injection parameter of the engine based on at least one of: a change in the desired air per cylinder from a first time to a second time; and a change in the predicted manifold pressure from the first time to the second time.

System and method for adjusting fuel injection parameters during transient events to reduce particulate emissions

A system according to the principles of the present disclosure includes a communication module and a control module. The communication module transmits a first wireless signal indicating a request from a user of a vehicle to adjust operation of a powertrain in the vehicle, a display in the vehicle, and/or a noise actuator in the vehicle. The communication module receives a second wireless signal enabling operation of the powertrain, the display, and/or the noise actuator to be adjusted according to the request. The control module controls the powertrain, the display, and/or the noise actuator based on a first set of values for a control parameter before the second wireless signal is received. The control module controls the powertrain, the display, and/or the noise actuator based on a second set of values for the control parameter after the second wireless signal is received.

System and method for enabling a user to adjust the operation of a powertrain in a vehicle, to adjust the appearance of a user interface device in the vehicle, and/or to adjust vehicle noise

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Leonard, MI, United States of America

Robert S Levy