Gm Global Technolgoy Operations, Inc.

Robert X Monchamp

Kenneth Paul Dudek

Qi Ma

Stephen Yurkovich

Stephen K Fulcher

Jon C Miller

Jesse Michael Gwidt

Karen Margaret-Bell Gwidt

Michael N Kotsonas

A cold start control module for a direct injection engine includes a fuel flow determination module and a cylinder activation/deactivation module. The fuel flow determination module determines a requested fuel flow. The cylinder activation/deactivation module deactivates at least one of cylinders when the requested fuel flow exceeds a maximum fuel flow of the fuel pump during cold start.

Method of starting spark-ignition direct injection (SIDI) engines

A fuel control system for regulating fuel to cylinders of an internal combustion engine during an engine start and crank-to-run transition includes a first module that determines a plurality of step-ahead cylinder air masses (GPOs) for a cylinder based on a plurality of GPO prediction models. A second module regulates fueling to a cylinder of the engine based on the plurality of step-ahead GPOs until a combustion event of the cylinder.

Model-based fuel control for engine start and crank-to-run transition

A fuel control system for an internal combustion engine includes a first module that determines a corrected injected fuel mass based on an engine temperature and a measured burned fuel mass and a second module that determines a raw injected fuel mass based on the corrected injected fuel mass and the engine temperature. A third module regulates fueling to a cylinder of the engine based on the raw injected fuel mass.

Utilized function for fuel dynamics during engine start and crank-to-run transition

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Ann Arbor, MI, United States of America

Robert X Monchamp