Cylinder air mass predictive system for stop-start and hybrid electric traction

摘要

An engine system includes a first module that determines that an engine cylinder is in one of M prediction types and generates a distance from the intake signal that indicates a number of prediction steps that the cylinder is away from an intake stroke. M is an integer greater than or equal to 3. A second module determines a cycle type of the cylinder. The cycle type indicates a number of combustion cycles that the cylinder has experienced since the engine was last restarted. A cylinder air charge module estimates an air mass within the cylinder based on the distance from the intake signal and the cycle type.