Method of resuming multi-port injection using an intake stroke and a vehicle using same
AssigneeHyundai Motor Company
InventorsMin-Kyu Han, Jung-Suk Han
Life of this patent
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Abstract
A method of resuming multi-port injection using an intake stroke of an engine includes performing a first refueling with immediate start of ignition injection at the time when an injection abortion angle does not pass through an intake stroke, when injection is determined to be resumed after coasting by a controller. The method can minimize an engine RPM drop caused by the early generation of torque. The method improves fuel efficiency while being advantageous to calibration of the engine by setting the engine RPM to be low at the time of fuel cut-in.
Claims7
A method of resuming MPI using an intake stroke, the method comprising:
- performing a first refueling with immediate SOI injection, when an injection abortion angle does not pass through an intake stroke, when injection is determined to be resumed after coasting by a controller,
- wherein the immediate SOI injection includes:
- determining whether the injection is resumed at the time of a fuel cut-in after a fuel cut-off during the coasting;
- applying the injection abortion angle to a cylinder when the injection is determined to be resumed;
- setting a cylinder through which the injection abortion angle does not pass as a determined cylinder;
- determining an injection EOI command angle of the determined cylinder, and
- performing the first refueling in the determined cylinder through which the injection EOI command angle passes.
Dependencies are inferred from the claim text.