STARTUP CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINES AND STARTUP CONTROL METHOD Russian patent published in 2018 - IPC F02D29/02 F02D43/00 F02N11/04 F02N11/08 F02N11/14 B60W10/06 B60W10/08 B60W20/00 

FIELD: engines and pumps.

SUBSTANCE: invention relates to startup control of the combustion engines. Startup control device for the combustion engine comprises a hard cranking device and a soft cranking device that are respectively capable of and incapable of cranking the internal combustion engine to a target idle rotation speed. Starting control device includes: a starting mode determination unit determining whether to carry out starting in a non-combustion pressure mode whereby starting is carried out with the hard cranking device, or in a combustion pressure combination mode whereby starting is carried out through cranking with the soft cranking device while using a combustion pressure generated by supplying fuel to the internal combustion engine in combination; and an intake air amount control unit making an amount of intake air during cranking differ between a case where starting is carried out in the non-combustion pressure mode and a case where starting is carried out in the combustion pressure combination mode. Method of startup control is considered.

EFFECT: invention provides a softening increase in the number of revolutions and a decrease in the engine speed immediately after startup.

6 cl, 5 dwg