公开(公告)号：US20240352901A1

公开(公告)日：2024-10-24

申请号：US18748392

申请日：2024-06-20

Applicant: WEICHAI POWER CO., LTD.

Inventor： Haifeng REN ,  Fei WANG ,  Bin PANG ,  Qingzhen MA ,  Huihui WANG ,  Lin CHEN ,  Wenchao MO ,  Xianfa XU

IPC: F02D41/00

CPC classification number: F02D41/0087 ,  F02D41/009 ,  F02D2200/0614 ,  F02D2200/101

Abstract: In a cylinder deactivation control method of an engine, a cylinder deactivation trigger moment of a to-be-controlled engine is determined; a second cycle and a cylinder deactivation mode corresponding to the next first cycle are determined according to the crankshaft rotation speed at the cylinder deactivation trigger moment, the target torque at the cylinder deactivation trigger moment, and a second cycle and a cylinder deactivation mode corresponding to the previous first cycle at the cylinder deactivation trigger moment; the fuel injection quantity of the ignition cylinder in the next first cycle is determined.

公开(公告)号：US20240352900A1

公开(公告)日：2024-10-24

申请号：US18748323

申请日：2024-06-20

Applicant: WEICHAI POWER CO., LTD.

Inventor： Haifeng REN ,  Fei WANG ,  Bin PANG ,  Qingzhen MA ,  Huihui WANG ,  Lin CHEN ,  Wenchao MO ,  Xianfa XU

IPC: F02D41/00

CPC classification number: F02D41/0087 ,  F02D41/009 ,  F02D2200/0614 ,  F02D2200/1002 ,  F02D2200/101

Abstract: In a cylinder deactivation control method of an engine, a cylinder deactivation trigger moment of a to-be-controlled engine is determined; a second cycle and a cylinder deactivation mode corresponding to the next first cycle are determined according to the crankshaft rotation speed at the cylinder deactivation trigger moment, the target torque at the cylinder deactivation trigger moment, and a second cycle and a cylinder deactivation mode corresponding to the current first cycle at the cylinder deactivation trigger moment; the cylinder pressure type of each cylinder in the current first cycle is determined in conjunction with the cylinder deactivation modes of three adjacent first cycles; the fuel injection quantity of each ignition cylinder in the current first cycle is determined based on the calibrated preset fuel injection quantity chart of the first cycle.