The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 06, 2025

Filed:

Jun. 20, 2024
Applicant:

Weichai Power Co., Ltd., Shandong, CN;

Inventors:

Haifeng Ren, Shandong, CN;

Fei Wang, Shandong, CN;

Bin Pang, Shandong, CN;

Qingzhen Ma, Shandong, CN;

Huihui Wang, Shandong, CN;

Lin Chen, Shandong, CN;

Wenchao Mo, Shandong, CN;

Xianfa Xu, Shandong, CN;

Assignee:

WEICHAI POWER CO., LTD., Shandong, CN;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 41/00 (2005.12); F02D 13/06 (2005.12); F02D 41/24 (2005.12);
U.S. Cl.
CPC ...
F02D 41/0087 (2012.12); F02D 41/009 (2012.12); F02D 2200/0614 (2012.12); F02D 2200/101 (2012.12);
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.


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