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:
Nov. 02, 2021

Filed:

Mar. 23, 2018
Applicant:

Tianjin University, Tianjin, CN;

Inventors:

Mingfa Yao, Tianjin, CN;

Yang Wang, Tianjin, CN;

Hu Wang, Tianjin, CN;

Haifeng Liu, Tianjin, CN;

Zunqing Zheng, Tianjin, CN;

Shan Mi, Tianjin, CN;

Assignee:

TIANJIN UNIVERSITY, Tianjin, CN;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F02D 15/02 (2006.01); F02B 75/02 (2006.01); F02B 75/04 (2006.01); F02D 13/02 (2006.01); F02D 41/38 (2006.01); F02M 31/20 (2006.01); F02M 35/10 (2006.01);
U.S. Cl.
CPC ...
F02D 15/02 (2013.01); F02B 75/02 (2013.01); F02B 75/048 (2013.01); F02D 13/0203 (2013.01); F02D 13/028 (2013.01); F02D 41/38 (2013.01); F02M 31/20 (2013.01); F02M 35/10157 (2013.01); F02M 35/10222 (2013.01); F02M 35/10255 (2013.01); F02B 2075/025 (2013.01); F02B 2075/027 (2013.01); F02D 2041/389 (2013.01);
Abstract

The present invention discloses a control method of variable stroke engine for reforming high-octane fuel under the FCE mode, the ECU connected to the engine controls the amount of fuel injected from the flexible cylinder injector to the flexible cylinder and controls the switch state of inlet valve and exhaust valve of the flexible cylinder, so that the flexible cylinder can be switched between two-stroke mode and four-stroke mode according to the actual engine operating conditions; when the engine is at a small load and needs to promote combustion stability, the flexible cylinder injector injects a rich fuel with equivalence ratio greater than 1 into the flexible cylinder, the flexible cylinder is at two-stroke mode; when the engine is at a large load and needs sufficient power output, the flexible cylinder injector injects a conventional fuel into the flexible cylinder, said flexible cylinder is at four-stroke mode.


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