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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.

Patent No.:

US 12539839 B1

PDFFull Text
Date of Patent:
Feb. 03, 2026

Filed:

Aug. 10, 2021

Dcdc output voltage control method and control system for hybrid electric vehicle

Applicants:

Ningbo Geely Royal Engine Components Co., Ltd, Zhejiang, CN;

Aurobay Technology Co., Ltd., Zhejiang, CN;

Zhejiang Geely Holding Group Co., Ltd, Zhejiang, CN;

Inventors:

Junchao Jing, Zhejiang, CN;

Yiqiang Liu, Zhejiang, CN;

Weishan Huang, Zhejiang, CN;

Jun Yang, Zhejiang, CN;

Xuemei Yu, Zhejiang, CN;

Ruiping Wang, Zhejiang, CN;

Ingo Scholten, Zhejiang, CN;

Assignees:

NINGBO GEELY ROYAL ENGINE COMPONENTS CO., LTD., Ningbo, CN;

AUROBAY TECHNOLOGY CO., LTD., Ningbo, CN;

ZHEJIANG GEELY HOLDING GROUP CO., LTD, Hangzhou, CN;

Attorney:

Westbridge IP LLC

Primary Examiner:

Edwin A Young

Int. Cl.
CPC ...
B60L 50/16 (2019.01); B60W 10/30 (2006.01);
U.S. Cl.
CPC ...
B60W 10/30 (2013.01); B60L 50/16 (2019.02); B60L 2210/12 (2013.01); B60L 2210/14 (2013.01);
Abstract

A DCDC output voltage control method and control system for a hybrid electric vehicle are provided. The method includes: when a DCDC converter is in a buck operation mode, determining whether the vehicle is in a high power output demand state or an abnormal engine flame-out state; if so, setting the output voltage of the DCDC converter to a normal target voltage; otherwise, determining whether a low-voltage load has a charging voltage boost demand, and when the low-voltage load has the charging voltage boost demand and the power of a high-voltage battery is greater than a power threshold, setting the output voltage of the DCDC converter according to the voltage level corresponding to the charging voltage boost demand, to meet the charging demand of the low-voltage load. The fuel economy of a hybrid power assembly system can be optimized.

Find Patent Forward Citations

Jing, Junchao. (2026). Dcdc output voltage control method and control system for hybrid electric vehicle (U.S. Patent No. 12539839). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12539839

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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