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.:
Date of Patent:
Mar. 31, 2026
Filed:
Jun. 21, 2023
Beijing CO Wheels Technology Co., Ltd., Beijing, CN;
Hongyang Zhang, Beijing, CN;
Yong Zhu, Beijing, CN;
Wenyu Cao, Beijing, CN;
Fei Hua, Beijing, CN;
Hao Wang, Beijing, CN;
Yue Meng, Beijing, CN;
Yunpeng Ning, Beijing, CN;
BEIJING CO WHEELS TECHNOLOGY CO., LTD., Beijing, CN;
Abstract
A method for controlling a range extender includes obtaining a sound pressure level of environmental noises and obtaining a real-time fitted sound quality limit for a vehicle in a traveling procedure; processing the sound pressure level and the real-time fitted sound quality limit to obtain a sound pressure level margin, determining a working condition corresponding to a sound pressure level lower than or equal to the sound pressure level margin, and taking the working condition as a target calibration working condition; obtaining a respective corrected sound pressure level by performing correction through a correcting sound pressure function based on the sound pressure level and a respective sound pressure level of the range extender in each working condition; and comparing the real-time fitted sound quality limit corresponding to the target calibration working condition with a corresponding corrected sound pressure level, and adjusting the target calibration working condition based on the comparison.