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:
Jan. 21, 2020
Filed:
Oct. 23, 2016
Zhongshan Broad-ocean Motor Co., Ltd., Zhongshan, CN;
Jizhong Wang, Zhongshan, CN;
Yiqiao Zhou, Zhongshan, CN;
Zheng Zhang, Zhongshan, CN;
Ge Hu, Zhongshan, CN;
Xiansheng Zhang, Zhongshan, CN;
Yong Zhao, Zhongshan, CN;
ZHONGSHAN BROAD-OCEAN MOTOR CO., LTD., Zhongshan, CN;
Abstract
A method for controlling air volume of an electric device to be constant, the device being adapted to exhaust or supply air, the method including: A) establishing M constant air volume control functions Qi=F(n) corresponding to M air volume points CFMin the microprocessor of the system controller; B) allowing the microprocessor to receive or preset a target air volume IN-; C) starting the motor, when the motor operates in a stable state, comparing M air volume points CFMi with the target air volume IN-, and ensuring that the target air volume IN-falls within two known air volume points CFMi and CFMi−1; D) using the two known air volume points CFMi and CFMi−1 to calculate a constant air volume control function Q0=F(n) corresponding to the target air volume IN-by interpolation method; and E) controlling a motor parameter Q0 and a rotational speed n.