Patents by Inventor Xingquan Qin

Xingquan Qin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and device for testing battery equalization circuit
    Patent number: 10877099
    Abstract: Disclosed are a device and a method for testing a battery equalization circuit.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: December 29, 2020
    Assignee: BEIJING ELECTRIC VEHICLE CO., LTD.
    Inventors: Qianhui Zhang, Liguo Yan, Xingquan Qin, Zhongke Yang, Huigen Yu, Donglin Cao, Rui Liang, Dangqing Li, Zhiqiang Guo
  • METHOD AND DEVICE FOR TESTING BATTERY EQUALIZATION CIRCUIT
    Publication number: 20180313898
    Abstract: Disclosed are a device and a method for testing a battery equalization circuit.
    Type: Application
    Filed: October 26, 2016
    Publication date: November 1, 2018
    Inventors: Qianhui ZHANG, Liguo YAN, Xingquan QIN, Zhongke YANG, Huigen YU, Donglin CAO, Rui LIANG, Dangqing LI, Zhiqiang GUO
  • Electric vehicle driving system
    Patent number: 9039558
    Abstract: An electric vehicle driving system includes an energy-storage apparatus (1), a first motor (2), a speed regulating motor (3) and a single row planetary mechanism. Said first motor (2) and said speed regulating motor (3) are connected electrically to the energy-storage apparatus (1). The single row planetary mechanism includes a sun gear (4), a gear ring (5) and a planetary carries (6) with planetary gears (7). The planetary gears (7) in the planetary carrier (6) mesh the gear ring (5) and the sun gear (4) separately. The output axle of the first motor (2) is connected to the gear ring (5), and the output axle of the speed regulating motor (3) is connected to the sun gear (4) by a brake (8). The invention takes the speed regulating motor and the single row planetary mechanism instead of the gearbox in a transmission driving system, and achieves a simple and compact structure, easy assemble, light weight, and low manufacturing cost.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: May 26, 2015
    Assignees: BEIQI FOTON MOTOR CO., LTD., BEIJING ZHI KE INVESTMENT AND MANAGEMENT CO., LTD.
    Inventors: Feng Li, Xingquan Qin, Yu Li, Bao Li, Yanqiao Zhang, Qiang He
  • ELECTRIC VEHICLE DRIVING SYSTEM
    Publication number: 20130130856
    Abstract: An electric vehicle driving system includes an energy-storage apparatus (1), a first motor (2), a speed regulating motor (3) and a single row planetary mechanism. Said first motor (2) and said speed regulating motor (3) are connected electrically to the energy-storage apparatus (1). The single row planetary mechanism includes a sun gear (4), a gear ring (5) and a planetary carries (6) with planetary gears (7). The planetary gears (7) in the planetary carrier (6) mesh the gear ring (5) and the sun gear (4) separately. The output axle of the first motor (2) is connected to the gear ring (5), and the output axle of the speed regulating motor (3) is connected to the sun gear (4) by a brake (8). The invention takes the speed regulating motor and the single row planetary mechanism instead of the gearbox in a transmission driving system, and achieves a simple and compact structure, easy assemble, light weight, and low manufacturing cost.
    Type: Application
    Filed: March 11, 2011
    Publication date: May 23, 2013
    Applicants: Beijing ZHI KE Investment and Management Co., Ltd., Beiqi Foton Motor Co., Ltd.
    Inventors: Feng Li, Xingquan Qin, Yu Li, Bao Li, Yanqioa Zhang, Qiang He