Patents by Inventor Xuefeng Ji

Xuefeng Ji 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).

  • Publication number: 20230420709
    Abstract: The present disclosure provides a fuel cell performance optimization methodology combined with simulation method and experimental method, comprising: with the mutual coupling of simulation and experiment, a fuel cell simulation model is established, a bench test is performed, the model is calibrated, the operating conditions are refined and simulation and analysis are performed, and the optimal operating condition is obtained to perform the bench test, the optimal actual output voltage of the fuel cell is obtained, and the output voltage optimization result of the fuel cell are verified. The present disclosure not only reduces the number of experiments and experiment cycles in the process of fuel cell operation condition optimization, but also improves the reliability and accuracy of simulation results, and better plays the role of simulation in optimization.
    Type: Application
    Filed: October 20, 2022
    Publication date: December 28, 2023
    Inventors: Zirong YANG, Dong HAO, Yanyi ZHANG, Hao LAN, Jia WANG, Daokuan JIAO, Xin ZHAO, Minghui MA, Xuefeng JI
  • Publication number: 20230384146
    Abstract: An automatic weighting calibration method for an excavator includes: firstly, obtaining a reference data set of the excavator under no-load working state; the reference data set includes a plurality of reference data groups, and each reference data group includes geometry data of the excavator, pressure data of an oil cylinder, dynamic data and no-load weighing data; and then, calibrating a coefficient matrix of the weighing model to realize the automatic weighing calibration for the excavator based on the reference data set. The weighing model is configured to automatically weigh the excavator.
    Type: Application
    Filed: August 15, 2023
    Publication date: November 30, 2023
    Applicant: SHANGHAI SANY HEAVY MACHINERY CO., LTD
    Inventors: Xuefeng JI, Chuangshuo ZENG
  • Patent number: 10707028
    Abstract: A transmission subsystem has an automatic transfer switch (100) which includes at least a pair of movable contact members (28, 30). The pair of movable contact members includes a first movable contact member (28) at a first location and a second movable contact member (30) at a second location. The automatic transfer switch further includes a fixed member (29), a controller (68) configured to select one of the first and second movable contact members, and a permanent magnetic actuator (65). The permanent magnetic actuator includes an actuator body, a first driving rod (60), and a second driving rod (62). The permanent magnet actuator is configured to move the first driving rod in a first direction independently of movement of the second driving rod. The first driving rod is configured to move the first movable contact member, and the second driving rod is configured to move the second movable contact member.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: July 7, 2020
    Assignee: Cummins Power Generation IP Inc.
    Inventors: Xuefeng Ji, Tongxian Hu, Dongyan Chu
  • Patent number: 10692677
    Abstract: An automatic transfer switch system includes a contact subsystem having a plurality of movable contact members, including at least one first movable contact member and at least one second movable contact member at first and second locations, respectively, and at least one fixed contact member. The switch system further includes a permanent magnet operating mechanism that controls opening and closing of the movable contact members relative to the fixed contact member, generates a holding force to maintain a state of the at least one first movable contact member at the first location and a state of the at least one second movable contact member at the second location, and connects to the subsystem via a linkage, and a solenoid permitting movement of the at least one first movable contact member and the at least one second movable contact member at the first and second locations, respectively.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: June 23, 2020
    Assignee: Cummins Power Generation IP Inc.
    Inventors: Xuefeng Ji, Tongxian Hu, Dongyan Chu
  • Patent number: 10326303
    Abstract: A transfer switch transfers electric power provided to an electrical load from a first power source to a second power source. The transfer switch includes a coil arrangement that controls movement of a member to open or close a contactor of the first or second power source. The coil arrangement may be used with two voltage levels.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: June 18, 2019
    Assignee: Cummins Power Generation IP, Inc.
    Inventors: Yong Wang, Fangwei Zheng, Xuefeng Ji, Dejun Cheng, Yuxiang Wei, Dongyan Chu
  • Publication number: 20180190460
    Abstract: An automatic transfer switch system includes a contact subsystem having a plurality of movable contact members, including at least one first movable contact member and at least one second movable contact member at first and second locations, respectively, and at least one fixed contact member. The switch system further includes a permanent magnet operating mechanism that controls opening and closing of the movable contact members relative to the fixed contact member, generates a holding force to maintain a state of the at least one first movable contact member at the first location and a state of the at least one second movable contact member at the second location, and connects to the subsystem via a linkage, and a solenoid permitting movement of the at least one first movable contact member and the at least one second movable contact member at the first and second locations, respectively.
    Type: Application
    Filed: June 26, 2015
    Publication date: July 5, 2018
    Inventors: Xuefeng JI, Tongxian HU, Dongyan CHU
  • Publication number: 20180190441
    Abstract: A transmission subsystem has an automatic transfer switch (100) which includes at least a pair of movable contact members (28, 30). The pair of movable contact members includes a first movable contact member (28) at a first location and a second movable contact member (30) at a second location. The automatic transfer switch further includes a fixed member (29), a controller (68) configured to select one of the first and second movable contact members, and a permanent magnetic actuator (65). The permanent magnetic actuator includes an actuator body, a first driving rod (60), and a second driving rod (62). The permanent magnet actuator is configured to move the first driving rod in a first direction independently of movement of the second driving rod. The first driving rod is configured to move the first movable contact member, and the second driving rod is configured to move the second movable contact member.
    Type: Application
    Filed: June 26, 2015
    Publication date: July 5, 2018
    Inventors: Xuefeng JI, Tongxian HU, Dongyan CHU
  • Publication number: 20180183263
    Abstract: A transfer switch transfers electric power provided to an electrical load from a first power source to a second power source. The transfer switch includes a coil arrangement that controls movement of a member to open or close a contactor of the first or second power source. The coil arrangement may be used with two voltage levels.
    Type: Application
    Filed: December 20, 2017
    Publication date: June 28, 2018
    Inventors: Yong Wang, Fangwei Zheng, Xuefeng Ji, Dejun Cheng, Yuxiang Wei, Dongyan Chu
  • Publication number: 20150115745
    Abstract: A transfer switch (104) transfers electric power provided to an electrical load (106) from a first power source to a second power source. The transfer switch (104) includes a coil arrangement that controls movement of a member to open or close a contactor of the first or second power source. The coil arrangement may be used with two voltage levels.
    Type: Application
    Filed: January 18, 2012
    Publication date: April 30, 2015
    Inventors: Yong Wang, Fangwei Zheng, Xuefeng Ji, Dejun Cheng, Yuxiang Wei, Dongyan Chu