Patents by Inventor Xiaolin Harry Wang

Xiaolin Harry Wang 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).

  • Patent number: 9919896
    Abstract: A detection method for elevator brake moment solves the problems that operation of the brake detection device in the prior art is required to be manually executed, the brake detection device is not convenient and facilitative to operate, the function is singular and the brake moment change trend and the brake wear trend cannot be reflected. In the method, by inputting stagewise torque current to the motor and determine whether the torque during rotation of a motor is within the design moment range of a brake, whether torque of the brake is enough can be determined and the brake wear trend can be analyzed according to torque recorded at each time. The method has advantages that the automatic detection is performed periodically, the functions are diversified, the detection accuracy is high, the brake moment change trend can be reflected and the brake wear trend can also be reflected.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: March 20, 2018
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: HengFeng Xie, Shan Li, Xiaolin Harry Wang
  • Publication number: 20160304314
    Abstract: A detection method for elevator brake moment solves the problems that operation of the brake detection device in the prior art is required to be manually executed, the brake detection device is not convenient and facilitative to operate, the function is singular and the brake moment change trend and the brake wear trend cannot be reflected. In the method, by inputting stagewise torque current to the motor and determine whether the torque during rotation of a motor is within the design moment range of a brake, whether torque of the brake is enough can be determined and the brake wear trend can be analyzed according to torque recorded at each time. The method has advantages that the automatic detection is performed periodically, the functions are diversified, the detection accuracy is high, the brake moment change trend can be reflected and the brake wear trend can also be reflected.
    Type: Application
    Filed: December 11, 2014
    Publication date: October 20, 2016
    Inventors: HengFeng Xie, Shan Li, Xiaolin Harry Wang