Patents by Inventor Xiaoyun Zang

Xiaoyun Zang 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: 10644574
    Abstract: An optical sensor for estimating positions of rotors in a motor comprises an optical source (21) and a plurality of photo detectors (22), the motor further has stators and is used for e-machines, the optical source (21) is mounted on the surface of the rotor where the air gap is big enough to not block magnetic flux between the rotors and the stators, the photo detectors (22) are arranged evenly around the stator tooth slots and configured to detect light emitted by the optical source (21) and output parameters which are used to estimate the positions of rotors. The proposed low cost optical sensor measures the angular position of rotating e-machine when sensorless control algorithm is applied but limited by response time at high speed region. The optical sensor only adds small cost and provides rotor position information with enough accuracy for FOC control at high rotational speed. A method for estimating positions of rotors in a motor and a motor comprising the optical sensor are also provided.
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: May 5, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Alexander Boronka, Xiaoyun Zang
  • Patent number: 10601354
    Abstract: The present invention relates to a method and apparatus for on-line estimation of an initial position of a surface permanent magnet electric machine in a stationary state or at a first speed. The method (100) for on-line estimation of an initial position of a surface permanent magnet electric machine in a stationary state or at a first speed comprises: injecting a high-frequency pulsating voltage signal; acquiring a d-axis high-frequency current signal responding to the high-frequency pulsating voltage signal; and estimating an initial position of the surface permanent magnet electric machine on the basis of a second harmonic of the d-axis high-frequency current signal.
    Type: Grant
    Filed: December 23, 2015
    Date of Patent: March 24, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Yongle Mao, Wei Zhang, Xiaoyun Zang
  • Patent number: 10464633
    Abstract: A driving system for an electric vehicle comprises a motor (3) comprising a first output shaft (11) and a gearbox (17) comprising a second output shaft (27) attachable to a wheel (33) of the electric vehicle. The first output shaft (11) is capable of driving the second output shaft (27) to rotate by engagement of gears of the gearbox (17). The first output shaft (11) is hollow, and the second output shaft (27) extends through the first output shaft (11) so that the second output shaft (27) is disposed coaxially with the first output shaft (11). An electric vehicle comprising the driving system is disclosed. The driving system is possible to improve the balancing, the passing ability and the visual appearance of the electric vehicle.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: November 5, 2019
    Assignee: Robert Bosch GmbH
    Inventors: Tao Zhu, Weiya Li, Qilin Huang, Xiaoyun Zang
  • Publication number: 20190286079
    Abstract: A cooling control system and method for a motor vehicle comprising: a server unit and N client units, wherein N is greater than or equal to 1, the server unit being in data connection with the N client units via a wireless network, the N client units configured to be arranged on N motor vehicles respectively, each client unit configured to perform real-time collection and storage of calculation input data on the corresponding motor vehicle for evaluating a temperature of a unit requiring cooling on the motor vehicle, perform real-time collection and storage of temperature data of the unit requiring cooling, predict, using the collected calculation input data, temperature data at a future time of the unit requiring cooling based on a predictive mathematical model determined by the server unit (200), and enable the selective cooling in advance of the unit requiring cooling based on the predicted temperature data.
    Type: Application
    Filed: March 15, 2019
    Publication date: September 19, 2019
    Inventors: Xiaoyun Zang, Alexander Boronka
  • Publication number: 20190229589
    Abstract: An optical sensor for estimating positions of rotors in a motor comprises an optical source (21) and a plurality of photo detectors (22), the motor further has stators and is used for e-machines, the optical source (21) is mounted on the surface of the rotor where the air gap is big enough to not block magnetic flux between the rotors and the stators, the photo detectors (22) are arranged evenly around the stator tooth slots and configured to detect light emitted by the optical source (21) and output parameters which are used to estimate the positions of rotors. The proposed low cost optical sensor measures the angular position of rotating e-machine when sensorless control algorithm is applied but limited by response time at high speed region. The optical sensor only adds small cost and provides rotor position information with enough accuracy for FOC control at high rotational speed. A method for estimating positions of rotors in a motor and a motor comprising the optical sensor are also provided.
    Type: Application
    Filed: August 16, 2016
    Publication date: July 25, 2019
    Inventors: Alexander Boronka, Xiaoyun Zang
  • Publication number: 20190002056
    Abstract: A driving system for an electric vehicle comprises a motor (3) comprising a first output shaft (11) and a gearbox (17) comprising a second output shaft (27) attachable to a wheel (33) of the electric vehicle. The first output shaft (11) is capable of driving the second output shaft (27) to rotate by engagement of gears of the gearbox (17). The first output shaft (11) is hollow, and the second output shaft (27) extends through the first output shaft (11) so that the second output shaft (27) is disposed coaxially with the first output shaft (11). An electric vehicle comprising the driving system is disclosed. The driving system is possible to improve the balancing, the passing ability and the visual appearance of the electric vehicle.
    Type: Application
    Filed: June 19, 2015
    Publication date: January 3, 2019
    Inventors: Tao Zhu, Weiya Li, Qilin Huang, Xiaoyun Zang
  • Publication number: 20180375453
    Abstract: The present invention relates to a method and apparatus for on-line estimation of an initial position of a surface permanent magnet electric machine in a stationary state or at a first speed. The method (100) for on-line estimation of an initial position of a surface permanent magnet electric machine in a stationary state or at a first speed comprises: injecting a high-frequency pulsating voltage signal; acquiring a d-axis high-frequency current signal responding to the high-frequency pulsating voltage signal; and estimating an initial position of the surface permanent magnet electric machine on the basis of a second harmonic of the d-axis high-frequency current signal.
    Type: Application
    Filed: December 23, 2015
    Publication date: December 27, 2018
    Inventors: Yongle MAO, Wei ZHANG, Xiaoyun ZANG
  • Patent number: 9127642
    Abstract: A method for adjusting the power output of a wind turbine (10) based on component operating temperatures is disclosed. The method may generally include receiving a signal associated with an operating temperature of the wind turbine (402), determining a desired power output range of the wind turbine at the operating temperature (404), comparing a power output of the wind turbine to the desired power output range (406) and adjusting the power output when the power output is outside the desired power output range (408).
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: September 8, 2015
    Assignee: General Electric Company
    Inventors: Guangyi Zhu, Dong Wang, Xiaoyun Zang, Wei Zhu
  • Publication number: 20140015252
    Abstract: A method for adjusting the power output of a wind turbine (10) based on component operating temperatures is disclosed. The method may generally include receiving a signal associated with an operating temperature of the wind turbine (402), determining a desired power output range of the wind turbine at the operating temperature (404), comparing a power output of the wind turbine to the desired power output range (406) and adjusting the power output when the power output is outside the desired power output range (408).
    Type: Application
    Filed: March 29, 2011
    Publication date: January 16, 2014
    Applicant: General Electric Company
    Inventors: Guangyi Zhu, Dong Wang, Xiaoyun Zang, Wei Zhu
  • Patent number: 7780412
    Abstract: Methods and apparatus for continuing wind turbine operation when normal wind turbine motor control is unavailable due to overheating of one or more wind turbine control motors. Technical effects of the present invention include providing an effective control strategy continuing operation during over-heating of a wind turbine control motor, such as a pitch control motor and a yaw control motor.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: August 24, 2010
    Assignee: General Electric Company
    Inventors: Xiaoyun Zang, Dong Wang, Meng Gao
  • Publication number: 20100143116
    Abstract: Methods and apparatus for continuing wind turbine operation when normal wind turbine motor control is unavailable due to overheating of one or more wind turbine control motors. Technical effects of the present invention include providing an effective control strategy continuing operation during over-heating of a wind turbine control motor, such as a pitch control motor and a yaw control motor.
    Type: Application
    Filed: May 28, 2009
    Publication date: June 10, 2010
    Inventors: Xiaoyun Zang, Dong Wang, Meng Gao