Patents by Inventor Xiaohong Duan

Xiaohong Duan 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: 20240140970
    Abstract: Described is a deuterated compound, and preparation method and use thereof The deuterated compound I has a structure as shown in Formula (I), wherein A is H or D, and at least one of eight As is D; M is H or an alkali metal, an alkaline earth metal, or an ammonium radical. The present invention provides use of the deuterated compound I as an internal standard for measuring the content of a metabolite II in a biological sample, wherein the metabolite II has a structure as shown in a Formula (II); wherein A is H; M is H or an alkali metal, an alkaline earth metal, or an ammonium radical. The present invention uses the deuterated compound I as an internal standard to quantitatively analysis the content of metabolite II at lower content in biological samples, which can not only meet the requirements for the lower limit of quantitation, but also meet the requirements for DMPK studies in clinical trials.
    Type: Application
    Filed: November 26, 2021
    Publication date: May 2, 2024
    Inventors: Meizhen Ruan, Xiaohong Cai, Jianxin Duan, Donald T Jung, Anrong Li, Teng Meng, Lin Sun, Bing Li
  • Patent number: 11973337
    Abstract: This invention relates to the technical field of harmonic elimination for ferromagnetic resonance for a voltage transformer (abbreviated as PT), in particular, to a harmonic elimination method for ferromagnetic resonance for an active resistance-matching voltage transformer based on PID-adjustment, including compiling a resistance matching algorithm; designing and building a harmonic elimination control system based on the PID control strategy; presetting an active resistance-matching strategy; designing an engineering scheme for placing resistors.
    Type: Grant
    Filed: August 17, 2023
    Date of Patent: April 30, 2024
    Assignee: Qujing Power Supply Bureau of Yunnan Power Grid Co., Ltd
    Inventors: Xiaohong Zhu, Lianjing Yang, Fei Mao, Rong Zhang, Yang Yang, Jiangyun Su, Wenfei Feng, Zhe Li, Pengjin Qiu, Jianbin Li, Zhikun Hong, Weirong Yang, Changjiu Zhou, Yingqiong Zhang, Rui Xu, Guibing Duan
  • Patent number: 11967683
    Abstract: A system and method for intelligent battery charging management to improve battery life and charging efficiency of high capacity batteries that may not be deeply discharged on a regular basis may learn driving habits automatically and/or with user input and select an ending state-of-charge (SOC) to limit battery charging to less than maximum capacity based on current and/or anticipated ambient temperature and battery health of life (HOL). An expected vehicle travel distance before the next charge may be learned or determined based on vehicle or user inputs. An ending SOC based on battery temperature, a delta SOC to meet propulsive energy for the expected travel distance, cycling effect (depth of discharge) on battery HOL for a given delta SOC, and/or battery working efficiency may be used to control charging of the vehicle battery.
    Type: Grant
    Filed: August 3, 2022
    Date of Patent: April 23, 2024
    Assignee: Ford Global Technologies, LLC
    Inventors: Xiaohong Duan, Yanan Zhao, Robert Taenaka
  • Publication number: 20240072531
    Abstract: This invention relates to the technical field of harmonic elimination for ferromagnetic resonance for a voltage transformer (abbreviated as PT), in particular, to a harmonic elimination method for ferromagnetic resonance for an active resistance-matching voltage transformer based on PID-adjustment, including compiling a resistance matching algorithm; designing and building a harmonic elimination control system based on the PID control strategy; presetting an active resistance-matching strategy; designing an engineering scheme for placing resistors.
    Type: Application
    Filed: August 17, 2023
    Publication date: February 29, 2024
    Inventors: Xiaohong ZHU, Lianjing YANG, Fei MAO, Rong ZHANG, Yang YANG, Jiangyun SU, Wenfei FENG, Zhe LI, Pengjin QIU, Jianbin LI, Zhikun HONG, Weirong YANG, Changjiu ZHOU, Yingqiong ZHANG, Rui XU, Guibing DUAN
  • Publication number: 20230094431
    Abstract: Methods and systems for controlling a temperature of an electric energy storage device of via a cooling device are disclosed. In one example, a temperature of an electric energy storage device may be permitted to increase when a vehicle is within a threshold distance of an expected parking location of the vehicle so that less electrical energy of the electric energy storage device may be consumed.
    Type: Application
    Filed: September 28, 2021
    Publication date: March 30, 2023
    Inventors: Yanan Zhao, Xiaohong Duan, Angel Porras, Julia Helen Buckland Seeds
  • Patent number: 11541775
    Abstract: A vehicle includes a battery, an electric machine, and a controller. The battery has a state of charge. The electric machine is configured to draw electrical power from the battery to propel the vehicle in response to an acceleration request and to deliver electrical power to the battery to recharge the battery. The controller is programmed to adjust an estimation of battery state of charge based on a feed forward control that includes a coulomb counting algorithm, a first feedback control that includes a first battery model, and a second feedback control that includes a second battery model. The controller is further programmed to control the electrical power flow between the battery and the electric machine based on the estimation of the state of charge of the battery.
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: January 3, 2023
    Assignee: Ford Global Technologies, LLC
    Inventors: Yixin Yao, Xiaohong Duan, Mark Steven Yamazaki, Richard Dyche Anderson
  • Publication number: 20220376313
    Abstract: A system and method for intelligent battery charging management to improve battery life and charging efficiency of high capacity batteries that may not be deeply discharged on a regular basis may learn driving habits automatically and/or with user input and select an ending state-of-charge (SOC) to limit battery charging to less than maximum capacity based on current and/or anticipated ambient temperature and battery health of life (HOL). An expected vehicle travel distance before the next charge may be learned or determined based on vehicle or user inputs. An ending SOC based on battery temperature, a delta SOC to meet propulsive energy for the expected travel distance, cycling effect (depth of discharge) on battery HOL for a given delta SOC, and/or battery working efficiency may be used to control charging of the vehicle battery.
    Type: Application
    Filed: August 3, 2022
    Publication date: November 24, 2022
    Applicant: Ford Global Technologies, LLC
    Inventors: Xiaohong DUAN, Yanan ZHAO, Robert TAENAKA
  • Publication number: 20210237614
    Abstract: A vehicle includes a battery, an electric machine, and a controller. The battery has a state of charge. The electric machine is configured to draw electrical power from the battery to propel the vehicle in response to an acceleration request and to deliver electrical power to the battery to recharge the battery. The controller is programmed to adjust an estimation of battery state of charge based on a feed forward control that includes a coulomb counting algorithm, a first feedback control that includes a first battery model, and a second feedback control that includes a second battery model. The controller is further programmed to control the electrical power flow between the battery and the electric machine based on the estimation of the state of charge of the battery.
    Type: Application
    Filed: February 4, 2020
    Publication date: August 5, 2021
    Inventors: Yixin Yao, Xiaohong Duan, Mark Steven Yamazaki, Richard Dyche Anderson
  • Patent number: 10793019
    Abstract: A high voltage battery pack comprises series-connected battery units, each separately powering a respective DC/DC converter. The converter outputs are coupled in parallel to supply a low-voltage DC bus. A central module has 1) an outer loop controller generating a target current to regulate the bus voltage and 2) an allocator distributing the target current via allocated current commands for respective converters. Local controllers each regulate an output current of a respective converter. The allocator identifies battery units having a predetermined deviation from a reference metric that characterizes the battery pack, allocates reverse currents to respective converters for the identified battery units, and increases the target current commanded for the DC/DC converters not allocated to have a reverse current by the allocated reverse currents. Battery units with extremely low or high states as compared with the other units are quickly balanced, thereby improving overall performance of the battery pack.
    Type: Grant
    Filed: August 16, 2018
    Date of Patent: October 6, 2020
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Xiaohong Duan, Richard Dyche Anderson
  • Publication number: 20200055405
    Abstract: A high voltage battery pack comprises series-connected battery units, each separately powering a respective DC/DC converter. The converter outputs are coupled in parallel to supply a low-voltage DC bus. A central module has 1) an outer loop controller generating a target current to regulate the bus voltage and 2) an allocator distributing the target current via allocated current commands for respective converters. Local controllers each regulate an output current of a respective converter. The allocator identifies battery units having a predetermined deviation from a reference metric that characterizes the battery pack, allocates reverse currents to respective converters for the identified battery units, and increases the target current commanded for the DC/DC converters not allocated to have a reverse current by the allocated reverse currents. Battery units with extremely low or high states as compared with the other units are quickly balanced, thereby improving overall performance of the battery pack.
    Type: Application
    Filed: August 16, 2018
    Publication date: February 20, 2020
    Inventors: Xiaohong Duan, Richard Dyche Anderson
  • Patent number: 7399248
    Abstract: A differential mechanism for transmitting power from an input to an output includes a case containing a side gear, a locking member rotatably secured to the case and axially displaceable relative to the case. The locking member alternately engages the side gear to limit rotation of the side gear relative to the case, and disengages the side gear to permit rotation of the side gear relative to the case. An electromagnetic coil assembly is supported on the case for movement toward and away from the locking member. A first actuator including an electromagnetic coil is supported on the case for moving the locking member toward engagement with the side gear in response to energizing the coil. A second actuator urges the locking member away from engagement with the side gear.
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: July 15, 2008
    Assignee: Ford Motor Company
    Inventors: Aaron Kleinhans, Xiaohong Duan, Zhesheng Li, Clive McKenzie, Brian Andonian
  • Publication number: 20070270275
    Abstract: A differential mechanism for transmitting power from an input to an output includes a case containing a side gear, a locking member rotatably secured to the case and axially displaceable relative to the case. The locking member alternately engages the side gear to limit rotation of the side gear relative to the case, and disengages the side gear to permit rotation of the side gear relative to the case. An electromagnetic coil assembly is supported on the case for movement toward and away from the locking member. A first actuator including an electromagnetic coil is supported on the case for moving the locking member toward engagement with the side gear in response to energizing the coil. A second actuator urges the locking member away from engagement with the side gear.
    Type: Application
    Filed: May 22, 2006
    Publication date: November 22, 2007
    Inventors: Aaron Kleinhans, Xiaohong Duan, Zhesheng Li, Clive McKenzie, Brian Andonian