Patents by Inventor Changjian HU

Changjian HU 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: 20220216718
    Abstract: A controller, during charging of a traction battery by a remote charger, and responsive to a difference between a requested charge current and a current supplied by the remote charger exceeding a first threshold value for a predefined period of time, increases a requested charge voltage to a limit value. The controller further, responsive to a voltage across a capacitor and a voltage across the traction battery being same, and a voltage of the remote charger and the limit value being same, commands the remote charger to discontinue the charging.
    Type: Application
    Filed: January 7, 2021
    Publication date: July 7, 2022
    Inventors: Rui Wang, Yuan Zhang, Patterson Kaduvinal Abraham, Changjian Hu, Jeffrey R. Grimes
  • Patent number: 10933768
    Abstract: A vehicle charging system includes a charger configured to adjust an output voltage to achieve a voltage request and output a measured output voltage. The vehicle charging system further includes a controller programmed to measure a terminal voltage of a traction battery being charged and receive the measured output voltage from the charger. The controller is further programmed to output the voltage request as a sum of a full charge voltage and an estimated voltage measurement error between the measured output voltage and the terminal voltage.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: March 2, 2021
    Assignee: Ford Global Technologies, LLC.
    Inventors: Yuan Zhang, Jeffery R. Grimes, Navid Rahbari Asr, Lila Ghannam, Changjian Hu, Kevin Vander Laan, Matthew Roger Dedona
  • Patent number: 10696181
    Abstract: This disclosure describes vehicle systems and methods for controlling charging of an auxiliary (i.e., low voltage) battery of an electrified vehicle. Exemplary charging methods may dynamically adjust a low voltage setpoint of a power converter during the low voltage support. The proposed systems and methods therefore achieve constrained low voltage support by controlling the power drawn by the power converter at an appropriate level during the low voltage support.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: June 30, 2020
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Changjian Hu, Josephine S. Lee, James Brian Keyse
  • Publication number: 20200039357
    Abstract: This disclosure describes vehicle systems and methods for controlling charging of an auxiliary (i.e., low voltage) battery of an electrified vehicle. Exemplary charging methods may dynamically adjust a low voltage setpoint of a power converter during the low voltage support. The proposed systems and methods therefore achieve constrained low voltage support by controlling the power drawn by the power converter at an appropriate level during the low voltage support.
    Type: Application
    Filed: August 6, 2018
    Publication date: February 6, 2020
    Inventors: Changjian HU, Josephine S. LEE, James Brian KEYSE
  • Publication number: 20190366852
    Abstract: A vehicle charging system includes a charger configured to adjust an output voltage to achieve a voltage request and output a measured output voltage. The vehicle charging system further includes a controller programmed to measure a terminal voltage of a traction battery being charged and receive the measured output voltage from the charger. The controller is further programmed to output the voltage request as a sum of a full charge voltage and an estimated voltage measurement error between the measured output voltage and the terminal voltage.
    Type: Application
    Filed: June 4, 2018
    Publication date: December 5, 2019
    Inventors: Yuan ZHANG, Jeffery R. GRIMES, Navid RAHBARI ASR, Lila GHANNAM, Changjian HU, Kevin VANDER LAAN, Matthew Roger DEDONA
  • Patent number: 10486542
    Abstract: A hybrid electric vehicle (HEV) and method of operation includes a thermal management system (TMS) that maintains optimal battery temperature operating ranges. The TMS includes a controller, heater, pump, and valves that control a flow rate of a convective fluid about the battery and other components. The TMS responds to battery temperature and differential signals, converting them into pump speed and heater signals utilizing a fuzzy logic multidimensional membership function (MF) that improves performance while reducing energy consumption by generating real-time, smoothed pulse width modulated (PWM) pump speed and heater signals. The MF capability requires less processing power than prior systems, which in turn enables improved response time to battery thermal and temperature rate changes during HEV operation.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: November 26, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Xu Wang, Chuan He, Changjian Hu, Kenneth Jon Cunningham
  • Publication number: 20190016230
    Abstract: A hybrid electric vehicle (HEV) and method of operation includes a thermal management system (TMS) that maintains optimal battery temperature operating ranges. The TMS includes a controller, heater, pump, and valves that control a flow rate of a convective fluid about the battery and other components. The TMS responds to battery temperature and differential signals, converting them into pump speed and heater signals utilizing a fuzzy logic multidimensional membership function (MF) that improves performance while reducing energy consumption by generating real-time, smoothed pulse width modulated (PWM) pump speed and heater signals. The MF capability requires less processing power than prior systems, which in turn enables improved response time to battery thermal and temperature rate changes during HEV operation.
    Type: Application
    Filed: July 12, 2017
    Publication date: January 17, 2019
    Inventors: Xu WANG, Chuan HE, Changjian HU, Kenneth Jon CUNNINGHAM
  • Patent number: 9979762
    Abstract: A data transmission method and a system thereof are provided according to the disclosure. A first type is determined for the data to be transmitted by the first data terminal in the local area network, data of the first type stored in all data terminals in the local area network is detected and is transmitted to the server in accordance with the first predetermined rule, where the first terminal is any one of the data terminals in the local area network.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: May 22, 2018
    Assignee: Lenovo (Beijing) Co., Ltd.
    Inventors: Fan Zheng, Pengcheng Jia, Changjian Hu
  • Publication number: 20160277464
    Abstract: A data transmission method and a system thereof are provided according to the disclosure. A first type is determined for the data to be transmitted by the first data terminal in the local area network, data of the first type stored in all data terminals in the local area network is detected and is transmitted to the server in accordance with the first predetermined rule, where the first terminal is any one of the data terminals in the local area network.
    Type: Application
    Filed: August 25, 2015
    Publication date: September 22, 2016
    Applicant: LENOVO (BEIJING) CO., LTD.
    Inventors: Fan ZHENG, Pengcheng JIA, Changjian HU
  • Patent number: 9159109
    Abstract: Embodiments of the invention disclose a method and apparatus for detecting the statuses of energy source consumption devices, relate to the field of energy source auditing and are intended to improve the efficiency and accuracy of detecting the statuses of the energy source consumption devices.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: October 13, 2015
    Assignee: NEC (CHINA) CO., LTD.
    Inventors: Lei Song, Changjian Hu, Lu Yu, Kai Zhao
  • Publication number: 20140028442
    Abstract: A method and apparatus for occupation detection includes: estimating locations of detected objects in a segmented detection region at a current time to acquire an estimation result, and transforming each of the acquired estimation results to a corresponding binary matrix, acquiring at least one candidate matrix at the current time according to the acquired binary matrices, and performing difference estimation on each of the candidate matrices at the current time according to output probabilities at the current time of at least one binary sensor deployed in the detection region; and selecting at least one condition-compliant matrix from the candidate matrices at the current time according to the estimation results, and using the selected matrix as an occupation detection result at the current time.
    Type: Application
    Filed: April 25, 2013
    Publication date: January 30, 2014
    Applicant: NEC (China) Co., Ltd.
    Inventors: Lu Yu, Lei Song, Changjian Hu, Kai Zhao
  • Publication number: 20130238155
    Abstract: Embodiments of the invention disclose a method and apparatus for detecting the statuses of energy source consumption devices, relate to the field of energy source auditing and are intended to improve the efficiency and accuracy of detecting the statuses of the energy source consumption devices.
    Type: Application
    Filed: December 14, 2012
    Publication date: September 12, 2013
    Applicant: NEC (CHINA) CO., LTD.
    Inventors: LEI SONG, CHANGJIAN HU, LU YU, KAI ZHAO
  • Patent number: 8527487
    Abstract: The present invention provides a method and system for automatic construction of information organization structure for related information browsing. The method comprises: inputting a target entity; retrieving information objects related to the target entity from an information object set; extracting topics related to the target entity; searching an existing structure resource to identify existing structures and entities which are relevant to the target entity based on the extracted topics; and selecting a matched structure, which is used for organizing the retrieved information objects related to the target entity, from the identified existing structures by comparing the target entity with each of the identified entities. Compared with the prior arts, the present invention can largely improve the readability of the relevant generated information organization structure.
    Type: Grant
    Filed: November 16, 2009
    Date of Patent: September 3, 2013
    Assignee: NEC (China) Co., Ltd.
    Inventors: Changjian Hu, Kai Zhao, Min Zhao, Likun Qiu
  • Publication number: 20100131485
    Abstract: The present invention provides a method and system for automatic construction of information organization structure for related information browsing. The method comprises: inputting a target entity; retrieving information objects related to the target entity from an information object set; extracting topics related to the target entity; searching an existing structure resource to identify existing structures and entities which are relevant to the target entity based on the extracted topics; and selecting a matched structure, which is used for organizing the retrieved information objects related to the target entity, from the identified existing structures by comparing the target entity with each of the identified entities. Compared with the prior arts, the present invention can largely improve the readability of the relevant generated information organization structure.
    Type: Application
    Filed: November 16, 2009
    Publication date: May 27, 2010
    Applicant: NEC (CHINA) CO., LTD.
    Inventors: Changjian HU, Kai ZHAO, Min ZHAO, Likun QIU
  • Publication number: 20090119336
    Abstract: The present invention provides an apparatus and a method for categorizing entities based on time-series relation graphs. In each of the time-series relation graphs within a prescribed time period, nodes represent entities, and links between the nodes represent entity relations in a corresponding time unit. The inventive apparatus for categorizing entities based on time-series relation graphs comprises: a time-series relation graph categorizing means for categorizing the nodes in each of the time-series relation graphs to generate a node category result for the corresponding time unit in time sequence; and a category result post-processing means for post-processing all the node category results for the corresponding time units in time sequence generated by the time-series relation graph categorizing means to generate finally categorized nodes.
    Type: Application
    Filed: October 30, 2008
    Publication date: May 7, 2009
    Applicant: NEC (CHINA) CO., LTD.
    Inventors: Liqin XU, Changjian HU, Toshikazu FUKUSHIMA
  • Publication number: 20090112825
    Abstract: The present invention provides a relation mining apparatus and method for mining data for time-series relations and events among texts in various forms such as news, blogs, industrial reports and technical papers which may refer to various relations. According to the present invention, it is possible to automatically extract entity relation instances from a large amount of the texts as described above originating from the Internet or other mediums, mine for time-series entity relations, relation scores and entity importances in various categories based on the extracted instances, and finally extract important events therefrom. Also, according to the present invention, it is possible to perform calculating on the above extracted time-series relations for the corporation entities and business relations, so as to achieve an analysis on Five Forces. Further, it is also possible to present the result to final users by a visualizing module.
    Type: Application
    Filed: October 30, 2008
    Publication date: April 30, 2009
    Applicant: NEC (CHINA) CO., LTD
    Inventors: Liqin XU, Changjian HU, Toshikazu FUKUSHIMA