Patents by Inventor Ruiqi MAO

Ruiqi MAO 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: 10800284
    Abstract: A vehicle includes a traction battery and a controller in communication with the battery and programmed to control battery charging in response to a user-selected one of a plurality of charging strategies having different charging rates based on detection of lithium plating in the battery. The charging strategies may include options for faster charging with an urgent or emergency charging strategy selectable a limited number of times to mitigate battery performance degradation associated with lithium plating. A method implemented by a vehicle controller in a vehicle having a traction battery, may include controlling, by the controller, battery charging in response to a user-selected charging strategy selected from one of a plurality of available charging strategies each having a different charging rate and displayed on a user interface in response to detection of lithium plating in the traction battery, at least one charging strategy associated with additional lithium plating if selected.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: October 13, 2020
    Assignee: Ford Global Technologies, LLC
    Inventors: Chuan He, Feng Li, Ruiqi Mao
  • Patent number: 10137792
    Abstract: A vehicle having a traction battery with at least one cell includes a controller coupled to the traction battery and programmed to control charging and discharging of the traction battery in response to detecting lithium plating in the at least one cell indicated by a ratio of differential voltage of the at least one cell as a function of time to cell charging rate of the at least one cell. In various embodiments, the ratio is compared to a threshold associated with current battery state of charge to indicate lithium plating when the ratio is below the threshold. Lithium plating can also be detected based on a measured cell open circuit voltage (OCV) relative to a previously stored OCV value. In various embodiments, the measured OCV value is calculated based on a measured cell voltage and current, and a previously stored cell internal resistance.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: November 27, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Chuan He, Jeffrey Cowell, Feng Li, Xu Wang, Ruiqi Mao, Brandon Swisher, Haiyan Chen
  • Publication number: 20170203667
    Abstract: A vehicle includes a traction battery and a controller in communication with the battery and programmed to control battery charging in response to a user-selected one of a plurality of charging strategies having different charging rates based on detection of lithium plating in the battery. The charging strategies may include options for faster charging with an urgent or emergency charging strategy selectable a limited number of times to mitigate battery performance degradation associated with lithium plating. A method implemented by a vehicle controller in a vehicle having a traction battery, may include controlling, by the controller, battery charging in response to a user-selected charging strategy selected from one of a plurality of available charging strategies each having a different charging rate and displayed on a user interface in response to detection of lithium plating in the traction battery, at least one charging strategy associated with additional lithium plating if selected.
    Type: Application
    Filed: January 20, 2016
    Publication date: July 20, 2017
    Inventors: Chuan HE, Feng LI, Ruiqi MAO
  • Publication number: 20170203660
    Abstract: A vehicle having a traction battery with at least one cell includes a controller coupled to the traction battery and programmed to control charging and discharging of the traction battery in response to detecting lithium plating in the at least one cell indicated by a ratio of differential voltage of the at least one cell as a function of time to cell charging rate of the at least one cell. The ratio may be compared to a threshold associated with current battery state of charge to indicate lithium plating when the ratio is below the threshold. Lithium plating may also be detected based on a measured cell open circuit voltage (OCV) relative to a previously stored OCV value. The measured OCV value may be calculated based on a measured cell voltage and current, and a previously stored cell internal resistance.
    Type: Application
    Filed: January 20, 2016
    Publication date: July 20, 2017
    Inventors: Chuan HE, Jeffrey Cowell, Feng LI, Xu Wang, Ruiqi MAO, Brandon Swisher, Haiyan CHEN