Patents by Inventor Huiqi Lu

Huiqi Lu 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).

  • Apparatus and method for detecting internal resistance of battery
    Patent number: 12072388
    Abstract: This application discloses an apparatus and a method for detecting internal resistance of a battery, applied to the field of intelligent vehicles. The apparatus includes: a processing circuit, a differential amplifier, and a charging circuit. The processing circuit is configured to input a first comparison voltage to a second input end of the differential amplifier and maintain the first comparison voltage. The differential amplifier is configured to output a first output voltage based on the first detection voltage and the first comparison voltage. The processing circuit is further configured to control the charging circuit to charge the battery by using a constant current, and detect a second detection voltage of the battery after the battery is charged. The differential amplifier is further configured to output a second output voltage based on the second detection voltage and the first comparison voltage.
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: August 27, 2024
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventor: Huiqi Lu
  • Apparatus and Method for Detecting Internal Resistance of Battery
    Publication number: 20220373604
    Abstract: This application discloses an apparatus and a method for detecting internal resistance of a battery, applied to the field of intelligent vehicles. The apparatus includes: a processing circuit, a differential amplifier, and a charging circuit. The processing circuit is configured to input a first comparison voltage to a second input end of the differential amplifier and maintain the first comparison voltage. The differential amplifier is configured to output a first output voltage based on the first detection voltage and the first comparison voltage. The processing circuit is further configured to control the charging circuit to charge the battery by using a constant current, and detect a second detection voltage of the battery after the battery is charged. The differential amplifier is further configured to output a second output voltage based on the second detection voltage and the first comparison voltage.
    Type: Application
    Filed: October 26, 2020
    Publication date: November 24, 2022
    Inventor: Huiqi Lu