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    Method and system for noise-tolerant RC response prediction
    11.
    发明授权
    Method and system for noise-tolerant RC response prediction 有权

    公开(公告)号：US10816606B2

    公开(公告)日：2020-10-27

    申请号：US16239188

    申请日：2019-01-03

    Applicant: GM Global Technology Operations LLC

    Inventor： Yue Fan ,  Russell K. Steele ,  Andrew C. Baughman ,  Peter Kung Chiang

    IPC: G01R31/389 ,  B60L58/12 ,  G01R31/00 ,  G01R31/367 ,  B60L58/14 ,  H02J7/00 ,  H02P27/06

    Abstract: An electrical system includes a voltage bus, voltage sensor(s) measuring a first voltage between a positive bus rail and electrical ground, and a second voltage between a negative bus rail and electrical ground, a bias resistor, and a controller. When the switch is closed, the controller measures four or more discrete voltage samples of the first and second voltages. The samples are grouped into first and second sample groups each having three discrete voltage samples, with the second and third voltage samples of the first group being the first and second samples of the second group. The controller estimates a steady-state voltage of the first and second voltages using the sample groups, prior to the first and second voltages converging on actual steady-state voltage values. The controller executes a corresponding control action when the steady-state voltage estimate is stable or unstable relative to a defined stability threshold.

    Diagnostic method for electric propulsion system with reconfigurable battery system
    15.
    发明授权
    Diagnostic method for electric propulsion system with reconfigurable battery system 有权

    公开(公告)号：US10992147B2

    公开(公告)日：2021-04-27

    申请号：US16582692

    申请日：2019-09-25

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Shifang Li ,  William T. Ivan ,  Brendan M. Conlon ,  Yue Fan

    IPC: H02J7/00 ,  B60L50/60 ,  B60L15/00

    Abstract: An electric propulsion system for a mobile platform includes a battery system connected to positive and negative bus rails, an accessory load having a rotary electric machine, a traction power inverter module (“TPIM”), and an accessory load, switches configured to transition the battery modules to a series-connected (“S-connected”) configuration during a direct current fast-charging (“DCFC”) operation of the battery system, and a controller. When battery modules of the battery system are connected in series during a direct current fast-charging (“DCFC”) operation, the controller executes a diagnostic method to determine bus rail voltages on the positive and negative bus rails and a mid-bus voltage, identifies a diagnosed electrical condition of the electric propulsion system by comparing the voltages to expected values or ranges, and executes a control action in response to the diagnosed electrical condition.

    ACTIVE ISOLATION DETECTION USING ADAPTIVE BIAS RESISTANCE
    16.
    发明申请
    ACTIVE ISOLATION DETECTION USING ADAPTIVE BIAS RESISTANCE 有权

    公开(公告)号：US20210041505A1

    公开(公告)日：2021-02-11

    申请号：US16533180

    申请日：2019-08-06

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Yue Fan ,  Shifang Li ,  Russell K. Steele ,  James E. Tarchinski

    IPC: G01R31/36 ,  G01R31/364 ,  G01R31/385

    Abstract: An active isolation detection method may be used with an electrical system having a battery pack connected to a high-voltage bus. The bus has positive and negative bus rails, each having a respective rail-to-ground voltage. The method may include connecting variable resistance element to the high-voltage bus, and determining input information indicative electrical characteristics of the battery pack, the high-voltage bus, and/or a charging station. The method includes varying a bias resistance of the high-voltage bus, via control of the variable resistance element, e.g., via duty cycle control of a binary switch in series with a bias resistor, to produce a varied bias resistance based on the input information. A target voltage shift is achieved on the high-voltage bus as a target level of change in one of the rail-to-ground voltages. An isolation resistance of the electrical system is determined via the controller using the varied bias resistance.

    System and method for trip randomization and gamification
    17.
    发明授权
    System and method for trip randomization and gamification 有权

    公开(公告)号：US10768010B2

    公开(公告)日：2020-09-08

    申请号：US16030080

    申请日：2018-07-09

    Applicant: GM Global Technology Operations LLC

    Inventor： Zachary S. Mendla ,  Yue Fan ,  Mike Aljamal ,  Marco J. Gatti

    IPC: G01C21/36 ,  G06F3/0481 ,  G01C21/34

    Abstract: A destination selection system for determining travel destinations includes a human-machine interface (HMI); a positioning system in communication with the HMI; a controller in communication with the HMI and the positioning system, the controller having a processor, and a memory, the processor executing programmatic logic stored in the memory. The programmatic logic includes a first logic to display an icon on the HMI based on position data received from the positioning system; and a second logic for sizing the icon based on at least one of the position data and one or more additional factors, and in response to at least one of the position data and one or more additional factors actively and continuously resizing the icon.

    METHOD AND APPARATUS THAT DISPLAY VIEW ALERT
    18.
    发明申请
    METHOD AND APPARATUS THAT DISPLAY VIEW ALERT 审中-公开

    公开(公告)号：US20190122382A1

    公开(公告)日：2019-04-25

    申请号：US15791689

    申请日：2017-10-24

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Yue Fan ,  Mike Aljamal ,  Zachary S. Mendla

    IPC: G06T7/73 ,  B60R1/00 ,  G06T7/246 ,  G01P15/08

    Abstract: A method and apparatus that display a view alert are provided. The method includes determining that information of a sensor is being provided, in response to determining that the information of the sensor is being provided, determining whether an angle or field of view of the sensor is correctly oriented, and in response to determining that the angle or field of view of the camera is incorrectly oriented, providing an alert indicating that the angle or field of view of the camera is incorrectly oriented.

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