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    Impedance estimation of power sources via motor inverter circuits
    1.
    发明授权
    Impedance estimation of power sources via motor inverter circuits 有权

    公开(公告)号：US11757391B1

    公开(公告)日：2023-09-12

    申请号：US17676535

    申请日：2022-02-21

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Lei Hao ,  Yue-Yun Wang ,  Steven E. Muldoon

    IPC: H02P23/14 ,  G01R27/02 ,  G01R31/389 ,  B60L15/20 ,  H02P27/08 ,  H02P29/68

    CPC classification number: H02P23/14 ,  B60L15/20 ,  G01R27/02 ,  G01R31/389 ,  H02P27/08 ,  H02P29/68

    Abstract: A motor drive system of a vehicle includes: an inverter that receives power from a power source via a bus, where the inverter is connected to a motor of the vehicle; a driver that drives the inverter; a filter that filters a current signal received from the bus to generate a filtered signal; and a control module that operates in an impedance determination mode. The impedance determination mode includes: based on the filtered signal, controlling the driver and the inverter to generate a pulsed signal applied to the power source; determining a current level and a voltage of the power source due to generation of the pulsed signal, and determining impedance based on the current level and the voltage. The control modules are configured to: determine a characterization parameter of the power source based on the impedance; and perform a control operation or a countermeasure based on the characterization parameter.

    WRONG-WAY DRIVING DETECTION AND COLLISION MITIGATION
    4.
    发明申请
    WRONG-WAY DRIVING DETECTION AND COLLISION MITIGATION 有权

    公开(公告)号：US20220185312A1

    公开(公告)日：2022-06-16

    申请号：US17120379

    申请日：2020-12-14

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Bharatkumar HEGDE ,  Steven E. Muldoon

    IPC: B60W50/16 ,  B60W30/095 ,  B60W40/10 ,  B60W10/18 ,  H04W4/40

    Abstract: A system includes a processor and a memory storing instructions which when executed by the processor configure the processor to receive data from a plurality of sensors in a vehicle, the sensors including a Global Navigation Satellite System receiver, accelerometers, gyroscopes, and magnetometers; and to determine a location of the vehicle and a direction of motion of the vehicle based on the data and a history of locations of the vehicle in prior N seconds, where N is a number greater than 0. The instructions configure the processor to determine a permitted driving direction for the vehicle based on the location of the vehicle and a map database; and to detect whether the vehicle is moving in a wrong direction based on the permitted driving direction and the direction of motion of the vehicle.

    METHOD AND APPARATUS FOR CONTROLLING A VEHICLE INCLUDING AN ADAPTIVE CRUISE CONTROL SYSTEM
    5.
    发明申请
    METHOD AND APPARATUS FOR CONTROLLING A VEHICLE INCLUDING AN ADAPTIVE CRUISE CONTROL SYSTEM 审中-公开

    公开(公告)号：US20200324766A1

    公开(公告)日：2020-10-15

    申请号：US16380275

    申请日：2019-04-10

    Applicant: GM Global Technology Operations LLC

    Inventor： Junfeng Zhao ,  Yiran Hu ,  Dongxu Li ,  Steven E. Muldoon ,  Chen-Fang Chang

    IPC: B60W30/16 ,  B60W10/04 ,  B60W10/18

    Abstract: Operating a subject vehicle equipped with an adaptive cruise control system includes setting initial states for control parameters, including setting a desired vehicle speed and determining a desired following gap range, wherein the desired following gap range is associated with a lead vehicle. Operation is controlled via the adaptive cruise control system based upon the initial states for the control parameters. Operation also includes monitoring for presence of the lead vehicle. Upon detecting presence of the lead vehicle, an actual following gap is determined between the subject vehicle and the lead vehicle, and the initial states of the control parameters associated with the adaptive cruise control system are adjusted based upon the actual following gap between the subject vehicle and the lead vehicle, and the desired following gap range. Operation is controlled via the adaptive cruise control system based upon the adjusted initial states of the control parameters.

    METHOD OF CONTROLLING A VEHICLE TO ADJUST PERCEPTION SYSTEM ENERGY USAGE
    6.
    发明申请
    METHOD OF CONTROLLING A VEHICLE TO ADJUST PERCEPTION SYSTEM ENERGY USAGE 审中-公开

    公开(公告)号：US20190302877A1

    公开(公告)日：2019-10-03

    申请号：US15944003

    申请日：2018-04-03

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Yiran Hu ,  Steven E. Muldoon ,  Wei Tong ,  Shige Wang

    IPC: G06F1/32 ,  G07C5/00

    Abstract: A method of controlling a vehicle includes determining a current operating situation of the vehicle, and identifying a subset of a plurality of sensors of the vehicle needed to provide data to enable a vehicle control function for the current operating situation of the vehicle. A remainder of the plurality of sensors is disengaged to reduce electric energy usage by the vehicle while the vehicle is operating in the current operating situation of the vehicle. A sampling rate for the selected subset of sensors may be reduced to further reduce energy usage of the vehicle. Additionally, an energy reduction processing strategy may be implemented to reduce a processor frequency or a voltage of a computing device used to provide the vehicle control function to further reduce energy usage of the vehicle.

    PREDICTION OF INTAKE MANIFOLD PRESSURE IN AN ENGINE SYSTEM
    7.
    发明申请
    PREDICTION OF INTAKE MANIFOLD PRESSURE IN AN ENGINE SYSTEM 有权
    在发动机系统中预测入口压力

    公开(公告)号：US20160237941A1

    公开(公告)日：2016-08-18

    申请号：US14623819

    申请日：2015-02-17

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Yiran Hu ,  Ibrahim Haskara ,  Shifang Li ,  Sai S.V. Rajagopalan ,  Steven E. Muldoon ,  Chen-Fang Chang

    IPC: F02D41/26 ,  F02D9/02 ,  F02M35/10

    CPC classification number: F02D9/02 ,  F02D41/0002 ,  F02D41/10 ,  F02D41/18 ,  F02D2009/0225 ,  F02D2009/0228 ,  F02D2009/0294 ,  F02D2200/0404 ,  F02D2200/0406 ,  F02D2200/0408 ,  F02D2200/0414 ,  Y02T10/42

    Abstract: An engine assembly includes an intake manifold and a manifold absolute pressure sensor configured to generate a current measured manifold absolute pressure (MAPM) signal for the intake manifold. The assembly includes a throttle valve adjustable to control airflow to the intake manifold and a throttle position sensor configured to generate a current measured throttle position (TPM) signal. A controller is operatively connected to the throttle valve and the manifold absolute pressure sensor and has a processor and tangible, non-transitory memory on which is recorded instructions for executing a method for determining a predicted manifold absolute pressure (MAPP). Execution of the instructions by the processor causes the controller to determine the predicted manifold absolute pressure (MAPP) based at least partially on a predicted throttle flow (TFP) and the current measured manifold absolute pressure (MAPM) signal.

    Abstract translation: 发动机组件包括进气歧管和歧管绝对压力传感器，其构造成产生用于进气歧管的电流测量歧管绝对压力（MAPM）信号。 组件包括可调节以控制到进气歧管的气流的节流阀和构造成产生电流测量节气门位置（TPM）信号的节气门位置传感器。 控制器可操作地连接到节流阀和歧管绝对压力传感器，并且具有处理器和有形的非暂时性存储器，其上记录有用于执行用于确定预测歧管绝对压力（MAPP）的方法的指令。 由处理器执行指令使得控制器至少部分地基于预测的油门流量（TFP）和当前测量的歧管绝对压力（MAPM）信号来确定预测的歧管绝对压力（MAPP）。

    POWERTRAIN CONTROL SYSTEM AND METHOD OF OPERATING THE SAME
    8.
    发明申请
    POWERTRAIN CONTROL SYSTEM AND METHOD OF OPERATING THE SAME 审中-公开

    公开(公告)号：US20190375403A1

    公开(公告)日：2019-12-12

    申请号：US16003223

    申请日：2018-06-08

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Yiran Hu ,  Junfeng Zhao ,  Steven E. Muldoon ,  Chen-Fang Chang

    IPC: B60W30/14

    Abstract: A system and method are provided for operating a powertrain control system. The method includes receiving data measured from a plurality of sensors, the measured data relating to distance dependent speed values, and receiving information from one or more vehicle modules, the vehicle module information relating to distance independent speed values. The method further includes building a speed trajectory profile for a horizon window that includes a plurality of speed change regions represented by at least some distance dependent speed values or at least some distance independent speed values, and creating a synthesized speed profile for the horizon window by processing the speed trajectory profile. The synthesized speed profile optimizes efficiency of the powertrain control system at each of the plurality of speed change regions.

    Method and apparatus for vehicle accessory and load management
    10.
    发明授权
    Method and apparatus for vehicle accessory and load management 有权

    公开(公告)号：US10099702B2

    公开(公告)日：2018-10-16

    申请号：US15247252

    申请日：2016-08-25

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Steven E. Muldoon ,  Dongxu Li ,  Yiran Hu ,  Jun-mo Kang ,  Chen-fang Chang

    IPC: B60W50/00 ,  B60W10/06 ,  B60W10/30 ,  B60W30/182 ,  B60W30/188

    Abstract: A vehicle is described, and includes a drivetrain system including an internal combustion engine and a geartrain, an accessory device, and a route monitoring system. A controller includes an instruction set to monitor operation of the accessory device, and a request to operate the accessory device. When the request to operate the accessory device includes a request to activate the accessory device based upon not exceeding a limit for an operating parameter of the accessory device, the instruction set executes to determine a horizon for the vehicle based upon the projected path for the vehicle, determine a projected road load and a speed constraint based upon the horizon for the vehicle, and determine a projected axle torque command based upon the projected road load. A first routine determines a first command for operating the accessory device that minimizes fuel consumption and meets the projected axle torque command.

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