中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

8 records (took 0.06 seconds)

    HIGH VOLTAGE BUS-TO-CHASSIS ISOLATION RESISTANCE AND Y-CAPACITANCE MEASUREMENT
    2.
    发明申请
    HIGH VOLTAGE BUS-TO-CHASSIS ISOLATION RESISTANCE AND Y-CAPACITANCE MEASUREMENT 有权
    高电压总线隔离电阻和Y电容测量

    公开(公告)号：US20140058687A1

    公开(公告)日：2014-02-27

    申请号：US13973362

    申请日：2013-08-22

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Fang Wang ,  Wei Liu ,  Jochen Lenz ,  Peter Andres

    IPC: G01R31/36

    CPC classification number: G01R31/3624 ,  G01R27/025 ,  G01R31/006 ,  G01R31/025 ,  H01M2/1094 ,  H01M10/4228 ,  H01M10/48 ,  H01M2220/20

    Abstract: A system and method of simultaneously calculating an isolation resistance and a y-capacitance of a RESS may include the steps of: injecting a first signal into a RESS; recording an output signal from the RESS in response to the injection of the first signal; multiplying the first signal with the output signal to determine a first product; multiplying a second signal with the output signal to determine a second product wherein the second signal is orthogonal to the first signal; filtering the first product to determine a first constant; filtering the second product to determine a second constant; processing the first constant to determine a y-capacitance value; and processing the second constant to determine an isolation resistance value.

    Abstract translation: 同时计算RESS的隔离电阻和y电容的系统和方法可以包括以下步骤：将第一信号注入RESS; 响应于所述第一信号的注入，记录来自所述RESS的输出信号; 将第一信号与输出信号相乘以确定第一乘积; 将第二信号与所述输出信号相乘以确定第二乘积，其中所述第二信号与所述第一信号正交; 过滤第一个产品以确定第一个常数; 过滤第二产品以确定第二常数; 处理第一常数以确定y电容值; 并处理第二常数以确定隔离电阻值。

    JOINT ACTIVE THERMAL MANAGEMENT SYSTEM AND CONTROL LOGIC FOR HYBRID AND ELECTRIC VEHICLES
    4.
    发明申请
    JOINT ACTIVE THERMAL MANAGEMENT SYSTEM AND CONTROL LOGIC FOR HYBRID AND ELECTRIC VEHICLES 审中-公开

    公开(公告)号：US20190039434A1

    公开(公告)日：2019-02-07

    申请号：US15666051

    申请日：2017-08-01

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： William J. Wallace ,  Pablo Valencia, JR. ,  Wei Liu ,  Peter J. Carleton

    IPC: B60H1/00 ,  B60H1/32 ,  B60L11/18 ,  B60K6/22

    Abstract: Disclosed are joint active thermal management (ATM) systems for electric-drive vehicles, control logic for operating such ATM systems, and electric-drive vehicles equipped with a joint ATM system for heating/cooling the powertrain's drive unit (DU) section, power electronics (PE) section, and rechargeable energy storage system (RESS) section. A disclosed active thermal management system includes a first coolant loop with fluid conduits fluidly connecting a first electronic heat exchanger and a first pump with the DU and PE sections. The ATM system also includes a second coolant loop with fluid conduits fluidly connecting a second electronic heat exchanger and a second pump with the RESS section. A coolant-to-coolant heat exchanger, which is fluidly connected to the first and second coolant loops, is operable to selectively transfer heat between the coolant fluid circulating in the first set of fluid conduits and the coolant fluid circulating in the second set of fluid conduits.

    Systems and methods to protect against over-discharge in a battery system
    5.
    发明授权
    Systems and methods to protect against over-discharge in a battery system 有权
    防止电池系统过度放电的系统和方法

    公开(公告)号：US09395327B2

    公开(公告)日：2016-07-19

    申请号：US13690886

    申请日：2012-11-30

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Robert C. Baraszu ,  Kurt M. Johnson ,  Zachary D. Bylsma ,  Damon R. Frisch ,  Wei Liu ,  David S. Maxwell

    IPC: G01N27/416 ,  H01M10/48

    CPC classification number: G01N27/416 ,  H01M10/482 ,  H01M2220/20

    Abstract: A battery system may include a plurality of subdivisions, such as battery cells or sub-packs. A measurement system configured to determine a subdivision electrical parameter associated with each of a plurality of subdivisions. A battery control may identify a subdivision satisfying a criterion based on the plurality of subdivision electrical parameters. According to some embodiments, the battery control system may determine a ratio of the subdivision electrical parameter of the identified subdivision to the electrical parameter of the battery pack. The ratio may be used to scale the electrical parameter associated with the battery pack by the ratio. According to other embodiments, the subdivision electrical parameter associated with the identified subdivision may be provided to a battery state estimation system. The scaled electrical parameter or the electrical parameter associated with the identified subdivision may be used by a battery state estimation system to generate an estimated battery state.

    Abstract translation: 电池系统可以包括多个细分，诸如电池单元或子包。 一种测量系统，被配置为确定与多个子部分中的每一个相关联的细分电参数。 电池控制可以基于多个细分电参数识别满足标准的细分。 根据一些实施例，电池控制系统可以确定所识别的细分的细分电参数与电池组的电参数的比率。 该比率可以用于按比例缩放与电池组相关联的电参数。 根据其他实施例，可以将与所识别的细分相关联的细分电参数提供给电池状态估计系统。 缩放的电参数或与所识别的细分相关联的电参数可以由电池状态估计系统使用以产生估计的电池状态。

    Method and apparatus for controlling a hybrid powertrain system
    6.
    发明授权
    Method and apparatus for controlling a hybrid powertrain system 有权

    公开(公告)号：US10343673B2

    公开(公告)日：2019-07-09

    申请号：US15634749

    申请日：2017-06-27

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Wei Liu ,  Pablo Valencia, Jr. ,  Leng Mao ,  Sudhakar Inguva ,  Ryan B. Moulliet

    IPC: B60W20/13 ,  B60W10/06 ,  B60W10/08 ,  B60W10/26 ,  B60L53/00

    Abstract: A hybrid powertrain system includes a method for managing electrical charging of a DC power source, which includes determining an initial charge-sustaining SOC setpoint and an initial charge-termination SOC setpoint. The DC power source is dynamically monitored. An adjustment to a charge-sustaining SOC setpoint is determined based upon the ambient temperature, the device temperature and the SOC of the DC power source, and an updated charge-sustaining SOC setpoint is determined based upon the adjustment to the charge-sustaining SOC setpoint and the initial charge-sustaining SOC setpoint. An electric energy equalization factor α is determined, and an updated charge termination SOC setpoint can be determined based upon the electric energy equalization factor α, the updated charge-sustaining SOC setpoint and the initial charge-sustaining SOC setpoint. Charging of the DC power source is controlled based upon the updated charge-termination SOC setpoint.

    Joint active thermal management system and control logic for hybrid and electric vehicles
    7.
    发明授权
    Joint active thermal management system and control logic for hybrid and electric vehicles 有权

    公开(公告)号：US10252597B2

    公开(公告)日：2019-04-09

    申请号：US15666051

    申请日：2017-08-01

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： William J. Wallace ,  Pablo Valencia, Jr. ,  Wei Liu ,  Peter J. Carleton

    IPC: B60H1/00 ,  B60H1/32 ,  B60L11/18 ,  B60K6/22 ,  B60K1/00

    Abstract: Disclosed are joint active thermal management (ATM) systems for electric-drive vehicles, control logic for operating such ATM systems, and electric-drive vehicles equipped with a joint ATM system for heating/cooling the powertrain's drive unit (DU) section, power electronics (PE) section, and rechargeable energy storage system (RESS) section. A disclosed active thermal management system includes a first coolant loop with fluid conduits fluidly connecting a first electronic heat exchanger and a first pump with the DU and PE sections. The ATM system also includes a second coolant loop with fluid conduits fluidly connecting a second electronic heat exchanger and a second pump with the RESS section. A coolant-to-coolant heat exchanger, which is fluidly connected to the first and second coolant loops, is operable to selectively transfer heat between the coolant fluid circulating in the first set of fluid conduits and the coolant fluid circulating in the second set of fluid conduits.

Patent Agency Ranking