INTERLEAVED CONVERTER POWER SYSTEM
    21.
    发明申请

    公开(公告)号:US20190031043A1

    公开(公告)日:2019-01-31

    申请号:US15659310

    申请日:2017-07-25

    Abstract: A power system is configured to deliver direct current (DC) electric power to an energy storage system (ESS) at a first voltage and to deliver DC electric power from the ESS at a second voltage. A converter is coupled to an electric power source at the second voltage. The converter includes a boost converter and a buck converter. The boost converter and the buck converter are configurable in a first interleaved arrangement and in a second interleaved arrangement, different than the first interleaved arrangement. In the first interleaved arrangement the converter provides DC electric power from the power source to the ESS at the first voltage, and in the second interleaved arrangement the converter provides DC electric power from the ESS to the power source at the second voltage.

    METHOD AND APPARATUS FOR CONTROLLING A POWERTRAIN SYSTEM INCLUDING MULTIPLE TORQUE-GENERATIVE DEVICES
    23.
    发明申请
    METHOD AND APPARATUS FOR CONTROLLING A POWERTRAIN SYSTEM INCLUDING MULTIPLE TORQUE-GENERATIVE DEVICES 有权
    用于控制包括多个扭矩生成装置的动力系统的方法和装置

    公开(公告)号:US20160272188A1

    公开(公告)日:2016-09-22

    申请号:US14663550

    申请日:2015-03-20

    Abstract: A powertrain system includes an internal combustion engine having a crankshaft that fixedly couples to an input member of a multi-mode transmission including first and second torque machines. The transmission operates in one of a plurality of fixed-gear modes and variable modes through selective activation of first and second clutches. A control method includes, in response to a command to operate the multi-mode transmission in a fixed-gear mode, activating only the first clutch and commanding the engine to an OFF state. The first torque machine is controlled to generate a first torque output responsive to a drag torque that is offset by an engine reactive torque with the engine in the OFF state. The transmission operates in the fixed-gear mode by controlling the second torque machine to generate a second torque output responsive to an operator torque request and the first torque output of the first torque machine.

    Abstract translation: 动力系统包括具有固定地耦合到包括第一和第二扭矩机的多模变速器的输入构件的曲轴的内燃机。 通过选择性地激活第一和第二离合器,变速器以多个固定齿轮模式和可变模式中的一个运行。 控制方法包括响应于以固定档模式操作多模变速器的命令,仅启动第一离合器并且将发动机命令为OFF状态。 第一扭矩机被控制以响应于由发动机处于OFF状态的发动机反作用转矩而被偏移的拖曳扭矩产生第一扭矩输出。 通过控制第二扭矩机以响应于操作者扭矩请求和第一扭矩机的第一扭矩输出而产生第二扭矩输出,变速器以固定齿轮模式运行。

    Electrically variable transmission for a hybrid vehicle using flywheel kinetic energy recovery
    24.
    发明授权
    Electrically variable transmission for a hybrid vehicle using flywheel kinetic energy recovery 有权
    使用飞轮动能回收的混合动力车辆的电动变速器

    公开(公告)号:US09302574B2

    公开(公告)日:2016-04-05

    申请号:US13870868

    申请日:2013-04-25

    Abstract: An electrically variable transmission for a hybrid vehicle includes a pair of drive wheels each driven by a final drive gear/differential mechanism. A planetary differential gear set including a plurality of components provides drive torque to the final drive gear/differential mechanism. A first motor generator is drivingly connected to a first component of the plurality of components of the planetary differential gear set. A second motor generator is drivingly connected to a second component of the plurality of components of the planetary differential gear set. A flywheel is drivingly connected to the planetary differential gear set by a reduction gear. A first brake is connected to one of the plurality of components of the planetary differential gear set.

    Abstract translation: 用于混合动力车辆的电动变速箱包括一对驱动轮,每个驱动轮由最终驱动齿轮/差速机构驱动。 包括多个部件的行星齿轮组向最终驱动齿轮/差动机构提供驱动扭矩。 第一电动发电机驱动地连接到行星齿轮组的多个部件的第一部件。 第二电动发电机驱动地连接到行星齿轮组的多个部件的第二部件。 飞轮通过减速齿轮驱动地连接到行星齿轮组。 第一制动器连接到行星齿轮组的多个部件中的一个。

    Diagnostic method for electric propulsion system with reconfigurable battery system

    公开(公告)号:US10992147B2

    公开(公告)日:2021-04-27

    申请号:US16582692

    申请日:2019-09-25

    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.

    VEHICLE AND ELECTRICAL SYSTEM WITH DUAL BATTERY MODULES

    公开(公告)号:US20200055404A1

    公开(公告)日:2020-02-20

    申请号:US16102802

    申请日:2018-08-14

    Abstract: An electrical system includes cables, a DC charge connector, first and second battery modules, a splice device, and a controller. Each battery module has first, second, third, and fourth electrical connectors receiving a respective one of the cables. The battery modules are connected to each other via the cables, and further have first, second, third, and fourth switches that connect battery cell strings to one or more connectors. The charge connector is connected to one of the cables between the first electrical connectors. The splice device connects the charge connector to the first connector of the first battery module and to a pair of the cables. A charging current may be split between the battery modules. The controller selectively establishes parallel charging, parallel drive, and separate drive and charging modes for each battery module. The system may have an independent drive mode.

    Powertrain with high-power distribution module and high-current ring terminal connection for the same

    公开(公告)号:US10005366B1

    公开(公告)日:2018-06-26

    申请号:US15367834

    申请日:2016-12-02

    Abstract: A system includes a rechargeable energy storage system (RESS) having an enclosure, battery cells, contactors, a first pair of high-voltage interlock (HVIL) ports, and female blind-mate electrical sockets selectively connected to the battery cells via the contactors. The battery cells and contactors are within the RESS enclosure. The system includes a high-power distribution module (HPDM) having another enclosure, male blind-mate electrical pins, a second pair of HVIL ports engagable with the first pair, ring-terminal connections connected to the blind-mate electrical pins and connectable to high-current components, and HV280 electrical connectors electrically connected to one or more of the male blind-mate electrical pins. The male blind-mate electrical pins insert directly into and engage with the female blind-mate electrical sockets of the RESS enclosure. A vehicle includes the system, a transmission, and an electric machine.

    Hybrid powertrain with three-mode depletion strategy and method of operating a hybrid powertrain
    29.
    发明授权
    Hybrid powertrain with three-mode depletion strategy and method of operating a hybrid powertrain 有权
    具有三模式消耗策略的混合动力总成和操作混合动力总成的方法

    公开(公告)号:US09327589B2

    公开(公告)日:2016-05-03

    申请号:US14101699

    申请日:2013-12-10

    Abstract: A hybrid powertrain for propelling a vehicle includes an engine and an energy storage system operatively connected to the engine. Both the engine and the energy storage system are operable for providing power to propel the vehicle. A control system is operatively connected to the engine and the energy storage system and is configured to execute a stored algorithm that determines required energy reserve, remaining energy, and power capability of the energy storage system. The control system commands operation in one of a first operating mode, a second operating mode, and a third operating mode based on the required energy reserve, the remaining energy, and the power capability of the energy storage system.

    Abstract translation: 用于推进车辆的混合动力系统包括可操作地连接到发动机的发动机和能量存储系统。 发动机和能量存储系统都可操作以提供动力以推动车辆。 控制系统可操作地连接到发动机和能量存储系统,并且被配置为执行存储的算法,其确定能量存储系统的所需能量储备,剩余能量和功率能力。 控制系统基于能量存储系统的所需能量储备,剩余能量和功率能力,以第一操作模式,第二操作模式和第三操作模式中的一个命令操作。

    Method and apparatus for controlling a shift in a multi-mode powertrain system
    30.
    发明授权
    Method and apparatus for controlling a shift in a multi-mode powertrain system 有权
    用于控制多模动力系统中的换档的方法和装置

    公开(公告)号:US09005076B2

    公开(公告)日:2015-04-14

    申请号:US13693185

    申请日:2012-12-04

    Abstract: A method for operating a powertrain system includes executing a transmission shift between an initial electrically-variable transmission (EVT) range and a target EVT range. The transmission shift includes transitioning to operating with three speed degrees of freedom including controlling speed of a second torque machine to synchronize speed of an oncoming clutch associated with the target EVT range and coincidentally controlling speeds of a first torque machine and an engine to achieve a preferred speed of the output member of the transmission. The transmission shift further includes controlling torque output from the first torque machine in response to an output torque request, and activating the oncoming clutch upon synchronizing the speed of the oncoming clutch. Subsequent to the transmission shift, the powertrain system is operated in the target EVT range.

    Abstract translation: 一种用于操作动力系统的方法包括执行初始电动变速器(EVT)范围和目标EVT范围之间的变速器换档。 变速器换档包括以三速自由度转变为操作,包括控制第二扭矩机的速度以使与目标EVT范围相关联的迎面而来的离合器的速度同步地控制第一扭矩机和发动机的速度,以实现优选的 变速箱的输出构件的速度。 变速器换档还包括响应于输出扭矩请求控制来自第一扭矩机的扭矩输出,并且在同步迎面而来的离合器的速度时启动迎面而来的离合器。 在变速器换档之后,动力系统在目标EVT范围内运行。

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