Method for starting an engine of a hybrid powertrain
    11.
    发明授权
    Method for starting an engine of a hybrid powertrain 有权
    起动混合动力总成发动机的方法

    公开(公告)号:US08733481B2

    公开(公告)日:2014-05-27

    申请号:US12729276

    申请日:2010-03-23

    IPC分类号: B60W10/04 B60L9/00

    摘要: A method of operating a hybrid powertrain includes commanding an engine start of an engine configured to operate at approximately zero engine speed. A spooling phase includes accelerating the first electric machine with the first machine torque, such that the first electric machine begins rotating. The first machine speed increases in magnitude from zero to non-zero, but engine speed is maintained at approximately zero. The mechanical energy of the rotating first electric machine is stored. A transfer phase includes commanding an increase in magnitude of the first machine torque and decelerating the first electric machine, such that the first machine speed decreases. The stored mechanical energy of the first electric machine is transferred to the engine to increase the engine speed to greater than zero, such that the engine starts.

    摘要翻译: 一种操作混合式动力总成的方法包括命令引擎配置成在大致零发动机速度下操作的发动机起动。 假脱机阶段包括以第一机器转矩加速第一电机,使得第一电机开始转动。 第一台机器速度从零增加到非零,但发动机转速保持在零。 旋转的第一电机的机械能被储存。 传送阶段包括指令第一机器扭矩的大小增加并使第一电机减速,使得第一机器速度降低。 将第一电机的存储的机械能传递到发动机,以将发动机转速提高到大于零,使得发动机起动。

    OUTPUT TORQUE MANAGEMENT IN A VEHICLE HAVING AN ELECTRIC POWERTRAIN
    14.
    发明申请
    OUTPUT TORQUE MANAGEMENT IN A VEHICLE HAVING AN ELECTRIC POWERTRAIN 有权
    具有电动机的车辆的输出扭矩管理

    公开(公告)号:US20120059539A1

    公开(公告)日:2012-03-08

    申请号:US13029381

    申请日:2011-02-17

    IPC分类号: B60L15/20 B60L11/18 F16H59/18

    摘要: A method for managing a threshold increase in output torque capability in a vehicle includes detecting the threshold increase in output torque capability using a controller, and automatically limiting, via the controller, a rate of change of an actual output torque from a transmission of the vehicle in response to the threshold increase. The actual output torque is provided via a traction motor solely using battery power from an energy storage system. The method may include calculating a difference between the threshold increase and the actual output torque, and limiting the rate of change using a rate that is proportional to the difference. A vehicle includes the ESS, a transmission, and a controller. An output member of the transmission is powered using electrical energy from the ESS. The controller manages an increase in output torque capability as noted above.

    摘要翻译: 用于管理车辆的输出转矩能力的阈值增加的方法包括使用控制器检测输出转矩能力的阈值增加,并且经由控制器自动地限制来自车辆的变速器的实际输出转矩的变化率 响应阈值增加。 实际的输出扭矩仅通过来自能量存储系统的电池电力的牵引电动机来提供。 该方法可以包括计算阈值增加与实际输出转矩之间的差异,并且使用与差成比例的速率来限制变化率。 车辆包括ESS,变速器和控制器。 变速箱的输出构件使用ESS的电能供电。 如上所述,控制器管理输出转矩能力的增加。

    Anti-rollback control via grade information for hybrid and conventional vehicles
    15.
    发明授权
    Anti-rollback control via grade information for hybrid and conventional vehicles 有权
    通过混合动力和常规车辆的等级信息进行反卷控制

    公开(公告)号:US08090499B2

    公开(公告)日:2012-01-03

    申请号:US10996095

    申请日:2004-11-23

    申请人: Goro Tamai

    发明人: Goro Tamai

    IPC分类号: B60G17/016

    摘要: A vehicle control system reduces vehicle rollback upon brake release. The control system includes a brake system, a vehicle grade measurement device and a controller that modulates applied brake pressure of the brake system based on a grade measurement of the grade measurement device. The controller actuates brake-hold device communicating with the brake system based on the grade measurement through pulse width modulation. The control system communicates with a motor generator and an engine to provide a start power to the engine upon brake release based on the grade measurement. Fuel injectors of the engine are enabled upon brake release based on the grade measurement. The control system further communicates with a transmission forward clutch to provide selective rotational communication between the transmission and the engine based on the grade measurement.

    摘要翻译: 车辆控制系统减少制动器释放时的车辆回退。 控制系统包括制动系统,车辆等级测量装置和基于等级测量装置的等级测量来调制制动系统的施加的制动压力的控制器。 控制器通过脉冲宽度调制,根据等级测量值来启动与制动系统通信的制动保持装置。 控制系统与电动发电机和发动机通信,以基于等级测量在制动器释放时向发动机提供起动功率。 基于等级测量,制动器释放时启动发动机的燃油喷射器。 控制系统进一步与变速器前进离合器进行通信,以根据档次测量提供变速器和发动机之间的选择性旋转通信。

    Low speed synchronous motor drive operation
    18.
    发明授权
    Low speed synchronous motor drive operation 有权
    低速同步电机驱动运行

    公开(公告)号:US07880416B2

    公开(公告)日:2011-02-01

    申请号:US11856504

    申请日:2007-09-17

    IPC分类号: H02P6/08

    摘要: Methods and apparatus are provided for providing a torque boost in an electric motor system at low speeds. The electric motor system comprises an alternating current (AC) synchronous electric motor, an inverter and a controller. The inverter is coupled to the AC synchronous electric motor and provides electric control therefore. The controller is coupled to the inverter and provides operational control signals thereto for operation of the electric motor. The controller includes a torque command gain block which modifies a torque command to generate a boosted torque signal in response to a detected speed of the electric motor, the torque command modified to define the boosted torque signal defined in accordance with a torque dependent scaling factor calculated in response to the torque command.

    摘要翻译: 提供了用于在电动机系统中以低速提供转矩提升的方法和装置。 电动机系统包括交流(AC)同步电动机,逆变器和控制器。 逆变器耦合到交流同步电动机,因此提供电力控制。 控制器耦合到逆变器,并提供用于电动机的操作的操作控制信号。 所述控制器包括转矩指令增益块,所述转矩指令增益块根据所述电动机的检测速度修正转矩指令以产生升压转矩信号,所述转矩指令被修改以限定根据所计算出的与转矩相关的标度因子所定义的升压转矩信号 响应扭矩指令。

    Method and apparatus for controlling vehicle battery charging
    20.
    发明授权
    Method and apparatus for controlling vehicle battery charging 有权
    用于控制车辆电池充电的方法和装置

    公开(公告)号:US07834582B2

    公开(公告)日:2010-11-16

    申请号:US11432456

    申请日:2006-05-11

    IPC分类号: H01M10/44 H01M10/46

    摘要: An electrical charging strategy and system for a high voltage electrical energy storage system able to supply electrical energy to a hybrid vehicle is disclosed. The system charges the electrical energy storage system so state-of-charge at the end of a trip is substantially unchanged. The strategy and system employs opportunity charging to achieve maximum energy efficiency of the hybrid system, thus minimizing fuel consumption and maximizing fuel economy. The charging system operation is controlled, based upon: the state-of-charge of the electrical energy storage system, and, the operating efficiency of the internal combustion engine. Battery life is likewise extended through use of this strategy.

    摘要翻译: 公开了一种能够向混合动力汽车提供电能的高压电能存储系统的充电策略和系统。 系统对电能存储系统进行充电,因此在行程结束时的充电状态基本不变。 该策略和系统采用机会充电来实现混合动力系统的最大能源效率,从而最大限度地减少燃料消耗并最大限度地提高燃油经济性。 基于以下方式控制充电系统操作:电能储存系统的充电状态以及内燃机的运行效率。 电池寿命也通过使用这一策略得到延长。