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    • 2. 发明授权
    • Harmonic torque ripple reduction at low motor speeds
    • 低电机转速下的谐波转矩脉动降低
    • US07768220B2
    • 2010-08-03
    • US12108868
    • 2008-04-24
    • Steven E. SchulzGoro TamaiSilva Hiti
    • Steven E. SchulzGoro TamaiSilva Hiti
    • H02P6/10
    • H02P29/50
    • Methods and systems are provided for reducing torque ripple in an electric motor. A method comprises receiving a torque command and determining a cancellation current command based on the torque command. The method further comprises generating a harmonic cancellation command based on the cancellation current command, wherein the harmonic cancellation command compensates for a phase shift and an attenuation introduced by a current regulated control module coupled to an inverter coupled to the electric motor. The method further comprises providing the harmonic cancellation command to the current regulated control module, wherein the current regulated control module is configured to control the inverter in response to the harmonic cancellation command and the torque command.
    • 提供了减少电动机转矩波动的方法和系统。 一种方法包括:接收转矩指令并根据转矩指令确定取消电流指令。 该方法还包括基于消除电流指令产生谐波消除命令,其中谐波消除指令补偿由耦合到与电动机耦合的逆变器的电流调节控制模块引入的相移和衰减。 该方法还包括向当前调节控制模块提供谐波消除命令,其中当前调节控制模块被配置为响应于谐波消除指令和转矩指令来控制逆变器。
    • 3. 发明申请
    • HARMONIC TORQUE RIPPLE REDUCTION AT LOW MOTOR SPEEDS
    • 低电机速度下的谐波扭矩纹波减少
    • US20090267555A1
    • 2009-10-29
    • US12108868
    • 2008-04-24
    • Steven E. SchulzGoro TamaiSilva Hiti
    • Steven E. SchulzGoro TamaiSilva Hiti
    • H02P6/10
    • H02P29/50
    • Methods and systems are provided for reducing torque ripple in an electric motor. A method comprises receiving a torque command and determining a cancellation current command based on the torque command. The method further comprises generating a harmonic cancellation command based on the cancellation current command, wherein the harmonic cancellation command compensates for a phase shift and an attenuation introduced by a current regulated control module coupled to an inverter coupled to the electric motor. The method further comprises providing the harmonic cancellation command to the current regulated control module, wherein the current regulated control module is configured to control the inverter in response to the harmonic cancellation command and the torque command.
    • 提供了减少电动机转矩波动的方法和系统。 一种方法包括:接收转矩指令并根据转矩指令确定取消电流指令。 该方法还包括基于消除电流指令产生谐波消除命令,其中谐波消除指令补偿由耦合到与电动机耦合的逆变器的电流调节控制模块引入的相移和衰减。 该方法还包括向当前调节控制模块提供谐波消除命令,其中当前调节控制模块被配置为响应于谐波消除命令和扭矩命令来控制逆变器。
    • 6. 发明授权
    • Low speed synchronous motor drive operation
    • 低速同步电机驱动运行
    • US07880416B2
    • 2011-02-01
    • US11856504
    • 2007-09-17
    • Steven E. SchulzGoro TamaiScott Thompson
    • Steven E. SchulzGoro TamaiScott Thompson
    • H02P6/08
    • H02P6/08H02P23/03H02P2209/07
    • 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.
    • 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。
    • 8. 发明申请
    • MULTI-PHASE ENGINE STOP POSITION CONTROL
    • 多相发动机停止位置控制
    • US20110253099A1
    • 2011-10-20
    • US12759898
    • 2010-04-14
    • Jun HanLan WangGoro Tamai
    • Jun HanLan WangGoro Tamai
    • F02D41/00
    • F02N11/0818F02D41/0097F02D41/042F02D41/065F02D2041/0095F02D2200/101F02N11/0814F02N19/005F02N2019/008
    • A method is provided for controlling engine stop position in a vehicle having an engine with auto stop/auto start functionality. The method includes automatically ramping down engine speed upon initiation of an auto stop event, executing closed-loop speed control of the engine when the engine speed begins to ramp down, and for as long as the engine speed remains above a threshold engine speed while ramping down the engine speed; executing closed-loop position control of the engine while ramping down the engine speed once the engine speed is less than the threshold engine speed and greater than zero; and stopping the crankshaft to within a calibrated range of a targeted engine stop position. A controller is also provided that includes a hardware module and an algorithm adapted for executing the foregoing method, and a vehicle is provided having an engine with auto stop/start functionality and the controller noted above.
    • 提供一种用于控制具有自动停止/自动启动功能的发动机的车辆中的发动机停止位置的方法。 该方法包括在发动自动停止事件时自动降低发动机转速,当发动机转速开始下降时执行发动机的闭环速度控制,并且只要发动机转速保持高于发动机转速的阈值,同时斜坡 降低发动机转速; 一旦发动机转速小于发动机转速的阈值并大于零,则执行发动机的闭环位置控制,同时降低发动机转速; 并将曲轴停止在目标发动机停止位置的校准范围内。 还提供了一种包括硬件模块和适于执行上述方法的算法的控制器,并且提供了一种具有自动停止/起动功能的发动机和上述控制器的车辆。
    • 9. 发明授权
    • Multi-phase engine stop position control
    • 多相发动机停止位置控制
    • US08770173B2
    • 2014-07-08
    • US12759898
    • 2010-04-14
    • Jun HanLan WangGoro Tamai
    • Jun HanLan WangGoro Tamai
    • F02D41/00F02N11/08F02N19/00F02D41/04
    • F02N11/0818F02D41/0097F02D41/042F02D41/065F02D2041/0095F02D2200/101F02N11/0814F02N19/005F02N2019/008
    • A method is provided for controlling engine stop position in a vehicle having an engine with auto stop/auto start functionality. The method includes automatically ramping down engine speed upon initiation of an auto stop event, executing closed-loop speed control of the engine when the engine speed begins to ramp down, and for as long as the engine speed remains above a threshold engine speed while ramping down the engine speed; executing closed-loop position control of the engine while ramping down the engine speed once the engine speed is less than the threshold engine speed and greater than zero; and stopping the crankshaft to within a calibrated range of a targeted engine stop position. A controller is also provided that includes a hardware module and an algorithm adapted for executing the foregoing method, and a vehicle is provided having an engine with auto stop/start functionality and the controller noted above.
    • 提供一种用于控制具有自动停止/自动启动功能的发动机的车辆中的发动机停止位置的方法。 该方法包括在发动自动停止事件时自动降低发动机转速,当发动机转速开始下降时执行发动机的闭环速度控制,并且只要发动机转速保持高于发动机转速的阈值,同时斜坡 降低发动机转速; 一旦发动机转速小于发动机转速的阈值并大于零,则执行发动机的闭环位置控制,同时降低发动机转速; 并将曲轴停止在目标发动机停止位置的校准范围内。 还提供了一种包括硬件模块和适于执行上述方法的算法的控制器,并且提供了一种具有自动停止/起动功能的发动机和上述控制器的车辆。