Method of smoothing output torque
    4.
    发明授权
    Method of smoothing output torque 有权
    输出转矩平滑的方法

    公开(公告)号:US08346418B2

    公开(公告)日:2013-01-01

    申请号:US12627184

    申请日:2009-11-30

    IPC分类号: B60L9/00

    摘要: A method of output torque smoothing for a hybrid powertrain having an electric machine and a spark ignition engine with a first cylinder and a second cylinder includes commanding a fuel-cut transition, including consecutively initiating and completing deactivation of the first cylinder and initiating and completing deactivation of the second cylinder. The fuel-cut transition is characterized by an absence of retarding spark to the first cylinder and second cylinder. Fuel is supplied to the first cylinder until the first cylinder completes deactivation and to the second cylinder until the second cylinder completes deactivation. The electric machine captures a first torque from the first cylinder by generating electricity until the first cylinder completes deactivation and captures a second torque from the second cylinder by generating electricity until the second cylinder completes deactivation.

    摘要翻译: 具有电机和具有第一气缸和第二气缸的火花点火发动机的混合动力系的输出转矩平滑的方法包括指示燃料切断过渡,包括连续启动并完成第一气缸的停用并且启动和完成停用 的第二个气缸。 燃料切割过渡的特征在于,对第一气缸和第二气缸不存在延迟火花。 燃料被供应到第一气缸直到第一气缸完全停止并且到第二气缸直到第二气缸完成停用。 电机通过产生电力来捕获来自第一气缸的第一扭矩,直到第一气缸完成停用,并且通过产生电力捕获来自第二气缸的第二扭矩,直到第二气缸完成停用。

    MULTI-PHASE ENGINE STOP POSITION CONTROL
    5.
    发明申请
    MULTI-PHASE ENGINE STOP POSITION CONTROL 有权
    多相发动机停止位置控制

    公开(公告)号:US20110253099A1

    公开(公告)日:2011-10-20

    申请号:US12759898

    申请日:2010-04-14

    IPC分类号: F02D41/00

    摘要: 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.

    摘要翻译: 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。

    Multi-phase engine stop position control
    6.
    发明授权
    Multi-phase engine stop position control 有权
    多相发动机停止位置控制

    公开(公告)号:US08770173B2

    公开(公告)日:2014-07-08

    申请号:US12759898

    申请日:2010-04-14

    摘要: 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.

    摘要翻译: 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。

    METHOD OF SMOOTHING OUTPUT TORQUE
    9.
    发明申请
    METHOD OF SMOOTHING OUTPUT TORQUE 有权
    打印输出扭矩的方法

    公开(公告)号:US20110130902A1

    公开(公告)日:2011-06-02

    申请号:US12627184

    申请日:2009-11-30

    IPC分类号: G06F19/00 F02D7/00 F02P5/00

    摘要: A method of output torque smoothing for a hybrid powertrain having an electric machine and a spark ignition engine with a first cylinder and a second cylinder includes commanding a fuel-cut transition, including consecutively initiating and completing deactivation of the first cylinder and initiating and completing deactivation of the second cylinder. The fuel-cut transition is characterized by an absence of retarding spark to the first cylinder and second cylinder. Fuel is supplied to the first cylinder until the first cylinder completes deactivation and to the second cylinder until the second cylinder completes deactivation. The electric machine captures a first torque from the first cylinder by generating electricity until the first cylinder completes deactivation and captures a second torque from the second cylinder by generating electricity until the second cylinder completes deactivation.

    摘要翻译: 具有电机和具有第一气缸和第二气缸的火花点火发动机的混合动力系的输出转矩平滑的方法包括指示燃料切断过渡,包括连续启动并完成第一气缸的停用并且启动和完成停用 的第二个气缸。 燃料切割过渡的特征在于,对第一气缸和第二气缸不存在延迟火花。 燃料被供应到第一气缸直到第一气缸完全停止并且到第二气缸直到第二气缸完成停用。 电机通过产生电力来捕获来自第一气缸的第一扭矩,直到第一气缸完成停用,并且通过产生电力捕获来自第二气缸的第二扭矩,直到第二气缸完成停用。