Method and apparatus for controlling a multi-mode powertrain system
    1.
    发明授权
    Method and apparatus for controlling a multi-mode powertrain system 有权
    用于控制多模动力系统的方法和装置

    公开(公告)号:US08813885B2

    公开(公告)日:2014-08-26

    申请号:US13568086

    申请日:2012-08-06

    IPC分类号: B60W10/00 B60W20/00

    摘要: A method for operating a powertrain system to transfer torque among an engine, torque machines, and a driveline includes identifying a speed/torque search window responsive to a parameter affecting engine power output and the output torque request. A search is executed to determine a preferred engine operating point for operating the powertrain system in response to an output torque request. The search includes determining a candidate power cost associated with operating the powertrain system at the candidate engine torque and candidate engine speed for each of a plurality of candidate engine speeds and candidate engine torques within the speed/torque search window. A preferred engine operating point is determined as the candidate engine speed and the candidate engine torque associated with a minimum of the candidate power costs. Engine operation is controlled responsive to the preferred engine speed.

    摘要翻译: 用于操作动力系统以在发动机,扭矩机和传动系之间传递扭矩的方法包括响应于影响发动机功率输出和输出转矩请求的参数识别速度/扭矩搜索窗口。 执行搜索以确定用于响应于输出扭矩请求来操作动力系统的优选发动机工作点。 搜索包括确定在速度/转矩搜索窗口内的多个候选发动机速度和候选发动机转矩中的每一个的候选发动机扭矩和候选发动机转速下操作动力系统相关联的候选动力成本。 优选的发动机工作点被确定为与候选动力成本的最小值相关联的候选发动机转速和候选发动机转矩。 发动机操作是根据优选的发动机转速来控制的。

    METHOD AND APPARATUS FOR SELECTING AN ENGINE OPERATING STATE FOR A MULTI-MODE POWERTRAIN SYSTEM
    2.
    发明申请
    METHOD AND APPARATUS FOR SELECTING AN ENGINE OPERATING STATE FOR A MULTI-MODE POWERTRAIN SYSTEM 有权
    用于选择多模动力系统的发动机操作状态的方法和装置

    公开(公告)号:US20140039770A1

    公开(公告)日:2014-02-06

    申请号:US13568083

    申请日:2012-08-06

    IPC分类号: G06G7/70 B60W10/11 B60W10/06

    摘要: A method for operating a powertrain system including a multi-mode transmission configured to transfer torque among an engine, torque machines, and a driveline, includes executing a first search to determine a first engine operating point within an all-cylinder state and a corresponding operating cost for operating the powertrain system in response to an output torque request. A second search is executed to determine a second engine operating point within a cylinder deactivation state and a corresponding operating cost for operating the powertrain system in response to the output torque request. One of the first and second engine operating points is selected as a preferred engine operating point based upon the operating costs and the engine is controlled at the preferred engine operating point in the corresponding one of the all-cylinder state and the cylinder deactivation state.

    摘要翻译: 一种用于操作包括构造成在发动机,扭矩机和传动系之间传递转矩的多模式变速器的动力系统的方法,包括执行第一搜索以确定全汽缸状态内的第一发动机工作点和相应的操作 响应于输出扭矩请求来操作动力系统的成本。 执行第二搜索以确定汽缸停用状态期间的第二发动机工作点以及响应于输出转矩请求来操作动力系统的相应操作成本。 第一和第二发动机工作点中的一个被选择为基于操作成本的优选发动机工作点,并且发动机被控制在所有气缸状态和气缸停用状态的对应的一个中的优选发动机工作点。

    METHOD AND APPARATUS FOR CONTROLLING A MULTI-MODE POWERTRAIN SYSTEM
    3.
    发明申请
    METHOD AND APPARATUS FOR CONTROLLING A MULTI-MODE POWERTRAIN SYSTEM 有权
    用于控制多模动力系统的方法和装置

    公开(公告)号:US20140039738A1

    公开(公告)日:2014-02-06

    申请号:US13568070

    申请日:2012-08-06

    IPC分类号: B60W20/00 B60W10/11 B60W10/06

    摘要: A method for operating a powertrain system includes selecting a plurality of candidate transmission ranges associated with a present powertrain operating point and deselecting candidate transmission ranges not associated with the present powertrain operating point. A high resolution engine speed/torque search is executed for each of the selected candidate transmission ranges. A low resolution engine speed/torque search is executed for each of the deselected candidate transmission ranges. Each search is executed to determine a respective minimum power cost for operating the powertrain system in one of the candidate transmission ranges in response to an output torque request and output speed. A preferred transmission range is determined from the candidate transmission ranges. A preferred engine operating point is determined corresponding to the minimum power cost for the preferred transmission range. The powertrain system is controlled in the preferred transmission range with the engine operating at the preferred engine operating point.

    摘要翻译: 一种用于操作动力系统的方法包括选择与当前动力系运行点相关联的多个候选传输范围,以及取消不与当前动力系运行点相关联的候选传输范围。 对于所选择的候选传输范围中的每一个执行高分辨率的发动机转速/转矩搜索。 对于每个未选择的候选传输范围执行低分辨率的发动机转速/转矩搜索。 执行每个搜索以确定响应于输出转矩请求和输出速度在候选传输范围之一中操作动力系统的相应的最小功率成本。 从候选传输范围确定优选传输范围。 根据优选传输范围的最小功率成本确定优选的发动机工作点。 动力系统在优选的传动范围内被控制,发动机在优选的发动机工作点运行。