Method and apparatus to determine a preferred output torque for operating a hybrid transmission in a fixed gear operating range state
    8.
    发明授权
    Method and apparatus to determine a preferred output torque for operating a hybrid transmission in a fixed gear operating range state 有权
    确定在固定齿轮工作范围状态下操作混合变速器的优选输出转矩的方法和装置

    公开(公告)号:US08135519B2

    公开(公告)日:2012-03-13

    申请号:US12255530

    申请日:2008-10-21

    IPC分类号: G06F19/00

    摘要: A hybrid transmission includes a torque machine and an energy storage device connected thereto. The hybrid transmission is operative to transfer power between an input member and an output member and the torque machines in a fixed gear operating range state. A method for controlling the hybrid transmission includes determining a preferred output torque, determining a relationship between power from the energy storage device and an output torque of the transmission, determining power constraints from the energy storage device, determining motor torque constraints for the torque machine, determining linear torque constraints to the output torque based upon the motor torque constraints for the torque machine, determining quadratic output torque constraints based upon the power constraints from the energy storage device and the relationship between the power from the energy storage device and the output torque of the transmission device, and determining an output torque to the output member responsive to the preferred output torque and achievable based upon the linear output torque constraints and the quadratic output torque constraints.

    摘要翻译: 混合变速器包括扭矩机和与其连接的能量存储装置。 混合变速器可操作以在固定齿轮工作范围状态下在输入构件和输出构件与扭矩机之间传递动力。 控制混合变速器的方法包括确定优选的输出转矩,确定来自储能装置的功率与变速器的输出扭矩之间的关系,确定来自能量存储装置的功率约束,确定扭矩机的电机转矩限制, 基于所述扭矩机的电动机扭矩约束确定对所述输出转矩的线性扭矩约束,基于来自所述能量存储装置的功率约束和所述能量存储装置的功率与所述能量存储装置的功率之间的关系确定二次输出转矩约束 传输装置,并且响应于优选的输出扭矩确定到输出构件的输出扭矩,并且可以基于线性输出扭矩约束和二次输出扭矩约束来实现。