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    Method for automatic traction control in a hybrid electric vehicle
    74.
    发明授权
    Method for automatic traction control in a hybrid electric vehicle 有权
    混合动力汽车自动牵引力控制方法

    公开(公告)号：US07222014B2

    公开(公告)日：2007-05-22

    申请号：US10846016

    申请日：2004-05-14

    申请人： Xuefeng T. Tao ,  Todd M. Steinmetz ,  Tung-Ming Hsieh ,  William R. Cawthorne

    发明人： Xuefeng T. Tao ,  Todd M. Steinmetz ,  Tung-Ming Hsieh ,  William R. Cawthorne

    IPC分类号： G06F7/00

    CPC分类号： B60W20/00 ,  B60K1/02 ,  B60K6/40 ,  B60K6/445 ,  B60W10/06 ,  B60W10/08 ,  B60W30/18172 ,  B60W2720/30 ,  F16H3/728 ,  F16H2037/0866 ,  F16H2037/102 ,  F16H2037/104 ,  F16H2037/106 ,  F16H2200/201 ,  F16H2200/2035 ,  Y02T10/6239 ,  Y02T10/6286 ,  Y02T10/7258

    摘要： A method for providing traction control in vehicle powertrain systems is particularly adapted for traction control in a powertrain system of a hybrid electric vehicle comprising an internal combustion engine, an electric machine and a transmission that is operatively coupled to the electric machine and the engine and adapted to provide a transmission torque output in response to a transmission torque input received as a torque output from either or both of the engine and the electric machine. The method is adapted to utilize conventional traction control and engine control hardware, software and communication standards to implement traction control. In one embodiment of the invention, a conventional traction controller is used to detect a wheel spin condition and provide a plurality of first output torque command messages in response thereto. The plurality of first output torque command messages are used to obtain a torque reduction which is applied to a reference output torque to obtain a corresponding plurality of traction control output torque commands for the powertrain system during the wheel spin condition. A rate limit may also be applied to control the rate of change between successive ones of the traction control output torque commands in order to reduce the possibility of extension of the wheel spin condition, or recurrence of another wheel spin condition. Each traction control output torque command may be used to determine an associated traction control engine torque output command and traction control electric machine torque output command.

    摘要翻译： 用于在车辆动力系统中提供牵引力控制的方法特别适用于混合动力车辆的动力系统中的牵引力控制，所述混合动力车辆包括内燃机，电机和可操作地耦合到电机和发动机的变速器， 以响应于作为从发动机和电机中的一个或两者输出的扭矩接收的传动转矩输入来提供传动转矩输出。 该方法适用于利用传统的牵引力控制和发动机控制硬件，软件和通信标准来实现牵引力控制。 在本发明的一个实施例中，传统的牵引控制器用于检测车轮旋转状态，并响应于此提供多个第一输出转矩指令消息。 多个第一输出转矩指令消息用于获得施加到参考输出转矩的转矩降低，以在车轮旋转状态期间获得用于动力系统的相应的多个牵引控制输出转矩指令。 也可以应用速率限制来控制牵引控制输出转矩指令中连续的转矩指令之间的变化率，以便减少车轮旋转状态的延长或另一个车轮旋转状态的再现。 每个牵引力控制输出转矩指令可用于确定相关的牵引力控制发动机转矩输出指令和牵引力控制电机转矩输出指令。