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    • 8. 发明申请
    • ADAPTIVE TRACTION CONTROL SYSTEM
    • 自适应跟踪控制系统
    • US20090150037A1
    • 2009-06-11
    • US12388804
    • 2009-02-19
    • Hongtei Eric TsengMichael FodorDavor Hrovat
    • Hongtei Eric TsengMichael FodorDavor Hrovat
    • G06F17/00
    • B60K28/16B60W10/06B60W10/184B60W30/18172B60W2520/263B60W2520/28Y02T10/7258
    • A method of controlling a traction control system (30) includes continuously adapting a steady state driven wheel speed to reference wheel speed ratio, so that said traction control system can avoid unnecessary actuations (e.g., demanding torque reduction). The continuous adaptation methodology provides traction control robustness to vehicles equipped with a spare tire, or a different final drive such as in the use of aftermarket parts. The method includes a dual rate adaptation that allows both fast adaptation and fine tuning capabilities of the ratio. The method includes comparing the instant driven wheel speed to reference wheel speed ratio to the filtered driven wheel speed to reference wheel speed ratio, to obtain a ratio difference. When the difference is above a threshold, the first filter constant is selected and the first constant is applied to an adaptation filter, resulting in a first filtered and adapted ratio. The traction control system is controlled with the adapted ratio. When the difference is below the threshold, the second filter constant is selected and the selected constant is applied to the adaptation filter, resulting in the second filtered and adapted ratio. The traction control system is controlled with the adapted ratio.
    • 控制牵引力控制系统(30)的方法包括使稳态驱动轮速度连续地适应参考轮速比,使得所述牵引力控制系统可以避免不必要的动作(例如,要求转矩降低)。 持续适应方法为配备备用轮胎的车辆或不同的最终驱动装置(如使用售后部件)提供牵引力控制的鲁棒性。 该方法包括双速率适配,其允许比率的快速适应和微调能力。 该方法包括将即时驱动轮速度与参考轮速比与过滤后的从动轮速度相对于参考轮速比进行比较,以获得比率差。 当差值高于阈值时,选择第一滤波常数,将第一常数应用于自适应滤波器,得到第一滤波和适应比。 牵引力控制系统以适应的比例进行控制。 当差值低于阈值时,选择第二滤波常数,并将所选常数应用于自适应滤波器,得到第二滤波和适应比。 牵引力控制系统以适应的比例进行控制。
    • 9. 发明授权
    • Traction control system and method for a vehicle
    • 牵引力控制系统和车辆方法
    • US07499787B2
    • 2009-03-03
    • US10961452
    • 2004-10-07
    • Davor HrovatMichael FodorMitch McConnell
    • Davor HrovatMichael FodorMitch McConnell
    • B60T7/12G05D1/00
    • F02D11/105B60K28/16B60W2540/12B60W2550/148B60W2710/0605F02D41/021F02D2250/18Y10T477/675Y10T477/679Y10T477/688
    • In one example, A method for controlling a powertrain of a vehicle with wheels, the vehicle having a pedal actuated by a driver, is described. The method may include generating powertrain torque transmitted to the wheels in a first relation to actuation of the pedal by the driver during a first condition where said transmitted torque causes said wheels to slip relative to a surface; overriding said driver actuated powertrain torque to control said slip; and during a second condition after said first condition where said vehicle is moving less than a threshold, generating powertrain torque transmitted to the wheels in a second relation to actuation of the pedal by the driver, where for a given pedal position, less powertrain torque is transmitted with said second relation compared to said first relation.
    • 在一个示例中,描述了一种用于控制具有车轮的车辆的动力系的方法,该车辆具有由驾驶员驱动的踏板。 所述方法可以包括:在所述传递的扭矩使所述轮相对于表面滑动的第一状态期间,以第一关系产生传递到所述车轮的动力系转矩,所述动力系转矩与所述踏板的致动一致; 超越所述驾驶员致动的动力系扭矩以控制所述滑移; 并且在所述第一状态之后的所述第一状态下,在所述车辆移动小于阈值的第二状态下,产生传递到所述车轮的动力系转矩,所述转矩与所述驾驶员对所述踏板的致动有第二关系,其中对于给定的踏板位置,较小的动力系转矩 与所述第一关系相比,以所述第二关系传送。