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    • 2. 发明公开
    • DEVICE FOR CONTROLLING TORQUE DISTRIBUTION TO LEFT AND RIGHT WHEELS ON A VEHICLE
    • 一种用于控制扭矩分配在左,右侧车轮的车辆
    • EP2591933A1
    • 2013-05-15
    • EP11803598.9
    • 2011-07-05
    • Nissan Motor Co., Ltd
    • TSUSHIMA Yohei
    • B60K17/344
    • G05D17/00B60K17/344B60K23/04B60K2023/043B60W2720/30F16H48/19F16H2048/205
    • When a rear wheel total drive force TcLR is smaller than a rear wheel drive force difference ΔTcLR and the rear wheel drive force difference ΔTcLR cannot be accomplished by dividing the rear wheel total drive force TcLR between the left and right rear wheels, an inside wheel target drive force TcIN is not set to 0 and an outside wheel target drive force TcOUT is not set to ΔTcLR. Instead, the inside wheel target drive force TcIN is set to a default drive force TcMIN that is a minimum value required to prevent a three-wheel drive state from occurring, and the outside wheel target drive force TcOUT is set a value equal to the sum of the default drive force TcMIN and the rear wheel drive force difference ΔTcLR, which is a value with which the rear wheel drive force difference ΔTcLR can be achieved under the condition of the inside wheel target drive force TcIN being equal to the default drive force TcMIN. As a result, even if the condition TcLR
    • 当后轮合计驱动力TCLR大于后轮驱动力差“TCLR及后轮驱动力差”较小TCLR无法通过将左,右后轮之间的后轮合计驱动力TCLR,到内完成 轮targetDrive力TCIN没有被设置为0,并且向外部轮驱动力目标TCOUT没有被设置为“TCLR。 相反,内侧车轮的目标驱动力TCIN被设定为默认驱动力TCmin做是为了防止出现三个轮驱动状态所需的最小值,和外侧车轮的目标驱动力TCOUT被设置为等于所述总和的值 默认驱动力TCmin及后轮驱动力差“TCLR,所有这些是与该后轮驱动力差的值” TCLR可以内轮的目标驱动力的条件下才能实现TCIN等于所述默认的驱动器的 TCmin力。 其结果是,即使条件TCLR <“TCLR存在时,车辆不会进入三轮驱动状态和转弯稳定性的提高。
    • 4. 发明公开
    • DEVICE FOR CONTROLLING TORQUE DISTRIBUTION TO LEFT AND RIGHT WHEELS ON A VEHICLE
    • 一种用于控制扭矩分配在左,右侧车轮的车辆
    • EP2591934A1
    • 2013-05-15
    • EP11803599.7
    • 2011-07-05
    • Nissan Motor Co., Ltd
    • TSUSHIMA Yohei
    • B60K17/344
    • B60W10/119B60K17/344B60K23/0808B60K2023/043B60W10/16B60W30/045B60W2720/28B60W2720/403B60W2720/406F16H48/19F16H2048/205
    • A rear wheel drive force difference setting gain Gain is multiplied by a basic left-right rear wheel drive force difference steady-state control computation value for achieving a vehicle turning behavior steadily requested by a driver in order to calculate a final left-right rear wheel drive force difference steady-state control amount. The final left-right rear wheel drive force difference steady-state control amount is added to a left-right rear wheel drive force difference transient control amount to obtain left-right rear wheel rear wheel drive force difference. The left-right rear wheel drive force difference is multiplied by feedback control coefficient to obtain a final rear wheel drive force difference ΔTcLR. During an initial stage of turning in which a lateral acceleration Gy is smaller than a turn initial stage determining value Gys, the rear wheel drive force difference setting gain Gain is set to A, which is larger than 1 and increases as the lateral acceleration Gy decreases. As a result, the final rear wheel drive force difference ΔTcLR is increased during the initial stage of turning (lateral acceleration Gy
    • 后轮驱动力差设定增益GAIN-乘以一个基本左右后轮驱动力差的稳态控制运算值为实现,以计算最终的左 - 右后轮稳步由驾驶员要求的车辆转向行为 驱动力差的稳态控制量。 最终的左右后轮驱动力差的稳态控制量被添加到左右后轮驱动力差过渡控制量以获得左右后轮的后轮驱动力差。 左右后轮驱动力差,乘以反馈控制系数,以获得最终的后轮驱动力差“TCLR。 期间在哪一个转弯的初始阶段的横向加速度Gy小于转弯初期确定性采矿GYS,后轮驱动力差设定增益的增益设定为小的值,这一切都大于1并且随着横向加速度Gy跌幅 , 其结果是,最终的后轮驱动力差“是TCLR期间开启(横向加速度Gy