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    • 6. 发明公开
    • VEHICLE TRAVEL ASSISTANCE DEVICE
    • 车辆行驶辅助装置
    • EP2862765A1
    • 2015-04-22
    • EP13804723.8
    • 2013-06-13
    • Advics Co., Ltd.
    • OHMORI, YosukeSHIOTA, MasakiTAKEDA, MasayoshiMORI, Yukio
    • B60W30/09B60R21/00B60T7/12B60W30/16G08G1/16
    • B60W30/14B60T7/22B60T2201/022B60W30/09B60W30/143B60W30/16B60W2520/00B60W2550/10B60W2720/106G08G1/16
    • A collision avoidance ECU sets a model deceleration change amount (Jmin) to smaller value in a state in which it is difficult to reduce the speed of a host vehicle than in a state in which it is easy to reduce the speed of the host vehicle (step S17). The collision avoidance ECU calculates a first target value (AfR1) by multiplying the model deceleration change amount (Jmin) by the elapsed time (ΔTst) (step S19). The collision avoidance ECU obtains a subtraction value by subtracting the current reference relative deceleration (Asub) from the first target value (AfR1). Then, the collision avoidance ECU determines a target relative deceleration (Af) to be a greater value when the subtraction value is large (step S25) than when the subtraction value is small, and carries out brake control so that the reference relative deceleration (Asub) approaches the target relative deceleration (Af) (step S26).
    • 在容易降低本车辆的速度的状态下,在难以降低本车辆的速度的状态下,避免碰撞ECU将模型减速度变化量(Jmin)设定为较小的值 步骤S17)。 碰撞避免ECU通过将模型减速度变化量(Jmin)乘以经过时间(ΔTst)来计算第一目标值(AfR1)(步骤S19)。 碰撞避免ECU通过从第一目标值(AfR1)中减去当前参考相对减速度(Asub)来获得减法值。 然后,当减法值较大时(步骤S25),碰撞避免ECU将目标相对减速度(Af)确定为较大值,并且执行制动控制以使得参考相对减速度(Asub) )接近目标相对减速度(Δf)(步骤S26)。