简述电动车窗手动控制和自动控制的两种过程?

2025-03-13 06:57:23
推荐回答(5个)
回答1:

电动车窗的控制有手动控制和自动控制两种功能。所谓手动控制是指按着相应的手动按钮,车窗可以上升或下降,若中途松开按钮,上升或下降的动作即停止。自动控制是指按下自动按钮,松开手后车窗会一直上升至最高或下降至最低。



如图4-60所示为四车门电动车窗的主控制按钮和控制电路。

(1)手动控制玻璃升降

向前按下手动旋钮后,触点A与开关的UP接点相连,触点B处于原来状态,电动机按UP箭头方向通过电流,车窗玻璃上升直至关闭;当将手离开旋钮时,利用开关的自身的回复力回到中立位置,电动机停转。

若将手动旋钮推向车辆后方,触点A保持原位不动,而触点B则与DOWN侧相连,电动机按DOWN箭头所示的方向通过电流,电动机反转,车窗玻璃向下移动,直至下降到底。



电动门窗玻璃升降器电路原理图

(2)自动控制玻璃升降

向前方按下自动旋钮后,触点A与开关的UP接点相连,触点B处于原来状态,电动机按UP箭头方向通过电流,车窗玻璃上升。与此同时,检测电阻R上的电压降低,此电压通过比较器1的一端,它与参考电压Ref.1进行比较。Ref.1的电压值设定为相当于电动机锁止时的电压,通常情况下,比较器1的输出电位为负电位。而比较器2的基准电压Ref.2设定为小于比较器1的输出电位,所以比较器2的输出电压为正电压,晶体管导通,电磁线圈通过较大电流,其路径为:蓄电池“+”→点火开关→UP→触点A→二极管VD1→电磁线圈→三极管→二极管VD4→触点B→电阻R→搭铁。线圈通电后产生较大的电磁吸力,吸引驱动器的开关柱塞,于是将止板和上顶压,越过止板凸缘的滑动销而将按钮锁定。此时,即使将手移开自动旋钮,开关仍会保持原来的状态。

当玻璃上升至终点位置,在电机上锁止电流流过,检测电阻R上的电压降增大,当此电压超过参考电压Ref.1时,比较器1输出低电位,此时,电容C开始充电,当C两端电压上升至超过比较器2的参考电压Ref.2时,比较器则输出低电位,三极管立即截止,电磁线圈中的电流被切断,止板被弹簧通过滑销压下,自动旋钮自动回复到中立位置,触点A搭铁,电动机停转。

在自动上升过程中,若想中途停止,则向反方向扳手动旋钮,然后立刻放松。则触点B将短暂脱离搭铁,使电动机因回路被切断而自动停转。同时,通过电磁线圈的电流已被切断,止板弹簧通过滑销压下,自动旋钮自动回复到中立位置,触点A、B均搭铁,电动机停转。电动车窗自动下降的工作情况下上述情况相反。

回答2:

一键升降:1. 开关按到底,然后松手,车窗自动全开(全关);2. 若只按动,不按到底,按,车窗就升/降,不按车窗就停。 普通:按下去,无论按不按到底,都如一键升降的

回答3:

对于电动车窗来说如果你将手动控制只需要用手轻轻向上搬一下。自动控制怎么需要向上再按一下。

回答4:

我在电脑上自动地后,然后完全就不是电影的,如果电动车的话,自动的可能跟手动的都要好一点

回答5:

周日了,如果整一个怎么了?多谢了,赶紧把自动控制手动控制,咱们的进行解决这个道理的呢

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