Rear door action
The main role of the car rear door includes the following aspects :
Convenient for passengers to get on and off : The design of the rear door of the car makes it easy for passengers to get in and out of the vehicle, especially for rear passengers, the operation of opening and closing the rear door is relatively simple, convenient for passengers to get on and off .
auxiliary reversing and parking : when reversing or side parking, the rear door can play an auxiliary role to help the driver observe the situation behind the vehicle and ensure a safe parking .
increase the use of car space : the existence of the back door makes the space layout of the car more reasonable, especially in the need to load large items, the design of the back door can provide a larger opening, convenient loading and unloading .
emergency escape : in special circumstances, such as when other doors of the vehicle cannot be opened, the back door can be used as an emergency escape channel to ensure the safe evacuation of the vehicle .
The advantages and disadvantages of different types of car rear doors and their application scenarios :
clamshell type rear door : the advantage is that the opening is large, suitable for loading large items scene; The disadvantage is that it needs a larger opening force, but it can be used as a roof to block the rain in rainy days .
side opening rear door : the advantage is that it does not need to be vigorously opened, suitable for the scene with limited space; The disadvantage is easy to be affected by the wind, rainy days may enter the water .
Rear door design differences in different car models and their impact on user experience :
[SUVs and minivans : usually have side opening or clamshell rear doors for easy loading and unloading, suitable for commercial or home use .]
car : The rear door design pays more attention to beauty and convenience, usually side opening or push-pull, suitable for urban driving and daily travel .
The common causes and solutions of car rear door failure include the following:
Child lock enabled : Most cars have child locks on the rear doors. The knob is usually on the side of the door. If it is in the locked position, the car cannot open the door. Simply turn the knob to unlock position .
central control lock problem : when the speed reaches a certain value, the central control lock will automatically lock, resulting in the car can not open the door. The driver can close the center lock or the passenger can open the mechanical lock pin .
short circuit of the alarm alarm : Short circuit of the alarm alarm will affect the normal opening of the door. You need to check the circuit and repair .
door lock mechanism failure : door lock mechanism damage or lock core failure will cause the door can not be opened. The lock core needs to be inspected and repaired or replaced .
Door internal wiring failure : Door internal wiring failure may be due to a broken or short circuit in the control harness connecting the door to the body of the car. Lines need to be inspected and repaired .
Vehicle control module fault : The fault of the vehicle control module affects the normal door control. The controller module needs to be checked and repaired.
door stuck : The gap between the door and the door frame is blocked by debris or the door sealing strip is aging and hardening, which will cause the door to fail to open. Remove debris or replace the sealing rubber strip .
Other mechanical failures : such as door hinge or hinge deformation, door handle damage, etc., will also cause the door to fail to open normally. Related parts need to be inspected and repaired .
Preventive measures :
Check the working status of child locks, central locks and immobilizers regularly.
Maintain the internal wiring of the door and the vehicle control module in normal working condition.
Regularly inspect and replace aging sealing strips and other related components.
Avoid sudden acceleration or deceleration during vehicle driving to reduce the misoperation of the central control lock.
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