Rear door action
The main role of the car rear door includes the following aspects :
Emergency exit : The rear door of the vehicle is located above the rear of the vehicle as an emergency exit. In special circumstances, such as the four doors of the vehicle cannot be opened and the occupants are trapped, they can escape through the emergency opening device at the back door to ensure safe evacuation .
convenient baggage loading : The rear door is designed so that passengers can easily enter and exit the vehicle, especially if there is more room in the rear of the vehicle, the rear door provides larger openings for loading and unloading luggage .
Intelligent operation function : The rear door of modern automobile is usually equipped with intelligent operation functions, such as key operation, intelligent key assistance and so on. For example, the rear door can be unlocked and opened remotely with the smart key, or the rear door can be opened by directly pressing the rear door open button and lifting up at the same time when the vehicle is unlocked .
safety design : Some models of the rear door is also equipped with anti-clip anti-collision function, sound and light alarm function and emergency lock function. These functions can quickly sense when obstacles are encountered and take appropriate action to protect children and vehicles .
The rear door of a car is often called a trunk door, luggage door, or tailgate. It is located in the rear of the car and is mainly used for storing luggage and other items .
Type and design
The type and design of car rear doors vary by model and purpose:
cars : usually designed with ordinary rear doors to facilitate the entry and exit of passengers and luggage.
commercial vehicle : often adopt side sliding door or hatchback door design, convenient for passengers to enter and exit.
truck : usually adopts double fan opening and closing design, easy to load and unload goods.
special vehicle : such as engineering vehicles, fire trucks, etc., according to the special needs of the design of different kinds of doors, such as side open, back open, .
Historical background and technological development
The design of car rear doors has evolved with the development of the automotive industry. Early car rear doors are mostly simple rear door design, with the development of the automotive industry, commercial vehicles and trucks began to adopt more convenient passenger access to the side slide door and hatchback door design. Special vehicles have different types of doors designed according to their special needs to meet specific use scenarios .
The common causes and solutions of car rear door failure include the following:
child lock enabled : the rear door of most cars is equipped with a child lock, the knob is usually on the side of the door, the lock position, from the car can not open the door. Simply turn the switch to the unlocking position .
central control lock : most models speed of 15km/h or more will automatically enable the central control lock, at this time the car can not open the door. The center lock needs to be closed or the passenger pulls the mechanical lock latch .
door lock mechanism failure : long-term use or external impact may cause damage to the lock core. Check the door lock mechanism and replace damaged parts if necessary.
door stuck : The gap between the door and the door frame is blocked by debris, or the door seal aging and deformation will affect the opening and closing of the door. Remove debris or replace the sealing strip to resolve .
Door handle malfunction : Damaged or stuck door handles can also prevent the door from being opened. The handle should be inspected and repaired or replaced .
Short circuit of the alarm guard : Short circuit of the alarm guard may affect the normal opening of the car door. Check the circuit and rectify the short circuit .
Low battery level : Low battery level may cause the door to not work properly. Check the battery level and charge it .
Vehicle control module fault : affects the normal control of the door. Check and repair the vehicle control module .
Preventive measures :
Regularly check the car door lock mechanism, seals and handles and other components to ensure that they work properly.
Avoid placing obstacles around the vehicle and keep the doors open smoothly.
Check the battery level regularly to ensure that the battery is in good condition.
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