Analysis On The Technology Of Electric Tailgate

Analysis On The Technology Of Electric Tailgate

1. Background
While People are requiring the car with the fuction of fast and convenient, safe, reliable and easy to operate and comfortable, High performance, high reliability, practical features rising are demand, especially with the traditional body accessories corresponding to the new exterior trim products, by automobile manufacturers and users welcomed the formation of car accessories market with great development potential.

The rear trunk of a car is a component that is frequently used, and a convenient and safe operation method is increasingly required. Especially when the up and down slopes are relatively large, the gas spring cannot ideally balance the weight of the door, which often affects the human body and The item causes injury. In addition, when facing a bulky tailgate, it is difficult for people with short or delicate bodies to open and close the door. Ordinary car luggage compartment doors, such compartment doors need to be opened manually, which is not very convenient. The intelligent induction type automobile electric tailgate mainly adopts modern electronic technology to realize the induction type remote control operation of the automobile tailgate. It can automatically and reliably open or close the rear luggage compartment according to the vehicle condition and the electronic key signal. It is a new technology product.

2. Concept
The electric tailgate of a car, also called power tailgate, means that the trunk of the car can be opened or closed normally by electric or remote control. When you need to open the trunk, you only need to press the button in the car or the remote control key. After receiving the instruction, the trunk can automatically open; if you need to close the trunk, press the close button in the trunk or inside the car. The close button of the remote control key, or the remote control key, the trunk can be automatically closed.

3. Technical status
The automobile electric tailgate system includes the tailgate body, the driving mechanism of the electric tailgate (the driving source mainly composed of the motor, the electromagnetic clutch, the reducer and the electric support rod with wire) and the electric control device .The electronic control unit of the lock (ECU and wireless sensors, such as Bluetooth/infrared light). In view of the differences in the characteristics and specifications of the luggage compartment of different models, a type of "flexible" strut is designed to achieve freedom of movement and adjustable length, and the connection with the tailgate body is reasonable, occupies little space in the trunk, and has a simple overall structure. And it has the advantages of low noise and smooth movement during door opening and closing. Secondly, the electrical control device is controlled by a single-chip microcomputer to form an electric tailgate control ECU, with corresponding signal ports, which can be connected to the tailgate lock signal of the car ECU and the remote control signal of the electronic key, and establish reasonable logic processing rules according to the safety requirements. , Drive the opening and closing operations of the electric tailgate. For example, when the car's electronic key shakes within a close range of the tail box lock, the tailgate will automatically open, and when the electronic key leaves the car, the electric tailgate can automatically close and lock.

4. The key core technology
Through the design of the entire electric tailgate system, the electric tailgate should have the characteristics of simple structure, easy installation, strong versatility, low power consumption, strong anti-interference ability, etc., to ensure that the opening and closing of the electric tailgate is convenient, flexible and safe. High performance. There are mainly the following two key technologies:
(1) Inductive fully automatic tailgate lock technology-by receiving electronic key signals or RFID electronic tag sensors, using a series of decoding and encryption technology to activate or close the tailgate electronic lock, and The control mechanism that drives the electric tailgate opens and closes the trunk lid;

(2) The intelligent drive technology of the electric tailgate of the automobile-adopts the integrated chip of automobile electronic control (ECU) to receive and process the switch signal of the electric tailgate (including the remote control signal of the electronic key) , Mechanical lock signal and RFID induction signal, etc.), combined with the logical judgment of the operating condition data of the vehicle, start the tailgate motor and drive mechanism to open and close the trunk lid.

5. Functional technology
(1) Achieve manual and automatic integrated opening. The driver can open and close the tailgate by pressing the opening key of the tailgate of the vehicle, the remote control car key, or using the hand or any object in the corresponding sensing area of ​​the tailgate to perform sensing operations. For example, when drivers and passengers need to open or close the tailgate due to holding too many objects, they can easily and quickly open or close the tailgate of the car for access to items through the induction operation of the remote control car key.

(2) With intelligent anti-pinch function. When the tailgate is automatically opened and closed, obstacles can be detected by sensors. If the electric tailgate encounters an obstacle during the opening or closing process, the tailgate control system will issue a command to move the tailgate in the opposite direction, thereby effectively preventing Pinching children or damaging the vehicle.

(3) Emergency locking function. When the tailgate movement needs to be terminated in an emergency, the electric tailgate can be used to stop the tailgate quickly at any time through the remote control key or the vehicle tailgate opening key during the opening or closing process. safety.

(4) High memory function. The opening height of the tailgate can be adjusted. The owner can set the final opening height of the tailgate through the manual button according to personal usage habits, just press the tailgate opening key to open it to the predetermined height, and then lightly press the switch Press the key for more than 5 seconds and wait for a beep to complete the setting of the opening height of the tailgate. When the tailgate is opened next time, the height will automatically rise to the set height.

6. Conclusion
Using modern electronic technology to extend the function of the luggage compartment door of the car, so that it can automatically and reliably open or close the rear luggage compartment according to the vehicle condition and the electronic key signal, making the vehicle more comfortable, convenient and safe, and forming a new product that meets the needs of the market The series has increased the added value of traditional trunk opening devices, and promoted the development of automotive exterior parts design and manufacturing technology.