WO2024037473A1

WO2024037473A1 - Trunk lid controlled by means of wireless network

Info

Publication number: WO2024037473A1
Application number: PCT/CN2023/112725
Authority: WO
Inventors: 王超
Original assignee: 长春捷翼汽车科技股份有限公司
Priority date: 2022-08-13
Filing date: 2023-08-11
Publication date: 2024-02-22
Also published as: CN115416589A

Abstract

Disclosed in the present invention is a trunk lid controlled by means of a wireless network. The trunk lid comprises a main controller arranged in a vehicle body; a trunk lid body; and a sub-controller and at least one electric apparatus, which are arranged in the trunk lid body. The main controller is connected to the sub-controller by means of a wireless network, the sub-controller is connected to the at least one electric apparatus, and the sub-controller feeds back state information of the electric apparatus to the main controller by means of the wireless network. The present invention reduces the usage amount of wiring harnesses in a vehicle, and also avoids a wiring harness connection between a trunk lid and a vehicle body, thereby preventing damage to the wiring harnesses due to frequent bending, and reducing the risks of water leakage and electric leakage of a trunk. Therefore, the safety of a vehicle is improved, the weight of a vehicle body is reduced, and the production cost is reduced.

Description

A trunk lid controlled via wireless network

This application claims priority to the Chinese patent application with application number 202210970718.8 and the invention title "A trunk lid controlled through a wireless network" submitted on August 13, 2022, the entire content of which is incorporated into this application by reference.

Technical field

The present invention relates to the technical field of automotive electrical appliances, and more specifically, to a wirelessly controlled trunk lid.

Background technique

This section is intended to provide background or context for the embodiments of the invention set forth in the claims. The description herein is not admitted to be prior art by inclusion in this section.

The automobile wiring harness is the nervous system of the car. The power supply and signal transmission of almost all electrical components require wiring harnesses. As there are more and more electrical components on the car, the number of loops and branches of the automobile wiring harness is also gradually increasing.

The trunk is a place where items are placed in the car, but there are also many electrical appliances. Many wiring harnesses need to be passed from the dashboard through the body and through the sheet metal holes of the body and trunk before they can be connected to the electrical appliances in the trunk, especially the trunk lid. For the electrical appliances in the car, the wiring harness also needs to pass through the rubber hose to connect to the trunk lid. Since the trunk lid needs to be opened and closed frequently, the wiring harness between the body and the trunk lid and the rubber hose outside it will wear out or even break. Causes the electrical functions inside the car's trunk lid to fail. In addition, although the threading sheet metal holes on the body and trunk lid are sealed by rubber parts, they are still not installed properly or the rubber parts are aging, etc., causing the threading sheet metal holes to leak, causing water to accumulate inside the body and trunk lid, resulting in Electrical damage to the car body and trunk lid.

Therefore, there is an urgent need in the automotive electrical technology field for a trunk that can save the amount of wire harnesses, prevent water leakage in the body or trunk lid, and at the same time, can safely and conveniently control the electrical appliances in the trunk lid.

Contents of the invention

The object of the present invention is to provide a new technical solution for a wirelessly controlled trunk. Through the wireless connection between the main controller and the sub-controller arranged in the trunk lid body, the present invention not only saves the amount of wiring harness in the car, but also avoids the wiring harness connection between the trunk lid and the body, and prevents the wiring harness from frequent bending. If the folding box is damaged, the risk of water and electricity leakage from the trunk is reduced. Improve car safety, reduce body weight and reduce production costs.

The invention provides a trunk lid controlled through a wireless network, which includes a main controller arranged in a vehicle body, a trunk lid body, at least one sub-controller and at least one electrical device arranged in the trunk lid body. , the main controller performs data and signal transmission with the sub-controller through a wireless network, and the sub-controller is connected to the electrical device.

Optionally, the electrical device includes one or more of a trunk door lock module, a rearview imaging module, a radar, and a trunk lighting module.

Optionally, the main controller includes a wireless transmitting unit, the sub-controller includes a wireless receiving unit, the output end of the main controller is connected to the wireless transmitting unit and sends control signals through the wireless network, and the sub-controller includes a wireless receiving unit. The input end of the controller is connected to the wireless receiving unit and receives the control signal.

Optionally, the main controller includes a wireless receiving unit, the sub-controller includes a wireless transmitting unit, the output end of the sub-controller is connected to the wireless transmitting unit and sends the status information through a wireless network, so The input end of the main controller is connected to the wireless receiving unit and receives the status information.

Optionally, the wireless transmitting unit further includes an encryption module. The output ends of the main controller and the sub-controller are connected to the wireless transmitting unit through the encryption module. The encryption module converts the control signal into Or the status information is encrypted; the wireless receiving unit includes a decryption module, the input terminals of the main controller and the sub-controller are connected to the wireless receiving unit through the decryption module, and the decryption module will receive Decrypt the control signal or the status information.

Optionally, a key is also included, and a wireless transmitting unit is provided in the key. The wireless transmitting unit is connected to the sub-controller through a wireless network.

Optionally, when the key and the main controller send control signals through the wireless network at the same time, the sub-controller shall be subject to the control signal of the main controller.

Optionally, the sub-controller further includes a signal strength detection device and at least three wireless receiving units. The sub-controller is connected to at least three wireless receiving units through the signal strength detection device, and at least three of the wireless receiving units are connected to the sub-controller. The wireless receiving unit is arranged at different positions in the trunk lid, receives the control signal of the key, and transmits it to the sub-controller through the signal strength detection device, and the sub-controller determines the position of the key. .

Optionally, the trunk further includes a door lock system disposed between the trunk lid and the vehicle body. When the door lock system is closed, the trunk lid is in a locked state. When the sub-controller determines that the key is in the trunk, the sub-controller controls the door lock system not to close.

Optionally, a mobile control terminal is also included, the mobile control terminal is connected to the sub-controller through a wireless network, and the sub-controller feeds back status information to the mobile control terminal through the wireless network.

Optionally, when the mobile control terminal and the main controller send control signals at the same time, the sub-controller shall be subject to the control signal of the main controller.

Optionally, a battery is also included, the battery is detachably installed in the backup cover body, the battery is electrically connected to the electrical load power device and the sub-controller through the wiring harness, and provides power to the The electrical load consuming device and the sub-controller provide electrical energy.

Optionally, a battery installation cavity is provided in the backup cover, and a snap-in mechanism is provided in the battery installation cavity and the battery to enable the battery to be snap-connected in the battery installation cavity; the backup cover An unlocking button is also provided on the inside, and the unlocking button can unlock the locking mechanism so that the battery can be taken out of the battery installation cavity.

Optionally, electrode contacts are provided on the battery, and electrode spring pieces are provided at corresponding positions in the battery installation cavity. When the battery is clamped in the battery installation cavity, the electrode contacts contact the electrode spring pieces. and electrically connected.

Optionally, a battery charging device is also provided in the vehicle body, and the battery is placed in the battery charging device and charged.

Optionally, a wireless charging coil is provided on the battery, and the wireless charging coil is electrically connected to the electrode contacts.

Optionally, a solar panel is provided on the inside of the trunk lid, the solar panel is connected to the trunk lid through a hinge structure, and the charging cable of the solar panel is electrically connected to the electrode contact. .

Optionally, the hinge structure flips the solar panel from the inside of the trunk lid to the outside of the trunk and charges the battery.

Optionally, the solar panel can be folded and unfolded.

Optionally, a distance sensor is provided in the trunk lid, and the distance sensor is connected to the sub-controller. The sub-controller sets the safety distance of the distance sensor. When the trunk is closed, the If there is an object blocking the door within a safe distance, the sub-controller controls the door lock system to close.

The characteristics and advantages of the present invention are:

1. Through the wireless connection between the main controller and the sub-controller arranged in the trunk lid body, the present invention not only saves the amount of wiring harness in the car, but also avoids the wiring harness connection between the trunk lid and the body, preventing the wiring harness from being damaged. Damage occurs due to frequent bending, which reduces the risk of water and electricity leakage in the trunk. Improve car safety, reduce body weight and reduce production costs.

2. Since there is no need to pass a long wire harness through the sheet metal through hole between the body and the trunk lid, the installation work is completed inside the body and inside the trunk lid respectively, saving installation and maintenance workers time in threading the wiring harness. Improve automotive assembly and Maintenance productivity.

3. A key and mobile control terminal are added to make the control of the trunk more convenient.

4. A signal strength detection device is set up. The signal strength of the key received through each wireless receiving unit is different. The sub-controller can determine whether the key is left in the car and control the door lock system to not lock to prevent the key from being left in the trunk. Inside and cannot be opened.

5. The encryption module and decryption module process the signal to make the control signal unique and avoid wireless transmission of control signals from different cars, causing misoperation of other vehicles.

6. Set up a separate battery nearby in the door to reduce the number and length of power supply harnesses. It also has wireless charging and solar charging functions, and can charge the battery in a variety of ways to avoid the car from being unable to operate normally due to low battery power.

Description of drawings

The drawings described here are used to provide a further understanding of the present invention, constitute a part of this application, and do not constitute a limitation of the present invention. In the attached picture:

Figure 1 is a structural block diagram of the wirelessly controlled trunk of the present invention;

Figure 2 is another structural block diagram of the wirelessly controlled trunk of the present invention;

Figure 3 is another structural block diagram of the wirelessly controlled trunk of the present invention;

Figure 4 is a schematic structural diagram of the signal strength detection device of the wirelessly controlled trunk of the present invention;

Figure 5 is a schematic structural diagram of the battery-related installation device of the wirelessly controlled trunk of the present invention;

Figure 6 is a schematic structural diagram of the wireless charging battery of the wirelessly controlled trunk of the present invention;

Figure 7 is a structural schematic diagram of a wirelessly controlled trunk solar panel of the present invention;

Figure 8 is another structural schematic diagram of the wirelessly controlled trunk solar panel of the present invention;

FIG. 9 is a schematic structural diagram of a distance sensor of a wirelessly controlled trunk according to the present invention.

Marked in the figure are as follows:
1. Main controller; 2. Sub-controller; 21. Signal strength detection device; 3. Wiring harness;
41. Trunk door lock module; 42. Rear view image module; 43. Trunk lighting module; 44. Radar;
5. Key;
6. Mobile control terminal;
71. Wireless transmitting unit; 72. Wireless receiving unit
81. Encryption module; 82. Decryption module;
9. Battery; 91. Wireless power receiving coil; 92. Wireless charging coil; 93. Battery installation cavity; 94. Snapping mechanism; 95. Unlock button; 96. Electrode contacts; 97. Electrode shrapnel;
10. Distance sensor; 11. Trunk cover; 12. Solar panel; 121. Hinge structure.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Here, the illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but are not used to limit the present invention.

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values set forth in these examples do not limit the scope of the invention unless otherwise specifically stated.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application or uses.

Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered a part of the specification.

In all examples shown and discussed herein, any specific values are to be construed as illustrative only and not as limiting. Accordingly, other examples of the exemplary embodiments may have different values.

A trunk lid controlled through a wireless network, as shown in Figure 1 or Figure 9, includes a main controller 1 arranged in the vehicle body, a trunk lid 11 and at least one sub-controller arranged in the trunk lid 11 The main controller 1 carries out data and signal transmission with the sub-controller 2 through the wireless network, and the sub-controller 2 is connected to at least one electric device.

The trunk is a place where items are placed in the car, but there are also many electrical appliances, and a lot of wire harnesses 3 are required to pass from the dashboard through the body and through the sheet metal holes of the body and the trunk before they can be connected to the electrical appliances in the trunk, especially the trunk. The electrical appliances in the trunk lid 11 and the wiring harness 3 also need to pass through the rubber hose to connect the electrical appliances in the trunk lid 11. Since the trunk lid 11 needs to be opened and closed frequently, the gap between the car body and the trunk lid 11 The wiring harness 3 and its external rubber hose will wear out or even break, causing the internal electrical functions of the trunk lid 11 to fail. In addition, although the threading sheet metal holes on the body and the trunk lid 11 are sealed by rubber parts, there are still reasons such as improper installation or aging of the rubber parts, causing the threading sheet metal holes to leak, causing the interior of the body and trunk lid 11 to leak. Water accumulation causes damage to the automobile body and the electrical appliances in the trunk lid 11.

Also, during the installation process of the car's wiring harness 3, the wiring sheet metal holes on the body and trunk are generally close to each other. On the side of the trunk, the branch of wire harness 3 is relatively long. It is difficult for wire harness 3 to pass through the sheet metal hole, and it takes a long time. During the process of passing through or removing it, the sheet metal hole may cause damage to the wire harness. Wire harness 3 causes secondary damage, so the threading operation of wire harness 3 should be avoided as much as possible to reduce assembly and maintenance man-hours and improve production efficiency.

Through the wireless connection between the main controller 1 and the sub-controller 2 arranged in the trunk cover 11, the present invention not only saves the amount of wiring harness 3 in the car, but also avoids the connection between the trunk cover 11 and the vehicle body. The wiring harness 3 is connected to prevent the wiring harness 3 from being damaged due to frequent bending, and reduces the risk of water and electricity leakage in the trunk. Improve car safety, reduce body weight and reduce production costs.

The main controller 1 includes a computing unit, which may include a central processing unit (CPU), a micro control unit (MCU), a digital signal processor (DSP), a programmable logic controller (PLC), or a field programmable logic gate array (FPGA). )wait. At the same time, a human-machine interface will be set up on the instrument panel. The driver can operate the main controller 1 through the human-machine interface. The computing unit converts the driver's operation into a control signal and sends it to the sub-controller 2 through the wireless network. The sub-controller The controller 2 will also send the status information of the electrical devices in the trunk to the main controller 1 through the wireless network. Wireless networks can be based on wireless communication technologies such as Bluetooth, wifi, ZigBee, Internet of Things (IOT), infrared, and Wireless Home Digital Interface (WDHI).

In one implementation, the sub-controller 2 can also be provided with a computing unit, which can include a central processing unit (CPU), a micro control unit (MCU), a digital signal processor (DSP), a programmable logic controller (PLC), Field programmable gate array (FPGA), etc. The sub-controller 2 is connected to the electrical device in the trunk through the wire harness 3, which can transmit the control signal to the electrical device more stably and quickly. The space inside the trunk lid is small. Even if the wire harness 3 is used to connect, the length of the branch of the wire harness 3 It's also shorter and doesn't add much weight to the harness.

In addition, the sub-controller 2 itself has calculation and control functions. The status monitoring and command information of some functions of the electrical devices in the trunk do not need to be transmitted to the main controller 1 for calculation and judgment through the wireless network, but can be directly transmitted to the sub-controller 1 for calculation and judgment. The controller 2 performs calculations and judgments, which not only reduces the calculation load of the main controller 1, but also saves the signal transmission process, allowing faster control of electrical devices, such as the automatic locking function of the trunk.

In one embodiment, as shown in FIG. 1 , the electrical device includes one or more of a trunk door lock module 41 , a rear view image module 42 , a trunk lighting module 43 and a radar 44 .

Trunk door lock module 41. At present, most cars use electronic lock systems. Electronic lock systems are controlled by electronic circuits and are electromechanical integration with electromagnets, micro motors and lock bodies (or relays) as actuators. Security device, it has experienced the development process from mechanical to electrification. Electronic lock systems can be divided into button-type electronic locks, dial-type electronic locks, electronic key 56-type electronic locks, touch-type electronic locks, and biometric electronic locks. .

The rear view image module 42 is generally installed above or below the license plate holder at the rear end of the car to record images of the rear of the car. It is mainly used by the driver to observe the situation behind the car and to reverse and park.

The trunk lighting module 43 includes trunk lighting, brake lights and left and right turn lights, which play the roles of lighting and indication respectively.

Radar 44, including various radars based on different technologies (such as laser, ultrasonic, microwave), has different functions such as detecting obstacles, predicting collisions or adaptive cruise control, and can undertake some tasks that require attention, judgment and technicality , thereby reducing the intensity of driving and reducing the burden on the driver.

Many other functions can be set up in the trunk, and most of these functions are driven by electric components. Therefore, the wiring harness 3 in the trunk may be used more and more. Using a wireless network to connect the trunk and the main controller 1, you can The usage of wire harness 3 is reduced to facilitate the maintenance and replacement of electrical appliances in the trunk. The setting of sub-controller 2 will also make the trunk more intelligent and can meet most of the needs of the Internet of Vehicles.

In one implementation, as shown in Figures 2 and 3, the main controller 1 includes a wireless transmitting unit 71, the sub-controller 2 includes a wireless receiving unit 72, and the output end of the main controller 1 is connected to the wireless transmitting unit 71 and The control signal is sent through the wireless network, and the input end of the sub-controller 2 is connected to the wireless receiving unit 72 and receives the control signal.

The wireless transmitting unit 71 is capable of converting the control signal of the main controller 1 into a wireless transmission signal and then sending it out through a wireless transmitting antenna. For example, F05R is a small-sized, low-voltage, micro-power wireless transmitting module. Adopting SMT technology, the sound surface frequency is stable and the performance is stable. It is especially suitable for small-sized wireless remote control and data transmission products powered by battery 9. The wireless receiving unit 72 is generally divided into two types: super regenerative and superheterodyne receiving modules. According to whether there is codec, it can also be divided into a wireless receiving head (without decoding, outputting pulse signals) and a wireless receiving board (with decoding chip, Output TTL level signal). The control signal of the main controller 1 is sent by the wireless transmitting unit 71 and then received by the wireless receiving unit 72, and converted into a control signal and transmitted to the sub-controller 2, and the sub-controller 2 controls the corresponding electrical device. .

In one implementation, as shown in Figures 2 and 3, the main controller 1 includes a wireless receiving unit 72, the sub-controller 2 includes a wireless transmitting unit 71, and the output end of the sub-controller 2 is connected to the wireless transmitting unit 71. The status information is sent through the wireless network, and the input terminal of the main controller 1 is connected to the wireless receiving unit 72 and receives the status information.

When the operating status of the electrical device in the trunk lid 11 changes, status information needs to be fed back to the main controller 1. At this time, the sub-controller 2 needs to be equipped with a wireless transmitting unit 71. The sub-controller 2 can The status information of the electrical device is transmitted to the wireless transmitting unit 71, and then the wireless transmitting unit 71 sends it out through the wireless transmitting antenna. The main controller 1 is equipped with a wireless receiving unit 72. After receiving the signal sent by the wireless network, the wireless receiving unit 72 of the main controller 1 converts it into status information of the electrical device and transmits it to the human-machine interface of the car so that the driver can The driver can understand the working status of the electrical device in the trunk lid 11 at any time, and can make corresponding feedback in a timely manner.

In one embodiment, as shown in Figures 2 and 3, the wireless transmitting unit 71 also includes an encryption module 81. The output ends of the main controller 1 and the sub-controller 2 are connected to the wireless transmitting unit 71 through the encryption module 81. Encryption The module 81 encrypts the control signal or status information; the wireless receiving unit 72 includes a decryption module 82. The input terminals of the main controller 1 and the sub-controller 2 are connected to the wireless receiving unit 72 through the decryption module 82. The decryption module 82 converts the received control Signal or status information decryption.

With the increasing progress of vehicle informatization, in-vehicle networks have been set up and used in most cars, and the signal negotiation between different vehicles has also increased accordingly. In order to prevent the wireless control signals between different vehicles from If other vehicles are mistakenly operated, each vehicle's signal transmission and reception will have corresponding encryption and decryption procedures. This is also to prevent hackers from invading the vehicle and prevent external signals from accessing the vehicle's information transmission network. The encryption module 81 uses the internal encoder to re-encode the control signal or status information according to certain rules, that is, the key, and then sends the encoded information through wireless transmission, so that even if other vehicles receive the wireless information , since there is no corresponding key, the corresponding information cannot be identified. At the same time, the key will also have its own identification code. If the identification code of other vehicles receiving information is inconsistent with its own identification code, it will not identify the corresponding information. . Only the information receiving device corresponding to the identification code, that is, the corresponding decryption module 82, will decrypt the information using the corresponding rules and pass the decrypted information to the corresponding main controller 1 or sub-controller 2.

In one embodiment, as shown in Figures 2 and 3, it also includes a key 5. A wireless transmitting unit 71 is provided in the key 5. The wireless transmitting unit 71 is connected to the sub-controller 2 through a wireless network.

Existing cars are equipped with several keys 5 for opening and locking car doors or trunks. The current car keys 5 all have remote control functions and are equipped with a wireless transmitting unit 71 inside, which can control the car doors or trunks through wireless networks. .

Several functions of car key 5:

1. Open a single door. When you need to enter the car in some chaotic situations, it may be dangerous to open all the doors at once. Then you can set it to open the cab door by pressing once and open the entire car door by pressing twice. .

2. The function of closing the window after the engine is turned off. Currently, many car keys 5 are equipped with the function of closing the window after the engine is turned off. You only need to press the lock button and the window will automatically close. Some models also require a long press of the lock button.

3. Automatically open the trunk. For some cars, you need to press the trunk twice in a row. For some cars, you need to press and hold the trunk control button. Then you can open the trunk.

4. Remote control window opening. When you need to get into the car in the summer and the car is stuffy, you can use remote control to open all the windows of the car first, so that the stuffy air in the car can be released before the vehicle is running.

5. Car search in the parking lot, press the car lock button twice (or even more times) continuously, the car will tell you its location with a very piercing whistle sound and flashing double flash, so that you can quickly search in places where there are more cars. Find your car. Or you can seek help in this way when you encounter trouble or danger in a dark underground parking lot.

The control signal of the car key 5 can be connected to the main controller 1 through the wireless network, and the main controller 1 sends the control signal to the trunk. It can also be connected to the sub-controller 2 through the wireless network, and the sub-controller 2 directly controls the trunk. The electrical device in the cover 11 operates to implement corresponding functions, which can reduce the calculation amount of the main controller 1 .

In one implementation, when the key 5 and the main controller 1 send control signals through the wireless network at the same time, the sub-controller 2 takes the control signal of the main controller 1 as the standard.

In actual use, there is a situation where the driver issues a control signal through the main controller 1 inside the car, and at the same time, another person outside the car holds the key 5 and sends a control signal. When the two control signals execute opposite commands, it will cause backup. The electrical device in the box cover 11 cannot operate or is stuck in action. Therefore, when the key 5 and the main controller 1 send control signals through the wireless network at the same time, the sub-controller 2 shall take the control signal of the main controller 1 as the standard. Focusing on the driver's wishes, the safety of car operation is ensured.

In one embodiment, as shown in Figure 4, the sub-controller 2 also includes a signal strength detection device 21 and at least three wireless receiving units 72. The sub-controller 2 communicates with at least three wireless receiving units through the signal strength detection device 21. 72 connection, at least three wireless receiving units 72 are arranged at different positions in the trunk lid 11 to receive the control signal of the key 5 and transmit it to the sub-controller 2 through the signal strength detection device 21. The sub-controller 2 determines the control signal of the key 5. Location.

In some cases, the driver will leave the key 5 inside the trunk. For safety reasons, most cars will be set to automatically lock the trunk after turning off the engine and closing the door for a certain period of time to prevent items in the car from being stolen. However, when the key 5 is left in the trunk and the driver discovers it after automatically locking the car, he can only use the spare key 5 or even break the window to open the trunk and take out the key 5.

In order to prevent the above situation, a signal strength detection device 21 is also provided in the sub-controller 2 of the trunk lid 11. The sub-controller 2 is connected to at least three wireless receiving units 72 through the signal strength detection device 21. The three wireless receiving units 72 is arranged at different positions in the trunk cover 11 to receive the control signal of the key 5 and transmit it to the sub-controller 2 through the signal strength detection device 21. The sub-controller 2 converts the signal strength of the key 5 into the key 5 location information, and determines whether the key 5 is in the trunk through the calculation unit in the sub-controller 2; in addition, the location information of the key 5 can also be transmitted by the sub-controller 2 to the main controller 1 through the wireless network, and the main controller The calculation unit in 1 determines whether the key 5 is inside the trunk based on the key 5 position information. If the car has been turned off and the key 5 is inside the trunk of the car, the trunk of the car will not be automatically locked and an alarm will sound within a certain period of time after the trunk lid 11 is closed.

In one embodiment, the trunk also includes a door lock system. When the door lock system is closed, the trunk lid 11 is in a locked state. When the sub-controller 2 determines that the key 5 is in the trunk, the sub-controller 2 controls the door lock. The system does not shut down.

The door lock system includes a trunk door lock module 41 arranged in the trunk lid 11 and a lock ring arranged on the trunk body part. The trunk door lock module 41 contains an electronic lock and a latch hook. The latch hook can be The electronic lock is driven to open and close. When the operator closes the trunk lid 11, the lock ring and the lock hook engage with each other so that the trunk lid 11 cannot be opened. When the sub-controller 2 sends an unlocking signal to the door lock system , the electronic lock is driven to open the lock hook, and the trunk lid 11 will be opened under the action of a hydraulic or electric strut.

As mentioned above, if the main controller 1 or the sub-controller 2 determines that the key 5 is located in the trunk, even if the operator closes the trunk lid 11, the electronic lock will be unlocked under the action of the unlock signal sent by the sub-controller 2. The door lock system will not be closed, the trunk lid 11 will continue to open and an alarm will sound to remind the operator.

In one implementation, as shown in Figures 2 and 3, it also includes a mobile control terminal 6. The mobile control terminal 6 is connected to the sub-controller 2 through a wireless network. The sub-controller 2 feeds back status information to the mobile control through the wireless network. Terminal 6.

The mobile control terminal 6 includes a mobile phone, a tablet or a mobile laptop, etc. The mobile control terminal 6 can be connected to the car's wireless network through wifi, Bluetooth, 4G network or 5G network, and communicate with the wireless transmitting unit 71 of the sub-controller 2 and the wireless network. The receiving unit 72 is wirelessly connected and can receive the status information sent by the sub-controller 2. Even if the driver is not in the car, he can know whether the trunk lid of the car is closed, the rear image of the car and other information through the mobile control terminal 6. So as to handle some abnormal situations in time. For example, when a person next to the car wants to take away the items in the trunk but does not bring the key 5, the operator in other places can use the mobile control terminal 6 to open the trunk in time. For example, if you receive a car abnormality alarm at home, you can check the image information in the trunk or rear of the car on your mobile phone to determine whether it is a false alarm or what the specific situation is. The mobile control terminal 6 can also transmit control signals to the trunk through installed software and control some functions, so that the driver can operate the trunk without going inside the car.

In one implementation, when the mobile control terminal 6 and the main controller 1 send control signals at the same time, the sub-control Controller 2 is subject to the control signal of main controller 1.

When the mobile control terminal 6 and the main controller 1 send control signals at the same time, it also means that someone is operating in the cab of the car. The sub-controller 2 will take the control signal sent by the main controller 1 as the standard to avoid the problem caused by the mobile control terminal 6 Misoperation may cause the car to behave unexpectedly.

In one embodiment, as shown in Figures 2 and 3, a battery 9 is also included. The battery 9 is detachably installed in the trunk cover body. The battery 9 is electrically connected to the electrical device and the sub-controller 2 through the wiring harness 3, and Provide electrical energy to electrical devices and sub-controller 2.

The trunk of the car is set behind the body, and the electrical devices in the trunk cover 11 all require electric energy to drive. If power is provided through a car generator or battery, a lot of power cords need to be connected between the body and the trunk. As a result, the installation time is increased. Therefore, the battery 9 is installed nearby the electrical device in the trunk lid 11 and is detachably installed in the trunk lid 11 to facilitate the replacement of the battery 9 . The battery 9 is arranged together with the electric device and the sub-controller 2, and is connected through a wiring harness 3 to provide electric energy.

In addition, the trunk door lock module 41, the rear view image module 42 and the trunk lighting module 43 in the trunk cover 11 of the car may still need to work after the car is turned off. For example, the trunk door lock module 41 is in the car. It is necessary to be able to open and close the door lock after the car is turned off to facilitate people to take items in the trunk. Therefore, it is necessary to set a separate battery 9 in the trunk lid body 11 so that it can also open and close the trunk lid after the car is turned off. The electrical devices in the body 11 are controlled and can be sent to the driver's mobile control terminal 6 through the wireless network.

In one embodiment, as shown in Figure 5, a battery installation cavity 93 is provided in the back cover, and a snap-in mechanism 94 is provided between the battery installation cavity 93 and the battery 9 to enable the battery 9 to be snap-connected to the battery installation cavity 93. inside; an unlocking button 95 is also provided on the inside of the backup cover. The unlocking button 95 can unlock the latch mechanism 94 so that the battery 9 can be taken out from the battery installation cavity 93 .

The electrical device in the trunk lid 11 has the battery 9 nearby. A battery installation cavity 93 needs to be provided inside the trunk lid 11 so that the battery 9 can be fixed in the battery installation cavity 93 to form the trunk. The electrical device inside the cover 11 supplies power. In order to prevent unstable power supply caused by shaking of the battery 9, a snap-in mechanism 94 is provided in the battery installation cavity 93 and on the battery 9, so that the battery 9 can be snap-connected in the battery installation cavity 93. As shown in Figure 4, the snap-in mechanism 94 includes a claw provided on the battery 9. The claw is fixed on the side of the battery 9 through a hinge and can rotate around the hinge. A spring is also provided between the claw and the battery 9 to enable the The claws are kept away from the battery 9. A slot is provided on the side of the battery installation cavity 93. When the battery 9 is inserted into the battery installation cavity 93, the claws engage with the slot, so that the battery 9 can be stably fixed in the battery installation cavity 93.

Since the power of the battery 9 is consumed during use, the battery in the trunk lid 11 needs to be replaced at a certain time. 9. It is necessary to easily remove the battery 9 from the battery installation cavity 93. An unlock button 95 is provided inside the trunk lid 11. The unlock button 95 can be directly installed on the side of the battery installation cavity 93 and clicked by pressing. The claws of the mechanism 94 are released from the slot, and the battery 9 can be taken out from the battery installation cavity 93 . The unlock button 95 can also be a button provided inside the trunk lid 11 . The button is connected to the ejection device. The button and the ejection device are connected through the wiring harness 3 . Pressing the button causes the ejection device to operate. The ejection device can press the clamping mechanism 94 The claw is released from the slot, and the battery 9 can be taken out from the battery installation cavity 93 .

In one embodiment, as shown in Figure 5, electrode contacts 96 are provided on the battery 9, and electrode spring pieces 97 are provided at corresponding positions in the battery installation cavity 93. When the battery 9 is clamped in the battery installation cavity 93, the electrodes The contact point 96 contacts the electrode elastic piece 97 and is electrically connected.

In order to enable the power of the battery 9 to be connected to the wiring harness 3 in the trunk cover 11 after the battery 9 is inserted into the battery installation cavity 93, electrode contacts 96 are provided at the bottom of the battery 9, which are respectively positive and negative contacts. point, electrode elastic pieces 97 are provided at corresponding positions in the battery installation cavity 93, which are positive electrode elastic pieces and negative electrode elastic pieces respectively. They are made of elastic metal sheets and have a certain elasticity, and can stably connect the electrode contacts 96 even under vibration conditions. . After the battery 9 is completely inserted into the battery installation cavity 93, the electrode contacts 96 come into contact with the electrode spring pieces 97 and are electrically connected. Through the wiring harness 3 connected to the electrode spring pieces 97, the electrical devices and distribution devices in the trunk cover 11 are Controller 2 supplies power.

In one embodiment, a battery 9 charging device (not shown in the figure) is also provided in the vehicle body, and the battery 9 is placed in the battery 9 charging device and charged.

When the remaining power of the battery 9 in the trunk lid 11 is lower than the alarm value, there may not be time to charge the battery 9. Therefore, a battery 9 charging device can be set up in the trunk of the car or other locations. When the car is running, , the battery 9 placed in the battery 9 charging device can be charged by a generator. When the remaining power of the battery 9 in the trunk lid 11 is lower than the alarm value, the battery 9 already charged in the charging device can be charged in time. The completed backup battery 9 can be taken out and replaced without delaying the use of the electrical device or sub-controller 2 in the trunk lid 11 .

In one embodiment, as shown in FIG. 6 , a wireless charging coil 92 is provided on the battery 9 , and the wireless charging coil 92 is electrically connected to the electrode contacts 96 .

The wireless power receiving coil 91 can be disposed on the side of the battery 9 and connected to the electrodes of the battery 9 for wireless charging of the battery 9 . Among them, the wireless power receiving coil 91 can wirelessly charge the battery 9 based on wireless charging methods such as electromagnetic induction coupling or magnetic resonance coupling.

Electromagnetic induction coupling means that when the wireless charging coil 92 is close to the wireless power receiving coil 91 , the energy signal emitted by the wireless charging coil 92 is coupled to the wireless power receiving coil 91 in an electromagnetic induction manner and is provided to the battery 9 .

Magnetic resonance coupling means that the wireless charging coil 92 is provided with a power transmitting side resonant capacitor in series with the wireless charging coil 92 , thereby forming a power transmitting side LC resonant circuit; the wireless power receiving coil 91 is provided with a power transmitting side resonant capacitor in series with the wireless power receiving coil 91 The power receiving side resonant capacitor forms a power receiving side LC resonant circuit; and the power transmitting side LC resonant circuit and the power receiving side LC resonant circuit have the same resonant frequency. When the wireless charging coil 92 is energized, the power-transmitting side LC resonant circuit will generate a high-frequency oscillating magnetic field; the magnetic field and the electric field at any position at any time in this high-frequency oscillating magnetic field are orthogonal to each other, and are different in phase. 1/2π, and the magnetic field intensity is much higher than the electric field intensity. This space electromagnetic field can store energy, but the synthesized electromagnetic wave power flow density is zero and will not transmit any energy. That is to say, this field will not radiate outwards or Will be lost inwards. When the wireless charging coil 92 is close to the wireless power receiving coil 91, the wireless power receiving coil 91 will fall into the range of the high-frequency vibration magnetic field. Since the power receiving side LC resonant circuit has the same resonant frequency as the power transmitting side LC resonant circuit, the power receiving side The side LC resonant circuit will generate resonance of the same frequency magnetic field, so that energy is coupled from the wireless charging coil 92 to the wireless power receiving coil 91 in the form of magnetic resonance, and is provided to the battery 9 .

In one embodiment, as shown in Figures 7-8, a solar panel 12 is provided on the inside of the trunk lid 11. The solar panel 12 is connected to the trunk lid 11 through a hinge structure 121. The charging of the solar panel 12 The cable is electrically connected to the electrode contacts 96 .

Due to imperfect supporting facilities or the vehicle being in a remote area, the battery 9 cannot be charged in time, which may result in the car trunk being unable to be opened. Therefore, there should be multiple ways to charge the battery 9 . The present invention is provided with a solar panel 12 inside the trunk lid 11. The solar panel 12 is a device that absorbs sunlight and converts solar radiation energy directly or indirectly into electrical energy through the photoelectric effect or the photochemical effect. The solar panel 12 is connected to the trunk lid 11 through the hinge structure 121. In order to prevent the solar panel 12 from falling off the trunk lid 11 due to vibration, a mounting part can also be provided at other positions of the solar panel 12 through snap-fitting. Or screwing, etc., the solar panel 12 is stably fixed on the inside of the trunk lid 11. At the same time, in order to reduce the interference between the solar panel 12 and the trunk lid 11 and produce abnormal noise, the installation part can prevent the interference between the solar panel 12 and the trunk lid 11. The shock pad can absorb vibration and also prevent the solar panel 12 from being damaged.

In order to reduce the weight of the trunk lid 11 and reduce the vibration and abnormal noise of the rigid solar panel 12, the solar panel 12 can use a flexible thin film solar cell. The flexible thin film solar cell does not need to use a glass back plate and cover plate, and is lighter than double layer Glass solar cell modules are 80% lighter, and flexible cells using PVC backsheets and ETFE film covers can even be bent at will, making them easy to carry.

In one embodiment, as shown in FIGS. 7-8 , the hinge structure 121 flips the solar panel 12 from the inside of the trunk lid 11 to the outside of the trunk and charges the battery 9 .

When the battery 9 is low in power and cannot be charged in time, the trunk lid 11 can be opened. Open, flip the solar panel 12 from the inside of the trunk lid 11 to the outside of the trunk lid 11 , and fix the solar panel 12 with the hinge structure 121 . The charging cable of the solar panel 12 is connected to the electrode of the battery 9, which converts solar energy into electrical energy to charge the battery 9.

In one embodiment, solar panel 12 is capable of folding and unfolding.

The larger the area of the solar panel 12, the higher the conversion efficiency of solar energy and the faster the charging. However, the area inside the trunk lid 11 is not large. A solar panel 12 with a corresponding area will take a long time to convert the battery 9 into energy. The power is replenished, so the solar panel 12 can be set to be foldable and openable. When not in use, it can be folded into a small area and placed inside the trunk lid 11. When needed, it can be opened and expanded into a large-area solar panel. 12, thereby improving charging efficiency and saving charging time.

The rigid solar panels 12 can be stacked, with multiple solar panels 12 stacked on top of each other and connected using a linkage mechanism. When necessary, the multiple solar panels 12 can be unfolded to form a plane. The flexible thin film solar cell can be rolled up and placed inside the trunk lid 11, and unfolded during use to charge the battery 9.

In one embodiment, as shown in Figure 9, a distance sensor 10 is provided in the trunk cover 11. The distance sensor 10 is connected to the sub-controller 2. The sub-controller 2 sets the safety distance of the distance sensor 10. When the trunk is closed When there is an object blocking the door within a safe distance, the sub-controller 2 will control the door lock system to close.

When the operator controls the main controller 1 in the car to issue an instruction to the sub-controller 2 to open the trunk lid 11, the trunk lid 11 opens under the action of the hydraulic or electric strut. However, if the operator does not observe There are objects blocking the top of the trunk lid 11. When the trunk lid 11 is opened, it will be scratched by other objects, affecting the appearance of the car body. Therefore, the distance sensor 10 is provided in the trunk lid 11 and connected to the sub-controller 2 through the wire harness 3 . The distance sensor 10 is used to sense the distance between it and an object to complete a preset function. It emits a particularly short light pulse and measures the time from the emission to the reflection of the light pulse back by the object. The distance sensor 10 calculates the distance between the light pulse and the distance sensor 10 by measuring the time interval. The distance between objects. Set a safe distance from the distance sensor 10 in the sub-controller 2. When the trunk is closed and there is an object blocking the safe distance, the sub-controller 2 controls the door lock system to close, thereby preventing the trunk lid 11 from being scratched by other objects when it is opened. arrive.

Although some specific embodiments of the invention have been described in detail by way of examples, those skilled in the art will understand that the above examples are for illustration only and are not intended to limit the scope of the invention. Those skilled in the art will understand that the above embodiments can be modified without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

A trunk lid controlled through a wireless network, characterized in that it includes a main controller arranged in the vehicle body, a trunk lid body, at least one sub-controller and at least one electrical device arranged in the trunk lid body. , the main controller performs data and signal transmission with the sub-controller through a wireless network, and the sub-controller is connected to at least one of the electrical devices.
The trunk lid controlled through a wireless network according to claim 1, wherein the electrical device includes one or more of a trunk door lock module, a rear view image module, a radar and a trunk lighting module. .
The trunk lid controlled through a wireless network according to claim 1, wherein the main controller includes a wireless transmitting unit, the sub-controller includes a wireless receiving unit, and the output end of the main controller is connected to the wireless receiving unit. The wireless transmitting unit is connected to and sends control signals through the wireless network, and the input end of the sub-controller is connected to the wireless receiving unit and receives the control signals.
The trunk lid controlled through a wireless network according to claim 1, wherein the main controller includes a wireless receiving unit, the sub-controller includes a wireless transmitting unit, and the output end of the sub-controller is connected to the wireless transmitting unit. The wireless transmitting unit is connected to and sends the status information through a wireless network, and the input end of the main controller is connected to the wireless receiving unit and receives the status information.
The trunk lid controlled through a wireless network according to claim 3 or 4, characterized in that the wireless transmitting unit further includes an encryption module, and the output terminals of the main controller and the sub-controller pass through the encryption module. The module is connected to the wireless transmitting unit, and the encryption module encrypts the control signal or the status information; the wireless receiving unit includes a decryption module, and the input terminals of the main controller and the sub-controller pass through the The decryption module is connected to the wireless receiving unit, and the decryption module decrypts the received control signal or status information.
The trunk lid controlled through a wireless network according to claim 1, further comprising a key, a wireless transmitting unit is provided in the key, and the wireless transmitting unit is connected to the sub-controller through a wireless network.
The trunk lid controlled through a wireless network according to claim 6, characterized in that when the key and the main controller send control signals through the wireless network at the same time, the sub-controller uses the main controller to The control signal shall prevail.
The trunk lid controlled through a wireless network according to claim 6, wherein the sub-controller further includes a signal strength detection device and at least three wireless receiving units, and the sub-controller detects the signal strength through the signal strength detection device. The device is connected to at least three wireless receiving units, and at least three wireless receiving units are arranged on Different positions in the trunk lid receive the control signal of the key and transmit it to the sub-controller through the signal strength detection device, and the sub-controller determines the position of the key.
The trunk lid controlled through a wireless network according to claim 8, wherein the trunk further includes a door lock system. When the door lock system is closed, the trunk lid is in a locked state. When the sub-controller determines that the key is in the trunk, the sub-controller controls the door lock system not to close.
The trunk lid controlled through a wireless network according to claim 1, further comprising a mobile control terminal, the mobile control terminal is connected to the sub-controller through the wireless network, and the sub-controller controls the The status information is fed back to the mobile control terminal.
The trunk lid controlled through a wireless network according to claim 10, characterized in that when the mobile control terminal and the main controller send control signals at the same time, the sub-controller uses the control signal of the main controller to The control signal shall prevail.
The trunk lid controlled through a wireless network according to claim 1, further comprising a battery, the battery being detachably installed in the trunk lid body, and the battery communicating with the power consumption through the wiring harness. The device is electrically connected to the sub-controller and provides electrical energy to the electrical device and the sub-controller.
The trunk lid controlled through a wireless network according to claim 12, characterized in that a battery installation cavity is provided in the trunk lid, and a snapping mechanism is provided in the battery installation cavity and the battery to enable the The battery is clamped in the battery installation cavity; an unlocking button is also provided on the inside of the backup cover, and the unlocking button can unlock the clamping mechanism so that the battery can be taken out of the battery installation cavity.
The trunk lid controlled through a wireless network according to claim 13, characterized in that electrode contacts are provided on the battery, and electrode spring pieces are provided at corresponding positions in the battery installation cavity. When the battery is clamped on the When the battery is installed in the cavity, the electrode contacts contact the electrode spring pieces and are electrically connected.
The trunk lid controlled through a wireless network according to claim 12, characterized in that a battery charging device is further provided in the vehicle body, and the battery is placed in the battery charging device and charged.
The trunk lid controlled through a wireless network according to claim 14, wherein a wireless charging coil is provided on the battery, and the wireless charging coil is electrically connected to the electrode contact.
The trunk lid controlled through a wireless network according to claim 14, wherein a solar panel is provided on the inside of the trunk lid, and the solar panel is connected to the trunk lid through a hinged structure. The charging cable of the solar panel is electrically connected to the electrode contact.
The trunk lid controlled through a wireless network according to claim 17, wherein the hinge structure flips the solar panel from the inside of the trunk lid to the outside of the trunk, and provides the Charging batteries.
The trunk lid controlled by a wireless network according to claim 17, wherein the solar panel can be folded and opened.
The trunk lid controlled through a wireless network according to claim 9, characterized in that a distance sensor is provided in the trunk lid body, the distance sensor is connected to the sub-controller, and the sub-controller is configured with the The safety distance of the distance sensor. When the trunk is closed and there is an object blocking the safety distance, the sub-controller controls the door lock system to close.