WO2024037466A1

WO2024037466A1 - Vehicle door system controlled by wireless network

Info

Publication number: WO2024037466A1
Application number: PCT/CN2023/112690
Authority: WO
Inventors: 王超
Original assignee: 吉林省中赢高科技有限公司
Priority date: 2022-08-13
Filing date: 2023-08-11
Publication date: 2024-02-22
Also published as: CN115476785A

Abstract

Disclosed in the present invention is a vehicle door system controlled by a wireless network, comprising a primary controller and a first electric load device which are arranged on one of a plurality of vehicle doors, a secondary controller and a second electric load device which are arranged on another vehicle door, and at least one sub-controller and at least one third electric load device which are arranged in the remaining vehicle doors, wherein the primary controller is connected to the first electric load device; the secondary controller is connected to the second electric load device; the sub-controller is connected to at least one third electric load device; and the primary controller performs data and signal transmission with the sub-controller and the secondary controller by means of a wireless network. The present invention reduces the number of wire harnesses in a vehicle, and also avoids wire harness connections between vehicle doors and a vehicle body, such that damage to wire harnesses caused by frequent bending is prevented, and the risks of water leakage and electric leakage of the vehicle doors and the vehicle body are reduced, thereby improving the safety of vehicles, reducing the weight of vehicles, and reducing production costs.

Description

A car door system controlled via wireless network

This application claims priority from the Chinese patent application with application number 2022109707510 and the invention title "A Car Door System 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 car door system controlled through a wireless network.

Background technique

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.

There are a variety of electrical appliances inside the car door to realize many functions. The power and control signals of the electrical appliances inside the car are transmitted from the main wiring harness of the car body. Since the car door needs to be opened and closed frequently, the main wiring harness of the body and the door wiring harness pass through the sheet metal. Perforations and rubber hoses are connected and protected, but during the long opening and closing process of the car door, the wiring harness between the body and the door and the external rubber hose will wear or even break, causing the internal electrical functions of the car door to fail. In addition, although the threading sheet metal holes on the body and doors 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 doors, affecting the comfort of the driver. experience, and even cause damage to car electrical appliances.

Some existing patented technologies change the power transmission between the body and the door to electromagnetic coupling transmission. However, this power transmission method causes a large power loss and wastes energy; electromagnetic coupling transmits power and also produces large electromagnetic interference. , making some electrical appliances inside the car unable to work and be used normally.

Therefore, there is an urgent need in the field of automotive electrical appliance technology for a door system that can save the amount of wire harnesses, prevent water leakage in the body or door, and at the same time be able to safely and conveniently control the door's electrical appliances.

Contents of the invention

The purpose of the present invention is to provide a new technical solution for a car door system controlled through a wireless network. Through a main controller and a first electric load device provided on one of the plurality of vehicle doors, a secondary controller and a second electric load device provided on another door, and at least one sub-controller provided in the remaining doors. The wireless network connection between the controller and at least one third electrical load device achieves the purpose of saving the connection wire harness between the body and the door, and reduces the weight of the automobile wire harness. At the same time, there is no need to drill holes in the sheet metal between the body and the door to pass through the wiring harness, which prevents external water from entering the body and door.

The invention provides a car door system controlled through a wireless network, including a main controller and a first electric load device provided on one of a plurality of car doors, a secondary controller and a second electric load provided on the other car door. device, as well as at least one sub-controller and at least one third electric load device provided in the remaining doors, the main controller is connected to the first electric load device, the secondary controller is connected to the second electric load Device connection, the sub-controller is connected to at least one of the third electrical load devices, and the main controller performs data and signal transmission with the sub-controller and the secondary controller through a wireless network.

Optionally, the sub-controller is electrically connected to the third electrical load device through a wire harness.

Optionally, the sub-controller is connected to the third electrical load device through a wireless network.

Optionally, the first electrical load device, the second electrical load device and the third electrical load device respectively include a door lock module, an electric window module, an audio module, a door light module and a rearview mirror adjustment 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 connected to the wireless receiving unit of each vehicle door, and the control signal of the key is received by the wireless receiving unit. The signal strength detection device transmits it to the sub-controller, and then the sub-controller transmits it to the main controller through the wireless network, and the main controller determines the location of the key.

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 each of the vehicle doors, the battery is electrically connected to the second electrical load device and the sub-controller through the wiring harness, and provides power to the The second electrical load device and the sub-controller provide electrical energy.

Optionally, a battery installation cavity is provided inside the door, and a snap-in mechanism is provided inside the battery installation cavity and the battery to enable the battery to be snap-connected in the battery installation cavity; the inside of the door is also provided with a locking mechanism. An 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, the battery is also provided with a power monitoring device, which can monitor the remaining power of the battery. The power monitoring device is electrically connected to the battery and the sub-controller through a wiring harness, and connects the power monitoring device to the battery and the sub-controller. The remaining power information of the battery is fed back to the sub-controller.

Optionally, the battery is also provided with a power display device. The power display device is installed inside the door. The power display device is electrically connected to the sub-controller and can display the remaining power of the battery through a display interface.

Optionally, the battery is also equipped with a power alarm device, the power alarm device is electrically connected to the sub-controller, and the sub-controller sets an alarm value for the remaining power of the battery. When the remaining power of the battery When the power is lower than the alarm value, the sub-controller sends an alarm message through the power display device, and/or the sub-controller feeds back the alarm signal to the main controller through the wireless network. The main controller sends alarm information through the car display terminal.

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, the batteries in each vehicle door are all the same.

The characteristics and advantages of the present invention are:

1. Through the main controller and the first electric load device provided on one of the plurality of car doors, the secondary controller and the second electric load device provided on the other car door, and at least one sub-controller provided in the remaining car doors. The controller and at least one third electrical load device achieve the purpose of saving the connection wire harness between the body and the door, and reduce the weight of the automobile wire harness. At the same time, there is no need to drill holes in the sheet metal between the body and the door to pass through the wiring harness, which prevents external water from entering the body and door.

2. Since there is no need to pass a long wire harness through the sheet metal through hole between the body and the door, the installation work is completed inside the body and inside the door respectively, which saves the time of installation and maintenance workers in threading the wire harness, and improves vehicle assembly and Maintenance productivity.

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

4. Set up a separate battery nearby in the car 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 accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

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

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

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

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

Figure 5 is a schematic structural diagram of the wireless rechargeable battery of the wirelessly controlled door system of the present invention;

Figure 6 is another structural schematic diagram of the wireless rechargeable battery of the wirelessly controlled door system of the present invention;

Figure 7 is a structural block diagram of the remaining two door battery-related devices of the wirelessly controlled door system of the present invention;

Figure 8 is a schematic structural diagram of the door battery-related installation device of the wirelessly controlled door system of the present invention.

Marked in the figure are as follows:
1. Main controller; 2. Sub-controller; 3. Secondary controller; 4. Wiring harness;
51. Door lock module; 52. Electric window module; 53. Audio module; 54. Door light module; 55. Rearview mirror adjustment module;
6. Key; 61. Signal strength detection device;
71. Wireless transmitting unit; 72. Wireless receiving unit
81. Encryption module; 82. Decryption module;
9. Mobile control terminal;
10. Battery; 101. Wireless power receiving coil; 102. Wireless charging coil; 103. Power monitoring device; 104.
Power display device; 105. Power alarm device; 106. Battery installation cavity; 107. Snapping mechanism; 108. Unlock button; 109. Electrode contacts; 110. Electrode shrapnel.

Detailed ways

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.

The present invention provides a wirelessly controlled car door system. As shown in Figure 1, it includes a main controller 1 and a first electric load device provided on one of a plurality of car doors, and a secondary controller 3 provided on the other car door. and a second electric load device, as well as at least one sub-controller and at least one third electric load device provided in the remaining doors. The main controller 1 is connected to the first electric load device, and the secondary controller 3 is connected to the second electric load device. connection, the sub-controller 2 is connected to at least one third electrical load device, and the main controller 1 performs data and signal transmission with the secondary controller 3 and the sub-controller 2 through the wireless network.

In this embodiment, through the wireless network connection between the main controller 1 provided on one of the multiple car doors, the secondary controller 3 provided on the other car door, and the sub-controller 2 provided in the remaining car doors, electrical load device For feedback of control signals and status information, there is no need to thread the wiring harness 4 between the body and the door, which not only saves the usage of the wiring harness 4, but also ensures the timeliness and stability of the transmission of control signals and status information.

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 load device in the door 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 embodiment, the sub-controller 2 is electrically connected to the third electrical load device through the wire harness 4 . In some application scenarios, the sub-controller 2 and the third electrical load device are connected through the wire harness 4 .

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 electric load device inside the door through the wire harness 4, which can transmit the control signal to the electric load device more stably and quickly. The space inside the door is small. Even if the wire harness 4 is used to connect, the length of the branch of the wire harness 4 is also short. , will not add too much weight to the wiring harness 4.

In addition, the sub-controller 2 itself has calculation and control functions. The status monitoring and command information of some functions of the electric load device inside the door do not need to be transmitted to the main controller 1 for calculation and judgment through the wireless network. Instead, the sub-controller 2 can be directly used by the sub-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, and can control the electric load device more quickly, such as the automatic locking function of the car door lock.

In one implementation, the sub-controller 2 is connected to the third electrical load device through a wireless network. In some application scenarios, the wire harness 4 can be saved by connecting the sub-controller 2 and the third electrical load device through a wireless network.

In one embodiment, as shown in Figure 1 , the first electrical load device, the second electrical load device and the third electrical load device respectively include a door lock module 51, an electric window module 52, an audio module 53, and a door light module 54. and rearview mirror adjustment module 55. In addition to protecting the people inside the car, car doors also have many electrical functions.

Door lock module 51. At present, most cars use electronic lock systems. The electronic lock system is a mechatronic safety device controlled by electronic circuits, with electromagnets, micro motors and lock bodies (or relays) as actuators. , 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 6-type electronic locks, touch-type electronic locks, and biometric electronic locks.

The electric window module 52, also called the glass lift module, is a device that drives the glass lift motor through the vehicle power supply to move the lift up and down and drive the window glass up and down to achieve the purpose of automatically opening and closing the window. The electric window allows the driver or passenger to sit in the seat and use the switch to automatically raise and lower the door glass, which is easy to operate and is beneficial to driving safety.

The audio module 53, which is also a speaker, can be installed under the car door. It sends audio signals through the host computer and power amplifier on the dashboard, and the main controller 1 transmits them to the sub-controller 2 through the wireless network. The sub-controller 2 is transmitted to the speakers through the wiring harness 4, which can form surround sound inside the car, so that people in the car can enjoy stable and perfect sound quality, and reduce the boring feeling of the driver and passengers during travel.

The door light module 54 is a lighting system installed on the car door and rearview mirror. It can be used as auxiliary information for the turn indicator light. It can also provide some door status information through some set light colors and flashing frequencies, such as car doors. Lock opening and closing.

The rearview mirror adjustment module 55 is installed at the installation position of the left and right rearview mirrors on the car door. It is equipped with a drive motor and can adjust the angle and position of the left and right rearview mirrors through the buttons on the car door, so that the people in the car can adjust the angle and position of the left and right rearview mirrors without having to step down. car, you can adjust the left and right rearview mirrors without having to reach out of the car. In addition, when the car starts or stops, the left and right rearview mirrors can also be automatically controlled to pop up and fold to prevent the left and right rearview mirrors from being scratched after parking.

Many other functions can be set in the car door, and most of these functions are driven by electric components. Therefore, the amount of wiring harness 4 in the door may be increasing. Using a wireless network to connect the door and the main controller 1 can reduce the wiring harness 4 The amount is convenient for door repair and replacement. The setting of sub-controller 2 will also make the door more intelligent and can meet most of the needs of the Internet of Vehicles.

In one implementation, as shown in Figure 2, the main controller 1 includes a wireless transmitting unit 71, the sub-controller 2 includes a wireless receiving unit 81, and the output end of the main controller 1 is connected to the wireless transmitting unit 71 and communicates through a wireless network. To send a control signal, the input end of the sub-controller 2 is connected to the wireless receiving unit 81 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 10. Wireless receiving unit 81 is generally divided into two types: super regenerative and superheterodyne receiving modules. According to whether there is codec, it can also be divided into wireless receiving head (without decoding, output pulse signal), 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 81, and converted into a control signal and transmitted to the sub-controller 2, and the sub-controller 2 controls the corresponding third electrical load device. Take control.

In one implementation, as shown in Figure 2, the main controller 1 includes a wireless receiving unit 81, 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 and communicates through a wireless network. To send status information, the input terminal of the main controller 1 is connected to the wireless receiving unit 81 and receives the status information.

When the operating status of the electric load device on the vehicle body changes, the 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 transmit the data of the electric load device to the main controller 1. The status information is passed 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 81. After the wireless receiving unit 81 of the main controller 1 receives the signal sent by the wireless network, it converts it into status information of the electrical load device and transmits it to the human-machine interface of the car so that the driver can Understand the working status of the electric load device in each door at any time, and make corresponding feedback in a timely manner.

In one embodiment, as shown in Figure 2, 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. The encryption module 81 The control signal or status information is encrypted; the wireless receiving unit 81 includes a decryption module 91. The input terminals of the main controller 1 and the sub-controller 2 are connected to the wireless receiving unit 81 through the decryption module 91. The decryption module 91 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 91, will decrypt the information using the corresponding rules and pass the decrypted information to the corresponding main controller 1 and sub-controller 2.

In one implementation, as shown in Figure 2, the car also includes a key 6, a wireless transmitting unit 71 is provided in the key 6, and the wireless transmitting unit 71 is connected to the sub-controller 2 through a wireless network.

Existing cars are equipped with several keys 6 for opening and locking the car doors. The current car keys 6 all have remote control functions and are equipped with a wireless transmitting unit 71 inside, which can control car doors or other electrical appliances through a wireless network.

Several functions of car key 6:

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 6 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.

6. The control signal of the car key 6 can be connected to the main controller 1 through the wireless network, and the main controller 1 will send control signals to each car door. It can also be connected to the sub-controller 2 through the wireless network, and the sub-controller 2 will directly control it. The second electric load device in the door acts to implement corresponding functions, which can reduce the calculation amount of the main controller 1.

In one implementation, when the key 6 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 6 and sends a control signal. When the two control signals execute opposite commands, it will cause the third The second electric load device cannot operate or is stuck in action. Therefore, when the key 6 and the main controller 1 send control signals through the wireless network at the same time, the sub-controller 2 will take the control signal of the main controller 1 as the standard and follow the driver's wishes. Mainly to ensure the safety of car operation.

In one embodiment, as shown in Figure 4, the sub-controller 2 also includes a signal strength detection device 61. The signal strength detection device 61 is connected to the wireless receiving unit 81 of each door. The control signal of the key 6 is received by the wireless receiving unit 81. It is received and transmitted to the sub-controller 2 through the signal strength detection device 61, and then transmitted to the main controller 1 through the wireless network by the sub-controller 2. The main controller 1 determines the position of the key 6.

In some cases, the driver will leave the key 6 inside the car. For safety reasons, most cars will be set to automatically lock the car 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 6 is left in the car and the driver discovers it after the car is automatically locked, the car door can only be opened by using the spare key 6 or even by breaking the window.

In order to prevent the above situation, a signal strength detection device 61 is also provided in the sub-controller 2 of the car door. The signal strength detection device 61 in the four car doors can receive the control signal of the key 6 through the wireless receiving unit 81 and send the key to the control signal. The signal strength of 6 is converted into key 6 position information and transmitted to the main controller 1 through the wireless network. The calculation unit in the main controller 1 determines the key 6 according to the signal strength of the key 6 detected by each signal strength detection device 61. Whether it is inside the car or not, if the car has been turned off and key 6 is inside the car, the car will not automatically lock and will sound an alarm within a certain period of time after the door is closed.

In one implementation, as shown in Figure 2, the car also includes a mobile control terminal 9. The mobile control terminal 9 is connected to the sub-controller 2 through a wireless network. The sub-controller 2 feeds back status information to the mobile control terminal 9 through the wireless network. .

The mobile control terminal 9 includes a mobile phone, a tablet or a mobile laptop, etc. The mobile control terminal 9 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 81 is connected wirelessly and can receive the status information sent by the sub-controller 2. Even if the driver is not in the car, he can use the mobile control terminal 9 to know whether the car door is closed, whether the car glass is raised, etc., so as to Handle some abnormal situations in time. For example, when parents forget their children in the car, they can use the mobile control terminal 9 to open the window or door in time to prevent the child from suffocating in the car. For example, if you receive a car abnormality alarm at home, you can check the status information of each car door or window on your mobile phone to determine whether it is a false alarm or what the specific situation is. The mobile control terminal 9 can also transmit control signals to each car door through installed software and control some functions, so that the driver can operate each car door without going inside the car.

In one implementation, when the mobile control terminal 9 and the main controller 1 send control signals at the same time, the sub-controller 2 takes the control signal of the main controller 1 as the standard. When the mobile control terminal 9 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 9 Misoperation may cause the car to behave unexpectedly.

In one embodiment, as shown in FIG. 3 , a battery 10 is also included. The battery 10 is detachably installed in each vehicle door. The battery 10 is electrically connected to the second electrical load device and the sub-controller 2 through the wiring harness 4 and provides The second electrical load device and sub-controller 2 provide electrical energy.

The car door is set on the side of the car body, and the electrical load device in the door requires electric energy to drive. If the power is provided by a car generator or battery, a lot of power cords need to be connected between the car body and the door, which increases the installation time. , Therefore, the second electrical load device in the door is provided with the battery 10 nearby, and is detachably installed in each door to facilitate the replacement of the battery 10 . The battery 10 is located together with the second electrical load device and the sub-controller 2, and is connected through a wire harness 4 to provide electrical energy.

In addition, the door lock module 51, power window module 52 and audio module 53 in the car door may still need to work after the car is turned off. For example, the door lock module 51 must be able to open and close the door lock after the car is turned off. It is convenient for people to get on and off the car, so it is necessary to install a separate battery 109 in the car door, so that after the car is turned off, it can also control the second electrical load device in the car door and send it to the driver through the wireless network. on the mobile control terminal 9 of the personnel.

In one embodiment, as shown in FIG. 8 , a battery installation cavity 106 is provided inside the vehicle door, and a snap-in mechanism 107 is provided inside the battery installation cavity 106 and the battery 10 to enable the battery 10 to be snap-connected in the battery installation cavity 106 . ; An unlocking button 108 is also provided on the inside of the door. The unlocking button 108 can unlock the latch mechanism 107 so that the battery 10 can be taken out of the battery installation cavity 106 .

The second electric load device in the car door has the battery 10 nearby. On the inside of the door, a battery installation cavity 106 needs to be provided so that the battery 10 can be fixed in the battery installation cavity 106. It is the second electric load device in the car door. Provide power. In order to prevent unstable power supply caused by shaking of the battery 10, a snap-in mechanism 107 is provided in the battery installation cavity 106 and on the battery 10, so that the battery 10 can be snap-connected in the battery installation cavity 106. As shown in FIG. 8 , the clamping mechanism 107 includes a claw provided on the battery 10 . The claw is fixed on the side of the battery 10 through a hinge and can rotate around the hinge. A spring is also provided between the claw and the battery 10 to allow the battery 10 to rotate. The claws are kept away from the battery 10 . A slot is provided on the side of the battery installation cavity 106. When the battery 10 is inserted into the battery installation cavity 106, the claws engage with the slot, so that the battery 10 can be stably fixed in the battery installation cavity 106.

Since the power of the battery 10 is consumed during use, the battery 10 in the car door needs to be replaced at a certain time. The battery 10 needs to be easily removed from the battery installation cavity 106. An unlock button 108 is provided on the inside of the door. The unlock button 108 can be It is directly arranged on the side of the battery installation cavity 106. By pressing the claws of the clamping mechanism 107 to disengage them from the slot, the battery 10 can be taken out of the battery installation cavity 106. The unlock button 108 can also be a button arranged on the inside of the door. The button is connected to the ejection device. The button and the ejection device are connected through the wiring harness 4. Pressing the button causes the ejection device to operate. The ejection device can press the claw of the clamping mechanism 107. After it is released from the slot, the battery 10 can be taken out from the battery installation cavity 106 .

In one embodiment, as shown in Figure 8, electrode contacts 109 are provided on the battery 10, and electrode spring pieces 110 are provided at corresponding positions in the battery installation cavity 106. When the battery 10 is clamped in the battery installation cavity 106, the electrodes The contact point 109 contacts the electrode elastic piece 110 and is electrically connected.

In order to enable the battery 10 to be inserted into the battery installation cavity 106 so that the power of the battery 10 can be connected to the wiring harness 4 in the door, electrode contacts 109 are provided at the bottom of the battery 10, which are positive contacts and negative contacts respectively. The battery is installed Electrode spring pieces 110 are provided at corresponding positions in the cavity 106, which are positive electrode spring pieces and negative electrode spring pieces, made of elastic metal sheets. It has a certain degree of elasticity and can firmly connect the electrode contacts 109 under vibration conditions. After the battery 10 is completely inserted into the battery installation cavity 106, the electrode contacts 109 come into contact with the electrode spring piece 110 and are electrically connected. Through the wire harness 4 connected to the electrode spring piece 110, it is the second electrical load device and sub-controller in the door. 2 power supply.

In one embodiment, as shown in Figures 6 and 7, the battery 10 is also provided with a power monitoring device 103. The power monitoring device 103 can monitor the remaining power of the battery 10. The power monitoring device 103 communicates with the battery 10 through the wiring harness 4 and is controlled separately. The controller 2 is electrically connected, and the remaining power information of the battery 10 is fed back to the sub-controller 2.

The battery 10 may be a dry battery 10 or a rechargeable battery 10. The rechargeable battery 10 may be a lead-acid battery 10, a nickel-cadmium battery 10, a nickel-hydrogen battery 10, a lithium-ion battery 10, etc. In order to enable the battery 10 to be reused, a rechargeable battery 10 is used in the present invention. When the rechargeable battery 10 is used for a certain period, the power inside the battery 10 will be consumed, making it impossible to drive the second electrical load device and the sub-controller. 2. Therefore, the remaining power in the battery 10 needs to be monitored frequently. The power monitoring device 103 is connected to the electrodes of the battery 10 . Its internal detection device can detect the voltage and current status of the battery 10 , calculate the remaining power of the battery 10 through a pre-stored calculation method, and use the wiring harness 4 to calculate the remaining power of the battery 10 . The remaining power information is fed back to sub-controller 2. The sub-controller 2 transmits the remaining power information of the battery 10 to the main controller 1 through the wireless network, and the main controller 1 displays it on the human-machine interface, so that the driver can monitor the remaining power of the battery 10 carried by each door in real time. power.

In one embodiment, as shown in Figures 6 and 7, the battery 10 is also provided with a power display device 104. The power display device 104 is installed inside the door. The power display device 104 is electrically connected to the sub-controller 2 and can be displayed through the display interface. Displays the remaining power of battery 10.

The remaining power information of the battery 10 can be viewed in the human-machine interface, or a power display device 104 can be provided on the battery 10. The power display device 104 can be a liquid crystal screen or a digital tube, and can display the information of the battery 10 transmitted by the sub-controller 2. The remaining power information is directly displayed, so that the driver can also check the remaining power information of the battery 10 when observing each car door.

In one embodiment, as shown in Figures 6 and 7, the battery 10 is also provided with a power alarm device 105. The power alarm device 105 is electrically connected to the sub-controller 2. The sub-controller 2 sets an alarm value for the remaining power of the battery 10. When the remaining power of the battery 10 is lower than the alarm value, the sub-controller 2 sends an alarm message through the current display device, and/or the sub-controller 2 feeds back the alarm signal to the main controller 1 through the wireless network, and the main controller 1 Alarm information is sent through the car display terminal.

Both the human-machine interface and the power display device 104 only display the current remaining power information of the battery 10. If the driver does not notice that the remaining power information of the battery 10 is lower than the threshold, it may cause the second electrical load device or Sub-controller 2 stops working due to lack of power, and controls such as doors or windows fail during vehicle operation. It will affect the driver's operation and may make wrong judgments. Therefore, the battery 10 is also equipped with a power alarm device 105. The power alarm device 105 is connected to the sub-controller 2 through the wiring harness 4, and sets a threshold value for the remaining power information of the battery 10 in the sub-controller 2, that is, an alarm value. If the remaining power of the battery 10 is lower than the alarm value, the driver needs to be reminded to charge the battery 10 in time or replace the battery 10 with electricity. The information that the power alarm device 105 issues an alarm includes, but is not limited to, highlighting or flashing of part of the display content, whistle or voice prompts, etc.

In one embodiment, a battery charging device (not shown in the figure) is also provided in the vehicle body, and the battery 10 is placed in the battery charging device and charged.

When the remaining power of the battery 10 in the car door is lower than the alarm value, there may not necessarily be time to charge the battery 10. Therefore, a battery charging device can be set up in the trunk of the car or other locations. When the car is running, it can generate electricity by machine to charge the battery 10 placed in the battery charging device. When the remaining power of the battery 10 in the door is lower than the alarm value, the spare battery 10 that has been charged in the battery charging device can be taken out and replaced in time. It will delay the use of the second electrical load device or sub-controller 2 in the door.

In one embodiment, as shown in FIG. 5 , a wireless charging coil 102 is provided on the battery 10 , and the wireless charging coil 102 is electrically connected to the electrode contacts 109 .

The wireless power receiving coil 101 can be disposed on the side of the battery 10 and connected to the electrodes of the battery 10 for wireless charging of the battery 10 . Among them, the wireless power receiving coil 101 can wirelessly charge the battery 10 based on wireless charging methods such as electromagnetic induction coupling or magnetic resonance coupling.

Electromagnetic induction coupling means that when the wireless charging coil 102 is close to the wireless power receiving coil 101 , the energy signal emitted by the wireless charging coil 102 is coupled to the wireless power receiving coil 101 in an electromagnetic induction manner and is provided to the battery 10 .

Magnetic resonance coupling means that the wireless charging coil 102 is provided with a power transmitting side resonant capacitor in series with the wireless charging coil 102, thereby forming a power transmitting side LC resonant circuit; the wireless power receiving coil 101 is provided with a power transmitting side resonant capacitor in series with the wireless power receiving coil 101. 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 102 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 102 is close to the wireless power receiving coil 101, the wireless power receiving coil 101 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 coil 101 will fall into the range of the high-frequency vibration magnetic field. The side LC resonant circuit will generate resonance of the same frequency magnetic field, so that energy is coupled from the wireless charging coil 102 to the wireless power receiving coil 101 in the form of magnetic resonance, and is provided to the battery 10 .

In one embodiment, the batteries 10 in each door are all the same. In order to make the batteries 10 in each door interchangeable, all batteries 10 can be set to the same specification and model. All batteries 10 can be charged in the battery 10 charging device. When the battery 10 in a certain door When the remaining power is lower than the alarm value, you can directly replace the charged battery 10 without checking the size and model of the battery 10 .

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 car door system controlled through a wireless network, characterized in that it includes a main controller and a first electrical load device provided on one of the plurality of car doors, a secondary controller and a second electric load device provided on the other car door. Electric load device, as well as at least one sub-controller and at least one third electric load device provided in the remaining doors, the main controller is connected to the first electric load device, and the secondary controller is connected to the second The electric load device is connected, the sub-controller is connected to at least one third electric load device, and the main controller performs data and signal transmission with the sub-controller and the secondary controller through a wireless network.
The vehicle door system controlled through a wireless network according to claim 1, wherein the sub-controller is electrically connected to the third electrical load device through a wire harness.
The vehicle door system controlled through a wireless network according to claim 1, wherein the sub-controller is connected to the third electrical load device through a wireless network.
The vehicle door system controlled through a wireless network according to claim 1, wherein the first electrical load device, the second electrical load device and the third electrical load device respectively include a door lock module, an electric window One or more of a module, an audio module, a door light module and a rearview mirror adjustment module.
The car door system controlled through a wireless network according to claim 1, characterized in that 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 transmitting 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 car door system controlled through a wireless network according to claim 1, characterized in that 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 The wireless transmitting unit is connected to and sends the status information through the wireless network, and the input end of the main controller is connected to the wireless receiving unit and receives the status information.
The car door system controlled through a wireless network according to claim 5 or 6, 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. Connected to the wireless transmitting unit, 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 A decryption module is connected to the wireless receiving unit, and the decryption module decrypts the received control signal or status information.
The car door system 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 car door system controlled through a wireless network according to claim 8, 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 control signal of the main controller to The control signal shall prevail.
The car door system controlled through a wireless network according to claim 8, wherein the sub-controller further includes a signal strength detection device, and the signal strength detection device is connected to the wireless receiving unit of each of the car doors, The control signal of the key is received by the wireless receiving unit, transmitted to the sub-controller through the signal strength detection device, and then transmitted to the main controller by the sub-controller through the wireless network. The main controller determines the location of the key.
The car door system 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 transmits the status to the sub-controller through the wireless network. Information is fed back to the mobile control terminal.
The car door system controlled through a wireless network according to claim 11, 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 of the main controller to The signal shall prevail.
The car door system controlled through a wireless network according to claim 1, further comprising a battery, the battery being detachably installed in each of the car doors, and the battery being connected to the first battery through the wiring harness. The load device, the second electric load device and the sub-controller are electrically connected, and provide electric energy to the first electric load device, the second electric load device and the sub-controller.
The car door system controlled through a wireless network according to claim 13, characterized in that a battery installation cavity is provided inside the door, and a locking mechanism is provided inside the battery installation cavity and the battery to enable the battery to be locked It is connected to the battery installation cavity; an unlocking button is also provided on the inside of the door, and the unlocking button can unlock the clamping mechanism so that the battery can be taken out of the battery installation cavity.
The car door system controlled through a wireless network according to claim 14, 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 battery When installed in the cavity, the electrode contacts contact the electrode spring pieces and are electrically connected.
The car door system controlled through a wireless network according to claim 13, characterized in that the battery is further equipped with a power monitoring device, the power monitoring device can monitor the remaining power of the battery, and the power monitoring device communicates with the battery through a wiring harness. The battery is electrically connected to the sub-controller, and the remaining power information of the battery is fed back to the sub-controller.
The car door system controlled through a wireless network according to claim 16, characterized in that the battery is further provided with a power display device, the power display device is arranged inside the door, and the power display device is electrically connected to the sub-controller. connection, the remaining power of the battery can be displayed through the display interface.
The car door system controlled through a wireless network according to claim 17, characterized in that the battery is also equipped with a power alarm device, the power alarm device is electrically connected to the sub-controller, and the sub-controller is configured with the The alarm value of the remaining battery power. When the remaining power of the battery is lower than the alarm value, the sub-controller sends an alarm message through the power display device, and/or the sub-controller sends the alarm signal through The wireless network feeds back to the main controller, and the main controller sends alarm information through the car display terminal.
The vehicle door system controlled through a wireless network according to claim 13, 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 car door system controlled through a wireless network according to claim 15, characterized in that a wireless charging coil is provided on the battery, and the wireless charging coil is electrically connected to the electrode contact.
The car door system controlled through a wireless network according to any one of claims 13 to 20, characterized in that the batteries in each of the car doors are all the same.