Vehicle control device and system based on original vehicle key

Abstract

The embodiment of the invention relates to the field of automobile intelligent control, and discloses a vehicle control device and system based on an original vehicle key, and the device specifically comprises a vehicle control host installed in a vehicle, and a communication host and an integrated key control module which are respectively connected with the vehicle control host; the communication host is used for receiving a control instruction sent by the mobile terminal and forwarding the control instruction to the vehicle control host; the vehicle control host is used for sending a corresponding control signal to the integrated key control module according to the control instruction; the integrated key control module comprises an original car key circuit board and an ejector pin circuit board. And the thimble circuit board is used for triggering a target function contact in the function contacts of the original vehicle key circuit board according to the control signal so as to control the target function of the vehicle. According to the scheme of the embodiment, a user can convert the mechanical action of using the original vehicle key into the digital signal controlled by the control instruction sent by the user terminal, so that the intelligent control of the vehicle can be realized, and the user experience is improved.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of automobile intelligent control, and in particular to a vehicle control device and system based on an original vehicle key. Background Art

[0002] With the development of intelligent technology, users' demand for intelligent vehicle control is increasing. However, many early-production cars lack open communication protocols and interfaces and cannot be directly connected to external control modules, so remote control functions such as unlocking, unlocking or opening the trunk cannot be achieved through devices such as smartphones. These vehicles can usually only be operated with traditional physical keys. This limitation not only reduces the intelligence level of the vehicle, but also affects the convenience and operating experience of users.

[0003] In recent years, digital key technology has been widely used as an advanced solution. Digital keys use the wireless communication functions of smartphones or other mobile devices (such as Bluetooth, near-field communication, etc.) to enable users to remotely control the car through their mobile devices, such as unlocking and unlocking, which greatly improves the intelligence of the vehicle and the user experience. However, since early-production vehicles did not have such smart modules pre-installed, early-production vehicles still could not enjoy this smart control function. Summary of the invention

[0004] The purpose of the embodiments of the present invention is to provide a vehicle control device and system based on the original vehicle key, which utilizes the original vehicle key circuit board and the ejector pin circuit board to construct an integrated key control module, and based on the communication connection between the communication host module, the vehicle control host module and the integrated key control module, enables the user to directly issue instructions to the integrated key control module through a mobile terminal, thereby directly controlling the vehicle to perform corresponding functions through the mobile terminal, solving the problem that early-produced vehicles cannot be intelligently controlled through mobile phones because they do not have pre-installed intelligent control modules.

[0005] To solve the above technical problems, an embodiment of the present invention provides a vehicle intelligent control device based on an original vehicle key, comprising: a vehicle control host module installed inside a vehicle, and a communication host module and an integrated key control module respectively connected to the vehicle control host module; the communication host module is used to receive control instructions issued by a mobile terminal and forward them to the vehicle control host module; the vehicle control host module is used to send a corresponding control signal to the integrated key control module according to the control instruction; the integrated key control module comprises: an original vehicle key circuit board and a ejector circuit board; the ejector circuit board is used to trigger a target function contact among the function contacts of the original vehicle key circuit board according to the control signal, so as to control the target function of the vehicle.

[0006] An embodiment of the present invention further relates to a vehicle control system based on an original vehicle key, including the vehicle control device based on the original vehicle key as described above.

[0007] In an embodiment of the present invention, intelligent control of the vehicle is achieved by installing a vehicle control host module and a communication host module and an integrated key control module connected to the vehicle control host module respectively inside the vehicle. The user can wirelessly connect to the communication host module in the vehicle through a mobile phone and send a control instruction to the communication host module, which is used to instruct the car to perform a specific action to achieve a specific target function. The communication host module forwards the control instruction to the vehicle control host module, which parses the control instruction and determines the control function that the control instruction wants to achieve and sends a control signal matching the target function that the control instruction wants to achieve to the integrated key control module based on the control instruction; the integrated key control module includes: an original car key circuit board and a ejector circuit board; after the ejector circuit board receives the control signal from the vehicle control host module, it triggers the target function contact in the function contact of the original car key circuit board to achieve the control of the target function of the vehicle; wherein, the target function contact can achieve the target function that the control instruction wants to achieve, that is, the control instruction corresponds to the target function. That is to say, in this embodiment, a specific control instruction is sent through the user's mobile phone so that the target function contact matching the control instruction in the original car key circuit board is triggered, and the original car key circuit board sends a corresponding signal to the vehicle to control the car to perform a corresponding action, so that the user can convert the mechanical action of using the original car key into a digital signal controlled by sending a command request through the user's mobile phone (mobile terminal), thereby realizing intelligent control of the vehicle and improving the user experience.

[0008] In addition, the communication host module as described above is also used to connect to the digital key cloud, perform identity authentication, and obtain an identity authentication result; the identity authentication is at least used to verify whether the mobile terminal has the authority to send the control instruction.

[0009] In addition, the communication host module as described above is also used to parse the control instruction, obtain the information of the mobile terminal, and verify whether the control instruction is valid according to the identity authentication result.

[0010] In addition, the integrated key control module as described above also includes: a fixed base and a shell; the fixed base is located between the original car key circuit board and the ejector circuit board, and is used to fix the original car key circuit board and the ejector circuit board, and the structure composed of the fixed base, the original car key circuit board and the ejector circuit board is installed as a whole in the shell.

[0011] In addition, the functional contacts as described above include any one of power supply contacts, locking contacts, unlocking contacts, trunk contacts, vehicle search contacts, and start contacts, or any combination thereof.

[0012] In addition, the ejector pin circuit board as described above includes a plurality of ejector pins facing the functional contacts one by one; the ejector pin circuit board is used to trigger the functional contacts of the original vehicle key circuit board according to the control signal, including: the ejector pin circuit board is used to determine a target ejector pin among the plurality of ejector pins according to the control signal, and control the target ejector pin to contact the target functional contact facing the target ejector pin.

[0013] In addition, the ejector circuit board as described above further comprises a spring member; the spring member is used to eject the target ejector pin so that the target ejector pin contacts the facing target functional contact point.

[0014] In addition, the original car key circuit board as described above includes an MCU and a radio frequency unit; the MCU is used to detect the signal state of the functional contacts, and instruct the radio frequency unit to work when it is detected that the signal state of the target functional contacts is triggered; the radio frequency unit is used to send a specified frequency band signal to the vehicle, so that the vehicle performs an action corresponding to the target function.

[0015] In addition, the communication host module as described above has 4G communication capability, Bluetooth communication capability and GPS / GNSS positioning capability, and is used to wirelessly communicate with the mobile terminal via Bluetooth / 4G to receive the control instruction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0017] Figure 1 is a schematic structural diagram of a vehicle control device based on an original vehicle key provided in an embodiment of the present invention; Figure 2 Schematic diagram of the structure of an integrated key control module of a vehicle control device based on an original vehicle key provided in an embodiment of the present invention.

[0018] Figure 3 It is a schematic structural diagram of an ejector circuit board of a vehicle control device based on an original vehicle key provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. However, it can be understood by those skilled in the art that in the embodiments of the present invention, many technical details are proposed in order to enable the reader to better understand the present invention. However, even without these technical details and various changes and modifications based on the following embodiments, the technical scheme claimed in the present invention can also be implemented. The division of the following embodiments is for the convenience of description and should not constitute any limitation on the specific implementation of the present invention. The various embodiments can be combined and referenced with each other under the premise of no contradiction.

[0020] In the prior art, the early-produced vehicles are not pre-installed with such intelligent modules that users can remotely control through mobile devices, such as unlocking and unlocking, so the early-produced vehicles cannot enjoy this intelligent control function. In order to solve the above problems, the present invention provides a vehicle control device based on the original car key, which uses the original car key circuit board and the ejector circuit board to construct an integrated key control module, and based on the communication connection between the communication host module, the vehicle control host module and the integrated key control module, the user can directly send instructions to the integrated key control module through the mobile phone, so as to directly control the vehicle to perform the corresponding function through the mobile phone, which solves the problem that the early-produced vehicles cannot realize intelligent control through the mobile phone because they do not have a pre-installed intelligent control module. The technical solution of the present invention is further explained below through multiple embodiments.

[0021] An embodiment of the present invention relates to a vehicle control device based on an original vehicle key, such as Figure 1 As shown, it includes: a vehicle control host module installed inside the vehicle, and a communication host module and an integrated key control module respectively connected to the vehicle control host module; the communication host module is used to receive control instructions sent by the mobile terminal and forward them to the vehicle control host; the vehicle control host module is used to send corresponding control signals to the integrated key control module according to the control instructions; the integrated key control module includes: an original vehicle key circuit board and an ejector circuit board; the ejector circuit board is used to trigger the target function contacts among the function contacts of the original vehicle key circuit board according to the control signal, so as to realize the control of the target function of the vehicle.

[0022] Specifically, the communication host module is connected and communicated with the vehicle control host module, and the vehicle control host module is connected and communicated with the integrated key control module. The user issues a control instruction through the mobile terminal, and the communication host module installed inside the vehicle receives the control instruction sent by the mobile terminal and responds. The communication host module has 4G communication capability, Bluetooth communication capability and GPS / GNSS positioning capability. The user can use the Bluetooth of the mobile terminal to wirelessly connect with the communication host module, thereby issuing a control instruction to the communication host module. The control instruction can be: unlocking, locking, finding the car, the trunk, starting, etc. The present invention does not make specific restrictions on this. It should be noted that when the user issues a control instruction through the mobile terminal, the distance between the mobile terminal and the vehicle needs to be within a preset range for the communication host module to receive the control instruction. The preset range can be within the range of 0-100 meters, and the present invention does not make specific restrictions on this.

[0023] After receiving the control instruction from the mobile terminal, the communication host module parses the control instruction and forwards the control instruction to the vehicle control host module when confirming that the current control instruction can be executed. The vehicle control host module can determine the specific function that the user currently requests to control (such as unlocking, locking, finding the car, trunk, starting, etc.) based on the control instruction. At this time, the function is the target function. Therefore, the vehicle control host module transmits a control signal to the integrated key control module, and the control signal corresponds to the target function that the user currently requests to control, that is, the control signal corresponds to the control instruction.

[0024] The integrated key control module includes an original car key circuit board and an ejector circuit board. The ejector circuit board is used to trigger the target function contact in the function contacts of the original car key circuit board according to the control signal to realize the control of the target function of the vehicle. The original car key is a mechanical key produced by the main engine factory or authorized by the main engine factory and matched with the vehicle when the user purchases the vehicle. It can realize the functions of unlocking and unlocking by pressing the button. The essence of the original car key's key control of the vehicle is to trigger the function contacts in the original car key circuit board by pressing the button so that the original car key sends different signals to the vehicle to realize the corresponding function control. It should be noted that each function corresponds to a different function contact. When the function to be realized by the control instruction issued by the user is taken as the target function, the contact responsible for realizing the function is the target function contact. The integrated key control module of this scheme is based on the original car key circuit board and the ejector circuit board. The ejector circuit board can trigger the target function contact in the function contacts of the original car key circuit board according to the control signal to realize the control of the target function of the vehicle.

[0025] It should be noted that in actual applications, the vehicle control host module, communication host module and integrated key control module in this embodiment can be integrated into an integrated machine and installed in the vehicle, or they can exist and communicate in the form of independent module hosts. The present invention does not impose specific restrictions on this. Figure 1 A schematic diagram of the structure in which the vehicle control host module, the communication host module and the integrated key control module communicate in the form of independent module hosts is provided for illustration only and does not constitute any limitation to the present invention.

[0026] Compared with the related art, the embodiment of the present invention realizes intelligent control of the vehicle by installing a vehicle control host module inside the vehicle and a communication host module and an integrated key control module respectively connected to the vehicle control host module. The user can connect the communication host module in the vehicle through Bluetooth via a mobile phone and send a control instruction to the communication host module, which is used to instruct the car to perform a specific action to achieve a specific target function. The communication host module forwards the control instruction to the vehicle control host module, which parses the control instruction and determines the control function that the control instruction wants to achieve and sends a control signal matching the target function that the control instruction wants to achieve to the integrated key control module based on the control instruction; the integrated key control module includes: an original car key circuit board and an ejector circuit board; after the ejector circuit board receives the control signal from the vehicle control host module, it triggers the target function contact in the function contact of the original car key circuit board to achieve the control of the target function of the vehicle; wherein, the target function contact can achieve the target function that the control instruction wants to achieve, that is, the control instruction corresponds to the target function. That is to say, in this embodiment, a specific control instruction is sent through the user's mobile phone so that the target function contact in the original car key circuit board that matches the control instruction is triggered, and the original car key circuit board sends a corresponding signal to the vehicle to control the car to perform a corresponding action, so that the user can convert the mechanical action of using the original car key into a digital signal controlled by sending a control instruction through the mobile phone, thereby realizing intelligent control of the vehicle and improving the user experience.

[0027] Another embodiment of the present invention relates to a vehicle control device based on an original vehicle key. This embodiment supplements and refines the above-mentioned embodiment, and is specifically described as follows.

[0028] In one example, the communication host module is also used to connect to the digital key cloud, perform identity authentication, and obtain an identity authentication result; wherein the identity authentication is at least used to verify whether the mobile terminal has the authority to send control instructions.

[0029] Specifically, before a user can send a control instruction to the communication host module through a mobile terminal, the user needs to pre-install an APP that can send a control instruction to the communication host module on the mobile terminal, and communicate with the digital key cloud by logging in to the APP. The digital key cloud stores the information of the mobile terminal, such as ID information, unique identification code, etc. after performing relevant verification on the identity of the mobile terminal. The communication host module is connected to the digital key cloud online. When the communication host module receives a control instruction sent by the mobile terminal, the control instruction carries the information of the mobile terminal. The communication host module performs identity authentication to the digital key cloud according to the received control instruction. The digital key cloud verifies whether the cloud stores the information of the mobile terminal, that is, verifies whether the mobile terminal has the authority to send the control instruction. If the mobile terminal has the authority to send the control instruction, it can also verify the authority level and the validity period of the authority and other related authority information. After verification, the communication host module records the identity authentication result: the mobile terminal has the authority or the mobile terminal has no authority. If the mobile terminal continues to send instructions to the communication host module, the communication host module can directly verify the control instruction according to the recorded result without having to verify it again to the cloud. Even in the offline situation where the communication host module cannot be connected to the digital key cloud, the mobile terminal can also control the vehicle.

[0030] Correspondingly, the communication host module is also used to parse the control instruction, obtain the information of the mobile terminal, and verify whether the control instruction is valid according to the identity authentication result.

[0031] Specifically, when the communication host module receives a control instruction from a user's mobile terminal, it can parse the information of the mobile terminal that currently sends the instruction and compare it with the identity authentication result obtained during identity authentication. If the communication host module finds that the current mobile terminal has the authority to send control instructions, it will forward the control instruction to the vehicle control host module; if it finds that the current mobile terminal does not have the authority to send control instructions, it will not forward the control instruction and other processing. By adding pre-authentication to the received control instructions, it can ensure that the communication host module will not execute the control instructions of other users (mobile terminals), thereby enhancing the safety of vehicle control.

[0032] In addition, the vehicle control host module and the communication host module can communicate using UART (asynchronous serial communication mode), which is a universal serial data bus used for asynchronous communication. The bus has bidirectional communication and can achieve full-duplex transmission and reception. In addition, the vehicle control host module and the communication host module can also use SPI (Serial Peripheral interface, serial peripheral device interface), I²C (Inter-Integrated Circuit, internal integrated circuit) and other communication methods, and the present invention does not make specific restrictions on this.

[0033] In another example, the integrated key control module also includes: a fixed base and a shell; the fixed base is located between the original car key circuit board and the ejector circuit board, and is used to fix the connection between the original car key circuit board and the ejector circuit board, and the structure composed of the fixed base, the original car key circuit board and the ejector circuit board is installed as a whole in the shell.

[0034] Specifically, Figure 2 As shown, the shell can be divided into an upper shell and a lower shell, and the integrated key control module as a whole may include an upper shell, an original car key circuit board, a fixed base, an ejector circuit board, and a lower shell. The upper shell and the lower shell constitute the fixed base of the shell, which is located between the original car key circuit board and the ejector circuit board, and is used to fix the connection between the original car key circuit board and the ejector circuit board. The structure composed of the fixed base, the original car key circuit board and the ejector circuit board is installed in the shell as a whole to form a complete integrated key control module. Among them, the upper part of the fixed base is used to fix the original car key circuit board, which needs to be adjusted according to the size of the key, and the lower part of the fixed base is connected to the ejector circuit board; the ejector in the ejector circuit board can trigger the functional contact by accurately contacting the corresponding functional contact through the fixed base upon receiving the control signal.

[0035] In one example, the functional contacts include any one of power supply contacts, locking contacts, unlocking contacts, trunk contacts, vehicle search contacts, and start contacts, or any combination thereof.

[0036] Specifically, there are usually two power supply contacts and one other functional contact. Only when the original car key circuit board has specific functional contacts can the user control the corresponding functions through the mobile phone. For example, when the locking contact is triggered, the vehicle is locked, and when the unlocking contact is triggered, the vehicle is unlocked.

[0037] In another example, the ejector pin circuit board includes multiple ejector pins that are opposite to the functional contacts one by one; the ejector pin circuit board is used to trigger the functional contacts of the original vehicle key circuit board according to the control signal, including: the ejector pin circuit board is used to determine the target ejector pin among the multiple ejector pins according to the control signal, and control the target ejector pin to contact the target functional contact opposite to the target ejector pin.

[0038] It should be noted that before designing the integrated key control module, it is necessary to test and determine the corresponding function of each functional contact on the original car key circuit board. Only by determining the corresponding function of each contact can we know the functional contact that can be triggered by popping out each ejector pin when programming the ejector pin circuit board, that is, determine the control function that can be achieved by popping out each ejector pin.

[0039] Specifically, the specific structure of the ejector circuit board can be as follows Figure 3As shown, the ejector circuit board has a plurality of ejectors with the same number of functional contacts as the original car key circuit board, and after being fixed by the fixed base, each ejector is directly opposite to (but not in contact with) a functional contact on the original car key circuit board. The ejector circuit board is connected to the vehicle control host module through a signal line, and the ejector circuit board receives a control signal from the vehicle control host module. If the control signal is to control the triggering of the unlocking function, the ejector circuit board controls the ejector directly opposite to the unlocking contact to contact with the unlocking contact to trigger the unlocking contact. At this time, the ejector directly opposite to the unlocking contact is the target functional contact. It should be noted that different control signals correspond to different target ejectors and can trigger different target functional contacts. The ejector circuit board also includes a spring member (not shown in the figure); each ejector has a spring member for ejecting the ejector, and the spring member is specifically used to eject the target ejector when the ejector circuit board controls the target ejector to contact with the target functional contact directly opposite to the target ejector, so as to achieve the target ejector contacting with the target functional contact directly opposite.

[0040] In another example, the original car key circuit board includes an MCU (Microcontroller Unit) and a radio frequency unit; the MCU is used to detect the signal status of the functional contacts, and instruct the radio frequency unit to work when it detects that the signal status of the target functional contacts is triggered; the radio frequency unit is used to send a specified frequency band signal to the vehicle, so that the vehicle performs actions corresponding to the target function.

[0041] Specifically, the control function of the original car key is mainly composed of a radio frequency unit located inside the key and a receiver located on the vehicle. Taking the unlocking function as an example, when the owner enters the coverage range of the remote control key signal and presses the button to trigger the unlocking contact on the original car key circuit board, the radio frequency unit will send out a signal of a specific frequency band. The receiver on the vehicle will mediate and match the signal after receiving it. When the signal matches, the receiver will energize the relay on the door lock to complete the unlocking action. Since this solution uses a pin to trigger the functional contact instead of a button, the MCU is used to continuously detect the signal status of each functional contact. When it is detected that the signal status of a functional contact is triggered (the triggered one is the target functional contact), the MCU on the original car key circuit board instructs the radio frequency unit to work. The radio frequency unit is used to send a specified frequency band signal to the vehicle, so that the vehicle performs the action corresponding to the target function.

[0042] In order to facilitate the understanding of the above embodiments of the present invention, the specific implementation of the present solution is systematically described here by way of example, taking the unlocking function as an example. User A first uses a mobile terminal to pair and connect with the communication host module of user vehicle B via Bluetooth, and clicks the word "unlock" in the interface of the mobile terminal's designated APP. At this time, the mobile terminal will send a control instruction for unlocking to user vehicle B. The communication host module of user vehicle B receives the control instruction, parses the mobile terminal information of user A, and the communication host module determines that user A's mobile terminal has the authority to send the control instruction. If it has the authority (within the validity period), the communication host module forwards the current control instruction for unlocking to the vehicle control host module. The vehicle control host module parses the currently received control instruction and determines that the target function that the user wants to achieve this time is the unlocking function, that is, determines that the unlocking contact is the target function contact, and the ejector pin facing the unlocking contact is the target ejector pin. Therefore, the vehicle control host module transmits a control signal for controlling the ejection of the target ejector pin to the integrated key control module (ejector pin circuit board), so that the ejector pin facing the unlocking contact pops up and triggers the unlocking contact. When the MCU on the original car key circuit board detects that the signal state of the unlocking contact has changed to being triggered, the MCU instructs the RF unit to work. The RF unit is used to send a specified frequency band signal to the vehicle. The receiver on the vehicle will mediate and match the signal after receiving it. When the signals match, the receiver will energize the relay on the door lock to complete the unlocking action.

[0043] Compared with the related art, the embodiment of the present invention makes secondary improvements to the layout of the original car key circuit board, designs and uses a pin circuit board structure to form an integrated key control module installed in the vehicle, so that the control signal sent by the mobile device can be converted into an actual digital signal, thereby controlling the vehicle's unlocking, unlocking and trunk functions. Beneficial effects include: This solution can be applied to early-production vehicles without replacing the original system of the vehicle, so that these vehicles have functions similar to modern smart keys. Users can operate through mobile devices such as mobile phones without relying on traditional physical keys, which greatly improves the convenience and intelligence of operation.

[0044] The embodiment of the present invention also relates to a vehicle control system based on an original vehicle key, which at least includes a vehicle control device based on an original vehicle key as described in any of the above embodiments. The specific details of the vehicle control device based on the original vehicle key have been recorded in the above embodiments, and the present invention will not be repeated here.

[0045] Those skilled in the art will appreciate that the above embodiments are specific embodiments for implementing the present invention, and that in actual applications, various changes may be made in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A vehicle control device based on an original vehicle key, characterized in that: include: A vehicle control host module installed inside the vehicle, and a communication host module and an integrated key control module respectively connected to the vehicle control host module; The communication host module is used to receive the control instruction sent by the mobile terminal, and forward the control instruction to the vehicle control host module after verifying that the control instruction is valid; The vehicle control host module is used to send a corresponding control signal to the integrated key control module according to the control instruction; The integrated key control module includes: an original vehicle key circuit board and an ejector circuit board; the ejector circuit board is used to trigger a target function contact among the function contacts of the original vehicle key circuit board according to the control signal, so as to control the target function of the vehicle; The communication host module is also used to connect to the digital key cloud, perform identity authentication, and obtain an identity authentication result; the identity authentication is at least used to verify whether the mobile terminal has the authority to send the control instruction.

2. The vehicle control device based on the original vehicle key according to claim 1, characterized in that: The communication host module is also used to parse the control instruction, obtain the information of the mobile terminal, and verify whether the control instruction is valid according to the identity authentication result.

3. The vehicle control device based on the original vehicle key according to claim 1, characterized in that: The integrated key control module further includes: a fixed base and a housing; The fixed base is located between the original car key circuit board and the ejector circuit board, and is used to fix the original car key circuit board and the ejector circuit board. The structure formed by the fixed base, the original car key circuit board and the ejector circuit board is installed as a whole in the shell.

4. The vehicle control device based on the original vehicle key according to claim 1, characterized in that: The functional contacts include any one of a power supply contact, a locking contact, an unlocking contact, a trunk contact, a vehicle search contact, and a start contact, or any combination thereof.

5. The vehicle control device based on the original vehicle key according to claim 4, characterized in that: The ejector pin circuit board includes a plurality of ejector pins facing the functional contacts one by one; The ejector circuit board is used to trigger a target functional contact among the functional contacts of the original vehicle key circuit board according to the control signal, and includes: The ejector pin circuit board is used to determine a target ejector pin among a plurality of ejector pins according to the control signal, and control the target ejector pin to contact with the target functional contact point directly facing the target ejector pin.

6. The vehicle control device based on the original vehicle key according to claim 5, characterized in that: The ejector circuit board further comprises a spring member; the spring member is used to eject the target ejector so that the target ejector contacts the facing target functional contact.

7. The vehicle control device based on the original vehicle key according to claim 5, characterized in that: The original car key circuit board includes an MCU and a radio frequency unit; The MCU is used to detect the signal state of the functional contact, and instruct the radio frequency unit to work when it is detected that the signal state of the target functional contact is triggered; The radio frequency unit is used to send a designated frequency band signal to the vehicle, so that the vehicle performs an action corresponding to achieving the target function.

8. The vehicle control device based on the original vehicle key according to claim 1, characterized in that: The communication host module has 4G communication capability, Bluetooth communication capability and GPS / GNSS positioning capability, and is used to wirelessly communicate with the mobile terminal via Bluetooth / 4G to receive the control instruction.

9. A vehicle control system based on an original vehicle key, characterized in that: It comprises a vehicle control device based on the original vehicle key as described in any one of claims 1-8.

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