Vehicle control method and system based on auxiliary factory key

Abstract

The embodiment of the invention relates to the field of automobile intelligent control, and discloses a vehicle control method and system based on an auxiliary factory key, and the method comprises the steps that a communication host module receives a control instruction sent by a mobile terminal for a specified function, and forwards the control instruction to a vehicle control host module after verifying that the control instruction is valid; the vehicle control host module analyzes the control instruction and sends a preset level signal to a control pin of the auxiliary factory key module according to the control instruction, and the control pin controls a group of function pins corresponding to the specified function in the auxiliary factory key module to be communicated according to the preset level signal; and the auxiliary factory key module sends a control signal for executing the specified function to the vehicle when the function pin is connected. According to the scheme, a user can directly control the vehicle through the digital signal sent by the mobile phone, intelligent control over the vehicle is achieved, and the user experience feeling is improved.

Description

Technical Field

[0001] The present invention relates to the field of automobile intelligent control, and in particular to a vehicle control method and system based on a secondary factory 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 user's operating experience.

[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, NFC, etc.) to enable users to remotely control the car through 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 method and system based on a secondary factory key. By customizing the secondary factory key module, based on the data interaction between the communication host module, the vehicle control host module and the secondary factory key module, the user can directly send instructions to the secondary factory key module through a mobile phone, so as to directly control the vehicle to execute corresponding functions through the mobile phone, thereby 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 control method based on a secondary factory key, which is applied to a vehicle control system based on a secondary factory key. The system includes a communication host module, a vehicle control host module and a secondary factory key module. The method includes: The communication host module receives the control instruction issued by the mobile terminal for the designated function, and forwards it to the vehicle control host module after verifying that the control instruction is valid; the vehicle control host module parses the control instruction, and sends a preset level signal to the control pin of the accessory key module according to the control instruction, and the control pin controls a group of function pins corresponding to the designated function in the accessory key module to be connected according to the preset level signal; the accessory key module sends a control signal to the vehicle to execute the designated function when the function pin is connected.

[0006] In addition, the accessory key module in the system as described above includes: an accessory key and a connector for connecting the accessory key and the vehicle control host module. Before the communication host module receives the control instruction issued by the mobile terminal for the designated function, the method further includes: pairing and binding the accessory key with the vehicle, and after binding, the accessory key has the same control authority as the original vehicle key; wherein each of the control functions of the accessory key is respectively mapped to each group of the function pins of the connector.

[0007] In addition, the communication host module as described above verifies the control instruction, including: the communication host module parses the control instruction to obtain mobile terminal information; when the identity authentication result of the mobile terminal is not stored inside the communication host module, obtains the identity authentication result from the digital key cloud, and the identity authentication result is at least used to verify whether the mobile terminal has the control authority to send the control instruction; the communication host module verifies whether the control instruction is valid based on the identity authentication result.

[0008] In addition, the communication host module as described above has 4G communication capability, Bluetooth communication capability and GPS / GNSS positioning capability, and is wirelessly connected to the mobile terminal via Bluetooth to receive the control command.

[0009] In addition, the method as described above also includes: the communication host module receives the first permission instruction of the mobile terminal and forwards it to the vehicle control host module; the vehicle control host module sends a first permission signal to the first enable pin of the connector according to the first permission instruction, and the first enable pin disables / enables one of the control functions according to the first permission signal.

[0010] In addition, the method as described above also includes: the communication host module receives the second permission instruction of the mobile terminal and forwards it to the vehicle control host module; the vehicle control host module sends a second permission signal to the second enable pin of the connector according to the second permission instruction, and the second enable pin disables / enables the vehicle's intelligent keyless entry function according to the second permission signal.

[0011] Another embodiment of the present invention also relates to a vehicle control system based on a secondary factory key, comprising: a communication host module, a vehicle control host module and a secondary factory key module; the communication host module is used to receive a control instruction issued by the mobile terminal for a specified function, and forward it to the vehicle control host module after verifying that the control instruction is valid; the vehicle control host module is used to parse the control instruction, and send a preset level signal to the control pin of the secondary factory key module according to the control instruction, so that the control pin controls a group of function pins corresponding to the specified function in the secondary factory key module to be connected according to the preset level signal; the secondary factory key module is used to send a control signal to the vehicle to execute the specified function when the function pin is connected.

[0012] In addition, the accessory key module as described above includes: an accessory key and a connector for connecting the accessory key with the vehicle control host module; the connector is provided with a plurality of control pins and a plurality of groups of function pins, and each group of function pins is used to implement a control function according to the control of the control pins.

[0013] In addition, a first enable pin is also provided on the connector as described above; the communication host module is also used to receive the permission instruction of the mobile terminal and forward it to the vehicle control host module; the vehicle control host module is used to send an permission control signal to the enable pin of the secondary factory key module according to the permission instruction, and the enable pin disables / enables one of the control functions according to the permission control signal.

[0014] In addition, a second enable pin is also provided on the connector as described above; the communication host module is used to receive the second authority instruction of the mobile terminal and forward it to the vehicle control host module; the vehicle control host module is used to send a second authority signal to the second enable pin according to the second authority instruction, and the second enable pin disables / enables the vehicle's intelligent keyless entry function according to the second authority signal.

[0015] The vehicle control method based on the accessory key in the embodiment of the present invention is applied to the vehicle control system based on the accessory key, and the system includes a communication host module, a vehicle control host module and an accessory key module. The method of this embodiment includes: the user can send a control instruction to the communication host module through a mobile terminal, the communication host module receives the control instruction issued by the mobile terminal for the specified function, and forwards it to the vehicle control host module after verifying that the control instruction is valid; the vehicle control host module parses the control instruction, sends a preset level signal to the control pin of the accessory key module according to the control instruction, and the control pin controls a group of function pins corresponding to the specified function in the accessory key module to be connected according to the preset level signal; the accessory key module sends a control signal to the vehicle to execute the specified function according to the connectivity of the function pin. That is to say, in this embodiment, by receiving the control instruction issued by the mobile terminal for the specified function, the vehicle control host module sends a preset level signal to the control pin of the accessory key module according to the control instruction after verifying that the control instruction is valid, and the control pin controls a group of function pins corresponding to the specified function to be connected according to the preset level signal, thereby sending a control signal to the vehicle to execute the specified function, so as to realize intelligent control of the vehicle and improve the user experience. 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 flow chart of a vehicle control method based on a secondary factory key provided in an embodiment of the present invention; Figure 2 is a flow chart of a vehicle control method based on a secondary factory key provided in another embodiment of the present invention; Figure 3 is a schematic structural diagram of a vehicle control system based on a secondary factory key provided in an embodiment of the present invention; Figure 4 is a schematic structural diagram of a secondary factory key module provided in an embodiment of the present invention; Figure 5 The structure of the connector provided in the embodiment of the present invention is shown in FIG. Figure 1 ; Figure 6 The structure of the connector provided in the embodiment of the present invention is shown in FIG. Figure 2 . DETAILED DESCRIPTION

[0018] 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.

[0019] The embodiment of the present invention realizes intelligent control through a vehicle control system based on a secondary factory key installed inside the vehicle, and by receiving and parsing a control instruction for realizing a specified function sent by a mobile terminal, the secondary factory key module sends a control signal to the vehicle to execute the specified function, thereby realizing intelligent control of the vehicle, so that vehicles without pre-installed intelligent control modules can also enjoy the function of intelligent control, thereby improving the convenience of vehicle use. The technical solution of the present invention is further explained through multiple embodiments below.

[0020] An embodiment of the present invention relates to a vehicle control method based on a secondary factory key, which is specifically applied to a vehicle control system based on a secondary factory key. The system includes a communication host module, a vehicle control host module and a secondary factory key module. On this basis, Figure 1 As shown, the method of this embodiment specifically includes the following steps 101-103: Step 101: The communication host module receives a control instruction for a designated function issued by a mobile terminal, and forwards it to the vehicle control host module after verifying that the control instruction is valid.

[0021] Specifically, the user can use the mobile terminal to pair with the vehicle through Bluetooth or other wireless communication connection methods, and then send a control instruction to the vehicle control system based on the secondary factory key pre-installed in the vehicle. The control instruction is used to enable the vehicle to realize specified functions, such as unlocking, locking, finding the vehicle, the trunk, starting, etc. This embodiment does not impose specific restrictions on this. In the vehicle control system based on the secondary factory key, the vehicle control host module is connected to the communication host module and the secondary factory key module for communication. The communication host module receives the control instruction sent by the mobile terminal and responds to the control instruction after verification. It should be noted that when the user sends 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 0-300 meters. This embodiment does not impose specific restrictions on this. It should be noted that the vehicle control host module and the communication host module can communicate using UART (asynchronous serial communication mode). UART is a universal serial data bus used for asynchronous communication. The bus communicates bidirectionally and can achieve full-duplex transmission and reception. In addition, the vehicle control host module and the communication host module may also adopt 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.

[0022] Step 102: The vehicle control host module parses the control instruction, and sends a preset level signal to the control pin of the accessory key module according to the control instruction. The control pin controls a group of function pins corresponding to the specified function in the accessory key module to be connected according to the preset level signal.

[0023] Specifically, before describing this step, the embodiment first describes the secondary factory key module. The secondary factory key module in this embodiment refers to an integrated module including at least one secondary factory key, and the secondary factory key in this embodiment refers to a PCBA board (Printed Circuit Board Assembly) that is not produced by the original car manufacturer but has the same control function as the original key. The secondary factory key of this embodiment can be obtained by the following method: copy the PCBA board of the original car key with a specified size to obtain a new PCBA board, remove the function buttons in the new PCBA board, and map the functions of each function button (unlock, lock, find the car, trunk, etc.) to external connections and external function pins, and each function can be mapped to two (a group of) function pins. When a group of function pins is connected, it is equivalent to the function key corresponding to the function controlled by the group of function pins in the original car key being pressed. At the same time, a control pin is set for each group of function pins, and each control pin is used to control the connection between the group of function pins corresponding to it.

[0024] After the vehicle control host module receives the control instruction forwarded by the communication host module, the vehicle control host module will know the specified function corresponding to the instruction, and send a preset level signal to the control pin corresponding to the specified function. After receiving the preset level signal, the control pin controls the connection between a group of function pins corresponding to it.

[0025] Step 103: The accessory key module sends a control signal to the vehicle to execute a designated function when the function pins are connected.

[0026] Specifically, the accessory key module detects the connectivity of the internal function pins. When it is detected that a group of function pins are in a connected state, the accessory key module uses the LF antenna or the UHF antenna to send a control signal to the vehicle to enable it to perform a specified function.

[0027] Compared with the related art, the vehicle control method based on the accessory key in the embodiment of the present invention is applied to the vehicle control system based on the accessory key, and the system includes a communication host module, a vehicle control host module and an accessory key module. The method of this embodiment includes: the user can send a control instruction to the communication host module through a mobile terminal, the communication host module receives the control instruction issued by the mobile terminal for the specified function, and forwards it to the vehicle control host module after verifying that the control instruction is valid; the vehicle control host module parses the control instruction, sends a preset level signal to the control pin of the accessory key module according to the control instruction, and the control pin controls the connection of a group of function pins corresponding to the specified function in the accessory key module according to the preset level signal; the accessory key module sends a control signal to the vehicle to execute the specified function according to the connection of the function pin. That is to say, in this embodiment, by receiving the control instruction issued by the mobile terminal for the specified function, the vehicle control host module sends a preset level signal to the control pin of the accessory key module according to the control instruction after verifying that the control instruction is valid, and the control pin controls the connection of two function pins corresponding to the specified function according to the preset level signal, thereby sending a control signal to the vehicle to execute the specified function, so as to realize intelligent control of the vehicle and improve the user experience.

[0028] Another embodiment of the present invention relates to a vehicle control method based on a secondary factory key. This embodiment is a supplement to the aforementioned implementation mode. The method of this embodiment is applied to a vehicle control system based on a secondary factory key. In this system, the secondary factory key module includes: a secondary factory key and a connector for connecting the secondary factory key and a vehicle control host module. On this basis, the method of this embodiment specifically includes the following contents.

[0029] In one example, before step 101 is executed, the method of this embodiment includes: pairing and binding the secondary factory key with the vehicle, so that after binding, the secondary factory key has the same control authority as the original vehicle key; wherein each control function of the secondary factory key is respectively mapped to each group of the function pins of the connector.

[0030] Specifically, the secondary factory key in this embodiment refers to a PCBA board that is not originally produced by the automobile manufacturer and has the same control functions as the original factory key. The secondary factory key can be customized for a specific vehicle, and each control function of the secondary factory key is mapped to each group of functional pins of the connector. After the secondary factory key is customized, if you want to use the secondary factory key to control the vehicle, the vehicle must be able to recognize and execute the control signal sent by the secondary factory key. Therefore, after the customization of the secondary factory key is completed, the secondary factory key is matched with the vehicle as the "third key" so that the secondary factory key and the vehicle can be bound, so that the vehicle can be controlled. This embodiment does not impose specific restrictions on the specific pairing and binding process between the secondary factory key and the vehicle. Different vehicle manufacturers will formulate different matching processes, and matching and binding can be performed according to the actual process in the application process.

[0031] In another example, Figure 2 As shown, the process of the communication host module verifying the control instruction in step 101 specifically includes the following steps 1011-1013: Step 1011: the communication host module parses the control instruction to obtain the mobile terminal information; Step 1012: when the identity authentication result of the mobile terminal is not stored in the communication host module, obtaining the identity authentication result from the digital key cloud, where the identity authentication result is at least used to verify whether the mobile terminal has the control authority to send the control instruction; Step 1013: The communication host module verifies whether the control instruction is valid according to the identity authentication result.

[0032] Specifically, in this embodiment, it is necessary to install a specific APP to issue a control instruction to the vehicle through the APP, and the server of the APP can communicate with the digital key cloud. In the case of networking, after the user issues a control instruction for the first time through the mobile terminal, the control instruction will be forwarded to the digital key cloud first. The control instruction carries at least the mobile terminal information and the vehicle owner information. The digital key cloud performs relevant verification on the identity and authority of the mobile terminal and stores the information of the mobile terminal. The control instruction is then forwarded to the communication host module, which receives and parses the control instruction to obtain the mobile terminal information. Since the mobile terminal issues a control instruction for the first time, the communication host module does not store the identity authentication result of the mobile terminal. The communication host module performs identity authentication with the digital key cloud according to the received control instruction, that is, 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 it is verified that 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.

[0033] After verification, the communication host module records the authentication result: the mobile terminal has permission or the mobile terminal does not have permission. If the communication host module receives a control instruction sent by the mobile terminal next time, the communication host module can directly verify the control instruction based on the identity authentication result of the mobile terminal stored internally, without the need to verify it again with the cloud. Even in the offline situation where the communication host module cannot connect to the digital key cloud, the mobile terminal can still control the vehicle.

[0034] It should be noted that the communication host module has 4G communication capabilities, Bluetooth communication capabilities, and GPS (Global Positioning System) / GNSS (Global Navigation Satellite System) positioning capabilities. Users can use the Bluetooth of the mobile terminal to wirelessly connect to the communication host module, thereby sending control instructions to the communication host module. When the communication host module receives the control instruction sent by the 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 the identity authentication. If the communication host module finds that the current mobile terminal has the authority to send the control instruction, 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 the control instruction, it will not forward the control instruction and other processing. By adding pre-authentication to the received control instruction, 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.

[0035] In another example, the method of this embodiment also includes the following steps: the communication host module receives a first authority instruction from the mobile terminal and forwards it to the vehicle control host module; the vehicle control host module sends a first authority signal to a first enable pin of the secondary factory key module according to the first authority instruction, and the first enable pin disables / enables a control function according to the first authority signal.

[0036] Specifically, the process of the mobile terminal sending the permission instruction and the communication host module receiving and forwarding the permission instruction is the same as the process of processing the control instruction, which can be specifically referred to as step 101 and steps 1011-1013, and this embodiment will not be repeated here.

[0037] In this embodiment, at least one first enabling pin is also provided on the connector in the secondary factory key module. The communication host module receives the first permission instruction of the mobile terminal and forwards it to the vehicle control host module. The first permission instruction is used to disable or enable a certain control function of the mobile phone on the vehicle. The vehicle control host module sends a first permission signal to the first enabling pin corresponding to the permission instruction in the secondary factory key module according to the first permission instruction. The first enabling pin disables / enables a corresponding control function according to the first permission signal. It should be noted that this embodiment does not specifically limit the number of first enabling pins, which can be one or more. Generally, the same number of first enabling pins as the control functions of the secondary factory key can be set.

[0038] In another example, at least one second enable pin is further provided on the connector in the aftermarket key module, and the method of this embodiment may further include the following steps: the communication host module receives the second authority instruction of the mobile terminal and forwards it to the vehicle control host module; the vehicle control host module sends a second authority signal to the second enable pin of the connector according to the second authority instruction, and the second enable pin disables / enables the PKE (Passive Keyless Enter, smart keyless entry for cars) function according to the second authority signal.

[0039] Specifically, the process of the mobile terminal sending the second permission instruction and the communication host module receiving and forwarding the second permission instruction is the same as the process of processing the control instruction, which can be specifically referred to as step 101 and steps 1011-1013, and this embodiment will not be repeated here.

[0040] Compared with the related art, this embodiment sends instructions to the control pin or enable pin set in the accessory key module through the communication host module and the vehicle control host module, and controls the function pin used to realize a certain control function in the accessory key module to be connected, thereby realizing the control of the unlocking, unlocking and trunk functions of the car, and improving the user experience. The vehicle control authority is adjusted by enabling / disabling a certain control function or enabling / disabling the PKE function of the vehicle through the mobile terminal to the enable pin set in the accessory key module, so as to open different control authorities to users according to different usage situations.

[0041] Another embodiment of the present invention relates to a vehicle control system based on a secondary factory key, such as Figure 3 As shown, the vehicle control system based on the secondary factory key in this embodiment includes: a communication host module 201, a vehicle control host module 202 and a secondary factory key module 203; The communication host module 201 is used to receive control instructions issued by the mobile terminal for a specified function, and forward them to the vehicle control host module 202 after verifying that the control instructions are valid; The vehicle control host module 202 is used to parse the control instruction, and send a preset level signal to the control pin in the auxiliary factory key module 203 according to the control instruction, so that the control pin controls a group of function pins corresponding to the specified function in the auxiliary factory key module 203 to be connected according to the preset level signal; The secondary factory key module 203 is used to send a control signal to the vehicle to execute a specified function when the function pins are connected.

[0042] Specifically, the communication host module 201, the vehicle control host module 202 and the secondary factory key module 203 are all arranged inside the vehicle. The three modules can be arranged in a unified device structure or can be arranged separately. This embodiment does not impose specific restrictions on this. The communication host module 201 has 4G communication capability, Bluetooth communication capability and GPS / GNSS positioning capability, and is wirelessly connected to the mobile terminal via Bluetooth to receive control instructions. The vehicle control host module 202 is mainly used to collect vehicle conditions and realize vehicle control capabilities by controlling the secondary factory key module 203. The vehicle control host module 202 is composed of a CAN transceiver (Controller Area Network) transceiver and an MCU. The vehicle control host module 202 uses the CAN transceiver to communicate with the communication host module 201, obtain the control instructions forwarded by the communication host module 201, and send a preset level signal to the control pin in the secondary factory key module 203 through the MCU according to the control instruction, so that the control pin controls a group of function pins corresponding to the specified function in the secondary factory key module according to the preset level signal. The secondary factory key module 203 is used to send a control signal to the vehicle to execute the specified function when a group of function pins corresponding to the specified function are connected inside the module.

[0043] In an example, Figure 4 As shown, the accessory key module includes: an accessory key 2031 and a connector 2032 for connecting the accessory key 2031 and the vehicle control host module 202; the connector 2032 is provided with multiple groups of function pins 2033 and multiple control pins 2034, and each group of function pins 2033 is used to implement a control function according to the control of the control pin 2034.

[0044] Specifically, Figure 4 As shown, the accessory key module includes: an accessory key 2031 and a connector 2032, as well as an MCU and a radio frequency module (not shown in the figure). The MCU of the accessory key module is used to obtain the level signal received by the control pin, and connect a corresponding set of function pins when the level signal of the control pin is a preset level signal. After the connection, the MCU of the accessory key module controls the radio frequency module to send a corresponding control signal to the vehicle. The radio frequency module may include an LF antenna and / or a UHF antenna, and this embodiment does not impose specific restrictions on this. In some cases, multiple control pins 2034 and multiple groups of function pins 2033 can be set on the same connector, or they can be set on different connectors from a cost perspective, for example, Figure 5 As shown, the function pins are set on a 10-pin connector, including five groups of function pins: power, unlock, lock, find the car, and trunk; Figure 6 As shown, the control pins are arranged on a 4-pin connector to send and receive data via the TX and RX pins. It should be noted that the layout style of the connector is only illustrated here and does not constitute any limitation on the connector of this embodiment.

[0045] In another example, a first enable pin is also provided on the connector 2032; the communication host module 201 is also used to receive a first permission instruction from the mobile terminal and forward it to the vehicle control host module 202; the vehicle control host module 202 is used to send a first permission signal to the first enable pin according to the first permission instruction, and the first enable pin disables / enables a control function according to the first permission signal.

[0046] In another example, a second enable pin is also provided on the connector 2032; the communication host module 201 is also used to receive a second permission instruction from the mobile terminal and forward it to the vehicle control host module 202; the vehicle control host module 202 is used to send a second permission signal to the second enable pin according to the second permission instruction, and the second enable pin disables / enables the PKE function according to the second permission signal.

[0047] Compared with the related art, the embodiment of the present invention receives the control instruction issued by the mobile terminal for the specified function. After verifying that the control instruction is valid, the vehicle control host module sends a preset level signal to the control pin of the secondary factory key module according to the control instruction. The control pin controls the connection of the two function pins corresponding to the specified function according to the preset level signal. That is, this solution maps the functions realized by the function buttons in the original car key circuit board to the function pins in the secondary factory key by customizing the secondary factory key. Each group of function pins corresponds to a control function. The control pins that control the connection of the function pins are designed so that the secondary factory key module sends a control signal to the vehicle to execute the specified function according to the connectivity of the function pins, so that the control signal sent by the mobile device can be converted into an actual digital signal, thereby controlling the unlocking, unlocking and trunk functions of the vehicle. Beneficial effects are: 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 level of operation.

[0048] 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 method based on a secondary factory key, applied to a vehicle control system based on a secondary factory key, the system comprising a communication host module, a vehicle control host module and a secondary factory key module, characterized in that: The method comprises: The communication host module receives the control instruction issued by the mobile terminal for the designated function, and forwards it to the vehicle control host module after verifying that the control instruction is valid; The vehicle control host module parses the control instruction, and sends a preset level signal to the control pin of the secondary factory key module according to the control instruction, and the control pin controls a group of function pins corresponding to the specified function in the secondary factory key module to be connected according to the preset level signal; The secondary factory key module sends a control signal to the vehicle to execute the designated function when the function pin is connected.

2. The method according to claim 1, wherein the secondary factory key module comprises: The secondary factory key and the connector for connecting the secondary factory key and the vehicle control host module are characterized in that before the communication host module receives the control instruction issued by the mobile terminal for the specified function, the method further includes: Pairing and binding the secondary factory key with the vehicle, so that after binding, the secondary factory key has the same control authority as the original vehicle key; Wherein, each control function of the secondary factory key is mapped to each group of the function pins of the connector.

3. The method according to claim 1, characterized in that The communication host module verifies the control instruction, including: The communication host module parses the control instruction to obtain mobile terminal information; When the identity authentication result of the mobile terminal is not stored in the communication host module, obtaining the identity authentication result from the digital key cloud, where the identity authentication result is at least used to verify whether the mobile terminal has the control authority to send the control instruction; The communication host module verifies whether the control instruction is valid according to the identity authentication result.

4. The method 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 wirelessly connected to the mobile terminal via Bluetooth to receive the control instructions.

5. The method according to claim 2, characterized in that: The method further comprises: The communication host module receives the first authority instruction of the mobile terminal and forwards it to the vehicle control host module; The vehicle control host module sends a first permission signal to a first enable pin of the connector according to the first permission instruction, and the first enable pin disables / enables one of the control functions according to the first permission signal.

6. The method according to claim 2, characterized in that The method further comprises: The communication host module receives the second authority instruction of the mobile terminal and forwards it to the vehicle control host module; The vehicle control host module sends a second authority signal to the second enable pin of the connector according to the second authority instruction, and the second enable pin disables / enables the vehicle smart keyless entry function according to the second authority signal.

7. A vehicle control system based on a secondary factory key, characterized in that: include: Communication host module, vehicle control host module and aftermarket key module; The communication host module is used to receive control instructions issued by the mobile terminal for a specified function, and forward the control instructions to the vehicle control host module after verifying that the control instructions are valid; The vehicle control host module is used to parse the control instruction, and send a preset level signal to the control pin in the secondary factory key module according to the control instruction, so that the control pin controls a group of function pins corresponding to the specified function in the secondary factory key module to be connected according to the preset level signal; The secondary factory key module is used to send a control signal to the vehicle to execute the specified function when the function pin is connected.

8. The system according to claim 7, characterized in that The secondary factory key module includes: a secondary factory key and a connector for connecting the secondary factory key and the vehicle control host module; The connector is provided with a plurality of control pins and a plurality of groups of function pins, and each group of function pins is used to realize a control function according to the control of the control pins.

9. The system according to claim 8, characterized in that The connector is also provided with a first enabling pin; The communication host module is used to receive the first authority instruction of the mobile terminal and forward it to the vehicle control host module; The vehicle control host module is used to send a first authority signal to the first enable pin according to the first authority instruction, and the first enable pin disables / enables one of the control functions according to the first authority signal.

10. The system according to claim 8, characterized in that The connector is also provided with a second enabling pin; The communication host module is used to receive the second authority instruction of the mobile terminal and forward it to the vehicle control host module; The vehicle control host module is used to send a second authority signal to the second enable pin according to the second authority instruction, and the second enable pin disables / enables the vehicle smart keyless entry function according to the second authority signal.

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