CN117485289A

CN117485289A - Vehicle control method, cabin area controller, vehicle control system and vehicle

Info

Publication number: CN117485289A
Application number: CN202311608271.0A
Authority: CN
Inventors: 孙中华; 余玲玲; 张鹏; 蒋峰
Original assignee: Chongqing Changan Automobile Co Ltd
Current assignee: Chongqing Changan Automobile Co Ltd
Priority date: 2023-11-28
Filing date: 2023-11-28
Publication date: 2024-02-02

Abstract

The application relates to a vehicle control method, a cabin controller, a vehicle control system and a vehicle. The vehicle control method comprises the following steps: the Bluetooth module of the cabin area controller is used for waking up the first control module of the cabin area controller in response to the establishment of Bluetooth connection with the terminal; the first control module supplies power to a positioning antenna module of the vehicle and determines the position of the terminal by using the positioning antenna module; under the condition that the position meets the first position condition, the first control module starts the second control module of the cabin domain controller in a full-function mode; and the second control module performs Bluetooth key authentication on the terminal through Bluetooth connection in a full-function mode to obtain an authentication result, and sends a vehicle body control instruction to a vehicle body controller of the vehicle based on the position and the authentication result so as to perform vehicle body control on the vehicle. Therefore, the hardware resources of the Bluetooth module in the cabin domain controller can be fully utilized, the whole vehicle cost of the vehicle is reduced, and the power consumption of the whole vehicle can be reduced.

Description

Vehicle control method, cabin area controller, vehicle control system and vehicle

Technical Field

The application relates to the field of intelligent automobiles, in particular to a vehicle control method, a cabin area controller, a vehicle control system and a vehicle.

Background

Key forgetting, missing or leaving to lock is a pain spot for many vehicle owners, so that many vehicles are equipped with a functional configuration of keyless unlocking and automatic locking of the leaving vehicle in addition to the physical key. In the related art, the technical means for realizing keyless unlocking mainly include schemes such as unlocking a near field communication (Near Field Communication, NFC) card, keyless entry and start (Passive Entry and Passive Start, PEPS) unlocking, and bluetooth key. Among them, bluetooth keys are becoming popular and are becoming widely used. However, the bluetooth key scheme in the related art has high overall cost and power consumption.

Disclosure of Invention

One of the purposes of the embodiments of the present application is to provide a vehicle control method, so as to solve the problems of higher cost and higher power consumption of the whole vehicle in the bluetooth key scheme in the related art; a second object is to provide a cabin controller for a vehicle; a third object is to provide a vehicle control system; a fourth object is to provide a vehicle.

In order to achieve the above purpose, the technical solution adopted in the embodiment of the present application is as follows:

A vehicle control method applied to a cabin controller of the vehicle, wherein the cabin controller comprises a bluetooth module, a first control module and a second control module, and the method comprises the following steps:

the Bluetooth module is used for responding to the establishment of Bluetooth connection with the terminal and waking up the first control module;

the first control module supplies power to a positioning antenna module of the vehicle and determines the position of the terminal by utilizing the positioning antenna module;

under the condition that the position meets a first position condition, the first control module starts the second control module in a full-function mode;

and the second control module performs Bluetooth key authentication on the terminal through the Bluetooth connection in the full-function mode to obtain an authentication result, and sends a vehicle body control instruction to a vehicle body controller of the vehicle based on the position and the authentication result so as to perform vehicle body control on the vehicle.

According to the technical means, on one hand, bluetooth connection is established between the Bluetooth module in the cabin domain controller and the terminal through multiplexing, so that Bluetooth key authentication is performed on the terminal, hardware resources of the Bluetooth module in the cabin domain controller can be fully utilized, and the whole vehicle cost of a vehicle is reduced; on the other hand, because bluetooth module wakes up first control module earlier after establishing bluetooth connection with the terminal, then by first control module to location antenna module power supply, then under the condition that the position of terminal satisfied first position condition, first control module starts the second control module with full function mode, like this, can start the control module of difference in the cabin district controller according to the position of terminal stepwisely, and to location antenna module power supply again after bluetooth module establishes bluetooth connection with the terminal, thereby can reduce the consumption of whole car, and can promote the user and use bluetooth key to carry out vehicle control's experience.

In some embodiments, the first control module supplies power to a positioning antenna module of the vehicle and determines a location of the terminal using the positioning antenna module, including: the first control module supplies power to a positioning antenna module of the vehicle to start the positioning antenna module, so that the positioning antenna module obtains and sends the signal intensity of a Bluetooth signal broadcasted by the terminal to the control module; the first control module receives the signal strength and determines the position of the terminal based on the signal strength.

According to the technical means, the position of the terminal can be rapidly and accurately positioned based on the signal strength of the Bluetooth signal broadcasted by the terminal.

In some embodiments, the method further comprises, in the event that the location satisfies a first location condition, before the first control module activates the second control module in a full function mode: the first control module wakes up the second control module to a quick start mode; the first control module starts the second control module in a full-function mode, and the method comprises the following steps: the first control module controls the second control module to switch from the quick start mode to the full function mode.

According to the technical means, before the second control module is started in the full-function mode, the second control module is awakened to the quick starting mode in advance, then the second control module is controlled to be switched from the quick starting mode to the full-function mode, the starting speed of the second control module can be increased, the starting time is shortened, the efficiency of Bluetooth key authentication can be improved, and the user experience of vehicle control by using the Bluetooth key can be improved.

In some embodiments, before the bluetooth module wakes up the first control module in response to establishing the bluetooth connection with the terminal, the method further comprises: the Bluetooth module broadcasts Bluetooth signals according to the first frequency or the second frequency; the first frequency is lower than the second frequency; under the condition that the terminal is in a first preset area around the vehicle, the Bluetooth module establishes Bluetooth connection with the terminal; after the bluetooth module wakes up the first control module in response to establishing the bluetooth connection with the terminal, the method further includes: the first control module controls the Bluetooth module to broadcast Bluetooth signals according to the second frequency.

According to the technical means, before the Bluetooth connection is established with the terminal, the Bluetooth module adopts the lower first frequency or the higher second frequency to broadcast the Bluetooth signal, and after the Bluetooth connection is established between the Bluetooth module and the terminal, the first control module controls the Bluetooth module to broadcast the Bluetooth signal according to the higher second frequency, so that the stability of the Bluetooth connection between the Bluetooth module and the terminal can be improved.

In some embodiments, the method further comprises: the first control module responds to the detection that the terminal leaves the first preset area along the direction away from the vehicle and the Bluetooth connection is disconnected, and controls the second control module to enter a quick start mode and/or controls the Bluetooth module to broadcast Bluetooth signals at the first frequency.

According to the technical means, the second control module can be switched to the quick starting mode with lower power consumption and/or the Bluetooth module is controlled to broadcast Bluetooth signals at the lower first frequency under the condition that a user is far away from a vehicle and Bluetooth connection is disconnected, so that the power consumption of the whole vehicle can be further reduced.

In some embodiments, the bluetooth module broadcasts a bluetooth signal at a first frequency or a second frequency, comprising: the first control module determines a reference vehicle time period of the vehicle; when the current moment is within the reference vehicle time period, the first control module controls the Bluetooth module to broadcast Bluetooth signals according to the second frequency; and under the condition that the current moment is not in the reference vehicle time period, the first control module controls the Bluetooth module to broadcast Bluetooth signals according to the first frequency.

According to the technical means, on the one hand, under the condition that the current moment is in the reference vehicle time period of the vehicle, the first control module controls the Bluetooth module to broadcast Bluetooth signals according to the higher second frequency, so that the reliability and stability of Bluetooth connection can be improved, and the Bluetooth connection requirement of a user can be better met; on the other hand, under the condition that the current moment is not in the reference vehicle time period, the first control module controls the Bluetooth module to broadcast Bluetooth signals according to the lower first frequency, so that the power consumption of the Bluetooth module can be reduced, and the power consumption of the whole vehicle is reduced.

In some embodiments, the first control module supplies power to a positioning antenna module of the vehicle, comprising: the first control module determines a target power supply mode; the target power supply mode comprises one of the following steps: constant power supply and intermittent power supply according to a preset duty ratio; and the first control module supplies power to the positioning antenna module of the vehicle according to the target power supply mode.

According to the technical means, the first control module can select a target power supply mode from a normal power supply mode and a discontinuous power supply mode according to the preset duty ratio, and supply power to the positioning antenna module of the vehicle according to the target power supply mode, so that the positioning antenna module can be more flexibly started, and the positioning requirement of a user can be better met.

In some embodiments, the determining the target power supply mode includes one of: determining a movement trend of the terminal based on the position and the historical position of the terminal, and determining the target power supply mode based on the position and the movement trend; and determining a reference vehicle time period of the vehicle, and determining the target power supply mode based on the reference vehicle time period.

According to the technical means, on one hand, due to the position and the movement trend of the terminal, the vehicle intention of a user using the terminal can be better reflected, so that a more suitable target power supply mode can be determined based on the position and the movement trend; on the other hand, the reference vehicle using time period of the vehicle can reflect the reference vehicle using habit of the user, so that a more suitable target power supply mode can be determined based on the reference vehicle using time period, and further the use requirement of the user can be better met.

In some embodiments, the bluetooth connection between the bluetooth module and the terminal is established if the terminal is within a first preset area around the vehicle; the determining the target power supply mode based on the position and the movement trend comprises one of the following steps: determining that the target power supply mode is constant power supply under the condition that the position is located in a second preset area around the vehicle and the movement trend is close to the vehicle; the second preset area is closer to the vehicle than the first preset area; and under the condition that the position is located in a second preset area around the vehicle and the movement trend is far away from the vehicle, determining that the target power supply mode is to intermittently supply power according to a preset duty ratio.

According to the technical means, on the one hand, when the position of the terminal is located in the second preset area around the vehicle and the movement trend is close to the vehicle, the intention of the user for entering the vehicle can be indicated to be higher, so that the target power supply mode is determined to be constant power supply under the condition, the positioning accuracy can be improved, and the requirements of the user can be met better; on the other hand, when the position of the terminal is located in a second preset area around the vehicle and the movement trend is far away from the vehicle, the intention of the user for leaving the vehicle can be indicated to be higher, so that the target power supply mode is determined to be to intermittently supply power according to the preset duty ratio under the condition, the power consumption of the positioning antenna module can be reduced, and the power consumption of the whole vehicle is further reduced.

In some embodiments, the determining the target power supply mode based on the reference vehicle period includes: under the condition that the current moment is in the reference vehicle time period, determining that the target power supply mode is constant power supply; and under the condition that the current moment is not in the reference vehicle time period, determining that the target power supply mode is to intermittently supply power according to a preset duty ratio.

According to the technical means, on one hand, under the condition that the current moment is in the reference vehicle time period of the vehicle, the positioning antenna module is powered by adopting a constant power supply mode, so that the positioning accuracy can be improved, and the requirements of users can be better met; on the other hand, under the condition that the current moment is not in the reference vehicle time period, the power supply mode of intermittent power supply according to the preset duty ratio is adopted to supply power for the positioning antenna module, so that the power consumption of the positioning antenna module can be reduced, and the power consumption of the whole vehicle is further reduced.

In some embodiments, the determining the reference vehicle period of time for the vehicle includes: determining unlocking frequencies corresponding to the vehicles respectively in at least two time periods based on the historical unlocking records of the vehicles; and determining at least one time period with the highest unlocking frequency as the reference vehicle time period.

According to the technical means, based on the historical unlocking record of the vehicle, at least one time period with highest unlocking frequency is determined as the reference vehicle time period of the vehicle, so that the more accurate reference vehicle time period can be determined, the vehicle requirements of a user can be better met, and the use experience of the user is improved.

In some embodiments, the bluetooth connection between the bluetooth module and the terminal is established if the terminal is within a first predetermined area around the vehicle, the first location condition comprising the location being within a second predetermined area around the vehicle; the sending a vehicle body control instruction to a vehicle body controller of the vehicle based on the position and the authentication result includes: transmitting a vehicle body control instruction to a vehicle body controller of the vehicle under the condition that the position is located in a third preset area around the vehicle and the authentication result represents that authentication is successful; the first preset area, the second preset area and the third preset area are sequentially close to the vehicle.

According to the technical means, under the condition that the position of the terminal is located in the third preset area around the vehicle and the authentication result of Bluetooth key authentication on the terminal represents that the authentication is successful, the vehicle body control instruction is sent to the vehicle body controller of the vehicle, so that the accuracy of vehicle control can be improved, and the requirements of users can be better met.

In some embodiments, the vehicle body control command includes a door unlock command; after the transmitting a body control instruction to a body controller of the vehicle based on the position and the authentication result to perform body control on the vehicle, the method further includes: and under the condition that the power supply gear of the vehicle is in a closed gear, the first control module responds to the detection that the terminal enters the first preset area from the second preset area, and sends a door locking instruction to the vehicle body controller so that the vehicle body controller locks the door of the vehicle based on the door locking instruction.

According to the technical means, under the condition that the power supply gear of the vehicle is in the closed gear, the terminal enters the first preset area from the second preset area, so that the user carrying the terminal can be indicated to leave the vehicle, and accordingly, a door locking instruction is sent to the vehicle body controller under the condition, the requirements of the user can be better met, and the vehicle is automatically locked to improve the safety of the vehicle.

In some embodiments, the first control module comprises a micro control unit MCU, and the second control module comprises a system on chip SOC having a hardware security module integrated therein; the first control module starts the second control module in a full-function mode, and the method comprises the following steps: the MCU controls the SOC to start in a full-function mode; the SOC runs a first application program in the full-function mode; the second control module performs Bluetooth key authentication on the terminal through the Bluetooth connection in the full-function mode to obtain an authentication result, and the method comprises the following steps: and the first application program calls the hardware security module to perform Bluetooth key authentication on the terminal based on the Bluetooth connection to obtain an authentication result.

According to the technical means, the hardware security module integrated inside the SOC can be called to carry out Bluetooth key authentication on the terminal, and a security encryption chip is not required to be additionally added, so that the whole vehicle cost can be reduced.

A cabin domain controller for a vehicle, comprising:

the Bluetooth module, the first control module and the second control module; wherein:

the Bluetooth module is used for establishing Bluetooth connection with the terminal and waking up the first control module in response to the establishment of the Bluetooth connection;

the first control module is used for: supplying power to a positioning antenna module of the vehicle, and determining the position of the terminal by utilizing the positioning antenna module; under the condition that the position meets the first position condition, starting the second control module in a full-function mode;

the second control module is used for: and in the full-function mode, bluetooth key authentication is carried out on the terminal through the Bluetooth connection to obtain an authentication result, and a vehicle body control instruction is sent to a vehicle body controller of the vehicle based on the position and the authentication result so as to control the vehicle body of the vehicle.

In some embodiments, the first control module is in communication connection with the positioning antenna module through a local area network LIN, the first control module is in communication connection with the vehicle body controller through a controller area network CAN, and the first control module is in communication connection with the second control module through an ethernet; the first control module is further used for receiving the signal intensity of the Bluetooth signal broadcast by the terminal and sent by the positioning antenna module through the LIN, and determining the position of the terminal based on the signal intensity; the second control module is further used for sending an instruction sending request to the first control module through the Ethernet based on the position and the authentication result; the first control module is also used for responding to the command sending request and sending the vehicle body control command to the vehicle body controller through the CAN.

According to the technical means, the communication between the first control module and the positioning antenna module, the communication between the first control module and the vehicle body controller and the communication between the first control module and the second control module can be simply and reliably realized, so that the communication requirement of the first control module can be better met.

In some embodiments, the bluetooth module is communicatively connected to the second control module through a PCIE link of a high-speed serial computer expansion bus, where the PCIE link is used to transmit bluetooth data; and/or the Bluetooth module is in communication connection with the first control module through a first general purpose input output port GPIO1, wherein the GPIO1 is used for informing the Bluetooth module of the Bluetooth connection state to the first control module; and/or the Bluetooth module is in communication connection with the first control module through a second general purpose input/output port GPIO2, wherein the GPIO2 is used for the Bluetooth module to receive a power supply control command of the first control module; and/or, the Bluetooth module is in communication connection with the first control module through a universal asynchronous receiver/transmitter (UART), and the UART is used for transmitting the running state information of the Bluetooth module to the first control module.

According to the technical means, communication between the Bluetooth module and the first control module and/or the second control module can be simply and reliably realized, so that the data transmission requirement of the Bluetooth module can be better met.

In some embodiments, the first control module is connected with the second control module through a third general purpose input output (GPIO 3) in a communication manner; the first control module is further used for: before the second control module is started in the full-function mode, the second control module is awakened to a quick starting mode through the GPIO 3; and under the condition that the position meets the first position condition, controlling the second control module to switch from the quick start mode to the full function mode through the GPIO 3.

According to the technical means, the first control module can simply and efficiently control the operation mode of the second control module, so that the performance of the cabin domain controller is improved.

In some embodiments, the first control module comprises a micro control unit MCU, and the second control module comprises a system on chip SOC having a hardware security module integrated therein; the MCU is also used for controlling the SOC to start in a full-function mode; the SOC runs a first application program in the full-function mode; the first application program is used for calling the hardware security module to carry out Bluetooth key authentication on the terminal based on the Bluetooth connection, and an authentication result is obtained.

A vehicle control system comprising: the cabin area controller as in the above embodiments, and a positioning antenna module and a vehicle body controller communicatively connected to the cabin area controller.

A vehicle comprising a vehicle control system as described above.

The beneficial effects of this application:

Bluetooth connection is established between the Bluetooth module in the multiplexing cabin domain controller and the terminal so as to be used for carrying out Bluetooth key authentication on the terminal, so that hardware resources of the Bluetooth module in the cabin domain controller can be fully utilized, and the whole vehicle cost of a vehicle is reduced; the Bluetooth module wakes up the first control module after establishing Bluetooth connection with the terminal, then supplies power to the positioning antenna module by the first control module, and then starts the second control module in a full-function mode under the condition that the position of the terminal meets the first position condition, so that different control modules in the cabin domain controller can be started stepwise according to the position of the terminal, and the positioning antenna module is supplied with power after the Bluetooth connection is established between the Bluetooth module and the terminal, thereby reducing the power consumption of the whole vehicle and improving the experience of a user for controlling the vehicle by using a Bluetooth key;

based on the signal intensity of the Bluetooth signal broadcasted by the terminal, the position of the terminal can be rapidly and accurately positioned;

before the second control module is started in the full-function mode, the second control module is awakened to the quick starting mode in advance, and then the second control module is controlled to be switched from the quick starting mode to the full-function mode, so that the starting speed of the second control module can be increased, the starting time is shortened, the efficiency of Bluetooth key authentication can be improved, and the experience of a user for vehicle control by using a Bluetooth key can be improved;

Before the Bluetooth connection is established with the terminal, the Bluetooth module broadcasts Bluetooth signals by adopting a lower first frequency or a higher second frequency, and after the Bluetooth connection is established between the Bluetooth module and the terminal, the first control module controls the Bluetooth module to broadcast the Bluetooth signals according to the higher second frequency, so that the stability of the Bluetooth connection between the Bluetooth module and the terminal can be improved;

the second control module can be switched to a quick starting mode with lower power consumption and/or the Bluetooth module is controlled to broadcast Bluetooth signals at a first lower frequency under the condition that a user is far away from a vehicle and Bluetooth connection is disconnected, so that the power consumption of the whole vehicle can be further reduced;

under the condition that the current moment is in the reference vehicle time period of the vehicle, the first control module controls the Bluetooth module to broadcast Bluetooth signals according to the higher second frequency, so that the reliability and stability of Bluetooth connection can be improved, and the Bluetooth connection requirement of a user can be better met; under the condition that the current moment is not in the reference vehicle time period, the first control module controls the Bluetooth module to broadcast Bluetooth signals according to the lower first frequency, so that the power consumption of the Bluetooth module can be reduced, and the power consumption of the whole vehicle is reduced;

The first control module can select a target power supply mode from a normal power supply mode and a discontinuous power supply mode according to a preset duty ratio, and supply power to the positioning antenna module of the vehicle according to the target power supply mode, so that the positioning antenna module can be more flexibly started, and the positioning requirement of a user can be better met;

the position and the movement trend of the terminal can better reflect the vehicle intention of a user using the terminal, so that a more suitable target power supply mode can be determined based on the position and the movement trend; the reference vehicle time period of the vehicle can reflect the reference vehicle habit of the user, so that a more suitable target power supply mode can be determined based on the reference vehicle time period, and the use requirement of the user can be better met;

under the condition that the position of the terminal is located in a second preset area around the vehicle and the movement trend is close to the vehicle, the intention of a user for entering the vehicle can be indicated to be higher, so that the target power supply mode is determined to be constant power supply under the condition, the positioning accuracy can be improved, and the requirements of the user can be met better; under the condition that the position of the terminal is located in a second preset area around the vehicle and the movement trend is far away from the vehicle, the intention of a user for leaving the vehicle can be indicated to be higher, so that the target power supply mode is determined to be to intermittently supply power according to the preset duty ratio under the condition, the power consumption of the positioning antenna module can be reduced, and the power consumption of the whole vehicle is further reduced;

Under the condition that the current moment is in the reference vehicle time period of the vehicle, a constant electricity power supply mode is adopted to supply power to the positioning antenna module, so that the positioning accuracy can be improved, and the requirements of users can be better met; under the condition that the current moment is not in the reference vehicle time period, the positioning antenna module is powered in a discontinuous power supply mode according to the preset duty ratio, so that the power consumption of the positioning antenna module can be reduced, and the power consumption of the whole vehicle is further reduced;

based on the historical unlocking record of the vehicle, determining at least one time period with highest unlocking frequency as a reference vehicle time period of the vehicle, so that a more accurate reference vehicle time period can be determined, the vehicle requirements of a user can be better met, and the use experience of the user is improved;

under the condition that the position of the terminal is located in a third preset area around the vehicle and the authentication result of Bluetooth key authentication on the terminal represents that the authentication is successful, a vehicle body control instruction is sent to a vehicle body controller of the vehicle, so that the accuracy of vehicle control can be improved, and the requirements of users can be better met;

under the condition that the power supply gear of the vehicle is in the closed gear, the terminal enters the first preset area from the second preset area, so that the user carrying the terminal can be indicated to intend to leave the vehicle, and a door locking instruction is sent to the vehicle body controller under the condition, the requirements of the user can be better met, and the vehicle is automatically locked to improve the safety of the vehicle;

The hardware security module integrated inside the SOC can be called to carry out Bluetooth key authentication on the terminal, and a new security encryption chip is not required to be additionally added, so that the whole vehicle cost can be reduced;

the communication between the first control module and the positioning antenna module, the communication between the first control module and the vehicle body controller and the communication between the first control module and the second control module can be simply and reliably realized, so that the communication requirement of the first control module can be better met;

communication between the Bluetooth module and the first control module and/or the second control module can be simply and reliably realized, so that the data transmission requirement of the Bluetooth module can be better met;

the first control module can simply and efficiently control the operation mode of the second control module, so that the performance of the cabin controller is improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and, together with the description, serve to explain the technical aspects of the application.

Fig. 1A is a schematic diagram of a composition structure of a cabin domain controller according to an embodiment of the present application;

fig. 1B is a schematic implementation flow chart of a vehicle control method according to an embodiment of the present application;

Fig. 1C is a schematic distribution diagram of a first preset area, a second preset area, and a third preset area in a vehicle control method according to an embodiment of the present application;

fig. 1D is a schematic structural diagram of a cabin domain controller according to an embodiment of the present application;

fig. 2 is a schematic implementation flow chart of a vehicle control method according to an embodiment of the present application;

fig. 3 is a schematic implementation flow chart of a vehicle control method according to an embodiment of the present application;

fig. 4A is a schematic structural diagram of a cabin domain controller according to an embodiment of the present application;

fig. 4B is a schematic structural diagram of a cabin domain controller according to an embodiment of the present application;

fig. 4C is a schematic structural diagram of a cabin domain controller according to an embodiment of the present application;

fig. 4D is a schematic structural diagram of a cabin domain controller according to an embodiment of the present application;

fig. 5A is a schematic diagram of a composition architecture of a vehicle control system according to an embodiment of the present disclosure;

fig. 5B is a schematic flow chart of positioning a mobile phone in the vehicle control system according to the embodiment of the present application;

fig. 5C is a schematic diagram of an implementation flow of bluetooth key authentication for a mobile phone in a vehicle control system according to an embodiment of the present application.

Detailed Description

Further advantages and effects of the present application will be readily apparent to those skilled in the art from the disclosure in the present specification, by describing embodiments of the present application with reference to the accompanying drawings and exemplary examples. The present application may be embodied or carried out in other specific embodiments, and the details of the present application may be modified or changed from various points of view and applications without departing from the spirit of the present application. It should be understood that the exemplary embodiments are only for the purpose of illustrating the present application and are not intended to limit the scope of the present application.

It should be noted that in the following description, reference is made to "some embodiments" which describe a subset of all possible embodiments, but it is to be understood that "some embodiments" may be the same subset or different subsets of all possible embodiments and may be combined with each other without conflict. The term "first/second/third" is merely to distinguish similar objects and does not represent a specific ordering of objects, it being understood that the "first/second/third" may be interchanged with a specific order or sequence, as permitted, to enable embodiments of the present application described herein to be practiced otherwise than as illustrated or described herein.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing the present application only and is not intended to be limiting of the present application.

Key forgetting, missing or leaving to lock is a pain spot for many vehicle owners, so that many vehicles are equipped with a functional configuration of keyless unlocking and automatic locking of the leaving vehicle in addition to the physical key. In the related art, the technical means for realizing keyless unlocking mainly comprise schemes such as NFC card unlocking, PEPS unlocking, bluetooth key and the like.

NFC, near field communication, is a short-distance high-frequency wireless communication technology, and an induction type card reader and a point-to-point communication function are integrated on an NFC controller. The equipment with NFC function such as a mobile phone, an NFC card and the like is close to an induction area such as a B column of the automobile NFC, and unlocking of the automobile can be achieved. According to the scheme, the NFC controller is needed to be newly added to the vehicle, and the cost of the whole vehicle is increased.

PEPS technology is one of the methods of keyless unlocking of vehicles. When a user carries a radio frequency key to press the button, a body controller of the automobile receives information of the button and controls a low-frequency antenna of the automobile to send a low-frequency signal with a short communication distance, a high-frequency signal with a long communication distance is fed back after the user carried key receives the low-frequency signal, and the automobile high-frequency receiver can unlock the automobile after receiving the feedback signal to verify that the key is successful. The PEPS solution requires the user to carry a physical key, eliminating the process of manually turning a mechanical key.

In contrast, automobile bluetooth keys are becoming popular, and are widely used gradually, mainly because of the following: firstly, a part of car owners may forget to carry an entity key when going out, but most people cannot forget to carry a mobile phone; secondly, the Bluetooth function is already standard configuration in the smart phone; thirdly, bluetooth is a standard configuration of intelligent automobiles. The Bluetooth key scheme in the current market has landed on a plurality of motorcycle types, and through setting up the APP interconnect on the bluetooth antenna and the cell-phone outside the car, can unblock vehicle, judge user position etc.. However, the vehicle in the related art generally adopts a mode of externally hanging a bluetooth module controller to realize the bluetooth key unlocking function, so that the cost of the whole vehicle is increased.

Considering that the cabin area controller of the current intelligent automobile is already provided with a Bluetooth module, bluetooth phones, bluetooth music and the like can be realized, but the Bluetooth key unlocking function is not integrated yet. Therefore, the embodiment of the application combines the Bluetooth key function with the Bluetooth module in the cabin domain controller, so that the cost of the whole vehicle can be reduced, and the technical effect of full utilization of the whole vehicle resources can be realized.

The embodiment of the application provides a vehicle control method which is applied to a cabin area controller of a vehicle. Fig. 1A is a schematic diagram of a composition structure of a cabin domain controller according to an embodiment of the present application, and as shown in fig. 1A, the cabin domain controller 100 includes a bluetooth module 110, a first control module 120, and a second control module 130.

Fig. 1B is a schematic implementation flow chart of a vehicle control method according to an embodiment of the present application, as shown in fig. 1B, the method includes steps S101 to S104 as follows:

step S101, the bluetooth module wakes up the first control module in response to establishing a bluetooth connection with the terminal.

Here, the terminal may include, but is not limited to, at least one of a mobile phone, a tablet computer, a notebook computer, a wearable device, and the like.

It can be understood that the terminal supports bluetooth function, and the user can carry the terminal with him, and after the terminal enters the first preset area around the vehicle, the terminal and the bluetooth module can implement bluetooth communication protocol docking to establish bluetooth connection. In implementation, the first preset area may be preset by a person skilled in the art according to actual situations, or may be dynamically determined according to a coverage area of a bluetooth signal broadcasted by the bluetooth module and/or a coverage area of a bluetooth signal broadcasted by the terminal, which is not limited in the embodiment of the present application. For example, the first preset area may be an area having a distance from the vehicle in a range of 25 meters (m) to 30 m.

The Bluetooth module and the first control module can be in communication connection, and after the Bluetooth module and the terminal are connected, the Bluetooth module can wake up the first control module. In practice, the first control module may include, but is not limited to, at least one of a micro control unit Microcontroller Unit, MCU), digital signal processor (Digital Signal Processor, DSP), ARM (Advanced RISC Machines) processor, field programmable gate array (Field Programmable Gate Array, FPGA), system On Chip (SOC), etc.

In some embodiments, the bluetooth module and the first control module are in communication connection through a first General-purpose input/output (GPIO) (denoted as GPIO 1), and after the bluetooth module establishes bluetooth connection with the terminal, the first control module can be notified that the current bluetooth is connected through the GPIO1, so as to wake up the first control module.

In some embodiments, the first control module is in a full operational state after waking up.

Step S102, the first control module supplies power to a positioning antenna module of the vehicle, and the positioning antenna module is utilized to determine the position of the terminal.

Here, after the first control module wakes up, power can be supplied to the positioning antenna module of the vehicle to start the positioning antenna module. After the first control module wakes up the positioning antenna module, the positioning antenna module can be utilized to position the terminal, and the position of the terminal is obtained.

In some embodiments, the positioning antenna module may include at least three antennas, and the position of the terminal may be obtained by calculating signal strengths of bluetooth signals broadcast by the terminal respectively received by the at least three antennas. For example, four antennas may be included in the positioning antenna module.

Step S103, when the position meets the first position condition, the first control module starts the second control module in a full function mode.

Here, the first location condition may be preset by a person skilled in the art according to an actual application scenario, which is not limited in the embodiment of the present application. For example, the first location condition may include, but is not limited to, at least one of a location of the terminal being located within a second preset area around the vehicle, a distance between the location of the terminal and the vehicle being within a preset first distance range, a movement tendency of the terminal being approaching the vehicle, and the like.

In some embodiments, the first control module may activate the second control module in the full function mode if the location of the terminal is within a second predetermined area around the vehicle. For example, the second preset area may be an area having a distance from the vehicle in a range of 20m to 25 m.

The second control module may include, but is not limited to, at least one of a MCU, DSP, ARM processor, FPGA, SOC, etc. It is understood that the second control module and the first control module may be the same type of control module, or may be different types of control modules, which is not limited herein. For example, the first control module may be an MCU, and the second control module may be an SOC. For another example, the first control module may be an MCU, and the second control module may also be an MCU.

In some embodiments, the first control module and the second control module may be connected through a third General Purpose Input Output (GPIO) 3 in a communication manner, and the first control module may control the second control module to be started in a full function mode through the GPIO 3.

In some embodiments, the second control module may be unassisted before the first control module activates the second control module in the full function mode, and the first control module may control the second control module to activate from the unassisted state to the full function mode.

In some embodiments, before the first control module starts the second control module in the full-function mode, the first control module may wake up the second control module in advance to a fast Start (STR) mode, and in case the position of the terminal satisfies the first position condition, the first control module controls the second control module to switch from the fast start mode to the full-function mode again. The second control module is in a full-working state in a full-function mode, and is not completely started in an STR mode, but can be quickly started to the full-function mode in the STR mode. It can be appreciated that compared with the full-function mode, the second control module needs lower power consumption when in the STR mode, so that the second control module is awakened to the STR mode in advance, and is controlled to be switched from the STR mode to the full-function mode when the second control module needs to be applied subsequently, and the application requirement and the whole-vehicle power consumption can be saved.

Step S104, the second control module performs Bluetooth key authentication on the terminal through the Bluetooth connection in the full-function mode to obtain an authentication result, and sends a vehicle body control instruction to a vehicle body controller of the vehicle based on the position and the authentication result so as to perform vehicle body control on the vehicle.

Here, the second control module may perform bluetooth key authentication on the terminal in any suitable manner, which is not limited in this embodiment of the present application. For example, the second control module may perform bluetooth key authentication on the terminal through bluetooth communication with the terminal based on bluetooth key authentication protocol standard. For another example, the second control module may perform bluetooth key authentication on the terminal through bluetooth communication with the terminal based on a customized bluetooth key authentication protocol.

In some embodiments, the second control module may include an SOC, in which a first application is running, and the terminal is running a second application, and the first application may implement bluetooth key authentication for the terminal through authentication interaction with the second application.

The body control command may be any suitable command for body control of the vehicle including, but not limited to, at least one of a door unlock command, a vehicle start command, and the like.

In some embodiments, the second control module may send a body control instruction to a body controller of the vehicle when the position of the terminal satisfies the second position condition and the authentication result indicates that the authentication is successful, so that the body controller responds to the body controller to perform body control on the vehicle. The second location condition may include, but is not limited to, at least one of a location of the terminal being located within a third predetermined area around the vehicle, a distance between the location of the terminal and the vehicle being within a predetermined second distance range, a movement tendency of the terminal being approaching the vehicle, and the like.

In some embodiments, the second control module may send a body control command to a body controller of the vehicle when the position of the terminal is located in a third preset area around the vehicle and the authentication result indicates that the authentication is successful, so that the body controller responds to the body control command to perform body control on the vehicle. For example, the third preset area is an area having a distance from the vehicle in a range of 0m to 20 m.

The second control module may directly send the vehicle body control command to the vehicle body controller, or may indirectly send the vehicle body control command to the vehicle body controller through the first control module, which is not limited herein.

In the embodiment of the application, on one hand, bluetooth connection is established between the Bluetooth module in the cabin domain controller and the terminal through multiplexing, so that Bluetooth key authentication is performed on the terminal, hardware resources of the Bluetooth module in the cabin domain controller can be fully utilized, and the whole vehicle cost of a vehicle is reduced; on the other hand, because bluetooth module wakes up first control module earlier after establishing bluetooth connection with the terminal, then by first control module to location antenna module power supply, then under the condition that the position of terminal satisfied first position condition, first control module starts the second control module with full function mode, like this, can start the control module of difference in the cabin district controller according to the position of terminal stepwisely, and to location antenna module power supply again after bluetooth module establishes bluetooth connection with the terminal, thereby can reduce the consumption of whole car, and can promote the user and use bluetooth key to carry out vehicle control's experience.

In some embodiments, the step S102 may include the following steps S111 to S112:

in step S111, the first control module supplies power to the positioning antenna module of the vehicle to start the positioning antenna module, so that the positioning antenna module obtains and sends the signal strength of the bluetooth signal broadcasted by the terminal to the first control module.

In step S112, the first control module receives the signal strength and determines the location of the terminal based on the signal strength.

In some embodiments, the cabin area controller further comprises a power chip, and the first control module can control the power chip to supply power to the positioning antenna module so as to start the positioning antenna module; after the positioning antenna module is started, the Bluetooth signal broadcasted by the terminal can be detected, the signal intensity of the received Bluetooth signal is calculated, and then the signal intensity is sent to the first control module.

In some implementations, the signal strength of the bluetooth signal may include a received signal strength indicator value (Received Signal Strength Indication, RSSI).

In some embodiments, the first control module is communicatively connected to the positioning antenna module via a local interconnect network (Local Interconnect Network, LIN), and the positioning antenna module may send the signal strength of the bluetooth signal broadcast by the terminal to the first control module via the LIN; after the first control module receives the signal intensity, the signal intensity can be calculated to obtain the position of the terminal. In practice, any suitable positioning algorithm may be adopted by those skilled in the art according to the actual situation, and the position of the terminal is determined based on the received signal strength, which is not limited herein.

In the above embodiment, the position of the terminal can be rapidly and accurately located based on the signal strength of the bluetooth signal broadcasted by the terminal.

In some embodiments, before the step S103, the method further includes the following step S121:

step S121, the first control module wakes up the second control module to a fast start mode;

the step S103 of activating the second control module in the full function mode by the first control module may include the following step S122:

in step S122, the first control module controls the second control module to switch from the fast start mode to the full function mode.

In the above embodiment, before the second control module is started in the full-function mode, the second control module is awakened to the quick start mode in advance, and then the second control module is controlled to be switched from the quick start mode to the full-function mode, so that the start speed of the second control module can be increased, the start time is reduced, the efficiency of bluetooth key authentication can be improved, and the user experience of using the bluetooth key for vehicle control can be improved.

In some embodiments, the bluetooth connection between the bluetooth module and the terminal is established with the terminal being within a first predetermined area around the vehicle, the first location condition comprising the location being within a second predetermined area around the vehicle. The step S104 of sending a body control command to a body controller of the vehicle based on the position and the authentication result may include the following step S131:

Step S131, when the position is located in a third preset area around the vehicle and the authentication result represents that the authentication is successful, a vehicle body control instruction is sent to a vehicle body controller of the vehicle; the first preset area, the second preset area and the third preset area are sequentially close to the vehicle.

Here, the first preset area, the second preset area and the third preset area are sequentially close to the vehicle, the user can sequentially pass through the first preset area, the second preset area and the third preset area until reaching the vehicle door, and the user can also sequentially pass through the third preset area, the second preset area and the first preset area to leave the vehicle from the vehicle door.

In some embodiments, the first preset area, the second preset area and the third preset area may be circular or annular areas with sequentially decreasing radii with the vehicle as a center.

Fig. 1C is a schematic distribution diagram of a first preset area, a second preset area, and a third preset area in a vehicle control method according to an embodiment of the present application, where, as shown in fig. 1C, the first preset area a, the second preset area B, and the third preset area C are sequentially close to a vehicle V; under the condition that the terminal is in a first preset area A, the Bluetooth module can establish Bluetooth connection with the terminal and wake up the first control module; after the first control module is awakened, starting to supply power to the positioning antenna module, and determining the position of the terminal by using the positioning antenna module; under the condition that the terminal enters a second preset area B from a first preset area A, the first control module can start the second control module in a full-function mode; the second control module performs Bluetooth key authentication on the terminal through Bluetooth connection in a full-function mode to obtain an authentication result; under the condition that the terminal enters the third preset area C from the second preset area B and the authentication result of Bluetooth key authentication on the terminal represents that the authentication is successful, the second control module can send a vehicle body control instruction to a vehicle body controller of the vehicle.

In the above embodiment, when the position of the terminal is located in the third preset area around the vehicle and the authentication result of the bluetooth key authentication on the terminal represents that the authentication is successful, the vehicle body control instruction is sent to the vehicle body controller of the vehicle, so that the accuracy of vehicle control can be improved, and the requirements of users can be better met.

In some embodiments, the vehicle body control command includes a door unlock command. And under the condition that the position of the terminal is positioned in a third preset area around the vehicle and the authentication result indicates that the authentication is successful, the second control module can send a door unlocking instruction to a body controller of the vehicle so that the body controller can unlock the door of the vehicle based on the door unlocking instruction.

After the above step S104, the method may further include the following step S141:

and step S141, under the condition that the power supply gear of the vehicle is in a closed gear, the first control module responds to the detection that the terminal enters the first preset area from the second preset area, and a door locking instruction is sent to the vehicle body controller so that the vehicle body controller locks the door of the vehicle based on the door locking instruction.

In the above embodiment, since the terminal enters the first preset area from the second preset area under the condition that the power supply gear of the vehicle is in the off gear, it can be indicated that the user carrying the terminal intends to leave the vehicle, so that the vehicle door locking instruction is sent to the vehicle body controller under the condition, the requirements of the user can be better met, and the vehicle can be automatically locked to improve the safety of the vehicle.

In some embodiments, referring to fig. 1D, the first control module 120 includes an MCU 121, the second control module 130 includes an SOC 131, and a hardware security module (Hardware Security Module, HSM) 131a is integrated within the SOC 131.

The step S151 of starting the second control module by the first control module in the full function mode in the step S103 may include:

step S151, the MCU controls the SOC to start in a full-function mode; the SOC is operated with a first application in the full-function mode.

In step S104, the second control module performs bluetooth key authentication on the terminal through the bluetooth connection in the full function mode, to obtain an authentication result, and the method includes:

in step S152, the first application program invokes the hardware security module to perform bluetooth key authentication on the terminal based on the bluetooth connection, so as to obtain an authentication result.

In some embodiments, an operating system may be running in the SOC, on which the first application may run, and the first application may perform bluetooth communication with the terminal through the bluetooth module, so as to implement bluetooth key authentication for the terminal. Here, the operating system may include, but is not limited to, at least one of an android system, a Linux system, a hong system, and the like.

In the process of carrying out Bluetooth key authentication on a terminal, operations such as key generation, key distribution, encryption, decryption, digital signature and/or signature verification are required to be carried out, and a first application program can call a hardware security module integrated inside the SOC to process the operations.

In the above embodiment, according to the above technical means, the hardware security module integrated inside the SOC may be invoked to perform bluetooth key authentication on the terminal, without adding a new security encryption chip, so that the overall vehicle cost may be reduced.

In some embodiments, the sending, to the body controller of the vehicle, a body control instruction based on the location and the authentication result in the step S104 may include the following steps S161 to S162:

step S161, the SOC sends an instruction sending request to the MCU based on the location and the authentication result;

And step S162, the MCU responds to the command sending request and sends a vehicle body control command to a vehicle body controller.

Here, the command transmission request may be used to instruct the MCU to transmit a vehicle body control command to the vehicle body controller.

The embodiment of the application provides a vehicle control method, which is applied to a cabin area controller of a vehicle, wherein the cabin area controller comprises a Bluetooth module, a first control module and a second control module. Fig. 2 is a schematic implementation flow chart of a vehicle control method according to an embodiment of the present application, as shown in fig. 2, the method includes the following steps S201 to S207:

step S201, the Bluetooth module broadcasts Bluetooth signals according to a first frequency or a second frequency; the first frequency is lower than the second frequency.

Step S202, when a terminal is in a first preset area around the vehicle, the Bluetooth module establishes Bluetooth connection with the terminal.

In step S203, the bluetooth module wakes up the first control module in response to establishing a bluetooth connection with the terminal.

In step S204, the first control module controls the bluetooth module to broadcast a bluetooth signal according to the second frequency.

In step S205, the first control module supplies power to the positioning antenna module of the vehicle, and determines the position of the terminal by using the positioning antenna module.

Step S206, when the position meets the first position condition, the first control module starts the second control module in a full function mode.

Step S207, the second control module performs bluetooth key authentication on the terminal through the bluetooth connection in the full function mode, obtains an authentication result, and sends a vehicle body control instruction to a vehicle body controller of the vehicle based on the position and the authentication result, so as to perform vehicle body control on the vehicle.

Here, the first frequency and the second frequency may be preset by a person skilled in the art according to actual situations, which is not limited in the embodiment of the present application.

In this embodiment, before establishing bluetooth connection with the terminal, bluetooth module adopts lower first frequency or higher second frequency broadcast bluetooth signal, after establishing bluetooth connection between bluetooth module and terminal, first control module control bluetooth module broadcasts bluetooth signal according to higher second frequency, can improve bluetooth connection's between bluetooth module and the terminal stability like this.

In some embodiments, the method further comprises the step S211 of:

in step S211, the first control module controls the second control module to enter a fast start mode and/or controls the bluetooth module to broadcast a bluetooth signal at the first frequency in response to detecting that the terminal leaves the first preset area in a direction away from the vehicle and the bluetooth connection is disconnected.

In the above embodiment, the second control module may be switched to the fast start mode with lower power consumption and/or the bluetooth module may be controlled to broadcast the bluetooth signal at the first lower frequency in a scenario where the user is far away from the vehicle and the bluetooth connection is disconnected, so that the power consumption of the whole vehicle may be further reduced.

In some embodiments, the step S201 may include the following steps S221 to S223:

in step S221, the first control module determines a reference vehicle period of the vehicle.

In step S222, when the current time is within the reference vehicle time period, the first control module controls the bluetooth module to broadcast a bluetooth signal according to the second frequency.

In step S223, when the current time is not within the reference vehicle time period, the first control module controls the bluetooth module to broadcast a bluetooth signal according to the first frequency.

Here, the reference vehicle period of the vehicle may be a period in which the user has a high possibility of using the vehicle. In practice, a person skilled in the art can determine a suitable reference vehicle time period according to the actual application scenario.

The reference period of the reference vehicle period and the time division granularity may also be determined according to actual conditions. For example, the reference vehicle time period may be determined on a daily basis with a granularity of division in hours, i.e., the reference vehicle time period is at least one hour during a day where the user has a greater likelihood of using the vehicle. As another example, the reference vehicle time period may be determined on a weekly basis with a daily or hourly basis as a granularity of division, i.e., the reference vehicle time period is at least one day or at least one hour during a week where the user has a greater likelihood of using the vehicle.

In the above embodiment, on the one hand, when the current moment is in the reference vehicle time period of the vehicle, the first control module controls the bluetooth module to broadcast the bluetooth signal according to the higher second frequency, so that the reliability and stability of bluetooth connection can be improved, and the bluetooth connection requirement of a user can be better met; on the other hand, under the condition that the current moment is not in the reference vehicle time period, the first control module controls the Bluetooth module to broadcast Bluetooth signals according to the lower first frequency, so that the power consumption of the Bluetooth module can be reduced, and the power consumption of the whole vehicle is reduced.

In some embodiments, the determining the reference vehicle period of the vehicle described in the step S221 may include the following steps S231 to S232:

step S231, determining unlocking frequencies respectively corresponding to the vehicles in at least two time periods based on the historical unlocking records of the vehicles.

And step S232, determining at least one time period with the highest unlocking frequency as the reference vehicle time period.

In some embodiments, the unlocking time of the user can be recorded after the user unlocks the vehicle each time to obtain a historical unlocking record, and statistics is carried out according to small time periods by taking a month as a benchmark to obtain unlocking frequencies respectively corresponding to the small time periods of the day in the first month on the vehicle; and then taking at least one small time period with the highest unlocking frequency as a reference vehicle time period of the current month of the vehicle. For example, when the user unlocks the vehicle in the 7:00-8:00 time period, the number of times of use in the 7:00-8:00 time period is recorded once. For another example, three hours with the highest unlocking frequency corresponding to the previous month can be used as the reference vehicle time period of the current month of the vehicle.

In the above embodiment, based on the historical unlocking record of the vehicle, at least one time period with the highest unlocking frequency is determined as the reference vehicle time period of the vehicle, so that a more accurate reference vehicle time period can be determined, the vehicle requirements of the user can be better met, and the use experience of the user is improved.

The embodiment of the application provides a vehicle control method, which is applied to a cabin area controller of a vehicle, wherein the cabin area controller comprises a Bluetooth module, a first control module and a second control module. Fig. 3 is a schematic implementation flow chart of a vehicle control method according to an embodiment of the present application, as shown in fig. 3, the method includes the following steps S301 to S305:

in step S301, the bluetooth module wakes up the first control module in response to establishing a bluetooth connection with the terminal.

Step S302, the first control module determines a target power supply mode; the target power supply mode comprises one of the following steps: constant power supply and intermittent power supply according to a preset duty ratio.

In step S303, the first control module supplies power to the positioning antenna module of the vehicle according to the target power supply mode, and determines the position of the terminal by using the positioning antenna module.

Step S304, when the position meets the first position condition, the first control module starts the second control module in a full function mode.

Step S305, the second control module performs bluetooth key authentication on the terminal through the bluetooth connection in the full function mode, obtains an authentication result, and sends a vehicle body control instruction to a vehicle body controller of the vehicle based on the position and the authentication result, so as to perform vehicle body control on the vehicle.

Here, the constant power supply refers to uninterrupted power supply. Under the normal electricity power supply mode, the positioning antenna module can continuously work to continuously detect the signal intensity of the Bluetooth signal broadcasted by the terminal.

The preset duty cycle may be preset by a person skilled in the art according to an actual application scenario, which is not limited in the embodiment of the present invention. For example, the preset duty cycle may be 1 second for every 3 seconds, or 3 seconds for every 5 seconds, etc. Therefore, the positioning antenna module can work intermittently, so that the power consumption of the positioning antenna module can be reduced, and the power consumption of the whole vehicle is further reduced.

In the embodiment of the application, the first control module can select a target power supply mode from two modes of normal power supply and intermittent power supply according to the preset duty ratio, and supply power to the positioning antenna module of the vehicle according to the target power supply mode, so that the positioning antenna module can be more flexibly started, and the positioning requirement of a user is better met.

In some embodiments, the determining the target power supply manner in step S302 may include the following step S311 or step S312:

step S311, determining a movement trend of the terminal based on the location and the historical location of the terminal, and determining the target power supply mode based on the location and the movement trend.

Step S312, determining a reference vehicle period of the vehicle, and determining the target power supply mode based on the reference vehicle period.

Here, the movement trend of the terminal may include, but is not limited to, approaching a vehicle or moving away from a vehicle, etc.

In the above embodiment, on the one hand, due to the position and the movement trend of the terminal, the vehicle intention of the user using the terminal can be better reflected, so that a more suitable target power supply mode can be determined based on the position and the movement trend; on the other hand, the reference vehicle using time period of the vehicle can reflect the reference vehicle using habit of the user, so that a more suitable target power supply mode can be determined based on the reference vehicle using time period, and further the use requirement of the user can be better met.

In some embodiments, the bluetooth connection between the bluetooth module and the terminal is established with the terminal being within a first predetermined area around the vehicle. The determining the target power supply mode based on the position and the movement trend in step S311 may include the following step S321 or step S322:

Step S321, determining that the target power supply mode is constant power supply when the position is located in a second preset area around the vehicle and the movement trend is close to the vehicle; the second preset area is closer to the vehicle than the first preset area.

Step S322, determining that the target power supply mode is to intermittently supply power according to a preset duty cycle when the position is located in a second preset area around the vehicle and the movement trend is far away from the vehicle.

In the above embodiment, on the one hand, in the case that the position of the terminal is located in the second preset area around the vehicle and the movement trend is close to the vehicle, it may be indicated that the intention of the user for entering the vehicle is higher, so that the target power supply mode is determined to be constant power supply in this case, positioning accuracy may be improved, and further, the requirement of the user may be better satisfied; on the other hand, when the position of the terminal is located in a second preset area around the vehicle and the movement trend is far away from the vehicle, the intention of the user for leaving the vehicle can be indicated to be higher, so that the target power supply mode is determined to be to intermittently supply power according to the preset duty ratio under the condition, the power consumption of the positioning antenna module can be reduced, and the power consumption of the whole vehicle is further reduced.

In some embodiments, the determining the target power supply mode based on the reference vehicle period in the step S312 may include the following steps S331 to S332:

and step S331, determining that the target power supply mode is constant power supply under the condition that the current moment is in the reference vehicle time period.

Step S332, determining that the target power supply mode is to intermittently supply power according to a preset duty ratio when the current time is not within the reference vehicle time period.

In the above embodiment, on the one hand, when the current moment is in the reference vehicle time period of the vehicle, the positioning antenna module is powered by adopting the normal power supply mode, so that the positioning accuracy can be improved, and the requirements of users can be better met; on the other hand, under the condition that the current moment is not in the reference vehicle time period, the power supply mode of intermittent power supply according to the preset duty ratio is adopted to supply power for the positioning antenna module, so that the power consumption of the positioning antenna module can be reduced, and the power consumption of the whole vehicle is further reduced.

In some embodiments, the reference vehicle period for determining the vehicle described in step S312 corresponds to the reference vehicle period for determining the vehicle described in step S221 in the foregoing embodiments, and may be implemented with reference to the implementation of step S221.

The embodiment of the present application provides a cabin controller of a vehicle, as shown in fig. 4A, the cabin controller 100 includes a bluetooth module 110, a first control module 120, and a second control module 130; wherein:

the bluetooth module 110 is configured to establish a bluetooth connection with the terminal, and wake up the first control module 120 in response to establishing the bluetooth connection;

the first control module 120 is configured to: supplying power to the positioning antenna module 200 of the vehicle, and determining the position of the terminal using the positioning antenna module 200; in the case that the position satisfies the first position condition, the second control module 130 is started in the full function mode;

the second control module 130 is configured to: and in the full-function mode, bluetooth key authentication is performed on the terminal through Bluetooth connection to obtain an authentication result, and a vehicle body control instruction is sent to a vehicle body controller 300 of the vehicle based on the position and the authentication result so as to perform vehicle body control on the vehicle.

In some embodiments, as shown in fig. 4B, the first control module 120 is communicatively connected to the positioning antenna module 200 through the local area network LIN, the first control module 120 is communicatively connected to the vehicle body controller 300 through the controller area network CAN, and the first control module 120 is communicatively connected to the second control module 130 through the ethernet ETH;

the first control module 120 is further configured to receive, through the LIN, a signal strength of a bluetooth signal broadcast by the terminal and sent by the positioning antenna module 200, and determine a location of the terminal based on the signal strength;

the second control module 130 is further configured to send an instruction sending request to the first control module 120 through the ethernet ETH based on the location and the authentication result;

the first control module 120 is further configured to send a vehicle body control command to the vehicle body controller 300 through the CAN in response to the command sending request.

In the above embodiment, the communication between the first control module and the positioning antenna module, the communication between the first control module and the vehicle body controller, and the communication between the first control module and the second control module can be simply and reliably realized, so that the communication requirement of the first control module can be better satisfied.

In some embodiments, as shown in fig. 4C, the bluetooth module 110 is communicatively connected to the second control module 130 through a PCIE link of the high-speed serial computer expansion bus, where the PCIE link is used to transmit bluetooth data;

And/or, the bluetooth module 110 is in communication connection with the first control module 120 through the first general purpose input output port GPIO1, where the GPIO1 is used for the bluetooth module 110 to notify the first control module 120 of the bluetooth connection state;

and/or, the bluetooth module 110 is in communication connection with the first control module 120 through a second general purpose input/output port GPIO2, wherein the GPIO2 is used for the bluetooth module 110 to receive a power control command of the first control module 120;

and/or, the bluetooth module 110 is communicatively connected to the first control module 120 through a universal asynchronous receiver/Transmitter (Universal Asynchronous Receiver/Transmitter, UART), and the UART is configured to transmit the operation status information of the bluetooth module 110 to the first control module 120.

In the above embodiment, communication between the bluetooth module and the first control module and/or the second control module can be simply and reliably realized, so as to better meet the data transmission requirement of the bluetooth module.

In some embodiments, as shown in fig. 4D, the first control module 120 and the second control module 130 are communicatively connected through a third general purpose input/output port GPIO 3;

the first control module 120 is further configured to: before the second control module 130 is started in the full-function mode, the second control module 130 is awakened to the quick start mode through GPIO 3; in case that the location of the terminal satisfies the first location condition, the second control module 130 is controlled to switch from the fast start mode to the full function mode through the GPIO 3.

In the above embodiment, the first control module may simply and efficiently control the operation mode of the second control module through GPIO3, thereby improving the performance of the cabin controller.

In some embodiments, as shown in fig. 1D, the first control module 120 includes an MCU 121, the second control module 130 includes an SOC 131, and the SOC 131 has an HSM 131a integrated therein; MCU 121 is also used to control SOC 131 to start in a fully functional mode; the SOC 131 operates with a first application in the full function mode; the first application is used for calling the HSM 131a to perform bluetooth key authentication on the terminal based on bluetooth connection, and an authentication result is obtained.

In the above embodiment, the hardware security module integrated inside the SOC may be invoked to perform bluetooth key authentication on the terminal, without adding a new security encryption chip, so that the overall vehicle cost may be reduced.

The embodiment of the application provides a vehicle control system, which can fully utilize the hardware resources of a Bluetooth module of a current intelligent automobile cabin domain controller to realize the Bluetooth key function, reduce the cost of the whole automobile and improve the convenience and the economy of a user using the vehicle.

Fig. 5A is a schematic diagram of a composition architecture of a vehicle control system according to an embodiment of the present application, as shown in fig. 5A, the vehicle control system 1000 includes: a cabin controller 100 for interactive entertainment with a user, a positioning antenna module 200 for positioning a cell phone through bluetooth signals, a body controller 300 for controlling unlocking of the doors of a vehicle.

Referring to fig. 5A and 1D, the cabin controller 100 integrates an MCU 121 with an automobile safety integrity rating (Automotive Safety Integrity Level, ASIL) of D, and the MCU 121 controls the bluetooth module 110, so that functions of bluetooth such as communication protocol docking, key authentication, etc. can be realized. The positioning antenna module 200 can receive bluetooth signals broadcasted by bluetooth of the mobile phone and output signal intensity to the MCU 121, and the MCU 121 calculates the position of the mobile phone, namely the position of the user according to the received signal intensity; the body controller 300 may receive and verify a door unlock command or a door lock command of the entire vehicle.

The cabin domain controller 100 is in communication connection with the positioning antenna module 200 through the LIN network, and the positioning antenna module 200 transmits the signal strength of the received bluetooth signal to the MCU 121. The cabin domain controller 100 is in communication connection with the vehicle body controller 300 through a CAN network, and the MCU 121 transmits a door unlock command or a door lock command to the vehicle body controller 300 through the CAN network.

Further, with continued reference to fig. 5A and 1D, the cabin domain controller 100 integrates a high power SOC 131, a bluetooth module 110, an MCU 121. The high-power SOC 131 runs an android system, integrates a first bluetooth key APP (corresponding to the first application in the foregoing embodiment), and integrates the HSM 131a; the bluetooth module 110 is externally connected with a bluetooth antenna, so that broadcasting and receiving of a bluetooth protocol can be realized; MCU 121 integrates power management control, bluetooth module status monitoring, etc. The bluetooth module 110 is in communication connection with the SOC 131 through a PCIE link, and is configured to transmit bluetooth data, bluetooth authentication information, etc. of a user; the bluetooth module 110 is in communication connection with the MCU 121 through the GPIO1, and is used for notifying the MCU 121 of the bluetooth connection state; the bluetooth module 110 is also in communication connection with the MCU 121 through GPIO2, and is configured to receive a power control command from the MCU 121; the bluetooth module 110 is also in communication connection with the MCU 121 through the UART, and is used for transmitting the normal and abnormal states of the bluetooth module 110; MCU 121 is in communication connection with SOC 131 through Ethernet ETH, and is used for transmitting control command of first Bluetooth key APP; MCU 121 is communicatively coupled to SOC 131 via GPIO3 for controlling the power state of SOC 131.

The power supply of the positioning antenna module 200 is controlled by the cabin controller 100. The MCU 121 in the cabin domain controller 100 is in a normal electric state, after the user unlocks the vehicle, the MCU 121 or the SOC 131 records the unlocking time of the user each time to obtain a historical unlocking record, and statistics is carried out according to small time periods by taking a month as a benchmark to obtain unlocking frequencies respectively corresponding to the small time periods of the vehicle in one month in one day; and then taking the three hours with the highest unlocking frequency as the reference vehicle time period of the current month of the vehicle. After the MCU 121 is awakened, the positioning antenna module 200 is powered by the normal power supply during the reference vehicle period, and the positioning antenna module 200 is powered intermittently at a lower frequency during other periods, for example, 1 second every 3 seconds. In some embodiments, if the user does not unlock the vehicle or the battery level of the whole vehicle is less than 30% for three consecutive days, the MCU 121 turns off the power supply to the positioning antenna module 200 to reduce power consumption.

When the user leaves the car, the MCU 121 can read the state of the register in the Bluetooth module 110 through the UART and save the state to the local log, if the state of the register in the Bluetooth module 110 represents that the Bluetooth module 110 fails, the power supply of the positioning antenna module 200 is permanently turned off during the locking period, and the Bluetooth key function is disabled until the Bluetooth module 110 returns to normal after the next whole car is electrified.

Referring to fig. 5b, the process of the mcu 121 positioning the mobile phone using the positioning antenna module 200 includes the following steps S401 to S403:

step S401, a user opens a Bluetooth of a mobile phone, and the Bluetooth of the mobile phone broadcasts a Bluetooth signal;

step S402, after the positioning antenna module detects a Bluetooth signal broadcasted by a mobile phone, the RSSI of the Bluetooth signal is calculated, and the RSSI of the Bluetooth signal is sent to the MCU through the LIN;

the RSSI of the Bluetooth signals comprises RSSIs of the Bluetooth signals respectively received by 4 antennas in the positioning antenna module.

Step S403, after the MCU receives the RSSIs corresponding to the 4 antennas respectively, the position of the mobile phone is calculated by adopting a preset positioning algorithm according to the RSSIs corresponding to the 4 antennas respectively.

It can be appreciated that, because the user carries the mobile phone, the location of the mobile phone is the location of the user.

In a vehicle control system provided in an embodiment of the present application, a corresponding door unlocking policy is provided. Referring to fig. 1C, the surroundings of the vehicle V may be divided into a first preset area a, a second preset area B, and a third preset area C, wherein the first preset area a, the second preset area B, and the third preset area C are sequentially adjacent to the vehicle V; when the user brings the mobile phone close to the vehicle and enters the first preset area A, the Bluetooth module can establish Bluetooth connection with the mobile phone and wake up the MCU through GPIO 2; the MCU is in a full working state after being awakened, and the SOC is awakened through the GPIO3, so that the SOC enters an STR mode; the MCU controls the power chip to supply power to the positioning antenna module; the positioning antenna module starts to receive Bluetooth signals broadcasted by the mobile phone, calculates RSSI of the Bluetooth signals, and sends the RSSI of the Bluetooth signals to the MCU through the LIN; after receiving RSSIs corresponding to the 4 antennas respectively, the MCU calculates the position of the mobile phone by adopting a preset positioning algorithm according to the RSSIs corresponding to the 4 antennas respectively; when a user carries a mobile phone to enter a second preset area B from a first preset area A, the MCU informs the SOC to start in a full-function mode, the SOC enters a normal working state from an STR mode and operates a first Bluetooth key APP, bluetooth key authentication is performed through the first Bluetooth key APP and a second Bluetooth key APP (corresponding to a second application program in the embodiment) on the mobile phone side, and an authentication result is obtained; and under the condition that the SOC determines that the user enters the third preset area C from the second preset area B and the SOC successfully authenticates with the Bluetooth key of the mobile phone of the user, the SOC informs the MCU to send a door unlocking instruction to the vehicle body controller, and the vehicle body controller unlocks the vehicle door after receiving the door unlocking instruction.

In a vehicle control system provided in an embodiment of the present application, a door latch strategy is also provided. With continued reference to fig. 1C, after the user parks, the power supply gear of the whole vehicle enters a shutdown (OFF) gear, and the user leaves the vehicle with the mobile phone; if the MCU determines that the mobile phone enters the second preset area B from the third preset area C, the MCU sends a door locking instruction to the vehicle body controller so that the vehicle body controller locks the door of the vehicle based on the door locking instruction; when the user is further away from the vehicle until the user leaves the first preset area A and the Bluetooth connection is disconnected, the Bluetooth module and/or the SOC informs the MCU that the Bluetooth connection is disconnected, the MCU controls the SOC to enter an STR mode through the GPIO3, and the MCU controls the Bluetooth module to enter a dormant state through the GPIO2, and the Bluetooth module in the dormant state starts to broadcast Bluetooth signals in a low frequency mode. In addition, when the user further moves away from the vehicle until moving out of the first preset area a and the bluetooth connection is disconnected, the SOC may also autonomously enter the STR mode.

Fig. 5C is a schematic diagram of an implementation flow of bluetooth key authentication for a mobile phone in a vehicle control system according to an embodiment of the present application. As shown in fig. 5C, bluetooth key authentication may be performed on the mobile phone by using an asymmetric key processing manner, and the process of bluetooth key authentication includes the following steps S501 to S523:

Step S501, the second bluetooth key APP establishes a bluetooth connection with the first bluetooth key APP.

Here, after the user opens the second bluetooth key APP at the mobile phone side, the second bluetooth key APP can initiate a bluetooth connection request to the first bluetooth key APP at the SOC side.

In step S502, the second bluetooth key APP initiates a key identification inquiry request to the first bluetooth key APP.

Here, after the second bluetooth key APP and the first bluetooth key APP are successfully connected, a key identifier inquiry request may be initiated to the first bluetooth key APP through the bluetooth connection, for inquiring key identifier information KEYID corresponding to the mobile phone.

In step S503, the first bluetooth key APP acquires KEYID from the HSM.

After receiving the key identification inquiry request, the first Bluetooth key APP calls an HSM integrated in the SOC to acquire the KEYID corresponding to the mobile phone.

In step S504, the first bluetooth key APP returns KEYID to the second bluetooth key APP.

In step S505, the second bluetooth key APP confirms whether the KEYID opens the key authority.

The second bluetooth key APP can query the mobile phone security container to confirm whether the KEYID opens the key authority.

In step S506, the second bluetooth key APP initiates a key exchange request.

Here, the second bluetooth key APP may initiate a key exchange request to the first bluetooth key APP if it is confirmed that the KEYID opens the key authority.

In step S507, the first bluetooth key APP obtains the public key of the SOC from the HSM.

In step S508, the first bluetooth key APP returns the public key of the SOC.

After the first Bluetooth key APP obtains the public key of the SOC, the public key of the SOC can be returned to the second Bluetooth key APP.

In step S509, the second bluetooth key APP stores the public key of the SOC in the mobile phone security container, and obtains the public key of the mobile phone from the mobile phone security container.

In step S510, the second bluetooth key APP transmits the public key of the mobile phone to the first bluetooth key APP.

In step S511, the first bluetooth key APP stores the public key of the mobile phone in the HSM.

In step S512, the first bluetooth key APP returns the key exchange result to the second bluetooth key APP.

The key exchange result represents whether the current public key exchange is successful or not.

In step S513, the second bluetooth key APP generates a first random number using the secure container of the mobile phone, and signs the first random number with the private key of the mobile phone.

It will be appreciated that the public key of the handset and the private key of the handset are asymmetric authenticated key pairs. Signature data signed by the private key of the mobile phone can be checked by the public key of the mobile phone. The data encrypted by the public key of the mobile phone can be decrypted by the private key of the mobile phone.

The first random number is signed by the private key of the mobile phone, so that signature data DKINFO of the first random number can be obtained.

In step S514, the second bluetooth key APP initiates a verification process.

Here, the second bluetooth key APP may initiate the authentication procedure by transmitting the signature data DKINFO and the first random number to the first bluetooth key APP.

In step S515, the first bluetooth key APP invokes the HSM, and uses the public key of the mobile phone to check the signature data DKINFO of the first random number.

Here, after the signature verification of the signature data DKINFO of the first random number is successful, step S516 may be entered.

In step S516, the first bluetooth key APP invokes the HSM to generate a second random number, and signs the second random number with the private key of the SOC.

In step S517, the first bluetooth key APP returns the signature data of the second random number to the second bluetooth key APP.

In step S518, the second bluetooth key APP uses the public key of the SOC to check the signature data of the second random number.

Here, the second bluetooth key APP may check the signature data of the second random number by calling the mobile phone security container using the public key of the SOC.

In step S519, the second bluetooth key APP returns the signature verification result of the signature data of the second random number to the first bluetooth key APP.

In step S520, the second bluetooth key APP generates a process key se skey using the HMAC algorithm and encrypts the process key using the public key of the SOC.

Wherein the HMAC (Hash-based Message Authentication Code) algorithm refers to a hashed message authentication code.

In step S521, the second bluetooth key APP transmits the encrypted data of the process key to the first bluetooth key APP.

In step S522, the first bluetooth key APP uses the encrypted data of the private key interface process key of the SOC, and stores the obtained process key se skey in the HSM.

In step S523, the first bluetooth key APP returns the pushing result of the process key to the second bluetooth key APP.

The push result characterizes whether the first bluetooth key APP successfully acquires and stores the process key SESKEY.

It can be understood that, in the case where steps S501 to S523 are all completed and the pushing result of the process key characterizes that the first bluetooth key APP has successfully acquired and stored the process key SESKEY, the authentication of the bluetooth key of the mobile phone is successful, otherwise, the authentication of the bluetooth key of the mobile phone is failed.

The embodiment of the application has at least the following advantages:

1) The Bluetooth module in the cabin domain controller can be reused without using a traditional Bluetooth key controller, so that the cost of the whole vehicle is reduced;

2) The encryption and decryption authentication is carried out by adopting the HSM module integrated inside the SOC in the cabin domain controller, so that a new security encryption chip is not required to be additionally added, and the cost of the whole vehicle is reduced;

3) Aiming at the problem of high Bluetooth power consumption, different control chip modules in the separated-distance ladder wake-up cabin domain controller are adopted, the whole car power consumption is reduced, and the experience of a user in using a Bluetooth key is improved.

In addition, the embodiment of the application also provides a vehicle control system, which comprises: the cabin area controller described in the above embodiment, and the positioning antenna module and the vehicle body controller that are communicatively connected to the cabin area controller.

The embodiment of the application also provides a vehicle, which comprises the vehicle control system in the embodiment.

The description of the above cabin controller embodiment, the vehicle control system embodiment, and the vehicle embodiment are similar to those of the vehicle control method embodiment described above, with similar advantageous effects as the vehicle control method embodiment. For technical details not disclosed in the present application cabin domain controller embodiments, vehicle control system embodiments, and vehicle embodiments, please refer to the description of the vehicle control method embodiments of the present application for understanding.

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in various embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present application. The foregoing embodiment numbers of the present application are merely for describing, and do not represent advantages or disadvantages of the embodiments.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above described device embodiments are only illustrative, e.g. the division of the units is only one logical function division, and there may be other divisions in practice, such as: multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. In addition, the various components shown or discussed may be coupled or directly coupled or communicatively coupled to each other via some interface, whether indirectly coupled or communicatively coupled to devices or units, whether electrically, mechanically, or otherwise.

The units described above as separate components may or may not be physically separate, and components shown as units may or may not be physical units; can be located in one place or distributed to a plurality of network units; some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may be separately used as one unit, or two or more units may be integrated in one unit; the integrated units may be implemented in hardware or in hardware plus software functional units.

The foregoing description is merely for fully illustrating the embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions easily conceivable by those skilled in the art within the technical scope of the present application should be covered in the scope of the present application.

Claims

1. A vehicle control method, applied to a cabin controller of the vehicle, the cabin controller including a bluetooth module, a first control module, and a second control module, the method comprising:

2. The method of claim 1, wherein the first control module powering a location antenna module of the vehicle and determining the location of the terminal using the location antenna module comprises:

the first control module supplies power to a positioning antenna module of the vehicle to start the positioning antenna module, so that the positioning antenna module obtains and sends the signal intensity of the Bluetooth signal broadcasted by the terminal to the first control module;

the first control module receives the signal strength and determines the position of the terminal based on the signal strength.

3. The method of claim 1, wherein the first control module is configured to, prior to activating the second control module in the full function mode if the location satisfies a first location condition, further comprising:

the first control module wakes up the second control module to a quick start mode;

the first control module starts the second control module in a full-function mode, and the method comprises the following steps:

the first control module controls the second control module to switch from the quick start mode to the full function mode.

4. The method of claim 1, wherein before the bluetooth module wakes the first control module in response to establishing a bluetooth connection with a terminal, the method further comprises:

the Bluetooth module broadcasts Bluetooth signals according to the first frequency or the second frequency; the first frequency is lower than the second frequency;

under the condition that the terminal is in a first preset area around the vehicle, the Bluetooth module establishes Bluetooth connection with the terminal;

after the bluetooth module wakes up the first control module in response to establishing the bluetooth connection with the terminal, the method further includes:

the first control module controls the Bluetooth module to broadcast Bluetooth signals according to the second frequency.

5. The method according to claim 4, wherein the method further comprises:

the first control module responds to the detection that the terminal leaves the first preset area along the direction away from the vehicle and the Bluetooth connection is disconnected, and controls the second control module to enter a quick start mode and/or controls the Bluetooth module to broadcast Bluetooth signals at the first frequency.

6. The method of claim 4, wherein the bluetooth module broadcasts bluetooth signals at the first frequency or the second frequency, comprising:

The first control module determines a reference vehicle time period of the vehicle;

when the current moment is within the reference vehicle time period, the first control module controls the Bluetooth module to broadcast Bluetooth signals according to the second frequency;

and under the condition that the current moment is not in the reference vehicle time period, the first control module controls the Bluetooth module to broadcast Bluetooth signals according to the first frequency.

7. The method of any one of claims 1 to 6, wherein the first control module supplies power to a positioning antenna module of the vehicle, comprising:

the first control module determines a target power supply mode; the target power supply mode comprises one of the following steps: constant power supply and intermittent power supply according to a preset duty ratio;

and the first control module supplies power to the positioning antenna module of the vehicle according to the target power supply mode.

8. The method of claim 7, wherein the determining the target power supply mode comprises one of:

determining a movement trend of the terminal based on the position and the historical position of the terminal, and determining the target power supply mode based on the position and the movement trend;

And determining a reference vehicle time period of the vehicle, and determining the target power supply mode based on the reference vehicle time period.

9. The method of claim 8, wherein the bluetooth connection between the bluetooth module and the terminal is established if the terminal is within a first predetermined area around the vehicle; the determining the target power supply mode based on the position and the movement trend comprises one of the following steps:

determining that the target power supply mode is constant power supply under the condition that the position is located in a second preset area around the vehicle and the movement trend is close to the vehicle; the second preset area is closer to the vehicle than the first preset area;

and under the condition that the position is located in a second preset area around the vehicle and the movement trend is far away from the vehicle, determining that the target power supply mode is to intermittently supply power according to a preset duty ratio.

10. The method of claim 8, wherein the determining the target power supply mode based on the reference vehicle period comprises:

under the condition that the current moment is in the reference vehicle time period, determining that the target power supply mode is constant power supply;

And under the condition that the current moment is not in the reference vehicle time period, determining that the target power supply mode is to intermittently supply power according to a preset duty ratio.

11. The method of claim 6 or 8, wherein the determining a reference vehicle period of the vehicle comprises:

determining unlocking frequencies corresponding to the vehicles respectively in at least two time periods based on the historical unlocking records of the vehicles;

and determining at least one time period with the highest unlocking frequency as the reference vehicle time period.

12. The method according to any of claims 1 to 6, wherein a bluetooth connection between the bluetooth module and the terminal is established if the terminal is within a first preset area around the vehicle, the first location condition comprising the location being within a second preset area around the vehicle;

the sending a vehicle body control instruction to a vehicle body controller of the vehicle based on the position and the authentication result includes:

transmitting a vehicle body control instruction to a vehicle body controller of the vehicle under the condition that the position is located in a third preset area around the vehicle and the authentication result represents that authentication is successful; the first preset area, the second preset area and the third preset area are sequentially close to the vehicle.

13. The method of claim 12, wherein the body control command comprises a door unlock command;

after the transmitting a body control instruction to a body controller of the vehicle based on the position and the authentication result to perform body control on the vehicle, the method further includes:

and under the condition that the power supply gear of the vehicle is in a closed gear, the first control module responds to the detection that the terminal enters the first preset area from the second preset area, and sends a door locking instruction to the vehicle body controller so that the vehicle body controller locks the door of the vehicle based on the door locking instruction.

14. The method according to any one of claims 1 to 6, wherein the first control module comprises a micro control unit, MCU, and the second control module comprises a system on chip, SOC, having a hardware security module integrated therein;

the first control module starts the second control module in a full-function mode, and the method comprises the following steps: the MCU controls the SOC to start in a full-function mode; the SOC runs a first application program in the full-function mode;

The second control module performs Bluetooth key authentication on the terminal through the Bluetooth connection in the full-function mode to obtain an authentication result, and the method comprises the following steps: and the first application program calls the hardware security module to perform Bluetooth key authentication on the terminal based on the Bluetooth connection to obtain an authentication result.

15. A cabin controller for a vehicle, comprising:

the Bluetooth module, the first control module and the second control module; wherein,

16. The cabin controller according to claim 15, wherein the first control module is communicatively connected to the positioning antenna module via a local interconnect network LIN, the first control module is communicatively connected to the vehicle body controller via a controller area network CAN, and the first control module is communicatively connected to the second control module via an ethernet;

the first control module is further used for receiving the signal intensity of the Bluetooth signal broadcast by the terminal and sent by the positioning antenna module through the LIN, and determining the position of the terminal based on the signal intensity;

the second control module is further used for sending an instruction sending request to the first control module through the Ethernet based on the position and the authentication result;

the first control module is also used for responding to the command sending request and sending the vehicle body control command to the vehicle body controller through the CAN.

17. The capsule domain controller of claim 15, wherein the bluetooth module is communicatively coupled to the second control module via a high-speed serial computer expansion bus PCIE link, the PCIE link being configured to transmit bluetooth data;

And/or the Bluetooth module is in communication connection with the first control module through a first general purpose input output port GPIO1, wherein the GPIO1 is used for informing the Bluetooth module of the Bluetooth connection state to the first control module;

and/or the Bluetooth module is in communication connection with the first control module through a second general purpose input/output port GPIO2, wherein the GPIO2 is used for the Bluetooth module to receive a power supply control command of the first control module;

and/or, the Bluetooth module is in communication connection with the first control module through a universal asynchronous receiver/transmitter (UART), and the UART is used for transmitting the running state information of the Bluetooth module to the first control module.

18. The cabin controller according to claim 15, wherein the first control module and the second control module are communicatively connected by a third general purpose input/output GPIO 3;

the first control module is further used for: before the second control module is started in the full-function mode, the second control module is awakened to a quick starting mode through the GPIO 3; and under the condition that the position meets the first position condition, controlling the second control module to switch from the quick start mode to the full function mode through the GPIO 3.

19. The cabin domain controller according to any one of claims 15 to 18, wherein the first control module comprises a micro control unit, MCU, and the second control module comprises a system on chip, SOC, having a hardware security module integrated therein;

the MCU is also used for controlling the SOC to start in a full-function mode; the SOC runs a first application program in the full-function mode;

the first application program is used for calling the hardware security module to carry out Bluetooth key authentication on the terminal based on the Bluetooth connection, and an authentication result is obtained.

20. A vehicle control system, characterized by comprising:

a cabin area controller according to any one of claims 15 to 19, and a locating antenna module and a body controller communicatively connected to the cabin area controller.

21. A vehicle comprising the vehicle control system of claim 20.