CN116880871A - Refreshing method, device, equipment and storage medium of vehicle controller - Google Patents

Refreshing method, device, equipment and storage medium of vehicle controller Download PDF

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Publication number
CN116880871A
CN116880871A CN202310773758.8A CN202310773758A CN116880871A CN 116880871 A CN116880871 A CN 116880871A CN 202310773758 A CN202310773758 A CN 202310773758A CN 116880871 A CN116880871 A CN 116880871A
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CN
China
Prior art keywords
refresh
data
vehicle controller
refreshing
program
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Pending
Application number
CN202310773758.8A
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Chinese (zh)
Inventor
郭盛
高丽娟
吴文琪
王学松
胡奥慈
洪文
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Chery Automobile Co Ltd
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Chery Automobile Co Ltd
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Publication date
Application filed by Chery Automobile Co Ltd filed Critical Chery Automobile Co Ltd
Priority to CN202310773758.8A priority Critical patent/CN116880871A/en
Publication of CN116880871A publication Critical patent/CN116880871A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F8/00—Arrangements for software engineering
    • G06F8/60—Software deployment
    • G06F8/65—Updates
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/4401—Bootstrapping
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/4401—Bootstrapping
    • G06F9/4416—Network booting; Remote initial program loading [RIPL]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/448—Execution paradigms, e.g. implementations of programming paradigms
    • G06F9/4482—Procedural
    • G06F9/4484—Executing subprograms

Abstract

The application discloses a refreshing method, device and equipment of a vehicle controller and a storage medium, and belongs to the technical field of computers. The method comprises the following steps: receiving refresh data of the vehicle controller through a refresh bootstrap program under the condition that the refresh device initiates a program update request for the vehicle controller; performing refreshing of the vehicle controller based on the refresh data by the refresh bootstrap program; wherein the refresh data is used to update the functions of the vehicle controller, the refresh bootstrap program and the refresh data are provided by different providers. By providing the refresh bootstrap program and the refresh data by different providers and integrating the refresh bootstrap program in the vehicle controller. In the process of refreshing the vehicle controller, the provider of the vehicle controller only needs to develop refreshing data aiming at the functions which the vehicle controller needs to update due to the fact that the refreshing guide program is called, and the vehicle controller can be refreshed according to the standard flow, so that the efficiency of refreshing the vehicle controller can be improved.

Description

Refreshing method, device, equipment and storage medium of vehicle controller
Technical Field
The present application relates to the field of computer technologies, and in particular, to a method, an apparatus, a device, and a storage medium for refreshing a vehicle controller.
Background
With the development of electric motor vehicles, the number of vehicle controllers on the vehicles is increasing. Such as controllers related to vehicle powertrain systems, controllers related to vehicle safety systems, controllers related to vehicle comfort systems, and the like.
For refreshing of vehicle controllers, a host factory of the vehicle generally defines a refresh flow operation specification according to which a provider of each vehicle controller performs development work of a refresh program. The refreshing of the vehicle controller, namely the updating of the functions of the vehicle controller, can be realized by transmitting the refreshing program developed by the supplier based on the refreshing flow operation specification to the vehicle controller and running the refreshing program by the vehicle controller.
After the development of the refreshing program of the vehicle controller is finished, the supplier needs to deliver the developed refreshing program to a host factory of the vehicle, and the host factory performs functional test verification and feedback on the refreshing program based on the refreshing flow operation specification until the verification is passed. In the process, a great deal of manpower, funds and time are required to be input, and the efficiency of refreshing the vehicle controller is low.
Disclosure of Invention
The application provides a refreshing method, a refreshing device, refreshing equipment and a storage medium of a vehicle controller, which can improve the efficiency of refreshing the vehicle controller. The technical scheme is as follows:
According to an aspect of the present application, there is provided a refresh method of a controller for a vehicle, the method including:
receiving refreshing data of the vehicle controller through a refreshing guide program under the condition that refreshing equipment initiates a program updating request aiming at the vehicle controller;
executing, by the refresh bootstrap program, a refresh on the vehicle controller based on the refresh data;
wherein the refresh data is used to update the functions of the vehicle controller, the refresh bootstrap program and the refresh data being provided by different providers.
According to another aspect of the present application, there is provided a refresh apparatus of a controller for a vehicle, the apparatus including:
the receiving module is used for receiving the refresh data of the vehicle controller through the refresh bootstrap program under the condition that the refresh equipment initiates a program update request for the vehicle controller;
a refresh module for executing refresh of the vehicle controller based on the refresh data by the refresh boot program;
wherein the refresh data is used to update the functions of the vehicle controller, the refresh bootstrap program and the refresh data being provided by different providers.
In an alternative design, the apparatus further comprises:
the storage module is used for storing the refreshing data through a first subprogram of the refreshing guide program;
and the refreshing module is used for executing a system restarting instruction through a second subprogram of the refreshing guide program so as to enable the vehicle controller to operate according to the stored refreshing data.
In an alternative design, the apparatus further comprises:
the determining module is used for determining the initial storage address of the refresh data in the memory of the controller through the third subprogram of the refresh guide program; the acquisition module is used for acquiring the data length of the refreshing data;
the storage module is used for storing the refreshing data according to the initial storage address and the data length through a first subprogram of the refreshing guide program.
In an alternative design, the receiving module is configured to download, by a fourth subroutine of the refresh bootstrap program, the refresh data based on the refresh device partition;
the storage module is used for sequentially storing the downloaded data blocks of the refreshing data according to the initial storage address through the first subprogram of the refreshing guide program;
The determining module is used for determining that the refresh data is stored in a condition that the total length of the received data blocks of the refresh data is equal to the data length.
In an alternative design, the refresh data downloaded by the refresh device is encrypted data; the apparatus further comprises:
the decryption module is used for decrypting the refresh data downloaded by the refresh device through a fifth subprogram of the refresh bootstrap program;
the storage module is used for storing the refresh data subjected to the decryption processing through a first subprogram of the refresh bootstrap program.
In an alternative design, the apparatus further comprises:
the comparison module is used for comparing a first signature value with a second signature value through a sixth subprogram of the refreshing bootstrap program, wherein the first signature value is acquired through the refreshing equipment, and the second signature value is calculated according to the refreshing data;
and the determining module is used for determining that the acquisition of the refresh data is completed under the condition that the first signature value and the second signature value are determined to be matched.
In an alternative design, the apparatus further comprises:
The checking module is used for checking the integrity of all the functional data of the vehicle controller through a seventh subprogram of the refreshing guide program;
the storage module is used for storing a refreshing completion mark in a first memory area of the vehicle controller under the condition that the integrity check is passed;
the first memory area is used for storing the refresh data, the first memory area is an area except a second memory area in the vehicle controller, the second memory area is used for storing historical version function data corresponding to the function updated by the refresh data, and the refresh completion mark is used for calling the refresh data under the condition that the vehicle controller is started.
In an alternative design, the receiving module is configured to:
receiving the program update request initiated by the refreshing equipment aiming at the vehicle controller;
and receiving refresh data of the vehicle controller through the refresh bootstrap program in the case that the refresh device is determined to pass the security authentication through an eighth subprogram of the refresh bootstrap program.
In an alternative design, the refresh bootstrap program is provided by a host factory of the vehicle and the refresh data is provided by a vendor of the vehicle controller.
In an alternative design, the refresh boot program corresponds to a hardware driver of the vehicle controller; the apparatus further comprises:
the interaction module is used for executing data interaction between the refreshing guide program and the hardware driver of the vehicle controller through an interaction interface in the process of refreshing the vehicle controller;
wherein, the hardware drive of the vehicle controller comprises at least one of the following:
driving a memory;
a communication drive;
and (5) timing driving.
According to another aspect of the present application, there is provided a computer apparatus comprising a processor and a memory having stored therein at least one instruction, at least one program, a set of codes or a set of instructions, the at least one instruction, the at least one program, the set of codes or the set of instructions being loaded and executed by the processor to implement the method of refreshing a vehicle controller as described in the above aspect.
According to another aspect of the present application, there is provided a computer readable storage medium having stored therein at least one instruction, at least one program, a set of codes, or a set of instructions, the at least one instruction, the at least one program, the set of codes, or the set of instructions being loaded and executed by a processor to implement the method of refreshing a vehicle controller as described in the above aspect.
According to another aspect of the present application, there is provided a computer program product or computer program comprising computer instructions stored in a computer readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions so that the computer device performs the refresh method of the vehicle controller provided in various alternative implementations of the above aspect.
The technical scheme provided by the application has the beneficial effects that at least:
by providing the refresh bootstrap program and the refresh data by different providers and integrating the refresh bootstrap program in the vehicle controller. For example, a host factory of the vehicle provides a refresh bootstrap program and a provider of the vehicle controller provides refresh data. In the process of refreshing the vehicle controller, as the refreshing guide program is called, the provider of the vehicle controller only needs to develop refreshing data aiming at the function which needs to be updated of the vehicle controller, and the vehicle controller can be refreshed according to the standard flow without additionally considering the operation specification of the refreshing flow of the vehicle controller, so that the efficiency of refreshing the vehicle controller can be improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an implementation process for refreshing a vehicle controller according to an exemplary embodiment of the present application;
FIG. 2 is a flow chart of a method for refreshing a vehicle controller according to an exemplary embodiment of the present application;
FIG. 3 is a flow chart of a method for refreshing a vehicle controller according to an exemplary embodiment of the present application;
fig. 4 is a schematic structural view of a refresh device of a vehicle controller according to an exemplary embodiment of the present application;
fig. 5 is a schematic structural view of a refresh device of a vehicle controller according to an exemplary embodiment of the present application;
fig. 6 is a schematic structural view of a refresh device of a vehicle controller according to an exemplary embodiment of the present application;
fig. 7 is a schematic structural view of a refresh device of a vehicle controller according to an exemplary embodiment of the present application;
Fig. 8 is a schematic structural view of a refresh device of a vehicle controller according to an exemplary embodiment of the present application;
fig. 9 is a schematic structural view of a refresh device of a vehicle controller according to an exemplary embodiment of the present application;
fig. 10 is a schematic structural view of a refresh device of a vehicle controller according to an exemplary embodiment of the present application;
fig. 11 is a schematic structural view of a computer device according to an exemplary embodiment of the present application.
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 principles of the application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the embodiments of the present application will be described in further detail with reference to the accompanying drawings.
With the development of electric motor vehicles, the number of vehicle controllers on the vehicles is increasing. For refreshing the vehicle controller, a basic refreshing flow operation specification is generally predefined by a host factory to indicate the whole standard flow when refreshing the vehicle controller, for example, whether the vehicle is in a safe state or not needs to be judged when refreshing the vehicle controller, and the vehicle cannot refresh the vehicle controller in the running process. And the suppliers of the vehicle controllers perform development work of the complete refreshing program according to the refreshing flow operation specification, and the vehicle controllers can update the functions provided by the refreshing program by running the refreshing program. After development, the supplier of the vehicle controller delivers the refreshing program to the host factory of the vehicle, tests and verifies the refreshing function, judges whether the refreshing flow provided by the refreshing program accords with the refreshing flow operation specification, and feeds back the problem to the supplier when the problem exists. Therefore, a great deal of manpower, funds and time are required to be invested in the verification work of the refreshing program of all the vehicle controllers on one whole vehicle project, and the efficiency of refreshing the vehicle controllers is low.
The method provided by the embodiment of the application provides a general refreshing guide program, the refreshing guide program and the hardware driver of the vehicle controller are realized through codes and are subjected to modularized design, and the refreshing flow running general standards can be realized through the refreshing guide program. And, a set of standard interactive interface functions is realized to realize the data interaction between the refreshing bootstrap code and the controller hardware driving code. When different vehicle controllers are refreshed, the refresh of the different vehicle controllers can be realized only by changing corresponding hardware driving codes and providing refresh data for a refresh function, so that a great amount of repeated development, test and verification work is saved, and the efficiency of refreshing the vehicle controllers is improved.
Fig. 1 is a schematic diagram of an implementation process for refreshing a vehicle controller according to an exemplary embodiment of the present application. As shown in fig. 1, in the case where a refresh device (e.g., a background server) initiates a program update request for a vehicle controller, the vehicle controller performs security authentication on the refresh device through a security authentication function subroutine of a refresh bootstrap program 101. In the case where the security authentication is passed, the vehicle controller acquires and stores the refresh data of the vehicle controller from the refresh device by combining the request refresh subroutine, the download data subroutine, the data decryption subroutine, and the data refresh subroutine of the refresh bootstrap program 101. And then the vehicle controller performs signature authentication on the refresh data through a data signature authentication subprogram of the refresh bootstrap program 101, and performs integrity check on all functional data of the vehicle controller through a data integrity subprogram, and under the condition that the two items pass, the vehicle controller executes a system restarting instruction through a system restarting operation subprogram of the refresh bootstrap program 101 so as to enable the vehicle controller to operate according to the updated refresh data, thereby realizing the refresh of the vehicle controller.
Wherein, the refresh data is used for updating the functions of the vehicle controller, the refresh bootstrap program 101 is provided by the host factory of the vehicle, and the refresh data is provided by the supplier of the vehicle controller. In addition, in the process of refreshing the vehicle controller by the refresh bootstrap program 101, data interaction between the refresh bootstrap program 101 and the hardware driver 103 of the vehicle controller, that is, calling of the hardware of the vehicle controller, may be involved. In this process, the vehicle controller performs data interaction between the refresh bootstrap program 101 and the hardware driver 103 of the vehicle controller through the interaction interface 102. The hardware driver 103 includes at least one of a memory driver, a communication driver, and a timing driver. The memory driver is used for realizing the related operation of the memory related to the vehicle controller, the communication driver is used for realizing the related operation related to the data transmission of the vehicle controller, and the timing driver is used for realizing the related operation related to the timing of the vehicle controller.
The standardized refresh boot program of the vehicle controller is provided by the host factory of the vehicle, thereby being integrated in the vehicle controller. In the process of refreshing the vehicle controller, the provider of the vehicle controller only needs to develop refreshing data aiming at the functions which the vehicle controller needs to update, and the refreshing flow operation specification of the vehicle controller is not needed to be considered, so that the efficiency of refreshing the vehicle controller can be improved.
Fig. 2 is a flowchart illustrating a refresh method of a vehicle controller according to an exemplary embodiment of the present application. The method can be used for a vehicle controller. As shown in fig. 2, the method includes:
step 202: in the case where the refresh device initiates a program update request for the vehicle controller, refresh data of the vehicle controller is received by the refresh bootstrap program.
The vehicle controller is a controller integrated in the vehicle for managing vehicle components. Such as a controller for managing a vehicle powertrain, a controller for managing a vehicle safety system, a controller for managing a vehicle comfort system, and the like. The vehicles in the embodiment of the application comprise two-wheeled vehicles, three-wheeled vehicles, four-wheeled vehicles and vehicles with more wheels. The driving modes of the vehicle comprise a front drive, a rear drive, a four-drive and the like. Power sources for vehicles include gasoline, electricity, hydrogen, and hybrid power. For example, vehicles include fuel automobiles, electric automobiles, hybrid automobiles, fuel motorcycles, electric bicycles.
The refreshing device is used for managing refreshing of the vehicle controller and providing relevant data used in the process of refreshing the vehicle controller. The refresh device is connected to the vehicle controller by wireless and/or wired means. Alternatively, in the case where the refresh apparatus is wirelessly connected with the vehicle controller, the refresh apparatus is a background server of a provider of the vehicle controller or a background server of a host factory of the vehicle. The program update request is for requesting update of the vehicle controller. Optionally, the program update request is initiated by an associated manager in the event that an update to the vehicle controller is required.
The refresh bootstrap program can provide a function of refreshing the vehicle controller in accordance with a standard flow (unified flow), i.e., the refresh of the vehicle controller can be performed in accordance with the standard flow defined in the refresh bootstrap program by running the refresh bootstrap program. Optionally, the standard flow includes receiving data to refresh the vehicle controller, storing the data to refresh the vehicle controller, and refreshing the vehicle controller according to the stored data. Optionally, the standard procedure provided by the refresh bootstrap program is defined and implemented by a code, and the standard procedure is defined by a host factory of the vehicle.
The refresh data is used to update the functions of the vehicle controller. For example, the refresh data is used to upgrade an existing function of the vehicle controller, or the refresh data is used to realize that the vehicle controller provides a new function in addition to the existing function. The vehicle controller operates according to the refresh data, and the updated function of the refresh data can be obtained. The refresh bootstrap program and the refresh data are provided by different providers. For example, the refresh data is provided by a vendor of the vehicle controller, or by a vendor of the vehicle controller entrusted with third party development, or by a host factory of the vehicle. The refresh bootstrap program is provided by the host factory of the vehicle, or by a third party commissioned by the host factory of the vehicle, or by a vendor of the vehicle controller. In some embodiments, the refresh bootstrap program is provided by a host factory of the vehicle and the refresh data is provided by a vendor of the vehicle controller.
Step 204: the refresh is performed on the vehicle controller based on the refresh data by the refresh bootstrap program.
After the refresh data is received by the refresh guide program, the refresh of the vehicle controller can be realized by running the flow provided by the refresh guide program for updating the vehicle controller according to the refresh data. Optionally, in the process of refreshing the vehicle controller according to the refresh data, the refresh bootstrap program also provides a verification procedure, that is, verifies the refresh data. So as to ensure that the refresh data is not tampered with and/or ensure that the vehicle controller can normally operate after the function of the vehicle controller is updated by using the refresh data. Optionally, after the verification is passed, the refresh bootstrap program executes the system restart, so that the vehicle controller operates according to the refresh data, and the refresh of the vehicle controller is realized.
Optionally, the process of refreshing the vehicle controller via the refresh bootstrap program may involve data interactions between the refresh bootstrap program and the vehicle controller hardware, such as transmitting refresh data, storing refresh data, etc. The refresh boot program corresponds to a hardware driver of the vehicle controller. In the process of refreshing the vehicle controller, the vehicle controller executes data interaction between the refreshing guide program and hardware drive of the vehicle controller (namely, data interaction between the vehicle controller and hardware) through the interaction interface. The provider of the interactive interface is the same as or different from the provider of the refresh bootstrap program, e.g., the provider of the interactive interface and the provider of the refresh bootstrap program are both hosting factories of the vehicle.
In summary, the method provided in this embodiment provides a refresh bootstrap program and refresh data by providing the refresh bootstrap program and the refresh data from different providers, and integrates the refresh bootstrap program into the vehicle controller. For example, a host factory of the vehicle provides a refresh bootstrap program and a provider of the vehicle controller provides refresh data. In the process of refreshing the vehicle controller, as the refreshing guide program is called, the provider of the vehicle controller only needs to develop refreshing data aiming at the function which needs to be updated of the vehicle controller, and the vehicle controller can be refreshed according to the standard flow without additionally considering the operation specification of the refreshing flow of the vehicle controller, so that the efficiency of refreshing the vehicle controller can be improved.
Fig. 3 is a flowchart illustrating a method for refreshing a vehicle controller according to an exemplary embodiment of the present application. The method can be used for a vehicle controller. As shown in fig. 3, the method includes:
step 302: a program update request initiated by a refresh device for a vehicle controller is received.
The vehicle controller is a controller integrated in the vehicle for managing vehicle components. The refreshing device is used for managing refreshing of the vehicle controller and providing relevant data used in the process of refreshing the vehicle controller. The refresh device is connected to the vehicle controller by wireless and/or wired means. The refresh device is referred to as a server, for example. The program update request is for requesting update of the vehicle controller. Optionally, the program update request is initiated by an associated manager in the event that an update to the vehicle controller is required.
Step 304: in the case where it is determined by the eighth subroutine of the refresh bootstrap program that the refresh device passes the security authentication, the refresh data of the vehicle controller is received by the refresh bootstrap program.
The refresh bootstrap program can provide a function of refreshing the vehicle controller according to a standard flow, i.e., by running the refresh bootstrap program, the refresh of the vehicle controller can be performed according to the standard flow defined in the refresh bootstrap program. Optionally, the standard procedure provided by the refresh bootstrap program is defined and implemented by a code, and the standard procedure is defined by a host factory of the vehicle.
The refresh data is used to update the functions of the vehicle controller. For example, the refresh data is used to upgrade an existing function of the vehicle controller, or the refresh data is used to realize that the vehicle controller provides a new function in addition to the existing function. The refresh bootstrap program and the refresh data are provided by different providers. In some embodiments, the refresh bootstrap program is provided by a host factory of the vehicle and the refresh data is provided by a vendor of the vehicle controller.
The eighth subroutine is capable of providing a secure authentication function. Optionally, the program update request carries an identifier of the refresh device, and the eighth subroutine compares the stored identifier of the refresh device passing the security authentication with the identifier carried by the program update request, so as to determine whether the refresh device passes the security authentication. Or the eighth subprogram generates a random number and sends the random number to the refreshing equipment, the refreshing equipment generates a check value according to the random number through a built-in algorithm and sends the check value to the vehicle controller, the eighth subprogram also generates the check value according to the random number through the built-in algorithm, then the generated check value is compared with the check value sent by the refreshing equipment to determine whether the check value is consistent with the check value sent by the refreshing equipment, and if so, the refreshing equipment passes the security authentication. Illustratively, the algorithm corresponding to the eighth subroutine is provided by the host factory of the vehicle. In the case that the refresh device is legal, the algorithm built in the refresh device is the same as the algorithm corresponding to the eighth subroutine.
The refresh boot program includes a first subroutine capable of providing a data flushing function. After receiving the refresh data of the vehicle controller, the refresh bootstrap program stores the refresh data through a first subprogram of the refresh bootstrap program. In the process of storing the refresh data, the first subprogram performs data interaction with a hardware driver related to data storage in the vehicle controller, so that the received refresh data is stored in a memory of the vehicle controller.
The refresh bootstrap program includes a third subroutine capable of providing a request refresh function. In the process of receiving the refresh data, the vehicle controller can determine the initial storage address of the received refresh data in the internal memory of the vehicle controller through the third subprogram of the refresh guiding program, and acquire the data length of the refresh data. Optionally, the initial memory address is randomly determined by the third subroutine in a free area in the memory of the vehicle controller according to the data length. In the process of storing the refresh data through the first subprogram, the vehicle controller stores the received refresh data according to the initial storage address and the data length determined by the third subprogram through the first subprogram of the refresh boot program.
The refresh bootstrap program includes a fourth subroutine capable of providing a download data function. In the process of receiving the refresh data of the vehicle controller, the vehicle controller downloads the refresh data of the vehicle controller in blocks based on the refresh device through a fourth subprogram of the refresh boot program. Alternatively, the size of each data block of the refresh data received by the fourth sub-program may be determined by configuration, the size of the received data block being related to the resources of the vehicle controller hardware itself. For example, the stronger the memory performance of the vehicle controller, the larger the size of the data block received each time. In the process of storing the refresh data according to the initial storage address and the data length through the first subprogram, the vehicle controller sequentially stores the data blocks of the downloaded refresh data according to the initial storage address through the first subprogram of the refresh boot program. And determining that storing the refresh data is completed in a case where the total length of the data blocks of the received refresh data is equal to the data length.
Illustratively, the third subroutine determines that the refresh data has a starting memory address of 00 and a data length of 10. In the process of downloading refreshing data through the fourth subprogram in blocks, the size of each downloaded data block is 2, and the first subprogram sequentially stores the downloaded data blocks according to the initial storage address. When the 5 th data block is stored, the first sub-program determines that the length of the stored data block is 10, which is equal to the data length determined by the third sub-program, and then determines that the refresh data is stored.
Optionally, the refresh data downloaded by the refresh device is encrypted data, and the refresh boot program includes a fifth subroutine capable of providing a data decryption function. In the process of downloading the refresh data through the fourth subprogram and storing the downloaded refresh data through the first subprogram, the vehicle controller decrypts the refresh data downloaded through the refresh device through the fifth subprogram of the refresh boot program. And then storing the decrypted refreshing data through a first subprogram of the refreshing bootstrap program. Optionally, the encrypted data downloaded by the refreshing device is obtained by processing the original data by an encryption algorithm, and in the process of decrypting the data, the fifth subroutine uses the encryption algorithm to process the encrypted data, so as to obtain the original data and store the original data by the first subroutine. Optionally, the encryption algorithm is agreed upon by the host factory of the vehicle with the provider of the refresh data.
Step 306: signature authentication is performed by the sixth subprogram of the refresh boot program.
The refresh bootstrap program includes a sixth subroutine capable of providing a data signature authentication function. After receiving the refresh data, the vehicle controller compares the first signature value with the second signature value through a sixth subroutine of the refresh boot program. In the event that the first signature value and the second signature value are determined to match, it is determined that acquisition of the refresh data is completed. The first signature value is acquired through the refreshing device, and the second signature value is calculated according to the refreshing data. For example, the sixth sub-program calculates the received refresh data by a signature algorithm, so that a second signature value can be obtained, which is later compared with the first signature value sent by the refresh device for the refresh data. By comparing the first signature value with the second signature value, the refreshing data can be prevented from being tampered, and therefore data security is guaranteed.
Step 308: the integrity check is performed by a seventh sub-program of the refresh boot program.
The refresh bootstrap program includes a seventh subroutine capable of providing a data integrity check function. The vehicle controller performs integrity check on all the functional data of the vehicle controller by refreshing the seventh subroutine of the boot program. The full function data is used to implement all functions provided by the vehicle controller, including the function of refreshing data updates. The integrity check is to check whether all functions provided by the vehicle controller are complete after the vehicle controller is refreshed, so that the condition that the vehicle controller is in functional deficiency after refreshing is avoided. For example, the pre-refresh vehicle controller provides functions 1, 2, and 3. After refreshing, it is determined that the vehicle controller provides functions 1 and 2 according to all the function data, and if function 3 is missing, it is determined that the integrity check is failed.
In the case where the integrity check passes, the seventh subroutine stores a refresh complete flag in the first memory area of the vehicle controller. The first memory area is used for storing refresh data, the first memory area is an area except for the second memory area in the vehicle controller, and the second memory area is used for storing historical version functional data corresponding to a function of refreshing data updating. The refresh completion flag is used to instruct the vehicle controller to call the refresh data in the case of starting the vehicle controller, i.e. to provide the functions of the vehicle controller according to the refresh data. Optionally, if the vehicle controller calls the refresh data to start failure, that is, the vehicle controller cannot provide the refresh data update function according to the refresh data, the vehicle controller operates according to the history version function data, so as to ensure that the vehicle controller can operate normally under the condition of failure of refresh.
The refresh bootstrap program corresponds to the hardware driver of the vehicle controller, and in the process of refreshing the vehicle controller, data interaction between the refresh bootstrap program and the hardware driver of the vehicle controller is involved, for example, when the refresh data is stored, the refresh data is stored in the memory of the vehicle controller through data interaction with the hardware driver. Under the condition that different vehicle controllers are different in hardware, the hardware drivers are also different, and data interaction between the refreshing guide program and the hardware drivers of the different vehicle controllers can be realized through the interaction interface. And in the process of refreshing the vehicle controller, executing data interaction between the refreshing guide program and the hardware driver of the vehicle controller through the interaction interface. Alternatively, the interactive interface refers to an interactive interface function, implemented by code, provided by the provider of the refresh bootstrap program, for example by the host factory of the vehicle. The hardware driver of the vehicle controller is provided by the vendor of the vehicle controller. The hardware driver of the vehicle controller includes at least one of:
memory drive;
communication drive;
timing drive.
The memory driver is used for realizing the erasing and writing operation of the memory and the reading operation of the memory information. The communication driver is used for realizing data interaction communication between the vehicle controller and the refreshing device. The timing drive is used for realizing interval processing of message time of data transmission and data reception and judging whether the time interval of data transmission or data reception meets the data transmission specification.
Step 310: and executing a system restart instruction through a second subprogram of the refreshing guide program so as to enable the vehicle controller to operate according to the stored refreshing data.
The refresh boot routine includes a second subroutine that is capable of providing control system restart functions. After the refresh data is received and stored and the verification is passed, the second subprogram executes a system restart instruction under the condition that the restart condition is satisfied, so that the vehicle controller operates according to the stored refresh data, and the vehicle controller can provide the function updated by the refresh data. Illustratively, meeting the restart conditions includes vehicle stationary, vehicle flameout, and vehicle controller restarting does not affect vehicle travel, etc.
Alternatively, in the event that the first user of the vehicle qualifies for internal testing, the refresh bootstrap program can receive the internal test version of the refresh data and refresh the vehicle controller using the internal test version of the refresh data. The version number Gao Yufei of the introspective version of the refresh data provides more/updated functionality than the non-introspective version of the refresh data. The first user with the internal test qualification can authorize a second user of the vehicle with the same type, and send the refresh data of the internal test version to the vehicle of the second user, so that the refresh bootstrap program of the vehicle of the second user can refresh the vehicle controller according to the authorization information and the refresh data of the internal test version. Alternatively, the authorization and sending of the refresh data may be done by wired or wireless means. For example, the refresh data is authorized and transmitted via the vehicle's server, or the first user is wired to the vehicle to derive the authorization information and refresh data, which is then wired to the second vehicle.
Optionally, after refreshing the vehicle controller by refreshing the data, under the condition that an abnormal operation occurs in the running process of the vehicle controller, the vehicle can search for other vehicles with the same type and normal running within a preset range, and acquire the refreshing data of the vehicle controller by the vehicle with the same type, wherein the version of the acquired refreshing data is different from the current refreshing data version. And then, the acquired refreshing data can be used for refreshing the vehicle controller so as to solve the operation abnormality. Alternatively, the process of vehicle search and communication with the same model vehicle is accomplished through a server, base station, or side-by-side communication between vehicles.
Alternatively, in the case where the vehicle cannot connect the refresh apparatus, the vehicle can acquire refresh data currently used by other vehicles of the same model in the vicinity through side-by-side communication. If the version of the acquired refresh data is higher than the refresh data currently used by the vehicle, the vehicle controller is refreshed by the refresh data after the refresh data of the high version is acquired.
In summary, the method provided in this embodiment provides a refresh bootstrap program and refresh data by providing the refresh bootstrap program and the refresh data from different providers, and integrates the refresh bootstrap program into the vehicle controller. For example, a host factory of the vehicle provides a refresh bootstrap program and a provider of the vehicle controller provides refresh data. In the process of refreshing the vehicle controller, as the refreshing guide program is called, the provider of the vehicle controller only needs to develop refreshing data aiming at the function which needs to be updated of the vehicle controller, and the vehicle controller can be refreshed according to the standard flow without additionally considering the operation specification of the refreshing flow of the vehicle controller, so that the efficiency of refreshing the vehicle controller can be improved.
In addition, the refreshing data is downloaded in blocks, so that the resource consumption during the process of downloading the refreshing data can be reduced. Storing the refresh data according to the starting memory address and the data length can ensure the integrity of the received refresh data. The refreshing data can be prevented from being tampered through signature verification, and the data security is ensured. The integrity check can ensure that the vehicle controller has complete functions after refreshing. The device safety authentication can ensure that the vehicle controller is only refreshed by the trusted device, and the safety of the vehicle controller is ensured to be refreshed.
It should be noted that, the sequence of the steps of the method provided in the embodiment of the present application may be appropriately adjusted, the steps may also be increased or decreased according to the situation, and any method that is easily conceivable to be changed by those skilled in the art within the technical scope of the present disclosure should be covered within the protection scope of the present disclosure, so that no further description is given.
The embodiment of the application provides the design and implementation of a general online refreshing guide program, the code design of the refreshing guide program and the specific code of the hardware driver of the vehicle controller are subjected to modularized design, and a set of standard interactive interface function is designed to realize the data interaction between the refreshing guide program and the hardware driver of the vehicle controller. The online refreshing function development of different vehicle controllers can be realized only by changing the driving codes of the vehicle controllers, so that a great amount of repeated development, test and verification work is saved.
The programming of the entire refresh process is divided into 3 parts:
(1) Refresh boot program: all service processing functions of the whole vehicle online refreshing are realized, and the service processing functions comprise safety authentication processing, data message decryption processing, data packet starting address processing, data refreshing length processing, refreshing data signature authentication processing after data refreshing, refreshing end data integrity verification processing and program recovery operation processing after refreshing.
(2) Hardware driver code: the method realizes the signal receiving and transmitting processing of the whole vehicle communication bus, provides a data transmitting and receiving buffer mechanism, provides task scheduling processing, provides timing counting service and provides memory erasing operation service.
(3) Interaction interface code: and realizing the data interaction bridge between the hardware driving parameters and the refreshing guide program.
The embodiment of the application optimizes the refreshing guide program of the automobile controller, adopts the layered modular design concept, and the refreshing guide program part extracts key information in the refreshing flow so as to be arranged into different sub-modules.
The specific design is as follows:
1. the main steps of the refreshing flow are basically designed as follows:
step 1: the safety authentication function is developed, and the function solves the problem that legal refreshing equipment initiates a program update request to a vehicle controller, and only the legal refreshing equipment can pass the safety authentication request to protect the vehicle controller from illegal equipment invasion risks.
Step 2: after step 1 is passed, the software starts to receive the request for the refresh, and the sub-function processes the start address and the data length information used when the refresh boot program is about to start controlling the memory refresh operation.
Step 3: and step 2, after passing, starting to receive the downloaded refreshing data in blocks, wherein the size of the received data block can be determined through configuration, and the size of the received data block is related to the resources of the vehicle controller hardware.
Step 4: after the step 3 is passed, the received refreshing data is required to be decrypted, and after the decryption, the data starts to call the memory writing operation service according to the memory starting address provided by the step 2.
Step 5: and (3) repeating the step (3) and the step (4) until the received data length is equal to the data length information provided in the step (2) according to the data length information received in the step (2).
Step 6: and (3) starting to receive the signature data, processing the data signature values downloaded into the memory in the steps 2 to 5, comparing the received data signature values with the calculated signature values, and finishing refreshing of the block data if the signature passes.
Step 7: after step 6 is completed, if there are other refresh requests, the refresh operations of steps 2 to 6 are repeated. If no other data is requested for refreshing, the whole program of the vehicle controller is checked for integrity, and after the program passes the checking, a refreshing completion mark is written into a specific area of the memory of the vehicle controller.
Step 8: after the step 7 is completed, the execution of a system restarting instruction is started, and the vehicle controller is enabled to operate according to the updated program.
2. The interactive interface part mainly completes the functions of the refreshing guide program and the data interactive interface driven by hardware, and realizes the seamless compiling and linking of the refreshing guide program and the bottom driving code of the vehicle controller. The method comprises the following steps:
memory read, converting the memory read interface function of the hardware driver chip into an interface form of standard for the refresh bootstrap program to call.
Memory write, converting the memory write interface function of the hardware driver chip into an interface form of standard for the refresh bootstrap program to call.
Receive data, convert the receive data interface function of the hardware driver chip into standard interface form for the refresh bootstrap program to call.
Send data, convert the send data interface function of the hardware driver chip into standard interface form for the refresh bootstrap program to call.
Start timing, converting the start timing interface function of the hardware driver chip into an interface form of standard for the refresh bootstrap program to call.
Stop timing, converting the stop timing interface function of the hardware driving chip into an interface form of standard call for the refreshing bootstrap program.
Reset timing, converting the reset timing interface function of the hardware driving chip into an interface form of standard call for the refreshing bootstrap program.
Scheduling processing, providing a scheduling processing mechanism between the individual modules of the refresh bootstrap.
3. The hardware driving part completes the writing of the driving function code of the vehicle controller chip, the partial code is realized in association with the processor of the vehicle controller, and the different vehicle controllers need to re-develop the partial function code. The normal refresh guide program of the vehicle controller can realize the bottom driving function of the refresh guide program only by developing a memory driving module, a communication driving module and a counting driving module.
The memory driving module mainly realizes the erasing operation of the memory and the reading operation function of the memory information.
The communication driving module mainly realizes data interaction communication with the refreshing device, and the vehicle-mounted network CAN realize data interaction among vehicle controllers through a controller local area network (Controller Area Network, CAN) bus mode.
The timing driving module is mainly used for processing the message time intervals of data transmission and data reception and judging whether the data transmission time interval or the data reception time interval meets the data transmission specification.
Fig. 4 is a schematic structural view of a refresh device of a vehicle controller according to an exemplary embodiment of the present application. As shown in fig. 4, the apparatus includes:
a receiving module 401, configured to receive, by means of a refresh bootstrap program, refresh data of a vehicle controller when a refresh device initiates a program update request for the vehicle controller;
a refresh module 402, configured to perform refresh on the vehicle controller based on the refresh data through the refresh bootstrap program;
wherein the refresh data is used to update the functions of the vehicle controller, the refresh bootstrap program and the refresh data being provided by different providers.
In an alternative design, as shown in fig. 5, the apparatus further comprises:
a storage module 403, configured to store the refresh data through a first subroutine of the refresh bootstrap;
the refresh module 402 is configured to execute a system restart instruction through a second subroutine of the refresh bootstrap program, so that the vehicle controller operates according to the stored refresh data.
In an alternative design, as shown in fig. 6, the apparatus further comprises:
a determining module 404, configured to determine, by using a third subroutine of the refresh bootstrap program, a starting storage address of the refresh data in a memory of the controller; an acquiring module 405, configured to acquire a data length of the refresh data;
The storage module 403 is configured to store, by using the first subroutine of the refresh bootstrap program, the refresh data according to the start storage address and the data length.
In an alternative design, the receiving module 401 is configured to download, through a fourth subroutine of the refresh bootstrap program, the refresh data based on the refresh device partition;
the storage module 403 is configured to sequentially store, by using a first subroutine of the refresh bootstrap program, the downloaded data blocks of the refresh data according to the initial storage address;
the determining module 404 is configured to determine that storing the refresh data is completed when the total length of the received data blocks of the refresh data is equal to the data length.
In an alternative design, the refresh data downloaded by the refresh device is encrypted data; as shown in fig. 7, the apparatus further includes:
a decryption module 406, configured to decrypt, by using a fifth subroutine of the refresh bootstrap program, the refresh data downloaded by the refresh device;
the storage module 403 is configured to store, by the first subroutine of the refresh boot program, the refresh data subjected to the decryption process.
In an alternative design, as shown in fig. 8, the apparatus further comprises:
a comparison module 407, configured to compare, by using a sixth subroutine of the refresh bootstrap, a first signature value and a second signature value, where the first signature value is obtained by the refresh device, and the second signature value is calculated according to the refresh data;
a determining module 404, configured to determine that acquisition of the refresh data is completed if it is determined that the first signature value and the second signature value match.
In an alternative design, as shown in fig. 9, the apparatus further comprises:
a checking module 408, configured to perform integrity check on all functional data of the vehicle controller through a seventh subroutine of the refresh boot program;
a storage module 403, configured to store a refresh completion flag in a first memory area of the vehicle controller if the integrity check passes;
the first memory area is used for storing the refresh data, the first memory area is an area except a second memory area in the vehicle controller, the second memory area is used for storing historical version function data corresponding to the function updated by the refresh data, and the refresh completion mark is used for calling the refresh data under the condition that the vehicle controller is started.
In an alternative design, the receiving module 401 is configured to:
receiving the program update request initiated by the refreshing equipment aiming at the vehicle controller;
and receiving refresh data of the vehicle controller through the refresh bootstrap program in the case that the refresh device is determined to pass the security authentication through an eighth subprogram of the refresh bootstrap program.
In an alternative design, the refresh bootstrap program is provided by a host factory of the vehicle and the refresh data is provided by a vendor of the vehicle controller.
In an alternative design, the refresh boot program corresponds to a hardware driver of the vehicle controller; as shown in fig. 10, the apparatus further includes:
the interaction module 409 is configured to perform, in a process of refreshing the vehicle controller, data interaction between the refresh bootstrap program and a hardware driver of the vehicle controller through an interaction interface;
wherein, the hardware drive of the vehicle controller comprises at least one of the following:
driving a memory;
a communication drive;
and (5) timing driving.
It should be noted that: the refreshing device of the vehicle controller provided in the above embodiment is only exemplified by the division of the above functional modules, and in practical application, the above functional allocation may be performed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules, so as to complete all or part of the functions described above. In addition, the refresh device of the vehicle controller provided in the above embodiment belongs to the same concept as the refresh method embodiment of the vehicle controller, and the detailed implementation process of the refresh device is referred to the method embodiment, which is not repeated here.
Embodiments of the present application also provide a computer device comprising: the vehicle controller refreshing method comprises a processor and a memory, wherein at least one instruction, at least one section of program, a code set or an instruction set is stored in the memory, and the at least one instruction, the at least one section of program, the code set or the instruction set is loaded and executed by the processor to realize the refreshing method of the vehicle controller provided by each method embodiment.
Optionally, the computer device is a server. Fig. 11 is a schematic diagram illustrating a structure of a computer device according to an exemplary embodiment of the present application.
The computer apparatus 1100 includes a central processing unit (Central Processing Unit, CPU) 1101, a system Memory 1104 including a random access Memory (Random Access Memory, RAM) 1102 and a Read-Only Memory (ROM) 1103, and a system bus 1105 connecting the system Memory 1104 and the central processing unit 1101. The computer device 1100 also includes a basic Input/Output system (I/O) 1106, which helps to transfer information between the various devices within the computer device, and a mass storage device 1107 for storing an operating system 1113, application programs 1114, and other program modules 1115.
The basic input/output system 1106 includes a display 1108 for displaying information and an input device 1109, such as a mouse, keyboard, etc., for a user to input information. Wherein the display 1108 and the input device 1109 are both coupled to the central processing unit 1101 through an input-output controller 1110 coupled to the system bus 1105. The basic input/output system 1106 may also include an input/output controller 1110 for receiving and processing input from a number of other devices, such as a keyboard, mouse, or electronic stylus. Similarly, the input output controller 1110 also provides output to a display screen, a printer, or other type of output device.
The mass storage device 1107 is connected to the central processing unit 1101 through a mass storage controller (not shown) connected to the system bus 1105. The mass storage device 1107 and its associated computer-readable storage medium provide non-volatile storage for the computer device 1100. That is, the mass storage device 1107 may include a computer-readable storage medium (not shown) such as a hard disk or a compact disk-Only (CD-ROM) drive.
The computer-readable storage medium may include computer storage media and communication media without loss of generality. Computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable storage instructions, data structures, program modules or other data. Computer storage media includes RAM, ROM, erasable programmable read-Only register (Erasable Programmable Read Only Memory, EPROM), electrically erasable programmable read-Only Memory (EEPROM), flash Memory or other solid state Memory devices, CD-ROM, digital versatile disks (Digital Versatile Disc, DVD) or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices. Of course, those skilled in the art will recognize that the computer storage medium is not limited to the one described above. The system memory 1104 and mass storage device 1107 described above may be collectively referred to as memory.
The memory stores one or more programs configured to be executed by the one or more central processing units 1101, the one or more programs containing instructions for implementing the above-described method embodiments, the central processing unit 1101 executing the one or more programs to implement the methods provided by the various method embodiments described above.
According to various embodiments of the application, the computer device 1100 may also operate by a remote computer device connected to the network through a network, such as the Internet. I.e., the computer device 1100 may be connected to the network 1112 through a network interface unit 1111 coupled to the system bus 1105, or the network interface unit 1111 may be used to connect to other types of networks or remote computer device systems (not shown).
The memory also includes one or more programs stored in the memory, the one or more programs including steps for performing the methods provided by the embodiments of the present application, as performed by the computer device.
The embodiment of the application also provides a computer readable storage medium, wherein at least one instruction, at least one section of program, code set or instruction set is stored in the readable storage medium, and when the at least one instruction, the at least one section of program, the code set or the instruction set is loaded and executed by a processor of computer equipment, the refreshing method of the vehicle controller provided by the embodiment of the method is realized.
The present application also provides a computer program product or computer program comprising computer instructions stored in a computer readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device executes the refresh method of the vehicle controller provided by the above-mentioned method embodiments.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program for instructing relevant hardware, where the program may be stored in a computer readable storage medium, and the above readable storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The foregoing description of the preferred embodiments of the application is not intended to limit the application to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the application are intended to be included within the scope of the application.

Claims (10)

1. A method of refreshing a vehicle controller, the method being applied to the vehicle controller, the method comprising:
receiving refreshing data of the vehicle controller through a refreshing guide program under the condition that refreshing equipment initiates a program updating request aiming at the vehicle controller;
executing, by the refresh bootstrap program, a refresh on the vehicle controller based on the refresh data;
wherein the refresh data is used to update the functions of the vehicle controller, the refresh bootstrap program and the refresh data being provided by different providers.
2. The method of claim 1, wherein the performing, by the refresh bootstrap program, a refresh of the vehicle controller based on the refresh data comprises:
storing the refresh data by a first subroutine of the refresh bootstrap;
and executing a system restart instruction through a second subprogram of the refreshing guide program so as to enable the vehicle controller to operate according to the stored refreshing data.
3. The method according to claim 2, wherein the method further comprises:
determining an initial storage address of the refresh data in a memory of the vehicle controller through a third subprogram of the refresh bootstrap program; and acquiring the data length of the refreshing data;
the storing, by the first subroutine of the refresh bootstrap, the refresh data includes:
and storing the refreshing data according to the initial storage address and the data length through a first subprogram of the refreshing guide program.
4. A method according to claim 3, wherein said receiving refresh data of the vehicle controller by a refresh bootstrap program comprises:
downloading the refresh data in blocks based on the refresh device by a fourth subprogram of the refresh boot program;
The storing, by the first subroutine of the refresh bootstrap, the refresh data according to the start storage address and the data length, includes:
sequentially storing the downloaded data blocks of the refresh data according to the initial storage address by a first subprogram of the refresh bootstrap program;
and determining that the storage of the refresh data is completed in the case that the total length of the received data blocks of the refresh data is equal to the data length.
5. The method according to any one of claims 1 to 4, further comprising:
comparing, by a sixth subroutine of the refresh bootstrap, a first signature value obtained by the refresh device with a second signature value calculated from the refresh data;
and determining that acquisition of the refresh data is completed under the condition that the first signature value and the second signature value are matched.
6. The method according to claim 2, wherein the method further comprises:
carrying out integrity check on all functional data of the vehicle controller through a seventh subprogram of the refreshing guide program;
Storing a refresh completion flag in a first memory area of the vehicle controller if the integrity check passes;
the first memory area is used for storing the refresh data, the first memory area is an area except a second memory area in the vehicle controller, the second memory area is used for storing historical version function data corresponding to the function updated by the refresh data, and the refresh completion mark is used for calling the refresh data under the condition that the vehicle controller is started.
7. A refresh device for a vehicle controller, the device comprising:
the receiving module is used for receiving the refresh data of the vehicle controller through the refresh bootstrap program under the condition that the refresh equipment initiates a program update request for the vehicle controller;
a refresh module for executing refresh of the vehicle controller based on the refresh data by the refresh boot program;
wherein the refresh data is used to update the functions of the vehicle controller, the refresh bootstrap program and the refresh data being provided by different providers.
8. A computer device comprising a processor and a memory, wherein the memory has stored therein at least one program that is loaded and executed by the processor to implement a method of refreshing a vehicle controller according to any one of claims 1 to 6.
9. A computer-readable storage medium, wherein at least one program is stored in the readable storage medium, the at least one program being loaded and executed by a processor to implement the refresh method of the vehicle controller according to any one of claims 1 to 6.
10. A computer program product, characterized in that it comprises computer instructions stored in a computer-readable storage medium, from which computer instructions a processor of a computer device reads, the processor executing the computer instructions, causing the computer device to perform a method of refreshing a vehicle controller according to any one of claims 1 to 6.
CN202310773758.8A 2023-06-27 2023-06-27 Refreshing method, device, equipment and storage medium of vehicle controller Pending CN116880871A (en)

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