CN112799370B - Control device, and vehicle-mounted system software restoration method and system - Google Patents
Control device, and vehicle-mounted system software restoration method and system Download PDFInfo
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- CN112799370B CN112799370B CN201911028358.4A CN201911028358A CN112799370B CN 112799370 B CN112799370 B CN 112799370B CN 201911028358 A CN201911028358 A CN 201911028358A CN 112799370 B CN112799370 B CN 112799370B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0208—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
- G05B23/0213—Modular or universal configuration of the monitoring system, e.g. monitoring system having modules that may be combined to build monitoring program; monitoring system that can be applied to legacy systems; adaptable monitoring system; using different communication protocols
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24065—Real time diagnostics
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Abstract
The invention relates to a control device, a vehicle-mounted system software restoration method and a system thereof. The method comprises the following steps: step S1, receiving application program fault signals of each ECU in real time; step S2, acquiring corresponding application program programming files from a storage device according to the ECU application program fault signals, wherein the application program programming files of the ECUs are stored in the storage device in advance; and step S3, restoring the failed ECU application program according to the acquired application program programming file. The control device is used for realizing the method, and the system comprises one or more control devices and the vehicle-mounted terminal. According to the invention, the size of a memory is not required to be increased for each ECU to back up the application program, so that the design and development of the ECU are not increased, and meanwhile, the application program can be restored to the ECU in time under the condition that the ECU application program has problems.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to a control device, a vehicle-mounted system software restoration method and a vehicle-mounted system software restoration system.
Background
With the increasing number of the vehicle-mounted ECUs, the frequency of upgrading the functions of the software is increased, and the probability of failure problems is increased. When the application software of the ECU which normally runs has problems, there are two processing modes: the first is that the ECU has a backup recovery function, the ECU performs the backup recovery by itself, generally, the ECU adds a safety space for storing a backup code of ECU application software, when the application software of the ECU which normally runs has a problem, the BootLoader of the ECU can detect the abnormality, and then the recovery process of the application software is executed. The second is that the ECU has no backup recovery function, and only can be rescued on site after a problem occurs.
The above treatment method has the following technical defects:
in the first mode, the ECU is required to be designed as application software backup functional software, so that the design and development cost of each ECU is increased, the size of FLASH is required to be increased, and the chip cost of each ECU is increased, so that the cost of the whole vehicle is greatly increased on the whole; although the second mode can save the cost of the whole vehicle, when the application software of the ECU which normally runs has problems, the processing is not timely, and the efficiency is low.
Therefore, it is desirable to provide a new software recovery technique for an onboard system to overcome the above technical drawbacks of the conventional ECU application software problem handling method.
Disclosure of Invention
The invention aims to provide a control device, a vehicle-mounted system software restoration method and a system thereof, so as to overcome the technical defects of the conventional ECU application software problem processing mode.
In a first aspect, an embodiment of the present invention provides a method for restoring vehicle-mounted system software, including the following steps:
step S1, receiving application program fault signals of each ECU in real time;
step S2, acquiring corresponding application program programming files from a storage device according to the ECU application program fault signals, wherein the application program programming files of the ECUs are stored in the storage device in advance;
and step S3, restoring the failed ECU application program according to the acquired application program programming file.
Wherein the step S1 includes:
when each ECU is powered on, the start loading module of each ECU carries out integrity detection on the application program of each ECU, and if the application program of one ECU is incomplete, the ECU generates a corresponding application program fault signal.
Wherein the step S1 includes:
in the running process of each ECU, if the application program function execution of one ECU is abnormal, the ECU generates a corresponding application program fault signal.
Wherein the step S2 includes:
determining a faulty ECU application according to the received application fault signal;
and acquiring a programming file of the corresponding ECU application program from the storage device according to the ECU application program with the fault.
Wherein the step S3 includes:
generating fault prompt signals according to the fault signals of the ECU application programs;
the vehicle-mounted terminal prompts a user that an ECU of the vehicle-mounted system has a fault according to the fault prompt signal;
receiving user input information sent by a vehicle-mounted terminal;
restoring the faulty ECU application program according to the user input information and the acquired application program programming file; when the user information confirms that the faulty ECU application program is restored, the faulty ECU application program is restored according to the acquired application program programming file, and when the user information does not restore the faulty ECU application program, the faulty ECU application program is not restored.
Wherein the method further comprises:
and recording the fault according to the fault signal of the application program.
In a second aspect, an embodiment of the present invention provides a control device, configured to implement the vehicle-mounted system software restoration method according to the embodiment, where the control device includes:
the information receiving module is used for receiving application program fault signals of all the ECUs in real time;
the storage equipment is used for pre-storing the programming files of the application programs of the ECUs;
the programming file acquisition module is used for acquiring corresponding application programming files from the storage device according to the fault signals of the ECU applications;
and the program restoring module is used for restoring the ECU application program with the fault according to the acquired application program programming file.
Wherein, still include:
and the fault recording unit is used for recording faults according to the application program fault signals.
In a third aspect, an embodiment of the present invention provides an on-board system software restoration system, including one or more control devices according to the embodiment, where each control device is respectively connected to a plurality of corresponding ECUs through a CAN bus in a communication manner.
The vehicle-mounted terminal is used for prompting the user that the ECU of the vehicle-mounted system has a fault according to the fault prompt signals of the one or more control devices, receiving user input information and sending the user input information to the one or more control devices.
The embodiment of the invention provides a control device, a vehicle-mounted system software restoration method and a system thereof, which are characterized in that application program programming files of all ECUs are generated in advance and stored in a storage device of a control device (such as a gateway), the control device receives application program fault signals of all the ECUs in real time and monitors whether all the ECUs work normally, and when the control device identifies that an ECU application program of a certain node has a fault, the control device records the fault and restores the ECU application program. Meanwhile, a fault signal can be generated according to the fault condition of the node ECU application program, the vehicle-mounted terminal prompts a user of the fault and whether the ECU application program is restored or not according to the fault signal, and finally, the control device restores the faulty ECU application program according to user input information and the acquired application program programming file. According to the scheme of the embodiment of the invention, the size of a memory does not need to be increased for each ECU to backup the application program, so that the design and development of the ECU are not increased, and meanwhile, the application program can be restored to the ECU in time under the condition that the ECU application program has problems.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings. Of course, not all of the advantages described above need to be achieved at the same time in the practice of any one product or method of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart of a method for restoring vehicle-mounted system software according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a control device according to a second embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a vehicle-mounted system software restoration system in a third embodiment of the present invention.
Detailed Description
Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
In addition, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present invention. It will be understood by those skilled in the art that the present invention may be practiced without some of these specific details. In some instances, well known means have not been described in detail so as not to obscure the present invention.
Example one
The first embodiment of the invention provides a vehicle-mounted system software restoration method, which can be applied to the control device according to the second embodiment of the invention. It should be noted that the form of implementing the method according to the embodiment of the present invention is not limited to the control device described in the second embodiment.
The method of the first embodiment of the present invention will be described in detail below by taking the control device of the second embodiment as an example.
Fig. 1 is a schematic flow chart of a vehicle-mounted system software restoration method according to a first embodiment of the present invention, and referring to fig. 1, the method according to the first embodiment includes the following steps S101 to S103:
in a first aspect, an embodiment of the present invention provides a method for restoring vehicle-mounted system software, including the following steps:
step S101, receiving application program fault signals of all ECUs in real time;
specifically, the on-board system includes a plurality of ECUs, each ECU implements a corresponding control function, for example, ECU control modules such as a body control device (BCM), a front door control device (FDCM), and a vehicle control device (VCU), and in the step, the on-board system may be divided into domain systems, so that each domain system includes a plurality of ECUs. Accordingly, the application update of each ECU in each domain system can be controlled by the control device according to the second embodiment.
Wherein, each ECU generates a corresponding application program fault signal according to the running condition of the application program of the ECU and sends the signal to the control device.
Preferably, the control device in this embodiment is a gateway device in a vehicle communication system.
Step S102, acquiring corresponding application program programming files from a storage device according to the ECU application program fault signals, wherein the application program programming files of the ECUs are stored in the storage device in advance;
specifically, before executing the method of the present embodiment, an application programming file of each ECU is generated, which is generally in a BIN format, and the upper computer or the diagnostic device establishes secure communication with the control device through a CAN or an ethernet, and the upper computer or the diagnostic device sends the application programming file of each ECU to the control device, and the control device confirms the integrity of the application programming file and writes the application programming file into an internal or external storage device. Therefore, after receiving the application program fault signal of each ECU, the control device may determine, by the programming file acquisition module of the control device, the faulty ECU sub-module according to the application program fault signal of each ECU, and then acquire the application program programming file corresponding to the faulty ECU sub-module from the storage device.
And step S103, restoring the failed ECU application program according to the acquired application program programming file.
Wherein the step S101 includes:
(1) when each ECU is powered on, a start loading module (BOOTLOADER) of each ECU carries out integrity detection on the application program of each ECU, and if the application program of one ECU is incomplete, the ECU generates a corresponding application program fault signal;
for example, when the vehicle body control device is powered on, the start loading module of the vehicle body control device detects the integrity of its own application program, such as cheksum, and if the application program is incomplete, for example, the application program is reprogrammed, a corresponding application program fault signal (in the form of a message) is generated, the content includes the vehicle body control device application program fault, and the message is sent to the control device to request for updating the application program of the vehicle body control device;
(2) in the running process of each ECU, if the application program function execution of one ECU is abnormal, the ECU generates a corresponding application program fault signal;
for example, the vehicle body control device monitors the execution state of its own application program in real time, the vehicle body control device always runs application program codes normally, when the vehicle body control device program runs in a problem, namely the vehicle body control function is in failure, a corresponding application program failure signal (message form) is generated, the content comprises the vehicle body control device application program failure, and the application program failure signal is sent to the control device to request for updating the vehicle body control device application program.
Wherein the step S102 includes:
step S201, determining a faulted ECU application program according to the received application program fault signal;
and step S202, acquiring a programming file of the corresponding ECU application program from a storage device according to the ECU application program with the fault.
Wherein the step S103 includes:
and S301, generating a fault prompt signal according to the fault signal of each ECU application program.
Step S302, the vehicle-mounted terminal prompts a user that an ECU of the vehicle-mounted system fails according to the failure prompt signal; specifically, the vehicle-mounted terminal at least comprises a display and an input unit, wherein the display is used for displaying relevant information for prompting a user that an ECU of the vehicle-mounted system fails and prompting the user to input confirmation or cancellation of ECU application program restoration through the input unit.
Step S303, receiving user input information sent by the vehicle-mounted terminal; specifically, the user input information includes confirmation of the user input or cancellation of the ECU application restoration.
S304, restoring the faulty ECU application program according to the user input information and the acquired programming file of the application program; when the user information confirms that the faulty ECU application program is restored, the faulty ECU application program is restored according to the acquired application program programming file, and when the user information does not restore the faulty ECU application program, the faulty ECU application program is not restored.
Specifically, after the control device receives the confirmation and restoration of the vehicle-mounted terminal, the control device realizes the same flow as the diagnostic instrument, application program restoration can be carried out on the corresponding node ECU through the program restoration module, and after the completion, the node ECU is reset, and the function is recovered to be normal; after the control device receives the confirmation of the vehicle-mounted terminal to cancel, because the fault exists all the time, the user can see the prompt fault of the display and request to restore information when the user is powered off and awakened.
Preferably, the vehicle-mounted terminal may further include a voice device, and the voice device may prompt the user that the ECU of the vehicle-mounted system is faulty in a voice broadcast manner according to the fault prompt signal.
Wherein the method further comprises:
and step 400, recording faults according to the application program fault signals. This step may be implemented by a fault logging unit, the fault logging content comprising at least fault event content and fault time information, such as: the vehicle body controller fails, and the failure time is 2019, 10, 24, 14: 23.
The embodiment realizes the software restoration function of the ECU submodule in each domain system, and the ECU submodule does not need to perform backup restoration processing; the backup and restoration of the domain system are controlled by a control device of the domain system, and the ECU submodule is not designed and developed to achieve unified management; moreover, the condition for establishing the secure communication with the ECU submodule is in the solidified code of the control device, so that the information security attack can not be caused.
Example two
Referring to fig. 2, a second embodiment of the present invention provides a control device 100, configured to implement a vehicle-mounted system software restoration method according to the second embodiment, where the control device 100 includes:
the information receiving module 1 is used for receiving application program fault signals of all ECUs in real time;
the storage device 2 is used for storing application program programming files of the ECUs in advance;
the programming file acquisition module 3 is used for acquiring the corresponding application programming files from the storage device according to the fault signals of the ECU applications;
the program restoring module 4 is used for restoring the ECU application program with the fault according to the acquired application program programming file;
and the fault recording unit 5 is used for recording faults according to the application fault signals.
It should be noted that one or more of the information receiving module 1, the programming file obtaining module 3, the program restoring module 4, and the fault recording unit 5 may be integrated into one module to be implemented, and the division of the functional modules in this embodiment does not constitute a limitation on the setting of the modules in the physical structure.
Wherein, the programming file obtaining module 3 includes:
the determining unit is used for determining a faulted ECU application program according to the application program fault signal;
and the file acquisition unit is used for acquiring the programming file of the corresponding ECU application program from the storage device according to the ECU application program with the fault.
Wherein, the program restoring module 4 comprises:
the signal generating unit is used for generating fault prompt signals according to the fault signals of the ECU application programs and sending the fault prompt signals to the vehicle-mounted terminal;
the signal receiving unit is used for receiving user input information sent by the vehicle-mounted terminal;
the execution restoration unit is used for restoring the ECU application program with the fault according to the user input information and the acquired application program programming file; when the user information confirms that the faulty ECU application program is restored, the faulty ECU application program is restored according to the acquired application program programming file, and when the user information does not restore the faulty ECU application program, the faulty ECU application program is not restored.
It should be noted that the system according to the second embodiment corresponds to the method according to the first embodiment, and therefore, a part of the system according to the second embodiment that is not described in detail can be obtained by referring to the content of the method according to the first embodiment, and is not described again here.
Based on the first and second embodiments of the present invention, it is obvious to those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can be implemented by hardware, but the former embodiment is better in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions to enable a computer device (which may be a personal computer or a network device) to implement the methods or apparatuses according to the embodiments of the present invention.
EXAMPLE III
A third embodiment of the present invention provides a vehicle-mounted system software restoration system, referring to fig. 3, which includes one or more control devices 100 as described in the second embodiment, and each control device 100 is respectively connected to a plurality of corresponding ECUs through a CAN bus in a communication manner. It should be noted that the number of control devices and ECUs in fig. 3 is merely an example.
The vehicle-mounted terminal 6 is used for prompting a user that an ECU of the vehicle-mounted system has a fault according to a fault prompt signal of the control device 100, receiving user input information and sending the user input information to the one or more control devices 100.
Based on the description of the above embodiments, the embodiments of the present invention provide a control device, a method for restoring vehicle-mounted system software, and a system thereof, where application programming files of ECUs are generated in advance and stored in a storage device of a control device (e.g., a gateway), the control device receives application failure signals of the ECUs in real time, monitors whether the ECUs are working normally, and when the control device identifies an ECU application failure at a certain node, the control device records the failure and restores the ECU application. Meanwhile, a fault signal can be generated according to the fault condition of the node ECU application program, the vehicle-mounted terminal prompts a user of the fault and whether the ECU application program is restored or not according to the fault signal, and finally, the control device restores the faulty ECU application program according to user input information and the acquired application program programming file. According to the scheme of the embodiment of the invention, the size of a memory does not need to be increased for each ECU to backup the application program, so that the design and development of the ECU are not increased, and meanwhile, the application program can be restored to the ECU in time under the condition that the ECU application program has problems.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (9)
1. A vehicle-mounted system software restoration method is characterized by comprising the following steps:
step S1, receiving application program fault signals of each ECU in real time;
step S2, acquiring corresponding application programming files from a storage device according to the application fault signals of the ECUs, wherein the application programming files of the ECUs are stored in the storage device in advance;
s3, restoring the faulty ECU application program according to the acquired application program programming file; generating a fault prompt signal according to the fault signal of each ECU application program, wherein the fault prompt signal is used for prompting a user that the ECU of the vehicle-mounted system has a fault; receiving user input information, and restoring the faulty ECU according to the user input information and the acquired programming file of the application program; and when the user information confirms that the faulty ECU application program is restored, restoring the faulty ECU application program according to the acquired application program programming file, and when the user information does not restore the faulty ECU application program, not restoring the faulty ECU application program.
2. The vehicle-mounted system software restoration method according to claim 1, wherein the step S1 includes:
when each ECU is powered on, the start loading module of each ECU carries out integrity detection on the application program of each ECU, and if the application program of one ECU is incomplete, the ECU generates a corresponding application program fault signal.
3. The vehicle-mounted system software restoration method according to claim 1 or 2, wherein the step S1 includes:
in the running process of each ECU, if the application program function execution of one ECU is abnormal, the ECU generates a corresponding application program fault signal.
4. The vehicle-mounted system software restoration method according to claim 3, wherein the step S2 includes:
determining a faulty ECU application according to the received application fault signal;
and acquiring a programming file of the corresponding ECU application program from the storage device according to the ECU application program with the fault.
5. The vehicle-mounted system software restoration method according to claim 3, wherein the method further comprises:
and recording the fault according to the fault signal of the application program.
6. A control apparatus for implementing the in-vehicle system software restoration method according to any one of claims 1 to 5, the control apparatus comprising:
the information receiving module is used for receiving application program fault signals of all the ECUs in real time;
the storage equipment is used for pre-storing the programming files of the application programs of the ECUs;
the programming file acquisition module is used for acquiring corresponding application programming files from the storage device according to the fault signals of the ECU applications;
the program restoring module is used for restoring the ECU application program with the fault according to the acquired application program programming file; generating a fault prompt signal according to the fault signal of each ECU application program, wherein the fault prompt signal is used for prompting a user that the ECU of the vehicle-mounted system has a fault; receiving user input information, and restoring the faulty ECU according to the user input information and the acquired programming file of the application program; and when the user information confirms that the faulty ECU application program is restored, restoring the faulty ECU application program according to the acquired application program programming file, and when the user information does not restore the faulty ECU application program, not restoring the faulty ECU application program.
7. The control apparatus according to claim 6, further comprising:
and the fault recording unit is used for recording faults according to the application program fault signals.
8. An on-board system software restoration system, characterized by comprising one or more control devices according to claim 6 or 7, wherein each control device is respectively connected with a plurality of corresponding ECUs through CAN bus communication.
9. The vehicle-mounted system software recovery system of claim 8, comprising a vehicle-mounted terminal for prompting a user of a fault of an ECU of the vehicle-mounted system according to the fault prompt signal of one or more control devices, receiving user input information and transmitting the user input information to the corresponding control device.
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