CN117519065A - Vehicle central computing architecture fault diagnosis method and device - Google Patents
Vehicle central computing architecture fault diagnosis method and device Download PDFInfo
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- G—PHYSICS
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
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- 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
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Abstract
The invention discloses a fault diagnosis method and device for a vehicle central computing architecture, and relates to the technical field of vehicle fault diagnosis. The method comprises the following steps: judging whether the central computing unit issues a power-on and power-off instruction corresponding to a load when the vehicle is powered on and powered off; if the central computing unit does not issue the power-on and power-off instruction, judging that the central computing unit is abnormal; if the central computing unit issues a power-on and power-off instruction, judging whether the domain controller receives the power-on and power-off instruction or not; if the domain controller receives the power-on and power-off instruction, the domain controller acquires the working current of the load; if the working current is in a current abnormal state corresponding to the power-on and power-off instruction, judging that at least one of the local controller, the load and a driving loop wire harness of the load is abnormal; if the domain controller does not receive the power-on and power-off instruction, the domain controller is judged to be abnormal. The invention can realize fault diagnosis of the central computing architecture.
Description
Technical Field
The invention relates to the technical field of vehicle fault diagnosis, in particular to a vehicle central computing architecture fault diagnosis method and device.
Background
The central computing architecture of the vehicle is composed of a central computing unit, a domain controller and a load, when the load is powered on and powered off, the central computing unit issues instructions to the domain controller, and the domain controller drives the load or shuts down the drive according to the instructions. After the central computing architecture of the vehicle is abnormal, the load cannot be normally powered on or powered off, and normal use of the vehicle functions can be affected. Therefore, to ensure the normal operation of the vehicle function, the problem of how to perform fault diagnosis on the central computing architecture of the vehicle needs to be considered.
Disclosure of Invention
The invention solves the technical problem of how to carry out fault diagnosis on the vehicle central computing architecture by providing the vehicle central computing architecture fault diagnosis method and device.
In one aspect, the present invention provides the following technical solutions:
a vehicle central computing architecture fault diagnosis method, the central computing architecture comprising a central computing unit, a domain controller, and a load, the central computing unit issuing instructions to control the domain controller to drive the load, the method comprising:
judging whether the central computing unit issues a power-on and power-off instruction corresponding to the load when the vehicle is powered on and powered off;
if the central computing unit does not issue the power-on and power-off instruction, judging that the central computing unit is abnormal;
if the central computing unit issues the power-on and power-off instruction, judging whether the domain controller receives the power-on and power-off instruction or not;
if the domain controller receives the power-on and power-off instruction, the working current of the load is obtained; if the working current is in a current abnormal state corresponding to the power-on and power-off instruction, judging that at least one of the domain controller, the load and a driving loop wire harness of the load is abnormal;
and if the domain controller does not receive the power-on and power-off instruction, judging that the domain controller is abnormal.
Optionally, if the power-on and power-off instruction is a power-on instruction, the current abnormal state is that the working current is zero; and if the power-on and power-off instruction is a power-off instruction, the current abnormal state is that the working current is not zero.
Optionally, the domain controller includes a communication board and a driving board, where the central computing unit, the communication board, the driving board, and the load are sequentially connected in communication;
and if the working current is in the current abnormal state corresponding to the power-on and power-off instruction, judging that at least one of the domain controller and the load is abnormal, and further comprising:
if the domain controller is judged to be abnormal, acquiring the first information quantity of the power-on and power-off instructions sent by the communication board and the second information quantity of the power-on and power-off instructions received by the driving board;
and if the first information quantity is different from the second information quantity, judging that the communication between the communication board and the driving board is abnormal.
Optionally, the domain controller includes a communication board and a driving board, the driving board includes a processor and a driving chip, and the central computing unit, the communication board, the processor, the driving chip and the load are sequentially connected in a communication manner;
and if the working current is in the current abnormal state corresponding to the power-on and power-off instruction, determining that at least one of the domain controller, the load and the driving circuit harness of the load is abnormal, and further comprising:
if the domain controller is judged to be abnormal, acquiring the third information quantity of the power-on and power-off instructions sent by the processor and the fourth information quantity of the power-on and power-off instructions received by the driving chip;
and if the third information quantity is different from the fourth information quantity, judging that the communication between the processor and the driving chip is abnormal.
On the other hand, the invention also provides the following technical scheme:
a vehicle central computing architecture fault diagnosis apparatus, the central computing architecture comprising a central computing unit, a domain controller, and a load, the central computing unit issuing instructions to control the domain controller to drive the load, the apparatus comprising:
the judging module is used for judging whether the central computing unit issues a power-on and power-off instruction corresponding to the load when the vehicle is powered on and powered off; if the central computing unit does not issue the power-on and power-off instruction, judging that the central computing unit is abnormal; if the central computing unit issues the power-on and power-off instruction, judging whether the domain controller receives the power-on and power-off instruction or not;
the acquisition module is used for acquiring the working current of the load if the domain controller receives the power-on and power-off instruction;
the judging module is further configured to judge that at least one of the domain controller, the load, and a driving circuit harness of the load is abnormal if the working current is in a current abnormal state corresponding to the power-on and power-off command; and if the domain controller does not receive the power-on and power-off instruction, judging that the domain controller is abnormal.
Optionally, if the power-on and power-off instruction is a power-on instruction, the current abnormal state is that the working current is zero; and if the power-on and power-off instruction is a power-off instruction, the current abnormal state is that the working current is not zero.
Optionally, the domain controller includes a communication board and a driving board, where the central computing unit, the communication board, the driving board, and the load are sequentially connected in communication;
the acquisition module is further configured to acquire a first information amount of the power-on and power-off instruction sent by the communication board and a second information amount of the power-on and power-off instruction received by the driving board if it is determined that the domain controller is abnormal;
the judging module is further configured to judge that communication between the communication board and the driving board is abnormal if the first information amount is different from the second information amount.
Optionally, the domain controller includes a communication board and a driving board, the driving board includes a processor and a driving chip, and the central computing unit, the communication board, the processor, the driving chip and the load are sequentially connected in a communication manner;
the acquisition module is further configured to acquire a third information amount of the power-on and power-off instruction sent by the processor and a fourth information amount of the power-on and power-off instruction received by the driving chip if it is determined that the domain controller is abnormal;
and the judging module is further used for judging that the communication between the processor and the driving chip is abnormal if the third information quantity is different from the fourth information quantity.
On the other hand, the invention also provides the following technical scheme:
an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing any of the vehicle central computing architecture fault diagnosis methods described above when executing the computer program.
On the other hand, the invention also provides the following technical scheme:
a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements any of the vehicle central computing architecture fault diagnosis methods described above.
The one or more technical schemes provided by the invention have at least the following technical effects or advantages:
the invention can judge the fault reason according to the issuing state and receiving state of the power-on and power-off instructions of the load and the working current state of the load after the power-on and power-off faults of the load occur, and realize the fault diagnosis of the central computing architecture.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a method for diagnosing faults of a vehicle central computing architecture in an embodiment of the present invention;
FIG. 2 is a diagram of a central computing architecture according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a fault diagnosis device for a central computing architecture of a vehicle according to an embodiment of the invention.
Detailed Description
The embodiment of the invention solves the technical problem of how to carry out fault diagnosis on the vehicle central computing architecture by providing the vehicle central computing architecture fault diagnosis method and device.
In order to better understand the technical scheme of the present invention, the following detailed description will refer to the accompanying drawings and specific embodiments.
The central computing architecture in the embodiment of the invention comprises a central computing unit, a domain controller and a load, wherein the central computing unit issues instructions to control the domain controller to drive the load. The power supply flow of the load is as follows: the central computing unit issues a power-on instruction to the domain controller, the domain controller receives the power-on instruction, and the domain controller drives the load according to the power-on instruction. The power-down flow of the load is as follows: the central computing unit issues a power-down instruction to the domain controller, the domain controller receives the power-down instruction, and the domain controller turns off the drive according to the power-down instruction. When the central computing architecture is normal, the working current of the load after the load is electrified should be greater than zero; the operating current of the load should be zero after the load is powered down. The central computing architecture may be abnormal when the load is powered up and down, which may be the central computing unit, domain controller, or the connection harness of the load or load drive loop. Based on the above description, the vehicle central computing architecture fault diagnosis method of the embodiment of the invention includes:
step S1, judging whether a central computing unit issues a power-on and power-off instruction corresponding to a load when a vehicle is powered on and powered off;
step S2, if the central computing unit does not issue a power-on and power-off instruction, judging that the central computing unit is abnormal;
step S3, if the central computing unit issues a power-on and power-off instruction, judging whether the domain controller receives the power-on and power-off instruction or not;
step S4, if the domain controller receives the power-on and power-off instruction, the working current of the load is obtained; step S5, judging that at least one of the domain controller, the load and the driving loop wire harness of the load is abnormal if the working current is in a current abnormal state corresponding to the power-on and power-off instruction;
and S6, judging that the domain controller is abnormal if the domain controller does not receive the power-on and power-off instruction.
And when the vehicle is powered up and down, an up-down command of the related load is issued. If a load power-on fault occurs, the steps S1 to S6 are as follows: judging whether the central computing unit issues a power-on instruction corresponding to a load when the vehicle is powered on; if the central computing unit does not issue a power-on instruction, judging that the central computing unit is abnormal; if the central computing unit issues a power-on instruction, judging whether the domain controller receives the power-on instruction or not; if the domain controller receives a power-on instruction, the working current of the load is obtained; if the working current of the load is zero, judging that at least one of the domain controller, the load and a driving loop wire harness of the load is abnormal; if the domain controller does not receive the power-on instruction, the domain controller is judged to be abnormal.
If an electrical fault occurs under the load, the steps S1 to S6 are: judging whether the central computing unit issues a power-down instruction corresponding to a load when the vehicle is powered down; if the central computing unit does not issue a power-down instruction, judging that the central computing unit is abnormal; if the central computing unit issues a power-down instruction, judging whether the domain controller receives the power-down instruction or not; if the domain controller receives a power-down instruction, the domain controller acquires the working current of the load; if the working current of the load is not zero, judging that the domain controller is abnormal; if the domain controller does not receive the power-down instruction, the domain controller is judged to be abnormal.
Therefore, if the power-on/off command is a power-on command, the abnormal current state in step S5 is zero; if the power-up and power-down command is the power-down command, the abnormal current state in step S5 is that the working current is not zero.
In step S1, it may be determined whether the central computing unit issues a power-on/power-off instruction corresponding to the load by checking an original instruction issued by the central computing unit. Of course, after step S1, if it is determined that the central computing unit issues the power-on/power-off command, it represents that the central computing unit is normal. In step S5, the working current of the load is in a current abnormal state corresponding to the power-on and power-off command, and the abnormal cause may include abnormal driving function of the domain controller, that is, abnormal driving function of the domain controller, and may also include abnormal load and abnormal connection of the driving circuit harness of the load.
As can be seen from the above, the fault diagnosis method for the vehicle central computing architecture according to the embodiment of the invention can judge the fault cause according to the sending state, the receiving state and the working current state of the power-on and power-off instructions of the load after the power-on and power-off faults of the load occur, thereby realizing the fault diagnosis of the central computing architecture.
As shown in fig. 2, the domain controller in the embodiment of the present invention may further include a communication board and a driving board, where the central computing unit, the communication board, the driving board, and the load are sequentially connected in communication. The driving board comprises a processor and a driving chip, the communication board can be connected with the processor of the driving board through a UART, the processor and the driving chip can directly carry out SPI communication, namely, the central computing unit, the communication board, the processor, the driving chip and the load are sequentially in communication connection, the communication board is used for receiving and processing power-on and power-off instructions, and the driving chip and the peripheral circuit are used for driving the load and current detection. After step S5, it may be further determined whether the domain controller is abnormal and whether the load is abnormal, if the domain controller is abnormal, because the domain controller has received the power-on and power-off command, the communication between the communication board and the central computing unit representing the domain controller is normal, and the reasons for the load working current in the current abnormal state may only include the communication abnormality between the communication board and the driving board, and the communication abnormality between the driving board processor and the driving chip.
After step S5, the vehicle central computing architecture fault diagnosis method may further include:
if the domain controller is judged to be abnormal, acquiring the first information quantity of the power-on and power-off instructions sent by the communication board and the second information quantity of the power-on and power-off instructions received by the driving board; if the first information quantity is different from the second information quantity, judging that the communication between the communication board and the driving board is abnormal;
if the domain controller is judged to be abnormal, acquiring the third information quantity of the power-on and power-off instructions sent by the processor and the fourth information quantity of the power-on and power-off instructions received by the driving chip; if the third information amount is different from the fourth information amount, the communication between the processor and the driving chip is judged to be abnormal.
It can be understood that if the communication between the communication board and the driving board is normal, the number of the information of the power-on/power-off command sent by the UART of the communication board should be consistent with the number of the information of the power-on/power-off command received by the UART of the driving board processor, that is, the first information number is the same as the second information number; on the contrary, if the first information quantity is different from the second information quantity, which means that the communication board does not completely transmit the power-on and power-off instruction information to the driving board, it can be determined that the reason for causing the load working current to be in the current abnormal state includes abnormal communication between the communication board and the driving board. If the communication between the driving board processor and the driving chip is normal, the information quantity of the power-on and power-off instructions sent by the processor SPI should be consistent with the information quantity of the power-on and power-off instructions received by the driving chip SPI, namely the third information quantity is the same as the fourth information quantity; on the contrary, if the third information amount is different from the fourth information amount, which represents that the processor does not completely transmit the power-on/power-off instruction information to the driving chip, the reason for causing the load working current to be in the current abnormal state can be determined, including abnormal communication between the processor and the driving chip. It should be noted that, the reason why the load operation current is in the current abnormal state may include only communication abnormality between the communication board and the driving board, may include only communication abnormality between the processor and the driving chip, and may include both communication abnormality between the communication board and the driving board and communication abnormality between the processor and the driving chip.
As shown in fig. 3, an embodiment of the present invention further provides a failure diagnosis device for a vehicle central computing architecture, where the central computing architecture includes a central computing unit, a domain controller, and a load, and the central computing unit issues a command to control the domain controller to drive the load, and the failure diagnosis device for the vehicle central computing architecture includes:
the judging module is used for judging whether the central computing unit issues a power-on and power-off instruction corresponding to the load when the vehicle is powered on and powered off; if the central computing unit does not issue the power-on and power-off instruction, judging that the central computing unit is abnormal; if the central computing unit issues a power-on and power-off instruction, judging whether the domain controller receives the power-on and power-off instruction or not;
the acquisition module is used for acquiring the working current of the load if the domain controller receives the power-on and power-off instruction;
the judging module is also used for judging that at least one of the domain controller, the load and the driving loop wire harness of the load is abnormal if the working current is in a current abnormal state corresponding to the power-on and power-off instruction; if the domain controller does not receive the power-on and power-off instruction, the domain controller is judged to be abnormal.
And when the vehicle is powered up and down, an up-down command of the related load is issued. If a load power-on fault occurs, the vehicle central computing architecture fault diagnosis device comprises: the judging module is used for judging whether the central computing unit issues a power-on instruction corresponding to the load when the vehicle is powered on; if the central computing unit does not issue a power-on instruction, judging that the central computing unit is abnormal; if the central computing unit issues a power-on instruction, judging whether the domain controller receives the power-on instruction or not; the acquisition module is used for acquiring the working current of the load if the domain controller receives the power-on instruction; the judging module is also used for judging that at least one of the domain controller, the load and a driving loop wire harness of the load is abnormal if the working current of the load is zero; if the domain controller does not receive the power-on instruction, the domain controller is judged to be abnormal.
If an electrical fault occurs under load, the vehicle central computing architecture fault diagnosis device comprises: the judging module is used for judging whether the central computing unit issues a power-down instruction corresponding to the load when the vehicle is powered down; if the central computing unit does not issue a power-down instruction, judging that the central computing unit is abnormal; if the central computing unit issues a power-down instruction, judging whether the domain controller receives the power-down instruction or not; the acquisition module is used for acquiring the working current of the load if the domain controller receives the power-down instruction; the judging module is also used for judging that the domain controller is abnormal if the working current of the load is not zero; if the domain controller does not receive the power-down instruction, the domain controller is judged to be abnormal.
Therefore, if the power-on and power-off instruction is a power-on instruction, the current abnormal state is that the working current is zero; if the power-on and power-off instruction is the power-off instruction, the current abnormal state is that the working current is not zero.
The judging module can judge whether the central computing unit issues the power-on and power-off instruction corresponding to the load or not by checking the original instruction issued by the central computing unit. Of course, if the judging module judges that the central computing unit issues the power-on and power-off instruction, the judging module represents that the central computing unit is normal. The working current of the load is in a current abnormal state corresponding to the power-on and power-off instruction, and the abnormal reasons may include abnormal driving functions of the domain controller, namely abnormal driving functions of the domain controller, and also abnormal load and abnormal connection of a driving loop harness of the load.
As can be seen from the above, the fault diagnosis device for the vehicle central computing architecture according to the embodiment of the invention can judge the fault cause according to the sending state, the receiving state and the working current state of the power-on and power-off instructions of the load after the power-on and power-off faults of the load occur, so as to realize the fault diagnosis of the central computing architecture.
Further, the domain controller may include a communication board and a driving board, where the central computing unit, the communication board, the driving board, and the load are sequentially connected in communication;
the acquisition module is further used for acquiring the first information quantity of the power-on and power-off instructions sent by the communication board and the second information quantity of the power-on and power-off instructions received by the driving board if the domain controller is judged to be abnormal;
the judging module is further configured to judge that the communication between the communication board and the driving board is abnormal if the first information amount is different from the second information amount.
It can be understood that if the communication between the communication board and the driving board is normal, the number of the information of the power-on/power-off command sent by the UART of the communication board should be consistent with the number of the information of the power-on/power-off command received by the UART of the driving board processor, that is, the first information number is the same as the second information number; on the contrary, if the first information quantity is different from the second information quantity, which means that the communication board does not completely transmit the power-on and power-off instruction information to the driving board, it can be determined that the reason for causing the load working current to be in the current abnormal state includes abnormal communication between the communication board and the driving board.
Further, the driving board can comprise a processor and a driving chip, and the central computing unit, the communication board, the processor, the driving chip and the load are sequentially in communication connection;
the acquisition module is further used for acquiring the third information quantity of the power-on and power-off instructions sent by the processor and the fourth information quantity of the power-on and power-off instructions received by the driving chip if the domain controller is judged to be abnormal;
the judging module may be further configured to judge that the communication between the processor and the driving chip is abnormal if the third information amount is different from the fourth information amount.
It can be understood that if the communication between the driving board processor and the driving chip is normal, the information quantity of the power-on and power-off command sent by the processor SPI should be consistent with the information quantity of the power-on and power-off command received by the driving chip SPI, that is, the third information quantity is the same as the fourth information quantity; on the contrary, if the third information amount is different from the fourth information amount, which represents that the processor does not completely transmit the power-on/power-off instruction information to the driving chip, the reason for causing the load working current to be in the current abnormal state can be determined, including abnormal communication between the processor and the driving chip. It should be noted that, the reason why the load operation current is in the current abnormal state may include only communication abnormality between the communication board and the driving board, may include only communication abnormality between the processor and the driving chip, and may include both communication abnormality between the communication board and the driving board and communication abnormality between the processor and the driving chip.
Based on the same inventive concept as the vehicle central computing architecture fault diagnosis method, the embodiment of the invention further provides an electronic device, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor executes the computer program to realize the steps of any one of the vehicle central computing architecture fault diagnosis methods.
Where a bus architecture (represented by a bus), a bus may comprise any number of interconnected buses and bridges, linking together various circuits, including one or more processors, as represented by a processor, and a memory, as represented by a memory. The bus may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., as are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface between the bus and the receiver and transmitter. The receiver and the transmitter may be the same element, i.e. a transceiver, providing a unit for communicating with various other apparatus over a transmission medium. The processor is responsible for managing the bus and general processing, while the memory may be used to store data used by the processor in performing operations.
Since the electronic device described in the embodiment of the present invention is an electronic device used for implementing the failure diagnosis method of the vehicle central computing architecture in the embodiment of the present invention, based on the failure diagnosis method of the vehicle central computing architecture described in the embodiment of the present invention, those skilled in the art can understand the specific implementation of the electronic device and various modifications thereof, so how the electronic device implements the method in the embodiment of the present invention will not be described in detail herein. Any electronic device adopted by those skilled in the art to implement the fault diagnosis method for the vehicle central computing architecture in the embodiment of the present invention falls within the scope of protection intended by the present invention.
Based on the same inventive concept as the above-described vehicle central computing architecture fault diagnosis method, the present invention also provides a computer-readable storage medium having stored thereon a computer program that, when executed by a processor, implements any of the above-described vehicle central computing architecture fault diagnosis methods.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (10)
1. A vehicle central computing architecture fault diagnosis method, the central computing architecture including a central computing unit, a domain controller, and a load, the central computing unit issuing instructions to control the domain controller to drive the load, the method comprising:
judging whether the central computing unit issues a power-on and power-off instruction corresponding to the load when the vehicle is powered on and powered off;
if the central computing unit does not issue the power-on and power-off instruction, judging that the central computing unit is abnormal;
if the central computing unit issues the power-on and power-off instruction, judging whether the domain controller receives the power-on and power-off instruction or not;
if the domain controller receives the power-on and power-off instruction, the working current of the load is obtained; if the working current is in a current abnormal state corresponding to the power-on and power-off instruction, judging that at least one of the domain controller, the load and a driving loop wire harness of the load is abnormal;
and if the domain controller does not receive the power-on and power-off instruction, judging that the domain controller is abnormal.
2. The vehicle central computing architecture fault diagnosis method according to claim 1, wherein if the power-on and power-off command is a power-on command, the current abnormal state is that the operating current is zero; and if the power-on and power-off instruction is a power-off instruction, the current abnormal state is that the working current is not zero.
3. The vehicle central computing architecture fault diagnosis method of claim 1, wherein the domain controller comprises a communication board and a drive board, the central computing unit, the communication board, the drive board, and the load being in communication connection in sequence;
and if the working current is in the current abnormal state corresponding to the power-on and power-off instruction, judging that at least one of the domain controller and the load is abnormal, and further comprising:
if the domain controller is judged to be abnormal, acquiring the first information quantity of the power-on and power-off instructions sent by the communication board and the second information quantity of the power-on and power-off instructions received by the driving board;
and if the first information quantity is different from the second information quantity, judging that the communication between the communication board and the driving board is abnormal.
4. The vehicle central computing architecture fault diagnosis method of claim 1, wherein the domain controller comprises a communication board and a drive board, the drive board comprises a processor and a drive chip, and the central computing unit, the communication board, the processor, the drive chip and the load are sequentially in communication connection;
and if the working current is in the current abnormal state corresponding to the power-on and power-off instruction, judging that at least one of the domain controller and the load is abnormal, and further comprising:
if the domain controller is judged to be abnormal, acquiring the third information quantity of the power-on and power-off instructions sent by the processor and the fourth information quantity of the power-on and power-off instructions received by the driving chip;
and if the third information quantity is different from the fourth information quantity, judging that the communication between the processor and the driving chip is abnormal.
5. A vehicle central computing architecture fault diagnosis apparatus, the central computing architecture including a central computing unit, a domain controller, and a load, the central computing unit issuing instructions to control the domain controller to drive the load, the apparatus comprising:
the judging module is used for judging whether the central computing unit issues a power-on and power-off instruction corresponding to the load when the vehicle is powered on and powered off; if the central computing unit does not issue the power-on and power-off instruction, judging that the central computing unit is abnormal; if the central computing unit issues the power-on and power-off instruction, judging whether the domain controller receives the power-on and power-off instruction or not;
the acquisition module is used for acquiring the working current of the load if the domain controller receives the power-on and power-off instruction;
the judging module is further configured to judge that at least one of the domain controller, the load, and a driving circuit harness of the load is abnormal if the working current is in a current abnormal state corresponding to the power-on and power-off command; and if the domain controller does not receive the power-on and power-off instruction, judging that the domain controller is abnormal.
6. The vehicle central computing architecture fault diagnosis device according to claim 5, wherein if the power-on/off command is a power-on command, the current abnormal state is the operating current is zero; and if the power-on and power-off instruction is a power-off instruction, the current abnormal state is that the working current is not zero.
7. The vehicle central computing architecture fault diagnosis device of claim 5, wherein the domain controller comprises a communication board and a drive board, the central computing unit, the communication board, the drive board, and the load being in communication connection in sequence;
the acquisition module is further configured to acquire a first information amount of the power-on and power-off instruction sent by the communication board and a second information amount of the power-on and power-off instruction received by the driving board if it is determined that the domain controller is abnormal;
the judging module is further configured to judge that communication between the communication board and the driving board is abnormal if the first information amount is different from the second information amount.
8. The vehicle central computing architecture fault diagnosis device of claim 5, wherein the domain controller comprises a communication board and a drive board, the drive board comprising a processor and a drive chip, the central computing unit, the communication board, the processor, the drive chip, and the load being in communication connection in sequence;
the acquisition module is further configured to acquire a third information amount of the power-on and power-off instruction sent by the processor and a fourth information amount of the power-on and power-off instruction received by the driving chip if it is determined that the domain controller is abnormal;
and the judging module is further used for judging that the communication between the processor and the driving chip is abnormal if the third information quantity is different from the fourth information quantity.
9. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing the vehicle central computing architecture fault diagnosis method of any one of claims 1-4 when the computer program is executed.
10. A computer readable storage medium, characterized in that it has stored thereon a computer program which, when executed by a processor, implements the vehicle central computing architecture fault diagnosis method of any of claims 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311338217.9A CN117519065A (en) | 2023-10-17 | 2023-10-17 | Vehicle central computing architecture fault diagnosis method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311338217.9A CN117519065A (en) | 2023-10-17 | 2023-10-17 | Vehicle central computing architecture fault diagnosis method and device |
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| CN117519065A true CN117519065A (en) | 2024-02-06 |
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| CN202311338217.9A Pending CN117519065A (en) | 2023-10-17 | 2023-10-17 | Vehicle central computing architecture fault diagnosis method and device |
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