WO2023109889A1

WO2023109889A1 - Engine ecu flashing method and device, and engine ecu flashing diagnosis method and device

Info

Publication number: WO2023109889A1
Application number: PCT/CN2022/139204
Authority: WO
Inventors: 王怀宽; 齐向超; 钟永超; 李博
Original assignee: 潍柴动力股份有限公司; 潍坊潍柴动力科技有限责任公司
Priority date: 2021-12-15
Filing date: 2022-12-15
Publication date: 2023-06-22
Also published as: CN114397869A

Abstract

An engine ECU flashing method and device, and an engine ECU flashing diagnosis method and device. The engine ECU flashing method is applied to the ECU flashing device, and comprises: receiving an ECU flashing request instruction (S101); pre-forming a temporary flashing record according to the ECU flashing request instruction, and storing the temporary flashing record (S102); executing ECU flashing according to the temporary flashing record (S103); and after the ECU flashing is completed, automatically recording and forming a first ECU flashing record, and externally sending the first ECU flashing record (S104). The engine ECU flashing diagnosis method is applied to the flashing diagnosis device, and comprises: receiving a flashing diagnosis request instruction (S201); obtaining, according to the flashing diagnosis request instruction, the first ECU flashing record obtained by means of the engine ECU flashing method (S202); when a corresponding second ECU flashing record in the flashing diagnosis device lacks a data record number and/or record issuing time of the first ECU flashing record, determining that the ECU flashing record is an illegal flashing record (S203).

Description

Engine ECU flashing method, flashing diagnosis method and equipment

This application claims the priority of the Chinese patent application submitted to the State Intellectual Property Office of China on December 15, 2021, with the application number 202111537420.X, and the title of the invention is "Engine ECU flashing method, flashing diagnosis method and equipment", which The entire contents are incorporated by reference in this application.

technical field

The present application relates to the technical field of vehicle engines, for example, to an engine ECU flashing method, flashing diagnosis method and equipment.

Background technique

With the continuous development of vehicle electronic technology, electronic control unit ECU has been widely used in modern vehicles. With the continuous improvement of vehicle requirements, electronic and electronic control systems including ECU are becoming more and more complex. Therefore, vehicle-related diagnostics The technical requirements for testing have also increased accordingly.

After the vehicle enters the market, it generally does not modify the ECU data, but in fact, it is very common for the market to steal the ECU of the vehicle, which may shorten the life of the engine itself and increase the failure rate. Therefore, it is necessary to determine whether the ECU of the vehicle has been illegally stolen during vehicle maintenance, and then provide a basis for maintenance ideas and responsibility identification.

Contents of the invention

The present application provides an engine ECU flashing method, flashing diagnosis method and equipment, which can deal with the situation in the related art that it is impossible to determine whether the vehicle ECU has been stolen.

In the first aspect, the embodiment of the present application provides a method for flashing an engine ECU, which is applied to an ECU flashing device, and includes the following steps:

Receive ECU flash request command;

According to the ECU flashing request instruction, a flashing temporary record is pre-formed and stored;

Execute ECU flashing according to the flashing temporary record;

When the ECU flashing is completed, it will automatically record and form the first ECU flashing record, and send the first ECU flashing record externally.

In some embodiments of the present application, the information category of the first ECU flashing record includes ECU serial number, data record number, issued record time, flashing completion time, flashing times, project number, version number and/or ECU running time.

In some embodiments of the present application, the information category of the first ECU flashing record is increased or decreased by user definition.

In a second aspect, the embodiment of the present application provides a method for diagnosing engine ECU flashing, which is applied to diagnosing equipment for flashing, including the following steps:

Receive a flash diagnostic request command;

According to the flashing diagnosis request command, obtain the first ECU flashing record obtained by the engine ECU flashing method;

When the corresponding second ECU flashing record in the flashing diagnosis device lacks the data record number and/or issued record time of the first ECU flashing record, it is determined that the first ECU flashing record is an illegal flashing record.

In some embodiments of the present application, after obtaining the ECU flash record according to the flash diagnostic request instruction, it also includes:

When the data record number and/or issued record time in the corresponding second ECU flashing record in the flashing diagnostic device is inconsistent with the data in the first ECU flashing record, it is determined that the ECU flashing record is an illegal flashing record.

In some embodiments of the present application, after judging that the ECU flashing record is an illegal flashing record, it also includes:

Issue an illegal flash warning and restore the normal data of the ECU.

In some embodiments of the present application, the information category of the second ECU flashing record includes ECU serial number, data record number, issued record time, flashing completion time, flashing times, project number, version number and/or ECU running time.

In some embodiments of the present application, the information category of the second ECU flashing record is increased or decreased by user definition.

In the third aspect, the embodiment of the present application also provides a flashing diagnostic device, including:

memory for storing computer programs;

The processor is configured to implement the engine ECU flashing diagnosis method as described above when executing the computer program.

In the fourth aspect, the embodiment of the present application also provides an engine ECU flashing device, including:

memory for storing computer programs;

The processor is configured to implement the method for flashing the engine ECU as described above when executing the computer program.

Using the engine ECU flashing method, flashing diagnosis method and equipment of the present application, the engine ECU flashing method is applied to the ECU flashing device, comprising the following steps: receiving the ECU flashing request instruction; according to the ECU flashing request instruction in advance Forming and storing a temporary record for flashing; executing ECU flashing according to the temporary record for flashing; when the ECU flashing is completed, automatically record and form a first ECU flashing record, and send the first ECU flashing record externally. The engine ECU flashing diagnosis method is applied to flashing diagnostic equipment, comprising the following steps: receiving a flashing diagnosis request instruction; obtaining the first ECU flashing record obtained by the engine ECU flashing method according to the flashing diagnostic request instruction; When the corresponding second ECU flash record in the device lacks the data record number and/or issued record time of the first ECU flash record, it is determined that the ECU flash record is an illegal flash record. The present application can deal with the situation in the related art that it is impossible to determine whether the ECU of the vehicle has been stolen.

Description of drawings

Fig. 1 shows a flow chart of the steps of a method for flashing an engine ECU according to an embodiment of the present application;

Fig. 2 shows a flow chart of the steps of a method for flashing and diagnosing an engine ECU according to an embodiment of the present application;

Fig. 3 shows a schematic flow chart of an engine ECU flashing and flashing diagnosis method according to an embodiment of the present application;

Fig. 4 shows a schematic structural diagram of an engine ECU flashing diagnostic device according to an embodiment of the present application;

Fig. 5 shows a schematic structural diagram of an engine ECU flashing device according to an embodiment of the present application.

Detailed ways

As described in the background technology, it is very common for the market to steal the ECU of the vehicle, which may shorten the life of the engine itself and increase the failure rate. Therefore, it is necessary to determine whether the ECU of the vehicle has been illegally stolen during vehicle maintenance, and then provide a basis for maintenance ideas and responsibility identification.

In order to solve the above technical problems, the embodiment of the present application provides an engine ECU flashing, flashing diagnosis method and equipment, the engine ECU flashing method, applied to the ECU flashing device, including the following steps: receiving the ECU flashing request command; According to the ECU flash write request instruction, pre-form the flash write temporary record and store it; execute the ECU flash write according to the flash write temporary record; when the ECU flash write is completed, the first ECU flash write record is automatically recorded and sent externally Describe the first ECU flash record. And a method for diagnosing engine ECU flashing, which is applied to diagnosing equipment for flashing, comprising the following steps: receiving a flashing diagnosis request instruction; obtaining the first ECU flashing record obtained by the engine ECU flashing method according to the flashing diagnostic request instruction; When the corresponding second ECU flashing record in the flashing diagnosis device lacks the data record number and/or issued record time of the first ECU flashing record, it is determined that the ECU flashing record is an illegal flashing record. The application solves the problem in the prior art that it is impossible to determine whether the ECU of the vehicle is stolen.

exemplary method

Referring to Figure 1, this figure is a flow chart of the steps of a method for flashing an engine ECU provided in an embodiment of the present application, which is applied to an ECU flashing device, including:

S101: Receive an ECU flashing request instruction.

S102: Pre-form a flashing temporary record according to the ECU flashing request instruction, and store it.

In the embodiment of the present application, temporary records are pre-formed to prevent failure of flashing and failure to form records again.

S103: Perform ECU flashing according to the flashing temporary record.

S104: After the ECU flashing is completed, automatically record and form the first ECU flashing record, and send the first ECU flashing record externally.

In the embodiment of the present application, after the flashing is completed, the J1939 message broadcast method can be used to send it to the outside, including sending to the flashing diagnostic device.

In a possible implementation, the information category of the first ECU flashing record includes ECU serial number, data record number, issued record time, flashing completion time, flashing times, project number, version number and/or ECU operation hours.

In a possible implementation manner, the information category of the first ECU flashing record is increased or decreased by user definition.

Referring to Figure 2, this figure is a flow chart of the steps of an engine ECU flashing diagnosis method provided in the embodiment of the present application, which is applied to flashing diagnostic equipment, including:

S201: Receive a flashing diagnosis request instruction.

S202: Obtain the first ECU flashing record obtained by the engine ECU flashing method according to the flashing diagnosis request instruction.

S203: When the corresponding second ECU flash record in the flash diagnostic device lacks the data record number and/or issued record time of the first ECU flash record, determine that the first ECU flash record is an illegal flash record.

In a possible implementation, it also includes: when the data record number and/or issued record time in the corresponding second ECU flashing record in the flashing diagnostic device is inconsistent with the data in the ECU flashing record, judging The ECU flash record is an illegal flash record.

Specifically, after determining that the ECU flashing record is an illegal flashing record, it further includes: estimating the data record number and/or sending record time of the ECU flashing record. You can roughly estimate the flashing time based on the current ECU running time, the previous ECU running time, and the previous flashing completion time.

In a possible implementation manner, after it is determined that the ECU flashing record is an illegal flashing record, an illegal flashing warning will be issued and the normal data of the ECU will be restored.

In a possible implementation, the information category of the second ECU flashing record includes ECU serial number, data record number, issued record time, flashing completion time, flashing times, project number, version number and/or ECU operation hours.

In a possible implementation manner, the information category of the second ECU flashing record is increased or decreased by user definition.

Refer to FIG. 3 , which is a schematic flow chart of an engine ECU flashing and flashing diagnosis method provided by an embodiment of the present application.

In order to better illustrate the engine ECU flashing and flashing diagnostic method of the present application, as shown in Figure 3, during specific implementation, the flashing diagnostic equipment includes a service, a TBOX remote terminal, and a diagnostic instrument. ECU flashing equipment includes two parts: BT and ASW.

First, when the ECU is flashed, the diagnostic instrument can obtain the flashing data from the server, execute the flashing process, and instill the data in the server into the ECU. The diagnostic instrument proposed here is an authorized diagnostic instrument, which can be connected to the enterprise server, while other hacking tools cannot be connected to the enterprise server.

Next, BT is responsible for ECU flashing, and ASW is responsible for ECU control.

ASW is responsible for storing flashing times, item number, version number, and ECU running time into memory EE as a temporary record. BT executes the flashing process, and when it starts to erase the corresponding area, it sets the temporary record as the official record.

After the flashing is completed, the flashing record will be stored; the flashing record function in the ECU can record the latest three flashing information, including the number of flashing times, project number, version number, and ECU running time.

And after the ECU is restarted, it will use the J1939 message broadcast method to actively notify TBOX, and store the flashing record to the server. The server records the flashing completion time, flashing times, project number, version number, and ECU running time.

Then, during ECU flashing diagnosis, the server is responsible for ECU data management and can provide ECU flashing record information, including ECU serial number, data record number, sending record time, flashing completion time, flashing times, project number, Version number and ECU runtime, etc. The flash record information can be customized.

When the vehicle needs to be repaired, it will be connected to the diagnostic instrument for fault reading and troubleshooting. At this time, the diagnostic instrument will read the flash record in the ECU through the 0x22 service and send this information to the server. If the server has included the latest If the record is flushed, the information is discarded, otherwise it is recorded.

When the flashing record in the server does not include the data record number and the sending record time, it is judged as illegal flashing information, and the current ECU running time, the previous ECU running time, and the previous flashing completion time can be roughly Estimated time to be flashed.

When the ECU is determined to be illegally flashed, the server will give an early warning to help service personnel restore normal data to protect the vehicle.

Therefore, the ECU of this application can actively record the flashing information, and all flashing can be captured; the information validity record is performed from the execution of the flashing process to the erasure, which is more accurate for the flashing record; temporary records can be formed in advance to avoid flashing If the failure fails, the record cannot be formed again; after the flashing is completed, a message is sent out to facilitate the TBOX to notify the server in time; the relevant information of the ECU flashing record can be read in BT and ASW.

The embodiment of the present application provides a method for flashing an engine ECU, which is applied to an ECU flashing device, comprising the following steps: receiving an ECU flashing request instruction; pre-forming a flashing temporary record according to the ECU flashing request instruction, and storing it; Execute ECU flashing according to the flashing temporary record; when the ECU flashing is completed, automatically record to form a first ECU flashing record, and send the first ECU flashing record externally. This application can actively record flashing information; flashing record information can be customized to meet different needs; pre-form temporary records to avoid flashing failures and cannot form records again; send J1939 messages after flashing is completed to avoid flashing failures cannot be recorded. It can meet the needs of different customers, avoid the failure of flashing to form records again, and make the flashing records more accurate.

The embodiment of the present application provides a method for diagnosing engine ECU flashing, which is applied to a diagnosing device for flashing, comprising the following steps: receiving a flashing diagnosis request instruction; obtaining the first ECU obtained by the engine ECU flashing method according to the flashing diagnosis request instruction Flash record; when the corresponding second ECU flash record in the flash diagnostic device lacks the data record number and/or issued record time of the first ECU flash record, it is determined that the ECU flash record is an illegal flash record. The application solves the problem in the prior art that it is impossible to determine whether the ECU of the vehicle is stolen.

Exemplary device

Referring to FIG. 4 , it is a schematic structural diagram of an engine ECU flashing diagnostic device provided in an embodiment of the present application. The engine ECU flashing diagnostic device 400 includes:

Memory 402: for storing computer programs; and

Processor 401: used to implement the above-mentioned engine ECU flashing diagnosis method when executing the computer program.

Those skilled in the art can understand that the schematic diagram 4 is only an example of the engine ECU flashing diagnostic device 400, and does not constitute a limitation to the engine ECU flashing diagnostic device 400, and may include more or less components than those shown in the figure, or a combination Certain components, or different components, such as the engine ECU flashing diagnostic device 400 may also include input and output devices, network access devices, buses and so on.

The so-called processor 401 (Central Processing Unit, CPU) can also be other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), field programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. General-purpose processor can be microprocessor or this processor 401 also can be any conventional processor etc., and processor 401 is the control center of engine ECU writing diagnosis equipment 400, utilizes various interfaces and lines to connect whole engine ECU writing Various parts of the diagnostic device 400 .

The memory 402 can be used to store computer-readable instructions, and the processor 401 implements the engine ECU flashing each function of the diagnostic device 400 by running or executing the computer-readable instructions or modules stored in the memory 402 and calling the data stored in the memory 402. function. The memory 402 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, at least one application program required by a function (such as a sound playback function, an image playback function, etc.); The engine ECU flash diagnostic device 400 uses the created data and the like. In addition, the memory 402 can include a hard disk, a memory, a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash memory card (Flash Card), at least one magnetic disk storage device, a flash memory device, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), or other non-volatile/volatile storage devices.

If the integrated modules of the engine ECU flashing diagnostic device 400 are realized in the form of software function modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the present invention realizes all or part of the processes in the methods of the above-mentioned embodiments, and can also use computer-readable instructions to instruct related hardware to complete. The computer-readable instructions can be stored in a computer-readable storage medium. When the computer readable instructions are executed by the processor, the steps in the above-mentioned various method embodiments can be realized.

Referring to FIG. 5 , it is a schematic structural diagram of an engine ECU flashing device provided in an embodiment of the present application, and an engine ECU flashing device 500 includes:

Memory 502: for storing computer programs; and

Processor 501: used to implement the above-mentioned engine ECU flashing method when executing the computer program.

Those skilled in the art can understand that the schematic diagram 5 is only an example of the engine ECU flashing device 500, and does not constitute a limitation to the engine ECU flashing device 500, and may include more or less components than those shown in the figure, or combine some Components, or different components, for example, the engine ECU flashing device 500 may also include input and output devices, network access devices, buses, and the like.

The so-called processor 501 (Central Processing Unit, CPU) can also be other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), field programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. General-purpose processor can be microprocessor or this processor 501 also can be any conventional processor etc., processor 501 is the control center of engine ECU flashing equipment 500, utilizes various interfaces and lines to connect whole engine ECU flashing equipment 500 in various parts.

The memory 502 can be used to store computer-readable instructions, and the processor 501 realizes various functions of the engine ECU flashing device 500 by running or executing the computer-readable instructions or modules stored in the memory 502, and calling the data stored in the memory 502. Function. The memory 502 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, at least one application program required by a function (such as a sound playback function, an image playback function, etc.); The engine ECU flashing device 500 uses the created data and the like. In addition, the memory 502 can include a hard disk, a memory, a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash memory card (Flash Card), at least one magnetic disk storage device, a flash memory device, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), or other non-volatile/volatile storage devices.

If the integrated modules of the engine ECU flashing device 500 are realized in the form of software function modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on such an understanding, the present invention realizes all or part of the processes in the methods of the above embodiments, and can also use computer-readable instructions to instruct related hardware to complete, and the computer-readable instructions can be stored in a computer-readable storage medium. When the computer-readable instructions are executed by the processor, the steps of the above-mentioned various method embodiments can be realized.

On the basis of the above-mentioned embodiments, the embodiment of the present application also provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is processed and executed, the above-mentioned engine ECU flashing Steps to write and flash diagnostic methods.

The engine ECU flashing equipment, flashing diagnostic equipment and computer storage medium in the embodiment of the present application can actively record the flashing information; the flashing record information can be customized to meet different needs; pre-form temporary records to avoid flashing failures Form a record again; send out the J1939 message after the flashing is completed to avoid failure to record when the flashing fails. Therefore, it has technical effects: meeting different customer needs, avoiding failure of flashing to form records again, and more accurate flashing records, etc.

The computer-readable storage medium may include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk, etc., which can store program codes. medium.

Claims

A method for flashing an engine ECU, applied to an ECU flashing device, comprising:

Receive ECU flash request command;

According to the ECU flashing request instruction, a flashing temporary record is pre-formed and stored;

Execute ECU flashing according to the flashing temporary record;

After the ECU flashing is completed, the first ECU flashing record is automatically recorded, and the first ECU flashing record is sent externally.
The method according to claim 1, wherein, the information categories of the first ECU flashing record include ECU serial number, data record number, sending record time, flashing completion time, flashing times, item number, version number and at least one parameter in the ECU runtime.
The method according to claim 1, wherein the information category of the first ECU flashing record is increased or decreased by user definition.
A method for diagnosing engine ECU flashing, applied to flashing diagnostic equipment, comprising:

Receive a flash diagnostic request command;

According to the flashing diagnosis request instruction, obtain the first ECU flashing record obtained by the engine ECU flashing method according to any one of claims 1-3;

When the corresponding second ECU flash record in the flash diagnostic device lacks the data record number and/or issued record time of the first ECU flash record, it is determined that the first ECU flash record is illegal flash Record.
The method according to claim 4, wherein, after obtaining the ECU flash record according to the flash diagnostic request instruction, further comprising:

When the data record number and/or issued record time in the corresponding second ECU flashing record in the flashing diagnosis device is inconsistent with the data in the first ECU flashing record, it is determined that the ECU flashing record is illegal Flush the record.
The method according to claim 4, wherein, after said judging that the ECU brushing record is an illegal brushing record, further comprising:

Issue an illegal flash warning and restore the normal data of the ECU.
The method according to claim 4, wherein, the information categories of the second ECU flashing record include ECU serial number, data record number, sending record time, flashing completion time, flashing times, project number, version number and at least one parameter in the ECU runtime.
The method according to claim 4, wherein the information category of the second ECU flashing record is increased or decreased by user definition.
An engine ECU flashing diagnostic device, comprising:

memory for storing computer programs;

The processor is configured to implement the engine ECU flashing diagnosis method according to any one of claims 4-8 when executing the computer program.
A device for flashing an engine ECU, comprising:

memory for storing computer programs;

The processor is configured to implement the engine ECU flashing method according to any one of claims 1-3 when executing the computer program.