KR101605639B1 - System and method for initializing of factory in engine controller - Google Patents

Abstract

The present invention relates to a method and a system for initializing an engine controller factory, which installs software to inspect functions in the random access memory (RAM) of a vehicle controller when inspecting functions and performance through a function inspector in a process of producing the vehicle controller and is able to perform a factory initialization by applying a function, which records a value in a specific address area of a master control unit (MCU) among various functions of the software for inspecting functions, to a flash memory deletion process (PFLASH erase sequence) and deleting the header field of an alternative boot mode (ABM) in the flash memory. The engine controller factory initialization system according to the present invention comprises: an engine controller which includes an RAM, a flash memory (PFlash), and a master control unit (MCU) capable of installing not only software but also a communication function; and a function inspector which performs the factory initialization of the engine controller by installing software for inspecting functions in the RAM area through communication with the engine controller and deleting the ABM header field in the flash memory through the software for inspecting functions.

Description

Technical Field [0001] The present invention relates to an engine controller factory initialization method and system,

The present invention relates to a method and system for initializing an engine controller factory. More particularly, the present invention relates to a method and system for initializing an engine controller in a random access memory (RAM) area of a vehicle controller Software is installed and the function of writing the value in the specific address area of the main control unit among the functions of the function checking software is applied to the PFLASH erase sequence in the flash memory To an initialization method and system for an initialization of an engine controller that allows a factory initialization to be performed by deleting a header area of an alternate boot mode.

In general, the vehicle controller is composed of a plurality of control units which are combined into a single control unit, and a more effective inspection apparatus is required for ensuring the quality and safety of the product as the product technology develops.

In the conventional inspection technique, a visual inspection or a manual inspection is performed by an operator in the process of assembling the overall parts of the vehicle controller, and furthermore, after the finished product is assembled, a quality inspection is performed by an operation inspection depending on whether it is operated or not.

However, in the case of the conventional quality inspection, there is a limit in the inspection operation itself by the operator, and it takes a long time in the inspection process, which causes a problem in that the productivity and price competitiveness of the product are greatly deteriorated.

In order to solve such a problem, the conventional technology uses a generic scan tool connected to an actual vehicle or a simulator to check the quality of parts including the vehicle controller by judging whether the service is operated or not.

However, since the conventional tester has a limited processing capacity due to a limited number of types of tests, it takes a lot of time in the inspection process, and due to a lack of a consistent inspection method, errors in self- There was a falling problem.

In addition, the conventional tester installed the function checking software in the random access memory area of the controller through CAN communication with the engine controller, and then performed the function check through various services provided by the function checking software .

Therefore, even though the software of the engine controller is installed in the random access memory area of the engine controller, and the housing of the engine controller is sealed and waterproofed after the function check is completed, software that can not be reprogrammed There is a problem that it is very cumbersome to perform the factory initialization. That is, in order to perform the factory initialization for the engine controller, there is a difficult problem that the housing of the engine controller must be physically opened again or a new engine controller must be manufactured.

Korean Registered Patent No. 1388412 (registered on Apr. 16, 2014)

In order to solve the above problems, an object of the present invention is to provide a system and method for installing functional inspection software in a random access memory (RAM) area of a vehicle controller when inspecting a function or performance through a functional tester in a process of producing a vehicle controller , A function of writing a value to a specific address area of a main control unit (MCU) among various functions of the function checking software is applied to a flash memory erase sequence (PFLASH erase sequence), and an alternate boot mode Mode of the initialization of the engine controller to delete the header area of the engine controller factory.

According to an aspect of the present invention, there is provided a computer program product including a random access memory (RAM), a flash memory (PFlash), and a main control unit An engine controller having an MCU; And installing the function checking software in the RAM area by communicating with the engine controller, deleting the ABM header field in the flash memory through the function checking software, and performing factory initialization of the engine controller Lt; RTI ID = 0.0 > controller < / RTI > factory initialization system.

In addition, the function checker applies a function of writing data to a specific address area of the main control unit (MCU) among various functions of the function checking software to a flash memory erase process (PFlash erase sequence) An Alternate Boot Mode header field in the flash memory is deleted.

In addition, the function tester installs function checking software in the RAM area or deletes an ABM header field in the flash memory through CAN (Controller Area Network) communication with the engine controller.

In addition, the function tester inspects the function of the engine controller using software for function checking installed in the RAM area through CAN (Controller Area Network) communication with the engine controller.

The ABM header field in the flash memory includes a user code start address 4 bytes, an ABM header ID 4 bytes, a memory range to be checked -Start Address 4 bytes, Address range for checking 4 bytes, Check Result for the Memory Range 4 bytes, Inverted Check Result for the Memory Range 4 bytes, 4 bytes for the ABM header check result, and 4 bytes for the ABM Header check result.

According to another aspect of the present invention, there is provided an engine controller factory initialization method including a RAM, a flash memory (PFlash), and a main control unit (MCU) Installing software for function checking on the computer; (b) executing the function checking software by the function checker; And (c) deleting the ABM header field in the flash memory through the function checking software by the function checking unit.

In the step (c), a function of writing data in a specific address area of the main control unit (MCU) among various functions of the function checking software is called a PFlash erase sequence The ABM header area in the flash memory is deleted.

In the step (a), software for function checking is installed in the RAM area through CAN (Controller Area Network) communication with the engine controller.

In the step (c), the ABM header area in the flash memory is deleted through CAN (Controller Area Network) communication with the engine controller.

In the step (b), the function of the engine controller is checked using software for function inspection installed in the RAM area through CAN (Controller Area Network) communication with the engine controller.

The ABM header area in the flash memory includes a user code start address 4 bytes, an ABM header ID 4 bytes, a memory range to be checked-start address, 4 bytes, address range for checking (Memory Area to be checked-Start Address) 4 bytes, Check Result for the Memory Range 4 bytes, Inverted Check Result for the Memory Range ) 4 bytes, 4 bytes of Check Result for ABM Header, and 4 bytes of Inverted Check Result for ABM Header.

According to the present invention, it is possible to easily perform the factory initialization for the engine controller of the vehicle, thereby reusing the engine controller.

In addition, there is no need to physically re-open the housing of the engine controller to perform factory initialization for the engine controller, and no new engine controller is required.

In addition, since the initialization of the engine controller is performed by using the communication, there is no need to use the dedicated equipment, and the cost for initializing the plant can be greatly reduced.

1 is a block diagram schematically showing an overall configuration of an engine controller factory initialization system according to an embodiment of the present invention.
FIG. 2 is a flowchart illustrating an engine controller factory initialization method according to an embodiment of the present invention. Referring to FIG.
3 is a diagram illustrating a structure of an ABM header area in a flash memory of an engine controller to which the present invention is applied.
4 is a diagram illustrating a data transmission format of a CAN communication used for communication between a functional tester and an engine controller according to an embodiment of the present invention.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that it is not intended to be limited to the particular embodiments of the invention but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an engine controller factory initialization method and system according to the present invention will be described in detail with reference to the accompanying drawings. In the following description with reference to the accompanying drawings, the same or corresponding components will be denoted by the same reference numerals, and redundant description thereof will be omitted.

1 is a block diagram schematically showing an overall configuration of an engine controller factory initialization system according to an embodiment of the present invention.

Referring to FIG. 1, an engine controller factory initialization system 100 according to an embodiment of the present invention includes a function tester 120 capable of communicating with an engine control unit 110.

Here, the engine controller 110 includes a RAM 112, a flash memory (PFlash) 114, and an MCU 116 that can install software in addition to a communication function.

The function checker 120 communicates with the engine controller 11 to install the function checking software in the RAM 112 area and delete the ABM header area in the flash memory 114 through the function checking software And performs factory reset of the engine controller.

At this time, the function checker 120 applies a function of writing data to a specific address area of the MCU 116 among various functions of the function checking software to a flash memory erase process (PFlash erase sequence) The ABM header field in the memory 114 is deleted.

], ABM 헤더 검사 결과(Check Result for the ABM Header) 4 바이트 필드[CRChead], ABM 헤더 역검사 결과(Inverted Check Result for the ABM Header) 4 바이트 필드[

]로 구성된다. 도 3은 본 발명이 적용되는 엔진 제어기의 플래시 메모리 내 ABM 헤더 영역의 구조를 나타낸 도면이다.The ABM header area in the flash memory includes a user code start address 4-byte field [STADABM], an ABM header ID (Header ID) 4-byte field [ABMHDID] Memory Area to be checked-Start Address 4-byte field [ChkStart], Address range to be checked (Memory Range to be checked-Start Address) 4-byte field [ChkEnd] Result for the Memory Range) 4-byte field [CRCrange], Inverted Check Result for the Memory Range 4-byte field [

Byte field [CRChead], an ABM header check result (ABM header check result), a 4-byte field [

]. 3 is a diagram illustrating a structure of an ABM header area in a flash memory of an engine controller to which the present invention is applied.

The function checker 120 installs the function checking software in the area of the RAM 112 via CAN (Controller Area Network) communication with the engine controller 110 or deletes the ABM header area in the flash memory 114 .

The function tester 120 inspects the function of the engine controller using software for function checking installed in the area of the RAM 112 through CAN (Controller Area Network) communication with the engine controller 110.

FIG. 2 is a flowchart illustrating an engine controller factory initialization method according to an embodiment of the present invention. Referring to FIG.

2, a functional tester 120 according to an embodiment of the present invention is connected to an engine controller 110 having a RAM 112, a flash memory 114, and an MCU 116, The software is installed in the RAM 112 (S210).

At this time, the function tester 120 installs software for function checking in the RAM area through CAN (Controller Area Network) communication with the engine controller.

Here, the CAN communication is a communication method of a serial communication network for a car network, in which various ECUs are connected in parallel with two lines to exchange information among ECUs in a priority order. CAN communication is resistant to electrical noise and has a standard data transmission format and an extended data transmission format as shown in FIG. 4 is a diagram illustrating a data transmission format of a CAN communication used for communication between a functional tester and an engine controller according to an embodiment of the present invention. In Figure 4, the Start Of Frame (SOF) marks the beginning of a message and is used to synchronize the nodes of the bus after a no-load period. An identifier (ID) uses a standard CAN 11-bit identifier and indicates the priority of the message. The lower the binary value, the higher the priority. RTR (Remote Transmission Request) indicates a remote transmission request bit. If this bit is 0, it is a data frame. If it is 1, it means a remote transmission request of a CAN message. The Substitute Remote Request (SRR) occupies the RTR position of the standard frame, and the IDE (Identifier Extension) transmits a standard CAN identifier when the bit is 0, and the transmission of the extended CAN identifier when the bit is 0. R0 and R1 represent reserved bits, and DLC (Data Legth Code) represents the number of data bytes of a data frame. The data field represents 8 bytes (64 bits) of transmission data, and CRC (Cyclic Redundancy Check) means error detection field by 16 bits (15bit + delimiter character) checksum. ACK (ACKnowledge Field) indicates 2-bit (1bit + delimiter character) that a message with no error is transmitted. The End Of Field (EOF) represents the message (frame) end field, the Inter Frame Space (IFS) contains the amount of time required by the controller and indicates that the correctly received frame is moved to the appropriate location in the message buffer area .

Then, the function checker 120 executes the function checking software (S220).

That is, the function tester 120 can check the function of the engine controller by executing the function checking software installed in the area of the RAM 112 through CAN (Controller Area Network) communication with the engine controller.

In addition, the function tester 120 can perform various other functions of the function checking software.

If the function testing unit 120 has selected the function of writing data in the specific address area of the MCU 116 among the various functions of the function checking software (S230-YES) The ABM header area in the flash memory of the engine controller is deleted, and the factory initialization of the engine controller is performed (S240).

That is, the function checker 120 applies a function of writing data to a specific address area of the MCU 116 among various functions of the function checking software to a flash memory erase process (PFlash erase sequence) The ABM header area in the flash memory 114 of the controller 110 is deleted.

At this time, the ABM header area in the flash memory includes 4 bytes of a user code start address, 4 bytes of an ABM header ID, a memory range to be checked-start address 4 Byte, 4-byte address range for checking, 4-byte check result for the memory area, 4-byte check result for the memory range, 4 bytes, 4 bytes of Check Result for ABM Header, and 4 bytes of Inverted Check Result for ABM Header.

Here, the functional tester 120 deletes the ABM header area in the flash memory 114 of the engine controller 110 through the CAN (Controller Area Network) communication as shown in FIG. 4 with the engine controller 110 .

Therefore, even though the housing of the engine controller 110 is sealed and waterproofed, it is software that can not be reprogrammed even if another software is installed in the area of the flash memory 114 for other functions. However, It is possible to perform the factory initialization of the engine controller 110 by deleting the area.

As described above, according to the present invention, when the function or performance is checked through the function tester in the process of producing the vehicle controller, software for function inspection is installed in the random access memory (RAM) area of the vehicle controller, The function of writing the value in the specific address area of the MCU among the various functions of the software is applied to the PFLASH erase sequence of the flash memory so that the header of the alternate boot mode (ABM) ) Area to delete the area to perform the factory initialization.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents. Only. The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

The present invention can be applied to an engine controller factory initialization method and system that can perform factory initialization when inspecting a function or performance of a vehicle controller through a function tester in the process of producing a vehicle controller.

100: Engine controller factory reset system
110: engine controller
112: RAM
114: MCU
116: flash memory
120: Function checker

Claims (11)

An engine controller having a random access memory (hereinafter referred to as RAM), a flash memory (PFlash), and a main control unit (MCU) capable of installing software in addition to a communication function; And
And an alternate boot mode (ABM) header field in the flash memory is deleted through the function checking software by communicating with the engine controller to install function checking software in the RAM area A function tester for performing a factory initialization of the engine controller;
The engine controller factory initialization system.
The method according to claim 1,
Wherein the function checker applies a function of writing data to a specific address area of the main control unit (MCU) among various functions of the function checking software to a flash memory erase process (PFlash erase sequence) And deletes an Alternate Boot Mode header field in the memory.
The method according to claim 1,
Wherein the function tester installs function checking software in the RAM area or deletes an ABM header field in the flash memory through CAN (Controller Area Network) communication with the engine controller. Controller factory reset system.
The method according to claim 1,
Wherein the function tester checks the function of the engine controller using software for function inspection installed in the RAM area through CAN (Controller Area Network) communication with the engine controller.
The method according to claim 1,
The ABM header field in the flash memory includes a User Code Start Address 4 bytes, an ABM Header ID 4 bytes, a Memory Range to be checked-Start Address 4 bytes, Address range for checking 4 bytes, Check Result for the Memory Range 4 bytes, Inverted Check Result for the 4 bytes of a memory range, 4 bytes of an ABM header check result, and 4 bytes of an ABM header check result.
1. An engine controller factory initialization method comprising a random access memory (hereinafter referred to as RAM), a flash memory (PFlash) and a main control unit (MCU)
(a) installing function checking software in the RAM by a function tester;
(b) executing the function checking software by the function checker; And
(c) deleting an alternate boot mode (ABM) header field in the flash memory through the function checking software;
The engine controller factory initialization method comprising:
The method of claim 6,
Wherein the step (c) comprises the step of applying a function of writing data to a specific address area of the main control unit (MCU) among a plurality of functions of the function checking software to a PFlash erase sequence And deletes the ABM header area in the flash memory.
The method of claim 6,
Wherein the step (a) comprises installing software for function checking in the RAM area through CAN (Controller Area Network) communication with the engine controller.
The method of claim 6,
Wherein the step (c) deletes the ABM header area in the flash memory through CAN (Controller Area Network) communication with the engine controller.
The method of claim 6,
Wherein the step (b) comprises inspecting the function of the engine controller using software for function inspection installed in the RAM area through CAN (Controller Area Network) communication with the engine controller .
The method of claim 6,
The ABM header area in the flash memory includes 4 bytes of a user code start address, 4 bytes of an ABM header ID, 4 bytes of a memory range to be checked-start address, 4 bytes, Check Result for the Memory Range 4 bytes, Inverted Check Result for the Memory Range 4 Byte, an ABM header check result (4 bytes), and an ABM header reverse check result (Inverted Check Result for the ABM header).

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