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A program loading and guiding method for an automotive electronic control unit

An automotive electronic control unit and program loading technology, which is applied in software deployment and other directions, can solve the problems of core code leakage, inability to coordinate the post-service and maintenance of automotive electronic control units, etc., and achieve strong anti-interference ability, fast communication speed, and prevent The effect of the leak

Active Publication Date: 2018-05-15
SHAANXI FAST GEAR CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for different levels of staff (developers, field service personnel, repair shop electricians), if the functions of the Bootloader are not divided and restricted, it will be impossible to coordinate the post-service and maintenance of the automotive ECU, and may even cause core code failures. leak issue

Method used

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  • A program loading and guiding method for an automotive electronic control unit
  • A program loading and guiding method for an automotive electronic control unit
  • A program loading and guiding method for an automotive electronic control unit

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Experimental program
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Embodiment Construction

[0055] Embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings:

[0056] see figure 1 , a method for loading and guiding a program of an automotive electronic control unit, the automotive electronic control unit is connected to a PC through a CAN bus, and the storage space of the automotive electronic control unit is divided into the following four parts:

[0057]Bootloader storage area: used to store Bootloader software; Bootloader software is mainly responsible for the booting and downloading and updating of application software, and also integrates functions such as storage area encryption protection, parameter calibration, fault diagnosis, and software version query. It is stored in the car battery 0x000000 address in the storage space of the control unit, and it will automatically start running from this address after power-on. The Bootloader software will initialize the system hardware, realize the corresp...

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Abstract

The invention discloses a program loading and guiding method for an automobile electronic control unit. The automobile electric control unit is connected to a PC through a CAN bus, and the storage space of the automobile electric control unit is divided into the following four parts: Bootloader storage area: used for storing Bootloader software ;Application program storage area, used to store application program software; Parameter storage area, used to store relevant parameters of automotive electronic control unit; Program version storage area, used to store software version information and software update records of application programs in automotive electronic control unit . The invention is convenient for development and service personnel to understand the use of the automobile electronic control unit, makes the software of the automobile electronic control unit traceable, reduces the misoperation of the automobile electronic control unit during on-site service, and prevents the leakage of the core code of the product .

Description

technical field [0001] The invention belongs to the field of software management and maintenance of automobile electronic control units, and in particular relates to a program loading and guiding method of automobile electric control units. Background technique [0002] Software loading bootloader (Bootloader) is a piece of code that runs before the application program in the embedded system and is used to start and load the application program, which is a key step in system development. On the one hand, it provides program download and update functions, and on the other hand, it provides convenience for program debugging and expansion. [0003] The traditional bootloader usually communicates with the PC through the serial port. The anti-interference ability of this communication method is poor. The serial port needs to be specially reserved for the automotive electronic control unit. When the automotive electronic control unit needs to update the program, it often needs to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F8/65
Inventor 陈彤李睿
Owner SHAANXI FAST GEAR CO