ECU updating method and system based on file system

A file system and update method technology, which is applied in the transmission system, electrical components, software deployment, etc., can solve the problems that affect the driver's use, take a long time, and the CAN bus transmission rate is slow

Pending Publication Date: 2020-04-24
SHANGHAI HEQIAN ELECTRONICS TECH CO LTD
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  • Description
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  • Application Information

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Problems solved by technology

However, the transmission rate of the CAN bus is slow, and the SOC update is an overall re

Method used

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  • ECU updating method and system based on file system
  • ECU updating method and system based on file system
  • ECU updating method and system based on file system

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Embodiment Construction

[0071] In order to have a clearer understanding of the technical features, purposes and effects of this document, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings, and the same symbols in each figure represent the same parts. In order to make the drawings concise, the schematic diagrams in the drawings show the relevant parts of the present invention, but do not represent the actual structure of the product. In addition, in order to make the drawings concise and easy to understand, in some drawings, only one of the components having the same structure or function is schematically shown, or only one of them is marked.

[0072] As for the control system, functional modules and application programs (APP) are well known to those skilled in the art, they can take any appropriate form, either hardware or software, multiple functional modules discretely set, or It is multiple functional units integrated int...

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Abstract

The invention provides an ECU updating method and system based on a file system. The method specifically comprises the following steps: external equipment is connected with an ECU containing an operating system through a vehicle-mounted Ethernet, after safety connection is established, the external equipment transmits the files needing to be upgraded to the ECU, the operating system in the ECU conducts replacement, addition and other operations on the old files through the corresponding upgrading files according to the upgrading requirement, and then restart upgrading is conducted. In the upgrading process, safety and integrity verification of files and automatic backup before and after upgrading are improved. Compared with the prior art, transmission based on a vehicle-mounted Ethernet isadopted, the updating time is reduced by more than 50%; in consideration of the characteristics of addition, modification, deletion and the like of file update, a part of commands are added, and theflashbootloader update process defined by the original 14229-2 is simplified and updated. Only files of the module need to be updated according to the characteristics of an ECU operating system, and overall flash does not need to be conducted in a traditional ECU updating method.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to an ECU update method and system based on a file system. Background technique [0002] With the popularization of automobiles, more and more automobiles have entered thousands of households. With the continuous improvement of people's living consumption level, the number of automobiles has also continued to increase. Everyone has higher and higher requirements for the intelligence of electrical appliances in the car. Various kinds of software are gradually increasing, and the functions of various modules are constantly being developed and improved. Even though cars are being sold to consumers, they still need to be upgraded for efficiency and functionality. In smart cars, many ECUs (controllers), such as in-vehicle central control and instrument control, etc., which require a large number of processing units, use MCU (Microcontroller Unit) and SOC (System on Chip) to combine, and MCU i...

Claims

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Application Information

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IPC IPC(8): G06F8/65H04L29/08
CPCG06F8/65H04L67/06
Inventor 肖文平黄飞张航陈柱
Owner SHANGHAI HEQIAN ELECTRONICS TECH CO LTD
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