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Data flashing method and device

A technology of data writing and data, which is applied in the direction of data error detection, data reset device, electrical digital data processing, etc., which can solve the problems of long work time and unfavorable batch operation, etc., and achieve Reduce working time, improve brushing efficiency, and prevent data loss

Active Publication Date: 2021-04-23
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The work of erasing and writing the whole area takes a long time, and it is not conducive to batch operations

Method used

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  • Data flashing method and device
  • Data flashing method and device
  • Data flashing method and device

Examples

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Embodiment Construction

[0038] The architecture and business scenarios described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. The technical solutions provided by the embodiments of the present application are also applicable to similar technical problems when the scene arises.

[0039] The terms "first", "second" and the like in the embodiments of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein can be practiced in sequences other than those illustrated or described herein. The implementations described in the following exemplary examples ...

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Abstract

The invention provides a data flashing method and device which are applied to an ECU and used for supporting batch flashing of data and increasing the data flashing rate. In the embodiment of the invention, the method comprises the steps: after a data flashing mode is a univariate flashing mode, receiving at least one piece of ECU data transmitted by external flashing equipment; writing the at least one ECU data into an EOL backup area, and establishing an identifier of a to-be-flashed EOL sub-area corresponding to the at least one ECU data in the EOL backup area; and flashing the at least one ECU data stored in the EOL backup area to the EOL sub-area to be flashed corresponding to the identifier. The data flashing mode provided by the embodiment of the invention supports univariate flashing, that is, at least one ECU data in the EOL subarea is flashed, and all the data in the EOL subarea does not need to be erased and then completely written, so the working time is shortened, and the flashing efficiency is improved.

Description

technical field [0001] The invention relates to the field of automotive electronic control, in particular to a method and device for flashing data. Background technique [0002] Before realizing the control of the vehicle, it is necessary to perform data flashing on the Electronic Control Unit (ECU), that is, the external flashing device transmits data information to the ECU through the communication network, and completes the data writing, so as to realize the management and update of ECU data . [0003] At present, for engine-related data flashing, Unified Diagnostic Services (UDS) or Universal Calibration Protocol (XCP) is generally used. Most of the OEMs and transmission manufacturers use the UDS protocol. In the ECU data flashing process, flashing with different permission levels is divided into parts. For some data, the permissions will be released to the server station and end users. When flashing ECU data, Flash the whole area for each partition. [0004] That is,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F8/65G06F11/10G06F11/14G06F1/24
CPCG06F8/65G06F11/1056G06F11/1433G06F11/1441G06F11/1448G06F1/24
Inventor 潘文卿
Owner WEICHAI POWER CO LTD
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