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Automobile electronic control unit upgrading method and system capable of transmitting while caching

A technology of control unit and automotive electronics, which is applied in the general control system, control/regulation system, test/monitoring control system, etc. It can solve the problem of low efficiency of ECU software flashing and upgrading, so as to improve the efficiency of flashing and upgrading and save writing The effect of entering time

Pending Publication Date: 2022-05-10
ABUP TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the way of serial operation makes the flashing and upgrading of ECU software less efficient

Method used

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  • Automobile electronic control unit upgrading method and system capable of transmitting while caching
  • Automobile electronic control unit upgrading method and system capable of transmitting while caching
  • Automobile electronic control unit upgrading method and system capable of transmitting while caching

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Embodiment Construction

[0030] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. The present invention is not limited to this embodiment, and other embodiments may also belong to the scope of the present invention as long as they conform to the gist of the present invention.

[0031] In a preferred embodiment of the present invention, based on the above-mentioned problems in the prior art, a method for upgrading an automotive electronic control unit while buffering and transmitting is now provided. At least one cache module and a memory are pre-configured in the automotive electronic control unit ; The automotive electronic control unit upgrade method includes a parallel data cache process and a data writing process;

[0032] Such as figure 1 As shown, the data caching process includes:

[0033] Step A1, the vehicle electronic control unit receives an external upgrade data transmission service request;

[0034] In step A...

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Abstract

The invention provides an automobile electronic control unit upgrading method and system capable of transmitting while caching, and relates to the technical field of automobile software upgrading, and the method comprises a data caching process and a data writing process which are parallel; the data caching process comprises the following steps: step A1, the automobile electronic control unit receives an external upgrade data transmission service request; a2, the automobile electronic control unit caches upgrade data contained in the upgrade data transmission service request to a cache module, then feeds back first response information representing confirmation, and returns to the step A1 to receive a next upgrade data transmission service request sent by the outside based on the first response information; the data writing process comprises the step that when the upgrading data exist in the cache module, the automobile electronic control unit writes the upgrading data into the storage from the cache module. The method has the beneficial effect that the flashing upgrading efficiency of the automobile electronic control unit is improved.

Description

technical field [0001] The invention relates to the technical field of automotive software upgrades, in particular to a method and system for upgrading an automotive electronic control unit while buffering and transmitting. Background technique [0002] FBL (FlashBootloader) is a bootloader for flashing ECU software through CAN bus diagnostic service. During the flashing and upgrading process of the FBL of the Electronic Control Unit (ECU) in the car, the traditional implementation is that after the FBL receives the diagnostic service 0x36 request, it first writes the data into the Flash of the electronic control unit, and confirms the write. Reply with an affirmative response after the login is successful. Then receive the next diagnostic service 0x36 request until all upgrade data is transmitted. Each cycle process includes the following several times: 0x36 time t for service transmission data 1 ; FBL writes data to Flash operation time t 2 ;FBL waits for the next 0x36...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F8/65G05B23/02
CPCG06F8/65G05B23/0213
Inventor 李业尤杰
Owner ABUP TECH CO LTD
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