Car controller flash control method and device and car bus system

A technology of automobile controller and writing control, which is applied in the field of automobile bus system and automobile controller flashing control, can solve the problems of long time consumption, affecting vehicle generation and testing speed, etc. Effects on build and test efficiency

Active Publication Date: 2014-03-05
上海涵润汽车电子有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0005] In view of this, the purpose of this application is to provide a method and device for flashing an automobile controller, and an automobile bus system, so as to solve the problem that the existing control method can only flash ECUs one by one, resulting in the cost of flashing all the ECUs of the vehicle. The time is too long, which affects the speed of vehicle generation and testing

Method used

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  • Car controller flash control method and device and car bus system
  • Car controller flash control method and device and car bus system
  • Car controller flash control method and device and car bus system

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Embodiment Construction

[0049] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0050] The embodiment of the present application discloses an automobile controller flashing control method, device and an automobile bus system to solve the problem that the existing control method can only flash ECUs one by one, resulting in too long time for flashing all ECUs of the vehicle , a problem that affects the speed of vehicle generation and testing.

[0051] refer to figure 1 , the automobile controller flashing control method provided in Embodiment 1 of the present applicatio...

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Abstract

The invention discloses a car controller flash control method and device and a car bus system. At the time of controlling ECU flash, a preprogramming control instruction is sent to all ECUs in a CAN bus system; according to response messages fed back by the ECUs, it is judged that the corresponding ECUs enter a preprogramming phase; when the response messages fed back by all the ECUs are received, all the ECUs are controlled to conduct flash simultaneously; after all the ECUs finish flashing, all the ECUs are controlled to conduct processing after programming. As a result, the phenomenon that the state of the ECU conducting flash changes and even the flash fails due to the fact that another ECU enters the preprogramming phase is avoided, simultaneous flash of all the ECUs is realized, time consumed for application flash is greatly shortened for the whole CAN bus system, and vehicle generation and testing efficiency are improved.

Description

technical field [0001] The present application relates to the technical field of automotive diagnostics, in particular to an automotive controller flashing control method and device, and an automotive bus system. Background technique [0002] ECU (Electronic Control Unit) electronic control unit, also known as "driving computer", "vehicle computer", etc., is a microcomputer controller for automobiles, which is installed in the engine system, four-wheel drive system, electronically controlled automatic transmission, and airbag system of the automobile. , multi-directional adjustable electric control seat and other systems; multiple ECUs form an automotive CAN bus system through multiplexing communication network technology. Each ECU has different functions, and its built-in applications are also different, so it is necessary to flash different applications for each ECU. [0003] The existing UDS (Unified diagnostic Services, Unified Diagnostic Services)-based CAN bus control...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/04G06F9/24
Inventor 王修峰
Owner 上海涵润汽车电子有限公司
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