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Method and system for refreshing vehicle-mounted ECU application program

An application and consistent technology, applied in the field of refresh method and system of vehicle ECU application program, can solve the problems of ECU data flashing error and low refresh reliability, so as to prevent ECU data flashing error, improve reliability, and ensure correctness Effect

Inactive Publication Date: 2014-03-12
GUANGZHOU AUTOMOBILE GROUP CO LTD
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Problems solved by technology

[0005] In order to solve the technical problem that the ECU is not identified in the prior art to judge whether the application program is the software required by the ECU, it is easy to have ECU data error and the refresh reliability is low, the present invention provides a Refresh method of in-vehicle ECU application program

Method used

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  • Method and system for refreshing vehicle-mounted ECU application program
  • Method and system for refreshing vehicle-mounted ECU application program

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Embodiment Construction

[0039] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0040] Please refer to figure 1 Shown, a kind of refreshing method of vehicle-mounted ECU application program, described method comprises the following steps:

[0041] S1. Obtain the ECU information of the refresh application program and the vehicle ECU information;

[0042] S2, judging whether the ECU information of the refresh application program is consistent with the vehicle-mounted ECU information; if consistent, then perform step S3;

[0043] S3, allowing the vehicle-mounted ECU to enter the diagnostic programming mode;

[0044] S4. Erase the original applicatio...

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Abstract

The invention provides a method for refreshing a vehicle-mounted ECU application program. The method includes the following steps that S1, ECU information of the refreshing application program and vehicle-mounted ECU information are obtained; S2, whether the ECU information of the refreshing application program is identical to the vehicle-mounted ECU information or not is judged, and if the ECU information of the refreshing application program is identical to the vehicle-mounted ECU information, the step 3 is executed; S3, a vehicle-mounted ECU is in a diagnosis programming mode; S4, an original application program in the vehicle-mounted ECU is erased; S5, a request for uploading data of the refreshing application program is sent out; S6, the data of the refreshing application program are read and transmitted into the vehicle-mounted ECU; S7, transmission is stopped after the data of the refreshing application program are transmitted; S8, the refreshing application program is refreshed to an address scheduled in the ECU. The invention further provides a system for refreshing a vehicle-mounted ECU application program. According to the refreshing method, the ECU information identification step is added on the basis of existing refreshing procedures, ECU data can be effectively prevented from being refreshed by mistake, accuracy of data transmission is guaranteed, and refreshing reliability of the application program is improved.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to a method and system for refreshing a vehicle-mounted ECU application program. Background technique [0002] With the development of automobile technology, the degree of electronization is getting higher and higher, and the difficulty of troubleshooting in automobiles is also increasing, which makes the corresponding automobile diagnosis technology more and more mature and widely used. In recent years, major OEMs are gradually implementing a new function based on automotive diagnostic technology: the online refresh function, which proposes an online refresh of the on-board ECU (Electronic Control Unit) through the diagnostic OBD (On-Board Diagnostics, on-board automatic diagnostic system) interface. , electronic control unit) application method, compared with the traditional method, this method is more convenient and faster. [0003] Specifically, at present, domestic OEMs do not have ...

Claims

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Application Information

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IPC IPC(8): G06F9/445
Inventor 黄丽芳李济泰何晔黄少堂
Owner GUANGZHOU AUTOMOBILE GROUP CO LTD
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