A kind of vehicle-mounted ECU software refresh error prevention method and system
An anti-error system and software technology, applied in the direction of program loading/starting, program control devices, etc., can solve the problems of ECU internal program erasure, driving safety impact, ECU false refresh, etc., to improve driving safety and reliability and security, avoiding the effect of false refresh
Active Publication Date: 2016-10-05
GUANGZHOU AUTOMOBILE GROUP CO LTD
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Problems solved by technology
[0004] In order to solve the technical problem of manually distinguishing ECUs in the prior art, it is easy to cause the ECU to be refreshed by mistake, and then cause the internal program of the ECU to be erased, so that the ECU cannot operate normally, and has a potential impact on driving safety, etc. The present invention provides A new type of vehicle ECU software refresh error prevention method
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[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 vehicle-mounted ECU software refreshes the anti-error method, and described method comprises the following steps:
[0041] S1. Read the first DCID value preset in the ECU to be refreshed and the second DCID value preset in the refresh file;
[0042] S2. Comparing whether the first DCID value is consistent with the second DCID value, to determine whether the refresh file is compatible with the ECU to be refreshed;
[0043] S3. If the comparison result of the first DCID value and the second DCID value is yes, then the refr...
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The present invention provides a vehicle-mounted ECU software refresh error prevention method, the method comprising the following steps: S1, read the first DCID value preset in the ECU to be refreshed and the second DCID value preset in the refresh file; S2, compare Whether the first DCID value and the second DCID value are consistent to determine whether the refresh file is compatible with the ECU to be refreshed; S3. If the comparison result between the first DCID value and the second DCID value is yes, then the The refresh file is compatible with the ECU to be refreshed, and the software of the ECU to be refreshed can be refreshed. The invention also provides a vehicle-mounted ECU software refresh error prevention system. In the method and system provided by the present invention, different ECUs are distinguished by preset different DCID values, and the DCID is used as a check digit to judge the compatibility between the refresh file and the internal software in the ECU to be refreshed, which greatly avoids the ECU refresh process In the case of false refresh, the reliability and safety of ECU refresh are improved, and the driving safety is improved.
Description
technical field [0001] The invention relates to the field of automobiles, in particular to a vehicle-mounted ECU software refresh error prevention method and system. Background technique [0002] In the traditional ECU (Electronic Control Unit, electronic control unit) software refresh, there are usually two error-proof methods, one is to affix a label on the ECU shell, and the operator can identify the ECU through the label; the other is to directly identify the ECU through the shape to identify the ECU. [0003] With the development of the automobile industry, the competition in the automobile industry is becoming more and more fierce. The number of models produced by various OEMs is increasing, and the vehicle configuration is becoming more and more complex. The inventors of the present invention have found that not only the same ECU may come from different manufacturers, but even the same ECU produced by the same manufacturer may have different configurations, so it can...
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IPC IPC(8): G06F9/445
Inventor 何晔黄少堂黄丽芳李济泰袁兰秀
Owner GUANGZHOU AUTOMOBILE GROUP CO LTD