This paper proposed a fuzzy curve detection method based on lateral acceleration.First, the dynamics model under the curve driving condition was created.Then, the relationship between the lateral acceleration and curve was analysed. The fuzzy curve detection algorithm based on lateral acceleration and its rate of change was realised. The test results showed that this method is feasible and the detection result can be used in automobile electric control system, for example automatic transmissions control system, etc. The security under the curve driving condition was also improved.
The software status identification with a message authentication code generated by means of the hash function method that falls within the message authentication technology is discussed in this document. In comparison with the software status management with a software version number that is used widely at present, the message authentication code is highly correlated with the software content to prevent failure of the software status management due to artificial negligence and provide an effective technique for software status management.
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