Car Engine Cold Start Parameters Of Automatic Test And Diagnostic Systems

This paper deals with synchronous measure technology of the cylinder pressure with the engine cold start by adoping micro-chip Aduc812 , and it discuss the analysis of breakdown of engine cold start with the mixture of technology of information .Through the analysis of the parameters of cylinder pressure of the engine cold start, turning speed and starting electricity , and according to the measure data and witness ,a theory is to be inferred , and with the help of breakdown-checking systems, the engine piston groups and the breakdown of starting system can be judged .At last, the .remote measure technology of cylinder pressure's parameters.According to the phenomenon that some vehicles may come cross the starting difficulty after the engine running a period of time , the paper firstly analyzes , the practical meaning of engine cold start parameter for automatic testing and diagnostic systems, according to Dempster-Shafter amalgamation rule, requirement of proof , aining at concrete fact of breakdown diagnosing for engine cold start .conforming basic probability distribution function, it presents concrete realization for decision-making amalgamation arithmetic, completes for development of soft and hard wares of automation synchronous messure of engine cold start' s parameter. The breakdown of time superman engine start system is analyzed in detail .Finally, the designation of soft and hard wares for the wireless transmission of engine cold start's parameter.