| In this thesis, the optimize control theory is used to the Electronic Control of the power transmitting system, to realize the vehicle engine and transmission best matching and the automatic regulation of temperature in the car of department, gives full play to the whole power performance of the car. Traditional way engine and transmission gearbox because receives the hardware organization and the operation way limit, affected the engine power performance display in the very great degree. The control optimize theory introduces the automobile dynamic transfer system, will choose the more reasonableperformance evaluation target, unified the automobile power performance and fuel oil economical performance these two thinks the restriction the concept. The parallel connection gathers the vehicles the practical work condition conducts the thorough research, through at the right moment adjusts the motor car engine and the automatic transmission gearbox controlled variable, enables it to achieve the optimum condition, realizes the vehicles engine with the gearbox best match, by fully displays the vehicles the overall power performance.Except that, the author explains the application of the optimum control theory of conditions-compound shape law in realizing the vehicle to be power transmission optimum to match, on the foundation of the analyzing of the characteristic of the automatic gear box and the engine . In carries on the elaboration to the automobile dynamic system major component in the foundation, proposed could comprehensively reflect the vehicles performance the synthesis appraisal target. In view of the automobile in travel process start, the acceleration, the uniform speed, decelerates and so on several kind of typical operating modes the detailed process carries on the concrete analysis, and fully considers the automobile the power and the fuel oil efficient request, chooses the appropriate vehicles performance evaluation target, established the automobile...
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