Automobile power transmission system optimization method

The invention relates to an automobile power transmission system optimization method, which comprises the following steps of: setting a function of engine design parameters and operation parameters, establishing an optimization model of an engine according to automobile power performance requirement...

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Bibliographic Details
Main Authors WANG YIJUN, SHI JINSHUI, WU CHANGZHONG, ZHONG BAOHUA, WU MINGQING
Format Patent
LanguageChinese
English
Published 06.09.2019
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:The invention relates to an automobile power transmission system optimization method, which comprises the following steps of: setting a function of engine design parameters and operation parameters, establishing an optimization model of an engine according to automobile power performance requirements and automobile fuel economy requirements, and optimally selecting optimal engine parameters according to the optimization model. On the basis of simulation calculation of automobile dynamic property and fuel economy, dynamic property requirements of an automobile and requirements of speed ratio intervals of various gears of a transmission are taken as constraint conditions, multi-working-condition fuel economy is taken as an objective function, and an optimization model of the speed ratio of the automobile transmission is established. An interval optimization model of the automobile transmission system parameters is established, the interval number is used to represent an actual variable needing to be shared, and
Bibliography:Application Number: CN201910651557