车辆最佳动力性泛函表达及数值解法

Translated title of the contribution: Objective Functional and Numerical Solution Method of Vehicle Optimal Dynamic Performance

Zhi Qiang Guo, Wei Wu*, Yang Liu, Bo Li, Shi Hua Yuan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

In order to achieve best dynamic performance of vehicle, a parameter matching method was proposed for vehicle power train. Firstly, the speed ratio of gear box was optimized based on functional analysis theory. Then taking the speed ratios as functional argument, a general functional form of acceleration time was established. The numerical and optimal solutions of speed ratios were obtained based on Euler finite differential method in calculus of variations. Finally, to analyze acceleration performance in different control strategies, a dynamic model of continuously variable transmission was established. Simulation results show that, the acceleration time of 6~60 km/h can decrease by 8.79% in 100% throttle opening based on the functional control strategy, verifying the feasibility of the functional analysis method for optimal ratio control problems in theory.

Translated title of the contributionObjective Functional and Numerical Solution Method of Vehicle Optimal Dynamic Performance
Original languageChinese (Traditional)
Pages (from-to)688-693
Number of pages6
JournalBeijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology
Volume39
Issue number7
DOIs
Publication statusPublished - 1 Jul 2019

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