Functional and numerical solutions of acceleration performance of tracked vehicles

DOI:	10.11809/bqzbgcxb2023.07.009
Keywords:	functional analysis; dynamic performance; speed ratio control; genetic algorithm
Abstract:	The optimal matching of the transmission device of the tracked vehicle drive system is the key to improving vehicle maneuverability. In order to improve the dynamic performance of a tracked vehicle, this paper abstracts the vehicle acceleration process as a mathematical problem of taking the performance functional extremum, and proposes a functional mathematical characterization of the step variable transmission acceleration performance. The internal and external constraints of the tracked vehicle are considered, and the genetic algorithm of global optimization is then adopted. In addition, the optimal acceleration ratio under different acceleration weight coefficients is solved and analyzed. The acceleration of the tracked vehicle before and after the optimization is compared. The results show that the functionally optimized speed ratio shortens the acceleration time of the vehicle by 7.89% from 0 to 32 km/h. The effectiveness of the functional analysis method to optimize the dynamic acceleration of the tracked vehicle is verified.
Published:	2023-07-28
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