Straight Driving Efficiency Assessment of Vehicle Transmission Device Based on the Median-rank Weighting

doi:10.12382/bgxb.2022.A018

Abstract

Abstract: Transmission efficiency is one of the important indicators for the performance assessment of vehicle transmission device，which needs to comprehensively consider the influence of various factors. Considering the influence of many factors in the transmission process，a weighting method of no-load power loss and loading efficiency based on median rank is proposed to shorten the test time and obtain a stable comprehensive performance evaluation index of transmission efficiency in straight driving mode，in which the gear positions include six straight driving gear positions and two reverse gear positions under no-load and loading conditions，and four rotating speeds are tested for each gear position. There are seventy-five transmission efficiency test samples at each rotating speed. The median rank weighting method for no-load power loss and loading efficiency is used to obtain the normalized comprehensive performance assessment indicator and give the criterion of whether the comprehensive performance of vehicle transmission efficiency is qualified.The results show that the stable normalized comprehensive performance assessment indicator of transmission efficiency under straight driving mode could be obtained in the first 10 speed measuring points, while the transmission performance of vehicle transmission device could be judged from the criterion.

Key words: vehicletransmissiondevice, transmissionefficiency, straightdrivingmode, medianrank, normalizedcomprehensiveperformanceassessmentindicator

CLC Number:

U463.22

ZHANG Jinbao， ZOU Tiangang， GAO Xiucai， HUANG Ruiyan， GUI Peng， LIU Hongzhe. Straight Driving Efficiency Assessment of Vehicle Transmission Device Based on the Median-rank Weighting[J]. Acta Armamentarii, 2022, 43(S1): 54-59.

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