作者：涂安全1, 罗贤虎1, 李星1, 韩志军2
作者单位：1. 安徽江淮汽车股份有限公司技术中心, 安徽 合肥 230601;
2. 太原理工大学力学学院, 山西 太原 030024
关键词：自动挡汽车;纵向加速度;换挡质量;换挡时间;振动剂量值
摘要：
换挡质量一直是双离合自动变速箱电控系统的重难点，基于车辆纵向加速度动态测量，提出一种自动挡车型换挡质量评价系统，该系统利用加速度传感器、NI数据采集器及CANape等设备，采集换挡过程中的换挡时间和纵向加速度信号，通过自编程序计算得到换挡过程中的振动剂量值（VDV）、加速度差值以及换挡时间，以此来客观评价车辆在踩油门升挡、踩油门降挡、松油门升挡、松油门降挡4类换挡工况下的换挡品质。利用某DCT车型，按照该评价系统对其换挡质量进行测试，结果表明：该系统能够准确对4类换挡工况进行客观的数据评价，能够准确识别出影响换挡质量的因素，证明此方法有效可行。
Study on shift quality evaluation system of automatic car
TU Anquan1, LUO Xianhu1, LI Xing1, HAN Zhijun2
1. R & D Center, Anhui Jianghuai Automobile Co., Ltd., Hefei 230601, China;
2. College of Mechanics, Taiyuan University of Technology, Taiyuan 030024, China
Abstract: The shift quality has always been a key and difficult point in the electronic control system of dual-clutch transmission. Based on vehicle longitudinal acceleration dynamic measurement, an automatic shift quality evaluation system was proposed. The system used acceleration sensor, NI data acquisition and CANape, to collect the shift time and the longitudinal acceleration signals. In calculating the vibration dose value(VDV), acceleration difference and shift time by self-compiled software, and in order to objectively evaluate the shift quality of the vehicle in four types of gear shift such as power on up shift, power on down shift, power off up shift, power off down shift. Using a DCT vehicles, according to the evaluation system to test the quality of its shift. The results show that the system can accurately evaluate four kinds of shift conditions, can accurately identify the factors that affect the quality of the shift, it is proved that this method is effective and feasible.
Keywords: automatic car;longitudinal acceleration;shift quality;shift time;vibration dose value
2017, 43(11): 124-128 收稿日期: 2017-03-25;收到修改稿日期: 2017-05-10
基金项目: 国家“863”高技术研究发展计划（2012AA111711）
作者简介: 涂安全(1982-),男,安徽合肥市人,工程师,硕士,主要从事发动机、自动变速箱电控系统研究。
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