自动变速车辆坡道行驶工况下换档规律的研究  

Study on Gear shift rules for Automatic Transmission Vehicles in the Ramp

作　　者：薛敏[1] 孙琼[1] 孙剑 

机构地区：[1]合肥工业大学机械与汽车工程学院,合肥230009 [2]湖北省机动车辆及零部件质量监督检验站,武汉430070

出　　处：《上海汽车》2011年第12期15-17,32,共4页Shanghai Auto

摘　　要：从采用一般换档规律的AMT车辆在坡道行驶时容易出现的问题出发,分析了换档循环、意外换档和紧急制动意外加速的原因;提出通过计算理论加速度判断坡道工况的方法;制定修正后的坡道综合控制换档规律。通过仿真分析,验证此方法可以有效解决各种坡道换档问题。Based on the problems appears when AMT vehicle with traditional shift rule is trav- eling in the ramp, the reasons of shift circulation, unexpected shift Up and emergency brake with unex- pected acceleration are analyzed. The method to determine the ramp condition from calculating theoret- ical acceleration is suggested. A comprehensive control shift strategy is established. By simulation a- nalysis, effectiveness of this measure is verified.

关 键 词：自动变速器汽车换档循环 

分 类 号：U463.212[机械工程—车辆工程]