车辆动力传动一体化控制对换挡过程影响的试验研究  

An Experiment Study on the Influence of Integrated Powertrain Control on Shifting Quality

作　　者：黄英[1] 赵长禄[1] 张付军[1] 孙业保[1] 

机构地区：[1]北京理工大学机械与车辆工程学院,北京100081

出　　处：《汽车工程》2004年第6期710-713,共4页Automotive Engineering

摘　　要：介绍了在小客车上进行的动力传动一体化控制技术应用研究。动力传动一体化控制系统由电控汽油机、4速电液式自动变速器组成 ,利用I2 C总线实现两个电子控制单元的信息共享与动力传动系统的协调控制。重点研究了在 1- 2升挡过程中采用不同一体化控制策略对换挡冲击的影响。试验表明 ,对于由电控汽油机和电液式自动变速器组成的小客车动力传动系统 ,通过推迟点火的方式减小升挡惯性相的发动机输出转矩可以达到减小换挡冲击的目的 ,同时 ,采用发动机转矩控制 +主油压控制的控制策略 ,可以大幅度地减小换挡冲击。An integrated powertr ain control system for a passenger car is presented.The powertrain sy stem consists of an electronically controlled gasoline engine and a 4 speed electro-hydraulic automatic transmission.The two electronic co ntrol units share the information and achieve coordinated control vi a I2C bus.This paper focuses on th e influence of integrated control on shifting quality during 1st to 2nd gear up-shift process.The test result shows that,for the powertra in of passenger car,it is effectiv e to apply spark retarding control to reduce engine output torque so as to reduce shifting shock.Shifti ng shock can also be more effectiv ely reduced by reducing engine out put torque together with the contr ol of the main fluid pressure in h ydraulic system during shifting pr ocess.

关 键 词：换挡冲击 小客车 动力传动系统 自动变速器 换挡过程 电控汽油机 车辆 电液 一体化控制 转矩控制 

分 类 号：U463[机械工程—车辆工程] U469.11[交通运输工程—载运工具运用工程]