基于地头转弯工况的拖拉机自动换挡规律研究  

Research on automatic shift schedule of tractor based on turn-row

作　　者：符冉[1] 周志立[1] 郭志强[2] 徐立友[1] 

机构地区：[1]河南科技大学车辆与交通工程学院,河南洛阳471003 [2]中国一拖集团有限公司,河南洛阳471003

出　　处：《中国农机化学报》2016年第4期181-184,206,共5页Journal of Chinese Agricultural Mechanization

基　　金：河南省重点科技攻关计划基金项目(142102210424);河南省教育厅重点科技攻关计划基金项目(14B460015);河南省重点产学研合作项目(132107000052)

摘　　要：针对自动变速挡拖拉机在地头转弯时,其燃油经济性不佳且容易发生频繁换挡的问题,本文从换挡规律制定本身出发,归纳一般换挡规律局限性的原因,提出一种智能修正型换挡规律,对换挡控制参数和挡位进行共同修正。基于提出的修正型换挡规律,以东方红1804拖拉机为研究对象,建立其犁耕工况换挡模型,进行仿真验证。结果表明:拖拉机犁耕工况地头转弯等效燃油消耗率平均降低了3.26%,且减少了频繁换挡。该研究为拖拉机换挡规律的理论完善和实车运用提供了依据。Specific for automatic transmission shift tractor making a turn at the edge of field,the fuel economy is not good and it also has the problem of frequent shift.This research,from the shift schedule itself,summed up the reason of limit of general shift schedule,put forward a kind of intelligent modified shift schedule,and modified both shift parameter and the shift.Based on the modified shift schedule,taking YTO—1804as research object,the shift model at plough condition was set up and stimulation verification was made.The result manifested that the fuel consumption rate of tractor taking turn at plough condition lowered 3.26% on average and also reduced shift frequency.This research provided foundation for theoretical improvement of shift schedule and vehicle application.

关 键 词：拖拉机 自动变速 地头转弯 换挡规律 智能修正 

分 类 号：S219[农业科学—农业机械化工程]