摘要
介绍了一种基于SAE J1939协议的坡道识别算法,根据车辆系统动力学原理计算道路的坡度。首先通过SAE J1939协议获取发动机信号并据此先后计算出发动机输出转矩和车辆加速度,得到道路的坡度,并根据重型汽车的特点,采用了相应的数据处理方法。结果显示,这种坡道识别算法简便、实用、高效、准确,能够满足车辆AMT系统的要求。
A road slope recognition algorithm based on SAE J1939 protocol is presented, which applies vehicle system dynamics to calculate road slope. Specifically, engine signals are obtained from SAE J1939 protocol first, based on this then, engine output torque and vehicle speed are calculated, finally road grade is obtained, and followed by data processing in accordance with the features of heavy truck. The results show that the algorithm is convenient, practical, efficient and accurate, meeting the requirements of vehicle AMT system.
出处
《汽车工程》
EI
CSCD
北大核心
2010年第7期640-642,647,共4页
Automotive Engineering
