| 牵引力控制系统中最优驱动力矩控制 |
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| 引用本文： | 杨财,宋健,李亮,黄全安,李红志.牵引力控制系统中最优驱动力矩控制[J].清华大学学报(自然科学版),2008,48(11). |
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| 作者姓名： | 杨财 宋健 李亮 黄全安 李红志 |
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| 作者单位： | 清华大学,汽车工程系,汽车安全与节能国家重点试验室,北京,100084 |
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| 基金项目： | 国家自然科学基金
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| 摘 要： | 为了解决低附着路面上发动机输出力矩过大引起的驱动轮过度滑转及路面附着系数利用率低的问题,提出了牵引力控制系统中最优驱动力矩控制的概念,并给出了其实现方法.将理论分析结果和实车试验数据特点相结合,利用参考车速来估算路面附着系数并由此计算最优驱动力矩.利用PID控制器控制发动机动态输出力矩以实现最优驱动力矩控制.实车试验结果表明;低附路面上该方法能够有效控制发动机的驱动力矩,使得驱动轮的滑转率保持在最优滑转率处,对路面附着系数的利用率达到90%以上,该方法能够提高车辆在低附路面上的驱动能力.
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| 关 键 词： | 车辆动力学 扭矩控制 路面附着系数 牵引力控制 |
Optimum driven torque control for traction control systems |
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| YANG Cai,SONG Jian,LI Liang,HUANG Quanan,LI Hongzhi.Optimum driven torque control for traction control systems[J].Journal of Tsinghua University(Science and Technology),2008,48(11). |
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| Authors: | YANG Cai SONG Jian LI Liang HUANG Quanan LI Hongzhi |
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| Affiliation: | YANG Cai,SONG Jian,LI Liang,HUANG Quanan,LI Hongzhi (State Key Laboratory of Automotive Safety , Energy,Department of Automotive Engineering,Tsinghua University,Beijing 100084,China) |
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| Abstract: | High engine output torque may lead to high slip ratios of driven wheels and low utilization of road friction coefficients on a slippery road.The concept of optimum driven torque control was introduced to solve this problem.With consideration of both theoretical analyses and experimental data,the vehicle reference velocity was used to estimate the road friction coefficient and calculate the optimum driven torque.The optimum driven torque control was realized by controlling the dynamic engine output torque wi... |
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| Keywords: | vehicle dynamics torque control road friction coefficient traction control |
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