中国机械工程2016，Vol.27Issue(11)：1557-1561,5.DOI:10.3969/j.issn.1004-132X.2016.11.025
基于改进TTR算法的车辆侧翻预警研究
Research on Vehicular Rollover Warning Based on Improved TTR Algorithm
摘要
Abstract
The TTR method might realize vehicle rollover warning,but there existed some prob-lems(i.e.premature warning,hysteretic warning),because rollover threshold was difficult to precise-ly set up due to changing traffic conditions.In order to improve the traditional TTR method and the effectiveness of vehicle rollover warning,three degrees of freedom of vehicle dynamics model was es-tablished.A rollover evaluation index was proposed by using the relative value,i.e.ratio of immediate lateral acceleration to the real time lateral limit acceleration,instead of absolute value such as roll an-gle or lateral acceleration for rollover warning.According to the current vehicle dynamic states,TTR value in the forthcoming was calculated in real time.Finally,based on the improved TTR,the criti-cality of rollover threat in the forthcoming was predicted,and the vehicle rollover warning was a-chieved.The results show that comparing with two traditional TTR rollover warning algorithms,the improved TTR rollover warning algorithm may be used to predict rollover more precisely.关键词
侧翻预警/改进侧翻时限/车辆动力学/侧向极限加速度Key words
rollover warning/improved time to rollover(TTR)/vehicle dynamics/limiting later-al acceleration分类
交通工程引用本文复制引用
褚端峰,崔剑,邓泽健,田飞,吴超仲..基于改进TTR算法的车辆侧翻预警研究[J].中国机械工程,2016,27(11):1557-1561,5.基金项目
国家科技支撑计划资助项目(2014BAG01B03) （2014BAG01B03）
车路协同与安全控制北京市重点实验室开放基金资助项目 （）
