Rollover Control Strategy Based on Vehicle Stability Control System
-
摘要: 为提高汽车在极限工况下的侧翻控制功能,建立了包括横摆运动和侧倾运动的8个自由度整车动力学模型.基于传统电子稳定控制(electronic stability control,ESC)系统直接横摆控制,提出了一种包含紧急侧倾控制的综合控制策略.采用ESC标准传感器提供的汽车侧向加速度信息计算侧倾系数,当侧倾系数超过设置的参考值时,紧急侧倾控制被激活;通过对侧向加速度的适时调节,达到对汽车侧翻的有效控制.对直接横摆控制和综合控制进行了鱼钩试验仿真,结果表明,直接横摆控制的汽车在持续小转角下具有一定的抗侧翻能力,而极限大转向工况下会发生侧翻;综合控制则提高了极限工况下汽车ESC系统的抗侧翻能力,并增强了汽车的侧翻控制功能.Abstract: To enhance the rollover control function of vehicles in extreme conditions, a vehicle dynamics model with 8 degrees of freedom covering yaw and roll motions was established, and an integrated control strategy with emergency roll control was proposed based on the direct yaw control of the traditional electronic stability control (ESC) system. The roll coefficient was calculated using the vehicle lateral acceleration provided by the standard ESC sensor. The emergency roll control was activated when the roll coefficient exceeded its reference value, and the vehicle rollover got controlled effectively by adjusting the lateral acceleration in time. The results of fishhook test simulation on direct yaw control and integrated control show that under the direct yaw control strategy, the vehicle has the ability to resist rollover under continuous small steering wheel angle, but cannot resist rollover in extreme conditions with a big steering wheel angle. In contrast, the integrated control strategy improves the ability to resist the rollover in the extreme conditions and enhances the rollover control function of the vehicle ESC system.
-
Key words:
- electronic stability control /
- rollover control /
- yaw control /
- integrated control /
- roll coefficient
-
UNGOREN A, PENG H. Rollover propensity evaluation of an SUV equipped with a TRW VSC system//Proc. of SAE 2001 World Congress. Detroit: SAE Press, 2001: 2001-01-0128. 卢少波, 李以农, 郑玲. 基于制动与悬架系统的车辆主动侧翻控制的研究[J]. 汽车工程, 2011, 33(8): 670-675. LU Shaobo, LI Yinong, ZHENG Ling. A study on vehicle active rollover control based on braking and suspension systems[J]. Automotive Engineering, 2011, 33(8): 670-675. HOPKINS B, TAHERI S, AHMADIAN M. Yaw stability control and emergency roll control for vehicle rollover mitigation//Proc. of SAE 2010 World Congress. Detroit: SAE Press, 2010: 2010-01-1901. 宋小文, 李杰, 王耘, 等. 一种改进的汽车侧翻模型及其应用研究[J]. 汽车工程, 2009, 31(10): 971-975. SONG Xiaowen, LI Jie, WANG Yun, et al. A refined vehicle rollover model and its application[J]. Automotive Engineering, 2009, 31(10): 971-975. 朱天军, 宗长富. 基于改进TTR算法的重型车辆侧翻预警系统[J]. 机械工程学报, 2011, 47(10): 89-94. ZHU Tianjun, ZONG Changfu. Rollover warning system of heavy duty vehicle based on improved TTR algorithm[J]. Journal of Mechanical Engineering, 2011, 47(10): 89-94. YOON S, JUNG J, KOO B. Development of rollover prevention system using unified chassis control of ESP and CDC systems//Proc. of SAE 2006 World Congress. Detroit: SAE Press, 2006: 2006-01-1276. JOHANSSON B, GAFVERT M. Untripped SUV rollover detection and prevention//Decision and Control. Atlantis: IEEE, 2004: 5462-5466. CHO Y J, KWAK B H. A control and analysis of vehicle rollover based on electronic stability control//Proc. of SAE 2007 World Congress. Detroit: SAE Press, 2007: 2007-01-3566. LU J, BROWN T, MEYERS J. Enhanced system for yaw stability control system to include roll stability control function: US, Patent 6654674. 2003-11-25. LU J, MESSIH D, SALIB A. An enhancement to an electronic stability control system to include a rollover control function//Proc. of SAE 2007 World Congress. Detroit: SAE Press, 2007: 2007-01-0809. LIEBEMANN E K, MEDER K, SCHUH J, et al. Safety and performance enhancement: the Bosch electronic stability control (ESP)//Proc. of SAE 2004 World Congress. Detroit: SAE Press, 2004: 2004-21-0060. 欧健, 王林峰, 房占朋. 汽车电子稳定程序模糊控制仿真[J]. 计算机仿真, 2010, 27(7): 288-291. OU Jian, WANG Linfeng, FANG Zhanpeng. The simulation of fuzzy controlling for vehicle electronic stability program[J]. Computer Simulation, 2010, 27(7): 288-291. 孙仁云, 李治. 汽车电子感应制动模糊自整定PID参数控制[J]. 西南交通大学学报, 2010, 45(3): 379-383. SUN Renyun, LI Zhi. Fuzzy self-tuning of PID parameters for automobile sensotronic braking control[J]. Journal of Southwest Jiaotong University, 2010, 45(3): 379-383. HOPKINS B M. Adaptive rollover control algorithm based on an off-road tire model. Blacksburg: Virginia Polytechnic Institute and State University, 2009. LEW J, PIYABONGKARN D, GROGG J. Minimizing dynamic rollover propensity with electronic limited slip differentials//Proc. of SAE 2006 World Congress. Detroit: SAE Press, 2006: 2006-01-1279.
点击查看大图
计量
- 文章访问数: 1110
- HTML全文浏览量: 86
- PDF下载量: 526
- 被引次数: 0