基于路况识别技术的ABS整车控制策略  

ABS Control Strategy for Vehicle Dynamics Based on Road Identification Technology

作　　者：刘文婷[1] 王波[2] 

机构地区：[1]聊城大学汽车与交通工程学院 [2]紫琅职业技术学院汽车运用工程系

出　　处：《天津汽车》2009年第4期34-37,共4页Tianjin AUTO

摘　　要：提出了一种基于路况识别技术的ABS(汽车防抱死制动系统)整车控制方法,首先根据制动压力进行道路自动识别,然后根据路况自动调整左右两侧车轮的制动力之差,以保证车辆制动时的方向稳定性。结合14自由度的虚拟样机整车模型,分别在对接路面和分离路面上进行基于ADAMS/Simulink的联合仿真制动模拟试验。结果表明该方法能够较好地识别路面状态,使车辆在兼顾其制动距离与时间的前提下提高其直线制动的方向稳定性,为一些基于路面状态的汽车主动控制策略提供了条件,因而基于滑移率和制动力矩的路况识别方法在汽车上的实际应用是可行的。This paper points out an ABS control strategy for vehicle dynamics based on road identification technology. Firstly, the method automatically identifies roads according to break pressure and then automatically adjusts the differences of left and right break forces according to road condition so as to ensure the direction stability of vehicle when it breaks. Combined with the ADAMS/Simulink virtual prototype vehicle model with 14 DOFs, this method makes co-simulation break tests on butt road and separated road respectively. The results show that this method can identify road condition much more effectively and it can improve direction stability of straight-line breaks while giving attention to the break distance and break time, which provides preconditions for automobile active break strategy on some certain roads. Therefore, it is feasible for the practical application of the identification based on slip rate and break moment.

关 键 词：路况识别 ABS 虚拟样机 联合仿真 方向稳定性 

分 类 号：U463.6[机械工程—车辆工程]