基于ESP和ABS的汽车辅助制动装置安全控制系统设计

Design of safety control system for automobile auxiliary braking device with ESP and ABS

传统设计下,汽车辅助制动装置安全控制系统的力矩分配不均,导致车辆制动距离过大、漂移率激增,威胁汽车驾驶安全。因此基于ESP和ABS的控制特点,设计全新的汽车辅助制动装置安全控制系统。该系统在硬件上对数据采集板端口进行改进,辅助系统执行制动控制指令。在软件设计方面,基于ABS设计复核控制参数,基于ESP估计车辆质心侧偏角,通过降低复核控制参数的误差,完善制动力矩的平衡分配方式,实现对制动装置的安全控制。实验结果表明,与传统设计相比,此次设计的控制系统的性能更好,通过力矩能平衡分配缩短车辆制动距离,同时将漂移率控制在标准范围内。由此可见,此次设计的控制系统安全性更高,为行车安全提供更完善的技术支持。

In the traditional design,the torque distribution of the safety control system of the automobile auxiliary braking device is uneven,which leads to the excessive braking distance and the sharp increase of the drift rate of the vehicle,so as to threaten the driving safety of the vehicle.Therefore,a new safety control system of automobile auxiliary braking device is designed on the basis of the control characteristics of ESP and ABS.The port of data acquisition board in hardware of the system is improved to make the auxiliary system execute the brake control instructions.In the aspect of software design,the review control parameters are designed on the basis of ABS and the vehicle centroid side angle is estimated with ESP to improve the balance distribution mode of braking torque by reducing the error of review control parameters,and achieve the safety control of the braking device.The experimental results show that,in comparison with the traditional control system,this control system′s performance of is better,its vehicle braking distance is shortened by the moment balance distribution,and its drift rate can be controlled within the standard range.It can be seen that the control system designed in this paper has higher safety and can provide more perfect technical support for driving safety.