面向侧翻试验的线控主动转向试验台架构建

Test Bench Construction of Active Steerbywire for Rollover Research

摘要:

为了研究通过线控主动转向系统实现的侧翻控制，需要建立合适的试验台架.首先分析了面向侧翻的线控主动转向硬件在环实验平台结构，建立了整车模型、实验管理软件和硬件平台.硬件平台中包括转向器、磁粉制动器转矩模拟加载装置和数据采集装置.分别在75°方向盘角脉冲、25°方向盘角阶跃、20 km?h-1车速紧急调头、80 km?h-1车速双移线和70 km?h-1车速蛇形工况下，对仿真和实验下的表征整车侧翻程度的车身侧倾角进行了监测，得到两种结果相近，说明了该试验台架的侧翻实验的适用性.

关键词:汽车侧翻; 线控主动转向; 硬件在环; 磁粉制动器

Abstract:

In order to study the rollover control through active steerbywire system, a suitable test bench was requested. First, a hardwareintheloop experiment platform structure of active steerbywire for rollover was analyzed. The vehicle model, experiment management software and hardware platform were established. The hardware platform was composed of steering system, torque simulation loading device with magnet brake and data acquisition device. On the condition of 75° steering wheel angle of pulse test, 25° steering wheel angle of step test, 20 km?h-1 speed of Jturn test, 80 km?h-1 speed of double lane change test and 70 km?h-1 speed of snake test rollover angle of vehicle body which was used to characterize roll degree in the simulation and experiment were monitored. Results of which are close to each other. It indicates the applicability of the test bench for the rollover test.

Key words:vehicle rollover; active steerbywire; hardwareintheloop; magnet brake