【摘要】 阐述了汽车线控转向系统对自动驾驶发展的重要意义,梳理了线控转向技术的发展概况以及典型的线控转向布置方案,聚焦核心控制策略,对路感反馈控制中上层反馈力矩估计和下层执行器控制,以及转向执行控制中上层变传动比控制、车辆稳定性控制和下层转向执行器控制的思路、方法进行了综述,分别阐述了两部分总成控制的关键技术以及面临的挑战,并提出线控转向系统控制技术的发展趋势。更多还原

【Abstract】 The significance of The Steer-By-Wire(SBW) system for automatic driving has been clarified.Summarizing the SBW development and its typical layout schemes firstly, then this paper focused on the core control strategy, which contained the ideas, methods of upper feedback torque estimation and lower actuator control for road sense feedback control. By contrast in the structure of steering control, variable drive ratio control, vehicle stability control and steering actuator control were also elaborated. The key technologies and challenges of road sense feedback control and steering control were explained respectively. Finally, the authors predicted development trend of the SBW control technology.更多还原