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路感
    PD control strategy and the factors influencing the driver's road feeling are discussed.
    分析了现有的计算目标电流PD控制策略和PD控制策略下影响驾驶员路感的因素。
    Road Feeling Characteristies of Conventional Steering Systems and The Approach to Its Refinemen
    常规转向系统的路感特性及其改善途径
    To make the steering system high performance is that the system can carry out multi-goals control according to the vehicle states and driver requirements to acquire the steering handiness, better road feeling, better anti-interfering performance and faster response.
    转向系统的高性能化是指其能够根据车辆的运行状况和驾驶员的要求实行多目标控制,以获得良好的转向轻便性、较好的路感、较高的抗干扰能力和较快的响应性。
    Electric Power Steering, is a new high-tech which follows the development of modern automobile, has advantages both in energy saving, environmental protecting, drive safety, making higher steering performance, better road feeling, has shown its tremendous direction.
    在追求高效节能、高舒适性和高安全性的今天,电动助力转向系统(EPS)作为一种全新的汽车动力转向系统,以其节能、环保、更佳的操纵特性和转向路感,成为动力转向技术研究的焦点。
    In the paper,taking CA1141 truck as the example,is analyzed,and it is found that its dry friction is a little bigger,steering stiffness is lower and nonlinear road feeling at high speed is not ideal.
    以CA1141载货汽车作为实例分析,发现该车转向干摩擦偏大,转向刚度偏低,高速行驶时的非线性路感不够理想。
    The return moment of steering wheel was yeilded to provide road feeling for drivers by means of modeling.
    通过对方向盘回正力矩的建模 ,模拟生成了为驾驶员提供路感的方向盘回正力矩 ;
    Finally, the simulation results showed that this optimal control method could attenuate the random road excitation, torque sensor measurement noises, model errors and disturbances reduce oscillations that might occur in the steering column, provide satisfied road feeling for drivers, the controller improves the robust performance of EPS system and enhances maneuverability of the vehicle.
    最后进行了仿真分析,其结果表明采用这种最优控制方法能有效地抑制路面随机激励、转矩传感器的量测噪声、模型参数不确定所引起的干扰以及减少转向盘的振动,使驾驶员获得较满意的路感,设计的最优控制器使闭环系统有较强的鲁棒性,提高汽车的操纵性能。
 

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