| 电动助力转向系统的建模及其全工况控制 |
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| 引用本文： | 左虎彪,邓兆祥,任夏楠,张军辉,鹿鹏程. 电动助力转向系统的建模及其全工况控制[J]. 世界科技研究与发展, 2011, 33(5): 753-756,752 |
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| 作者姓名： | 左虎彪 邓兆祥 任夏楠 张军辉 鹿鹏程 |
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| 作者单位： | 1. 重庆大学机械传动国家重点实验室,重庆,400044
2. 重庆大学机械传动国家重点实验室,重庆400044;汽车噪声振动和安全技术国家重点实验室,重庆400039 |
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| 摘 要： | 将电动助力转向系统模型、轮胎模型以及非线性整车模型联系起来，建立完整的汽车转向动力学模型。针对EPS转向、回正、阻尼三种不同的工况，采用自适应模煳PID扣PID控制算法对EPS分刺进行了助力、回正、阻尼控制。仿真结果表明：所设计酶动力特性比较好的解决了转向轻便性和路感的矛盾，回正控制改善了车辆低速对低速时正性，抵制了车辆高速时的回正超调现象，阻尼控制能够有效的抑制路面的高频干扰，提高了汽车高速直线行驶的稳定性。
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| 关 键 词： | EPS 仿真 稳定性 回正性 |
Modeling and Control of EPS at All Operating Conditions |
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| ZUO Hubiao,DENG Zhaoxiang,REN Xianan,ZHANG Junhui,LU Pengcheng. Modeling and Control of EPS at All Operating Conditions[J]. World Sci-tech R & D, 2011, 33(5): 753-756,752 |
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| Authors: | ZUO Hubiao DENG Zhaoxiang REN Xianan ZHANG Junhui LU Pengcheng |
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| Affiliation: | 1. The State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400044 ; 2. The State Key Laboratory of Vehich NVH and Satety Technology, Chongqing 400049) |
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| Abstract: | EPS and tire model,nonelinear vehicle are connected to the establishment of a complete model for steering property. For different conditions on EPS turn, aligning and damping, Power, aligning and damping control are carried out on EPS with self-adapt fuzzy PID and PID. Simulation results show that the contradiction of steering easiness and road feel is solved by the power control; the wheel returnability at low speed is improved by aligning control, with the aligning overshoot at high speed restrained ; the influence of high frequency road disturbance is attenuated by damping control,with the stability of the vehicle at high speed driving in straight line improved. |
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| Keywords: | EPS simulation stability returnability |
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