| 基于转向轻便性及回正性能设计的EPS应用 |
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| 引用本文： | 赵林峰,陈无畏,秦明辉,秦炜华.基于转向轻便性及回正性能设计的EPS应用[J].机械工程学报,2009,45(6). |
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| 作者姓名： | 赵林峰 陈无畏 秦明辉 秦炜华 |
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| 作者单位： | 1. 合肥工业大学机械与汽车工程学院,合肥,230009
2. 广州智光电气股份有限公司,广州,510760 |
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| 基金项目： | 国家自然科学基金资助项目(50575064) |
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| 摘 要： | 在建立电动助力转向系统(Electric power steering system,EPS)数学模型的基础上,将方向盘转矩传感器测得的转矩信号和估算的转向盘转角值相结合以判断转向的状态,然后运用模糊比例微分(Proportion derivative,PD)控制进行常规助力控制或回正控制。仿真结果表明,原地和低速条件下转向盘操纵转矩明显降低,车辆回正性能显著提高。并通过相关的软、硬件设计实现所设计的控制策略。为检验控制策略合理性和控制软件可行性以及自主设计控制单元(Electronic control unit,ECU)的可靠性,参照相关国家标准,进行无助力、自主研发的EPS实车对比试验,试验结果与仿真结果相吻合。
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| 关 键 词： | 电动助力转向 数学模型 控制策略 实车试验 |
Electric Power Steering Application Based on Returnability and Handiness |
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| ZHAO Linfeng,CHEN Wuwei,QIN Minghui,QIN Weihua.Electric Power Steering Application Based on Returnability and Handiness[J].Chinese Journal of Mechanical Engineering,2009,45(6). |
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| Authors: | ZHAO Linfeng CHEN Wuwei QIN Minghui QIN Weihua |
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| Affiliation: | 1. School of Mechanical and Automotive Engineering;Hefei University of Technology;Hefei 230009;2. Guangzhou Zhiguang Electric Co. Ltd.;Guangzhou 510760 |
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| Abstract: | Based on establishing the mathematical model of electric power steering system (EPS),a method for estimating the state of steering wheel by the combination of the moment signal measured by steering wheel moment sensor and the estimated steering angle, then the fuzzy proportion derivative (PD) control strategy is applied for conventional power-assited or self-aligning control. The simulation results show the steering moment decreases apparently under in-situ and low speed condition, the returnability is impr... |
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| Keywords: | Electric power steering system Mathematical model Control strategy Vehicle test |
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