| 引用本文: | 罗霜,舒红宇,姚泽杰,陈齐平.微型汽车操纵稳定性的人-车动力学耦合效应[J].哈尔滨工业大学学报,2018,50(1):146.DOI:10.11918/j.issn.0367-6234.201703152 |
| LUO Shuang,SHU Hongyu,YAO Zejie,CHEN Qiping.Effects of human-vehicle dynamics interaction on the handling stability of miniature automobile[J].Journal of Harbin Institute of Technology,2018,50(1):146.DOI:10.11918/j.issn.0367-6234.201703152 |
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| 微型汽车操纵稳定性的人-车动力学耦合效应 |
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罗霜1,舒红宇1,2,姚泽杰1,陈齐平3
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(1.机械传动国家重点实验室(重庆大学),重庆400044;2. 汽车噪声振动和安全技术国家重点实验室 (中国汽车工程研究院股份有限公司),重庆 400039;3. 华东交通大学 机电工程学院,南昌 330013)
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| 摘要: |
| 为研究驾驶人体与汽车之间的动力学耦合作用对微型汽车操纵稳定性的影响，将驾驶员模型通过弹簧-阻尼单元与汽车座椅相连，建立了基于人-车动力学耦合的6自由度操纵动力学模型; 在参数识别获取人-椅界面的刚度-阻尼参数的基础上，应用数值解法，通过Matlab/Simulink对该动力学模型进行了仿真计算，分析了人-车动力学耦合作用对不同整车质量微型汽车阶跃转向的瞬态和稳态影响.结果表明：人-车动力学耦合明显影响了微型汽车侧倾响应，增大了其稳态值、峰值以及超调量，并且汽车结构尺度和整车质量越接近驾驶人体，影响越明显; 而对横摆角速度影响较小，主要表现在增加了微型汽车的不足转向趋势，使瞬态响应波动增大.
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| 关键词: 微型汽车 驾驶人体 动力学 操纵稳定性 参数识别 |
| DOI：10.11918/j.issn.0367-6234.201703152 |
| 分类号:U461.6 |
| 文献标识码:A |
| 基金项目:国家自然科学基金(51565011)；汽车噪声振动和安全技术国家重点实验室开放基金(NVHSKL-201601) |
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| Effects of human-vehicle dynamics interaction on the handling stability of miniature automobile |
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LUO Shuang1,SHU Hongyu1,2,YAO Zejie1,CHEN Qiping3
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(1. State Key Laboratory of Mechanical Transmission (Chongqing University), Chongqing 400044, China; 2. State Key Laboratory of Vehicle NVH and Safety Technology (China Automotive Engineering Research Institute Co., Ltd.), Chongqing 400039, China; 3. School of Mechatronics Engineering, East China Jiaotong University, Nanchang 330013,China)
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| Abstract: |
| To investigate the influence of dynamics interaction between the driver body and miniature automobile, the driver model was connected to the miniature automobile with spring-damping elements. A handling stability dynamics model was constructed for the driver-vehicle system with 6 degree of freedom (DOF). Based on the parameter identification for stiffness and damping coefficients at human-seat interface, the numerical method was used to solve the handling stability dynamics model by Matlab/Simulink. The influences of human-vehicle dynamics interaction on the stable and transient responses of step steering were analyzed for the miniature automobile with different curb weight. Results show that the human-vehicle dynamics interaction affects the roll response obviously, and increases the steady stable values, peak values and overshoot. With the curb weight and size more and more close to the driver body, the influences will be more significant. The human-vehicle dynamics interaction has a little effect on the yaw rate, increases the tendency of understeering and enlarges the fluctuation of the yaw rate curve.
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| Key words: miniature automobile driver body dynamics handling stability parameter identification |
