CONSTRUCTION OF SELF-TUNING SUSPENS10N SYSTEMS OF VEHICLES USING FUZZY THEORY

利用模糊理论构建车辆自调节悬架系统

• 批准号: 09650271
• 负责人: YOSHIMURA Toshio
• 金额: $ 2.11万
• 依托单位: THE UNIVERSITY OF TOKUSHIMA
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09650271/
• 关键词: ACTIVE SUSPENSION SYSTEM; SEMI-ACTIVE SUSPENSION; FUZZY THEORY; LARGE-SIZED BUS; COMPACT PASSENGER CAR; RIDE QUALITY; DYNAMIC ABSORBER; SIMULATION; シュミレーシュン

This investigation presents the construction of self-tuning active and semi-active suspension systems of vehicles using fuzzy theory. The construction is classified into active syspension systems for large-sized buses, and semi-active suspension systems for compact passenger cars. It is carried out by the simulation study using personal computers, and its effectiveness is shown by the field testing and the experiment. The active suspension system is derived by choosing the fuzzy control rules and the membership functions for the input and output variables where the vertical and rotary accelerations and velocities of the vehicle body are denoted as the input variables. The defuzzified value of the output variable is obtained by using the product-sum-gravity method. A self-tuning suspension system, which can adaptively tune the control structure according to the variation of the road input, is constructed where the membership function for the output variable is changed by the measurement … More of the input variable. Two kinds of approaches to improve the suspension performance is proposed. The first is the construction of preview control obtained by measuring the road input advanced from the front wheel. The second is the construction of dynamic absorbers fitting to the front and rear axes. The dynamic absorbers reduce the vibration with the frequencies generated by the Lime difference between the front and rear wheels. While, the semi-active suspension system is derived by choosing the fuzzy control rules where the suspension stroke and the time increment are denoted as the input variables, and the damping force is done as the output one. AS the selection of the damping force needs about 10 ms. at least and it leads the performance degradation, the fuzzy control rules are constructed by considering the time delay. The effectiveness of the semi-active suspension is shown by the field testing, and the pneumatic active suspension system is experimentally obtained by a quarter car model. Less

本研究介绍了使用模糊理论构建车辆自调节主动和半主动悬架系统。结构分为大型客车的主动悬架系统和紧凑型客车的半主动悬架系统。利用个人计算机进行模拟研究，并通过现场测试和实验证明了其有效性。通过选择模糊控制规则以及输入和输出变量的隶属函数来导出主动悬架系统，其中车身的垂直和旋转加速度和速度被表示为输入变量。输出变量的去模糊值是通过乘积和重力方法获得的。构建了一种自调节悬架系统，该系统可以根据道路输入的变化自适应地调整控制结构，其中输出变量的隶属函数通过输入变量的测量来改变。提出了两种提高悬架性能的方法。第一个是通过测量前轮提前的道路输入来构建预览控制。第二个是安装在前轴和后轴上的动态减震器的结构。动态减震器可减少前轮和后轮之间石灰差产生的频率的振动。同时，选择模糊控制规则，以悬架行程和时间增量为输入变量，以阻尼力为输出变量，推导出半主动悬架系统。 AS阻尼力的选择大约需要10ms。至少会导致性能下降，因此模糊控制规则是通过考虑时间延迟来构建的。现场试验验证了半主动悬架的有效性，并通过四分之一车模型实验获得了气动主动悬架系统。较少的

项目成果

T.Yoshimura, A.Nakaminami and J.Hino: "A Semi-active suspension with dynamic absorbers of ground vehicles using fuzzy reasoning" International Journal of Vehicle Design. Vol.18, No.1. 19-34 (1997)

T.Yoshimura、A.Nakaminami 和 J.Hino：“使用模糊推理的地面车辆动态减震器半主动悬架”《国际车辆设计杂志》。

Toshio Yoshimura: "A semi-active suspension of passenger cars using fuzzy reasoning and the field testing" International Journal of Vehicle Design. Vol.19,No.2. 150-166 (1998)

Toshio Yoshimura：“使用模糊推理和现场测试的乘用车半主动悬架”《国际车辆设计杂志》。

T.Yoshimura, Y.Okamoto, A.Kurimoto, T.Morimoto S.Chuanxin and H.Tada: "Pneumatic active suspension of a quarter car model using the fuzzy logic control" Proc.5th Intern.Conference on Control, Automation, Robotics and Vision, Songapore. Dec.9-11. (1998)

T.Yoshimura、Y.Okamoto、A.Kurimoto、T.Morimoto S.Chuanxin 和 H.Tada：“使用模糊逻辑控制的四分之一汽车模型的气动主动悬架”Proc.5th Intern.Conference on Control, Automation, Robotics

T.Yoshimura: "A semi-active suspension of passenger cars using fuzzy reasoning and the field testing" International Journal of Vehicle Design. Vol.19, No.2. 15-166 (1998)

T.Yoshimura：“使用模糊推理和现场测试的乘用车半主动悬架”《国际车辆设计杂志》。

K.Nakaminami, T.Yoshimura and J.Hino: "Active suspension system of passenger cars using fuzzy reasoning (Construction and comparison of active controls)" JSME Chuugoku-Sikoku Branch 35th Conference. No.975-1. 239-240 (1997)

K.Nakaminami、T.Yoshimura 和 J.Hino：“使用模糊推理的乘用车主动悬架系统（主动控制的构造和比较）”JSME 中国四国分会第 35 次会议。