【作者】 王磊； 张慧慧； 朱思洪；

【Author】 WANG Lei, ZHANG Hui-hui, ZHU Si-hong (College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 10022 ,China; Agricultural Engineering College, Nanjing Agricultural University, Nanjing 210031, China)

【机构】 北京工业大学机械工程与应用电子技术学院； 南京农业大学工程学院；

【摘要】 针对汽车振动控制系统的复杂非线性,本文建立了空气悬架两自由度振动控制模型,分析了空气弹簧刚度调节原理和控制特性,研究了空气弹簧刚度可调的电子控制单元。通过单频激振实验, 验证了此空气弹簧电子控制单元可根据检测到的垂直加速度信号,及时改变空气弹簧内的空气压力,有效调节空气弹簧刚度,改善了汽车行驶平顺性。更多还原

【Abstract】 With complex nonlinear of vehicle control system, two-degree-of-freedom vibration model of air suspension is built and stiffness adjustment theory and control characteristic of air suspension are discussed in the paper. On the basis, electronic control unit for air spring is developed. Single frequency excitation experiments show that the control unit lor air spring can efficiently alter stiffness parameter according to connected acceleration signal in vertical vibration and the driving smoothness is improved.更多还原