汽车发动机主动悬置振动控制策略研究
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摘要
为解决发动机振动和路面激励引起的整车振动,提出了一种包含压电陶瓷主动悬置的双环控制。外环控制器主要用来控制发动机的垂直、俯仰与侧倾运动,从而稳定发动机的姿态;内环控制是采用4个独立的控制器分别控制每个压电悬置产生主动控制力,从而抑制路面不平度对车身的干扰。通过逻辑控制器实现内外环的有效连接。仿真结果表明:相比于传统模糊控制和被动悬置系统,主动悬置的双环控制方法能抑制发动机振动和车身振动,提高汽车行驶平顺性。
In order to solve the vehicle vibration caused by engine vibration and road surface excitation,a double ring control with active suspension of piezoelectric ceramics is proposed. v The outer ring controller is mainly used to control the engine of vertical,pitch and roll motion to made the engine's posture stable; And the inner control is controlled by four independent controller respectively each piezoelectric active control suspension,which can inhibit the road surface roughness on the body. And the inner and outer ring are effectively connected by logic controller. The simulation results show that the double ring control can reduce the vibration of the engine and improve the ride comfort of the vehicle compared with the traditional fuzzy control and passive mount.
In order to solve the vehicle vibration caused by engine vibration and road surface excitation,a double ring control with active suspension of piezoelectric ceramics is proposed. v The outer ring controller is mainly used to control the engine of vertical,pitch and roll motion to made the engine's posture stable; And the inner control is controlled by four independent controller respectively each piezoelectric active control suspension,which can inhibit the road surface roughness on the body. And the inner and outer ring are effectively connected by logic controller. The simulation results show that the double ring control can reduce the vibration of the engine and improve the ride comfort of the vehicle compared with the traditional fuzzy control and passive mount.
引文
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[2]董加加,雷刚,赖立,等.汽车动力总成悬置设计优化软件开发[J].重庆理工大学学报(自然科学),2015,29(8):18-22.
[3]谢柯,曾发林,李建康,等.商用车驾驶室悬置系统优化[J].重庆理工大学学报(自然科学),2015(3):15-20.
[4]丁世稳.发动机主动悬置控制方法的研究[D].长春:吉林大学,2009.
[5]陶帅,白鸿柏,何建设,等.压电作动器位移输出特性分析[J].压电与声光,2010,32(5):807-810.
[6]李志强.V型双振子螺杆式直线压电作动器研究[D].太原科技大学,2015.
[7]邱炜.基于压电作动器的空间单轴主动隔振研究[D].杭州:浙江大学,2016.
[8]张超.车辆动力总成悬置系统匹配优化仿真研究[D].重庆:重庆交通大学,2011.
[9]陈克,李晓政,周霜霜.动力总成悬置系统优化与减振分析[J].沈阳工业大学学报,2016,38(1):57-62.
[10]杜宪.某越野车动力总成悬置系统设计及优化研究[D].北京:北京理工大学,2015.
[11]杨蔚华,李友荣.新型轮边驱动电动车平顺性仿真分析[J].计算机仿真,2015,42(2):146-151.
[12]OHAD A R I,MAGHSOODI G.Simulation of Engine Vibration on Nonlinear Hydraulic Engine Mounts[J].Journal of Vibration and Acoustics,2007,129(8):417-424.
[13]HASSISON H C.Engine Installation[J].Automobile Engineering,2009,10:46-50.
[14]张自伟,郑玲.基于磁流变悬置的整车建模振动控制的研究[J].汽车工程,2014,36(3):193-197.
[15]王峰.汽车动力总成悬置系统振动分析及优化设计[D].上海:上海交通大学,2008.