ECAS车高调节控制仿真与试验研究
首发时间:2017-05-16
摘要:电控空气悬架能够根据车辆实际行驶工况和驾驶员操作要求对车身高度进行自行调节和控制,对提高车辆在行驶过程中的平顺性、操稳性以及燃油经济性都具有重要意义。针对车身高度调节过程中存在的"过充"、"过放"、振荡以及车身姿态不稳等现象,设计了基于神经网络PID的车身高度自适应控制器,并对控制器实际性能进行了仿真分析。随后基于D2P快速开发平台搭建ECAS车高调节控制系统整车台架试验,试验结果表明,其高度控制系统能够实现车身高度的有效调节,保证了ECAS控制性能。
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Simulation and test research of vehicle height control for ECAS
Abstract:The electronically controlled air suspension can adjust the height of vehicle sprung mass by controlling the air spring length based on the driver's intent and driving conditions, which is of great significance to improve ride comfort, operation stability and fuel economy of vehicle. For "over-charge"、 "over-discharge"、 "oscillation" and "unstability of body posture" occurred in the process of body height adjustment, body height adaptive controller was designed based on neural network PID, and the control performance was verified by simulations. Finally, the vehicle bench test of body height adjustment for ECAS was competed via D2P rapid development platform, and the test results show that the height control system can implement effectively body height regulation, thus the control performance of ECAS is guaranteed.
Keywords: electronically controlled air suspension vehicle body height adjustment neural network;simulation;test
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No.4733595119886714****
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