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一种用于电液防抱死制动系统的显式非线性模型预测控制器设计
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重庆市十三五规划课题(2018GX429);重庆市永川区2018年公益类科技计划项目(Ycstc,2018cc0802 )


Design of an Explicit Nonlinear Model Predictive Controller for Electrohydraulic Antilock Braking System
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    摘要:

    为实现对车辆制动过程进行快速且稳定的控制,设计一种用于电液防抱死制动系统的显式非线性模型预测控制器。通过对电液防抱死制动系统进行分析,明确电液防抱死制动系统的工作过程。在考虑系统参数的基础上,设计显式非线性模型预测控制器。将显式非线性模型预测控制器融入到电液防抱死制动控制系统中,以计算调节扭矩。同时利用状态预测器和缓冲器补偿电液防抱死制动系统的死区时间,从而提高制动过程的效率及稳定性,解决电液防抱死制动系统的非线性最优控制问题。实验结果表明:与逻辑门限控制方法相比,该显式非线性模型预测控制器对车辆进行制动控制时,具有更好的实时性和稳定性。

    Abstract:

    In order to achieve fast and stable control of vehicle braking process,an explicit nonlinear model predictive controller for electrohydraulic antilock braking system was designed.Through the analysis of the electrohydraulic antilock braking system,its working process was clarified.On the basis of considering the system parameters,an explicit nonlinear model prediction controller was designed.The controller was integrated into the electrohydraulic antilock braking control system to calculate the adjusting torque.At the same time,the state predictor and buffer were used to compensate the dead time of the electrohydraulic antilock braking system,so as to improve the efficiency and stability of the braking process and solve the nonlinear optimal control problem of the electrohydraulic antilock braking system.The experimental results show that compared with the logic threshold control method,the explicit nonlinear model predictive controller has better realtime performance and better stability for vehicle braking control.

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李超,宁萍.一种用于电液防抱死制动系统的显式非线性模型预测控制器设计[J].机床与液压,2021,49(4):116-119.
LI Chao, NING Ping. Design of an Explicit Nonlinear Model Predictive Controller for Electrohydraulic Antilock Braking System[J]. Machine Tool & Hydraulics,2021,49(4):116-119

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  • 在线发布日期: 2022-03-10
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