Research of pressure limiting valve in the ESP under control of high-frequency PWM

机译：高频PWM控制下电除尘器限压阀的研究

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In the ESP (Electronic Stability Program), the pressure limiting valve is used to control the max pressure in the brake system. Although the traditional relief valve can meet this requirement, the max pressure that can control is a certain value which can''t change due to the circumstance of the vehicle. In this paper, the high speed on/off valve under control of high-frequency PWM (Pulse Width Modulation) is used to control the max pressure in the brake system by changing the duty cycle of PWM. Nevertheless, this paper establish a high-speed on/off valve simulation model which is under control of PWM of 2k ȼ 4k Hz modulation frequency in MATLAB-Simulink, and analysis the function of pressure limiting valve in different duty cycle of the control of PWM. Through this research, the application of the high-speed on/off valve is extended, and it is helpful to control the brake pressure precisely.

机译：在ESP（电子稳定程序）中，限压阀用于控制制动系统中的最大压力。尽管传统的溢流阀可以满足这一要求，但是可以控制的最大压力是一个一定的值，该值不会因车辆的情况而改变。在本文中，在高频PWM（脉冲宽度调制）控制下的高速开关阀用于通过改变PWM的占空比来控制制动系统中的最大压力。尽管如此，本文还是在MATLAB-Simulink中建立了以2kȼ4k Hz调制频率的PWM控制的高速开关阀仿真模型，并分析了限压阀在PWM控制的不同占空比下的功能。。通过这项研究，扩展了高速开关阀的应用范围，有助于精确控制制动压力。

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《2011 International Conference on Electric Information and Control Engineering》|2011年|p.5225-5229|共5页
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Wang Weiwei; Song Jian; Yu Liangyao; Cheng Yi; Xu Zhuhui;
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中图分类自动化技术及设备;
关键词
Electronic Stability Program; duty cycle; high-speed on/off valve; pressure limiting valve; the control of high-frequency Pulse Width Modulation;

机译：电子稳定程序;占空比;高速开关阀;限压阀;高频脉冲宽度调制的控制;

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2. Research on the High-speed On/off Valve with High Pressure and Large Flow Rate Based on Phase Shift PWM Control [J] . XIAOFEI LU, BINQU YAN, SHUMEI CHEN, WSEAS transactions on systems and control . 2016,第Null期

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4. Theoretical analysis of a pressure setting and control system with PWM direction control valve [C] . M Avram, D Duminica, L A Cartal International Conference on Advanced Conceps in Mechanical Engineering . 2016

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Research of pressure limiting valve in the ESP under control of high-frequency PWM

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