Controller of new automatic pressure regulating valve for electro-pneumatic braking system of commercial vehicles and its experimental study

Zhang, Lisha; Bao, Hanwei; Deng, Fangfang; Li, Gangyan

doi:10.1109/cvci54083.2021.9661183

Cited by 3 publications

(1 citation statement)

References 6 publications

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“…Peng Liu et al [13] optimized the dynamic response speed of a high-speed solenoid valve based on the response surface method and genetic algorithm, which provided theoretical guidance for the design and performance optimization of the high-speed solenoid valve. Lisha Zhang et al [14] designed a feedforward fuzzy PID controller by using LabVIEW software. The pressure response characteristics of APRV under PID control, feedforward PID control, and feedforward fuzzy PID control were obtained through experiments.…”

Section: Introductionmentioning

confidence: 99%

Study on the Pressure Regulation Method of New Automatic Pressure Regulating Valve in the Electronically Controlled Pneumatic Brake Systems in Commercial Vehicles

Wei

Wang

et al. 2022

Sensors

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In order to adapt the development of vehicle driving automation technology for driving conditions under different levels of automation and based on the independently invented LF automatic pressure regulating valve (LF-APRV) for electronically controlled pneumatic brake systems (ECPBS), the dynamic PWM coupling pressure regulation method is proposed. This method realizes pressure regulation by adjusting the duty cycle of the control signal of the LF-APRV at different stages in the pressure regulation cycle. A co-simulation model was established to verify the feasibility of the method, and a test system was built to verify the correctness of the co-simulation model. Through the test, the pressure regulation performance of dynamic PWM coupling pressure regulation method and conventional on/off pressure regulation method was compared. The results show that the new method can improve the stability of pressure regulation, although the response time increases; under the new method, the overshoot of the pressure rising from 0 to 0.5 MPa was reduced by 69%, and the overshoot of the pressure decreasing from 0.5 MPa to 0.2 MPa was basically 0. Finally, tests and simulations showed that the dynamic PWM coupling pressure regulation method can meet the continuous graded braking requirements of vehicles, and the pressure response has good tracking performance on the target pressure.

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Section: Introductionmentioning

confidence: 99%