A Pneumatic Control Method for Commercial Vehicle Electronic Brake System Based on EPV Module

Zhang, Lanjiang; Yan, Yang; Zhu, Qi; Zhao, Gang; Feng, Deying; Wu, Jian

doi:10.3390/act11110316

Cited by 5 publications

(7 citation statements)

References 21 publications

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“…On the other hand, both the incompressible flow model 1 and the ISO model 2 are better when the tank is being charged (Figure 9b,d). It is, therefore, reasonable, to prefer the one-constant modelling Equation (25) instead of the two-constant ISO Equation (21).…”

Section: Comparison With Experimental Resultsmentioning

confidence: 99%

“…For instance, in 1955, Druett obtained experimental curves for divergent conic-shaped orifices [12]. However, a somewhat common practice is to assume L = 0.528, corresponding to the critical pressure ratio, b, for γ = 1.4 (see, for example, [2,[13][14][15][16][17][18][19][20][21]).…”

Section: 𝑚 𝐾mentioning

confidence: 99%

“…The ISO standard uses the elliptical approximation, Ψ , given by Equation ( 15), as can be seen in second radicand of the first equation in (21). In fact, the first equation in ( 21) can be obtained by first substituting Ψ with Ψ , in Equation ( 17), as follows .…”

Section: The Iso 6358 Equationsmentioning

confidence: 99%

“…. N), as proposed in [13] for the ISO Equation (21). We do not favor this approach, given that, virtually, any model in Table 1 can be adjusted to fit experimental results by correctly choosing the new constants of the coefficient C k .…”

Section: Equation Label Equationmentioning

confidence: 99%

See 3 more Smart Citations

Modelling Air Flow through Pneumatic Valves: A Brief Review with an Experimental Case Study

Koury Costa

2023

Eng

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Compressible flow models are commonly used for describing air flow through pneumatic valves. Because of the difficulties in predicting viscous losses, these models ultimately rely on experimental determination of coefficients. Different equations have been proposed for different fluid speeds, having the sonic fluid velocity as a reference mark. However, one might question whether a much simpler approach, where the fluid is considered as incompressible, would still give good results within the typical range of industrial applications. Moreover, practically all models presuppose that the valve output pressure decreases in time, as in a discharge process. This paper reviews some representative one-dimensional compressible flow models and discusses the appropriateness of using equations based solely on discharging flows. Two experimental circuits, where an air reservoir is pressurized and, subsequently, decompressed, are used for comparison between different flow models. It is shown that a simpler set of equations still produces acceptable results for practical pneumatic applications.

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Section: Comparison With Experimental Resultsmentioning

confidence: 99%

Section: 𝑚 𝐾mentioning

confidence: 99%

Section: The Iso 6358 Equationsmentioning

confidence: 99%

Section: Equation Label Equationmentioning

confidence: 99%

See 2 more Smart Citations

Modelling Air Flow through Pneumatic Valves: A Brief Review with an Experimental Case Study

Koury Costa

2023

Eng

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“…The traditional commercial vehicle electronic braking system has problems such as slow pressure response, large dynamic error, and unsatisfactory braking effect during the braking process. Zhang et al [5] designed a new EBS system, which integrates the control of each pneumatic valve. Wu et al [6] proposed a human-machine collaborative steering torque control method for intelligent vehicles.…”

Section: Introductionmentioning

confidence: 99%

A Modeling and Control Algorithm for a Commercial Vehicle Electronic Brake System Based on Vertical Load Estimation

Zheng,

Xin,

et al. 2023

Actuators

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In the electronic brake system (EBS) of commercial vehicles, due to the compressibility of gas, it is difficult to achieve accurate control in the pneumatic pipeline. To address this issue, a vertical load estimator based on unscented particle filtering (UPF) was designed, which can estimate vertical load during the running of the vehicle. Then, the EBS dynamics model was established based on software, including a brake signal sensor, single-channel bridge control module, ABS solenoid valve, and dual-channel bridge control module. Finally, based on the characteristics of the EBS valve, the control algorithm of the valve was studied, and the algorithm was tested using a hardware-in-the-loop experiment. The experiment results showed that the designed algorithm could improve braking performance.

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Efficiency enhancement of bicycle anti-lock braking systems (ABS): Design and optimization of solenoid actuators through finite element analysis and performance simulation

Cheng,

Saputra,

Shi

et al. 2024

Advances in Mechanical Engineering

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The rising popularity of cycling underscores the need for enhanced safety, particularly under challenging braking conditions. This study introduces a novel high-power switch valve designed explicitly for Bicycle Hydraulic Disc Brakes (BHDBs), incorporating Hydraulic Anti-lock Braking Systems (ABS). Comprehensive Finite Element Analysis (FEA) modeling and subsequent optimization of an existing solenoid valve’s internal geometry were performed through 2D and 3D simulations to evaluate magnetic flux. The improved design achieved a maximum output force of 280 N with a linear stroke of approximately 3.5 mm. Notably, the enhanced system exhibited a 28% reduction in required current, from 5.0 to 3.6 A, a result validated through LabVIEW-equipped custom tests, which stress the credibility of the research. This study underscores significant advancements in high-power switch valves for BHDBs, promising enhanced braking efficiency and safety in high-performance, battery-powered bicycles. These findings not only promise enhanced safety for cyclists but also suggest the potential for broader application in energy-efficient and sustainable bicycle ABS technology, contributing to improved cyclist safety without compromising the environmental and health benefits of cycling. The potential impact of this research extends beyond the immediate context, offering insights that could be applied to other areas of technology and safety.

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A Pneumatic Control Method for Commercial Vehicle Electronic Brake System Based on EPV Module

Cited by 5 publications

References 21 publications

Modelling Air Flow through Pneumatic Valves: A Brief Review with an Experimental Case Study

Modelling Air Flow through Pneumatic Valves: A Brief Review with an Experimental Case Study

A Modeling and Control Algorithm for a Commercial Vehicle Electronic Brake System Based on Vertical Load Estimation

Efficiency enhancement of bicycle anti-lock braking systems (ABS): Design and optimization of solenoid actuators through finite element analysis and performance simulation

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