Study of Regenerative Braking System and Brake Force using Pulse Width Module

Chueprasert, Warunchit; Phaoharuhansa, Danai

doi:10.1051/matecconf/202030601004

Cited by 2 publications

(1 citation statement)

References 14 publications

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“…Kumar, C.N. et al [9] proposed a new synergistic control of regenerative and friction braking together in hybrid EVs, which makes the braking force distribution curves of the front and rear wheels close to the ideal distribution curve and facilitates stable braking.CH et al [10] proposed a pulse width module (PWM) to control the regenerative braking cycle frequency and regenerative braking control strategy. Improve the efficiency of regenerative braking recovery.…”

Section: Introductionmentioning

confidence: 99%

Research on an Energy Recovery Strategy for Fuel Cell Commercial Vehicles Based on Slope Estimation

Zheng,

Chen,

Wang

2024

Applied Sciences

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Road slope is an essential parameter in the study of vehicle driving processes. In future traffic development, constructing road segments with slopes is indispensable. Furthermore, road slope is a fundamental parameter for realizing energy recovery during braking. Hence, research on road slope estimation is extremely crucial. This article proposes a combination of adaptive filtering and strong tracking filter factors for road slope estimation, followed by establishing case settings for verification. It was found that the proposed slope estimation algorithm has a high degree of accuracy in estimating the slope angle, with a mean absolute error (MAE) and a root mean square error (RMSE) of 0.0254 and 0.0359, respectively, at fixed slopes, and a MAE and a RMSE of 0.2799 and 0.3710, respectively, at varying slopes. By combining the slope angle with a braking force distribution optimization algorithm, an optimized braking distribution coefficient is obtained. In the Cruise2019 software, slope angles of 0° and 5° are set and combined with the braking force distribution strategy built in Matlab2021/Simulink for verification under China Heavy-duty Commercial Vehicle Test Cycle (CHTC-HT) and Worldwide Transient Vehicle Cycle (C-WTVC) conditions. The recovered energy increased by 7.24% and 4.99%, respectively, under CHTC-HT conditions, and by 6.42% and 1.73%, respectively, under C-WTVC.

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Section: Introductionmentioning

confidence: 99%

Research on an Energy Recovery Strategy for Fuel Cell Commercial Vehicles Based on Slope Estimation

Zheng,

Chen,

Wang

2024

Applied Sciences

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Regenerative Braking Control Strategy with Real-Time Wavelet Transform for Composite Energy Buses

Zhou

Zheng

2022

Machines

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In order to meet the safety requirements of automobile braking, to improve the braking energy recovery rate of pure electric buses and increase their driving range, the maximum regenerative braking force that the motor can provide is used to determine the front and rear wheel friction braking force distribution curve. A parallel regenerative braking control strategy, A, is proposed to make full use of the motor performance. Aiming at the problems of low power density and short cycle life with a single power battery, a composite energy system composed of power batteries and supercapacitors is designed, and an alternative energy control strategy, D, using real-time wavelet transform control is proposed. The required power is decomposed into high-frequency components and low-frequency components by using the wavelet transform control, in which the high-frequency power is borne by the supercapacitor to avoid impact on the power battery. The simulation model was created using MATLAB/Simulink software, and the simulation was carried out under combined cycle conditions to verify the effectiveness of the control strategy. The simulation results showed that compared with the original vehicle control strategy, adopting the A regenerative braking control strategy can reduce the battery SOC drop by 5.15%, increase the relative increase by 47.9%, and improve the braking energy recovery rate. Compared with the traditional logic threshold regenerative braking control strategy, AC, the AD control strategy can effectively reduce the impact of the peak current and high-frequency demands of the power battery on the battery. The maximum output current of the battery was reduced by 39.5%. The decrease in battery SOC decreased by 0.69%, and the relative increase increased by 12.43%. The driving range and braking performance of the vehicle have thus been effectively improved.

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Study of Regenerative Braking System and Brake Force using Pulse Width Module

Cited by 2 publications

References 14 publications

Research on an Energy Recovery Strategy for Fuel Cell Commercial Vehicles Based on Slope Estimation

Research on an Energy Recovery Strategy for Fuel Cell Commercial Vehicles Based on Slope Estimation

Regenerative Braking Control Strategy with Real-Time Wavelet Transform for Composite Energy Buses

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