Design of Experimental Regenerative Braking Simulation System and Experimental Research

Ping Xu, Zongzheng Ma, Yuelong Yuan

Abstract


To address the limitations of real-vehicle regenerative braking systems, such as high experimental costs, difficult data visualization, and inadequate support for experimental education, this study developed a parallel hydraulic regenerative braking simulation test bench and conducted systematic experimental research. The test bench integrates three core subsystems: an inertia simulation system, a kinetic energy recovery system, and a control system.  Controlled-variable experiments were carried out to analyze the effects of two key parameters, initial flywheel rotational speed and hydraulic pump displacement, on system performance, including braking distance, energy recovery efficiency, and energy reuse efficiency. Experimental results showed that: (1) Braking distance increased with initial speed regardless of pump displacement; (2) Energy recovery efficiency first increased and then decreased with initial speed, reaching a maximum of 58.9% at 35 km/h, and was positively correlated with pump displacement; (3) Energy reuse efficiency peaked at 35% when the flywheel initial speed was 34.9 km/h and increased with pump displacement, reaching 22% at 25 mL/r).  This research offers experimental support for parameter matching and performance improvement of hydraulic regenerative braking systems.

Keywords


Energy recovery efficiency; Braking distance; Regenerative braking system; Simulation test bench; STM32 microcontroller

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References


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DOI: https://doi.org/10.64289/iej.25.0412.2974222