Power distribution in multi-motor (AWD) powertrain of electric vehicle

Kopczyński, Artur; Roszczyk, P.

doi:10.1051/e3sconf/201910000038

Cited by 1 publication

(1 citation statement)

References 10 publications

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“…During this research it was observed that in the case of braking with the force of 150 N applied to the brake pedal, the amount of recovered energy is approximately 40% higher than when braking with the force of 400 N. According to the research carried out by the authors of papers [16,33,38], properly adjusted force on the brake pedal, the depth and time of pressing the brake pedal during braking can affect the comfort of braking and the efficiency of regeneration. This is obvious, because in most electric vehicle braking systems, the first system to be activated is the electrical system which converts kinetic energy into electric energy using the electric machine [15]. The amount of recovered energy is limited by the current-voltage characteristic of the electric machine and the battery.…”

Section: Conclusion and Discussionmentioning

confidence: 99%

The analysis of energy recovered by an electric vehicle during selected braking manoeuvres

Szumska

Skuza

Jurecki

2023

The Archives of Automotive Engineering – Archiwum Motoryzacji

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Electrical vehicles have the ability to partially recover some kinetic energy during braking. Kinetic energy is transformed into electric energy, which is fed to the battery by the control system and stored there for further use. The aim of this paper was to analyse the levels of energy recovered by an electric vehicle during braking at various speeds and with different braking intensities. The first phase of testing consisted of vehicle braking tests in real-life conditions. The registered speed profiles were then used as input data for the simulation software. The authors have also analysed the effect of the state of charge of the battery and of the vehicle’s load on the amount of energy recovered during braking. The performed simulation tests demonstrated that the level of recovered energy is significantly affected by the initial braking speed and by the force of pressure applied to the brake pedal. The amount of recovered energy is less affected by the state of charge (SOC) of the battery and by the vehicle’s load. Energy regeneration during braking is currently an important research topic. The efficiency of an electric vehicle depends on the range, which can be extended thanks to the additional energy recovered during braking maneuvers. The presented preliminary simulation results are intended to assess the level of energy recovery in electric vehicles. The authors are aware that a full, comprehensive analysis requires additional research using electric vehicles that will verify the results presented in the paper.

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