Analysis of downshift’s improvement to energy efficiency of an electric vehicle during regenerative braking

Li, Liang; Li, Xujian; Wang, Xiangyu; Song, Jian; He, Kai; Li, Chenfeng

doi:10.1016/j.apenergy.2016.05.042

Cited by 92 publications

(47 citation statements)

References 27 publications

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“…Energy storage systems (ESS), being multifaceted in their applications, form the foundation for technological advancement in RES and EV. In this field, several excellent discoveries and proposition have been made for the applications of batteries for RES output power stabilization, wireless RES power transfer, peak-shifting, electricity market pricing and scheduling, grid voltage and frequency regulations, increasing RES penetration with inertial contribution to the grid, peak clipping-valley filling due to RES integration in the main grid [1][2][3][4], and further commercialization of EVs with enhanced driving and acceleration range with increased performance of due to recuperation of regenerative braking [5][6][7]. Even though batteries can aptly perform in these applications, batteries possess certain inconvenient characteristics such as low power density, limited life cycle and comparatively slow response in terms of the requirements of the applications.…”

Section: Introductionmentioning

confidence: 99%

A Review on the Selected Applications of Battery-Supercapacitor Hybrid Energy Storage Systems for Microgrids

Khalid

2019

Energies

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This paper presents a comprehensive categorical review of the recent advances and past research development of the hybrid storage paradigm over the last two decades. The main intent of the study is to provide an application-focused survey where every category and sub-category herein is thoroughly and independently investigated. Implementation of energy storage systems is one of the most interestingly effective options for further progression in the field of alternative energy technology. Apart from a meticulous garnering of the energy resources regulated by the energy storage, the main concern is to optimize the characteristic integrity of the storage devices to achieve a practically techno-economic size and operation. In this paper, hybrid energy storage consisting of batteries and supercapacitors is studied. The fact that the characteristic of batteries is mostly complementary to that of supercapacitors, hybridizing these storage systems enhances their scope of application in various fields. Therefore, the objective of this paper is to present an inclusive review of these applications. Specifically, the application domain includes: (1) regulation of renewable energy sources, (2) contributions to grid regulation (voltage and frequency compensation, contribution to power system inertia), (3) energy storage enhancements (life cycle improvement, and size reduction), (4) regenerative braking in electric vehicles, (5) improvement in wireless power transfer technology. Further, this review also descriptively highlights the control strategies implemented in these domains of applications. The application-oriented review explicates the principle advantages with the hybridization of battery and supercapacitor energy storage systems that can be used as an insight for further development in the field of energy storage technology and its applications. Power Ratings (MW) 0-0.03 [12,13] 0-20 [12,13] 0-0.01 [12,13] 0.05-8 [12,13] 0.03-3 [12,13] 0-0.3 [12] 50 [13] Energy Density, Wh/L

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Section: Introductionmentioning

confidence: 99%

A Review on the Selected Applications of Battery-Supercapacitor Hybrid Energy Storage Systems for Microgrids

Khalid

2019

Energies

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“…Regenerative braking cooperation with ABS (Anti-lock braking system) and only regenerative braking anti-lock are studied [1], [2]. Friction braking and automatic transmission cooperate with regenerative braking as aimed optimum energy recovery [3]- [7]. Regenerative braking is controlled by the fuzzy logic controller [8]- [10].…”

Section: Introductionmentioning

confidence: 99%

Downhill Speed Control of In-Wheel Motor during Regenerative Braking

Bayır¹,

Soylu²

2017

ElAEE

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Recovering kinetic energy in an electric vehicle is important in order to use battery more effective and to extend the vehicle's maximum distance range. In this study, regenerative braking is simulated and implemented on a test bed for a lightweight electric vehicle on the three different downhill that are 3º, 4º and 5º slopes at 30km/h conditions. An in-wheel motor which is generally used in the light electric vehicle is used for the regenerative braking application. Speed of the in-wheel motor is controlled with PID controller during regenerative braking. The in-wheel motor charges batteries and the PID controller maintain speed of the in-wheel motor to reference speed in both simulation study and experimental study. Graphics and outcomes of the simulation and experiment are showed in the results and discussion section.

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“…Therefore, it is meaningful adjusting EM work point by downshifting to maximize the regenerative energy. In fact, downshifting during regenerative braking process can not only increase the energy conservation, but also improve the vehicle reacceleration performance [12,13].…”

Section: Possibilities Of Driving Control By Using the Coastingmentioning

confidence: 99%

Possibility of Increasing Vehicle Energy Balance Using Coasting

Mruzek¹,

Bárta²,

Labuda³

et al. 2018

Adv. Sci. Technol. Res. J.

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The paper deals with coasting as an option of using the vehicle kinetic energy. It highlights the need for changes in the legislation in conjunction with the use of new trends in the management of motor vehicles with regard to safety. The article describes the use of the vehicle is coasting as a part of the driving mode, which leads to the reduction in fuel consumption and in exhaust emission. This solution takes into account all the running resistances and creates a basis for designing appropriate control strategies. These options were analyzed with respect to various drive strategies and kinds of transport.

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Analysis of downshift’s improvement to energy efficiency of an electric vehicle during regenerative braking

Cited by 92 publications

References 27 publications

A Review on the Selected Applications of Battery-Supercapacitor Hybrid Energy Storage Systems for Microgrids

A Review on the Selected Applications of Battery-Supercapacitor Hybrid Energy Storage Systems for Microgrids

Downhill Speed Control of In-Wheel Motor during Regenerative Braking

Possibility of Increasing Vehicle Energy Balance Using Coasting

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