Low Power Electric Two-Wheelers for Hilly Region

Nama, Tako; Gogoi, Anup Kumar; Tripathy, Praveen

doi:10.1109/pedes.2018.8707619

Cited by 3 publications

(2 citation statements)

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“…The range of the EVs further goes down when operating on the hilly region roads. Due to the road gradient, the battery has to supply more power to overcome the tractive resistive force on an inclined road than on a plain road for a given distance to cover at the same speed [4], [5]. If we only consider the battery power consumption, i.e.…”

Section: Introductionmentioning

confidence: 99%

“…Comparing Figs. 1 (a) and (b), it is seen that the braking time required is longer while descending a hill, for such kind of braking; a high power density and a high energy density energy storage are required like Li-Ion [4]. The regenerative braking circuit design and storage device for the hilly road demands to be different from that used in urban plain roads, where it is used to bring the vehicle to a quick stop as shown in Figs.…”

Section: Introductionmentioning

confidence: 99%

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Design, Modeling and Hardware Implementation of Regenerative Braking for Electric Two-Wheelers for Hilly Roads

et al. 2022

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The electric vehicles which operate in hilly region gain potential energy while moving uphill. Some of this energy can be recuperated to charge the battery while the vehicle moves downhill by using regenerative braking. The speed of the electric vehicle while descending the slope of hilly roads is often low to ensure the safety of the passenger, hence requiring regenerative braking at low speed. Braking at low speed is quite challenging due to the low level of back electromotive force (EMF) during regenerative braking. This paper presents a modular regenerative braking circuit for electric scooters operating at low speeds. The proposed modular regenerative braking circuit's configuration, operation, and control scheme are explained in the paper. Here using the state-space averaging technique, the small-signal modeling of the braking circuit was done, and a Type-II current controller was designed to track the braking current reference. The proposed configuration also suggests fast switching between the motoring and regenerative modes by enabling or disabling the gate pulses to the inverter or DC/DC boost converter. This removes the need for a separate switch in the power circuit, hence increasing reliability and reducing cost. The operation of the proposed regenerative braking circuit, along with the overall motor drive-train of the vehicle, was simulated in MATLAB/Simulink. Its hardware implementation was conducted on a scaled-down laboratory test set-up. The simulation and experimental results verify the working of the proposed regenerative braking circuit and the effectiveness of the proposed control scheme.INDEX TERMS Modular regenerative braking, electric scooters, DC/DC converter, Type-II compensator, hilly roads.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%