Experimental data analysis on total driving performance of series chopper based ev power train

Kawamura, Atsuo; Guidi, Giuseppe; Tsutsuki, Sota; Watanabe, Yuki; Tsuruta, Yukinori; Motoi, Naoki

doi:10.1109/iecon.2011.6119504

Cited by 15 publications

(10 citation statements)

References 8 publications

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“…In the past research [8], authors were experimentally compared between with and without the chopper by the use of the actual EV However, the condition of the experiment has some problems. For example, the cost of the experiment and the scale of the experimental facility are very large.…”

Section: Atsuo Kawamuramentioning

confidence: 97%

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Large driving range increase of series chopper based power train using motor test bench

Hosoyamada

Takeda

Motoi

et al. 2014

2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE ASIA)

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Authors proposed the series chopper based power train aimed for the extension of the driving range. In previous paper II], under the condition of the constant DC-supply voltage, effectiveness of the optimization of the profile of the chopper output voltage was shown. However, the output voltage of the battery used in the actual EV varies depending on the state of charge (SOC). Because of this difference, the precise comparison of the power train was not performed. In this paper, by emulating the battery including the internal resistance and output voltage dependency on SOC, the driving range is compared in the motor test bench. It is shown that the chopper output voltage adjustment depending on the rotor speed and the weight of the chopper has large effect on the driving range. In comparison to non-chopper power train, the driving range of the series chopper power train increases by 2.1 %. In addition, by decreasing the weight of the chopper by a half and zero, the driving range further extends by 1.4% and 3.0%.

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Section: Atsuo Kawamuramentioning

confidence: 97%

“…And, the specification of each equipment is shown The motor test bench is modeled based on EV "KANA" as shown in Fig. 7 [8]. The EV is composed of the battery, the chopper, the inverter, and the motor.…”

Section: Motor Test Bench [7]mentioning

confidence: 99%

Large driving range increase of series chopper based power train using motor test bench

Hosoyamada

Takeda

Motoi

et al. 2014

2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE ASIA)

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“…In addition, the prototype electric vehicle has been developed for EV performance evaluation and its appearance is shown in Fig. 1, which is called KAST-EV [13], [14]. It will be verified by two kinds of experimental analysis such as the motor test bench in the laboratory and the chassis dynamo in the driving performance evaluation facility that the proposed EV power train with SAZZ chopper and Quasi-PAM control scheme is better in the total driving performance evaluations.…”

Section: Introductionmentioning

confidence: 99%

Driving Performance Experimental Analysis of Series Chopper Based EV Power Train

Kawamura¹,

Guidi²,

Watanabe

et al. 2012

Journal of Power Electronics

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In this paper, the series chopper based power train for electric vehicle is proposed for aiming the increase of one battery charge driving distance. Both the motor test bench based experiments and the chassis dynamo based experiments are tested and then analyzed for EV driving performance that the proposed power train with SAZZ chopper and Quasi-PAM control scheme is compared with or without the series chopper. It is confirmed through two kinds of experimental analyses that the series chopper power train for EV can be useful to extend the driving distance if the high efficiency and the low weight of chopper are satisfied.

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“…7-9. The motor test bench is based on the actual EV (7) . The motors and the SAZZ choppers of the same specifications are used in the motor test bench and the actual EV.…”

Section: Basic Configuration Of Motor Test Benchmentioning

confidence: 99%

“…However, In order to solve this problem, the series chopper power train using the buck-boost chopper as shown in Fig. 2 was proposed (7) . This system is capable of having the equivalent characteristics to the boost chopper, and the efficiency of the inverter can be increased by step-down conversion of the chopper at the low speed regions.…”

Section: Introductionmentioning

confidence: 99%

High Efficiency Series Chopper Power Train for Electric Vehicles Using a Motor Test Bench

et al. 2015

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Many researchers have studied electric vehicles (EVs) for improving their efficiency to increase the driving range. The system design of an electrical power train has significant influence on the total driving range per charge and has been widely researched. A series chopper power train using a buck-boost chopper has been proposed as an electrical power train system. This electrical power train achieves high efficiency due to low and high inverter input voltage in the low and high speed regions, respectively. In previous studies, a high efficiency control optimizing the chopper output voltage was proposed, and a motor test bench with characteristics similar to actual EVs was constructed by using a battery emulation system with voltage variation characteristics, which occur due to the state of charge (SOC) and internal resistance. This paper shows the effects of optimizing the chopper output voltage on the driving range per charge in both efficiency estimation and the motor test bench experiment. This allows the verification of the usefulness of optimizing the chopper output voltage for increasing the efficiency. The results indicate an improvement of 0.9% and 2.7% in the driving range per charge during efficiency estimation and the motor test bench experiment, respectively.

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Experimental data analysis on total driving performance of series chopper based ev power train

Cited by 15 publications

References 8 publications

Large driving range increase of series chopper based power train using motor test bench

Large driving range increase of series chopper based power train using motor test bench

Driving Performance Experimental Analysis of Series Chopper Based EV Power Train

High Efficiency Series Chopper Power Train for Electric Vehicles Using a Motor Test Bench

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