Study on the Potential Benefits of Plug-in Hybrid Systems

Komatsu, Masayuki; Takaoka, Toshifumi; Ishikawa, Tsuyoshi; Gotouda, Yuujin; Suzuki, Naoto; Ozawa, Tamaki

doi:10.4271/2008-01-0456

Cited by 13 publications

(8 citation statements)

References 1 publication

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“…It can be seen that none of the 45 naturalistic cycles have a lower maximum propelling power demand than the UDDS. In [2], based on simulations with UDDS, it is suggested that a battery and motor size capable of handling 40kW power demand will enable electric operation 100% of the time (or charge depleting mode) and the electric operation would drop to only 95% with a 20 kW battery-motor unit. Figure 1a confirms this, but also shows a stark contrast in results for naturalistic drive cycles.…”

Section: Effects Of Naturalistic Driving On Phev Performancementioning

confidence: 99%

“…The features of the power-split system and its control create strong interdependencies between components, and that is one of the reasons why the system is relatively in-sensitive to variations of just the motor. This explains the choice of keeping the motor/generators moderately sized advocated in [2]. Battery and Engine -the average battery efficiency (which mainly considers internal resistance and heat losses) increases with increasing battery size for both the UDDS cycle and the naturalistic short-suburban, as shown in Figure 5.…”

Section: Sensitivity Study For the Power Split Vehicle -mentioning

confidence: 99%

“…On one end of the spectrum is the series configuration with emphasis on a long All Electric Range (AER), such as the Extended Range Electric Vehicle (E-REV) under development at GM [1]. On the other end of the spectrum, a power-split configuration such as the Toyota Prius with relatively modestly sized electric components offers a very different solution, as the electric range is traded off for lower initial cost [2]. Achieving the true AER, with no engine-on intervals, requires a large enough traction motor and a battery capable of satisfying peak power demands.…”

Section: Introductionmentioning

confidence: 99%

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Impact of Naturalistic Driving Patterns on PHEV Performance and System Design

Patil

Adornato

Filipi

2009

SAE Technical Paper Series

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The paper investigates the impact of the drive cycle choice on the Plug-in Hybrid Electric Vehicle (PHEV) design, and particularly the selection of component sizes. Models of representative Power-Split and Series PHEVs have been built and validated first. Then, the performance and energy/power usage metrics were obtained by simulating the vehicle behavior over realworld (naturalistic) drive cycles recorded during Field Operational Tests in South East Michigan. The PHEV performance predictions obtained with real-world driving cycles are in stark contrast to the results obtained by using a sequence of repeated federal drive cycles. Longer commutes require much higher peak power and consume much greater amount of energy per mile than EPA UDDS or HWFET cycle. The second part of the paper investigates the sensitivities of the PHEV attributes, such as the charge depleting range and the fuel economy in the charge sustaining mode, to component size variations. The results provide quantitative guidance pertaining to design decisions in the context of driving patterns.

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Section: Effects Of Naturalistic Driving On Phev Performancementioning

confidence: 99%

Section: Sensitivity Study For the Power Split Vehicle -mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Impact of Naturalistic Driving Patterns on PHEV Performance and System Design

Patil

Adornato

Filipi

2009

SAE Technical Paper Series

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“…Various powertrain technologies are being researched to address the oil depletion problem ranging from advanced combustion engine (Iwamoto et al, 1997;Harata et al, 1997), hybrid electric vehicle (Takuji et al, 2009;Natsuki et al, 2009), plug-in hybrid electric vehicle (Komatsu et al, 2008;Markel, 2007;Golbuff, 2007), pure electric vehicles (Hori et al, 1998;Sakai et al, 1999) and fuel cell electric vehicle (Bono et al, 2009;Noto et al, 2009). Majority of these technologies involve electrification of powertrain and some are in favor compared to the others depending on situation whether the type of technologies are practical and commercially viable to produce in volume and to distribute for the public use.…”

Section: Introductionmentioning

confidence: 99%

Optimized dynamic battery model suited for power based vehicle energy simulation

Guezennec

Choi

2011

Int.J Automot. Technol.

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Ever increasing demand for the petroleum is causing faster than expected oil shortages in the supply and demand balance around the world and furthermore, many specialists in the field of oil production such as Association for the Study of Peak Oil and World Energy Outlook are claiming that the petroleum is around the peak of its production ( Figure 1). Such shortage made the greatest impact on the gasoline price hikes at the gas pump and thus, this impact was felt by the consumers severely and became the greatest motivation for automotive industries to strive to pioneer the researches for the next generation vehicle configurations ranging from HEV, PHEV, Pure EV to FCHEV (collectively noted as xEV). While the great deal of researches has been carried over the last few decades, it is still far from mass productions for consumer use except for the HEV mainly due to the high cost involved with other types of xEV configurations. Therefore, it is critical to design the vehicle to maximize the use of each component at its highest point regardless of any cost scenarios and it is clear that this optimization can only be achieved through the accurate energy balance simulation for a specific target vehicle prior to the actual hardware implementation. In this paper, it is our intention to introduce modified dynamic battery modeling scheme that would provide a more accurate way of simulating the battery behavior when used in the vehicle energy simulation system. Starting from a typical battery dynamic model to predict the voltage given an imposed current request, we have introduced a new scheme to establish the relationship between the voltage and the power (rather than the current) requested by the vehicle simulation system. The proposed scheme handles the power request from the vehicle simulator considering the dynamic battery characteristics and in turn, contributes to the better estimation of the current integrated energy usage and battery SOC level in the given battery dynamic system used in the vehicle energy simulation system.

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“…Among the others, novel powertrain concepts, such as hybrid, plugin hybrid and electric vehicles (HEVs, PHEVs and EVs), can be regarded as primarily important. As of now, HEVs and PHEVs are a shorter term solution than EVs: several companies have in fact undertaken the development and commercialization of hybrid vehicles [12], [21], recently adopting Lithium-based batteries and ultracapacitors taking also advantage of specifically funded programs [15]. However, HEVs and, above all, their powertrains, still require further development not only in terms of design and energy performance optimization, but also in terms of optimal dynamic control of power-splitting during the management of real-world transient load request change.…”

Section: Introductionmentioning

confidence: 99%

Dynamic input allocation of torque references for a parallel HEV

Cordiner

Galeani

Mecocci

et al. 2010

49th IEEE Conference on Decision and Control (CDC)

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A novel strategy for the dynamic managment of the load request for the Internal Combustion Engine (ICE) and the Electrical Motor (EM) in a parallel hybrid vehicle is presented. The goal is the performing of a load splitting between ICE and EM subject to the achievement of good drivability of the vehicle in terms of coherence of the torque supply with the driver request (transient performance) for every load splitting between the two motors (static performance). In particular a dynamic allocation scheme is proposed, which dynamically distribute the power demand among the two propulsion systems, using suitable characterizations of their dynamics. Its stability and convergence properties are formally proven and the effectiveness of the control scheme is illustrated via simulations

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Study on the Potential Benefits of Plug-in Hybrid Systems

Cited by 13 publications

References 1 publication

Impact of Naturalistic Driving Patterns on PHEV Performance and System Design

Impact of Naturalistic Driving Patterns on PHEV Performance and System Design

Optimized dynamic battery model suited for power based vehicle energy simulation

Dynamic input allocation of torque references for a parallel HEV

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