Development of New Hybrid System for Compact Class Vehicles

Matsubara, Tooru; Yaguchi, Hideaki; Takaoka, Toshifumi; Jinno, Kunihiko

doi:10.4271/2009-01-1332

Cited by 37 publications

(16 citation statements)

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“…The engine displacements for the Fusion and Prius are 2.5L and 1.8L, respectively. In the case of the Prius, the current generation engine represents an increase in engine provide improved efficiency during highe [4]. Although only for one vehicle, this m engine displacement is particularly notewo counter to the conventional vehicle tr displacement for improved fuel economy.…”

Section: Refinements For Improved Real-world Fuel Economymentioning

confidence: 92%

“…Additionally, the flexibility of higher voltage afforded by the boost converter allows for some unique system designs and motor configurations [4]. Fig.…”

Section: Reduced Battery Pack Voltage and Voltage Boostingmentioning

confidence: 99%

“…1 shows the evaluation vehicles in the laboratory. More information and test data pertaining to these vehicles can be found in [1,2,3,4,5].…”

Section: Introductionmentioning

confidence: 99%

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Recent hybrid electric vehicle trends and technologies

Rask

Duoba

Lohse-Busch

2011

2011 IEEE Vehicle Power and Propulsion Conference

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In collaboration with the Department of Energy's Advanced Vehicle Testing Activity, Argonne National Laboratory performs dynamometer testing and evaluation for a wide array of advanced vehicles. Using data obtained from this benchmarking, this paper discusses recently observed trends in hybrid electric vehicle technologies, discussing both overall vehicle trends as well as select component trends. This work discusses both "full" hybrids with a significant amount of electric (EV) or engine-off operation and more "mild" hybrids with a lesser amount of electric operating capability. This paper seeks to summarize some of the high-level operation trends that have been appearing in recent hybrid electric vehicles.

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Section: Refinements For Improved Real-world Fuel Economymentioning

confidence: 92%

“…Additionally, the flexibility of higher voltage afforded by the boost converter allows for some unique system designs and motor configurations [4]. Fig.…”

Section: Reduced Battery Pack Voltage and Voltage Boostingmentioning

confidence: 99%

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Recent hybrid electric vehicle trends and technologies

Rask

Duoba

Lohse-Busch

2011

2011 IEEE Vehicle Power and Propulsion Conference

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“…Figure 1 shows an example electric system of the strong HEV. In a compact car, the voltage of the main battery is~200 V and is controlled as much as 650-700 V by the boost converter [4]. A three-phase DC-AC inverter drives a motor for traction.…”

Section: Present Statusmentioning

confidence: 99%

Power Electronics for Vehicles and Energy Systems

Umeno

2016

Energy Technology Roadmaps of Japan

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Power electronics that enable DC-AC, AC-DC, or DC-DC conversion of electric power are one of the key technologies for the spread of electric-drive vehicles and renewable energy systems such as PV and wind turbine generators that address the global warming issue and contribute to energy saving. In particular, electrification of vehicles that eliminate about 20 % of total CO 2 emissions contributes to overall reduction of those emissions, and power electronics become an important technology in vehicle electrification. Wide-bandgap semiconductors such as SiC or GaN are important to future technical development of power electronics. Compared with Si, SiC has superior properties in that it has three times the bandgap, twice the saturation velocity, ten times greater breakdown field, and three times greater thermal conductivity. Given these characteristics, wide-bandgap power devices can be driven at high frequency and high temperature, and drastic downsizing of the converter and loss reduction are enabled. By replacing conventional Si power devices with SiC, significant energy saving is anticipated.

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“…While the basic powertrain configuration remained unchanged aside from a gearing update, the engine and electric motor were up-rated again. The 1.8 liter Atkinson cycle engine now produced 73 kW and the electric motor produced 60 kW [46].…”

Section: Figure 6 First Generation Toyota Hybrid System [45]mentioning

confidence: 99%

Development of a powertrain control algorithm for a compound-split diesel hybrid-electric vehicle

Ward¹

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The goal of this research was to develop a unique powertrain control algorithm for a dieselpowered compound-split hybrid crossover utility vehicle (CUV) and evaluate the fuel consumption and greenhouse gas emissions benefits that can be realized compared to existing non-hybrid, gasolinepowered CUVs. This was achieved through the implementation of engine on/off functionality, regenerative braking, and electric-only drive. The research was conducted in conjunction with the university's participation in EcoCAR: The NeXt Challenge, an inter-collegiate advanced vehicle engineering competition focused on developing alternatively powered vehicles in the interest of providing improved fuel efficiency and reduced tailpipe emissions while maintaining useful vehicle functionality.Prior to construction, the proposed vehicle was simulated for fuel efficiency and carbon dioxide emissions using the Powertrain System Analysis Toolkit. Initial simulation results indicated that the proposed compound-split hybrid vehicle would achieve 35 mpgge combined fuel economy and produce carbon dioxide at a rate of 242 g/mi. A 2009 Saturn Vue was modified to accept the proposed hybrid powertrain consisting of a 1.3 liter diesel engine, 2-mode compound-split transaxle, and lithium-ion high-voltage battery system. This vehicle served as the platform for the development and validation of the powertrain control algorithm. Using the vehicle's CAN communication capabilities, auxiliary control units were integrated to manage the new powertrain components and implement the control strategy. The project vehicle and control algorithm were validated and tested on-road for fuel efficiency and performance. The final powertrain control algorithm developed through this research included automatic engine start/stop, regenerative braking, and full-electric driving capability at speeds up to 25 mph. In its final configuration, the WVU 2-mode hybrid-electric vehicle achieved city/highway fuel economy of 24.5/31.5 mpgge.Compared to the base vehicle, the project vehicle achieved a 28.9% improvement in city fuel economy, a 21.2% improvement in highway fuel economy, and a 20% reduction of in-use CO 2 emissions.iii AcknowledgementsThe work discussed in these pages has been everything but a solo effort; I'm just the guy who got to write about it. The success of this project relied on a total team effort and I was lucky enough to work with some of the hardest-working, brightest people I've ever met. I'd like to take a page or so here to recognize a few of them.I would first like to thank Dr. Scott Wayne for letting me hang around for an extra two years, getting paid to do what I do for fun in my free time. I've heard horror stories about research advisors abusing their assistants and setting unreasonable deadlines and I can safely state that Dr. Wayne has to be the best advisor in the college. He was always available to answer any questions I had, he was actively involved in the project, and he was just a genuinely good guy, even if he is of the "Blue Oval" persuasion...

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Development of New Hybrid System for Compact Class Vehicles

Cited by 37 publications

References 2 publications

Recent hybrid electric vehicle trends and technologies

Recent hybrid electric vehicle trends and technologies

Power Electronics for Vehicles and Energy Systems

Development of a powertrain control algorithm for a compound-split diesel hybrid-electric vehicle

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