Development of a Fuel Economy and Exhaust Emissions Test Method with HILS for Heavy-Duty HEVs

Morita, Kenji; Shimamura, Kazuki; Yamaguchi, Seiichi; Furumachi, Keiji; Osaki, Nobuya; Nakamura, Shuichi; Narusawa, Kazuyuki; Myong, Kwang-Jae; Kawai, Terunao

doi:10.4271/2008-01-1318

Cited by 9 publications

(2 citation statements)

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“…The HILS method was proposed by Kenji Morita, Kazuki Shimamura et al from the Japan Automotive Research Institute [12] . Using the Digital Signal Processor (DSP), the ECU operation mode is consistent with that installed on the actual vehicle through vehicle modeling and component modeling.…”

Section: Hils Methodsmentioning

confidence: 99%

Investigation of methods for measuring fuel economy and emissions of heavy-duty hybrid-electric vehicles (HEVs)

et al. 2022

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Hybrid-electric vehicles can achieve low fuel consumption and emission by optimal combination of electrical energy and internal combustion engine power. There are four main test method of energy consumption and emission for heavy-duty HEVs, including traditional engine bench test, powertrain test, HILS and chassis dynamometer test. The tradition engine operating conditions are distinguished from that in HEVs, which can’t reflect the performance of HEVs. Powertrain test can achieve braking energy regeneration, but need bulky installation on testbed. HILS test solves the problem that the engine test cycle is different from the actual operating condition on road and is cost-effective. However, it requires a lot of effort to monitor the HILS simulation input parameters and carry out vehicle validation. Chassis dynamometer test method can better reflect the real-road driving condition. But it is nearly impossible to test all different HEVs types on chassis dynamometer and the test cost is very expensive. By comparing different heavy-duty HEVs energy consumption and emission test methods, the advantages and disadvantages are identified, which provides guidance for the formulation of the next-stage standards of heavy-duty HEV, and promotes the healthy and orderly development of the HEV industry.

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Section: Hils Methodsmentioning

confidence: 99%

Investigation of methods for measuring fuel economy and emissions of heavy-duty hybrid-electric vehicles (HEVs)

et al. 2022

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“…Alternative measurement schemes, for example based on vehicle coast down, are relatively inaccurate and subject to noise factors such as wind direction, wind fluctuation and ambient conditions. Option 2b above, hardware-in-the-loop procedure, uses hardware-in-the-loop simulation (HILS) to predict the emissions and fuel efficiency of commercial vehicles [24]. The HILS method was developed initially for Hybrid Electric Vehicles (HEVs) by a Japanese consortium led by the Japanese Automobile Research Institute (JARI), Hino Motors, Isuzu Motors, Mitsubishi Fuso Truck and Bus, Nissan Diesel and National Traffic Safety and Environment Laboratory (NTSEL).…”

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confidence: 99%

Systematic Development of Highly Efficient and Clean Engines to Meet Future Commercial Vehicle Greenhouse Gas Regulations

Stanton

2013

SAE Int. J. Engines

133

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With increasing energy prices and concerns about the environmental impact of greenhouse gas (GHG) emissions, a growing number of national governments are putting emphasis on improving the energy efficiency of the equipment employed throughout their transportation systems. Within the U.S. transportation sector, energy use in commercial vehicles has been increasing at a faster rate than that of automobiles. A 23% increase in fuel consumption for the U.S. heavy duty truck segment is expected from 2009 to 2020. The heavy duty vehicle oil consumption is projected to grow while light duty vehicle (LDV) fuel consumption will eventually experience a decrease. By 2050, the oil consumption rate by LDVs is anticipated to decrease below 2009 levels due to CAFE standards and biofuel use. In contrast, the heavy duty oil consumption rate is anticipated to double. The increasing trend in oil consumption for heavy trucks is linked to the vitality, security, and growth of the U.S. and global economies.An essential part of a stable and vibrant U.S. economy is a productive U.S. trucking industry. Studies have shown that the U.S. gross domestic product (GDP) is strongly correlated to freight transport. As the economy grows, the freight tonnage increases as well as the annual vehicle miles traveled (VMT). Over 80% of all U.S. freight tonnage is transported by diesel power and over 75% is transported by trucks. The improved efficiency of heavy-duty engines and vehicles has been quickly overwhelmed by the increase in annual VMT. This results in heavy-duty vehicles consuming a growing share of the total transportation-related petroleum. Given the vital role that the trucking industry plays in the economy, improving the efficiency of diesel engines is a central focus of this paper.Trucks are the mainstay for trade, commerce, and economic growth. Sustaining a U.S. trucking industry that is competitive in global markets requires innovation. The truck manufacturing and supporting industries are faced with numerous challenges to reduce oil consumption and greenhouse gases, meet stringent emissions regulations, provide customer value, and improve safety. A key part of the strategy to meet these requirements is to improve the efficiency of the internal combustion engine (ICE) powering the trucks. The performance, low cost, and fuel flexibility render the ICE the leading candidate to power commercial vehicles for many decades.Historically, diesel engine technologies have taken more than 10 years after first introduced to diffuse throughout the commercial vehicle marketplace. This rate is faster when fuel economy provides a business advantage to the vehicle's owner. Increased efficiency and reduced emissions of diesel engines can be realized through technologies that improve engine design and better integrate systems. Engine manufacturers have a growing need to refine the capability to innovate, design, develop, and validate engine efficiency improvements. Therefore, the primary purpose of this paper is to provide guidelines and tools that allow ...

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Development of an electrically driven diesel fuel pump for commercial vehicles using HILS

Lim

2014

J Mech Sci Technol

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Development of a Fuel Economy and Exhaust Emissions Test Method with HILS for Heavy-Duty HEVs

Cited by 9 publications

References 1 publication

Investigation of methods for measuring fuel economy and emissions of heavy-duty hybrid-electric vehicles (HEVs)

Investigation of methods for measuring fuel economy and emissions of heavy-duty hybrid-electric vehicles (HEVs)

Systematic Development of Highly Efficient and Clean Engines to Meet Future Commercial Vehicle Greenhouse Gas Regulations

Development of an electrically driven diesel fuel pump for commercial vehicles using HILS

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