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Development of a Fuel Economy and Exhaust Emissions Test Method with HILS for Heavy-Duty HEVs
- Kenji Morita - Japan Automobile Research Institute (JARI) ,
- Kazuki Shimamura - Japan Automobile Research Institute (JARI) ,
- Seiichi Yamaguchi - Hino Motors, Ltd. ,
- Keiji Furumachi - Isuzu Motors, Ltd. ,
- Nobuya Osaki - Mitsubishi Fuso Truck & Bus Corp. ,
- Shuichi Nakamura - Nissan Diesel Motor Co., Ltd. ,
- Kazuyuki Narusawa - National Traffic Safety and Environment Laboratory (NTSEL) ,
- Kwang-Jae Myong - National Traffic Safety and Environment Laboratory (NTSEL) ,
- Terunao Kawai - National Traffic Safety and Environment Laboratory (NTSEL)
ISSN: 1946-3936, e-ISSN: 1946-3944
Published April 14, 2008 by SAE International in United States
Citation: Morita, K., Shimamura, K., Yamaguchi, S., Furumachi, K. et al., "Development of a Fuel Economy and Exhaust Emissions Test Method with HILS for Heavy-Duty HEVs," SAE Int. J. Engines 1(1):873-887, 2009, https://doi.org/10.4271/2008-01-1318.
The objective of this study was to develop a test method for heavy-duty HEVs using a hardware-in-the-loop simulator (HILS) to enhance the type-approval-test method. To achieve our objective, HILS systems for series and parallel HEVs were actually constructed to verify calculation accuracy. Comparison of calculated and measured data (vehicle speed, motor/generator power, rechargeable energy storage system power/voltage/current/state of charge, and fuel economy) revealed them to be in good agreement. Calculation error for fuel economy was less than 2%. To establish an HILS method, the following items were carried out: (a) Typical HEV models for the HILS system were proposed to enable them to be adapted to all types of heavy-duty HEVs which will be launched over the next few years in Japan; (b) Test procedures for HEV components such as engines, motors/generators and batteries were proposed to measure the parameters of HEV models; and (c) A verification procedure for the HILS system was developed.
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