Development and Practical Use of EiL (Engine-in-the-Loop) for Pollutant Emissions Performance Design

Motoki Takahata･Kenichiro Ogata (Honda Motor)･Ryohei Sugamata (Honda R&D)･Masayoshi Nishino･Toru Nakashima･Koji Yoshida (Honda Motor)

In order to achieve front-loading for powertrain development, it is necessary to predict pollutant emissions performance of full-vehicle in early stage of development. In this study, it is described a methodology for building an EiL environment by coupling of a concept model of hybrid powertrain and an engine testbed. In addition, this paper describes a prediction method of pollutant emission performance using EiL.

Modeling of Heavy-duty PTO Type Parallel Hybrid Electric Vehicle and Analysis on Fuel Economy Impact (First Report)

Norifumi Mizushima (AIST)･Kyohei Yamaguchi (Kokushikan University)･Toshimichi Takahashi (Meidensha)

A heavy-duty PTO (power-take-off) type parallel hybrid electric vehicle (HEV) model was developed using the OpenModelica which handles the Modelica language to analyze the fuel economy impact by the electrified powertrain. The first report presents an overview of the vehicle plant model and powertrain control model, as well as the parameter identification method and results of the motor/generator model for the parallel hybrid system based on vehicle measurement using a chassis dynamometer. The developed heavy-duty PTO type parallel HEV model enabled driving cycle simulations based on various hybrid powertrain control strategies.

Modeling of Heavy-duty PTO Type Parallel Hybrid Electric Vehicle and Analysis on Fuel Economy Impact (Second Report)

Kyohei Yamaguchi (Kokushikan University)･Norifumi Mizushima (AIST)･Toshimichi Takahashi (Meidensha)

Recently, electrification of the powertrain is required for heavy-duty vehicles as well. In this study, a heavy-duty PTO (power-take-off) type parallel hybrid electric vehicle (HEV) model for fuel economy simulation is developed using the OpenModelica which handles the Modelica language to analyze its fuel economy impact by the electrified powertrain. The second report first presents a method for identifying each component model using data measured on a chassis dynamometer. Next, the accuracy of the developed model is verified. Finally, the fuel economy impact for different hybrid powertrain control strategies is analyzed using the developed model.

Control of Internal Combustion Engine in Hybrid System for Small Race Car
-Experimental Consideration on Control Performance of Electronically Controlled Throttle System-

Hayato Yamada･Masamune Kobayashi･Yusuke Ebashi･Ikkei Kobayashi･Jumpei Kuroda (Tokai University)･Taro Kato (Tokyo University of Technology)･Keigo Ikeda (Hokkaido University of Science)･Ayato Endo (Fukuoka Institute of Technology)･Takayoshi Narita･Hideaki Kato (Tokai University)

Hybrid vehicles are powered by an internal combustion engine and an electric motor. This can improve the dynamic performance, and a high-performance powertrain can be considered. However, precise control is required, especially for the internal combustion engine, which is difficult to control. We proposed a system control using an electronic throttle and investigated its usefulness experimentally and analytically.