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Evaluation and development of improved braking model for a motor-assisted vehicle using MATLAB/simulink

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Abstract

In recent years, R&D trends in the automobile industry have involved developing vehicles that are eco-friendly and have good fuel economy in order to meet increasingly stringent vehicle emission and fuel economy regulations. Among various environmentallyfriendly vehicles, recently-developed hybrid electric vehicles have been considered a successful technology. To improve the hybrid electric vehicle’s efficiency, a regenerative braking system is applied that can save waste braking energy and fuel consumption. To date, much research has been conducted that is related to regenerative brake systems for motor-assisted vehicles. In this study, a vehicle brake model and DC motor model have been developed to predict the braking and electric characteristics of vehicle and motor by using MATLAB/Simulink code and compared with brake performance reference data. Since generating current is a key factor for regenerative braking in a hybrid electric vehicle (HEV) system, electric characteristics are the focus of this study. Therefore, in order to investigate the electric characteristics, analysis is also performed using the DC motor model. The main results obtained by this study are that the vehicle braking dynamics calculated by MATLAB/Simulink simulation were in reasonable agreement with reference values. Using the vehicle brake model, analysis is carried out for investigating the numerical model’s characteristics and performances at initial velocity, slip ratio and road conditions. Additionally, experimentation is carried out using a chassis dynamometer and a hybrid electric vehicle, and the data are analyzed.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Graduate School, Soongsil University, Seoul, 156-743, Korea

    Sangmyeong Kim, Jinsu Kim & Gisu Sung

  2. Department of Mechanical Engineering, Soongsil University, Seoul, 156-743, Korea

    Jinwook Lee

Authors
  1. Sangmyeong Kim
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  2. Jinsu Kim
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  3. Gisu Sung
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  4. Jinwook Lee
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Corresponding author

Correspondence to Jinwook Lee.

Additional information

Recommended by Associate Editor Eung-Soo Shin

Sangmyeong Kim received his Master’s degree in Mechanical Engineering, Soongsil University, Korea. He is currently a Ph.D. student at Center for Power Source Research for Next-Generation Mobility of Chiba University, Japan. His research interests are powertrain and vehicle emission technology of diesel and gasoline vehicles using chassis dynamometer and PEMS.

Jinwook Lee received his Ph.D. in Mechanical Engineering, Seoul National University, Korea. He is currently a professor at department of mechanical engineering, Soongsil University. His research interests are automotive powertrain system and clean energy technology for ICV, HEV and FCEV.

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Kim, S., Kim, J., Sung, G. et al. Evaluation and development of improved braking model for a motor-assisted vehicle using MATLAB/simulink. J Mech Sci Technol 29, 2747–2754 (2015). https://doi.org/10.1007/s12206-015-0603-2

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  • DOI: https://doi.org/10.1007/s12206-015-0603-2

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