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World Electric Vehicle Journal is published by MDPI from Volume 9 issue 1 (2018). Articles in this Issue were published by The World Electric Vehicle Association (WEVA) and its member the European Association for e-Mobility (AVERE), the Electric Drive Transportation Association (EDTA), and the Electric Vehicle Association of Asia Pacific (EVAAP). They are hosted by MDPI on mdpi.com as a courtesy and upon agreement with AVERE.
Open AccessArticle

Development of Performance Simulator for a HEV with CVT and Validation with Dynamometer Test Data

1
School of Mechanical Engineering, Sungkyunkwan University, Suwon-si, Republic of Korea
2
Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL, 60439-4815 USA
*
Author to whom correspondence should be addressed.
World Electr. Veh. J. 2015, 7(2), 270-277; https://doi.org/10.3390/wevj7020270
Published: 26 June 2015
PDF [958 KB, uploaded 18 May 2018]

Abstract

In this paper, control analysis was performed for a hybrid electric vehicle (HEV) equipped with a continuously variable transmission (CVT) under various driving conditions. First, a dynamic CVT model was developed by considering hydraulic and mechanical losses. The hydraulic loss accounts for the majority of the total losses at low vehicle speeds, whereas the mechanical loss accounts for the majority at high speeds. In addition, CVT ratio control and clamping force control strategies were developed, including manipulation of the CVT shift dynamics. On the basis of the dynamic model of the CVT, an HEV performance simulator was developed using Argonne National Laboratory (ANL)’s model-based simulation program, Autonomie. Second, by analysing the test results from ANL, an engine optimal operating line was constructed on the basis of the engine brake-specific fuel consumption. Third, the battery state-of-charge range and the battery characteristics of the maximum charging and discharging power were investigated. Using the analysis results, vehicle operation control strategies were developed for the acceleration, cruising, deceleration and idling modes. Also, control algorithms were developed for each vehicle operation mode. Finally, the control algorithms were verified by comparing the simulation results with the test results.
Keywords: Continuously variable transmission; hybrid electric vehicle Continuously variable transmission; hybrid electric vehicle
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Son, H.; Kim, N.; Ko, S.; Aymeric, R.; Kim, H. Development of Performance Simulator for a HEV with CVT and Validation with Dynamometer Test Data. World Electr. Veh. J. 2015, 7, 270-277.

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