Journal
INTERNATIONAL JOURNAL OF AUTOMOTIVE TECHNOLOGY
Volume 12, Issue 5, Pages 763-768Publisher
KOREAN SOC AUTOMOTIVE ENGINEERS
DOI: 10.1007/s12239-011-0088-7
Keywords
Hybrid electric vehicle (HEV); Engine clutch; Driving quality; Drive shaft torque; Torque control; Engine control; Motor control
Funding
- Ministry of Knowledge Economy(MKE)
- Korea Institute for Advancement of Technology (KIAT)
- Ministry of Public Safety & Security (MPSS), Republic of Korea [2008-B08-009] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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As a powertrain for hybrid electric vehicles (HEVs), the automatic transmission (AT) is not only convenient for the driver but also reduces hybridization costs because the existing production line is used to produce the AT. However, it has low fuel economy due to the torque converter. To overcome this disadvantage, this paper studies HEVs equipped an AT without a torque converter. In this case, additional torque control is needed to prevent the driving quality from deteriorating. This paper suggests three different torque control methods and develops a simulator for an HEV that can simulate the dynamic behaviors of the HEV when the engine clutch is engaged. The HEV drive train is modeled with AMESim, and a controller model is developed with MATLAB/Simulink. A co-simulation environment is established. By using the developed HEV simulator, simulations are conducted to analyze the dynamic behaviors of the HEV according to the control methods.
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