Torque control of engine clutch to improve the driving quality of hybrid electric vehicles

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 th...

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Bibliographic Details
Published in:International journal of automotive technology 2011, 12(5), , pp.763-768
Main Authors: Hwang, H. S., Yang, D. H., Choi, H. K., Kim, H. S., Hwang, S. H.
Format: Article
Language:English
Subjects:
Automobiles
Automotive Engineering
Automotive engines
Computer simulation
Design engineering
Driving
Electric vehicles
Energy efficiency
Engineering
Engines
Friction
Hybrid vehicles
Hybridization
Mathematical models
Matlab
Powertrain
Sales
Simulation
Studies
Torque
Torque converters
Vehicle transmissions
Velocity
자동차공학
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Summary: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.
ISSN:1229-9138
1976-3832
DOI:10.1007/s12239-011-0088-7