Digital Library on Green Mobility

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A Novel Hybrid Vehicle Architecture: Modeling, Simulation and Experiments


Publication Year: 2018

Author(s): Chanumolu R

Abstract:

In the first part of the thesis, the author presented data collected in the city of Bangalore, India from a very commonly seen mode of transportation for hire in India and other emerging economies, namely a three-wheeled vehicle known as the “auto-rickshaw”. From a statistical analysis, it is shown that the typical range is 72.5 km with a mean speed of 12.5 km/h. More than 60% of the time the auto-rickshaw is stationary or has a speed of less than 5 km/h. From a model of the auto-rickshaw, it is shown from simulations that 4 kW DC motor and about 10 kWh of electrical energy is enough to meet 80% of typical requirement. Based on this finding, in this thesis, a novel parallel hybrid architecture is proposed where two 2 kW DC hub motors are directly mounted on the wheels and an internal combustion (IC) engine output is connected to the stator of the DC hub motors to provide additional power when required. To match load and speed, a continuously variable transmission (CVT) is placed in-between the IC engine and the DC hub motor. The proposed hybrid configuration adds speed to the wheel output unlike the normal power split configuration which adds torque. One of the main objective of this work is to study and compare the performance of the above novel speed-addition and compare with the typical torque-addition configuration. A MATLAB/Simulink model for both the configurations, with DC hub motor and a small IC engine, has been created and the fuel consumption has been calculated. 

Country: India

URL:
https://etd.iisc.ac.in/handle/2005/3585?show=full

Theme: Vehicle Technology | Subtheme: Electric vehicles

Tags: Hybrid electric vehicles (HEVs), Auto-rickshaw usage, Heuristic control, DC hub motors

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