Analysis of dynamic performance and compatibility of electric bus based on real-road data BY Yu, Tae hyun Major of Mechatronics Engineering Department of Mechatronics Engineering Graduate School Korea University of Technology and Education
ABSTRACT
Many countries around the world are regulating the exhaust gas
emission of internal combustion engine vehicles. Along with the spread
of support policies for the introduction of eco-friendly vehicles, they
try to replace conventional internal combustion engine buses with
electric buses in large cities.
Buses using electricity have a simpler structure and fewer parts
than an internal combustion engine, so they are highly reliable and
require fewer maintenance elements. In addition, they do not emit
pollutants because they use electricity as power. They have low noise
and vibration, so they are easy to apply to big city bus routes. In
addition, energy price is cheaper than diesel or CNG, and energy
consumption efficiency is also high. However, it takes long to charge
the battery, and the replacement cycle is relatively short as well as it
is expensive. Accordingly, studies on the application of electric buses
to bus routes in large cities are being continuously studied.
In this paper, it was analyzed whether large electric buses are
suitable for application to bus routes in large cities with congested
traffic. To this end, a vehicle simulation model was established based
on the component parts and vehicle specifications of the electric bus.
Then, the basic power performance of the applied electric bus was
analyzed through the established vehicle simulation model. In addition,
the actual vehicle correlation verification of the vehicle simulation
model established through the chassis dynamometer actual vehicle test
was performed.
For the analysis of the suitability of electric buses for bus route
operation in large cities, a vehicle simulation scenario was established
based on the actual road data of the Bangkok in Thailand. Through
the verified vehicle simulation model, the suitability of operation of the
Bangkok city route in Thailand was verified, focusing on the electric
energy consumption efficiency of the electric bus and the mileage per
charge.
It is expected that the simulation model for verifying the applicability
of the electric bus in this paper will be very useful in examining the
applicability of the electric bus on the bus routes in large cities.
