Power consumption analysis of the powertrain system of electric bus for the case study of high altitude roadway

Name: Phyo, Lwin Yamon

LCSH: Electric railroads

LCSH: Buses

LCSH: Bus driving

LCSH: Transportation, Automotive

LCSH: Pavements

ThaSH: Roads

Abstract: The majority of the world’s transportation systems are controlled by combustion vehicles that have a greater impact than the other types of vehicles on air pollution and greenhouse gas emissions. When the electricity power is generated from renewable resources, switching from convectional fuel cars to electric vehicles can reduce greenhouse gas emissions. In the energy transition, electric buses are anticipated to become even more significant. There are many challenges to manage the electric power consumption rate while operating on everyday routes, especially for the case of high altitude roadways. This thesis is mainly dealt with the power consumption analysis of the electric bus’s powertrain system on many types of factors and numerous design variables, taking the slope of the roads into consideration. The basic parameters of 12 meter aluminum electric bus are used to prototype in the simulation model. The suitable electric motor and batterypack that are matched with the requirements of that electric bus are also selected. เท this thesis, the sizing design calculation for each component is provided. Furthermore, the road test along the Samaedam bus depot and Samutprakan crocodile farm using bus line 142 is performed to get the data of geographic location and elevation of the roadways and the speed profile of the bus. Using these data as the inputs, the simulation model of the whole system of electric bus’s powertrain is built in MATLAB/Simulink environment. Different scenarios and design variables are settled to evaluate the power consumption rate analysis. The results of the simulated tests are compared and shown under various designs for the driving cycles, gear ratios, electric motors, batterypack and regenerative braking portions. The simulated outcomes demonstrate that regenerative braking cause an increase in power consumption when less electrical power is returned to the battery. Moreover, it is noticed that power output stays at its peak condition when the bus crosses on the RAMA IX bridge which is the highest altitude along the whole route

King Mongkut's Institute of Technology Ladkrabang. Central Library

Address: BANGKOK

Email: Lifelong@kmitl.ac.th

Name: Nattawoot Depaiwa

Role: Thesis Advisor

Email : nattawoot.de@kmitl.ac.th

Name: Yamakita, Masaki

Role: Thesis Co-Advisor

Created: 2023

Modified: 2024-07-03

Issued: 2024-07-03

วิทยานิพนธ์/Thesis

application/pdf

eng

DegreeName: Master of Engineering

Level: Master's Degree

Descipline: Automotive and Advanced Transportation Engineering

Grantor: King Mongkut's Institute of Technology Ladkrabang

©copyrights King Mongkut's Institute of Technology Ladkrabang

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