Impact of Critical Variables on Economic Viability of Converted Diesel City Bus into Electric Bus

Author(s):  
Kristine Malnaca ◽  
Irina Yatskiv (Jackiva)
2014 ◽  
Vol 977 ◽  
pp. 218-221 ◽  
Author(s):  
Feng He ◽  
Hai Bo Wu ◽  
Huan Li ◽  
Yi Ming Li

Powertrain system of pure electric city bus is composed mainly of battery, motor and transmission, it decide practically the acceleration performance of pure electric city bus. The method and principle of parameters design for dynamic system of pure electric city bus was investigated in this paper. Based on parameter matching for electromotor, cells and driveline, a performance simulation model was developed utilizing the dynamic simulation software of advanced vehicle simulator. The acceleration performance of pure electric city bus was simulated in CYC_ECE_EUDC drive cycle. Simulation result indicates that the acceleration performances of pure electric bus and maximum mileage were satisfied to the design requirement. Description that pure electric city bus powertrain system and simulation model were reasonably.


2014 ◽  
Vol 15 (1) ◽  
pp. 67-76 ◽  
Author(s):  
Igors Graurs ◽  
Aleksandrs Vizulis ◽  
Aivars Rubenis ◽  
Aigars Laizāns

Abstract This paper describes the initial findings of research project “The Possibilities of Increasing Efficiency of City Bus Hybrid Propulsion Systems by Including Wireless Battery Charging” carried out by „LEO Research Centre” (Competency Centre for Latvian Electrical and Optical Manufacturing Industry). The project is aimed at developing wireless charging and optimising electric bus propulsion system for modern urban transportation applications. The project runs from the beginning of the 2013 until the end of 2015 and focuses on the sub-theme “Energy and Sustainable Transport”.


2015 ◽  
Vol 713-715 ◽  
pp. 1351-1355
Author(s):  
Hong Wei Chen ◽  
Xin Zhang ◽  
Xiao Shuai Zhang

A new type powertrain system architecture for city electric bus was introduced, which combines the function of Extended-Range Electric Vehicle (E-REV) and Plug-in Hybrid Electric Vehicle (P-HEV). Five driving modes were designed and its dynamics were analyzed. Numerical method on dynamics was proposed. The dynamic performance parameter of five drive modes were calculated and analyzed. The results indicate that the dynamic performance reaches the limit value at full drive mode and meet the requirement of city bus.


2012 ◽  
Vol 512-515 ◽  
pp. 2598-2602 ◽  
Author(s):  
Dong Bo Yang ◽  
Li Liu ◽  
Ceng Zeng ◽  
Li Bo Han

Life cycle analysis provides global research methods for the assessment of life cycle performance. In this research, a WTW(well to wheel)model was introduced to study and compare the energy efficiency and CO2 emissions from diesel bus, CNG bus and electric bus. The results show that the WTW total energy efficiency of diesel bus is 1790MJ/100km. The energy efficiency of CNG bus is 6% lower than that of diesel bus, while the energy efficiency of electric bus is 36% higher than that of diesel bus. Both CNG bus and electric bus show good potential of oil replacement with oil consumption decrease of 98% and 90%. As more than 80% of China’s electricity is produced by coal, electric bus has equal effect as CNG bus on CO2 reduction. Compared to diesel bus, CO2 emissions from new energy bus are reduced by 14%.


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