Abstract
Emission problem of city bus running under low speed and low load is gradually becoming a research hotspot. The city buses were taken as research object in this paper. Emissions of two city bus were tested on heavy duty chassis dynamometer under CCBC. Test results showed that under low speed and low load conditions, because of low transformation efficiency of SCR, NOx emission of engine was serious, but the NOx emission of test vehicle can be significantly reduced by using the method of fixing heat insulating material on the exhaust pipe and ECU calibration according to low speed and load conditions of city buses. Test results also showed that after rehabilitation, emission reduction effect of NOx was above 40%, other emissions do not deteriorate significantly.
References
Ailing Q (2010) Analysis of technical routes for vehicle diesel engine to meet the national V emission stage. Shanghai Mot 2:59–62
Jian Huang (2008) Analysis of technical routes for diesel engine to meet high standard emission regulations. J Fujian Univ Technol 10:149–152
Zhongbiao W, Boqiong J, Yue L, et al (2007) Experimental study on a low-temperature SCR catalyst based on MnOx/TiO2 prepared by sol–gel method. J Hazard Mater 145(3):488–494
Lin M, Qin K, Yan F, et al (2013) Study on the driving cycle and NOx emission characteristics of city bus. Adv Mater Res 718:2457–2462
Chen Z, Hu J (2010) Experimental study on improving NOx conversion efficiency of urea-SCR system for diesel engine. Veh Eng 191(6):79–82
GB/T 27840–2011 (2011) Fuel consumption test methods for heavy-duty commercial vehicles. Published in 2011
GB/T 17691-2005 (2005) Limits and measurement methods for exhaust pollutants from compression ignition and gas fuelled positive ignition engines of vehicles (III, IV, IV). Published in 2005
National Technical Committee of AUTO Standardization (2013) GB/T 19754-2013 test methods for energy consumption of heavy-duty hybrid electric vehicle. Beijing, Published in 2013
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2017 Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Li, T., Wang, C., Qin, K., Jing, X. (2017). Optimization Method of Low Exhaust Temperature Emissions of City Buses Meet China V. In: Proceedings of SAE-China Congress 2016: Selected Papers. SAE-China 2016. Lecture Notes in Electrical Engineering, vol 418. Springer, Singapore. https://doi.org/10.1007/978-981-10-3527-2_8
Download citation
DOI: https://doi.org/10.1007/978-981-10-3527-2_8
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-10-3526-5
Online ISBN: 978-981-10-3527-2
eBook Packages: EngineeringEngineering (R0)