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International Journal of Automotive Technology

, Volume 19, Issue 5, pp 783–794 | Cite as

Effects of Injection Timing on Transient Performance of A Regulated Two-Stage Turbocharged Diesel Engine with Turbine Bypass Valve

  • Zhong Chang Liu
  • Xing Yuan
  • Jing Tian
  • Yong Qiang Han
  • Kai Bo Yu
  • Peng Kun Teng
Article
  • 12 Downloads

Abstract

The object of this paper is to reduce soot emissions under typical 5s transient conditions of constant speed and increasing torque. And effects of fuel injection timing on combustion and emissions parameters were experimentally and numerically studied in a regulated two-stage turbocharged diesel engine with a turbine bypass valve (TBV). The test results indicated that: the smaller TBV opening could improve deterioration of smoke emissions and BSFC at medium and heavy loads. Afterward, the full-stage injection timing (FSIT) strategies (delaying injection timing during the entire transient process) could reduce soot and NOX emissions simultaneously. However, when TBV opening became larger, smoke emissions and BSFC were deteriorated gradually. Moreover, the sectional-stage injection timing (SSIT) strategies (advancing injection timing from 10 % load to a preset load and delaying injection timing from the preset load to 100 % load) could markedly reduce soot emissions by 75.8 % with TBV opening 20 %; the degradation of fuel consumption could be effectively suppressed. Finally, coupling the SSIT strategies with the TBV control strategies could significantly improve the transient performance.

Key words

Diesel engine Two-stage turbocharger Transient operation Full-stage injection timing Sectional-stage injection timing 

Abbreviation

TBV

turbine bypass valve

OIT

original injection timing

FSIT

full-stage injection timing

SSIT

sectional-stage injection timing

ECU

electronic control unit

DAC

digital to analog converter

ADC

analog to digital converter

rpm

revolutions per minute

°CA

degrees of crank angle

BSFC

brake specific fuel consumption

Pmax

maximum cylinder pressure

CA10

crank angle location of 10 % mass burned

CA50

crank angle location of 50 % mass burned

AFR

air-fuel ratio

ppm

parts per million (by volume)

NOX

nitrogen oxides

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References

  1. Agarwal, A. K., Dhar, A., Gupta, J. G., Kim, W. I., Choi, K., Lee, C. S. and Park, S. (2015). Effect of fuel injection pressure and injection timing of Karanja biodiesel blends on fuel spray, engine performance, emissions and combustion characteristics. Energy Conversion and Management, 91, 302–314.CrossRefGoogle Scholar
  2. Agarwal, A. K., Dhar, A., Gupta, J. G., Kim, W. I., Lee, C. S. and Park, S. W. (2014). Effect of fuel injection pressure and injection timing on spray characteristics and particulate sizenumber distribution in a biodiesel fuelled common rail direct injection diesel engine. Applied Energy, 130, 212–221.CrossRefGoogle Scholar
  3. Agarwal, A. K., Srivastava, D. K., Dhar, A., Maurya, R. K., Shukla, P. C. and Singh, A. P. (2013). Effect of fuel injection timing and pressure on combustion, emissions and performance characteristics of a single cylinder diesel engine. Fuel, 111, 374–383.CrossRefGoogle Scholar
  4. Bai, Y., Fan, L. Y., Ma, X. Z., Peng, H. L. and Song, E. Z. (2016). Effect of injector parameters on the injection quantity of common rail injection system for diesel engines. Int. J. Automotive Technology 17, 14, 567–579.CrossRefGoogle Scholar
  5. Eom, D. S., Kang, S. H. and Lee, S. W. (2017). Nanoparticle emission characteristics and reduction strategies by boost pressure control and injection strategies in a passenger diesel engine. Int. J. Automotive Technology 18, 1, 1–17.CrossRefGoogle Scholar
  6. Galindo, J., Climent, H., Guardiola, C. and Doménech, J. (2009). Strategies for improving the mode transition in a sequential parallel turbocharged automotive diesel engine. Int. J. Automotive Technology 10, 2, 141–149.CrossRefGoogle Scholar
  7. Gandhi, N., Gokhale, N., Aghav, Y. and Kumar, M. N. (2012). Development of two stage turbo-charging for medium duty diesel engine of power generation application. SAE Paper No. 2012–28–0007.Google Scholar
  8. Giakoumis, E. G. and Lioutas, S. C. (2010). Diesel-engined vehicle nitric oxide and soot emissions during the European light-duty driving cycle using a transient mapping approach. Transportation Research Part D: Transport and Environment 15, 3, 134–143.CrossRefGoogle Scholar
  9. Giakoumis, E. G., Rakopoulos, C. D., Dimaratos, A. M. and Rakopoulos, D. C. (2013). Exhaust emissions with ethanol or n-butanol diesel fuel blends during transient operation: A review. Renewable and Sustainable Energy Reviews, 17, 170–190.CrossRefGoogle Scholar
  10. Han, J., Lee, J., Oh, Y., Cho, G. and Kim, H. (2017). Effect of UWS injection at low exhaust gas temperature on NOx removal efficiency of diesel engine. Int. J. Automotive Technology 18, 6, 951–957.CrossRefGoogle Scholar
  11. Han, Y. Q., Zhang, L. P., Liu, Z. C. and Tian, J. (2016). Investigation of transient deterioration mechanism and improved method for turbocharged diesel engine. Energy 116, Part1, 250–264.CrossRefGoogle Scholar
  12. Kim, H. J., Su, H. P. and Chang, S. L. (2016). Impact of fuel spray angles and injection timing on the combustion and emission characteristics of a high-speed diesel engine. Energy, 107, 572–579.CrossRefGoogle Scholar
  13. Leahu, C. I. (2015). Improvement of exhaust gas pressure’s utilization for compressing the intake air in diesel engine’s cylinders. Int. J. Automotive Technology 16, 6, 913–921.CrossRefGoogle Scholar
  14. Lee, S., Choi, H. and Min, K. (2017). Reduction of engine emissions via a real-time engine combustion control with an EGR rate estimation model. Int. J. Automotive Technology 18, 4, 571–578.CrossRefGoogle Scholar
  15. Li, X. L., Xu, Z., Guan, C. and Huang, Z. (2014). Effect of injection timing on particle size distribution from a diesel engine. Fuel, 134, 189–195.CrossRefGoogle Scholar
  16. Liu, Z. C., Yu, K. B., Tian, J., Han, Y. Q., Qi, S. L. and Teng, P. K. (2017). Influence of rail pressure on a twostage turbocharged heavy-duty diesel engine under transient operation. Int. J. Automotive Technology 18, 1, 19–29.CrossRefGoogle Scholar
  17. Nilsson, T., Froberg, A. and Aslund, J. (2012). Optimal operation of a turbocharged diesel engine during transients. SAE Paper No. 2012–01–0711.Google Scholar
  18. Rakopoulos, C. D., Dimaratos, A. M., Giakoumis, E. G. and Rakopoulos, D. C. (2009). Evaluation of the effect of engine, load and turbocharger parameters on transient emissions of diesel engine. Energy Conversion and Management 50, 9, 2381–2393.CrossRefGoogle Scholar
  19. Sayin, C., Ilhan, M., Canakci, M. and Gumus, M. (2009). Effect of injection timing on the exhaust emissions of a diesel engine using diesel-methanol blends. Renewable Energy 34, 5, 1261–1269.CrossRefGoogle Scholar
  20. Serrano, J. R., Arnau, F. J., Dolz, V., Tiseira, A., Lejeune, M. and Auffret, N. (2008). Analysis of the capabilities of a two-stage turbocharging system to fulfil the US2007 anti-pollution directive for heavy duty diesel engines. Int. J. Automotive Technology 9, 3, 277–288.CrossRefGoogle Scholar
  21. Shi, L., Li, H. L., Zhang, H. Y., Mao, X. J., Deng, K. Y., Liu, B. and Hua, L. (2015). The effect of bypass valve control on the steady-state and transient performance of diesel engines with regulated two-stage turbocharging system. SAE Paper No. 2015–01–1987.CrossRefGoogle Scholar
  22. Tumbal, A. V., Banapurmath, N. R. and Tewari, P. G. (2016). Effect of injection timing, injector opening pressure, injector nozzle geometry, and swirl on the performance of a direct injection, compression-ignition engine fuelled with honge oil methyl ester (HOME). Int. J. Automotive Technology 17, 1, 35–50.CrossRefGoogle Scholar
  23. Watel, E., Pagot, A., Pacaud, P. and Schmitt, J. (2010). Matching and evaluating methods for euro 6 and efficient two-stage turbocharging diesel engine. SAE Paper No. 2010–01–1229.CrossRefGoogle Scholar
  24. Winkler, N. and Ångström, H. (2008). Simulations and measurements of a two-stage turbocharged heavy-duty diesel engine including EGR in transient operation. SAE Paper No. 2008–01–0539.CrossRefGoogle Scholar
  25. Zhang, L. P., Liu, Z. C., Tian, J. and Sun, S. J. (2014). Investigation of the combustion deterioration of an automotive diesel engine under transient operation. Science China Technological Sciences 57, 3, 480–488.CrossRefGoogle Scholar
  26. Zhang, R. and Kook, S. (2014). Influence of fuel injection timing and pressure on in-flame soot particles in an automotive-size diesel engine. Environmental Science & Technology 48, 14, 8243–8250.CrossRefGoogle Scholar
  27. Zhao, R. C., Zhuge, W. L., Zhang, Y. J., Yang, M. Y., Ricardo, M. B. and Yin, Y. (2015). Study of two-stage turbine characteristic and its influence on turbocompound engine performance. Energy Conversion and Management, 95, 414–423.CrossRefGoogle Scholar

Copyright information

© The Korean Society of Automotive Engineers and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Zhong Chang Liu
    • 1
  • Xing Yuan
    • 1
  • Jing Tian
    • 1
  • Yong Qiang Han
    • 1
  • Kai Bo Yu
    • 1
  • Peng Kun Teng
    • 1
  1. 1.State Key Laboratory of Automotive Simulation and ControlJilin UniversityChangchunChina

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