Skip to main content
SpringerLink
Log in

Effects of FTP-75 mode vehicle fuel economy improvement due to types of power steering system

  • Published:
International Journal of Automotive Technology Aims and scope Submit manuscript

Abstract

This paper focuses on fuel economy improvement according to the type of power steering system. Usually, a conventional power steering system is directly driven by the crankshaft of the engine with a belt, known as HPS (hydraulic power steering). However, there is some inefficiency with this system at high engine speeds. To improve this inefficiency, automobile makers have developed two power steering systems: EHPS (electro-hydraulic power steering) and MDPS (motor-driven power steering) or EPS (electric powered steering). However, there has been insufficient study of effects of the type of power steering system on fuel economy. In this paper, the effect of the type of power steering system on fuel economy is studied experimentally, and calculations of the effect on vehicle fuel economy are presenting using computer simulation with AVL cruise software. The results demonstrate that a 1% vehicle fuel economy improvement can be achieved in a vehicle with an electro-hydraulic power steering system compared to a vehicle with a hydraulic power steering system. In addition, a 1.7% vehicle fuel economy improvement can be achieved using a full electric power steering system in a FTP-75 driving cycle. These results could be used to choose a power steering system.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

Abbreviations

P b :

brake power [kW]

P i :

indicated power [kW]

P p :

pumping power [kW]

P ef :

engine friction power [kW]

P acc :

accessories consumption power [kW]

P motor :

motor consumption power [kW]

P HPP :

hydraulic pump consumption power [kW]

P alt :

alternator consumption power [kW]

Ω F :

engine angular velocity [rev/s]

p cyl :

cylinder pressure [kPa]

V cyl :

cylinder volume [m3]

V bat :

battery voltage [V]

I motor :

motor current [A]

References

  • Bröcker, M. (2006). New control algorithms for steering feel improvements of an electric powered steering system with belt drive. Vehicle System Dynamics, 44, 759–769.

    Article  Google Scholar 

  • Forbes, J. E., Baird, S. M. and Weisgerber, T. W. (1987). Electrohydraulic power steering-an advanced system for unique applications. SAE Paper No. 870574.

  • Giannelli, R. A., Nam, E. K., Hemler, K. and Barth, M. (2005). Heavy-duty diesel vehicle fuel consumption modeling based on road load an powertrain parameters. SAE Paper No. 2005-01-3549.

  • Inaguma, Y., Suzuki, K. and Haga, K. (1996). An energy saving technique in an electro-hydraulic power steering (EHPS) system. SAE Trans. 105,6, 1169–1176.

    Google Scholar 

  • Jo, S. H., Nam, K. W. and Kwon, O. S. (2006). Fuel consuming reduction by power steering system optimization. Trans. Korean Society of Automotive Engineers 14,3, 119–124.

    Google Scholar 

  • Jonokuchi, H. (2005). Technical trends of hydraulic-electric power steering systems. Koyo Engineering J. English Edition, Paper No. 166E.

  • Kim, N. K., Han, C. H., Kim, W. S., Lee, J. H., Park, J. I. and Park, K. S. (2006). Effect of the power steering system driving torque on vehicle fuel economy in a passenger car. Trans. Korean Society of Automotive Engineers 14,1, 60–67.

    Google Scholar 

  • Lyu, M. S. (2006). Optimization on vehicle fuel consumption in a highway bus using vehicle simulation. Int. J. Automotive Technology 7,7, 841–846.

    Google Scholar 

  • Song, H. B., Yoo, J. C., Lee, J. H. and Park, K. S. (2003). Prediction of vehicle fuel consumption on a component basis. Trans. Korean Society of Automotive Engineers 11,2, 203–210.

    Google Scholar 

  • Yoo, J. C., Song, H. B., Lee, J. H., Yoo, J. S., Park, Y. M. and Park, K. S. (2004). An experimental study on breakdown of fuel consumption on a component basis in a gasoline engine vehicle. Trans. Korean Society of Automotive Engineers 12,1, 153–161.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Graduate School of Ajou University, Gyeonggi, 443-749, Korea

    H. S. Wi & Y. K. Lee

  2. School of Mechanical Engineering, Ajou University, Gyeonggi, 443-749, Korea

    J. I. Park & J. H. Lee

  3. School of Mechanical Engineering, Kumoh National Institute of Technology, Gyeongbuk, 730-701, Korea

    K. S. Park

Authors
  1. H. S. Wi
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Y. K. Lee
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. J. I. Park
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. J. H. Lee
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. K. S. Park
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to J. I. Park.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Wi, H.S., Lee, Y.K., Park, J.I. et al. Effects of FTP-75 mode vehicle fuel economy improvement due to types of power steering system. Int.J Automot. Technol. 10, 771–776 (2009). https://doi.org/10.1007/s12239-009-0090-5

Download citation

  • Received:

  • Revised:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s12239-009-0090-5

Key Words

Search

Navigation