ECU controlled intelligent lift axle dropping and lifting system for heavy trucks

T. Keleş, L. Güvenç, E. Altuğ*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


This paper reports the design and control of an automatic lift axle auto-drop system that is normally controlled manually by the driver. The goal of the automatic lift axle dropping system is to drop or lower one or more of the liftable axles of the truck automatically, based on loading and other conditions. In this paper, the experimental implementation of an AutoDrop system in a truck suspended with a compensating arm type mechanical suspension is presented. Axle weight estimation for a compensating arm type suspension has challenges because of the articulated nature of the suspension mechanism and the presence of a large hysteresis characteristic. This paper introduces an analysis and higher accuracy height sensor based estimation method for weight determination in axles with a compensating arm suspension. An improved algorithm is developed and the lift axle system operation is automated to satisfy the rules mentioned in EU Directive 1230/2012 EEC. The developed algorithm is coded and implemented using an electronic control unit mounted in the vehicle cabin. Experimental results are used to demonstrate the successful implementation of the developed algorithm.

Original languageEnglish
Pages (from-to)885-893
Number of pages9
JournalEngineering Science and Technology, an International Journal
Issue number3
Publication statusPublished - Jun 2019

Bibliographical note

Publisher Copyright:
© 2019 Karabuk University


This work has been funded by the Ministry of Science, Industry and Commerce of Turkey for a collaborative research project between Istanbul Okan University, Istanbul Technical University and Ford Otosan through SANTEZ Project 00905.STZ.2011–1 . The work presented here is based partially on the thesis of the first author. The authors would like to thank Osman Uğur Acar who was the other graduate student who took part in the early phase of this work.

FundersFunder number
Ford Otosan00905
Istanbul Okan University
Ministry of Science, Industry and Commerce of Turkey
Istanbul Teknik Üniversitesi


    • Auto-drop
    • Lift axle dropping
    • Truck suspension


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