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, Volume 9, Issue 3, pp 44–49 | Cite as

Hydraulic Hybrid Architecture for Excavators

  • Roland Leifeld
  • Milos Vukovic
  • Hubertus Murrenhoff
Hydraulic

Most excavator drivetrain architectures continue to be based on the interaction between the hydraulics and engine. A comprehensive analysis of the loss mechanisms provides new ways to optimise the energy efficiency and performance. Within the scope of a publically fundend project, the IFAS at the RWTH Aachen University has spent the last three years developing a hydraulic hybrid architecture for excavators. The system has been implemented in an 18 t wheeled excavator and recently validated in field tests.

Motivation

Due to the wide range of applications excavators are used in a number of different system configurations exists. Each has seen its own special evolution depending on the users’ needs and applications’ demand. Among others these include precision control, robust components and systems, low costs and of course energy efficiency. Depending on the machine class and the daily tasks, the importance of each of these requirements changes. As a result, manufacturers offer a...

Keywords

Fuel Consumption Engine Speed Supply Pressure Prototype Machine Optimal Fuel Consumption 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Thanks

The validation of the Steam system is funded by the Federal Ministry of Education and Research (BMBF) within the program Validation of the Innovation Potential of Scientific Research (VIP). The authors thank the BMBF for funding. Finally, thanks goes to Volvo Construction Equipment, especially to Ulrich Faß and Heiko Steinbach, for not only providing the test excavator but also for their valuable input and support throughout the project.

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Copyright information

© Sringer Fachmedien Wiesbaden 2016

Authors and Affiliations

  • Roland Leifeld
    • 1
  • Milos Vukovic
    • 1
  • Hubertus Murrenhoff
    • 1
  1. 1.RWTH AachenAachenGermany

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