Simulation study of a digital hydraulic independent metering valve system on an excavator
Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review
|Title of host publication||The 15th Scandinavian International Conference on Fluid Power|
|Publisher||Linköping University Electronic Press|
|Publication status||Published - 7 Jun 2017|
|Publication type||A4 Article in a conference publication|
|Event||Scandinavian International Conference on Fluid Power - |
Duration: 1 Jan 1900 → …
|Name||Linköping Electronic Conference Proceedings|
|Conference||Scandinavian International Conference on Fluid Power|
|Period||1/01/00 → …|
The purpose of this study is to apply a D-IMV system to a midsize (20t) excavator and to study the differences in energy consumption of the working hydraulic system with four actuators. This paper presents the controller designed for the D-IMV and a simulation model for analysing the system. The energy consumption of the D-IMV is compared to the measured energy consumption of a state-of-the-art excavator with a load-sensing hydraulic system.
The Controller of the D-IMV system is realized with a sub-optimal mode control, so that instead of calculating and optimizing the total energy consumption of all possible mode combinations, simpler control logic is defined to remove the complex structure of the controller and ease the computational burden. Simulation study shows that the hydraulic input energy can be reduced 28-42% compared to a standard LS-controlled excavator. Detailed analysis of where the reduction emerges is presented.