Adaptive Identification and Application of Flow Mapping and Inverse Flow Mapping for Electrohydraulic Valves

Authors

  • Jianbin Liu Institute of Mechatronic Engineering – Chair of Fluid-Mechatronic Systems, Technical University of Dresden, Germany https://orcid.org/0000-0003-4637-8351
  • André Sitte Institute of Mechatronic Engineering – Chair of Fluid-Mechatronic Systems, Technical University of Dresden, Germany https://orcid.org/0000-0003-0981-7239
  • Jürgen Weber Institute of Mechatronic Engineering – Chair of Fluid-Mechatronic Systems, Technical University of Dresden, Germany https://orcid.org/0000-0001-7888-3550

DOI:

https://doi.org/10.13052/ijfp1439-9776.2315

Keywords:

identification, flow mapping, inverse flow mapping, electrohydraulic valve, LS, BP, RBF, GRNN, LSSVM, RLS

Abstract

Good estimation of flow mapping (FM) and inverse flow mapping (IFM) for electrohydraulic valves are important in automation of fluid power system. The purpose of this paper is to propose adaptive identification methods based on LSM, BPNN, RBFNN, GRNN, LSSVM and RLSM to estimate the uncertain structure and parameters in flow mapping and inverse flow mapping for electrohydraulic valves. In order to reduce the complexity and improve the identification performance, model structures derived from new algorithm are introduced. The above identification methods are applied to map the flow characteristic of an electrohydraulic valve. With the help of novel simulation architecture via OPC UA, the accuracy and efficiency of these algorithms could be verified. Some issues like invertibility of flow mapping are discussed. At last, places and suggestions to apply these methods are made.

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Author Biographies

Jianbin Liu, Institute of Mechatronic Engineering – Chair of Fluid-Mechatronic Systems, Technical University of Dresden, Germany

Jianbin Liu received the dual B.Sc. in mechanical engineering and economics from Southwest Jiaotong University (SWJTU) in 2011, and his Diploma degree in institute of mechatronic Engineering from TU Dresden in 2016. He is a research assistant for mobile hydraulics and pursuing his PhD degree at Chair of Fluid-Mechatronic Systems (Fluidtronics), TU Dresden, Germany. His research activities focus on drives and controls for mobile working machines, like agriculture and construction vehicles. His research interests include the system identification, numerical simulation, software and control strategies development, algorithm research and improvement of mobile machines performance.

André Sitte, Institute of Mechatronic Engineering – Chair of Fluid-Mechatronic Systems, Technical University of Dresden, Germany

André Sitte received his Diploma degree in institute of mechatronic Engineering from TU Dresden in 2010. He is a team leader for mobile hydraulics and system integration and pursuing his PhD degree at Chair of Fluid-Mechatronic Systems (Fluidtronics), TU Dresden, Germany. His research activities focus on system control and integration for mobile working machines, like communal and construction vehicles. His research interests include special manufacturing methods, robotics, control theory, modeling and simulation, multi-body dynamics, system integration. He has authored more than 8 influential journal and international conference papers, especially in the independent metering control area.

Jürgen Weber, Institute of Mechatronic Engineering – Chair of Fluid-Mechatronic Systems, Technical University of Dresden, Germany

Jürgen Weber had studied mechanical engineering at the TU Dresden, and successfully finished his doctorate in 1991. Until 1997, he was the active senior engineer at the former chair of Hydraulics and Pneumatics. This was followed by an approximately 13-year industrial phase. He was active in various positions at the R&D department of the agricultural and construction machinery manufacturer CNH. Besides his occupation as the head of the Department Hydraulics and design manager for mobile and tracked excavators, starting in 2002, he took on responsibility for the hydraulics in construction machinery at CNH worldwide. From 2006 onward, he was the global head of architecture for hydraulic drive and control systems, system integration and advance development of CNH construction machinery. March 1st, 2010, Dr.-Ing. Jürgen Weber has been appointed university professor and chair of Fluid-Mechatronic System Technology at the TU Dresden, and simultaneously took on the leadership of the Institute of Fluid Power. Since 1.7.2018 he is the leader of the Institute of Mechatronic Engineering.

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Published

2021-11-20

Issue

Section

SICFP 2021