An Energy-Saving Pressure-Compensated Hydraulic System With Electrical Approach

Wang, Tao; Wang, Qingfeng

doi:10.1109/tmech.2013.2250296

Cited by 92 publications

(39 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…3. Hardware addition: The addition of components for storing and recovering energy [20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36].…”

Section: Robot Typementioning

confidence: 99%

“…In [11], a robotic system based on a parallel mechanism with redundant actuation is evaluated, showing possibilities to reduce electric power loss, peak torque of actuating joints and friction loss. [4] 2001 Conference paper Robot type --3-DoFs parallel manipulator and serial manipulator [5] 2014 Conference paper Robot type --Underactuated serial kinematics [11] 2015 Journal paper Robot type --Parallel manipulator with redundant actuation [19] 2015 Conference paper Robot type --Parallel manipulator with redundant actuation (3RRR) [15] 2010 Review Replacement Electric actuator -Generic mechatronic system [17] 2009 Journal paper Replacement Pneumatic -Generic pneumatic system [7] 2002 Conference paper Replacement Reduction of components weight Lighter arms Redundant serial robot (7 DoFs) [18] 2016 Conference paper Replacement Reduction of components weight Lighter arms Serial robot (5 DoFs) [1] 2007 Journal paper Replacement Reduction of components weight Lighter joints Redundant serial robot (7 DoFs) [6] 2008 Journal paper Replacement Reduction of components weight Lighter joints Redundant serial robot (7 DoFs) [2] 2016 Conference paper Replacement Moving the actuators at the base -Serial robot (3 DoFs) [10] 2015 Conference paper Replacement Moving the actuators at the base -Elbow joint (1 DoF) wrist joint (3 DoFs) [12] 1993 Journal paper Replacement Moving the actuators at the base -Redundant serial robot (7 DoFs) [16] 2012 Journal paper Replacement Moving the actuators at the base -Underactuated serial kinematics [20] 2015 Conference paper Addition Energy-storing devices Flywheel Serial robot (6 DoFs)-ABB IRB 140 [21] 2011 Conference paper Addition Energy-storing devices Flywheel Serial robot (3 DoFs)-crane [22] 2012 Conference paper Addition Energy-storing devices Hydraulic Generic hydraulic system [23] 2014 Journal paper Addition Energy-storing devices Hydraulic Generic hydraulic system [24] 2011 Conference paper Addition Energy-storing devices Pneumatic Hybrid pneumatic/electric system [25] 2016 Conference paper Addition Energy-storing devices Pneumatic Generic pneumatic system [26] 2013 Conference paper Addition Energy-storing devices Several Generic mechatronic system [27] 2011 Conference paper Addition Energy-storing devices Supercapacitor Mechatronic system (1 DoF)-elevator [28] 1997 Conference pap...…”

Section: Robot Typementioning

confidence: 99%

“…The main idea behind these devices is to harvest the energy during the braking phase-which is usually wasted-store it, and provide it back to the system when necessary [20][21][22][23][24][25][26][27][28][29][30][31][32]. Two different types are considered and analyzed: (1) the type of energy-storing devices used, and (2) energy-sharing via the interaction between actuators exchanging energy in a multi-actuator system.…”

Section: Hardware Addition: Energy Storing and Recoveringmentioning

confidence: 99%

See 2 more Smart Citations

A Review on Energy-Saving Optimization Methods for Robotic and Automatic Systems

2017

View full text Add to dashboard Cite

Abstract:In the last decades, increasing energy prices and growing environmental awareness have driven engineers and scientists to find new solutions for reducing energy consumption in manufacturing. Although many processes of a high energy consumption (e.g., chemical, heating, etc.) are considered to have reached high levels of efficiency, this is not the case for many other industrial manufacturing activities. Indeed, this is the case for robotic and automatic systems, for which, in the past, the minimization of energy demand was not considered a design objective. The proper design and operation of industrial robots and automation systems represent a great opportunity for reducing energy consumption in the industry, for example, by the substitution with more efficient systems and the energy optimization of operation. This review paper classifies and analyses several methodologies and technologies that have been developed with the aim of providing a reference of existing methods, techniques and technologies for enhancing the energy performance of industrial robotic and mechatronic systems. Hardware and software methods, including several subcategories, are considered and compared, and emerging ideas and possible future perspectives are discussed.

show abstract

“…3. Hardware addition: The addition of components for storing and recovering energy [20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36].…”

Section: Robot Typementioning

confidence: 99%

Section: Robot Typementioning

confidence: 99%

Section: Hardware Addition: Energy Storing and Recoveringmentioning

confidence: 99%

See 1 more Smart Citation

A Review on Energy-Saving Optimization Methods for Robotic and Automatic Systems

2017

View full text Add to dashboard Cite

show abstract

“…This can be overcome by using advanced control methods or by improving the performance of water hydraulic devices. Very important challenge for not only water hydraulics but also oil hydraulics is low energy efficiency of hydraulic systems, from 6% -40% for oil hydraulics depending on applications 1) and even lower in water hydraulics.…”

Section: Introductionmentioning

confidence: 99%

Energy Saving for Water Hydraulic Pushing Cylinder in Meat Slicer

Pham

Ito

Ikeo

2017

JFPS International Journal of Fluid Power System

View full text Add to dashboard Cite

Water hydraulics is developed toward widening application especially in food processing systems. Water hydraulic pushing cylinder system used in meat slicer is recently paid attention by both academic and industrial researchers in Japan. Due to very fast working cycle (0.5-1 seconds per cycle corresponding to 120-60 meat slices per minute), in conventional systems, methods to make a supply pressure track a load pressure for saving energy cannot be used. Supply pressure is normally set around a constant value by a relief valve. Thus, the energy loss in such system is huge because of much surplus supply pressure. This research introduces a novel energy-saving water hydraulic pushing cylinder system in meat slicer, which uses a 2/2 flow control valve for controlling the pressure in high-pressure chamber of the cylinder and 3 On/Off valves mainly for adjusting working direction of the piston rod. This system made the supply pressure nearly equal to the load pressure. As a result, the energy consumption reduced much, the reduction is approximately 50% based on the simulation result and control performance is acceptable.

show abstract

“…Ho and Ahn [7] presented a novel hydraulic energy regenerative system based on a closed-loop hydrostatic transmission using a hydraulic accumulator as storage device to recover the kinetic energy of the load. Wang et al [8] analyzed an innovative regeneration device which consists of an electric generator and a hydraulic motor, used to replace the traditional hydraulic compensator in order to obtain a more efficient hydraulic system. Joo and Stangl [9] presented the application of a power regenerative boom (PRB) system to an excavator of large size; the circuit solution is quite similar to that proposed by the authors, but it requires the presence of a dedicated hydraulic motor to support the engine while in the solution proposed in this paper the pilot pump is used as motor and therefore a dedicated motor is not required.…”

Section: Introductionmentioning

confidence: 99%

Hydraulic Hybrid Excavator—Mathematical Model Validation and Energy Analysis

et al. 2016

View full text Add to dashboard Cite

Recent demands to reduce pollutant emissions and improve energy efficiency have driven the implementation of hybrid solutions in mobile machinery. This paper presents the results of a numerical and experimental analysis conducted on a hydraulic hybrid excavator (HHE). The machinery under study is a middle size excavator, whose standard version was modified with the introduction of an energy recovery system (ERS). The proposed ERS layout was designed to recover the potential energy of the boom, using a hydraulic accumulator as a storage device. The recovered energy is utilized through the pilot pump of the machinery which operates as a motor, thus reducing the torque required from the internal combustion engine (ICE). The analysis reported in this paper validates the HHE model by comparing numerical and experimental data in terms of hydraulic and mechanical variables and fuel consumption. The mathematical model shows its capability to reproduce the realistic operating conditions of the realized prototype, tested on the field. A detailed energy analysis comparison between the standard and the hybrid excavator models was carried out to evaluate the energy flows along the system, showing advantages, weaknesses and possibilities to further improve the machinery efficiency. Finally, the fuel consumption estimated by the model and that measured during the experiments are presented to highlight the fuel saving percentages. The HHE model is an important starting point for the development of other energy saving solutions.

show abstract

An Energy-Saving Pressure-Compensated Hydraulic System With Electrical Approach

Cited by 92 publications

References 19 publications

A Review on Energy-Saving Optimization Methods for Robotic and Automatic Systems

A Review on Energy-Saving Optimization Methods for Robotic and Automatic Systems

Energy Saving for Water Hydraulic Pushing Cylinder in Meat Slicer

Hydraulic Hybrid Excavator—Mathematical Model Validation and Energy Analysis

Contact Info

Product

Resources

About