The potential energy or kinetic energy of an actuator can be converted to electric energy by using a generator and saved in energy storage unit. A hydraulic hybrid excavator uses a hydraulic ...
Learn MoreChowdhury P, Das D, Truong B, et al. Research on energy regeneration and effect of dynamic characteristics of secondary control swing for hydraulic excavator system. In: 15th international conference on control, automation and …
Learn MoreIn hydraulic systems, energy recovery (ER) is another energy saving method which can be realized by using hydraulic or electrical energy storage devices. The hydraulic approach is to convert the recoverable energy to hydraulic form, store it in a hydraulic accumulator and release it when there are requirements [7], [8], [9].
Learn MoreSome of the options for energy storage in energy regeneration Energies 2020, 13 devices include flywheels, compressed air, electrical energy storage systems (EESS), and hydraulic energy storage ...
Learn MoreIn this paper, a novel series hybrid hydraulic excavator based on electro-hydraulic composite energy storage, which provides the average power of the system through the diesel engine, and the ...
Learn MoreIn a hydraulic ERR system, a hydraulic accumulator with compressed nitrogen serves as the storage unit [12], which absorbs recoverable energy from the hydraulic actuator. Under the recovery condition, pressure oil discharged from the actuator is charged into the hydraulic accumulator [13].
Learn MoreMost hydraulic excavators use passive power control to adjust the engine speed according to the load torque to achieve power matching, which has very limited effectiveness in …
Learn MoreBedotti et al. described several different methods to reduce losses, improve fuel-saving and energy recovery [8] as well as presented energy comparison of system layouts for a hydraulic excavator [9].
Learn MoreIt was applied to a 50-ton hydraulic excavator and it is reported that the fuel consumption for vertical lifting motion is about 37% ... by using hydraulic accumulators as energy storage devices ...
Learn MoreIn hydraulic ERS, accumulators serve as hydraulic energy storage devices as well as shock absorbers and standby power sources. Fig. 15 shows the …
Learn MoreThen, a hydraulic excavator energy saving system based on three-chamber accumulator is proposed, which can store and reuse the energy loss from throttling and overflow of the …
Learn MoreThen, a hydraulic excavator energy saving system based on three-chamber accumulator is proposed, which can store and reuse the energy loss from …
Learn MoreThe ESS (Energy Storage System) is very important in a hybrid system with ICE (Internal Combustion Engine) and motors/generators. Due to the different power …
Learn MoreEnergies 2022, 15, 4757 2 of 17 short time. Caterpillar [6] developed an accumulator-based energy recovery system that has been successfully used on a 50 t hydraulic excavator. The energy consumption is reduced by 37% when the boom rises through the variable
Learn MoreFor further improvement of energy efficiency, a novel architecture in which the hydraulic motor is installed between the boom cylinder and the main control valve was put forward by Yu et al. [20 ...
Learn MoreResearch on energy saving characteristics of large hydraulic excavator boom driven by dual hydraulic-gas energy storage cylinder J. Mech. Eng., 55 ( 20 ) ( 2019 ), pp. 240 - 248, 10.3901/JME.2019.20.240
Learn MoreIn this paper, a novel series hybrid hydraulic excavator based on electro-hydraulic composite energy storage, which provides the average power of the system …
Learn Morehydraulic potential energy recovery system with an accumulator as the energy storage element. The results showed that the potential energy recovery rate of the boom was 22.6%.
Learn MoreThe aim of this paper is to propose a new energy saving hybrid excavator using an electro-hydraulic circuit design driven by an electric motor/generator for the generation of potential energy ...
Learn Morewith the boom of excavator is proposed by Chen et al. [ 21] which employ a hydraulic accumulator as main energy storage. element fabricated in novel configuration with the aim of recov-. ering ...
Learn MoreHo and Ahn 2 proposed a novel hydraulic energy-regenerative system for excavator based on a closed-loop hydrostatic transmission hydraulic accumulator, …
Learn MoreThe energy saving system was tested on a 21.5-ton hydraulic excavator, and the results showed that the energy consumption of the boom lifting hydraulic circuit was reduced by 47.99 %, and the engine fuel consumption was reduced by 11.42 %.
Learn MoreThe energy saving system was tested on a 21.5-ton hydraulic excavator, and the results showed that the energy consumption of the boom lifting hydraulic circuit was reduced by 47.99 %, and the engine fuel consumption was reduced by 11.42 %.
Learn MoreIn this paper, a novel series hybrid hydraulic excavator based on electro-hydraulic composite energy storage, which provides the average power of the system through the diesel engine, and the...
Learn MoreTherefore, it will reduce the energy conversion link between the hydraulic energy and the electric energy, in comparison to the energy storage element of electric energy [15]. In order to achieve the volumetric speed control of the hydraulic system in this paper, the fuzzy PI self-tuning controller is developed to adjust the PMBLDC motor speed.
Learn MoreEnergy saving is an effective method to improve the efficiency of the hydraulic excavator. So, research on the energy saving of hydraulic excavators is very necessary and urgent. Ho and Ahn 2 proposed a novel hydraulic energy-regenerative system for excavator based on a closed-loop hydrostatic transmission hydraulic …
Learn MoreTo verify the effectiveness of this system, a real test bench based on a 6-ton hydraulic excavator was performed. The experimental results showed that 50.1% energy consumption of the boom and 64.9% peak power of the power source can be reduced in the proposed system compared with the double-chamber system.
Learn Morean energy recovery system (ERS) is an effective solution to improve energy efficiency for hydraulic excavators ... disclosed a 17 t wheel excavator using flywheel energy storage. The flywheel ...
Learn MoreA new control method of hydraulic excavator''s energy saving is put forward in this paper.According to the method,the load of excavator is estimated according to the output pressure of pump.Based on the result of the estimation of load,the speed control lever of diesel governor and the torque absorption of pump are controlled to ensure the diesel''s …
Learn MoreIn this paper, a novel series hybrid hydraulic excavator based on electro-hydraulic composite energy storage, which provides the average power of the system through the …
Learn MoreDOI: 10.1016/j.est.2023.108571 Corpus ID: 260790686 Research on energy saving system of hydraulic excavator based on three-chamber accumulator @article{Yang2023ResearchOE, title={Research on energy saving system of hydraulic excavator based on three ...
Learn MoreThe energy saving system was tested on a 21.5-ton hydraulic excavator, and the results showed that the energy consumption of the boom lifting hydraulic circuit was reduced by 47.99 %, and the engine fuel consumption was reduced by …
Learn MoreDue to the complex working condition and frequent load changing, the efficiency of the hydraulic excavator is low. The aim of this article is to propose a control strategy for energy recovery ...
Learn MoreThe energy saving system was tested on a 21.5-ton hydraulic excavator, and the results showed that the energy consumption of the boom lifting hydraulic circuit was reduced by 47.99 %, and the engine fuel consumption was reduced by 11.42 %.
Learn MoreAbstract. A novel energy regeneration swing system is proposed for hydraulic excavator in this paper to reduce the energy consumption. Two independent accumulators are proposed for use in the ...
Learn MoreAdvantages of high energy density of battery and high power density of hydraulic accumulator are synthetically utilized. A 7-ton crawler excavator is taken as the research object, according to typical load spectrum, through analysis method and modeling method, and using dynamic programming (DP) to optimize the parameters of the novel series …
Learn MoreThe energy storage system with higher power density, higher energy density, small size, long lifetime and low cost is essential for the hybrid system. This paper firstly analyzes the difference among the energy storing elements especially for battery and super capacitor (SC). Secondly, the advantages and disadvantages of different structures …
Learn MoreInvestigation and Optimization of Energy Consumption for Hybrid Hydraulic Excavator with an Innovative Powertrain.pdf Available via license: CC BY Content may be subject to copyright.
Learn More