Algorithm Design for the Novel Mechatronics Electro-Hydraulic Driving System: Micro-Independent Metering

Abuowda, Karem; Noroozi, Siamak; Dupac, Mihai; Godfrey, Phil

doi:10.1109/icmech.2019.8722851

Cited by 4 publications

(4 citation statements)

References 16 publications

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“…Lyu et al [18] proposed a high-performance adaptive robust control strategy and proved the feasibility of the proposed control strategy and the accuracy of system response through experiments, where the independent metering system comprising four 2/2 proportional valves and two 2/2 directional valves served as the research object. Abuowda et al [19] proposed a new control strategy to realize the switching between different modes by taking the independent metering system composed of four-stepped rotary valves as the research object. Nguyen et al [20] combined pump control with an independent metering system, adopted the control strategy of speed feedforward and position feedback, and designed the switching mode of the system to increase the accuracy and energy-saving of the system response.…”

Section: Control Strategymentioning

confidence: 99%

Research on Design and Control Strategy of Novel Independent Metering System

Yang,

Li,

Zhong

et al. 2023

Sustainability

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The independent metering system used in the combination of traditional cartridge proportional valves employs an excessive number of components, which increases the complexity of the control strategy. To address this problem, a novel independent metering system based on pilot hydraulic control was developed. Following the pressure and flow requirements, the structure and valve body size of the two spools were designed. The effect of the parameter change in the control valve on the dynamic response characteristics of the main spool was investigated by simulation. A control strategy was developed based on load force direction prediction and two-chamber pressure switching to verify the feasibility of working mode switching during load direction change. As indicated by the results, compared with the mode switching control strategy of the traditional independent metering system, the proposed control strategy could effectively reduce the number of mode switching and ensure the continuity of the actuator operation. Compared with the traditional load-sensitive valve control system, the proposed pilot-controlled independent metering system achieved an average energy-saving efficiency of 47.27%. This study provides technical reference for the low energy consumption, high efficiency, and sustainable development of hydraulic systems.

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Section: Control Strategymentioning

confidence: 99%

Research on Design and Control Strategy of Novel Independent Metering System

Yang,

Li,

Zhong

et al. 2023

Sustainability

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“…The MIM control algorithm aims to control the velocity of the actuator which could be a cylinder or a motor. 42 Besides, it saves the system energy by implementing the regeneration modes, which are HSRE, LSRE and LSRR. The flowchart diagram of the MIM algorithm is shown in Figure 5, it starts by defining the resolution degree.…”

Section: Mim Control Systemmentioning

confidence: 99%

“…34 Based on this review, it is obvious that the current trend of research and development is to introduce new control methods or techniques, which reduces some shortcomings using the traditional types of control valves. At the same time, there is a new trend to use rotary type valves similar with the one shown in Figure 1 (for more information see other works [35][36][37] ). This valve can be used to develop a programmable configuration of the IM system.…”

Section: Introductionmentioning

confidence: 98%

Mathematical‐based control method and performance analysis of a novel hydromechatronics driving system micro‐independent metering

Abuowda¹,

Dupac

Noroozi

et al. 2020

Math Methods in App Sciences

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This paper aims to investigate the performance of a hydraulic actuator controlled by the novel system micro-independent metering (MIM). This analysis has been performed by comparing the models of two systems which are the traditional independent metering, that depends on poppet valve, and the new hydro-mechatronics system micro-independent metering, that relies on a stepped rotary flow control valve. In general, independent metering is a hydraulic control system which guarantees a separation between the meter-in and the meter-out of the hydraulic actuator.A Valvistor valve, a special type of Poppet valves, was developed to be embedded into the independent metering (IM) system. This valve has controllability and stability shortcomings which prevent the system from spreading in the industrial applications. The Valvistor valve performance is highly affected by the fluid disturbances because the fluid is considered as a part of its control elements. A stepped rotary flow control valve has been developed to control hydraulic flow rate. The valve composed of a rotary orifice attached to a stepper motor. Using this valve instead of the traditional poppet type has led to a new configuration, that is termed by micro-independent metering. This form improves the hydraulic cylinder velocity performance by rejecting the fluid disturbances effect on the control circuit.

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“…In addition, a regeneration mode in the CIMV system operates without a flow from the pump. Thus, the energy consumption of the CIMV system is lower than that of the conventional excavator, which has been proven by numerous research projects and patents [21][22][23][24][25][26]. However, controlling four proportional valves is not simple when they depend on a pressure difference between the inlet and outlet of the valves, which leads to poor performance in valve control.…”

Section: Introductionmentioning

confidence: 99%

A Study on a New Independent Metering Valve for Hydraulic Boom Excavator

2022

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Nowadays, hydraulic excavators are an indispensable part of the construction industry; however, conventional hydraulic excavators consume a great deal of fossil fuel and release a large amount of pollution emissions into the environment. This causes many unwanted costs, therefore, effective solutions are required to solve the above-mentioned problems. In this paper, a new independent metering system is proposed to improve energy-saving and reduce costs of a conventional system. In detail, a directional valve is used to control movement and three electro-hydraulic poppet valves are integrated to adjust the flow rate at the inlet and outlet ports of the boom cylinder. In addition, a control strategy based on the coordination between the speed of the pump and the opening area of the spool valve is designed to improve the performance of the system. Specifically, the valves are controlled based on the strategy that the meter-in valve is opened fully to reduce throttling losses and that the meter-out valve is controlled to reduce leakage. The speed of the pump is adjusted according to the feedback position signal. To demonstrate the effectiveness of the new configuration, a real test bench of the boom system was built under laboratory conditions. From the experimental results, the new independent metering valve system not only works with a high tracking precision, but it also reduces energy consumption. Compared with a conventional independent metering system, the fuel economy of the proposed structure can achieve a reduction of approximately 6.5%.

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Algorithm Design for the Novel Mechatronics Electro-Hydraulic Driving System: Micro-Independent Metering

Cited by 4 publications

References 16 publications

Research on Design and Control Strategy of Novel Independent Metering System

Research on Design and Control Strategy of Novel Independent Metering System

Mathematical‐based control method and performance analysis of a novel hydromechatronics driving system micro‐independent metering

A Study on a New Independent Metering Valve for Hydraulic Boom Excavator

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