Development of an optimized game controller for energy saving in a novel interconnected air suspension system

2020 ◽  
Vol 234 (13) ◽  
pp. 3068-3080 ◽  
Author(s):  
Hossein Nazemian ◽  
Masoud Masih-Tehrani
Keyword(s):  
Energy Consumption ◽  
Body Position ◽  
The Body ◽  
Air Pressure ◽  
Roll Angle ◽  
Compressed Air ◽  
Air Suspension ◽  
Game Controller ◽  
Minor Road ◽  
Reduction Of Energy Consumption

In this study, the focus is on reducing the energy that is consumed by a compressor for providing high air pressure in the reservoir. A new air suspension configuration is presented that is titled active interconnected air suspension with outsourced air pressure. In this configuration, a compressor is used to charge the tank; meanwhile, the air springs are connected. For minor excitation, first, the air flows between air springs to control roll angle and height adjustment. If the situation of body position gets worse, the compressed air tank compensates to keep the body not generating roll angle and bounce. This methodology has a benefit. This configuration conserves compressed air in the tank in minor road elevation. The optimized controllers are designed to control roll angle and bounce, but they determine the outsourced air mass flow rate. For switching between interconnection and outsourced mode, there are some rules defined based on game theory for a trade-off between high dynamical performance quality of the vehicle and reduction of energy consumption. The optimization is done on the rules to keep both aspects minimum as much as possible. A three-axle heavy truck is used, and its performance is under discussion on an uneven rough road. Roll angle is improved progressively in novel air suspension configuration, and the energy consumption is reduced. In the default condition, the roll angle is improved 72% from the passive case and 39% from the conventional configuration. Furthermore, the energy consumption optimized version reduces 14% from the non-optimized case and 46% from the outsourced mode. By importing road power spectral density type E and type G, as the short domain and high-frequency vibrations, to two sides of the truck, it is inferred that the vehicle could remain on interconnection mode entirely without using the compressor.

scholarly journals Energy Efficiency of Pneumatic Cylinder Control with Different Levels of Compressed Air Pressure and Clamping Cartridge

Energies ◽  
2020 ◽  
Vol 13 (14) ◽  
pp. 3711
Author(s):  
Vladislav Blagojevic ◽  
Dragan Seslija ◽  
Slobodan Dudic ◽  
Sasa Randjelovic
Keyword(s):  
Energy Consumption ◽  
Air Pressure ◽  
Compressed Air ◽  
Pneumatic Cylinder ◽  
Final Position ◽  
Return Stroke ◽  
Cylinder Piston ◽  
Reduce Energy Consumption ◽  
The Cost ◽  
Different Levels

Since pneumatic systems are widely used in various branches of industry, the need to find ways to reduce energy consumption in these systems has become very pressing. The reduction in energy consumption in these systems is reflected in the reduction of compressed air consumption. The paper presents a cylinder control system with a piston rod on one side, in which the reduction in energy consumption is ensured by using different levels of supply pressure in the working and the return stroke, and by holding the cylinder piston rod in its final positions with a clamping cartridge. Clamping and holding the piston rod in its final position further affects the reduction in energy consumption. Experimental data show that the application of the proposed control leads to a decrease in compressed air consumption of 25.54% to 32.97%, depending on the compressed air pressure used in the return stroke. The cost-effectiveness of the proposed cylinder control with different levels of compressed air pressure and holding the final position by clamping cartridge is presented.

Experimental Investigation of Energy Savings during Table-Top Hemming of Aluminum Alloys

2014 ◽  
Vol 611-612 ◽  
pp. 947-954 ◽  
Author(s):  
Severin Hönle ◽  
Mathias Liewald
Keyword(s):  
Energy Consumption ◽  
Energy Savings ◽  
Point Of View ◽  
The Body ◽  
Force Characteristic ◽  
Automotive Manufacturing ◽  
Process Characteristics ◽  
High Efficient ◽  
Reduction Of Energy Consumption ◽  
Typical Process

The organization of workflow and design of tools and processes in automotive manufacturing will become even more dominated by topics of energy efficiency due to increasing environmental requirements in the future. From this point of view a detailed analysis of all manufacturing processes in the body shop, taking into account the reduction of energy consumption and required area covered by equipment, is necessary. In automotive manufacturing welding and gluing processes as well as metal forming processes are commonly used for joining of single parts to an assembly group, such as doors or closures. In order to determine typical process characteristics as well as to develop more efficient hemming solutions an experimental study was performed in this paper. Using a modular hemming test, representing a conventional table-top hemming process for hang-on parts, theoretical energy consumption during flanging, pre-hemming and final-hemming was determined experimentally. The forming force characteristic shows typical process related development of each single operation. Based on these findings a first experimental parametric study was performed to determine the significance of single material and hemming parameters regarding energy consumption of the entire process workflow. The most significant hemming parameters also were quantified. In a further investigation the identified parameters were used to improve efficiency of the single forming operations (flanging, pre-hemming and final hemming). Therefore are more detailed DoE study was performed considering hemming tool and process parameters. In the final step of the investigation all process steps were combined to a high efficient hemming routine and positive and negative interactions of single steps were considered. For the evaluation of efficient hemming process the quality of the hemming rope was analyzed.

scholarly journals Biofeedback Applied to Interactive Serious Games to Monitor Frailty in an Elderly Population

2021 ◽  
Vol 11 (8) ◽  
pp. 3502
Author(s):  
Serhii Shapoval ◽  
Begoña García Zapirain ◽  
Amaia Mendez Zorrilla ◽  
Iranzu Mugueta-Aguinaga
Keyword(s):  
Real Time ◽  
Musculoskeletal System ◽  
Body Position ◽  
Tracking System ◽  
Medical Personnel ◽  
The Elderly ◽  
The Body ◽  
Feedback Analysis ◽  
Additional Tool ◽  
Game Controller

This article proposes an example of a multiplatform interactive serious game, which is an additional tool and assistant used in the rehabilitation of patients with musculoskeletal system problems. In medicine, any actions and procedures aimed at helping the rehabilitation of patients should entail the most comfortable, but at the same time, effective approach. Regardless of how these actions are orientated, whether for rehabilitation following surgery, fractures, any problems with the musculoskeletal system, or just support for the elderly, rehabilitation methods undoubtedly have good goals, although often the process itself can cause all kinds of discomfort and aversion among patients. This paper presents an interactive platform which enables a slightly different approach to be applied in terms of routine rehabilitation activities and this will help make the process more exciting. The main feature of the system is that it works in several ways: for normal everyday use at home, or for more in-depth observation of various biological parameters, such as heart rate, temperature, and so on. The basic component of the system is the real-time tracking system of the body position, which constitutes both a way to control the game (controller) and a means to analyze the player’s activity. As for the closer control of rehabilitation, the platform also provides the opportunity for medical personnel to monitor the player in real time, with all the data obtained from the game being used for subsequent analysis and comparison. Following several laboratory tests and feedback analysis, the progress indicators are quite encouraging in terms of greater patient interest in this kind of interaction, and effectiveness of the developed platform is also on average about 30–50% compared to conventional exercises, which makes it more attractive in terms of patient support.

Study on Loss Consumption for Closed Loop Air Suspension Height Control System with High & Low Pressure Chambers

2014 ◽  
Vol 494-495 ◽  
pp. 1242-1245
Author(s):  
Hong Jiang ◽  
Ya Dong Qiu ◽  
Mei Li
Keyword(s):  
Energy Consumption ◽  
Energy Loss ◽  
Closed Loop ◽  
Low Pressure ◽  
Test System ◽  
Open Loop ◽  
Pressure Chamber ◽  
Air Pressure ◽  
Ride Height ◽  
Air Suspension

Ride height adjustment of air suspension can be achieved by pumping air into or releasing air out of the air spring. However, energy loss would inevitably occur during the two processes,and test system of closed loop air suspension was established.Working process of the system was divided into three procedures as charging, discharging and boosting. Energy loss calculation method-compressed gas available energy was put forward, quantitative analysis of energy consumption during charging and discharging was carried out. Experiment results showed that energy consumption during charging process rises as initial air pressure of high pressure chamber increases, and during discharging and boosting processes, energy consumption decreases when initial air pressure of low pressure chamber increases. Under the same conditions, compared with open-loop air suspension, closed loop air suspension system with high & low pressure chambers can save plenty of energy.

scholarly journals Mitigating the Energy Consumption and the Carbon Emission in the Building Structures by Optimization of the Construction Processes

Energies ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3287
Author(s):  
Alireza Tabrizikahou ◽  
Piotr Nowotarski
Keyword(s):  
Life Cycle ◽  
Energy Consumption ◽  
Structural Optimization ◽  
Carbon Emissions ◽  
Carbon Emission ◽  
Construction Materials ◽  
High Energy ◽  
Building Structures ◽  
Life Cycle Stages ◽  
Reduction Of Energy Consumption

For decades, among other industries, the construction sector has accounted for high energy consumption and emissions. As the energy crisis and climate change have become a growing concern, mitigating energy usage is a significant issue. The operational and end of life phases are all included in the building life cycle stages. Although the operation stage accounts for more energy consumption with higher carbon emissions, the embodied stage occurs in a time-intensive manner. In this paper, an attempt has been made to review the existing methods, aiming to lower the consumption of energy and carbon emission in the construction buildings through optimizing the construction processes, especially with the lean construction approach. First, the energy consumption and emissions for primary construction materials and processes are introduced. It is followed by a review of the structural optimization and lean techniques that seek to improve the construction processes. Then, the influence of these methods on the reduction of energy consumption is discussed. Based on these methods, a general algorithm is proposed with the purpose of improving the construction processes’ performance. It includes structural optimization and lean and life cycle assessments, which are expected to influence the possible reduction of energy consumption and carbon emissions during the execution of construction works.

scholarly journals Traffic Light Priority for Trams in Warsaw as a Tool for Transport Policy and Reduction of Energy Consumption

2021 ◽  
Vol 13 (8) ◽  
pp. 4180
Author(s):  
Andrzej Czerepicki ◽  
Tomasz Krukowicz ◽  
Anna Górka ◽  
Jarosław Szustek
Keyword(s):  
Control System ◽  
Energy Consumption ◽  
Electric Energy ◽  
Fixed Time ◽  
Pollutant Emissions ◽  
Computer Simulation Model ◽  
Traffic Light ◽  
Electric Energy Consumption ◽  
Time Control ◽  
Reduction Of Energy Consumption

The article presents an analysis of priority solutions for trams at a selected sequence of intersections in Warsaw (Poland). An analysis of the literature has shown the topicality of this issue. A computer simulation model of a coordinated sequence of intersections was constructed. Three test scenarios were designed: the existing control system, the new coordinated fixed-time control system, and the adaptive control system with active priority. In the simulation process, detailed travel characteristics of trams and other traffic participants in a selected section were obtained for the three varying scenarios. Electric energy consumption for traction needs and pollutant emissions was then estimated for each of the variants. It was concluded that for the analyzed configuration, implementation of the adaptive priority will result in a reduction of tram time losses by up to 25%, a reduction in energy consumption by up to 23%, and a reduction in the emission of pollutants from individual vehicles by up to 3% in relation to the original variant. The conducted research may be the basis for a comprehensive method of assessing the effectiveness of applying the adaptative priority when designing new tramway lines and modernizing the existing ones.

Obesity impairs performing and learning a timing perception task regardless of the body position

2021 ◽  
Author(s):  
Fernanda Mottin Refinetti ◽  
Ricardo Drews ◽  
Umberto Cesar Corrêa ◽  
Flavio Henrique Bastos
Keyword(s):  
Body Position ◽  
The Body ◽  
Perception Task ◽  
Timing Perception

Lepeophtheirus salmonis (Krøyer, 1837): second nauplius and copepodid locomotor appendages, surface areas and possible appendage functions

Crustaceana ◽  
2013 ◽  
Vol 86 (13-14) ◽  
pp. 1695-1710 ◽  
Author(s):  
Susan E. Allen ◽  
A. G. Lewis
Keyword(s):  
Body Position ◽  
Ventral Surface ◽  
Total Surface Area ◽  
The Body ◽  
Lepeophtheirus Salmonis ◽  
Sinking Rate ◽  
Surface Areas ◽  
Thoracic Legs ◽  
Two Stages ◽  
Suitable Location

Locomotor appendage-body relationships were used to examine whether swimming or reduction in sinking rate is the more important function in the second nauplius and copepodid stages of Lepeophtheirus salmonis (Krøyer, 1837). Except for the similarity in swimming appendage surface areas without setae, the appendages of the two stages are morphologically distinct. Although the nauplius is smaller than the copepodid it has long slender appendages that, with setae, provide greater total surface area than the paddle-shaped copepodid thoracic legs. Copepodid thoracic legs are more similar to those used for swimming by planktonic copepods although with more limited propulsion capability. Naupliar appendages project from the body while copepodid appendages can be folded against the ventral surface, improving hydrodynamic flow as well as body position after attachment to a host. Both copepodid and naupliar appendages are of sufficient size that they should provide escape velocities of more than 100 mm ⋅ s−1. The nature and display of the naupliar appendages suggest they could be used to reduce sinking rate by as much as 64%, reducing the need to swim to maintain a suitable location in the water. Although copepodid thoracic legs could reduce sinking rate by over 40%, their position on the ventral surface and the nature of other appendages suggests a more important use, for orientation and attachment once a host is located.

Sign in / Sign up

Export Citation Format

Share Document