Vehicle Facilities Research Articles

An evaluative study on parking challenges and future demand forecasting at Kano Farm Center Market, Nigeria.

Parking involves stopping and disengaging a vehicle and leaving it unoccupied. Commercial centers require assistance in providing adequate parking facilities for vehicles to transport people, deliver goods, or conduct business transactions. Failing to meet the expected demand for parking can lead to frustration, safety concerns, and accidents. Our study involved conducting reconnaissance and surveys to assess parking demand and duration in the area. The objective was to provide valuable insights into the current urban transportation system, focusing on parking patterns and proposing a parking system specifically for Kano Farm Center Market. Our findings indicate an estimated annual growth rate of 10%, suggesting that in 15 years, the number of daily parkers will rise to 3,308. This means that more than the existing parking space of 2710 stalls will be required, and we recommend providing a larger area of 300m x 300m. This underscores the importance for urban planners and commercial center managers to invest in expanded and innovative parking solutions to enhance efficiency, safety, and accessibility for all users.

The Effect of Service Quality on Passenger Satisfaction at PT Titisan Sang Pangeran (Tispa)

This study aims to analyze the influence of service quality on passenger satisfaction at PT Titisan Sang Pangeran (Tispa). The research method used is a quantitative method with the distribution of questionnaires to 300 Tispa passengers during 2023. The results showed that service quality had a positive and significant influence on passenger satisfaction with a correlation coefficient of 0.734 and an R Square of 0.588. This means that 58.8% of the variation in passenger satisfaction can be explained by the quality of service provided. The most influential factors in service quality are vehicle facilities, service responsiveness, and employee friendliness. In conclusion, improving the quality of service can increase passenger satisfaction at PT Titisan Sang Pangeran.

Mixing efficiency optimization of Tesla-type flow channel for total temperature simulation device

The space vehicle total temperature simulation device introduces the actual gas total temperature signal into the vehicle development process. It enables the simulation of flight environments, reduces development time, and decreases overall costs. The uniform and stable temperature signal is paramount in accurately simulate the vehicle's real flight speed and altitude. However, the existing ground test facilities for space vehicles, characterized by their large scale, face significant challenges including insufficient uniformity in gas mixing and inadequate simulation accuracy. The Tesla-type flow channel (TFC) is widely applied for its excellent mixing capabilities in gas and liquid mixing across various domains. In this paper, from the working principle of the total temperature simulation device of space vehicle, according to the characteristics of TFC, a high mixing efficiency optimization design method of TFC is proposed by using RBF neural network response surface and NSGA-II algorithm. The optimized TFC is implemented in the mixing chamber of the total temperature simulation device to enhance the mixing efficiency. This improvement ultimately leads to enhanced accuracy in simulating the flight environment of space vehicles during semi-physical simulations. By utilizing the Pareto optimal solution, the optimal pressure drop is 985.50 Pa, while the standard deviation of temperature is 39.37 K. The results demonstrate a significant improvement in mixing efficiency within the total temperature simulation device due to the introduction of the TFC. This study serves as a valuable reference for enhancing the mixing performance of the total temperature simulation device for space vehicles, while also addressing the need for total temperature simulation in smaller laboratory environments.

Rekonstruksi dan Digitalisasi Taman Sebagai Upaya Peningkatan Kesejahteraan Masyarakat di Desa Mlorah

The reconstruction of the village park is an urgent need in strengthening local identity, improving the quality of life of the community and its environment. The location of the park located on the edge of the Janeng Dam in Mlorah Village is quite well maintained and there are trees that make the environment cool, but it lacks attractiveness because there are no vehicle facilities. The purpose of this community service activity is to achieve the SDGs indicators in order to create a healthier environment, support the digitalization of education, and preserve the environment. The method in implementing the activity is Participatory Action Research. The results of this park reconstruction and digitalization activity are park social media accounts and inorganic waste management into park facilities in the form of biopores, park direction signs, and playgrounds

New energy vehicle technology research - Charging technology

In recent years, Chinas economic development is becoming more and more rapid, leading to the increasingly serious pollution emission problem of traditional fuel vehicles. In order to solve the environmental problems, the transformation of automobiles has become an urgent problem. At the present stage, electric vehicles are also widely concerned by all sectors of society because of their low carbon emissions, energy saving and low use cost. With the rapid growth of electric vehicle sales, the demand for charging piles is rising, and the mainstream charging facilities for new energy vehicles are still in short supply. Therefore, we need to focus on efficient wireless charging to solve the major problems in the current electric vehicle industry. This paper analyzes the wireless dynamic energy transmission technology, extending the service life of the battery, how to reduce the cost, the optimization of coil parameters design, the offset of transmission coil and receiving coil, foreign body detection and overheating problems.

Survey on An Efficient Traffic System for Emergency Vehicles using Internet of Things

The traffic system helps to detect the congestion area and reduce the congestion. The traffic light flashes based on the overload on the given input to the model. In the transport system model, the emergency vehicle facility (EVF) is one of the basic public services. It plays a key role in saving people's lives and reducing mortality. This article presents literature reviews specifically devoted to each finding. This study can help the researcher or interested reader to recommend the development of different models in the field of EVF.

IoT-Enabled Fault Prediction and Maintenance for Smart Charging Piles

With the application of the Internet of Things (IoT), smart charging piles, which are important facilities for new energy electric vehicles (NEVs), have become an important part of the smart grid. Since the smart charging piles are generally deployed in complex environments and prone to failure, it’s significant to perform efficient fault diagnosis and timely maintenance for them. One of the key problems to be solved is how to conduct fault prediction based on limited data collected through IoT in the early stage and develop reasonable preventive maintenance strategies. In this paper, a real-time fault prediction method combining costsensitive logistic regression (CS-LR) and cost-sensitive support vector machine classification (CS-SVM) is proposed. CS-LR is firstly used to classify the fault data of smart charging piles, then the CS-SVM is adopted to predict the faults based on the classified data. The feasibility of the proposed model is illustrated through the case study on fault prediction of real-world smart charging piles. To demonstrate the advantage in prediction accuracy, the proposed fault prediction model is compared with the classic baseline models such as LR, SVM, decision tree (DT), K-nearest neighbor (KNN), and back propagation neural network (BPNN). Finally, based on the proposed fault prediction method, preventive maintenance based on a probability threshold with the minimum total expected cost is proposed. Simulation results show that the proposed maintenance strategy has a better performance in reducing the total maintenance cost compared with traditional periodic maintenance. This is valuable for the development of preventive maintenance strategies for repairable systems under early real-time monitoring data.

Penegakan Hukum Terhadap Pelanggar Penggunaan Kendaraan Dinas

Law Enforcement supervision of violators of official vehicle users by government officials is carried out based on the principle of decentralization where the Central Government fully delegates to Regional Governments to follow up or manage their respective regions. Any State/regional losses due to negligence, misuse or violation of law on the management of State/regional property are resolved through claims for compensation in accordance with laws and regulations. In responding to and avoiding the misuse of official vehicle facilities by government officials, it is necessary to supervise the use of official vehicle facilities. Supervision carried out on official vehicle facilities is intended so that government officials are aware of their responsibilities as servants of the state and society and do not attach importance to personal interests. The legal issues in writing are, first; What is the function of Government supervision of official vehicles ?. second; How are sanctions applied to violators of the use of official vehicles by government officials? The type of research used is Normative juridical research using a problem approach, namely a statutory approach and a concept approach. While the legal materials used are primary legal materials, secondary legal materials and tertiary legal materials. The technique of collecting legal materials through literature research with legal material analysis techniques is qualitative. Based on the results of research that violations of the use of official vehicle functions are still often encountered, due to the use of official vehicles are often used outside official interests. Violation of regulations and abuse of authority because it is not in accordance with the use and function of the official vehicle itself based on Government Regulation Number 28 of 2020 on Amendments to Government Regulation Number 27 of 2014 concerning Management of State/Regional Property and in accordance with Government Regulation Number 94 of 2021 concerning Civil Servant discipline. Government officials who misuse official vehicles may be penalized. Any party that causes losses to the State/Region for personal interests or for interests outside the functions of the position and service that can result in state/regional losses, may be given administrative sanctions and criminal sanctions.

Rearranging Production Facilities on Electric Vehicles with the CORELAP Algorithm

Electric vehicles as an alternative means of sustainable transportation need to be supported because they can reduce carbon emissions by up to 54% and oil demand by 6.4 MMbpd by 2040 compared to conventional vehicles. GATe (Gadjahmada Airport Transporter Electric) is an electric vehicle based on NEV (Neighborhood Electric Vehicle). GATe car production is carried out at the GATe production facility which is still in the prototype stage. This research reorganizes the production facilities for electric vehicles in GATe (Gadjahmada Airport Transporter Electric) cars for the LRIP (Low Rate Initial Production) stage. The facility layout is designed using a fixed position layout approach, that is, the main product does not move. This research uses the CORELAP method with quantitative evaluation in terms of displacement. It was found that the total displacement using the CORELAP algorithm was 1791.15 m.

Kajian Pengawasan Unit Apron Movement Control (AMC) terhadap Kelayakan Ground Support Equipment (GSE) di Sisi Udara Bandar Udara Internasional Hang Nadim Batam


 Supervision conducted by Apron Movement Control (AMC) on the feasibility of Ground Support Equipment (GSE) vehicles is still frequently found in incidents and violations on the airside. Violations found such as damage to the vehicle engine, vehicle facilities that do not comply with regulations, and oil/fuel spills. This study aims to find out the causes of the lack of supervision of the Apron Movement Control (AMC) unit on the feasibility of the Ground Support Equipment (GSE) on the airside and to find out the reasons why Ground Support Equipment (GSE) vehicles that are not operationally feasible are still used on the air side at International Aiports Hang Nadim Batam. This study uses a qualitative method. Data collection techniques through interviews, observation and documentation. Then data analysis was carried out, namely data reduction, data presentation, and drawing conclusions. The results of this study indicate that direct supervision by Apron Movement Control (AMC) of GSE vehicles has not been carried out properly because AMC officers are more focused on garbarata services and Human Resources (HR) are limited, so violations are still found on the airside such us GSE vehicles that are not properly operational. Unfit GSE vehicles are still used for operational activities on the airside due to very busy flight schedules.
 Keywords: Supervision, Apron Movement Control (AMC), Feasibility, and Ground Support Equipment (GSE)

Implementasi Bagi Penyandang Disabilitas dalam Perolehan Surat Izin Mengemudi (SIM) ”D” di Polresta Denpasar

Granting of Driver's Licenses (SIM) to persons with disabilities The obstacles faced by the Police in providing a driver's license (SIM) for persons with disabilities in the jurisdiction of the Denpasar Police, that in accordance with the provisions of the application for a driver's license must be completed with a Health Certificate from a doctor. This writing uses an emperical research method, namely conducting field research through interviews at the research site supported by primary and secondary data collected and processed in a qualitative descriptive manner. The Effectiveness of Driver's License (SIM) Making Services in the Administrative Unit (Satpas) of the Denpasar Police Driver's License, that the process of servicing a driver's license (SIM) "D" for persons with disabilities is carried out in accordance with the provisions of the applicable law and other related regulations and in practice the service has not been effective, due to the lack of facilities and infrastructure of practical test equipment in the form of motor vehicles specifically and their trajectories, so that there is a gap between the Das Sollen with Das Sein caused the service of a Driver's License (SIM) "D". The obstacles faced by the Police in providing driver's licenses (SIM) for people with disabilities, that with several factors as obstacles to the service of making a driver's license (SIM) "D"lack of facilities and infrastructure, there are several efforts made by the police in overcoming obstacles through the provision of special motor vehicle facilities and infrastructure for people with disabilities and their tracks.

Research and Development Review of Power Converter Topologies and Control Technology for Electric Vehicle Fast-Charging Systems

With the rapid development of the electric vehicle (EV) industry, charging facilities for electric vehicles are gradually improving, thus meeting the demand for fast and safe charging. This paper comprehensively describes the current development status and future development trend of EVs and their charging infrastructure and analyzes in detail the EV fast-charging system architecture according to the AC/DC coupling configuration. The topologies and control techniques of the front AC/DC converter and rear DC/DC converter for the charging system are discussed, providing a reference for the future design of hundred-kilowatt level and above fast-charging systems for EVs. In addition, this paper summarizes the EV charging interface and the charging specifications applicable to the hundred-kilowatt power fast-charging system, as well as the impact of fast charging on power batteries, and emphasizes that high-power fast-charging technology is an inevitable trend for the future development of electric vehicles.

Enhancing Pharmaceutical Supply Chain Resilience: A Study of Pharmaceutical Companies in Multiple Geographies

Abstract: Background: Pharmaceutical businesses had enormous difficulties in product distribution during COVID-19, and the solution to this perpetual issue is a resilient supply chain. Aim: The study aims to understand the vulnerabilities to which it subjected the pharmaceutical product distribution supply chains during the COVID-19 pandemic and further develop an adaptive model through which the pharmaceutical product supply chain can enhance its resilience capabilities. Materials and Methods: The conceptual model is developed for the supply chain of pharmaceutical companies based on the literature survey, and then the conceptual model is explored through factor analysis. Researchers have developed a validated model after a statistical analysis using Cronbach’s alpha. Subjective analysis has concluded that the pharmaceutical supply chain's resilience is driven by factors such as "trade cost," which comprises transport cost, business practices, and raw material sourcing cost; "shock propagation," which comprises country-specific shocks, production shocks, and policy changes; and "technological infrastructure bottleneck," which relates to the availability of cold chain storage warehouses and refrigerated transport vehicle facilities. Results: An empirical model pertaining to supply chain resilience may be further studied with different geographies, like Pune, Hyderabad, and Delhi NCR, for the purpose of generalizing the study. Conclusion: The identified major factors were trade cost, shock propagation, and technological infrastructure bottlenecks. The sensitivity of the issue under investigation required a personal touch to the survey, as the COVID-19 pandemic had left these respondents emotionally vulnerable. As COVID-19 is the recent catastrophe that has hit humanity, it has made the pharmaceutical product distribution channel vulnerable during the pandemic. This difficult time of pandemic has really tested the pharmaceutical products’ supply chain capabilities as well. Keywords: Supply Chain Resilience, Trade cost, Shock propagation, Technological infrastructure bottleneck.

DELIVERY PROCESS OF GOODS AT PT. XYZ LOGISTICS

This study discusses the Process of Shipping Goods at PT. XYZ Logistics Bekasi. The research method uses the observation method and the library method. Based on the results of observations or observations made by researchers in the process of sending goods at PT. XYZ Logistics Bekasi, researchers found obstacles including a shortage of goods sent, damage to car engines so that shipments were delayed and customers were not served on time, and the solution that researchers proposed to overcome obstacles in the problem of shipping goods was that proper delivery vehicle facilities were needed. and adding operational vehicles for delivery of goods so that there are no delays in the delivery of goods, checking the engine before the truck carries out the process of loading goods so that the process of sending goods can run well, cooperation and accuracy are needed for warehouse employees in checking orders when loading goods so that there is no shortage or excess of goods which makes the outlet that ordered suffer losses because they have to re-order the goods.

Analysis of the Maintenance of Operational Facilities for the PKP-PK Unit in Supporting Aviation Safety at Iskandar Pangkalan Bun Airport

Care and maintenance of PKP-PK operational vehicle facilities, one of the things that must be done by personnel to provide accident services in the airport area, is the same as at Iskandar Pangkalan Bun airport for the care and maintenance of main and supporting vehicles in accordance with the Regulations of the Directorate of Civil Aviation KP.14 of 2015. The purpose of this study was to find out qualitatively about the components that must be considered every day in maintaining operational vehicles at Iskandar Pangkalan Bun Airport. The research design is a qualitative study in the form of a case study using observation sheets and in-depth interviews with PKP-PK personnel and PKP-PK units at Iskandar Pangkalan Bun Airport. The results of the study indicate that the obstacles experienced by PKP-PK personnel in carrying out maintenance and maintenance of operational vehicles, namely the procurement of vehicle parts, in which the PKP-PK unit at Iskandar Airport has various car brands (manufacturing factories).

Optimization of Charging/Battery-Swap Station Location of Electric Vehicles with an Improved Genetic Algorithm-Based Model

The joint location planning of charging/battery-swap facilities for electric vehicles is a complex problem. Considering the differences between these two modes of power replenishment, we constructed a joint location-planning model to minimize construction and operation costs, user costs, and user satisfaction-related penalty costs. We designed an improved genetic algorithm that changes the crossover rate using the fitness value, memorizes, and transfers excellent genes. In addition, the present model addresses the problem of “premature convergence” in conventional genetic algorithms. A simulated example revealed that our proposed model could provide a basis for optimized location planning of charging/battery-swapping facilities at different levels under different charging modes with an improved computing efficiency. The example also proved that meeting more demand for power supply of electric vehicles does not necessarily mean increasing the sites of charging/battery-swap stations. Instead, optimizing the level and location planning of charging/battery-swap stations can maximize the investment profit. The proposed model can provide a reference for the government and enterprises to better plan the location of charging/battery-swap facilities. Hence, it is of both theoretical and practical value.

The open location-routing problem for multi-objective optimization of sustainable supply chain considering social concerns

Taking into account the variety of real-world constraints and incorporating them into classical problems are essential in designing supply chain networks. Meanwhile, given the importance of outsourcing, the open location-routing problem (OLRP) is proposed to fulfill customers' demands and minimize costs by determining the optimal location of vehicle facilities and routes. In addition, supply chain sustainability is attracting increasing attention since it promotes a bright future for the coming generations by striking a balance between economic, environmental, and social performances in supply chain design. In this study, we contribute to the scarce literature on supply chain sustainability and OLRP. First, using OLRP, we model a sustainable supply chain that addresses all sustainability pillars. Second, we use the NSGA-Ⅱ meta-heuristic method to solve the proposed model and finally compare its efficiency with Cplex. The model characterized in this study can be considered a basic reference on the subject of supply chain sustainability and OLRP. Moreover, we indicate that both of the proposed solution methods are capable of solving the developed model; however, the meta-heuristic method, NSGA-Ⅱ, is significantly more efficient than the classical one, Cplex, in terms of computation time, particularly in solving medium- and large-scale problems.

The Satisfaction Level of Local Batam City Bus (Bimbar), Indonesia

Public transportation has a significant role in urban life. One of the well-known public transportation in Batam City is the "Bimbar" City Bus. This research aims to get the satisfaction level of Bimbar users. The method used is data collection techniques using questionnaires, then the data obtained is processed using descriptive analysis techniques using the IPA (Importance Performance Analysis) method. As a result, the average gap between performance and importance is -0.96. The indicator with the highest gap is Cleanliness on city buses, with a value of -1.75, which means that service providers must prioritize their performance on Cleanliness on the bus so that users can feel satisfied. Another indicator that must be improved is adequate vehicle facilities and conditions because users still need to be satisfied with the performance of city bus service providers with relatively high gaps.

Planning of static and dynamic charging facilities for electric vehicles in electrified transportation networks

Dynamic wireless charging technology can promote the popularization of electric vehicles due to its role in alleviating range anxiety. It is necessary to consider it as a significant charging method in future urban scenarios. The development of EVs and charging facilities has brought about the electrification of transportation, forming a power-traffic system. To maximize the comprehensive performance of the system, this paper proposes a planning strategy for the coexistence of static and dynamic charging facilities. First, considering the response of vehicle users in the transportation network to the planned results, we design a bi-level optimization framework. Then, in the lower-level optimization model, taking into account the charging demands of different vehicles, we construct a multi-class user equilibrium model and adopt a modified adaptive path generation algorithm and a variable update factor algorithm to solve the traffic assignment problem. In the upper level, we utilize an evaluation indicator to indicate the comprehensive performance of the system, and the evaluation indicator is minimized under constraints on the capacities, charging prices, and usage prices of hybrid charging facilities. Then, an algorithm based on the surrogate model is introduced to solve the bi-level programming. Finally, the case studies demonstrate the advantages of hybrid charging facilities as well as the feasibility and effectiveness of the solution algorithm.

Asset Administration Shell 기반 전기자동차 실시간 모니터링 시스템 구현

Amid the digital transformation paradigm, the concept of a digital twin that can provide a seamless connection between the physical and information worlds was announced as a critical element. Asset Administration Shell (AAS) is emerging as a core technology for implementing a digital twin. AAS is a meta-model specification that can represent all the characteristics and information of the asset in the information world. In this study, we implemented a real-time electric vehicle monitoring system to verify and analyze the characteristics of battery pack operations. A monitoring system collects and stores almost all data on communication between electric vehicle facilities such as the inverter, battery pack, brake system, air conditioning, vehicle location, and vehicle direction depending on the driver’s operations. Furthermore, we developed an AAS meta-model for electric vehicle information to provide a standardized interface for applications. In this paper, we demonstrate a simple example in which the behavior of a battery pack can be analyzed based on the action of the electric vehicle.