Browse Topic: Quality management systems

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Achieving full ASIL-B level functional safety (FuSa) for Automotive Clusters2026-26-0008To be published on 01/16/2026
Traditionally, automotive cluster modules have not placed strong emphasis on functional safety (FuSa) measures for capturing and displaying data. Most cluster components are developed with a focus on Quality Management (QM) levels, and proprietary implementations are often used without adhering to standardized safety approaches. This paper highlights the need to bring certain cluster components under an Automotive Safety Integrity Level B (ASIL-B) context, proposing a standardized and structured methodology for their development — particularly by adopting Classic AUTOSAR frameworks. Several critical components within the cluster demand FuSa mechanisms to ensure reliable and safe operation. These components should be designed to comply with key safety principles, including freedom from interference, execution under privileged levels, and integrity verification. The FuSa goals for these components also extend to their configuration management and update strategies within the cluster
Singh, Iqbal, Kumar, Praveen
Integrated Quality Assurance Frameworks for Testing Advanced Automotive Systems in the Era of ADAS and E-Mobility2026-26-0568To be published on 01/16/2026
As the automotive industry rapidly transitions toward intelligent, electrified, and connected mobility, ensuring the safety and performance of advanced vehicle systems has become increasingly complex. Technologies such as Advanced Driver Assistance Systems (ADAS), electric powertrains, and software-defined architectures demand robust quality assurance (QA) frameworks capable of addressing the multi-domain nature of modern vehicle platforms. This paper presents an integrated QA methodology that combines traditional testing protocols with model-based validation, digital twin environments, and real-time system monitoring to comprehensively evaluate the reliability and functionality of next-generation automotive systems. The proposed framework focuses on end-to-end traceability from requirements to validation, encompassing hardware-in-the-loop (HIL), software-in-the-loop (SIL), and over-the-air (OTA) testing strategies. Emphasis is placed on simulating complex scenarios for ADAS, battery
KOMANDURI, ARUN SRINIVAS, Srivastava, Anuj
Comprehensive Assessment of Volatile Organic Compounds and Efficacy of Vapor Recovery System at Fuel Stations2026-26-0233To be published on 01/16/2026
In densely populated urban environments, fuel retail outlets represent sources of Volatile Organic Compounds (VOCs), particularly benzene, toluene, and xylene. These emissions occur during various operations including storage tank filling, underground storage, and vehicle refuelling at retail outlets. The contribution of VOC by fuel distribution infrastructure to urban VOC pollution has been adequately addressed by oil marketing companies (OMCs) by the installation of vapor recovery system which is deployed for the comprehensive capture of fugitive emissions. This study employed a novel approach at an OMC Retail Outlet in Delhi, to evaluate benzene concentrations with different operational case studies. The methodology integrated continuous ambient air monitoring system equipped with VOC analyser of GC-PID technology alongside targeted forecourt measurements with handheld PID instrument. Benzene emissions during peak and off-peak hours, vehicle throughput, fuel sales volume, and
Mayeen, Hafiz, Ahuja, Muskan, Kalita, Mrinmoy, Kumar, Prashant, Sithananthan, M, Arora, Ajay
An investigation into the Structural Impacts of Off-Road Manoeuvres on Rear Axle upper Link Mounting Bracket2026-26-0490To be published on 01/16/2026
Multi-link rigid axle suspension is widely used as a rear suspension system for body-on-frame SUVs. The upper link in a multi-link rear suspension plays a critical role in managing the vertical and longitudinal positioning of the axle, while the lower link ensures stability by regulating the axle's movement in the horizontal plane. This coordinated functionality of upper and lower link allows for controlled axle dynamics during compression and rebound, significantly enhancing ride comfort and improving vehicle handling characteristics. This study examines the failure of an upper link mounting bracket on the rear axle of an SUV during off-road events, despite no failures observed in other durability tests. Root cause analysis is conducted on failed samples to determine the specific reasons for failure only in off-road conditions. Additionally, the investigation focuses on understanding the dynamic loads experienced by the upper link during vehicle operation across various durability
J, Akhil, Senthil Raja, T, Ghumare, Dheeraj, Chilakala, Raghavendra, Kundan, Lal, Mohapatra, Durga Prasad
Design Solutions for Ice-Induced CNG Filling Failures: Field Issue Resolution through Filter Geometry and Seal Material Reengineering2026-26-0515To be published on 01/16/2026
Compressed Natural Gas (CNG) systems in automotive applications are highly sensitive to fuel quality, especially with respect to moisture content. Field issues were observed where high moisture levels in the CNG led to the formation of ice inside the receptacle during refueling operations. This ice formation obstructed the CNG filling process and adversely impacted the sealing performance of the O-ring, particularly under low-temperature conditions induced by pressure differentials between the storage tank and the filling station. Investigation revealed that the existing tablet-type filter design contributed to moisture entrapment within its wire mesh, exacerbating ice formation within the receptacle. To address this, the filter design was modified from a tablet-type to a cup-type filter, significantly reducing the likelihood of moisture retention and subsequent ice formation. Additionally, the O-ring material was upgraded to a formulation with improved sealing properties at lower
Virmani, Nishant, Sawant, Shivraj Madhukar, C R, ABHIJITH
Engine oil fluctuation study in HLA gallery and impact of VVT cam phasing on oil fluctuation.2026-26-0559To be published on 01/16/2026
Oil pressure, the most fundamental to engine's performance and longevity, is critical as it ensures that the engine components are properly lubricated, cooled, and protected against wear and contamination, ultimately contributing to reliable engine performance. Due to several factors of engine, such as speed and load, there are fluctuations in oil pressure, which can be controllable and sometimes unpredictable. Controlled oil pressure fluctuations are essential for engine efficiency and adaptability, such as adaptive lubrication, temperature compensation, and hydraulic component functioning like variable valve timing, VVT, and hydraulic lash adjuster, HLA. But excessive or irregular fluctuations can indicate serious issues like excessive or sudden drops, unstable engine performance, valve train noise, improper lifter operation, VVT malfunctions, overheating, and increased wear. In this paper, HLA gallery pressure fluctuations are studied, and its impact was assessed on valve train
Kumar, Ashok, Choubisa, Manas, Kumar, Ravi, pathak, Mehul
EV Powertrain Systems Diagnostics & Prognostics utilizing AI & ML (LLM) based approach2026-26-0664To be published on 01/16/2026
This study introduces a novel Large Language Model (LLM)-driven approach for comprehensive diagnosis and prognostics of vehicle faults, leveraging Diagnostic Trouble Codes (DTCs) in line with industry-standard automation protocols. The proposed model represents a significant advancement in automotive diagnostics by not only identifying fault codes but also reasoning through the root causes behind them, thereby enhancing fault interpretability and maintenance efficiency. The LLM is trained on extensive service manuals, sensor datasets, historical fault logs, and OEM-specific DTC definitions, enabling context-aware understanding and correlation of faults. Analytical validation has been performed using real-world vehicle datasets from multi-brand platforms, demonstrating the model’s ability to detect complex fault chains and accurately predict probable root causes. By utilizing time series based projection of vehicle pattern, model could also predict the potential future faults basis the
Pandey, Suchit, Joshi, Pawan, KONDHARE, MANISH, CH, Sri Ram, Gajbhiye, Abhishek, S, Adm Akhinlal
FATIGUE FAILURE ANALYSIS FOR AUTOMOTIVE TRASNMISSION2026-26-0577To be published on 01/16/2026
A fatigue failure in the transmission input shaft was identified during a bench-level endurance test under 2nd gear loading conditions. The test transmission’s input shaft comprises fixed 1st, reverse, and 2nd gears, with the remaining gears mounted as floating. The shaft was subjected to cyclic torsional loads, and failure occurred after a defined number of cycles. Metallurgical analysis revealed a brittle fracture surface with crack initiation at the outer surface, propagating to core in a helical pattern, ultimately resulting in complete shaft fracture. To monitor and replicate the failure, the test setup was instrumented with a Reilhofer Delta Analyzer for early fault detection. TTL signals from accelerometers mounted on the transmission and a bench speed sensor were fed into the system, which generated FFT spectra and trend indices. A warning alarm triggered upon deviation in the trend index, indicating premature damage initiation. The test was subsequently halted for component
Navale, Pradeep, Kushwaha, Rakesh, Patel, Hiral
AI-Powered Innovation: Harnessing Data Analytics and AI in Modern Powertrain Development2026-26-0641To be published on 01/16/2026
The proposed presentation will delve into the transformative role of artificial intelligence (AI) in the automotive industry, specifically focusing on product development from concept to series support. The presented effort is driven by the need to enhance development efficiency, reduce time to market, improve product quality, and lower production costs. AI was explored as a solution to address challenges such as late availability of hardware components, issues during software integration, and high warranty costs. The AI applications discussed are primarily in the automotive industry, covering areas such as vehicle concept development, usage space analysis, root cause analysis, battery health monitoring, and failure prediction and health monitoring. The methodologies used include advanced AI methods to shorten the time from customer expectations to target agreements, statistical driving data analysis to understand user behaviour, machine learning (ML) surrogate models to identify key
Mayr, Christian, Keuth, Nikolaus
A Quality-Driven Approach to Engineering Sign-Off for Software and Robust Product Development2026-26-0581To be published on 01/16/2026
This abstract outline a paper detailing the development and implementation of a comprehensive framework designed to enhance the quality and governance of the product development process in the automotive industry. As the sector undergoes significant transformation—driven by electrification, autonomous systems, and increasing regulatory and customer expectations—the need for structured development approach and robust oversight has become critical to success. The paper introduces a newly developed framework for Final Data Judgment (FDJ) and Engineering Sign-Off (ESO), representing a next-generation strategy to defect free design, robust engineering quality management and product maturity assurance. This methodology emphasizes customer-centric deliverables, risk-based assessments, and technical rigor to minimize post-SOP issues and ensure alignment with end-user expectations. The approach prioritizes end-user impact by embedding rigorous quality checkpoints that align engineering outputs
Digikar, Ashish, PATHAK, ISHA, Kothari, Bhushan
Multispeed EV Transmission – Gear Shift Simulation and Validation2026-26-0157To be published on 01/16/2026
The advancement of electric vehicle (EV) transmission systems is currently a prominent trend aimed at decreasing carbon emissions and providing eco-friendly transportation alternatives. Most of the EV transmissions are single speed, but research conducted on multi speed EV transmissions show higher efficiency, good performance, high speed and torque demand when compared with single speed counterparts. Most of the multi speed EV transmissions that are developed are of non-synchromesh type, which have direct effect on NVH, driving dynamics and durability of drivetrain components. Due to aforementioned factors, gearshift analysis becomes critical for development. Simulation model is developed at early development phase for initial feedback. Using the feedback, drivetrain can be optimized furthermore and test on physical parts can be conducted for final verification. This paper provides a simulation based approach for modelling non-synchromesh two speed EV transmission using Simulation X
Patel, Hiral, Thambala, Prashanth, Sutar, Suresh, Todtermuschke, Karsten
Dimensional Management in Automotive Vehicle Design & Development for Perceived Quality Improvement in Buses2026-26-0447To be published on 01/16/2026
Perceived quality (PQ) is one of the most important factors in engineering signoff as well as customer delight and product improvement (feel, look & touch). The PQ is something related to feel of the product in terms of gap, flushness, fitment and appearance as per the costumer perceptions and expectations. Validate both design and engineering with the perceived quality review. In today's automotive bus industry this is equally applicable. In this paper we have explored the dimensional management scope in improving the PQ requirements and expectations by utilising the dimensional variation analysis (DVA) approach. We have explored & explained the fundamentals of vehicle aggregates fitment process and impact of fitment tolerances as used in DVA model to resolve vehicle packaging issues (critical gaps & clearance variation as per expected no. of vehicles to be manufactured in future at initial stage of the vehicle design). It is further extended into system level DFMEA to include DVA in
Singh, Vinay Kumar, Dewangan, Ved Prakash, Kumar, Rahul, Deep, Amar
Overview of Indian Government Policies, Evolution of Indian Automotive Regulations and Striking balance approach for adoption2026-26-0242To be published on 01/16/2026
A well-regulated vehicle design and manufacturing instils driver and passengers' safety and comfort, and lays the foundation for safe and clean mobility. Evolution of Automotive regulation has a long legacy across the globe. India has been closely following the Automotive regulatory progress in the Europe as a cornerstone for technical harmonization, cross learning, gauge benefits and economic implications. Even though India being a developing country, it has not only shown its willingness to harmonize world's best practices but also been making right preparations towards safe and clean mobility. Adoption of BS-VI directly from BS-IV is a testament to India's commitment. While doing so, Government of India (GOI) has always been striking a balanced approach between harmonization of regulations and business implications (ground reality, TCO, business sustenance and growth). Given the above context, the paper explores about: i)Trajectory of evolution of Automotive regulations in India
Patil, Dharmarayagouda
Totem-Pole PFC and LLC resonant converter based 6.6kW On-Board Charger for LEV Applications2026-26-0160To be published on 01/16/2026
As light electric vehicles (LEVs) gain popularity, the development of efficient and compact on-board chargers (OBCs) has become a critical area of focus in power electronics. Conventional AC-DC topologies often face challenges, including high inrush currents during startup, which can stress components and affect system reliability. Furthermore, DC-DC converters often have a limited soft-switching range under light load conditions, leading to increased switching losses and reduced efficiency. This paper proposes a novel 6.6 kW on-board charger architecture comprising a bridgeless totem-pole power factor correction (PFC) stage and an isolated LLC resonant DC-DC converter. The main contribution lies in the specific focus on enhancing startup behavior and switching performance. In PFC converters, limiting inrush current during startup is crucial, especially with fast-switching wide-bandgap devices like SiC or GaN. Conventional soft-start techniques fall short in of ensuring smooth voltage
Patil, Amruta, Bagade, Aniket
Thermal Shock Test Rig for CNG Shut-off Valve2026-26-0526To be published on 01/16/2026
In Automobile, Gasoline Engines are being used along with electrically operated shut-off valve installed at the roof of bus in case of higher capacity of CNG systems. In order to start/ stop CNG supply from cylinder for running of engine/ safety/ servicing an electrical operated ignition switch/ key controlled CNG Shut-Off Valve is placed just after the cylinders. There have been few failures of these CNG shut-off valves in field application. On investigation, it was observed that the CNG shut-off valve gets failed due to water ingress in coils from the cracks on surface generated due to spray of water (due to daily washing of bus and rain) on heated shut-off valves. In order to validate this field failure and subsequent validation of modified design, a need was felt to use a test rig which can exactly simulate the water spray based thermal shocks. However, there was no low cost facility available to simulate the field service condition for validation. Therefore, a low cost test set-up
Srivastava, Pravin Kumar, Vivekanand, Vivekanand, Kumar, Satish
Study of real time impact on automotive cabin Air Quality due to the ambient air pollution in the severely polluted city2026-26-0531To be published on 01/16/2026
This study investigates the concentrations of PM2.5 and PM10 inside an automobile under real-world driving conditions in Delhi, one of the most polluted cities globally. India faces severe air pollution challenges in many cities, including Delhi, which are consistently ranking among the most polluted cities in the world. Major contributors to this pollution include vehicular emissions, industrial activities, construction dust, and biomass burning. Exposure to PM2.5 and PM10 has been linked to numerous adverse health effects, including respiratory and cardiovascular diseases, aggravated asthma, decreased lung function, and premature mortality. PM2.5 particles, being smaller, can penetrate deeper into the lungs and even enter the bloodstream, causing more severe health issues. In big cities like Delhi, long driving times exacerbate exposure to these pollutants, as commuters spend extended periods in traffic. Measurements were taken both inside and outside the vehicle to assess the real
Gupta, Rajat, Pimpalkar, Ankit, Patel, Abhishek, Rajaur, Deepak, Kumar, Shubham, Joshi, Rishi, Kumar, Mukesh
Resolution of Automotive Air Compressor Noise in Low Powered ICE vehicle2026-26-0314To be published on 01/16/2026
Passenger compartment's interior noise and thermal performance are one of the essential criteria for the driving comfort of vehicles. This paper explains that how the AC compressor noise is optimized in specific to low powered 1 L - ICE engine and 120 cc IVDC compressor combination. This combination is quite challenging due to high operational load & higher operating pressure. For better in-cabin cooling efficiency, compressor operating efficiency to be improved which in turn leads to higher displacement of the compressor. Higher displacement will lead to higher internal forces which leads to more structure borne induced noise in-side the cabin. For this specific combination, the compressor operating pressure reached to 25 bar at most of the driving condition. During dynamic driving condition, compressor metallic tonal noise was reported in one of the A segment vehicle developments. It was reported as very annoying to inside passenger. Transfer Path Analysis, Compressor fixation point
John Britto, Vijay Antony, Maluganahalli-Dharmappa Madhusoodan Sr, 1Lt Madhusoodan, Natarajasundaram, Balasubramanian
Combustion noise quality improvement in a common rail Diesel Engine at Low idle for Agriculture Tractor2026-26-0329To be published on 01/16/2026
Vehicle level NVH performance plays major role in customer comfort criteria. Tractor low idle rpm Sound Quality can be one of the parameter which influences customer purchasing decision based on comfort criteria. Modern diesel engines with stringent emission norms together with fuel economy requirements pose challenges to noise control. Common rail engine technology has advantage of precise fuel delivery and combustion control which needs optimization to achieve the conflicting requirements of noise, emission and fuel efficiency. Engine noise at low idle condition is dominated by combustion noise which depends on rate of pressure rise inside the cylinder during combustion. The important parameters which influence cylinder pressure rise are fuel injection timing, pilot injection quantity and its separation, rail pressure and EGR valve position. The study is carried out to understand which combustion parameter is most influencing to achieve better sound quality of engine. Taguchi design
p, Priyadarshan, Chavan, Amit, A, Kannanswamy, Patil, Sandeep, Chaudhari, Vishal V
Installation Quality Audit (IQA) To-Go with Augmented Reality (AR)2026-26-0420To be published on 01/16/2026
This paper presents a digital methodology that integrates the Installation Quality Assurance (IQA) process through augmented reality (AR) technology to rectify the part accessibility issues for assembly and service at the early design stage of the product. This technology enable engineers to overlay digital data on physical vehicle and verify the installation requirements on vehicle assembly which will meet the installation quality design (IQD) requirements done between OEM & supplier. For example: wire and tube, other aggregates etc. fitted on vehicle. AR will help to enhance visualization and better feel for vehicle integration and packaging aspects while performing fire path analysis, DMU review, DFA, DFS, signoff, etc. a live case study conducted for better understanding of the AR process. This technology will enhance quality DMU by ensuring sufficient gap/flash with each other as per design guidelines. Keywords: AR, IQA, IQD, DFA, DFS, DMU, OEM, etc.
Singh, Vinay Kumar, Kumar, Rahul, PANDARKAR, PRASHANT, Deep, Shivani Poddar
Analysis of High voltage fuse failures due to reverse surge currents flow in the Power distribution unit of Electric vehicles2026-26-0182To be published on 01/16/2026
Commercial Electric vehicles are revolutionizing the transportation industries with zero emission, lower noise level and increased efficiency. But, High voltage (HV) fuse failures due to reverse surge currents in the Power distribution unit (PDU) hampers the field operation and raise the sensitive safety concerns. This paper embarks on an in-depth exploration of the Reverse surge current flows from the DC-DC converter and Auxiliary (AUX) inverters high voltage input side to Traction system high voltage input point. Failures of HV fuses can lead to the unintentional shutdown of the e-compressor system and steering motor system while operating the EV, which raises critical safety concerns. If the steering motor fails, the bus will lose power steering assistance, making the steering wheel much harder to turn. If the e-compressor fails, it could result in loss of braking assist. This could make it difficult to stop the vehicle, especially in an emergency situation or when driving at high
Bamania, Mihir, kinjalkar, Milind, Amancharla, Naga Chaithanya, Salunke, Pradeep
USCAR-29USCAR-29 (Current)12/04/2025
USCAR-29
USCAR
Test Method for the Determination of Total Acidity in Polyol Ester and Diester Gas Turbine Lubricants by Automatic Potentiometric TitrationARP5088C (Current)11/26/2025
The test method describes the procedure for determination of the total acid number of new and degraded polyol ester and diester based gas turbine lubricants by potentiometric titration technique. The method was validated to cover an acidity range 0.05 to 6.0 mg KOH g-1. The method may also be suitable for the determination of acidities outside of this range and for other classes of lubricant.
E-34 Propulsion Lubricants Committee
Standardized composite training programAIR6671 (Current)11/26/2025
SAE CACRC has produced several standards, each representing the best-practice, recommended minimum training syllabus for the aforementioned target groups. The purpose of this document is to promote the use of these SAE standards, particularly for developing training programs for employee training, qualification in airlines and maintenance organizations, and as reference in regulatory guidance material. It summarizes, as a quick reference, the content of each training document and its relation to and interaction with other training documents. Thereby it allows users to select the appropriate training documents and syllabi to establish a comprehensive, sequential training program build-up customized to the specific needs of the aforementioned functions (see figure). This document does not intend to introduce new training content/syllabus.
AMS CACRC Commercial Aircraft Composite Repair Committee
Aluminum Bronze, Centrifugal and Chill Castings 85Cu - 11Al - 3.6Fe As CastAMS4870G (Current)11/25/2025
This specification covers an aluminum bronze alloy in the form of centrifugal and chill castings.
AMS D Nonferrous Alloys Committee
Castings, Leaded Bronze, Sand and Centrifugal 80Cu - 10Sn - 9.5Pb As CastAMS4842G (Current)11/25/2025
This specification covers a leaded bronze in the form of sand and centrifugal castings.
AMS D Nonferrous Alloys Committee
Aluminum Alloy, Sheet and Plate, 6.3Cu - 0.30Mn - 0.06Ti - 0.10V - 0.18Zr, Solution Heat Treated, Cold Worked and Naturally Aged (2219 -T31/-T351)AMS4601B (Current)11/25/2025
This specification covers an aluminum alloy in the form of sheet and plate.
AMS D Nonferrous Alloys Committee
Aluminum Alloy, Die Castings 8.5Si - 3.5Cu (A380.0-F) As Cast AMS4291K (Current)11/21/2025
This specification covers an aluminum alloy in the form of die castings.
AMS D Nonferrous Alloys Committee
Aluminum Alloy, Die Castings 9.5Si - 0.50Mg (360.0-F) As Cast AMS4290N (Current)11/21/2025
This specification covers an aluminum alloy in the form of die castings.
AMS D Nonferrous Alloys Committee
Grease, Aircraft, General Purpose, Low Temperature Range, Lithium ThickenedAMS3052B (Current)09/30/2025
Committee AMS-M is establishing an Industry Managed Qualification Program through the remit of the Performance Review Institute which requires this specification to be revised to reference the qualification process and controlling documentation.
AMS M Aerospace Greases Committee
Specification for Aero and Aero-Derived Gas Turbine Engine LubricantsAS5780E (Current)09/24/2025
This specification defines basic physical, chemical, and performance limits for 5 cSt grades of gas turbine engine lubricating oils used in aero and aero-derived marine and industrial applications, along with standard test methods and requirements for laboratories performing them. It also defines the quality control requirements to assure batch conformance and materials traceability, and the procedures to manage and communicate changes in oil formulation and brand. This specification invokes the Performance Review Institute (PRI) product qualification process. Requests for submittal information may be made to the PRI at the address in Appendix D Section D.2, referencing this specification. Products qualified to this specification are listed on a Qualified Products List (QPL) managed by the PRI. Additional tests and evaluations may be required by individual equipment builders before an oil is approved for use in their equipment. Approval and/or certification for use of a specific gas
E-34 Propulsion Lubricants Committee
Testing a loooooooooooooooooooooooong alternateExternalId - 7ARP07182025-7-0000000000000000001 (Current)07/18/2025
Testing a loooooooooooooooooooooooong alternateExternalId - 7
A-5B Gears, Struts and Couplings CommitteeNEW
The Logistic Lasso and Ridge Regression Algorithm-Based Airline Passenger Satisfaction Prediction Model2025-01-716803/19/2025
Airline passenger satisfaction is important for airline operation service quality management. When airline companies carry out advertisement campaigns or plan a marketing strategy, the resources and budgets are not unlimited. Thus, an airline can only focus on improving a few factors that drive passenger satisfaction. To understand the key satisfies for the young and the old adults, respectively, we leverage five airline passenger satisfaction methods to identify the key factors that explain the airline service satisfaction of different passengers. In particular, we investigate and compare the ridge and the Lasso regularization in terms of the resulting model’s sparsity and computational efficiency. The top three important factors that influence the old’s satisfaction are departure and arrival time convenience, legroom service, and baggage handling. Our findings indicate that the young people place a higher value on entertainment, while the old adults place a higher value on usefulness
Ma, Jie, Hu, Song, Wang, Haipeng
Intelligent Courier Delivery Scheduling Based on XGBoost Feature Selection and Reinforcement Learning: A Case Study Using Chongqing Cainiao Express Data2025-01-717602/21/2025
This study tackles the issue of order delays in logistics using XGBoost for feature analysis and reinforcement learning for intelligent courier scheduling. Pickup order data from May 1 to October 31, 2023, in Chongqing is analyzed using spatio-temporal statistical methods. Key findings include that order placement peaks at 9:00 a.m., delays peak at 10:00 a.m., and the delay rate is 8.6%. A significant imbalance exists between the regional daily average of dispatchable couriers and order volumes.XGBoost is employed to predict order delays, revealing that pickup location is the most influential factor (27%), followed by courier pickup location (22%). These factors and their relationships are identified as key drivers of delays.To address these issues, a reinforcement learning-based courier scheduling optimization model is developed. The model defines courier location, current time, and pending orders as state variables and adopts an epsilon-greedy strategy for action selection
Wang, Manjun, Yu, Xinlian
Arinc Automation Document - Standard Specificiation - PageCount Greater than 475KJH008 (Current)12/19/2024
Arinc Automation Document - Standard Specificiation - PageCount Greater than 475
Airlines Electronic Engineering Committee
Arinc Automation Document - Standard Specificiation - PageCount 210 - 475KJH007 (Current)12/19/2024
Arinc Automation Document - Standard Specificiation - PageCount 210 - 475
Airlines Electronic Engineering Committee
Arinc Automation Document - - Characteristic - PageCount 45 – 100KJH004 (Current)12/19/2024
Arinc Automation Document - - Characteristic - PageCount 45 – 100
Aviation Maintenance Committee
Arinc Automation Document - Standard Information Report - PageCount 151 - 209 KJH006 (Current)12/19/2024
Arinc Automation Document - Standard Information Report - PageCount 151 - 209
Aviation Maintenance Committee
Arinc Automation Document - Standard Information Report - PageCount 101 - 150KJH005 (Current)12/19/2024
Arinc Automation Document - Standard Information Report - PageCount 101 - 150
Flight Simulator Engineering and Maintenance Committee
Arinc Automation Document - Standard Characteristic - PageCount less than 45KJH003 (Current)12/19/2024
Arinc Automation Document - Standard Characteristic - PageCount less than 45
Aviation Maintenance Committee
Revolutionizing Seafood Production with Adaptive RobotsTBMG-5217812/01/2024
Robotic automation technology is reshaping food manufacturing, packaging, and handling by driving significant improvements in efficiency, quality, and flexibility. By integrating advanced artificial intelligence, computer vision, and proprietary force-sensing technology, Flexiv has introduced cutting-edge automation to the food processing sector.
Experimental Study on Quality Control and Variable Valve Timing Strategy of Hydrogen Engine for High Efficiency and Low Emission at Low Load2024-01-509510/15/2024
In order to reduce the pumping loss of low loads and maximize the lean combustion advantage of hydrogen, the paper proposes a load control strategy based on hydrogen mass, called quality control, for improving thermal efficiency and emissions at low loads. The advantages of quality control and the effect of VVT on the combustion performance of hydrogen internal combustion engines under low loads were discussed. The results show that when the relative air–fuel ratio (λ) increases to more than 2.5, the NOx emissions are reduced to less than 3.5 g/kW · h at the brake mean effective pressure (BMEP) below 8 bar, especially when the BMEP is less than 5 bar, the NOx is within 0.2 g/kW · h. Compared to quantity control based on air mass, the quality control strategy based on hydrogen mass achieves over a 2.0% reduction in pumping loss at BMEP levels lower than 4.4 bar. Furthermore, it enhances thermal efficiency by up to 5% at low loads, while maintaining NOx emissions within 0.2 g/kW · h at
Li, Yong, Chen, Hong, Fu, Zhen, Du, Jiakun, Wu, Weilong
An eleventh one for CUR-1174PC11-CUR-1174 (Current)04/02/2024
Italic
Flight Simulator Engineering and Maintenance Committee
Integrated testing at lab from road by doing conversion and correlation between Subjective to objective assessment on ride comfort parameter of gear shifting quality in Two- wheeler.2024-26-032701/16/2024
The evaluations of ride comfort in gear shifting have been known as one of the dominant factors for vehicle quality assessment. However, those factors have not been assessed and analyzed objectively in-depth in conjunction and integration with general ride and handling parameters. In recent, the criteria set by customer have changed on account of heightened expectations, resulting in a growing demand for enhanced ride comfort. the quality of gear shifting experienced by a customer is evaluated subjectively on road leads to difficulty in arriving inferences and taking decisions due to variation in responses of people on the same situation. This study is involved the process of conversion from subjective to objective assessment on gear shifting quality by identifying the objective parameters for contributing the quality of gear shifting feel. Measuring and analyzing those parameters like lever travel, lever effort, and noise while shifting during dynamic condition at vehicle level on
Manoranjan, R., K S, Sreekanth
Big Data Analytics (Telematics) for real time testing improvements and integration back to Development of Future Models/EVs2024-26-035201/16/2024
The Auto industry has relied upon traditional testing methodologies for product development and Quality testing since its inception. As technology changed, it brought a shift in customer demand for better vehicles with the highest quality standards. With the advent of EVs, OEMs are looking to reduce the going-to-market time for their products to win the EV race. Traditional testing methodologies have relied upon data received from various stakeholders and based on the same tests are planned. The data used is highly subjective and lacks variety. OEMs across the world are betting big on telematics solutions by pushing more and more vehicles with telematics devices as standard fitment. The data from such vehicles which gets generated in high levels of volume, variety and velocity can aid in the new age of vehicle testing. This live data cannot be simply simulated in test environments. The device generates hundreds of signals, frequently in a fraction of seconds. Multiple such signals can
Sahoo, Priyabrata, Singh, Saurabh, Prasad, Kakaraparti Agam
Solving Drive Shaft Failure in Electric Vehicles2024-26-033401/16/2024
Inherent capability of electric motors to induce high instantaneous torque & causes high load reversals in electric vehicle drive shafts when subjected to certain road conditions & driving maneuvers, which necessitates specific countermeasures for drive shaft design improvements to achieve optimal sizing of drive shaft joints. This paper discusses systematic approach undertaken for root cause analysis of catastrophic driveshaft failure under specific vehicle testing condition on road with multiple speed breakers, leading to multiple high torque reversals and achieve system robustness with shaft design & process change to increase strength together with software calibration technique to reduce the torque demand upon detection of such operating condition. Vehicle level torque measurement, replication of failure on rig & simulation correlation & process sensitivities are studied before finalizing design & process changes & improvement is confirmed on rig level testing first. New drive
Singh, Deepak Vikram, JACOB, ABIJITH, Paua, Ketan, Vellandi, Vikraman, Mane, Yogiraj
A design Approach to Optimize Suspension Clanking Noise in Electric Cars2024-26-022601/16/2024
Designing an electric car suspension system is a key challenge for all OEMs because balancing buzz, squeak, and rattle (BSR) acoustic performance at low-speed driving and improving ride quality at high-speed driving conditions is difficult. Suspension noise deteriorates in-cab acoustic quietness and overall vehicle performance. For this reason, optimizing these noises is becoming increasingly prioritized as a key design issue throughout the development process of suspension system. This paper studies the various components of suspension system and their noises in an electric car. Based on customer voice index and drive pattern, suspension anomalous clanking noise was identified in Electric Car. This noise phenomenon was cascaded from the vehicle level to BSR rig and eventually to the suspension rig for root cause analysis. At the vehicle level evaluation, clanking noise problematic frequency identification was done for both near suspension source and incab with the help of a sound
Titave, Uttam Vasant, Naidu, Sudhakara, kalsule cEng, Shrikant
Utilizing Computed Tomography for Cell Characterization, Quality Assessment, and Failure Analysis2024-26-018901/16/2024
This abstract presents an experimental study on using Computed Tomography (CT) scan technology for analyzing battery cell failures. Lithium-ion battery cells with known failure modes were subjected to cyclic test under different temperature and C-rates. CT scans provided high-resolution cross-sectional images of internal structures, revealing failure-related features. The advanced image processing techniques quantitatively assessed electrode morphology, active material distribution, and separator integrity. The study demonstrated CT scan's potential in non-destructive analysis, enabling a deeper understanding of failure mechanisms and informing improvements in cell design and manufacturing processes.
Singh, Sathya Prakash, Baidya, Kapil Krishna, ADHALE, Pratik
Fuel Tank System Design Consideration with Low Fuel Filling Circuit Position in Automotive Vehicle2024-26-038001/16/2024
Liquid fuel storage system stores the fuel to facilitate vehicle running for desired range. Fuel system being a safety critical component is designed to endure varied environmental condition and defined robustness for all usage conditions. Liquid fuel system consists of three major systems viz. filling system, storage system and vapor management system. Of the three, filling system’s major function is to assist proper re-fueling of the storage system. Pre-mature shut-off, spillage and fuel spit back are the three major risks associated to judge system performance. In general, fuel filling system is connected to fuel tank via inlet pipe which houses a flapper to avoid fuel spillage from filler neck. Fuel filling creates positive pressure inside the tank which causes tank to bulge. In process of regaining the shape fuel is pushed out of the inlet pipe to neck which might cause spillage. A one-way valve mechanism (flapper) is added to restrict fuel spillage. In models where fuel neck
BAGGA, RAJAT, BADYAL, ROCHAK, Rawat, Mohit, Pal, Kiran
Simulation methodology development for vibration test of Bus Body Structure code AIS 153:20182024-26-024901/16/2024
A bus is integral part of public transportation in both rural and urban areas. It is also used for scheduled transport, tourism, and school transport. Buses are common mode of transport all over the world. The growth in economy, the electrification of public transport, demand in shared transport, etc., is leading to a surge in the demand for buses and accelerating the overall growth of the bus industry. With increased number of buses, the issue of safety of passengers and the crew assumes special importance. The comfort of driver and passenger in the vehicle involves the vibration performance and therefore, the structural integrity of buses is critically important. The bus safety act depicts the safety and comfort of bus operations, management of safety risks, continuous improvement in bus safety management, and public confidence in the safety of bus transport, appropriate stakeholder involvement and the existence of a safety culture among bus service providers. In order to provide
Bijwe, Vilas B., Mahajan, Rahul, Vaidya, Rohit, Patel, Kaustubh, Hiwale, Diwakar, Walke, Abhijit Ashok
Characterization and Prediction of Interior Noise Quality in Electric Vehicles through Drive Unit End-of-Line Testing (EOLT)2025-01-003905/05/2023
This paper addresses the critical aspect of interior noise quality in electric vehicles (EVs), focusing on the characterization and prediction methodologies employed during drive unit end-of-line testing. The electric drive unit plays a pivotal role in determining the overall Noise, Vibration, and Harshness (NVH) quality of the final product. This study explores the impact of drive unit assembly process variation and individual component tolerance on the NVH characteristics of electric drive units, emphasizing their direct effect on overall vehicle acoustic quality and customer comfort. The research delves into the intricate relationship between drive unit vibrational response, vehicle interior noise, and customer subjective perception, providing valuable insights into their correlation and how they collectively influence user experience and satisfaction. It aims to enhance the understanding of how electric drive unit characteristics contribute significantly to the interior noise
Arvanitis, Anastasios, Parbat, Aniket, Jadhav, Prashant, Raphael, Andrew
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