Download or read book Modeling and Control for Advanced Automotive Thermal Management System written by Luke Andrew DeBruin and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This research investigates the design and implementation of a light-duty truck's thermal management system control strategy developed from model-based techniques. To give robust durability and improve fuel economy, the control strategy must stabilize the dynamics of the engine operating temperatures, while also minimizing the energy consumed by the system. First, a detailed plant model is obtained by applying first principle physics (conservation laws) to model the thermal management system from its key components. The component models are combined to accurately predict the flow rates and temperatures of the system. The thermal system model is fed by a vehicle drivetrain mechanical model that calculates the heat rejection to the thermal model through a backward-looking approach. The nonlinear model is calibrated on supplier data and validated using experimental data recorded by a vehicle data acquisition system. Information from the engine control unit, flow rates, and temperatures were previously recorded for various driving profiles while the vehicle operated on a chassis dynamometer according to standard test procedure. The model accurately predicts the temperature dynamics of the system during transient operations of fully-warm drive cycles. Specifically, the Environmental Protection Agency's Federal Test Procedure for a highway drive cycle was used to test the model validity. The validated model provides a benchmark for comparing new controllers to the baseline thermal management control.

Download or read book MATLAB Simulink Framework for Modeling Complex Coolant Flow Configurations of Advanced Automotive Thermal Management Systems Preprint written by and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The National Renewable Energy Laboratory's (NREL's) CoolSim MATLAB/Simulink modeling framework was extended by including a newly developed coolant loop solution method aimed at reducing the simulation effort for arbitrarily complex thermal management systems. The new approach does not require the user to identify specific coolant loops and their flow. The user only needs to connect the fluid network elements in a manner consistent with the desired schematic. Using the new solution method, a model of NREL's advanced combined coolant loop system for electric vehicles was created that reflected the test system architecture. This system was built using components provided by the MAHLE Group and included both air conditioning and heat pump modes. Validation with test bench data and verification with the previous solution method were performed for 10 operating points spanning a range of ambient temperatures between -2 degrees C and 43 degrees C. The largest root mean square difference between pressure, temperature, energy and mass flow rate data and simulation results was less than 7%.

Download or read book MATLAB Simulink Framework for Modeling Complex Coolant Flow Configurations of Advanced Automotive Thermal Management Systems written by and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The National Renewable Energy Laboratory's (NREL's) CoolSim MATLAB/Simulink modeling framework was extended by including a newly developed coolant loop solution method aimed at reducing the simulation effort for arbitrarily complex thermal management systems. The new approach does not require the user to identify specific coolant loops and their flow. The user only needs to connect the fluid network elements in a manner consistent with the desired schematic. Using the new solution method, a model of NREL's advanced combined coolant loop system for electric vehicles was created that reflected the test system architecture. This system was built using components provided by the MAHLE Group and included both air conditioning and heat pump modes. Validation with test bench data and verification with the previous solution method were performed for 10 operating points spanning a range of ambient temperatures between -2 degrees C and 43 degrees C. The largest root mean square difference between pressure, temperature, energy and mass flow rate data and simulation results was less than 7%.

Download or read book Modeling Validation and Analysis of an Advanced Thermal Management System for Conventional Automotive Powertrains written by Neeraj R. Agarwal and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Reducing vehicle fuel consumption while maintaining same or better performance characteristics has been one of the main focuses of auto car manufacturers. In this sense, OEMs are introducing thermal management system (TMS) in modern vehicles that help attain rapid fluid warm-up during cold-start conditions. This leads to lower fluid viscosities early on in a drive cycle and hence reduced losses in the engine and powertrain components, resulting in lower fuel consumption. Rapid fluid warm-up also helps improve passenger comfort by providing necessary heating or cooling on demand. Through this work, a model characterizing the low frequency energy and power transfer in the engine and powertrain components is formulated. An advanced TMS consisting of components for waste heat energy recovery is proposed and its model is formulated. The combined set of these models is called the Vehicle Energy Simulator (VES). The model is thoroughly calibrated and validated using experimental data from steady state and transient testing; results are included in detail. The validated VES is then used to investigate control strategies for valves that are part of the TMS, used to control fluid flow to the various heat exchangers in order to attain rapid warm-up of coolant, engine oil and transmission fluid. It is seen that, the use of advanced TMS, over a conventional thermal management system, results in 3.4% reduction in fuel consumption. The investigation leads to recommendation of a reasonable first generation for a genetic algorithm optimization to be used to find the "optimal trajectory" for thermal-system-valve actuation during a drive cycle for reducing fuel consumption.

Download or read book Model based Control Development for an Advanced Thermal Management System for Automotive Powertrains written by Kyle I. Merical and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: On the other hand, robust and accurate TMS controllers must be developed in order to take full advantage of the additional degrees of freedom provided by the available actuators and system hardware configuration.

Download or read book Comprehensive Energy Management Safe Adaptation Predictive Control and Thermal Management written by Daniel Watzenig and published by Springer. This book was released on 2017-06-13 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book discusses the emerging topic of comprehensive energy management in electric vehicles from the viewpoint of academia and from the industrial perspective. It provides a seamless coverage of all relevant systems and control algorithms for comprehensive energy management, their integration on a multi-core system and their reliability assurance (validation and test). Relevant European projects contributing to the evolvement of comprehensive energy management in fully electric vehicles are also included. This volume includes contributions on model based functional safety and fault-tolerant E/E architectures, advanced control making use of external information (from a cloud) as well and thermal management as a central part for energy optimization and finally some aspects on fuel cells. The second volume (ISBN .....) includes chapters on ECO driving and ECO routing covering different approaches for optimal speed profiles for a given route (mostly interconnecting with cloud data).

Download or read book Thermal Management in Automotive Applications written by T Yomi Obidi and published by SAE International. This book was released on 2015-03-30 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: With new and more stringent standards addressing emission reduction and fuel economy, the importance of a well-developed engine thermal management system becomes even greater. With about 30% of the fuel intake energy dissipated through the cooling system and another 30% through the exhaust system, it is to be expected that serious research has been dedicated to this field. Thermal Management in Automotive Applications, edited by Dr. T. Yomi Obidi, brings together a focused collection of SAE technical papers on the subject. It offers insights into how thermal management impacts the efficiency of engines in heavy vehicles, the effects of better coolant flow control, and the use of smart thermostat and next-generation cooling pumps. It also provides an in-depth analysis of the possible gains in optimum warm-up sequence and thermal management on a small gasoline engine. With continuously increasing gadgetry in modern vehicles, the average temperature in the engine compartment has seen significant increase. It is important to be able to divert the heat away from passengers as well as from some components that may be negatively impacted by excessive temperatures. Thermal Management in Automotive Applications points out solutions to this challenge, including material and design options.

Download or read book Vehicle Power Management written by Xi Zhang and published by Springer Science & Business Media. This book was released on 2011-08-12 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vehicle Power Management addresses the challenge of improving vehicle fuel economy and reducing emissions without sacrificing vehicle performance, reliability and durability. It opens with the definition, objectives, and current research issues of vehicle power management, before moving on to a detailed introduction to the modeling of vehicle devices and components involved in the vehicle power management system, which has been proven to be the most cost-effective and efficient method for initial-phase vehicle research and design. Specific vehicle power management algorithms and strategies, including the analytical approach, optimal control, intelligent system approaches and wavelet technology, are derived and analyzed for realistic applications. Vehicle Power Management also gives a detailed description of several key technologies in the design phases of hybrid electric vehicles containing battery management systems, component optimization, hardware-in-the-loop and software-in-the-loop. Vehicle Power Management provides graduate and upper level undergraduate students, engineers, and researchers in both academia and the automotive industry, with a clear understanding of the concepts, methodologies, and prospects of vehicle power management.

Download or read book Vehicle Thermal Management Systems VTMS 4 written by IMechE (Institution of Mechanical Engineers) and published by Wiley. This book was released on 1999-03-12 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text presents the proceedings of a conference held to discuss the field of vehicle thermal management systems. Subjects covered include: heating and air conditioning; system modelling and control; and aerodynamics and air flow.

Download or read book Modelling Simulation and Control of Thermal Energy Systems written by Kwang Y. Lee and published by MDPI. This book was released on 2020-11-03 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: Faced with an ever-growing resource scarcity and environmental regulations, the last 30 years have witnessed the rapid development of various renewable power sources, such as wind, tidal, and solar power generation. The variable and uncertain nature of these resources is well-known, while the utilization of power electronic converters presents new challenges for the stability of the power grid. Consequently, various control and operational strategies have been proposed and implemented by the industry and research community, with a growing requirement for flexibility and load regulation placed on conventional thermal power generation. Against this background, the modelling and control of conventional thermal engines, such as those based on diesel and gasoline, are experiencing serious obstacles when facing increasing environmental concerns. Efficient control that can fulfill the requirements of high efficiency, low pollution, and long durability is an emerging requirement. The modelling, simulation, and control of thermal energy systems are key to providing innovative and effective solutions. Through applying detailed dynamic modelling, a thorough understanding of the thermal conversion mechanism(s) can be achieved, based on which advanced control strategies can be designed to improve the performance of the thermal energy system, both in economic and environmental terms. Simulation studies and test beds are also of great significance for these research activities prior to proceeding to field tests. This Special Issue will contribute a practical and comprehensive forum for exchanging novel research ideas or empirical practices that bridge the modelling, simulation, and control of thermal energy systems. Papers that analyze particular aspects of thermal energy systems, involving, for example, conventional power plants, innovative thermal power generation, various thermal engines, thermal energy storage, and fundamental heat transfer management, on the basis of one or more of the following topics, are invited in this Special Issue: • Power plant modelling, simulation, and control; • Thermal engines; • Thermal energy control in building energy systems; • Combined heat and power (CHP) generation; • Thermal energy storage systems; • Improving thermal comfort technologies; • Optimization of complex thermal systems; • Modelling and control of thermal networks; • Thermal management of fuel cell systems; • Thermal control of solar utilization; • Heat pump control; • Heat exchanger control.

Download or read book Modeling of an Electric Vehicle Thermal Management System in MATLAB Simulink written by and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of the 2001 Vehicle Thermal Management Systems Conference written by VTMS and published by . This book was released on 2001 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: CONTENTS INCLUDE: Transient Air Conditioning Simulation Using Network Theory Algorithms; An Integrated Air Conditioning (AC) Circuit and Cooling Circuit Simulation Model; Design and Transient Simulation of Vehicle Air Conditioning Systems; Rapid Electrochemical Characterization of Corrosion Properties of Aluminum Brazing Sheet by Stepwise Dissolution Measurement; R134A Suction Line Heat Exchanger in Different Configurations of Automotive Air-Conditioning Systems; Development of Engine Cooling Systems by Coupling CFD Simulation and Heat Exchanger Analysis Programs; Vehicle Thermal Systems Modeling Using FLOWMASTER2; Modeling of Engine Warm-Up with Integration of Vehicle and Engine Cycle Simulation; Progress in the Optimized Application of Simulation Tools in Vehicle Air Conditioning; Identification of the Numerical Model for an Automotive Application Thermostatic Expansion Valve; Evaluating CFD Models of Axial Fans by Comparisons with Phase-Averaged Experimental Data; Flow Visualization Study of an HVAC Module Operated in Water; Advantages of Cooling Airflow Control Devices Used by Internal Combustion Engines; Intake-Valve Temperature Histories During S.I.Engine Warm-Up; Optimization of Vehicle Warm-up Using Simulation Tools; Nanofluids for Vehicle Thermal Management; Heavy Duty Truck Cooling System Design Using Co-Simulation; Economical Engine Cooling System; A Compact Cooling System (CCSTM): The Key to Meet Future Demands in Heavy Truck Cooling; Evaluation of Turbulence Statistics from Engine Cooling Fan Velocity Measurements; Energy Simulation of a Climatic Wind Tunnel; CFD Simulation of Flow and Heat Transfer in Airways; Thermal Management for the HEV Liquid-Cooled Electric Machine; Effect of Soot Loading on the Thermal Characteristics of Diesel Engine Oils; Validation of Methods for Rapid Design and Performance Prediction of Water Pumps; Impact of US02 and Euro4 Emission Legislation on Power Train Cooling Challenges and Solutions for Heavy Duty Trucks; Instabilities Occurring in an Automotive A/C Loop Equipped with an Externally Controlled Compressor and a Thermal Expansion Valve; External Corrosion Resistance of CuproBrazee Radiators; High Performance Climate Control for Alternative Fuel Vehicle; Comparison of CFD Simulation Methods and Thermal Imaging with Windscreen Defrost Pattern; The Impact of Metal-free Solar Reflective Film on Vehicle Climate Control; A Numerical Simulation Strategy for Complex Automotive Cooling Systems; Model Based Analysis of Compressor Valve Leakage and its Effects on the Efficiency of the Motor-Compressor; Application of Mathematical Models to Detect and Diagnose Reciprocating Compressor Valve Leakage; Aging Response and Elevated Temperature Strengthening in Brazing Sheet Core Alloys of 3xxx Series Aluminum; Interactions Between the Materials in the Tube-Fin-Joints in Brazed Copper-Brass Heat Exchangers; A New High Strength Aluminum Alloy for Controlled Atmosphere Brazing; Parking Cooling Systems for Truck Cabins; Effects of Vehicle Windshield Defrosting and Demisting Process on Passenger Comfort; A Comparison of the Hydraulic Performance of Ethylene Glycol and Propylene Glycol Aqueous Solutions as Automotive Coolants; Model Development, Simulation and Validation, of Power Train Cooling System for a Truck Application; Thermal Management Evolution and Controlled Coolant Flow; Optimization Elements for Externally Controlled Air Conditioning Systems; Optimization of Vehicle Air Conditioning Systems Using Transient Air Conditioning Performance Analysis; Development of a High Strength Fin Stock Aluminum Alloy; Development of All-Nylon Charge Air Cooler for Automotive Applications; Method for Predicting and Optimizing the Strength of Extruded Multi-Void Aluminum Heat Exchanger Tube; Comfort-Management; Modeling of Human Thermal Comfort; Engine Cooling System Stability; Advanced Engine Cooling Thermal Management System on a Dual Voltage 42V-14V Minivan; New, High Efficiency, Low Cost Liquid Heat E

Download or read book Vehicle thermal Management Systems Conference and Exhibition VTMS10 written by IMechE and published by Elsevier. This book was released on 2011-05-05 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains the papers presented at the IMechE and SAE International, Vehicle Thermal Management Systems Conference (VTMS10), held at the Heritage Motor Centre, Gaydon, Warwickshire, 15-19th May 2011. VTMS10 is an international conference organised by the Automobile Division and the Combustion Engines and Fuels Group of the IMechE and SAE International. The event is aimed at anyone involved with vehicle heat transfer, members of the OEM, tier one suppliers, component and software suppliers, consultants, and academics interested in all areas of thermal energy management in vehicles. This vibrant conference, the tenth VTMS, addresses the latest analytical and development tools and techniques, with sessions on: alternative powertrain, emissions, engines, heat exchange/manufacture, heating, A/C, comfort, underhood, and external/internal component flows. It covers the latest in research and technological advances in the field of heat transfer, energy management, comfort and the efficient management of all thermal systems within the vehicle. - Aimed at anyone working in or involved with vehicle heat transfer - Covers research and technological advances in heat transfer, energy management, comfort and efficient management of thermal systems within the vehicle

Download or read book Modeling Analysis and Open loop Control of an Exhaust Heat Recovery System for Automotive Internal Combustion Engines written by Ross P. Owen and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: A zero-dimensional fluid and thermodynamic model of an engine, cooling system, and exhaust system was developed in order to simulate the operation of an advanced thermal management system. The model was calibrated with experimental data where available. The thermal management system modeled in this work employed waste heat recovery to reduce engine, coolant, and lubricating fluid warm-up times and fuel consumption following a cold-start. The model was used to develop a control strategy for two valves in the exhaust system which control the flow of exhaust through an exhaust-to-coolant heat exchanger. The objective of the controller was to minimize coolant warm-up time without violating any of the system constraints. A model-based open-loop controller was developed that was able to reduce warm-up time by nearly 35% on the FTP city drive cycle while respecting the limitations of the system.

Download or read book Vehicle Thermal Management written by Gursaran D Mathur and published by SAE International. This book was released on 2004-04-08 with total page 397 pages. Available in PDF, EPUB and Kindle. Book excerpt: The efficiency of thermal systems (HVAC, engine cooling, transmission, and power steering) has improved greatly over the past few years. Operating these systems typically requires a significant amount of energy, however, which could adversely affect vehicle performance. To provide customers the level of comfort that they demand in an energy-efficient manner, innovative approaches must be developed. Vehicle Thermal Management: Heat Exchangers & Climate Control is an essential resource for engineers and designers working on thermal systems, presenting the most recent and relevant technical papers that focus on this important vehicle component. Chapters include: Heating and Air Conditioning Engine Cooling Underhood Thermal Environment Heat Transfer in Engines Heat Exchangers New Technologies

Download or read book Vehicle Thermal Management Control Systems written by Salvador Sermeno Mena and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The increasing complexity of engine cooling systems results in added interactions and disturbances to the performance. Besides, non-propulsion loads (fan, water pump...) draw a significant percentage of the engine's power thus lowering the vehicle's fuel efficiency. Recent studies have shown that by controlling components the efficiency can be improved by adjusting fan speed according to cooling needs, coolant flow, and oil flow. Currently, the Volvo group in order to optimize the performance of their truck's cooling systems had installed new thermal management components. However, problems were found while testing control strategies and a better understanding of the interaction between components is required to prevent this from happening again. In this work, the bond graph approach has been applied for the study of the cooling system of a Heavy duty vehicle and has enabled subsystem interactions to be identified. Based on a simplified model issued from the bond graph, several control strategies have been built. These controllers are based on different control approaches: model predictive control, flatness control, model free control and model free control with reduced order model. These controllers were implemented in a simulation platform in the Matlab/Simulink environment. Results of the implementation of the new advanced control strategies are given. Fuel economy gains ranged between 0.5 and 0.9 %. A structural analysis of the current architecture is also proposed aiming at the optimization of the system. Given the insights from the analysis, an assessment of new concepts for the cooling system architecture is proposed.

Download or read book 16th International Symposium on Advanced Vehicle Control written by Giampiero Mastinu and published by Springer Nature. This book was released on with total page 1016 pages. Available in PDF, EPUB and Kindle. Book excerpt: