Predict transmissions systems performance and meet fuel economy, drivability and nvh objectives using system simulation. Simulation results showed that a slip of 30 rpm would fail to meet the nvh target while a slip of 40 rpm or greater would meet the target. Simulation research on a novel control strategy for fuel cell. Openfcst builds on top of the opensource finite element libraries deal. One factor excluded from this study is the simulation of the additional. Data and insights on these parameters and more must be gathered from realworld experiments in order to construct accurate software models and improve the accuracy and utility of simulation. In auto design, fuel economy saves money but silence is. Fuel economy calculator is probably the most detailed program for predicting the effects of modifications of fuel efficiency. Study of emissions and fuel economy for parallel hybrid. Previously held role of fuel economy simulation software development engineer from 1120 to 102017 with similar responsibilities was lead developer responsible for the development, maintenance. Fuel economy simulation for the vehicle fleet forecasting the fuel consumption of an entire vehicle fleet has become a crucial challenge for all car manufacturers. The model documentation provides details on how to install and use the model. In the study, physics models were developed using msc. The simulation demonstrated that 40 rpm slip was the optimal tradeoff between nvh and fuel economy.
A computer program to simulate fuel consumption and emissions for heavy. Traffic simulations could improve environment, fuel economy. Mar 15, 2019 download advanced vehicle simulator for free. Vehicle simulation software can be used for the prediction of fuel consumption and co 2 emissions from hdvs under various operating conditions, as long as sufficiently detailed models are provided and the necessary input data and parameters are available. Both simulation studies and test procedures are performed based on drive cycles bata and yacoub 2000. All versions of the program create power curves that integrate into performance trends vehicle simulation programs such as drag race analyzer, circle track analyzer, or a fuel economy calculator.
Engineers also studied related assemblies to gauge the effects of slipping on passenger comfort. On top compared to commercial software packages, the code gives more flexibility on engine control using various fuel compositions. Simulation results fuel economy vsvehicle weight at 0. Ze zhou is a senior application engineer and product marketing manager at free field technologies, an msc software company. The scope also provides the target velocity, engine speed, and brake specific fuel consumption bsfc. Student, delphi automotive systems, bascharage, luxembourg. To designing a certain vehicle, when the total weight, distribution of the load and the tyres are specified, in traditional ways, it needs to do a lot of the dynamic calculation work and numerous experiments to get the parameters of proper engine and power train. Conventional vehicle sparkignition engine fuel economy and. Fuel economy simulation results with gasoline engine downsized to vehicle performance level at etw degraded vehicle acceleration performance vs. To simplify the study process and shorten test cycles, a car fuel economy simulation forecast method for combining computer simulation forecasting with bench tests is proposed.
Development of new fuelefficient driving strategies requires extensive exp. According to the established range extender control strategy for the fuel cell extendedrange commercial vehicle, the simulation calculation runs on the simulation platform. Giving a focus on transmission design is a crucial element to help with fuel economy and pollutant emission reduction. Oct 01, 2018 evaluating effects of exhaust heat recovery systems on fuel economy and emissions computational sciences experts group, ann arbor, michigan the exhaust heat recovery system ehrs in an automobile captures the thermal energy from exhaust and transfers it to the engine coolant.
Modeling and simulation department of energy energy. By junmei shi, simulation team leader and pablo lopez aguado, ph. These simulation models were compared to base models by reducing engine size and vehicle weight by 5%, 10%, and 20%. Optimizing vehicle performance and fuel economy through system level simulation r. As a worldleading manufacturer of commercial engines and related. A computer program to simulate fuel consumption and emissions for heavy trucks in long haulage has been created, using the objectoriented software. Jan 24, 2015 all versions of the program create power curves that integrate into performance trends vehicle simulation programs such as drag race analyzer, circle track analyzer, or a fuel economy calculator. Philippe hebert is an application engineer at exstream engineers, also an msc. The ability to quickly and easily look at alternatives with co simulation at a time when we are not locked into any particular approach should make it possible to meet performance requirements with a lighter suspension that can improve the fuel economy of the vehicle. Also, several vehicles manufacturer companies such as ford, general motor and about 780 more considered this software as an authentic vehicles model simulation tools to analyze emissions, fuel economy and equipment sizing. Autonomie vehicle system simulation tool argonne national.
Impact of vehicle weight on fuel economy for various vehicle. The best part is an autolinking component that automatically provides an et, 60foot time, mph, lap time, and miles per gallon right in the engine. Evaluating effects of exhaust heat recovery systems on fuel. Simcenter engineering and consulting innovating fuel. Yet, with increasing fuel prices and the upcoming fuel efficiency standard, fuel. The hallmark of ignite is the designoptimization toolbox, seamlessly integrated within the software, which does not require use of addon applications to. This material is posted here with permission of the ieee. Engineers can turn to 1d and cfd solutions to provide the scalable simulation tools that can help make the right energy management choices right from the start. Modelling and simulation is supported from concept phase through detailed powertrain integration with quick turnaround of vehicle performance, fuel economy and emissions prediction. Energy is a fullvehicle simulation software package for strategic planning, competitive assessments, and product target establishment. Simulated fuel economy and performance of advanced. Gem is a free, desktop computer application that estimates the greenhouse gas ghg emissions and fuel efficiency performance of specific aspects of heavyduty hd vehicles. The fuel cell simulation toolbox openfcst is an opensource mathematical modelling package for polymer electrolyte fuel cells. Ricardo software launches full vehicle system modelling and.
Hevs are designed with an onboard energy storage system and a smaller engine than conventional vehicles, which allows the hevs to achieve better fuel economy and fewer emissions. Aug 12, 20 modelling and simulation is supported from concept phase through detailed powertrain integration with quick turnaround of vehicle performance, fuel economy and emissions prediction. You are at energy management decisions influence a variety of factors in heavy equipment development, from fuel consumption and emissions to powertrain choices and thermal system. Study for better vehicle fuel economy in a commercial vehicle. Optimizing vehicle performance and fuel economy through system. Powered by the 3dexperience platform, simulia delivers realistic simulation applications that enable users to reveal the world we live in. Experiment and simulation of mediumduty tactical truck for. The approach is based on using a vsim software vehicle simulation to identify the relative efficiency of each of the vehicle systems, such as. Comparison of engine simulation software for development of. Gtsuite includes several different vehicle simulation modes for use at various stages of the development cycle, such as static analysis for conceptual results. An approach to optimizing vehicle fuel economy is described based on a study of a commercial vehicle. Consulting, software solution and analysis for vehicle energy. Engine friction optimisation using virtual dynamics.
Increasing fuel economy by improved tire design simulia sim. Over the past few years, simulation of the entire vehicle has become an essential means of making precise predictions of the effectiveness of fuel economy measures at bmw. Cosimulation where multiphysics gets real msc software. Fuel economy mileage mpg simulation software program. Advisor is a matlabsimulink based simulation program for rapid analysis of the performance and fuel economy of light and heavyduty vehicles with conventional gasolinediesel, hybridelectric, full. The ability to quickly and easily look at alternatives with cosimulation at a time when we are not locked into any particular approach should make it possible to meet performance requirements with a lighter suspension that can improve the fuel economy of the vehicle. Graham brooks team lead, fuel economy simulation software.
Researchers face difficulties in studying the effects of driveline efficiency on car fuel economy via bench and road tests because of long working periods, high costs, and heavy workloads. Predict transmissions systems performance and meet fuel. In addition to the suite of nreldeveloped simulation and analysis tools, the team uses tools developed by argonne national laboratory, including the greet model, which evaluates various vehicle and fuel combinations on a full fuelcycle basis, and autonomie, a plugandplay powertrain and vehicle model architecture and development environment. Academics, students and industry specialists around the globe use this free simulation software to teach, learn, and explore the world of simulation.
Mar 24, 2011 optimizing vehicle performance and fuel economy through system level simulation r. The main parameters of fuel cell commercial vehicle are shown in table 3, and the selection of power system and main parameters are shown in table 4. Its targeted at users with pedals and mouse users, who can control the amount of accelerator input given. Evaluating effects of exhaust heat recovery systems on fuel economy and emissions computational sciences experts group, ann arbor, michigan the exhaust heat recovery system ehrs in an automobile captures the thermal energy from exhaust and transfers it to the engine coolant. Performance, fuel economy, and emissions gtsuite offers a variety of fuel economy and performance modeling solutions to meet the diverse requirements of simulations including a vehicle. Computer program to calculate mpg for various modifications to the engine, vehicle, road or driving conditions. Apr 10, 20 fuel consumption simulation isnt suited for keyboard driving. Gtsuite can be used to create vehiclelevel simulations with controls, for performance, drivability, fuel consumption and emissions. Vijayalayan, mathworks yet, with increasing fuel prices and the upcoming fuel efficiency standard, fuel economy remains a key challenge for automotive engineers. Experimental test was conducted to collect real world vehicle data to correlate and validate the analytical vehicle model. Producing quality computer tools for racers and engine builders since 1986. Optimizing vehicle performance and fuel economy through. Energy embeds competitive vehicle metrics, fleet build capability, and regulatory analysis into a single, easytouse, cloudbased application. Nrel uses these simulation and analysis tools to evaluate emerging vehicle.
Therefore, it is necessary to assess the vehicles exhaust gas emissions and fuel economy using both simulation studies and laboratory tests. Development of virtual fuel economy trend evaluation process. Impact of vehicle weight reduction on fuel economy for. A study of potential fuel economy technologies to achieve cafe 2025 regulations using fleet simulation modeling software 2015011683 the 2025 corporate average fleet economy cafe fuel economy regulations are a significant challenge to the automotive industry. A computer program vehsim for vehicle fuel economy and. Since both engine and transmission efficiency are reduced during cold start, thermal management strategies are employed on the combined powertrain system. Advisor is a matlabsimulink based simulation program for rapid analysis of the performance and fuel economy of light and heavyduty vehicles with conventional gasolinediesel. A study of potential fuel economy technologies to achieve.
Anylogic is the only generalpurpose multimethod simulation modeling software. Engine friction reduction has always been of interest for improving efficiency and fuel economy. Traffic simulations could improve environment, fuel economy megan vander woude july 27, 2018 impact research anjie liu, a civil engineering graduate student, is using simulation software to help traffic controllers decrease vehicle emissions. Easy 5 simulation software with production cars and trucks from 2008 as base models.
Car fuel economy simulation forecast method based on cvt. Ford motors applies new simulation technology to solve. Anylogic personal learning edition ple is a free simulation tool for the purposes of education and selfeducation. This project holds the latest releases for canonical versions of the advisor software and advanced vehicle simulator. Its application covers energy consumption, performance analysis throughout. Fuel consumption simulation isnt suited for keyboard driving. Vehicle technology simulation and analysis tools transportation. Vehicle performance and fuel economy through system level simulation. Activate model of a seriesparallel hybrid electric vehicle powertrain to evaluate fuel economy and system performance increasing fidelity of vehicle dynamics models activate models of a seriesparallel hybrid electric vehicle powertrain coupled with carsim via the functional mockup interface. The results indicate that the fuel economy is approximately 28 mpg at the end of the drive cycle.
Greenhouse gas emissions model gem for medium and heavy. Simulated fuel economy and performance of advanced hybrid electric and plugin hybrid electric vehicles using inuse travel profiles, vehicle power and propulsion conference vppc, 2010 ieee. Configure the drive cycle source block to run the highway drive cycle hwfet. Barclay, lotus omnivore engine10% better fuel economy than current leading gasoline engines, automotive industries ai, vol. Simulated fuel economy and performance of advanced hybrid. Hybrid and electric vehicles gtsuite offers a unique and comprehensive solution for modeling electrified vehicles throughout all stages of the vehicle design process. Ii, therefore many of its requirements in terms of operating systems and such are the same as for deal. A computer program vehsim for vehicle fuel economy and performance simulation automobiles and light trucks by zub, russell w. Furthermore, autonomie software itself can check the validation of the results for each single simulation. The approach is based on using a vsim software vehicle simulation to identify the relative efficiency of each of the vehicle systems, such as the engine hardware, engine software calibration, trans. Cummins uses simulation software from ansys to reduce weight, improve fuel economy and reduce environmentally harmful emissions of engines the phrase environmentally responsible doesnt seem to fit into a sentence with the terms 18wheel tractor trailer and heavyduty truck. Mar 23, 2015 simulation results showed that a slip of 30 rpm would fail to meet the nvh target while a slip of 40 rpm or greater would meet the target. Armed with advanced knowledge, they can experiment with different shapes and masses to reach a balance between a quiet ride and fuel economy. Improving internal combustion engine emissions and fuel economy performance requires better understanding of the process by which the fuel injection nozzle breaks up the liquid fuel and propels atomized droplets into the cylinder.
A simulation tool for predicting fuel consumption for heavy trucks. Comparison of engine simulation software for development. The simulation for automobile power performance and fuel. The power performance and the fuel economy are both the important indexes of the automobile. The purpose of this study is to investigate the capabilities of commercial engine simulation packages and inhouse matlab code for control optimisation problems.
In addition to the suite of nreldeveloped simulation and analysis tools, the team uses tools developed by argonne national laboratory, including the greet model, which evaluates various vehicle and fuel combinations on a full fuel cycle basis, and autonomie, a plugandplay powertrain and vehicle model architecture and development environment. In game theres a clear difference between flooring it to the target speed and giving it just enough accelerator to get going. In recent years, the automotive industry has increasingly focused on engine friction to meet. Advanced data and model management features allow you to publish libraries of components for fast and efficient vehicle architecture studies.