Advanced Propulsion/Powertrain Technical Sessions - Program - WCX™ World Congress Experience

Advanced Propulsion/Powertrain Technical Sessions

Session Title

Session Description

0-D and 1-D Modeling and Numerics

Separate sub-sessions cover zero-dimensional, one-dimensional, and quasi-dimensional models for simulation of SI and CI engines with respect to: engine breathing, boosting, and acoustics; SI combustion and emissions; CI combustion and emissions; fundamentals of engine thermodynamics; numerical modeling of gas dynamics; thermal management; mechanical and lubrication systems; system level models for controls; system level models for vehicle fuel economy and emissions predictions.

Multi-Dimensional Engine Modeling

The spectrum of papers solicited for this session reflect the truly multi-disciplinary nature of the field of Multi-Dimensional Engine Modeling. The session covers advances in the development and application of models and tools involved in multi-dimensional engine modeling. This includes advances in chemical kinetics, combustion and spray modeling, turbulence, heat transfer, mesh generation, and approaches targeting improved computational efficiency. Papers employing multi-dimensional modeling to gain a deeper understanding of processes related to turbulent transport, transient phenomena, and chemically reacting, two-phase flows are also encouraged.

Control System Design, Calibration and Optimization

This session focuses on powertrain control system design, calibration, optimization, and the design and development of on-board diagnostics (OBD).
Examples of topics include control-oriented modeling, model based or machine learning driven calibration\control\estimation, optimization of the powertrain system and subsystems such as engine, and transmission, OBD monitor strategy design and calibration.

Engine Flows and Combustion Diagnostics

This session features papers that focus on extending and improving various sensors and diagnostic methods that can be employed to examine the flow and combustion processes in both production engines and research environments. Examples of diagnostics of interest include, but are not limited to: PIV, LIF, pressure sensors, ion probes, exhaust gas composition sensors, and various spectroscopic optical techniques.

Powertrain Adaptation for Connectivity and Automation

Rapid advances in driver assistance technologies and the deployment of vehicles with increased levels of connectivity and automation have created multiple opportunities to improve the efficiency of future vehicle fleets. By using onboard sensing and external connectivity such as Vehicle-to-Vehicle (V2V), Vehicle-to-Infrastructure (V2I) and Vehicle-to-Everything (V2X), communication, new opportunities emerge to further improve the powertrain control systems of individual vehicles for fuel economy, performance, or emissions.

High Efficiency IC Engines Concepts

This session focuses on technologies that have to potential for improving the efficiency of internal combustion engines such as advanced combustion, cooled EGR boosting, ignition and direct injection technologies, pressure boosting, intelligent combustion, thermal management, fully variable valvetrains, alternative or modified engine cycles, Variable Compression Ratio, and other new and developing technologies. Papers focused on waste heat recovery are located in sessions HX102 or HX103.  

Recent Developments in China and U.S. Propulsion Systems Technologies

Technical presentation, review and investigation focusing on China and U.S. market, including powertrain technology roadmap, regulation review, product development and localization, off road applications, new technology evaluation etc., covering both conventional and alternative vehicle propulsion systems technologies.

Combustion in Spark Ignition Engines

This session focuses on classical SI combustion characterized by ignition by an external energy source that serves to control combustion phasing and a combustion rate that is determined by flame propagation. The scope of topics includes efficiency, emissions, knock, preignition, ignition strategies, fuel / additive effects, and dilution (lean or EGR). Both 4-stroke and 2-stroke engines are included. Papers describing experimental or applied simulation results are invited and will be placed in appropriate sub-sessions. Papers with an emphasis on the modeling aspects of combustion are encouraged to be submitted into PFL110 or PFL120 modeling sessions.

Basic SI Combustion Processes

This session focuses on basic SI combustion processes including studies of mixture formation, engine efficiency, flame propagation, and emissions formation. Papers cover both 4-stroke and 2-stroke engines characterized by 1) ignition by an external energy source that serves to control combustion phasing, and 2) a combustion rate that is limited by flame propagation.

Abnormal SI Combustion (Knock)

This session addresses abnormal SI combustion processes with a focus on spark knock. Papers cover both 4-stroke and 2-stroke engines characterized by 1) ignition by an external energy source that serves to control combustion phasing, and 2) a combustion rate that is limited by flame propagation.

SI Combustion Ignition

This session focuses on the SI combustion ignition process and advanced ignition systems. Papers cover both 4-stroke and 2-stroke engines characterized by 1) ignition by an external energy source that serves to control combustion phasing, and 2) a combustion rate that is limited by flame propagation.

Dilute SI Combustion

This session focuses on the dilute SI combustion processes including lean, stratified, and EGR operation. Papers cover both 4-stroke and 2-stroke engines characterized by 1) ignition by an external energy source that serves to control combustion phasing, and 2) a combustion rate that is limited by flame propagation.

Abnormal SI Combustion (Preignition)

This session deals with low-speed, stochastic preignition on boosted engines (SPI, LSPI). The focus is primiarily on fuel and lubricant impacts on the propensity and severity of SPI/LSPI. Additional presentations cover the role of oil dilution and assessment of SPI/LSPI under real-world, transient conditions.

Combustion in Compression-Ignition Engines

Classical diesel engine combustion with relatively short ignition delay,  including papers dealing with low CR and high EGR calibrations. Papers describing experiments and test data, simulation results focused on applications, fuel/additive effects, combustion control, and mode change are invited and will be placed in appropriate sub-sessions. Papers with an emphasis on the modeling aspects of combustion are located in sessions PFL110 or PFL120.

Homogeneous Charge Compression Ignition, HCCI

Classical HCCI combustion with temperature controlling combustion onset and only a modest effect of fuel injection. Papers describing experiments and test data, simulation results focused on applications, fuel/additive effects, combustion control, and mode change are invited and will be placed in appropriate sub-sessions. Papers with an emphasis on the modeling aspects of combustion are in sessions PFL 110 or PFL120.

Partially Premixed Compression Ignition, PCCI

Mixed mode with  auto ignition but inhomogeneous charge. Injection-controlled but with EOI before SOC. Papers describing experiments and test data, simulation results focused on applications, fuel/additive effects, combustion control, and PPC injection strategies are  invited and will be placed in appropriate sub-sessions. Papers with an emphasis on the modeling aspects of combustion are located in sessions PFL110 or PFL120 .

Dual Fuel Combustion

Mixed mode using more than one fuel not fully mixed before combustion. Most often with auto ignition of spray injected late. Papers describing experiments and test data, simulation results focused on applications, fuel/additive effects, and RCCI (Reactivity-Controlled Compression Ignition) are invited and will be placed in appropriate sub-sessions. Papers with an emphasis on the modeling aspects of combustion are encouraged to be submitted into PFL110 or PFL120 modeling sessions.

Combustion in Gaseous-Fueled Engines

This session focuses on fuel injection, combustion, performance, and emissions of engines fueled with gaseous fuels such as methane, natural gas (NG), biogas, producer gas, hydrogen, or hydrogen-NG blends. Ignition approaches of interest include conventional spark, diesel pilot, as well as advanced ignition systems. Fundamental modeling and optical studies that focus on the gaseous fuel combustion process in an engine environment are also of interest.

Combustion Control and Optimization

This session covers engine combustion control and optimization techniques. Topics include engine combustion diagnostics as specialized for control, control methodologies and algorithms, optimization, related combustion sensing, etc.

Cold Start and Transient Emissions Control

This session focuses on both SI and CI combustion and the emissions generated during engine start, catalyst heating and transient engine operation.  Example topics include combustion system and exhaust system design, calibration and control as it applies to cold start capability, catalyst heating and feedgas emissions (NOx, PM/PN, HC, CO and CO2) including the impact of fuel injection equipment, gas exchange, heat flux and heat losses in the exhaust.

Fuel and Additive Effects on Engine Systems

Topics include the effects of fuel and additives on deposit formation, intake system cleanliness, friction, wear, corrosion, and elastomer compatibility. Also covered are effects of fuel specification on drivability, on evaporative emissions, and on the relationship between emissions and drive cycle.

Fuel Injection and Sprays

This session is devoted to experimental and computational work in the area of fuel injection systems and sprays. Topics include: spray characterization, cavitation, multi-phase jet modeling, CFD models for spray processes, wall films and impingement, hydraulic circuit analysis, and dissolved gas effects. Studies of both gasoline and diesel fuel sprays and fuel injection equipment are encouraged.

Alternative and Advanced Fuels

This session focuses on work pertaining to the production and fundamental properties of new fuels and methods for assessing their performance as well as combustion properties in spark and compression ignition engines. This will include work related to the issues of fuel stability, storage and transportation. Examples include diesel fuel stability, lubricity, cold weather issues, and environmental and toxicological impacts.

Automotive Gasoline Engine Lubricants

The industry continues to work on understanding the interaction of lubricating fluids with engine hardware in order to improve vehicle efficiency, durability, and performance. The Engine Lubricants Session presents a variety of papers dealing with advances in engine oils and their relationship to improved hardware performance.

Heavy Duty Diesel Lubricants

This session reviews advancements in heavy-duty engine oil technology and test methodology, focusing on achieving future emissions, durability and fuel efficiency expectations both in North America and Europe.

Driveline Lubricants

Driveline hardware continues to rapidly evolve as automobile manufactures continue to pursue efficiency gains and emission reductions in smaller architectures.  Electrification adds even more diversification.  Concurrently, there is continuing work to understand the interaction of lubricants to these new and changing environments to assure correct performance.  Also, to identify what new lubricant characteristics should be pursued to enable future hardware.  In this session are presented a variety of papers dealing with different applications where the interaction of driveline fluids with equipment is important.

Holistic Session on Fuel Consumption and Fuel Economy

The focus of the session will be the performance of the integrated vehicle systems (i.e., they meet other system requirements such as drivability, criteria pollutants, safety, NVH, etc.) as well as the influence of driving styles and drive cycles. Keywords: Transmission/Driveline, Parastics (e.g., A/C, power steering, EE loads), Aerodynamics, Tires, Weight, Brakes/Hubs, Drive cycles (regulated, customer, Consumer Reports, etc.) Vehicle energy, Overall energy conversion efficiency.

System Integration and Durability

This session encompasses studies in the area of exhaust aftertreatment integration and durability.  Topics of interest include detailed studies on the caveats of aftertreatement system design, integration and performance.  Other topics of interest include studies documenting the challenges and solutions related to durability and robustness of catalytic solutions.

Advanced Catalyst Substrates

Presentations in this session cover the systems engineering experiences required to achieve ultra-low emission levels on gasoline light-duty vehicles. Emission system component topics for this session include the development of advanced three-way catalysts, low mass ceramic substrates, advanced air/fuel sensors, and a three-way catalyst temperature estimation model.

Advances in Particulate Filter Substrates

The papers in this session cover diesel oxidation catalyst face plugging, diesel particulate filter design (catalyst membrane and next generation cordierite), pressure drop modeling and configurations for meeting BS-IV emission levels. There are also two papers on gasoline particulate filters investigating regeneration frequency and requirements for GPF in hybrid cars.

Advances in Nox Reduction Technology

These sessions will focus on ‘Advances in NOx Reduction Technology’. The topics covered will include: new materials for Lean NOx Traps (LNT) and Selective Catalytic Reduction (SCR); system integration and durability; advances in NOx catalyst substrates, novel reductants and mixing designs.

On-board Measurement and Control

This technical session will focus on internal combustion engine emissions measurement and control. Papers and presentations will cover topics that discuss varying methods of emissions control and data acquisition during operation of vehicles and engines. Topics will also include various advanced analysis techniques to determine emissions levels and reduce emissions.

Meeting the ARB Low Emission Standard

This session focuses on technologies relevant to meeting future heavy duty and off highway low NOx standards.  Presentations will include component level discussions catalysts, reductant injection systems, and thermal management devices.  System level presentations for aftertreatment system control and thermal management are also included.

New CI & SI Engines and Components

This session covers topics regarding new CI and SI engines and components. This includes analytical, experimental, and computational studies covering hardware development as well as design and analysis techniques.

Engine Boosting Systems

This session addresses advanced boosting systems for increasingly downsized, hybridized, and electrified engines, to achieve enhanced power density, better fuel economy, and reduced emissions. Contributions cover model-based and experimental studies on topics ranging from components (e.g. turbocharger turbines and compressors) to systems integration, optimization and control.

CI & SI Power Cylinder Systems

This session covers the Power Cylinder: piston, piston rings, piston pins, and connecting rods. The papers include information on reducing friction and increasing fuel economy, improving durability by understanding wear, and decreasing oil consumption and blow-by.

Small Engine Technology

In this session, research and development of small engine technology will be covered.
Topics include all vehicles equipped with small engines such as Motorcycle, Personal Mobility Vehicle,  Recreational Vehicle, Utility Vehicle and Unmanned Vehicle, etc..
Internal combustion engines and new energy sources such as Hybrid Drive, Electric Drive, Fuel Cells and Solar Cells are considered.

Powertrain NVH

This session sets out to reflect the recent advances on the research, development and practices of Powertrain NVH treatment. The technical papers are of interest to powertrain system designers, testing specialists, NVH experts, and other individuals who evaluate and develop technologies to control powertrain NVH. The coverage includes: engine, engine subsystem and components noise and vibration; powertrain systems noise measurement and instrumentation; powertrain systems noise analysis.

Powertrain Actuators and Sensors

Topics cover actuator and sensor mechanisms, devices, and systems; and the impact and control of such actuation and sensing systems on Powertrain thermodynamics, combustion, fuel economy, emissions, and performance.

Valvetrain, including VVA

The design, development, and testing of Valve Train and Variable Valve Actuation mechanisms, devices, and systems; and the impact and control of such systems on thermodynamics, combustion, fuel economy, emissions, noise and vibration, and performance.

Engine Block, Cylinder Heads, Oil & Water Pumps, Intake & Exhaust Systems

This session describes the design, modeling and performance validation of cylinder heads, lubrication systems and pumps, coolant systems and pumps, intake manifolds, exhaust manifolds, crankshaft and bearing systems and engine block structures.`

Technical Expert Panel Discussion: Future of Personal Mobility NVH

The automotive industry continues to develop new powertrain and vehicle technologies aimed at reducing overall vehicle-level fuel consumption. Powertain technologies will include advances in convention engines and transmissions while vehicle technologies will involve the use of advanced materials and lightweight designs. Specifically, the use of electrified propulsion systems is expected to play an increasingly important role in helping OEM’s meet fleet CO2 reduction targets for 2025 and beyond. This will also include a strong growth in the global demand for electric drive units (EDUs), and various types of hybrid propulsion systems. In addition, there is significant development in the areas of vehicle connectivity, automated driving, ADAS functionalities, and shared mobility. The confluence of megatrends in all these areas will continue to generate new mobility concepts that will have new NVH challenges and needs. A panel of NVH experts from the industry will be convened to discuss the importance of NVH in the context of future personal mobility. 

Transmission Systems/ Drive Unit

This session is seeking papers on the automotive transmissions of different types. It includes development of new transmission concepts, transmission enhancements and the advancement of the state of the art of transmission system design & integration with the objective of improving the transmission efficiency, NVH, durability and shift pleaseability.

AWD/ 4WD/ Driveline Components

This session will present papers on innovative designs, analysis and models of driveline components. This includes AWD / 4WD units, drive shafts, axles, rear drive units, axle disconnect systems, etc.. Specifically, papers on rear axle efficiency, rear axle cover bolt optimization, rear axle heat exchanger, front to rear power distribution and development of a transmission bushing will be presented.

IVT/ CVT

This Session presents papers on IVT/CVT systems and related topics.

Driveline Controls

This session is seeking papers on transmission and driveline controls. This includes topics related to controls hardware, controls software, and controls integration.

Launch Devices

This is session seeking papers on torque converter, launch devices and related modeling.

Driveline NVH

This session is seeking papers on transmission noise, vibration, rattle issues and design solutions.

Driveline Components/ Subsystems

This session is seeking papers on the full array of transmission and driveline related components.

Driveline Modeling

This session is seeking papers focusing on transmission and driveline modeling, including topics related to transmission hardware, software, and system integration.

Advanced Hybrid and Electric Vehicle Powertrains

This session covers new production and near-production hybrid propulsion, hybrid architecture, testing, analysis and new concepts.

Advanced Fuel Cell Vehicle Applications

This session covers advancements in PEM fuel cell applications in vehicles  including, but not limited to: advanced materials for cell or stack components, balance of plant (BOP) components, stack or system design, control strategies, modeling, testing, diagnostics and lifetime monitoring, hydrogen safety, durability, economics/cost reduction, and system integration/optimization. These topics can be addressed at the cell, stack, system or vehicle levels. A special focus on durability of stack and BOP components is also planned and topics covering accelerated tests and operating strategies to improve durability are encouraged.

Advanced Battery Technologies

This session focuses on advanced battery technologies, including, but not limited to: advanced materials and cell chemistries, battery management systems and controls, modeling, testing, diagnosis and health monitoring, safety, reliability, durability, battery charging, battery economics/cost reduction, and system integration/optimization. These topics can be addressed at the cell, module, pack or vehicle levels.

Electric Motor & Power Electronics

Power electronics and electric motors are essential for improving vehicle efficiency through drivetrain electrification. Technologies that support high efficiency, high power density, and low cost motors and power modules are required for the success of vehicle electrification.

Controls for Hybrids and Electric Powertrains

This session covers propulsion control processes related to achieving stringent market fuel economy, emissions, performance, reliability, and quality demands of hybrid and electric powertrains. Topics include the control, calibration, and diagnostics of the engine, powertrain, and supporting electromechanical subsystems related to energy management.

Technical Expert Panel Discussion: Military Vehicle Electrification Technologies

Recent innovations in automation, weapon systems, protection and sensing suites requires versatile vehicle electrification systems to advance combat capability, maneuverability, survivability and lethality.  In support of this, this session will also present papers on the review of Army’s version for electrification of combat vehicles. The one-day event will be opened with keynote from the Army’s ground Vehicle Center (GVSC) leadership, GVSC technical experts, the Next Generation Combat Vehicle CFT, and industry insiders. The topics to be discussed include Advanced batteries, Hybrid / All electric military vehicle powertrain, Power electronics and electric motors, Control systems, Modeling & simulation, Cyber security, Vehicle architecture, and other related military vehicle electrification technologies. This session will also present papers on the review of Army’s version for electrification of combat vehicles.

Propulsion Domain Controlled Architecture

This session focuses on Propulsion Domain Control being the central Strategic Controls Architectural Element of a Propulsion and/or Vehicle Control System, for all Propulsion System topologies.   Topics include all aspects of Domain Control related to Propulsion, Vehicle, and Autonomous Vehicle control including Controls Functional Architecture, E/E Hardware Architecture, SW Architecture, inter-module communication, fault tolerance, fail-safe, diagnostics, as well as the impacts of implementing a Domain Controlled Architecture.

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