Sylvain Pagerit - Academia.edu (original) (raw)
Papers by Sylvain Pagerit
Because of their high efficiency and low emissions, fuel-cell vehicles are undergoing extensive r... more Because of their high efficiency and low emissions, fuel-cell vehicles are undergoing extensive research and development. When considering the introduction of advanced vehicles, engineers must perform a well-to-wheel (WTW) evaluation to determine the potential impact of a technology on carbon dioxide and Greenhouse Gas (GHG) emissions and to establish a basis that can be used to compare other propulsion technology and fuel choices. Several modeling tools developed by Argonne National Laboratory (ANL) were used to evaluate the overall environmental and fuel-saving impacts associated with an advanced powertrain configuration. The Powertrain System Analysis Toolkit (PSAT) transient vehicle simulation software was used for pump-to-wheel (PTW) analysis, and GREET (Greenhouse gases, Regulated Emissions and Energy use in Transportation) was used for well-to-pump (WTP) analysis. This paper assesses the impact of FreedomCAR vehicle goals on a WTW energy basis. We will demonstrate that, on th...
SAE Technical Paper Series, 2006
ABSTRACT In 2002, the U.S. Department of Energy (DOE) launched FreedomCAR, which is a partnership... more ABSTRACT In 2002, the U.S. Department of Energy (DOE) launched FreedomCAR, which is a partnership with automakers to advance high-technology research needed to produce practical, affordable advanced vehicles that have the potential to significantly improve fuel economy in the near-term. Advanced materials (including metals, polymers, composites, and intermetallic compounds) can play an important role in improving the efficiency of transportation vehicles. Weight reduction is one of the most practical ways of increasing vehicle fuel economy while reducing exhaust emissions. In this paper, we evaluate the impact of vehicle mass reduction for several vehicle platforms and advanced powertrain technologies, including Internal Combustion Engine (ICE) Hybrid Electric Vehicles (HEVs) and fuel cell HEVs, in comparison with conventional vehicles. We also explain the main factors influencing the fuel economy sensitivity.
SAE Technical Paper Series, 2007
SAE Technical Paper Series, 2006
Argonne National Laboratory (ANL), working with the FreedomCAR Partnership, maintains the hybrid ... more Argonne National Laboratory (ANL), working with the FreedomCAR Partnership, maintains the hybrid vehicle simulation software, Powertrain System Analysis Toolkit (PSAT). The importance of component models and the complexity involved in setting up optimized control laws require validation of the models and control strategies. Using its Advanced Powertrain Research Facilities (APRF), ANL thoroughly tested the 2004 Toyota Prius to validate the PSAT drivetrain. In this paper, we will first describe the methodology used to quality check test data. Then, we will explain the validation process leading to the simulated vehicle control strategy tuning, which is based on the analysis of the differences between test and simulation.
SAE Technical Paper Series, 2010
Model-based control system design improves quality, shortens development time, lowers engineering... more Model-based control system design improves quality, shortens development time, lowers engineering cost, and reduces rework. Evaluating a control system's performance, functionality, and robustness in a simulation environment avoids the time and expense of developing hardware and software for each design iteration. Simulating the performance of a design can be straightforward (though sometimes tedious, depending on the complexity of the system being developed) with mathematical models for the hardware components of the system (plant models) and control algorithms for embedded controllers. This paper describes a software tool and a methodology that not only allows a complete system simulation to be performed early in the design cycle, but also greatly facilitates the construction of the model by automatically connecting the components and subsystems that comprise it. A key element of this technique is the software-in-the-loop (SIL) capability, which permits compiled legacy source code to be incorporated into the simulation environment, thus allowing the inclusion of algorithm functionality for which no simulation models exist. With this approach, the control system can be developed early in the vehicle or powertrain design cycle, incorporating plant models, algorithm models, existing controller code, and architectural constructs that greatly expedite the creation of a system simulation that can be used for algorithm development, testing, and validation. An application of this methodology at General Motors Powertrain is described in detail.
SAE Technical Paper Series, 2008
... Abstract. The US Department of Energy (DOE) has invested considerable research and developmen... more ... Abstract. The US Department of Energy (DOE) has invested considerable research and development (R&D) effort into Plug-in Hybrid Electric Vehicle (PHEV) technology because of the potential fuel displacement offered by the technology. ...
Plug-in Hybrid Electric Vehicles (PHEVs) have the ability to drastically reduce petroleum use. Th... more Plug-in Hybrid Electric Vehicles (PHEVs) have the ability to drastically reduce petroleum use. The FreedomCAR Office of Vehicle Technology is developing a program to study the potential of the technology. The first step in the program is to define the ...
20th International Electric …, 2004
Internal combustion engine (ICE) hybrid electric vehicles (HEVs) have been recently introduced in... more Internal combustion engine (ICE) hybrid electric vehicles (HEVs) have been recently introduced in the market place, offering higher fuel economy than current conventional vehicles. Concurrently, because of their high efficiency and low emission ...
22nd Electric Vehicle …, 2006
Plug-in hybrid electric vehicles (PHEVs) have demonstrated the potential to significantly increas... more Plug-in hybrid electric vehicles (PHEVs) have demonstrated the potential to significantly increase fuel economy. However, the overall efficiency of the powertrain system of any Hybrid Electric Vehicle (HEV) depends on the vehicle-level control strategy. To ...
Standard cycles provide an easy way to evaluate the energy consumption of vehicles, but it is the... more Standard cycles provide an easy way to evaluate the energy consumption of vehicles, but it is the energy consumption that occurs on real-world trips that really matters to the driver and, to a larger extent, society. This study shows how digital maps and vehicle simulation tools can be used to estimate energy consumption on a real-world trip. The user (1) selects a trip in the mapping service ADAS-RP (Advanced Driver Assistance Systems Research Platform), (2) defines a vehicle model in the vehicle powertrain simulation tool Autonomie, and (3) runs and analyzes the simulation in that same tool. For each section of the trip, ADAS-RP provides various information that can include speed limits, historic data on traffic pattern speeds, the slopes of the routes, and the positions of stop signs and traffic lights. The first stage of processing this information is to schedule the stops and to create an intermediate speed target that takes those stops into account. The final driver demand spe...
Because of their high efficiency and low emissions, fuel-cell vehicles are undergoing extensive r... more Because of their high efficiency and low emissions, fuel-cell vehicles are undergoing extensive research and development. When considering the introduction of advanced vehicles, engineers must perform a well-to-wheel (WTW) evaluation to determine the potential impact of a technology on carbon dioxide and Greenhouse Gas (GHG) emissions and to establish a basis that can be used to compare other propulsion technology and fuel choices. Several modeling tools developed by Argonne National Laboratory (ANL) were used to evaluate the overall environmental and fuel-saving impacts associated with an advanced powertrain configuration. The Powertrain System Analysis Toolkit (PSAT) transient vehicle simulation software was used for pump-to-wheel (PTW) analysis, and GREET (Greenhouse gases, Regulated Emissions and Energy use in Transportation) was used for well-to-pump (WTP) analysis. This paper assesses the impact of FreedomCAR vehicle goals on a WTW energy basis. We will demonstrate that, on th...
In 2002, the U.S. Department of Energy (DOE) launched FreedomCAR, which is a partnership with aut... more In 2002, the U.S. Department of Energy (DOE) launched FreedomCAR, which is a partnership with automakers to advance high-technology research needed to produce practical, affordable advanced vehicles that have the potential to significantly improve fuel economy in the near-term. Advanced materials (including metals, polymers, composites, and intermetallic compounds) can play an important role in improving the efficiency of transportation vehicles. Weight reduction is one of the most practical ways of increasing vehicle fuel economy while reducing exhaust emissions. In this paper, we evaluate the impact of vehicle mass reduction for several vehicle platforms and advanced powertrain technologies, including Internal Combustion Engine (ICE) Hybrid Electric Vehicles (HEVs) and fuel cell HEVs, in comparison with conventional vehicles. We also explain the main factors influencing the fuel economy sensitivity.
The conclusions of this paper are: (1) component power requirements are fairly independent of All... more The conclusions of this paper are: (1) component power requirements are fairly independent of All Electric Range (AER); (2) battery energy is linear function of AER as a result of the Li-Ion battery high specific energy; and (3) battery pack voltage needs to be taken into consideration for high AER (above 40 mi). Higher capacities or battery packs in parallel might need to be used.
Argonne National Laboratory (ANL), working with the FreedomCAR Partnership, maintains the hybrid ... more Argonne National Laboratory (ANL), working with the FreedomCAR Partnership, maintains the hybrid vehicle simulation software, Powertrain System Analysis Toolkit (PSAT). The importance of component models and the complexity involved in setting up optimized control laws require validation of the models and control strategies. Using its Advanced Powertrain Research Facilities (APRF), ANL thoroughly tested the 2004 Toyota Prius to validate the PSAT drivetrain. In this paper, we will first describe the methodology used to quality check test data. Then, we will explain the validation process leading to the simulated vehicle control strategy tuning, which is based on the analysis of the differences between test and simulation. Finally, we will demonstrate the validation of PSAT Prius component models and control strategy, using APRF vehicle test data.
SAE Technical Paper Series, 2009
Model-based control system design improves quality, shortens development time, lowers engineering... more Model-based control system design improves quality, shortens development time, lowers engineering cost, and reduces rework. Evaluating a control system's performance, functionality, and robustness in a simulation environment avoids the time and expense of developing hardware and software for each design iteration. Simulating the performance of a design can be straightforward (though sometimes tedious, depending on the complexity of the system being developed) with mathematical models for the hardware components of the system (plant models) and control algorithms for embedded controllers. This paper describes a software tool and a methodology that not only allows a complete system simulation to be performed early in the design cycle, but also greatly facilitates the construction of the model by automatically connecting the components and subsystems that comprise it. A key element of this technique is the software-in-the-loop (SIL) capability, which permits compiled legacy source ...
SAE Technical Paper Series, 2001
SAE Technical Paper Series, 2008
Fuel cell vehicles are the subject of extensive research and development because of their potenti... more Fuel cell vehicles are the subject of extensive research and development because of their potential for high efficiency and low emissions. Because fuel cell vehicles remain expensive and the demand for hydrogen is therefore limited, very few fueling stations are being built. To try to accelerate the development of a hydrogen economy, some original equipment manufacturers (OEM) in the automotive industry have been working on a hydrogen-fueled internal combustion engine (ICE) as an intermediate step. Despite its lower cost, the hydrogen-fueled ICE offers, for a similar amount of onboard hydrogen, a lower driving range because of its lower efficiency. This paper compares the fuel economy potential of hydrogen-fueled vehicles to their conventional gasoline counterparts. To take uncertainties into account, the current and future status of both technologies were considered. Although complete data related to port fuel injection were provided from engine testing, the map for the direct-injection engine was developed from single-cylinder data. The fuel cell system data represent the status of the current technology and the goals of FreedomCAR. For both port-injected and direct-injected hydrogen engine technologies, power split and series Hybrid Electric Vehicle (HEV) configurations were considered. For the fuel cell system, only a series HEV configuration was simulated.
SAE Technical Paper Series, 2008
... Abstract. The US Department of Energy (DOE) has invested considerable research and developmen... more ... Abstract. The US Department of Energy (DOE) has invested considerable research and development (R&D) effort into Plug-in Hybrid Electric Vehicle (PHEV) technology because of the potential fuel displacement offered by the technology. ...
Because of their high efficiency and low emissions, fuel-cell vehicles are undergoing extensive r... more Because of their high efficiency and low emissions, fuel-cell vehicles are undergoing extensive research and development. When considering the introduction of advanced vehicles, engineers must perform a well-to-wheel (WTW) evaluation to determine the potential impact of a technology on carbon dioxide and Greenhouse Gas (GHG) emissions and to establish a basis that can be used to compare other propulsion technology and fuel choices. Several modeling tools developed by Argonne National Laboratory (ANL) were used to evaluate the overall environmental and fuel-saving impacts associated with an advanced powertrain configuration. The Powertrain System Analysis Toolkit (PSAT) transient vehicle simulation software was used for pump-to-wheel (PTW) analysis, and GREET (Greenhouse gases, Regulated Emissions and Energy use in Transportation) was used for well-to-pump (WTP) analysis. This paper assesses the impact of FreedomCAR vehicle goals on a WTW energy basis. We will demonstrate that, on th...
SAE Technical Paper Series, 2006
ABSTRACT In 2002, the U.S. Department of Energy (DOE) launched FreedomCAR, which is a partnership... more ABSTRACT In 2002, the U.S. Department of Energy (DOE) launched FreedomCAR, which is a partnership with automakers to advance high-technology research needed to produce practical, affordable advanced vehicles that have the potential to significantly improve fuel economy in the near-term. Advanced materials (including metals, polymers, composites, and intermetallic compounds) can play an important role in improving the efficiency of transportation vehicles. Weight reduction is one of the most practical ways of increasing vehicle fuel economy while reducing exhaust emissions. In this paper, we evaluate the impact of vehicle mass reduction for several vehicle platforms and advanced powertrain technologies, including Internal Combustion Engine (ICE) Hybrid Electric Vehicles (HEVs) and fuel cell HEVs, in comparison with conventional vehicles. We also explain the main factors influencing the fuel economy sensitivity.
SAE Technical Paper Series, 2007
SAE Technical Paper Series, 2006
Argonne National Laboratory (ANL), working with the FreedomCAR Partnership, maintains the hybrid ... more Argonne National Laboratory (ANL), working with the FreedomCAR Partnership, maintains the hybrid vehicle simulation software, Powertrain System Analysis Toolkit (PSAT). The importance of component models and the complexity involved in setting up optimized control laws require validation of the models and control strategies. Using its Advanced Powertrain Research Facilities (APRF), ANL thoroughly tested the 2004 Toyota Prius to validate the PSAT drivetrain. In this paper, we will first describe the methodology used to quality check test data. Then, we will explain the validation process leading to the simulated vehicle control strategy tuning, which is based on the analysis of the differences between test and simulation.
SAE Technical Paper Series, 2010
Model-based control system design improves quality, shortens development time, lowers engineering... more Model-based control system design improves quality, shortens development time, lowers engineering cost, and reduces rework. Evaluating a control system's performance, functionality, and robustness in a simulation environment avoids the time and expense of developing hardware and software for each design iteration. Simulating the performance of a design can be straightforward (though sometimes tedious, depending on the complexity of the system being developed) with mathematical models for the hardware components of the system (plant models) and control algorithms for embedded controllers. This paper describes a software tool and a methodology that not only allows a complete system simulation to be performed early in the design cycle, but also greatly facilitates the construction of the model by automatically connecting the components and subsystems that comprise it. A key element of this technique is the software-in-the-loop (SIL) capability, which permits compiled legacy source code to be incorporated into the simulation environment, thus allowing the inclusion of algorithm functionality for which no simulation models exist. With this approach, the control system can be developed early in the vehicle or powertrain design cycle, incorporating plant models, algorithm models, existing controller code, and architectural constructs that greatly expedite the creation of a system simulation that can be used for algorithm development, testing, and validation. An application of this methodology at General Motors Powertrain is described in detail.
SAE Technical Paper Series, 2008
... Abstract. The US Department of Energy (DOE) has invested considerable research and developmen... more ... Abstract. The US Department of Energy (DOE) has invested considerable research and development (R&D) effort into Plug-in Hybrid Electric Vehicle (PHEV) technology because of the potential fuel displacement offered by the technology. ...
Plug-in Hybrid Electric Vehicles (PHEVs) have the ability to drastically reduce petroleum use. Th... more Plug-in Hybrid Electric Vehicles (PHEVs) have the ability to drastically reduce petroleum use. The FreedomCAR Office of Vehicle Technology is developing a program to study the potential of the technology. The first step in the program is to define the ...
20th International Electric …, 2004
Internal combustion engine (ICE) hybrid electric vehicles (HEVs) have been recently introduced in... more Internal combustion engine (ICE) hybrid electric vehicles (HEVs) have been recently introduced in the market place, offering higher fuel economy than current conventional vehicles. Concurrently, because of their high efficiency and low emission ...
22nd Electric Vehicle …, 2006
Plug-in hybrid electric vehicles (PHEVs) have demonstrated the potential to significantly increas... more Plug-in hybrid electric vehicles (PHEVs) have demonstrated the potential to significantly increase fuel economy. However, the overall efficiency of the powertrain system of any Hybrid Electric Vehicle (HEV) depends on the vehicle-level control strategy. To ...
Standard cycles provide an easy way to evaluate the energy consumption of vehicles, but it is the... more Standard cycles provide an easy way to evaluate the energy consumption of vehicles, but it is the energy consumption that occurs on real-world trips that really matters to the driver and, to a larger extent, society. This study shows how digital maps and vehicle simulation tools can be used to estimate energy consumption on a real-world trip. The user (1) selects a trip in the mapping service ADAS-RP (Advanced Driver Assistance Systems Research Platform), (2) defines a vehicle model in the vehicle powertrain simulation tool Autonomie, and (3) runs and analyzes the simulation in that same tool. For each section of the trip, ADAS-RP provides various information that can include speed limits, historic data on traffic pattern speeds, the slopes of the routes, and the positions of stop signs and traffic lights. The first stage of processing this information is to schedule the stops and to create an intermediate speed target that takes those stops into account. The final driver demand spe...
Because of their high efficiency and low emissions, fuel-cell vehicles are undergoing extensive r... more Because of their high efficiency and low emissions, fuel-cell vehicles are undergoing extensive research and development. When considering the introduction of advanced vehicles, engineers must perform a well-to-wheel (WTW) evaluation to determine the potential impact of a technology on carbon dioxide and Greenhouse Gas (GHG) emissions and to establish a basis that can be used to compare other propulsion technology and fuel choices. Several modeling tools developed by Argonne National Laboratory (ANL) were used to evaluate the overall environmental and fuel-saving impacts associated with an advanced powertrain configuration. The Powertrain System Analysis Toolkit (PSAT) transient vehicle simulation software was used for pump-to-wheel (PTW) analysis, and GREET (Greenhouse gases, Regulated Emissions and Energy use in Transportation) was used for well-to-pump (WTP) analysis. This paper assesses the impact of FreedomCAR vehicle goals on a WTW energy basis. We will demonstrate that, on th...
In 2002, the U.S. Department of Energy (DOE) launched FreedomCAR, which is a partnership with aut... more In 2002, the U.S. Department of Energy (DOE) launched FreedomCAR, which is a partnership with automakers to advance high-technology research needed to produce practical, affordable advanced vehicles that have the potential to significantly improve fuel economy in the near-term. Advanced materials (including metals, polymers, composites, and intermetallic compounds) can play an important role in improving the efficiency of transportation vehicles. Weight reduction is one of the most practical ways of increasing vehicle fuel economy while reducing exhaust emissions. In this paper, we evaluate the impact of vehicle mass reduction for several vehicle platforms and advanced powertrain technologies, including Internal Combustion Engine (ICE) Hybrid Electric Vehicles (HEVs) and fuel cell HEVs, in comparison with conventional vehicles. We also explain the main factors influencing the fuel economy sensitivity.
The conclusions of this paper are: (1) component power requirements are fairly independent of All... more The conclusions of this paper are: (1) component power requirements are fairly independent of All Electric Range (AER); (2) battery energy is linear function of AER as a result of the Li-Ion battery high specific energy; and (3) battery pack voltage needs to be taken into consideration for high AER (above 40 mi). Higher capacities or battery packs in parallel might need to be used.
Argonne National Laboratory (ANL), working with the FreedomCAR Partnership, maintains the hybrid ... more Argonne National Laboratory (ANL), working with the FreedomCAR Partnership, maintains the hybrid vehicle simulation software, Powertrain System Analysis Toolkit (PSAT). The importance of component models and the complexity involved in setting up optimized control laws require validation of the models and control strategies. Using its Advanced Powertrain Research Facilities (APRF), ANL thoroughly tested the 2004 Toyota Prius to validate the PSAT drivetrain. In this paper, we will first describe the methodology used to quality check test data. Then, we will explain the validation process leading to the simulated vehicle control strategy tuning, which is based on the analysis of the differences between test and simulation. Finally, we will demonstrate the validation of PSAT Prius component models and control strategy, using APRF vehicle test data.
SAE Technical Paper Series, 2009
Model-based control system design improves quality, shortens development time, lowers engineering... more Model-based control system design improves quality, shortens development time, lowers engineering cost, and reduces rework. Evaluating a control system's performance, functionality, and robustness in a simulation environment avoids the time and expense of developing hardware and software for each design iteration. Simulating the performance of a design can be straightforward (though sometimes tedious, depending on the complexity of the system being developed) with mathematical models for the hardware components of the system (plant models) and control algorithms for embedded controllers. This paper describes a software tool and a methodology that not only allows a complete system simulation to be performed early in the design cycle, but also greatly facilitates the construction of the model by automatically connecting the components and subsystems that comprise it. A key element of this technique is the software-in-the-loop (SIL) capability, which permits compiled legacy source ...
SAE Technical Paper Series, 2001
SAE Technical Paper Series, 2008
Fuel cell vehicles are the subject of extensive research and development because of their potenti... more Fuel cell vehicles are the subject of extensive research and development because of their potential for high efficiency and low emissions. Because fuel cell vehicles remain expensive and the demand for hydrogen is therefore limited, very few fueling stations are being built. To try to accelerate the development of a hydrogen economy, some original equipment manufacturers (OEM) in the automotive industry have been working on a hydrogen-fueled internal combustion engine (ICE) as an intermediate step. Despite its lower cost, the hydrogen-fueled ICE offers, for a similar amount of onboard hydrogen, a lower driving range because of its lower efficiency. This paper compares the fuel economy potential of hydrogen-fueled vehicles to their conventional gasoline counterparts. To take uncertainties into account, the current and future status of both technologies were considered. Although complete data related to port fuel injection were provided from engine testing, the map for the direct-injection engine was developed from single-cylinder data. The fuel cell system data represent the status of the current technology and the goals of FreedomCAR. For both port-injected and direct-injected hydrogen engine technologies, power split and series Hybrid Electric Vehicle (HEV) configurations were considered. For the fuel cell system, only a series HEV configuration was simulated.
SAE Technical Paper Series, 2008
... Abstract. The US Department of Energy (DOE) has invested considerable research and developmen... more ... Abstract. The US Department of Energy (DOE) has invested considerable research and development (R&D) effort into Plug-in Hybrid Electric Vehicle (PHEV) technology because of the potential fuel displacement offered by the technology. ...