xcel
09-12-2009, 04:56 PM
http://www.cleanmpg.com/photos/data/2/European_Union_Flag.jpg MB taking Honda’s_IMA to where it should be today. (cleanmpg.com/forums/showthread.php?p=232419)
http://www.cleanmpg.com/photos/data/501/2011_MB_Vision_S500_PHEV-18.jpgWayne Gerdes - CleanMPG (cleanmpg.com) - Sept. 12, 2009
2011 MB Vision PHEV-18 concept including a workable clutched MGSet. Garish decals and all ;)
Shortly after the market launch of the S400 HEV, Mercedes-Benz will be presenting the first “three-liter car” in the premium segment -- the Vision S500 PHEV -- at the 63rd IAA International Automobile Autoshow in Frankfurt.
The vehicle will display the future of Mercedes-Benz’ modular set of hybrid sub-systems. The Vision S500 PHEV can drive for up to 18 miles solely as a BEV without producing any local emissions. The efficient gasoline engine combined with the battery-electric driving mode enables the vehicle to achieve a certified consumption of only 73.5 mpgUS combined on the NEDC. The experimental PHEV developed in Sindelfingen demonstrates the long-term viability of future S Class generations. The excellent fuel efficiency figures are made possible by the combination of a plug-in with the efficiency-boosting BlueEFFICIENCY measures. At the same time, the Vision S500 PHEV has all of the strengths that are typical of the S Class: comfort, outstanding safety and superior performance. The drive system in the concept consists of three main components: a powerful V6 gasoline engine with a next-generation direct injection system, a 60 HP hybrid module and a Li-Ion battery with more than 10 kWh of storage capacity that can be recharged at currently deployed charging stations or at home. The Vision S500 PHEV can accelerate from 0 to 60 mph in 5.4 seconds.
“The Vision S500 PHEV is a new milestone on our path toward zero-emission mobility,” says Dr. Dieter Zetsche, Chairman of Daimler AG and Head of Mercedes-Benz Cars. “It is a luxurious and safe S Class that offers superior driving performance while at the same time consuming less fuel than current compacts. All of this shows that our top models will also be able to combine automotive fascination with responsibility for the environment.”
“Although it will take some time before this model can go into series production, our engineers will be working full steam to carry out the necessary integration measures and ensure that all components can meet the tough everyday demands required of a luxury long-distance sedan,” says Dr. Thomas Weber, member of the Board of Management of Daimler AG with responsibility for Group Research and Mercedes-Benz Cars Development. “We’ve already got all the key technology we need for such a dream car, which is why I see it being included in the next generation of the S Class. The important thing now is that our development work be accompanied by the establishment of a full-coverage infrastructure that will allow the potential of this innovative drive system to be fully exploited.”
The compact Li-Ion battery in the S400 HEV (0.9 kWh) is housed in the vehicle’s engine compartment, the significantly higher-performing lithium-ion unit in the Vision S500 PHEV requires more space. The battery is located behind the rear seats in the trunk. The lithium-ion battery’s location above the rear axle provides crucial benefits including a balanced weight distribution and that the gasoline tank remains adequate for long-distance cruising. In addition, the protected position of the tank ensures it is as safe during an unfortunate accident.
S500 PHEV similar to the S400 HEV
One system-specific attribute is the presence of an additional clutch integrated between the combustion engine and the electric motor. This device decouples the two components in the pure electric drive mode, thereby ensuring the highest level of efficiency in the latter. Moreover, because it is fully integrated into the vehicle’s converter housing, the clutch does not take up any additional space.
Electrical outlet as a filling station
Another key difference between the S500 PHEV and conventional HEV involves the plug-in battery enabling the S500 PHEV to be charges in less than 60 minutes with a charging capacity of 20 kW. A standard charge cycle at a conventional household socket with 3.3 kW takes about four-and-a-half hours to do the same.
The model is also equipped with a compact onboard charger: Housed behind the side trunk wall, this unit controls the recharging process and is protected against short circuits, voltage reversal, and voltage surges. The charging system also protects the battery by monitoring voltage, the charging level and charging time. The total weight of the electrical components in the current experimental vehicle is 474 pounds, whereby the Li-Ion battery weighs approximately 286 pounds.
The vehicle’s hybrid module also provides regenerative braking. The clutch enhances regenerative braking efficiency as it enables complete energy regeneration without engine drag losses.
18 miles AER
The 10 kWh Li-Ion battery and the 59 HP Hybrid module enables the vehicle to drive up to 18 miles on electricity alone. That is completely sufficient for many trips within cities. The gasoline engine will automatically provide additional power to that of the electric motor when travelling at higher speeds or when more power is demanded. Before closing the clutch, the vehicle electronics synchronizes the engine speed with the hybrid module’s rotational speed so that the engine is brought online without the driver noticing.
What’s more, the hybrid module’s interaction with the combustion engine enables numerous additional functions that impact fuel consumption, emissions and vehicle agility in a positive manner. Similar to the system employed in the S400 HEV, the hybrid module in the Vision S500 PHEV also comes with the ECO start/stop function. This feature allows the electric motor to provide a powerful addition to the engine during heavy accelerations.
Extensive electronic safety and control
The Li-Ion battery not only serves as an energy storage device for the electric motor but is also linked via a DC-DC converter to the 12-volt on-board network providing power to standard 12V accessories including the headlamps. To ensure a consistently high level of electrical efficiency, the voltage transformers are water-cooled via an additional low-temperature circuit.
Special power electronics are required for operating the three-phase AC electric motor in the high-voltage direct current grid, and the inverter for this task is housed within the engine compartment. The power electronics system is also integrated into the low-temperature cooling circuit.
The future – Diesel powered HEV/PHEVs
An important milestone on the road to PHEVs was recently unveiled Vision E300 BlueTEC diesel HEV. Like the S400 HEV and the Vision S500 PHEV, the Vision E300 is based on the Mercedes-Benz modular hybrid concept. This near-series vehicle study combines a new 2.2L four-cylinder diesel engine with a 20 HP hybrid module that is also used in the S400 HEV. This drive system will enable the Vision E300 BlueTEC HEV to travel over 60 miles on only 1 gallon of fuel (preliminary value). With an output of 224 hp and torque of 440 Lb-Ft. combined, the smaller I4 turbo-diesel will have the same performance as today’s best six-cylinder diesel engines. Exhaust gas treatment is handled by the combination of an DOC (diesel oxidizing catalytic converter), a DPF (diesel particulate filter) and BlueTEC SCR (Selective Catalytic Reduction Catalytic converter) with AdBlueŽ injection. The Vision E300 BlueTEC HEV thus also has the potential to meet the world’s most stringent emission standards.
Vision S500 PHEV Specifications
Combustion engine: Gasoline
No. of cylinders/arrangement: V-6, 4 valves per cylinder
Displacement: 3.5L
Hybrid module
Type: Permanently excited synchronous machine
Rated output: 59 HP
Rated torque: 184 lb-ft.
Performance and fuel economy
Acceleration (0 – 60 mph): 5.4 sec.
Top speed: 155 mph
Fuel Economy: 73.5 mpgUS combined on the NEDC
http://www.cleanmpg.com/photos/data/501/2011_MB_Vision_S500_PHEV-18.jpgWayne Gerdes - CleanMPG (cleanmpg.com) - Sept. 12, 2009
2011 MB Vision PHEV-18 concept including a workable clutched MGSet. Garish decals and all ;)
Shortly after the market launch of the S400 HEV, Mercedes-Benz will be presenting the first “three-liter car” in the premium segment -- the Vision S500 PHEV -- at the 63rd IAA International Automobile Autoshow in Frankfurt.
The vehicle will display the future of Mercedes-Benz’ modular set of hybrid sub-systems. The Vision S500 PHEV can drive for up to 18 miles solely as a BEV without producing any local emissions. The efficient gasoline engine combined with the battery-electric driving mode enables the vehicle to achieve a certified consumption of only 73.5 mpgUS combined on the NEDC. The experimental PHEV developed in Sindelfingen demonstrates the long-term viability of future S Class generations. The excellent fuel efficiency figures are made possible by the combination of a plug-in with the efficiency-boosting BlueEFFICIENCY measures. At the same time, the Vision S500 PHEV has all of the strengths that are typical of the S Class: comfort, outstanding safety and superior performance. The drive system in the concept consists of three main components: a powerful V6 gasoline engine with a next-generation direct injection system, a 60 HP hybrid module and a Li-Ion battery with more than 10 kWh of storage capacity that can be recharged at currently deployed charging stations or at home. The Vision S500 PHEV can accelerate from 0 to 60 mph in 5.4 seconds.
“The Vision S500 PHEV is a new milestone on our path toward zero-emission mobility,” says Dr. Dieter Zetsche, Chairman of Daimler AG and Head of Mercedes-Benz Cars. “It is a luxurious and safe S Class that offers superior driving performance while at the same time consuming less fuel than current compacts. All of this shows that our top models will also be able to combine automotive fascination with responsibility for the environment.”
“Although it will take some time before this model can go into series production, our engineers will be working full steam to carry out the necessary integration measures and ensure that all components can meet the tough everyday demands required of a luxury long-distance sedan,” says Dr. Thomas Weber, member of the Board of Management of Daimler AG with responsibility for Group Research and Mercedes-Benz Cars Development. “We’ve already got all the key technology we need for such a dream car, which is why I see it being included in the next generation of the S Class. The important thing now is that our development work be accompanied by the establishment of a full-coverage infrastructure that will allow the potential of this innovative drive system to be fully exploited.”
The compact Li-Ion battery in the S400 HEV (0.9 kWh) is housed in the vehicle’s engine compartment, the significantly higher-performing lithium-ion unit in the Vision S500 PHEV requires more space. The battery is located behind the rear seats in the trunk. The lithium-ion battery’s location above the rear axle provides crucial benefits including a balanced weight distribution and that the gasoline tank remains adequate for long-distance cruising. In addition, the protected position of the tank ensures it is as safe during an unfortunate accident.
S500 PHEV similar to the S400 HEV
One system-specific attribute is the presence of an additional clutch integrated between the combustion engine and the electric motor. This device decouples the two components in the pure electric drive mode, thereby ensuring the highest level of efficiency in the latter. Moreover, because it is fully integrated into the vehicle’s converter housing, the clutch does not take up any additional space.
Electrical outlet as a filling station
Another key difference between the S500 PHEV and conventional HEV involves the plug-in battery enabling the S500 PHEV to be charges in less than 60 minutes with a charging capacity of 20 kW. A standard charge cycle at a conventional household socket with 3.3 kW takes about four-and-a-half hours to do the same.
The model is also equipped with a compact onboard charger: Housed behind the side trunk wall, this unit controls the recharging process and is protected against short circuits, voltage reversal, and voltage surges. The charging system also protects the battery by monitoring voltage, the charging level and charging time. The total weight of the electrical components in the current experimental vehicle is 474 pounds, whereby the Li-Ion battery weighs approximately 286 pounds.
The vehicle’s hybrid module also provides regenerative braking. The clutch enhances regenerative braking efficiency as it enables complete energy regeneration without engine drag losses.
18 miles AER
The 10 kWh Li-Ion battery and the 59 HP Hybrid module enables the vehicle to drive up to 18 miles on electricity alone. That is completely sufficient for many trips within cities. The gasoline engine will automatically provide additional power to that of the electric motor when travelling at higher speeds or when more power is demanded. Before closing the clutch, the vehicle electronics synchronizes the engine speed with the hybrid module’s rotational speed so that the engine is brought online without the driver noticing.
What’s more, the hybrid module’s interaction with the combustion engine enables numerous additional functions that impact fuel consumption, emissions and vehicle agility in a positive manner. Similar to the system employed in the S400 HEV, the hybrid module in the Vision S500 PHEV also comes with the ECO start/stop function. This feature allows the electric motor to provide a powerful addition to the engine during heavy accelerations.
Extensive electronic safety and control
The Li-Ion battery not only serves as an energy storage device for the electric motor but is also linked via a DC-DC converter to the 12-volt on-board network providing power to standard 12V accessories including the headlamps. To ensure a consistently high level of electrical efficiency, the voltage transformers are water-cooled via an additional low-temperature circuit.
Special power electronics are required for operating the three-phase AC electric motor in the high-voltage direct current grid, and the inverter for this task is housed within the engine compartment. The power electronics system is also integrated into the low-temperature cooling circuit.
The future – Diesel powered HEV/PHEVs
An important milestone on the road to PHEVs was recently unveiled Vision E300 BlueTEC diesel HEV. Like the S400 HEV and the Vision S500 PHEV, the Vision E300 is based on the Mercedes-Benz modular hybrid concept. This near-series vehicle study combines a new 2.2L four-cylinder diesel engine with a 20 HP hybrid module that is also used in the S400 HEV. This drive system will enable the Vision E300 BlueTEC HEV to travel over 60 miles on only 1 gallon of fuel (preliminary value). With an output of 224 hp and torque of 440 Lb-Ft. combined, the smaller I4 turbo-diesel will have the same performance as today’s best six-cylinder diesel engines. Exhaust gas treatment is handled by the combination of an DOC (diesel oxidizing catalytic converter), a DPF (diesel particulate filter) and BlueTEC SCR (Selective Catalytic Reduction Catalytic converter) with AdBlueŽ injection. The Vision E300 BlueTEC HEV thus also has the potential to meet the world’s most stringent emission standards.
Vision S500 PHEV Specifications
Combustion engine: Gasoline
No. of cylinders/arrangement: V-6, 4 valves per cylinder
Displacement: 3.5L
Hybrid module
Type: Permanently excited synchronous machine
Rated output: 59 HP
Rated torque: 184 lb-ft.
Performance and fuel economy
Acceleration (0 – 60 mph): 5.4 sec.
Top speed: 155 mph
Fuel Economy: 73.5 mpgUS combined on the NEDC