XL1: The 1-litre car
The 313 mpg car - The technical solution for daily superefficient driving
Low Carbon Vehicle Event LCV 2014,
CENEX, Millbrook Proving Ground, Bedford, UK 10th – 11th September2014
Dr. Volker Kaese, Project Management Volkswagen XL1
The history of the 1 litre carXL1
XL1
L1
1-litre car
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0.9L/100km – 24g/km CO2 |
0.9L/100km – 21g/km CO2 |
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1.38L/100km – 36g/km CO2 |
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Plug-in hybrid |
Plug-in hybrid |
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0.99L/100km – 26g/km CO2 |
Full hybrid |
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Experience fleet |
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Concept car |
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Mild hybrid |
Study |
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Research vehicle |
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Qatar |
Geneva |
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Frankfurt |
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Hamburg |
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2011 |
2013 |
Date: 10 September 2014
Drafted by: PL VW019
Ways of improving efficiency |
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Reducing resistance |
Optimising energy efficiency |
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Lightweight |
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Highly efficient TDI engine |
construction |
Reversing |
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the weight spiral
Downsizing
Aerodynamics |
Plug-in hybrid: electrification of the drive |
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Purely electric engine |
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Brake energy recuperation |
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• Highly effective hybrid strategy |
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Reducing consumption
Date: 10 September 2014
Drafted by: PL VW019
Reversing the weight spiral
Requirements relating to comfort, safety, quality, legislation, interior
Starting point: lightweight body construction
Secondary effects on other areas
e.g. smaller fuel tank, discontinuation of power steering
Downsizing of TDI engine, electric motor and HV battery
Secondary effects on other areas, e.g. lightweight running gear narrow tyres
The result: weight reduction throughout the vehicle
Date: 10 September 2014
Drafted by: PL VW019
Contribution to vehicle weight by
Total weight of a typical compact passenger car:group
Electrics 4%
Equipment 14%
Engine 15%
Running gear 24%
Body 43%
Conclusion:
the body needs to be optimised!
Date: 10 September 2014
Drafted by: PL VW019
Options for reducing body weight
30%
20%
Steel |
Aluminium |
CRFP |
The benefits of CRFP – significant weight reduction
through:
•Highly specific elasticity module
•Directional stability properties that are also amenable to power flow
•Functional and construction integration in the
vehicle |
Date: 10 September 2014 |
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Drafted by: PL VW019 |
The XL1’s CRFP monocoque
• Safety cell and load-bearing vehicle structure
• Monocoque interior forms part of the vehicle interior
• Total weight of the monocoque ca. 89.5 kg
• Direct connection to running gear
Date: 10 September 2014
Drafted by: PL VW019
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