Volkswagen XL1 User Manual
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 – 11
Dr. Volker Kaese, Project Management Volkswagen XL1
th
September2014
The history of the 1 litre car
1-litre car
0.99L/100km – 26g/km CO
Research vehicle
Hamburg
Mild hybrid
XL1
L1
1.38L/100km – 36g/km CO
2
Full hybrid
Study
2
0.9L/100km – 24g/km CO
Plug-in hybrid
Frankfurt
Concept car
Qatar
2
0.9L/100km – 21g/km CO
XL1
Plug-in hybrid
Experience fleet
Geneva
2
2011
2013
Date: 10 September 2014
Drafted by: PL VW019
Ways of improving efficiency
Reducing resistance
Optimising energy efficiency
Lightweight
construction
Aerodynamics
Highly efficient TDI engine
Reversing
the weight spiral
Downsizing
Plug-in hybrid: electrification of the drive
• Purely electric engine
• Brake energy recuperation
• Highly effective hybrid strategy
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
Drafted by: PL VW019
• 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
The XL1’s CRFP monocoque
Date: 10 September 2014
Drafted by: PL VW019
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