BMW katalog

THE BMW EFFICIENT LIGHTWEIGHT CONCEPT.

INGENIOUS DRIVING CHARACTER.

Use the right materials in the right places. Set them out according to

function and always to the highest level of efficiency. And, of course,

optimise the dynamics. This is the

BMW EfficientLightweight

vehicle

concept, a central part of the BMW EfficientDynamics strategy. For the

BMW i, though, BMW has gone a step further with the architecture and

choice of material.

Witness the LifeDrive architecture. This comprises two independent,

but perfectly complementary, units. The passenger cell, also described as

the Life module, is true to the

BMW EfficientLightweight

construction

principle in that it is made of carbon-fibre reinforced plastic – also called

CFRP or simply carbon. The use of this extremely lightweight and high-

strength material means that the vehicle weighs only ,kg, despite

the weight of the lithium-ion high-voltage battery.

The drive systems in the aluminium Drive module of the BMW i are

integrated above the front (electric motor) and rear axles (BMWTwinPower

Turbo petrol engine). The lithium-ion high-voltage battery is positioned in

what’s known as the energy tunnel sited between the two drive systems.

The front and rear systems, the passenger cell and the lithium-ion high-

voltage battery form a functional, cohesive unit. This is supported by

intelligent lightweight construction and innovative use of materials that

improve driving dynamics while also having a positive influence on range

and consumption.

Weight optimisation in the BMW i has been achieved with innovative

use of materials and outstanding solutions for mass reduction. There are

many examples, but here are just two. The structure of the scissor doors,

made with a CFRP inner structure and a thermoplastic outer skin, leads to

a weight saving of  per cent compared with a conventional construction.

The partitioning screen between the passenger and luggage compartment

is in a special hardened glass, which, along with optimum acoustic

properties, also offers a weight reduction of about  per cent compared

with conventional composite technology.

LOW CENTRE OF GRAVITY –

BALANCED AXLE-LOAD DISTRIBUTION.

THE LIFE DRIVE ARCHITECTURE OF THE BMW i IS AN INNOVATIVE,

BESPOKE CONCEPT FOR THE SPORTS CAR OF THE FUTURE.

Find out more about

LifeDrive in this short film.

BMW

EFFICIENT

DYNAMICS.

LESSEMISSIONS.MOREDRIVINGPLEASURE.

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