World premiere at the IAA.
The Mercedes-AMG
Project ONE will celebrate its world premiere at the International
Motor Show (IAA) in Frankfurt/Main: for the first time, the two-seater
supersports show car brings the very latest and efficient, fully-fledged
Formula 1 hybrid technology from the
race track to the road almost par for par to represent the highlight of
AMG’s 50th anniversary. This high-performance hybrid is said to produce
over 1,000 PS and reach top speeds beyond 350 km/h. The show car
combines outstanding race track performance and day-to-day suitable Formula 1 hybrid technology with exemplary efficiency. This is a world first.
One turbo engine and four electric motors.
The high-performance plug-in hybrid drive system of the Mercedes-AMG Project ONE comes directly from Formula 1, and was realised in close cooperation with the motorsport experts of Mercedes-AMG
High Performance Powertrains in Brixworth. It consists of a highly
integrated and intelligently networked unit comprising one hybrid,
turbocharged combustion engine with a total of four electric motors. One
has been integrated into the turbocharger, another has been installed
directly on the combustion engine with a link to the crankcase and the
two remaining motors drive the front wheels.
Mid-engine with up to 11,000 rpm.
The 1.6-litre V6 hybrid petrol engine with
direct injection and electrically assisted single turbocharging comes
directly from the Mercedes-AMG Petronas Formula 1
racing car. To achieve high engine speeds, the mechanical valve springs
have been replaced by pneumatic valve springs. The vehicle is
mid-engined (ahead of the rear axle) and it can easily reach speeds of
11,000 rpm, which is currently unique for a roadgoing vehicle. However,
for higher longevity and the use of commercially available Super Plus
petrol instead of racing fuel, it remains significantly below the F1
engine speed limit.
Driving Performance of the future.
Ever since the early days of motorsport, engineers have dreamed of bringing motor racing technology to the road. Mercedes-AMG
is now making this dream a reality at the very highest level.
“Motorsport is not an end in itself for us. Faced with intense
competition, we develop technologies from which our production vehicles
also subsequently benefit. We are drawing on our experiences and
successes from three constructors’ and drivers’ world championships to
bring Formula 1 technology to the road for the first time: in Mercedes-AMG Project ONE”, says Dr Dieter Zetsche, Chairman of the Board of Management of Daimler AG and Head of Mercedes-Benz Cars.
The concept car gives specific indications of
what to expect from the upcoming production model. “The hypercar is the
most ambitious project we have ever undertaken. It marks yet another
pinnacle of the successful, strategic development of Mercedes-AMG
towards a performance and sports car brand. Project ONE raises the bar
in terms of what is currently technologically feasible and thanks to its
combination of efficiency and performance it represents an absolute
benchmark. At the same time, Project ONE provides an outlook on how AMG
will define driving performance in the future”, Tobias Moers explains as
the Head of Management at Mercedes-AMG GmbH.
Rev wonders on the front axle.
The electric motors on the front axle are
also true rev wonders, with rotor revolutions up to 50,000 rpm – current
state of the art is a speed of 20,000 rpm. The very high-revving engine
is additionally boosted by a high-tech turbocharger. The exhaust gas
and compressor turbines are separated from one another and located at an
optimum position to the exhaust side and to the intake side of the V6
engine, and connected to one another by a shaft. This shaft features an
electric motor with approximately 90 kW which, depending on the
operating status, electrically drives the compressor turbine with up to
100,000 rpm – for instance when moving off or following load changes.
The Formula 1 designation for this unit is MGU-H (Motor Generator Unit Heat).
Responds faster than a naturally aspirated V8 engine.
The major advantage: the dreaded turbo lag –
the delayed response to accelerator pedal commands owing to the inertia
of the large charger – is completely eliminated. The response time is
greatly reduced, and is even shorter than that of a naturally aspirated
V8 engine. The electric turbocharger brings about another advantage: it
uses parts of the surplus energy from the exhaust system to generate
electricity, and either stores it in the high-voltage lithium-ion
battery as part of recuperation or provides additional drive power by
feeding it to an additional electric motor. This motor produces 120 kW,
has been installed directly on the engine and features a link to the
crankshaft via a spur gear (MGU-K = Motor Generator Unit Kinetic) –
another technology that ensures maximum efficiency and performance in Formula 1.
Fully electrically driven front axle.
The thermal efficiency of the combustion
engine with electric turbocharger (MGU-H) in conjunction with the
electric motor on the crankshaft (MGU-K) will be over 40 percent. This
is a previously unattained peak value for series production vehicles.
There will also be two further 120 kW electric motors at the front axle.
Each is connected to a front wheel via a
reduction gear. The fully electrically driven front axle allows
individual acceleration and braking of each front wheel, and therefore
selective torque distribution for particularly high levels of vehicle
dynamics.
Impressive acceleration figures.
The driver can move off purely electrically,
initially with just the electric motors on the front axle driving the
hypercar and the electric motor on the crankshaft supporting short-term
acceleration wishes. If the driver presses the accelerator more firmly
and demands more output, the V6 engine also switches on. The drive
system unfolds its full power as the engine speed increases. Impressive
acceleration figures are possible with the Race Start function:
acceleration from zero to 200 km/h takes under six seconds. If the
driver’s foot leaves the accelerator again to let the car coast, the
system switches to electric drive at the front axle – whilst braking
under normal driving conditions recuperates up to 80 percent of the
energy, which is fed into the battery.
Automated 8-speed manual transmission.
Power is transferred to the rear wheels by an 8-speed manual transmission that has been entirely developed from scratch for the Mercedes-AMG
Project ONE. It is activated hydraulically and can be operated in
automated mode or manually using the shift paddles. The car is equipped
with an advanced, weight-optimised ceramic high-performance compound
braking system. Its low weight reduces the unsprung masses, thus
improving driving dynamics and agility.
Innovative pushroad suspension.
Multi-link designs are used at the front and
rear. The adjustable coil-over suspension has several special features:
Both push-rod spring struts have been installed across the direction of
travel. The innovative arrangement of the spring/damper unit replaces
the function and application of conventional tubular cross members. The
overall setup of the springs and dampers is configured for perfectly
balanced, easily controlled and above all sporty handling
characteristics. These are also assisted by all-wheel drive and torque
vectoring.
Not only a street-legal racing machine.
The Mercedes-AMG Project ONE will not only be a street-legal racing machine that directly brings current Formula 1
hybrid technology onto the road and combines top-class race track
performance with full day-to-day suitability. Its purpose is also to
obtain extensive findings about performance-oriented plug-in hybrid
drive technology, further developments of suspension layouts and
extended onboard electronics that will later benefit series production
AMG cars.
Source: https://www.mercedes-benz.com/en/mercedes-benz/vehicles/mercedes-amg-project-one-formula-1-technology-for-the-road/
Source: https://www.mercedes-benz.com/en/mercedes-benz/vehicles/mercedes-amg-project-one-formula-1-technology-for-the-road/
