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PICS - Audi is bringing 20 ALL ELECTRIC models to the market over the next five years



 
 
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Old March 31st 20, 06:52 PM posted to alt.autos.audi
MummyChunk
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Default PICS - Audi is bringing 20 ALL ELECTRIC models to the market over the next five years

Some exciting news from Audi about their plan to bring a whopping 20
new all electric models to showrooms near you within the next 5 years.


The death of the combustion engine is at hand

From Audi
*****
Globally, by 2025, Audi is aiming to have 30 electrified models on
sale, with 20 of those vehicles fully electric. It is an ambitious
plan showing the brand's global commitment for a more electrified and
sustainable future.

Already in the U.S., Audi has introduced five production modelsthe
Audi Q5 TFSI e, A7 TFSI e and A8 TFSI e plug-in hybrid electric
vehicles (PHEV) as well as the e-tron all-electric SUV and upcoming
e-tron Sportback. Next, we'll introduce the Audi Q4 e-tron SUV and
e-tron GT performance sedan, which have already been shown as concept
vehicles.

Audis upcoming all-electric vehicles will be built on four distinct
platforms that balance performance, efficiency, practicality and the
engineering and craftsmanship synonymous with the Audi brand. Here are
details of the four architectures that will underpin cars and SUVs in
a multitude of sizes to bring Audis electrified plans to reality.

The first Audi quattro model of the 1980s was simply named quattro for
its innovative all-wheel-drive technology. Much the same, the e-tron
name foreshadows a range of electric vehicle (EV) drivetrain
technology for the Audi brand. The Audi e-tron SUV is the first
all-electric SUV, having gone on sale in the U.S. starting in May
2019. It combines electric mobility with Audi quality: A sophisticated
drive and recuperation system, all-wheel drive and maximum comfort. It
is an Audi, through and through, in quality, performance and
execution.

Manufactured in a certified CO2-neutral plant in Brussels, Belgium,
whose 398,264 sq ft rooftop solar array is large enough to produce
approximately 3,000 MWh annuallyor enough to charge approximately
30,000 e-tron SUVsthe e-tron is based on a heavily modified version of
the modular longitudinal platform (MLB evo) that underpins an array of
Audi vehicles. With a wheelbase that stretches 115.3 inches, the
e-tron is between the Audi Q5 and Audi Q7 SUVs in terms of size, or
about the same size as an Audi Q8. The high-voltage battery stores up
to 95 kWh of energy and can recover up to 30% of energy used to drive
the vehicle during regenerative braking applications. In most
applications, the e-tron uses brake-energy regeneration relying on its
hydraulic brake booster. A brake pedal simulator makes the switch from
regen to hydraulic braking nearly unnoticeable.

The e-tron houses two asynchronous electric motors (ASM) that produce
up to 402 horsepower in boost mode. A more powerful, three-motor
variant with fully independent rear torque vectoring is also under
development.

Using an Audi-designed power electronics module, the e-tron is able to
read sensor data 10,000 times per second and output current values for
the electric motors to help with traction in various conditions. With
its rear-biased quattro all-wheel-drive system, if the e-tron senses a
loss of traction, it is able to redistribute torque to wheels with
traction in just 30 milliseconds.

The Audi e-tron can charge using both alternating (Level 1 and 2) and
direct (Level 3) current and can achieve approximately 80% charge in
30 minutes at a 150 kW high-speed public charger. Later in 2020, the
e-tron will be joined by the e-tron Sportback, a new variant with a
coupe-like profile.

J1: The performance electric platform

Shown as a concept vehicle thus far, the Audi e-tron GT performance
sedan shows how sports cars will evolve in the electric era. For the
e-tron GT, Audi is sharing synergies with the Porsche brand, which
developed the J1 architecture.

The Audi e-tron GT concept car is equipped with two permanently
excited synchronous motors (PSM) that produce a combined 582
horsepower and 612 lb-ft of torque. A PSM has a rotor with permanent
magnets in it and a natural internal magnetic field. In a PSM, the
rotor moves in coordination with the magnetic field of the stator (the
stationary part of the motor in which the rotor rotates), which is why
it is known as a permanently excited synchronous motor. By comparison,
an asynchronous motors rotor rotates slower than a synchronous speed.

While specifications for the e-tron GT are subject to change, the
e-tron GT concept is

The electrical system in the e-tron GT concept car runs at 800 volts,
whereas most modern EVs currently operate at a capacity of 400 volts
or less. Volts are a measurement of pressure in an electric circuit,
and the J1 platform can accept this level of force thanks to its
energy management and cooling systems. Because of this, the e-tron GT
is able to charge the battery to 80% in about 20 minutes at a Level 3
DC fast charger with a maximum output of 350 kW.

In the e-tron GT, the battery is located in the underbody, between the
axles and is designed with recesses in the rear footwell, ensuring
comfort for front- and rear-seat passengers. The body and roof of the
e-tron GT are made of carbon fiber-reinforced polymer (CFRP), and the
car uses the same multi-material construction philosophy as other Audi
vehicles like the A8.

In combination with the low center of gravity, the e-tron GT has
quattro all-wheel drive, with an electric motor at the front and rear
axles, offering ideal traction for a sports car. The drive management
distributes the torque of the electric motors between the axles as
needed and also regulates the wheels separately.

The layout allows for numerous suspension and performance features,
for example all-wheel steering or a sport differential, providing
excellent traction and vehicle dynamics. Electric motors with
different outputs can be used in production versions.

MEB: Small Audi platform, large aspirations

A good way to think about Audis use of the modular electric toolkit
(MEB) architecture is to think of the current internal-combustion
vehicles in the Audi lineup.

Small, gas-powered Audi vehicles like the A3 and Q3 serve as entry
points into the Audi brand and share components with one another on a
platform called MQB. Larger Audi vehicles from the A4 up to the A8 and
SUVs use shared componentry on the MLB platform. This helps engineers
develop shared parts across many vehicles that are philosophically
similar. Thats what the MEB platform will be to Audi for small and
medium electric vehicles, with the PPE platform focused toward medium
and large EVs.

With the MEB platform, Audi will draw from the strength of the
Volkswagen Group to offer customers affordable yet technically
sophisticated electric models with unmistakable Audi DNA. The MEB
platform will be used for vehicles like the Q4 e-tron. Designed
exclusively for EVs, MEB will provide customers all the advantages
that compact electric motors and lithium-ion batteries in different
sizes and capacities offer. The battery systems, electric motors and
axle designs form a technology toolkit. In contrast to the current
models with combustion engines, the front section is considerably
shorterthe front axle and firewall move forward, making the wheelbase
and usable interior space considerably larger.

The Q4 e-tron is expected to be the first Audi model based on the MEB
platform, with exterior dimensions comparable to those of the Q3 but
with the interior dimensions of a significantly larger vehicle. The
architecture also offers new design opportunities and offers different
performance levels and powertrain configurations.

PPE: Medium and large premium vehicles

Finally, what the MLB platform is to vehicles like the Audi A4 through
A8 and Q5 through Q8, the Premium Platform Electric (PPE) architecture
is to Audis electric portfolio.

PPE has been designed and developed in cooperation with Porsche from
the start with the project team sharing space in Ingolstadt. PPE is
characterized by a high-tech and highly scalable architecture that
allows for both low- and high-floor, from the medium-size class and
upSUVs, Sportbacks, Avants and crossovers. The portfolio and
flexibility will allow Audi to develop and sell one of the best
combinations of electric, plug-in and internal combustion vehicles in
the global markets.

The technology offered in PPE is similar to that of MEB and with a
number of powertrain and battery options that will be available.
Standard packaging will allow for one electric motor in the rear; the
higher-range models will be equipped with a second electric motor at
the front axle (PSM or ASM) that can activate quattro all-wheel drive
automatically when needed.

Like in the Audi e-tron GT concept, the electrical architecture is 800
volts; in combination with high-efficiency thermal management, it
enables an ultra-high-speed charging capacity of 350 kW. The
dimensions and overhangs of the low-floor Audi models on the PPE
platform will be slightly shorter than those of the current combustion
engine models on the MLB platform but will offer greater interior
dimensions. Torque vectoring, air suspension and all-wheel steering
will all be available.

The Audi brand has dedicated approximately 12 billion global
investment through 2024 to help ensure development of a number of EVs,
in an effort to meet demand as infrastructure around the world rapidly
develops. Globally, Audi anticipates it will reach production of
approximately 800,000 electrified vehicles per year by 2025.

As the Volkswagen Group has committed to the goals of the Paris
Climate Agreement and plans to be a CO2-neutral automaker globally by
2050, Audi and the entire Group are putting a full focus into
electrification and more sustainable transportation. The above
platforms can help ensure the Group does all it can to reach its
ambitious goals.

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