Momentum - November 2019 - 17

TODAY'S
ENGINEERING

MERCEDES-BENZ EQS CONCEPT:
THE S-CLASS OF ELECTRIC VEHICLES?
THE MERCEDES-BENZ S-CLASS for
decades helped form the automotive
definition for "flagship." With electric
propulsion seemingly set to revolutionize
the industry, the company could be
ready to reframe the flagship definition,
unveiling at the 2019 Frankfurt auto show
the Vision EQS concept car, a vehicle
that could signal the next direction for
Mercedes' range-topping passenger car.
Mercedes already has discussed its
intention to launch a full "EQ" lineup
of electric vehicle (EV) models, but the
Vision EQS concept could be particularly
significant if the company intends for the
longstanding S-Class to fully cast off its
internal-combustion heritage. Another
possibility is for a fully electric model
to represent the pinnacle of an S-Class
lineup that also could encompass internalcombustion variants. Or, the EQS could
simply become sedan flagship of the EQ
lineup that also will feature several utilityvehicle body styles.
At the Vision EQS' unveiling at the
Frankfurt show, Mercedes did not give
direct insight into how a potential
production version of the concept car
would fit into the company's long-range
strategy, but in a release did call the car
"a milestone on the way to the future
of Mercedes-Benz," adding that it is "a
new outlook for future large, electric
luxury sedans."
The Vision EQS is fitted with a battery
pack of "approximately" 100 kW-h
capacity, Mercedes said. The lithium-ion
battery pack is made by Accumotive, a
subsidiary of Mercedes owner Daimler AG.
The company took pains to add, "for the
next vehicle generation of the product and
technology brand EQ, some of the battery
cells are ready to be wholly produced
using power from renewable sources. In
purchasing battery cells from CO2-neutral
production, Mercedes-Benz Cars is making
a major contribution on the way to a CO2neutral new car fleet in twenty years."
The company added: "As a first
result of the sustainability partnership
[with a major battery-cell supplier],
MOMENTUM

Image credit: Mercedes-Benz

The Vision EQS concept car presages a full-size sedan that will be part of Mercedes-Benz's range of
all-electric EQ models.

Image credit: Mercedes-Benz

Mercedes says the Vision EQS cabin is inspired by luxury yachts.
by purchasing CO2-neutrally produced
battery cells, Mercedes-Benz Cars will
reduce the overall CO2 footprint of all
the batteries in future vehicle models by
considerably more than 30%."
For the Vision EQS, this sizeable battery
pack yields a "comfortable" driving
range of up to 400 miles (700 km). With
capability for recharging at up to 350 kW
- such systems already in place for public
use - the battery could be recharged to
80% capacity in less than 20 minutes, the
company claimed.
An electric motor at each axle imparts
all-wheel-drive capability with "fully

variable" torque distribution. Total output
is 469 hp and peak 560 lb-ft (759 N-m).
The 0-to-60 mph (97 km/h) run takes
less than 4.5 s. A release mentions
transmission "ratios," suggesting
the transmission integrated with the
traction motor and power electronics
could be more than a single-speed
unit; a handful of automakers and Tier 1
suppliers recently have shown 2-speed
transmissions in conjunction with EV
drive motors.

By Bill Visnic, Editorial Director,
Mobility Media, Tech Briefs/SAE International

November 2019 17



Momentum - November 2019

Table of Contents for the Digital Edition of Momentum - November 2019

Momentum - November 2019
Contents
EDITORIAL
BRIEFS
STUDENT GENERATION
One-on-One – Matt Heywood
Experience and innovation walk hand in hand
Baja SAE 2019: a tale of wind, rain (sleet/ mud), and sunshine
‘Complete, finish, win’
Low-speed controlled flight top of mind for Cal State Northridge team
Big data, big benefits for big machines
Mercedes-Benz EQS concept: the S-Class of electric vehicles?
SAE 101: EDGE Research Reports
New SAE student challenge centers on connected aircraft
Miscellaneous news for SAE Student Members!
Dossier: Steve Rehak of Detroit Flex Defense
What’s next?
Momentum - November 2019 - Momentum - November 2019
Momentum - November 2019 - Cover2
Momentum - November 2019 - Contents
Momentum - November 2019 - EDITORIAL
Momentum - November 2019 - BRIEFS
Momentum - November 2019 - STUDENT GENERATION
Momentum - November 2019 - 5
Momentum - November 2019 - 6
Momentum - November 2019 - One-on-One – Matt Heywood
Momentum - November 2019 - Experience and innovation walk hand in hand
Momentum - November 2019 - 9
Momentum - November 2019 - 10
Momentum - November 2019 - Baja SAE 2019: a tale of wind, rain (sleet/ mud), and sunshine
Momentum - November 2019 - ‘Complete, finish, win’
Momentum - November 2019 - 13
Momentum - November 2019 - 14
Momentum - November 2019 - Low-speed controlled flight top of mind for Cal State Northridge team
Momentum - November 2019 - Big data, big benefits for big machines
Momentum - November 2019 - Mercedes-Benz EQS concept: the S-Class of electric vehicles?
Momentum - November 2019 - SAE 101: EDGE Research Reports
Momentum - November 2019 - New SAE student challenge centers on connected aircraft
Momentum - November 2019 - Miscellaneous news for SAE Student Members!
Momentum - November 2019 - 21
Momentum - November 2019 - Dossier: Steve Rehak of Detroit Flex Defense
Momentum - November 2019 - 23
Momentum - November 2019 - What’s next?
Momentum - November 2019 - Cover3
Momentum - November 2019 - Cover4
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