Mercedes-Benz S500 Intelligent
Drive Review
«The best or
nothing»
How
do you call it when you are driving a car which you are not actually driving?
This was the key dilemma we had when we were first driven / drove around
Silicon Valley in the Mercedes-Benz S500 Intelligent Drive Concept. Essentially
this is an autonomous version of the Mercedes-Benz S500 limousine that hit
the showrooms last year.
It
is our second autonomous driving experience in a few weeks time, following the
race track experience we had in the Audi RS7 Piloted Driving Concept. Where
Audi showed us what it is like to lap a race track at incredible speed without
a driver, Mercedes-Benz takes us onto the busy streets of the Bay Area in
California.
Since
September 2014 the government in California granted permission to various tech
firms and car manufacturers to conduct autonomous vehicle tests on the streets.
The State of California has a leadership role in developing new legislation for
autonomous cars and provides the ideal test bed for new autonomous cars. In
comparison to European countries it also offers some interesting challenges for
autonomous vehicles, like the allowed right turn at a red traffic light and
four-way stop intersections.
The
Mercedes-Benz S500 Intelligent Drive Concept is a regular Mercedes-Benz S-Class
with additional radars and cameras mounted to the front- and back. Additional
computing power with a sophisticated map of the area provide the rest necessary
to do a few mile lap around the Mercedes-Benz Research & Development Center
in Sunnyvale. The system works in a similar fashion as an adaptive cruise
control system already widely available on the market does. At the press of a
button it will take over up to 100% of the tasks of the driver. To switch back
to manual driving you can press the brakes or press the button again.
We
are very used to driving with adaptive cruise control and lane assist in our
current Audi Q5 and feel safe and comfortable with similar systems from
Mercedes-Benz as well. If you are unfamiliar with these two systems, go to your
local Audi, Mercedes-Benz or VW dealer and ask for a test ride with a car that
has both, you will be amazed! Being familiar with the basics of a car
accelerating / decelerating and even steering for us, we can move on to the
more advanced features built into the Mercedes-Benz S500 Intelligent Drive. One
of the main challenges for the engineers of autonomous vehicles beyond the
hardware part is predicting traffic situations and setting the right protocol
on how the autonomous vehicle should handle these.
As
you can imagine there are millions and millions of different scenarios that can
happen during any given drive and pre-programming each one would be a monstrous
job. In reality the brain of the Mercedes-Benz S500 Intelligent Drive reliefs
on a combination of pre-programmed scenarios and rules and certain
self-learning elements – even warnings submitted from other autonomous vehicles
are possible.
We
pull out of the parking lot and engage the system, from the driver is only here
as a safety precaution and if all goes well the autonomous Mercedes-Benz
S-Class should complete the lap around the city and highway without any human
intervention. The first obstacles presents itself within a few hundred meters
from our starting point; a four-lane intersection with traffic lights. At this
stage the S500 Intelligent Drive gives a clear voice command: Traffic Light is
Red and stops at the designated spot. Once the light shows green it turns left
along the pre-defined route towards the highway. We pass a few more traffic
lights and in each case it gives an assuring “Traffic Light is Green” or
“Traffic Light is Red” audio signal.
Now
we are reaching a critical point in our journey; the onramp to the Highway with
a very short merging lane. The light goes green and the S500 accelerates up the
onramp and as we reach the crest of the onramp we can see the traffic passing
us on the highway. Briefly the car withheld the throttle before accelerating
hard, blinking to the left and merging exactly in a gap between two vehicles on
the highway. The tricky part here is for the car to look back and analyze the
traffic coming from behind. It passed the test nicely and I dare to say I felt
safer than with some friends and taxi drivers who did similar maneuvers in my
past.
The
intelligent drive S500 knows we have to exit again in a few miles so it stays
on the right lane and smoothly leaves the highway again. The rest of the
journey feels like a walk in the park. The only place where driver
intervention, or confirmation as you wish, was necessary was at one of these
typical California only situation with an intersection where cars are allowed
to turn right on a red light. Slowly the car inched forwards towards the
corner, waiting patiently for passing traffic to clear. As soon as the right
turn was safe, it prompted for the driver to confirm it wanted to turn. Once
confirmed the car moved around the corner and continued as usual.
Back
at the MBRDNA Headquarters in Sunnyvale the Mercedes-Benz S500 Intelligent
Drive had one more trick up its sleeve, it can actually park itself. The
Mercedes-Benz S500 Intelligent Drive combines a lot of existing systems
available in ordinary cars today like adaptive cruise control, lane assist,
automatic collision prevention, parking assistance, etc and takes it to the
next level with a car that connects all systems and adds a level of AI we
haven’t seen on any car up to today.
Generally
the public opinion is very biased when it comes to autonomous cars. Safety and
legal concerns are a main issue. But a lot of people also fear the idea of not
being able to drive themselves any more. As much as we like driving ourselves,
we don’t have to worry. There will not suddenly be a choice between autonomous
cars and cars you can drive yourself at the showroom. Instead step by step
ordinary cars will be equipped with systems that give you a great deal of
choice over the tasks you like to do while driving and which you don’t. Overall
it aids safety, many systems function just like an extra pair of eyes, and
comfort, as tasks you don’t like can be left to the car.
Already
we rely for a great deal on automated systems like adaptive cruise control and
traffic jam assistant. Even in a sportscar a traffic jam remains a traffic jam
and if I have a chance I prefer not to drive myself but let the car do it for
me in all safety and comfort. The car we drove is clearly a prototype and not
ready to hit the market from today to tomorrow, but the introduction of a fully
autonomous car towards the end of this decade is feasible.
Mercedes-Benz
even takes it one step further and is already working on the car interior of
the future. A car interior that focusses on the opportunities once the driver
doesn’t need to sit behind the wheel all the time anymore. At the CES in Las
Vegas in January 2015 Mercedes-Benz will reveal a new concept car that embodies
their vision for the (autonomous) car interior of the future and you can see
some exclusive renders and impressions in the photo gallery above.
So
what happens in the meantime? First expect highway driving and low speed tasks
like parking to be automated by new systems. Over the next years also other
safety systems like traffic light recognition will find their way on new cars.
Each step coming closer to cars that can fully take away the driving tasks and
responsibility from the driver. As the Mercedes-Benz S500 Intelligent Drive has
shown us, the autonomous car is gaining momentum quickly and is clearly on a
path to perfection!
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