Market Overview

Hyundai Mobis Develops a Dual-Mode Electronic Steering System Optimized for Autonomous Driving

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The redundant control mode prevents accidents due to steering errors
in the autonomous driving mode

Planning to complete reliability evaluation including road tests by
the end of 2018…aiming for mass-production in 2020

Leading the market with the autonomous driving package technology
ranging from independent sensors to safety control

Hyundai
Mobis
(KRX:012330) succeeded in developing a customized steering
system optimized for autonomous vehicles. It is a cutting-edge
technology with no case of mass-production as of yet. Just 10 years
after its production of the electric power steering system back in 2006,
it stands shoulder to shoulder with global-leading competitors and
firmly established itself as a technology leader.

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https://www.businesswire.com/news/home/20180725006009/en/

Hyundai Mobis developed an electric power steering system which uses the redundant control mode that ...

Hyundai Mobis developed an electric power steering system which uses the redundant control mode that takes advantage of two electronic circuits during autonomous driving to maintain normal steering capabilities under any circumstances. It is a cutting-edge technology with no case of mass-production as of yet. Just 10 years after its production of the electric power steering system back in 2006, it stands shoulder to shoulder with global-leading competitors and firmly established itself as a technology leader. (Photo: Business Wire)

Going a step beyond sensors, e.g. radars and cameras, the core
technologies for implementing autonomous driving, Hyundai Mobis secured
proprietary technologies in steering and braking essential to the safe
driving and stopping of autonomous vehicles.

On July 25, Hyundai
Mobis
announced that it developed an electric power steering system
which uses the redundant control mode that takes advantage of two
electronic circuits during autonomous driving to maintain normal
steering capabilities under any circumstances.

The normal operation of the steering system in the autonomous driving
environment, in which the vehicle operates on its own without the
driver's control, is a requirement directly related to the safety of
passengers. Even if the steering system runs into an unexpected problem
while the car is being driven, the system must detect the issue by
itself and normally control the steering wheel before stable autonomous
driving is possible.

By developing this new technology, Hyundai Mobis further reinforced its
status as a high-tech company that provides an integrated solution
necessary for autonomous driving ranging from sensors to control,
encompassing steering and braking.

All parts are redundantly designed and then independently
controlled...Two brains are at work

Hyundai Mobis redundantly designed all core electronic components
(sensors, ECUs, motors, etc.) of the steering system so that normal
steering is possible in any situation.

As two independent electronic circuits are applied to one steering
system, even if one circuit breaks down, the other circuit will work
normally and maintain stable driving.

In the existing electric power steering system, if the driver turns the
steering wheel, the internal sensor will read the torque and the
steering angle and send a signal to the electronic control unit (ECU).
The ECU computes the input data and moves the motor with an appropriate
value to control the vehicle in the direction desired by the driver.

In this case, if the steering system has any problem, the driver will be
able to take emergency measures, such as reducing speed and moving the
car to a safe place on the road.

However, things will be different in the autonomous driving mode. As the
driver is not looking ahead during autonomous driving, if the steering
system has any problem, the driver cannot intervene immediately, and the
risk of an accident will increase.

To ensure that normal steering capabilities are maintained in this
situation, Hyundai Mobis developed two independent electronic circuits.
The company ensured a high level of safety using twin systems that watch
over each other.

To implement this new technology, the ability to reduce the size of
electronic components (HW) and develop software (SW) is essential.

To start with, Hyundai Mobis succeeded in reducing the size of the
electronic control unit (ECU) which plays the role of the human brain in
the electric power steering system. It utilized small electronic devices
to reduce its size in half while ensuring that it performs the same
functions.

Configuring the system redundantly (redundant design) and reducing its
size belong to the hardware area, whereas operating the two systems and
making them perform belong to the software area.

The two systems watch over each other through high-speed communication,
and check if the counterpart is working normally. If a problem is
detected, System No. 1 is turned off, and System No. 2 will be
activated. This is how the vehicle is controlled. As a result, the
vehicle can maintain a normal steering status under any circumstances.

To further advance the technology, Hyundai Mobis is conducting
reliability evaluations including road tests. It is planning to finish
the verification tests in general driving conditions, such as
expressways, downtown and parking, by the end of 2018, and start
mass-production in 2020.

From independent sensors to steering and braking…providing an
integrated solution for autonomous driving

Hyundai Mobis places top priority on the safety of passengers in
developing the autonomous driving system. The company has gone to the
effort to establish a technology roadmap. According to this roadmap, the
company will proprietarily develop the core technologies in implementing
autonomous driving by 2020, such as deploying radars, cameras and Lidar,
essentially, all sensors.

Currently, it is developing high-performance economical radars, which
detects 360° around the vehicle, through a partnership with two German
specialists, and it is also seeking to develop cameras based on Deep
Learning, the AI technology, through cooperation with domestic and
overseas startups.

For autonomous vehicles to be able to protect the safety of passengers
and produce the best performance, sensor technology alone is not enough.
"Autonomous driving will be realized only when the state-of-the-art
technologies in safety control, such as steering and braking, as well as
sensor and positioning technology, come to fruition," stated Kim Se-il,
head of the Chassis Division R&D Center of Hyundai Mobis. "As Hyundai
Mobis is capable of providing various packaged systems necessary for
autonomous driving, it will lead the market in the future."

Recently, Hyundai Mobis has been reinforcing its own technology
development competency, which it has accumulated over a long period of
time as a global total parts supplier and is actively seeking
cooperation with professional partners. By doing so, the company will
secure the core technology of autonomous driving ranging from sensors to
control in early stages and provide integrated solutions to automakers.

About Hyundai Mobis

Hyundai Mobis is a global tier-1 automotive supplier. It was established
in 1977, and is headquartered in Seoul, Korea. The corporate philosophy
is to become a lifetime partner with technologies for automobiles and
people.

Hyundai Mobis currently employs over 30,000 people. Manufacturing
operations are in over 30 locations in 10 countries, including Korea,
China, and the U.S. Products include automotive modules (chassis,
cockpit and front-end), brakes, suspensions, airbags, lamps, and
automotive electronics. R&D headquarters are in Korea with 4 technical
centers worldwide, Germany, China, India, and the U.S.

Hyundai Mobis has mass-produced a great number of ADAS technologies and
green car components. For more information: http://mobis.co.kr/.

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