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Hyundai Mobis develops new brake system optimized for Level 4+ autonomous driving; new redundancy technology

Hyundai Mobis has developed a new safety brake system optimized for fully autonomous driving at level 4 or 5. Autonomous driving cars must be able to handle emergency situations by themselves at levels 4 and 5, the highest level.

Hyundai Mobis’‘redundancy brake system’ features an emergency brake system that is activated by itself even if the standard brakes do not work normally due to failure of electrical devices or external shock.


As autonomous driving evolves to a higher level, the intervention of the driver decreases, and redundancy becomes essential to secure the precision safety technology in preparation for an emergency situation. Accordingly, active efforts to develop redundancy technologies in key automotive parts including the brake system are being made.

The redundancy brake system consists of two electronic brake systems, the ECU, which is the brain for controlling them, and the software control platform.

At normal times, the two controllers are connected to each other and exchange data, but if the main brake system is not working normally, the controller detects it, and orders the auxiliary brake system to start working.

The core of this technology is the software platform that helps the control make a correct judgment at this time. During autonomous driving, numerous variables, which perceive external environments, must be taken into consideration.

Hyundai Mobis says it is the first company successfully to develop the redundancy brake system at a level that can be immediately applied to passenger cars or SUVs.



This duplicate brake system would certain add to ADVs safety and security.

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