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Chassis & Carbody
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Braking Technology - The Electronic Wedge Brake (EWB)

Gentle braking for active safety

The electronic wedge brake utilizes a completely new braking technology based on a principle that is as simple as it is effective. Manufacturers and end customers alike will benefit from its advantages.

Technology

Technology

The electronic wedge brake uses a new technology that far exceeds the technical performance of today’s hydraulic systems. At the same time, it helps car manufacturers to accelerate and simplify their development and production.

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Architecture

The electronic wedge brake is a mechatronic solution that works without any hydraulics. Its architecture is simpler and more convenient than traditional braking systems and also offers new freedom to manufacturers

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Principles

With an electronic wedge braking system, each wheel has its own intelligent wheel-brake module. The brake is driven by two brushless motors. Commutation and current control are performed using commercial motor drives with an incremental encoder on each motor shaft.

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Functionality

Functionality

The electronic wedge brake automatically multiplies the braking force used. The kinetic energy of the vehicle itself is thereby actually used to help brake

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Active Safety

Drivers benefit especially from additional active safety. Compared to hydraulic systems, the brake responds more quickly and can be applied with a finer touch, and stopping-distance figures are optimized.

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For specific questions and information please

SAE Brake Colloquium