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What is brake pulse?

Published in Automotive 2 mins read

Brake pulse is a safety feature in some vehicles that helps prevent the wheels from locking up during braking, especially on slippery surfaces. It's an electronic system that rapidly and automatically releases and applies the brakes, creating a pulsing effect that helps maintain traction and control.

How Brake Pulse Works

  • Sensors: The system uses sensors to detect wheel speed and brake pressure.
  • Electronic Control Unit (ECU): An ECU monitors the sensor data and determines if the wheels are nearing a lock-up condition.
  • Brake Actuator: When the ECU detects a potential lock-up, it instructs the brake actuator to briefly release and then reapply brake pressure, creating the pulsing effect.

Benefits of Brake Pulse

  • Improved Braking Control: By preventing wheel lock-up, brake pulse enhances braking control, especially on slippery surfaces like ice or snow.
  • Reduced Stopping Distance: Maintaining traction allows for shorter stopping distances compared to locked wheels, leading to safer braking.
  • Enhanced Stability: Brake pulse helps maintain vehicle stability during braking, reducing the risk of skids or spins.

Examples of Brake Pulse

  • Anti-lock Braking System (ABS): ABS is a common and sophisticated system that includes brake pulse as a key component.
  • Electronic Stability Control (ESC): ESC systems often incorporate brake pulse technology to maintain stability during sudden maneuvers or emergency braking.

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