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Pre-Crash Safety System
The pre-crash safety system, the world’s first such system, identifies inevitable obstacles a split second prior to collision, automatically tightens passenger seatbelts, and activates a pre-crash brake system to reduce vehicle speed.
DENSO developed the system jointly with Toyota Motor Corporation, and introduced it in Japan in February 2003 and in the North America in March 2004.
DENSO developed three key components for the system including:
- Millimeter-wave radar, which detects vehicles and obstacles ahead.
- Pre-crash electronic control unit (ECU), which processes information gathered by the radar to determine if the vehicle will hit the obstacle, and then sends signals regarding distance and relative speed of the obstacle to the pre-crash seatbelt ECU and the brake system.
- Pre-crash seatbelt ECU that retracts the seatbelt mechanism based on signals from the pre-crash ECU.
DENSO Technology – Leading the World
- DENSO’s small, light-weight millimeter-wave radar can detect obstacles over a horizontal plane with the world’s widest angle, 20 degrees, and excellent detection accuracy of 0.5 degrees.
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