24-GHz radar

  • 18-Aug-2009 11:44 EDT

The 24-GHz AC100 radar system from TRW Automotive Holdings provides a number of safety features. With distance and collision warning, urban safety, follow-to-stop adaptive cruise control (ACC), and activation of reversible restraint systems and braking, the AC100 offers much of the functionality of the company’s production 77-GHz system yet at a lower cost. When operating as ACC, the system acts as normal cruise control, which holds the vehicle at a set speed until a slower vehicle appears in front, and then automatically brakes and accelerates the vehicle as needed to maintain a driver-selected gap (constant time interval) behind the slower vehicle. The information from the radar is analyzed by electronics contained in the ACC unit. Suitable for most normal driving conditions including highway driving at up to 140 km/h (87 mph), the AC100 system captures data up to a range of approximately 150 m (492 ft).

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