A new system that not only warns drivers of collision risks, but also independently jams on the brakes to minimize an inevitable crash has been developed in a research project at Linköping University. Calculations show that the system reduces the risk of severe and fatal traffic injuries by five percent.
The findings of the project, which has been carried out in collaboration between the Section for Control and Communication at Linköping University and Volvo Car Corporation, are now being made public for the first time in a dissertation by Jonas Jansson; Collision Avoidance Theory-With Application to Automotive Collision Mitigation.
The system is mainly based on two components: a radar sensor that measures the distance to vehicles in front of the vehicle and a computer that makes decisions and applies the brakes if necessary. This happens less than a second before an inevitable collision-if the driver hasn’t already acknowledged the warning signals from the system. If the speed is reduced by between zero and 15 kilometers per hour, then the risk of injury is decreased by 15 percent, calculated on existing collision statistics for tailgating accidents. Since such collisions account for a third of all collisions leading to injuries, this means a total reduction of severe and fatal injuries of five percent.
Åke Hjelm | alfa
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