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21/02/2008
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Bosch has developed an electronics package to help OEMs develop cost-effective pedestrian protection systems.
Called Electronic Pedestrian Protection (EPP), it comprises acceleration sensors for the front end of the car and a control unit which triggers actuators that raise the hood within a fraction of a second. As an alternative, airbags are also being considered for use as impact protection. Car manufacturers can provide active impact protection with an independent control unit or they can integrate it into an airbag control unit already present in the vehicle.
A special development achievement of Bosch engineers for EPP lay in coming up with a system that is able to both reliably detect and analyse the impact. Only then can the system accurately distinguish between the impact of a human body or, for example, a shopping cart.
“We have acquired more than 3,000 data in a large number of tests,” says Bernd Hergert, head of the occupant safety business unit. “Based on this data, and with our highly intelligent algorithms, EPP can instantaneously and reliably trigger the protective mechanisms.”
Two vehicle models with EPP are set to go into series production this year.
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Author
Roger Bishop
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Copyright European Automotive Design.
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