Functions of integrated safety systems
Integrated collision detection
Integrated collision detection enables earlier and more reliable triggering of the safety features, such as airbags and seat belts. In fact, it can be triggered within just 25 milliseconds of impact. This is achieved by integrating data collected by the vehicle's surround sensors into the triggering mechanism of the passive safety systems. Thus information that is already available prior to an accident is used to make the crash algorithms more sensitive to impacts. This way the severity of the accident and the accident type can be determined early and accurately. The result: Restraint devices can be activated sooner and more reliably and the risk of injuries to occupants is reduced significantly.
With pre-crash positioning, occupants are brought into the ideal position in the event of an impending accident by triggering reversible restraint devices. The function also works to protect occupants in the case of automatic emergency braking. To avoid forward displacement of the occupants, which can cause injury in the event of emergency braking, pre-crash positioning uses the available information about the traffic situation from the surround sensors. Even before automatic emergency braking is activated by ESP®, the airbag control unit triggers the passive safety measures. The special feature of the pre-crash positioning is a reversible seat belt control, which is adapted to the respective brake system and brake dynamics. Pre-crash positioning deals with all accident scenarios with automatic emergency braking. Every year, around 2,800 car accidents in Germany involve injured occupants.