In the field of passive safety systems Bosch utilizes over 25 years of experience to develop future-oriented and reliable occupant-safety electronics. These include systems such as airbags and seat-belt tensioners which are triggered during a crash event in order to provide optimum occupant protection. Bosch develops and manufactures electronic components which precisely control these passive safety systems during the crash. The central airbag control unit evaluates sensor signals to identify the force and direction of an impact and triggers the vehicle's restraint devices as required.