Patent ID: 6052635
Filing Date: 2000-04-18
Classification: B60R

Abstract:
A system for triggering a restraining device in a motor vehicle, comprising:an evaluation device for evaluating an impact signal of a sensor for detecting an accident of a motor vehicle;an ignition device disposed spatially separate from said evaluation device in the motor vehicle;an ignition element for triggering a restraining device of the motor vehicle electrically connected to said ignition device;said ignition device including a logic circuit for evaluating a message transmitted from said evaluation device, an ignition capacitor providing a necessary energy for firing said ignition element;a line electrically connected between said evaluation device and said ignition device, said line carrying a composite signal formed by a d.c. signal for operating said logic circuit of said ignition device and an alternating signal transmitted additively to the d.c. signal and containing the message to be evaluated in said logic circuit; andsaid ignition device including a filter circuit for deriving the d.c. signal and the alternating signal from the composite signal.