Vehicle occupant safety system and method for operating the same
AssigneeRobert Bosch GmbH
InventorsHugo Weller, Peter Taufer, Knut Balzer, Wilfried Burger
Life of this patent
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Abstract
A vehicle occupant safety system, in particular a restraining system such as an airbag, safety-belt tightener or the like, includes a sensor device having at least two sensors, a preprocessing device comprising at least two preprocessing circuits, for the sensor signals, a computing system and a trigger circuit including at least two stages, for a safety device. For providing a high degree of safety with relatively low costs, the computing system is constructed as a single-computer system in such a way that it processes the data of two preprocessing circuits in two programs with staggered timing with respect to one another.
Claims20
A safety system for activating a restraining device of a vehicle, comprising:
- at least two sensors, each sensor generating a respective sensor signal;
- at least two preprocessing circuits, each preprocessing circuit coupled to a respective sensor for receiving the respective sensor signals and for generating respective preprocessing signals based thereon;
- a computing system coupled to the preprocessing circuits for continuously processing the preprocessing signals in respective programs which are executed during respective time intervals which are staggered with respect to one another, and starting at times which are determined based on respective independent interrupts;
- and
- at least two trigger circuit components coupled to the computing system for activating the restraining device.
A method for activating a restraining device of a vehicle, comprising the steps of:
- generating a respective sensor signal with each of at least two sensors;
- preprocessing the sensor signals with respective preprocessing circuits coupled to each of the at least two sensors and generating respective preprocessing signals based thereon;
- continuously processing with a computing system the preprocessing signals in respective programs which are executed during respective time intervals which are staggered with respect to one another, and starting at times which are determined based on respective independent interrupts;
- and
- activating the restraining device using at least two trigger circuit components coupled to the computing system.
Dependencies are inferred from the claim text.