Sensor arrangement, particularly for a passenger protection system of a motor vehicle

Abstract

The invention relates to a sensor arrangement, particularly for a passenger protection system of a motor vehicle, comprising a first group of sensors (10, 12) by means of which a first group of state parameters jointly usable by a decision-making unit connected downstream for detecting a first event can be detected, a first digital unit (20) coupled on the input side to at least one sensor (12) of the first sensor group, processing the sensor output signals fed thereto and providing the same for forwarding to the decision-making unit as digital values, wherein - a second group of sensors (14,16, 18), by means of which a second group of state parameters jointly usable by the decision-making unit connected downstream for detecting a second event can be detected, - a second digital unit coupled on the input side to at least one sensor (16, 18) of the second sensor group, processing the sensor output signals fed thereto and providing the same for forwarding to the decision-making unit asdigital values, wherein - at least one sensor (10) of the first sensor group is coupled to the second digital unit (22) and at least one sensor (14) of the second sensor group is coupled to the firstdigital unit (20), and - the digital units (20, 22) are coupled on the output side to a first and a second node (28, 30) combining the digital values fed to each to corresponding first and second output lines (32, 34), such that the first node (28) combines the digital values corresponding to the sensors (10, 12) of the first sensor group to the first output line (32), and the second node (30) combines the digital values corresponding to the sensors (14, 16, 18) of the second sensor group to the second output line (34).

Description

technical field [0001] The invention relates to a sensor device, in particular for a motor vehicle occupant protection system, comprising: [0002] - a first set of sensing mechanisms, through which a first set of state parameters are detected, and the first set of state parameters are jointly used to identify the first event via the next connected judging unit; [0003] - A first digital unit, which is connected on the input side to the sensors of the first sensor system, processes the sensor output signals fed to it and forwards them as digital values ​​to the evaluation unit. Background technique [0004] Devices of this type are often referred to as so-called crash recognition systems. In general, a set of sensors consists of two mutually perpendicular acceleration sensors, typically aligned longitudinally and laterally of the vehicle, which detect excessive acceleration components of the vehicle and are further directed to a digital unit which For example for digital ...

AI Technical Summary

Problems solved by technology

However, the result is a complete failure of the protection system, which is not to be expected

In order to achieve enhanced performance, in each basic type, that is to say with a pure crash sensor system, a vertical channel microprocessor must be provided, which must be expended for the roll sensor system in the case of reinforcement. new cabling

Therefore, there are defects in manufacturing technology

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