Method for the control of a vehicle safety device
First Claim
1. A method for the control of a vehicle safety device comprising the following steps:
- measuring the signals (Y_accel, Z_accel) of at least two motion sensors which are independent of one another in that they are arranged or designed for the measurement of movements in a different direction and/or for the measurement of movements of a different type;
comparing the absolute amount of the signal (Y_accel;
Z_accel) of at least one of the motion sensors with at least one threshold value (Y_thresh;
Z_thresh) fixed for this signal;
comparing the absolute amount of the signal (Z_accel;
Y_accel) of at least a further one of the motion sensors with at least one threshold value (Z_min_thresh;
Y_min_thresh) fixed for this signal; and
classifying a vehicle movement as critical or non-critical in dependence on the comparison results.
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Abstract
The invention relates to a method for the control of a vehicle safety device, wherein signals of at least two motion sensors are measured which are independent of one another in that they are designed or arranged for the measurement of movements of a different direction and/or type, the absolute amount of the signal of at least one motion sensor is compared with at least one threshold fixed for this signal, the absolute amount of the signal of at least a further one of the motion sensors is compared with a threshold fixed for this further motion sensor and the vehicle, movement is classified as critical or not critical in dependence on the comparison results.
37 Citations
16 Claims
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1. A method for the control of a vehicle safety device comprising the following steps:
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measuring the signals (Y_accel, Z_accel) of at least two motion sensors which are independent of one another in that they are arranged or designed for the measurement of movements in a different direction and/or for the measurement of movements of a different type;
comparing the absolute amount of the signal (Y_accel;
Z_accel) of at least one of the motion sensors with at least one threshold value (Y_thresh;
Z_thresh) fixed for this signal;
comparing the absolute amount of the signal (Z_accel;
Y_accel) of at least a further one of the motion sensors with at least one threshold value (Z_min_thresh;
Y_min_thresh) fixed for this signal; and
classifying a vehicle movement as critical or non-critical in dependence on the comparison results. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16)
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15. A vehicle safety device comprising:
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at least two motion sensors which are arranged or designed independently of one another in that they can serve for the measurement of movements in different directions and/or for the measurement of movements of different types;
a memory device for the storage of threshold values for the signals of the at least two independent motion sensors;
a comparator for the comparison of the absolute amounts of the signals of the at least two motion sensors with threshold values;
an evaluation device for the classification of the vehicle movement as critical when the absolute amount of the signal of at least one motion sensor reaches or exceeds a threshold value associated with it and the absolute amount of the signal of at least one further motion sensor reaches or exceeds a threshold value associated with it.
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Specification