Periodic rate sensor self test
First Claim
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1. A method for verifying proper operation of a motion sensor comprising the steps of:
- (a) providing a motion sensor;
(b) injecting a test pulse into the motion sensor;
(c) measuring the output of the motion sensor after a predetermined delay period;
(d) comparing the motion sensor output to an acceptable output range; and
(e) declaring a fault upon determining that the sensor output measured in step (a) is outside of the acceptable output range.
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Abstract
A periodic test signal is injected into a motion sensor and the sensor output is compared to a threshold to determine whether the sensor is functioning properly.
34 Citations
20 Claims
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1. A method for verifying proper operation of a motion sensor comprising the steps of:
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(a) providing a motion sensor;
(b) injecting a test pulse into the motion sensor;
(c) measuring the output of the motion sensor after a predetermined delay period;
(d) comparing the motion sensor output to an acceptable output range; and
(e) declaring a fault upon determining that the sensor output measured in step (a) is outside of the acceptable output range. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15, 19, 20)
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- 16. The method of clam 15 wherein the injected test signal from step (b) is passed through a digital filter prior and further wherein the digital filter generates an output signal at a rate of N2 with N1<
Specification