Patent ID: 11885620
Assignee: DENSO CORPORATION
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 15:
16. The inertial detection device of claim 15,
wherein, upon a determination that the first error condition is satisfied, the inertial detection device is further configured to generate one of at least four possible error signals:
(i) upon a determination that ΔSa>THa, and ΔSb≤THb,
then the abnormality determination unit is configured to output a first error signal indicating that the first sensor appears abnormal and that the second sensor appears normal, such that the second sensor may be used;

(ii) upon a determination that ΔSa≤THa, and ΔSb>THb,
then the abnormality determination unit is configured to output a second error signal indicating that the first sensor appears normal and that the second sensor appears abnormal, such that the first sensor may be used;

(iii) upon a determination that ΔSa>THa, and ΔSb>THb,
then the abnormality determination unit is configured to output a third error signal indicating that both of the first and second sensors appear to be abnormal; and

(iv) upon a determination that ΔSa≤THa, and ΔSb≤THb,
then the abnormality determination unit is configured to output a fourth error signal indicating indeterminateness,

wherein ΔSa is an offset value of the first angular velocity signal,
wherein ΔSb is an offset value of the second angular velocity signal,
wherein THa is a first offset threshold, and
wherein THb is a second offset threshold.