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

Claim 10:
11. An inertial detection device comprising:
a first sensor configured to:
(i) detect a first angular velocity about a first sensor axis, and
(ii) generate a first angular velocity signal;

a second sensor configured to:
(i) detect a second angular velocity about a second sensor axis, and
(ii) generate a second angular velocity signal,

wherein the first sensor axis points:
(i) in a same direction as the second sensor axis, or
(ii) in an opposite direction that is defined as opposite to the second sensor axis,

an abnormality determination unit configured to determine that one of the first sensor and the second sensor is abnormal in response to a first error condition being satisfied, wherein the first error condition is associated with:
(i) the first angular velocity,
(ii) the second angular velocity, and
(iii) a difference threshold,

wherein
when one of the first sensor and the second sensor is determined to be abnormal, the abnormality determination unit is configured to
compare the first output signal with a first output signal threshold value,
compare the second output signal with a second output signal threshold value, and
specify which of the first sensor or the second sensor is abnormal, and

wherein
the first output signal threshold value and the second output signal threshold value are determined for the first sensor and the second sensor, respectively.