Sensing misalignment detection and estimation system

Details Sensing misalignment detection and estimation system Sensing misalignment detection and estimation system

2007-02-21

2010-10-12

To, Tuan C (Department: 3663)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Vehicle diagnosis or maintenance indication

C073S514010, C180S282000, C280S735000

Reexamination Certificate

active

07813851

ABSTRACT:
A misalignment detection sensor assembly is provided, which includes a forward-looking sensor having a sensing direction along a first axis and an inertia sensor configured to sense acceleration along a second axis, the second axis having a fixed relationship with respect to the first axis. A misalignment detection system uses the misalignment detection sensor assembly and a signal processing system to calculate a misalignment angle between the first axis and the direction of forward motion of the sensor assembly. A method of detecting angular misalignment of a forward-looking sensor assembly is also disclosed, which includes measuring acceleration along an axis having a fixed relationship with respect to the sensing axis of the forward-looking sensor assembly and comparing the acceleration measurement with a predetermined threshold.

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International Search Report and Written Opinion—PCT/US08/53823—mailed on Sep. 18, 2008.

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