Vehicular traveling direction measuring system

Details Vehicular traveling direction measuring system Vehicular traveling direction measuring system

1991-05-20

1992-09-29

Black, Thomas G.

Boots, shoes, and leggings

364449, 36442401, 33356, G06F 1550

Patent

active

051518627

ABSTRACT:
A system for measuring a traveling direction of a vehicle includes a geomagnetic sensor and a gyro sensor. The system utilizes first and second indices for deriving the vehicle traveling direction. The first index is indicative of a disturbance of the geomagnetic field on a short distance basis, and the second index is indicative of a disturbance of the geomagnetic field on a long distance basis. The system varies a rate of dependence upon the geomagnetic sensor and the gyro sensor based on values of the first and second indices when calculating the vehicle traveling direction.

REFERENCES:
patent: 4429469 (1984-02-01), Tsushima et al.
patent: 4893246 (1990-01-01), Iihoshi et al.
patent: 4924402 (1990-05-01), Ando et al.

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