Absolute acceleration sensor for use within moving vehicles

Details Absolute acceleration sensor for use within moving vehicles Absolute acceleration sensor for use within moving vehicles

2007-07-03

2007-07-03

Jeanglaude, Gertrude A. (Department: 3661)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Indication or control of braking, acceleration, or deceleration

C701S079000, C340S467000

Reexamination Certificate

active

11243364

ABSTRACT:
A method of and system for detecting absolute acceleration along various axes relative to a desired movement vector while moving relative to a gravity source includes steps of determining a vertical acceleration, perpendicular to the desired movement vector and substantially anti-parallel to a gravitational acceleration due to the gravity source; determining a longitudinal acceleration, parallel to the desired movement vector and to output at vertical acceleration signal and a longitudinal acceleration signal; determining an inclination of the desired movement vector relative to the gravitational acceleration; and processing the vertical acceleration signal, the longitudinal acceleration signal, and the inclination signal to produce an absolute vertical acceleration signal and an absolute longitudinal acceleration signal.

REFERENCES:
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patent: 6023221 (2000-02-01), Michelotti
patent: 6085133 (2000-07-01), Keuper et al.
patent: 6411204 (2002-06-01), Bloomfield et al.
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patent: 2002/0133282 (2002-09-01), Ryan et al.
patent: 2002/0171542 (2002-11-01), Bloomfield et al.
patent: 2004/0160315 (2004-08-01), Speckhart et al.

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