Method and system for recognizing the sign of the velocity...

Details Method and system for recognizing the sign of the velocity... Method and system for recognizing the sign of the velocity...

2007-09-11

2007-09-11

Camby, Richard M. (Department: 3661)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Indication or control of braking, acceleration, or deceleration

C701S001000, C701S072000, C073S511000, C340S440000

Reexamination Certificate

active

11531517

ABSTRACT:
A method of estimating the slope of a road surface on which is positioned a motor vehicle. The slope is determined by measuring the velocity and longitudinal acceleration of the vehicle by means of a mathematical model based on the relation Ax={dot over (ν)}+g sin α, where Axis longitudinal acceleration, {dot over (ν)} indicates the component of longitudinal acceleration of the vehicle along the road surface, g is the gravitational acceleration, and α represents the angle of inclination of the road surface.

REFERENCES:
patent: 5832400 (1998-11-01), Takahashi et al.
patent: 6389345 (2002-05-01), Phelps
patent: 6718248 (2004-04-01), Lu et al.
patent: 2857925 (2005-01-01), None
patent: 2000-27673 (2000-01-01), None
patent: 2000-35117 (2000-02-01), None

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