Inclination detector and onboard apparatus
AssigneeMitsubishi Electric Corporation
InventorToshiyuki Yamashita
Life of this patent
Estimating the term…
Abstract
A real acceleration computing unit 3 calculates the real acceleration Gw in the direction of travel of a vehicle by acquiring the velocity V a wheel speed sensor 12 installed in the vehicle detects. A road surface gradient computing unit 5 calculates the inclination of a road surface (road surface gradient θ1) from the real acceleration Gw and the accelerations Gx and Gz in the back and forth and up and down directions of the vehicle an acceleration sensor 11 installed in the vehicle detects. A pitching angle computing unit 6 calculates the inclination of the vehicle with respect to the road surface (pitching angle θ2) from the real acceleration Gw and the accelerations Gx and Gz.
Claims10
An inclination detector comprising:
- an inclination computing unit that calculates one of or both of a road surface gradient and a pitching angle from acceleration in back and forth direction and acceleration in up and down direction of a vehicle and from real acceleration in direction of travel of the vehicle, the road surface gradient being an inclination in back and forth direction of a road surface on which the vehicle is placed, and the pitching angle being an inclination in the back and forth direction of the vehicle with respect to the road surface.
Dependencies are inferred from the claim text.