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1. WO2020117563 - YAW ESTIMATION

Publication Number WO/2020/117563
Publication Date 11.06.2020
International Application No. PCT/US2019/063341
International Filing Date 26.11.2019
IPC
E02F 3/84 2006.01
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING
FDREDGING; SOIL-SHIFTING
3Dredgers; Soil-shifting machines
04mechanically-driven
76Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling devices
80Component parts
84Drives or control devices therefor
CPC
E02F 3/7613
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
FDREDGING; SOIL-SHIFTING
3Dredgers; Soil-shifting machines
04mechanically-driven
76Graders, bulldozers, or the like with scraper plates or ploughshare-like elements
7609Scraper blade mounted forwardly of the tractor on a pair of pivoting arms which are linked to the sides of the tractor, e.g. bulldozers
7613with the scraper blade adjustable relative to the pivoting arms about a vertical axis, e.g. angle dozers
E02F 3/7618
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
FDREDGING; SOIL-SHIFTING
3Dredgers; Soil-shifting machines
04mechanically-driven
76Graders, bulldozers, or the like with scraper plates or ploughshare-like elements
7609Scraper blade mounted forwardly of the tractor on a pair of pivoting arms which are linked to the sides of the tractor, e.g. bulldozers
7618with the scraper blade adjustable relative to the pivoting arms about a horizontal axis
E02F 3/845
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
FDREDGING; SOIL-SHIFTING
3Dredgers; Soil-shifting machines
04mechanically-driven
76Graders, bulldozers, or the like with scraper plates or ploughshare-like elements
80Component parts
84Drives or control devices therefor ; , e.g. hydraulic drive systems
844for positioning the blade, e.g. hydraulically
845using mechanical sensors to determine the blade position, e.g. inclinometers, gyroscopes, pendulums
E02F 9/264
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
FDREDGING; SOIL-SHIFTING
9Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
26Indicating devices
264Sensors and their calibration for indicating the position of the work tool
G01C 19/00
GPHYSICS
01MEASURING; TESTING
CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
19Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
Applicants
  • CATERPILLAR TRIMBLE CONTROL TECHNOLOGIES LLC [US]/[US]
Inventors
  • GREEN, Francisco R.
Agents
  • CATMULL, Kelvin B.
Priority Data
16/213,09507.12.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) YAW ESTIMATION
(FR) ESTIMATION DE LACET
Abstract
(EN)
Methods and systems are described for estimating yaw of an implement relative to a machine. The yaw is estimated using gyro signals. The gyro signals may be provided by gyro sensors such as IMUs that are coupled to the implement and machine.
(FR)
La présente invention concerne des procédés et des systèmes permettant d'estimer le lacet d'un outil par rapport à une machine. Le lacet est estimé à l'aide de signaux gyroscopiques. Les signaux gyroscopiques peuvent être fournis par des capteurs gyroscopiques, tels que des IMU qui sont couplés à l'outil et à la machine.
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