Automatic pitch mounting compensation in an automatic steering system
US11167743B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 15, 2019 |
| Grant date | Nov 9, 2021 |
| Priority date | — |
| Expiry date | Jul 6, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60W2556/50
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A calibration system calibrates inertial sensor readings on a vehicle. The calibration system estimates an attitude of the ground from a series of height and position measurements and reads an attitude from an inertial sensor subsystem attached to the vehicle. The calibration system then calculates an attitude offset between the vehicle and inertial sensor subsystem based on a difference between the estimated attitude of the ground and the attitude reading of the inertial sensor subsystem. The calibration system may estimate a slope of the ground from a 3-dimensional terrain map. The slope of the ground is converted into an estimated roll and/or pitch of the vehicle which is then compared with the roll and pitch readings from the inertial sensor subsystem to determine the attitude offset.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.