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US 8,509,993 B2Granted
Systems and methods for controlling a vehicle along a road with a road bank
AssigneeGM Global Technology Operations LLC
InventorsJihan Ryu, Flavio Nardi, Kevin A. O'Dea, Hualin Tan
Life of this patent
Estimating the term…
Abstract
Systems and methods for detecting road bank and determining road bank angle include determining a road bank angle as a function of difference in slip angle where the difference in slip angle is a function of difference in course angle and difference in yaw angle.
Claims20
A system for controlling a vehicle, comprising:
- a mapping sensor configured to measure course angle along a road;
- a yaw rate sensor configured to measure yaw rate of the vehicle;
- a processor;
- and
- a memory comprising computer-executable instructions that, when executed by the processor, cause the processor to:
- calculate a difference in slip angle, including:
- calculating a difference in course angle based on course angles measured by the mapping sensor;
- calculating a difference in yaw angle based on yaw rate measured by the yaw rate sensor;
- and
- calculating the difference in slip angle as a difference between:
- the difference in course angle;
- and
- the difference in yaw angle;
- and
- calculate a road bank angle based on the difference in slip angle.
12 more elements
A system for controlling a vehicle, comprising:
- a mapping sensor configured to measure course angle along a road;
- a yaw rate sensor configured to measure yaw rate of the vehicle;
- an accelerometer configured to measure lateral acceleration of the vehicle;
- a speedometer configured to measure longitudinal speed of the vehicle;
- a processor;
- and
- a memory comprising computer-executable instructions that, when executed by the processor, cause the processor to:
- calculate a first difference in slip angle, including:
- calculating a difference in course angle based on course angles measured by the mapping sensor;
- calculating a difference in yaw angle based on yaw rate measured by the yaw rate sensor;
- calculating the first difference in slip angle as the difference between:
- the difference in course and
- the difference in yaw angle;
- calculate a second difference in slip angle based on:
- lateral acceleration measured by the accelerometer;
- yaw rate measured by the yaw rate sensor;
- and
- longitudinal speed measured by the speedometer;
- and
- detect a road bank based on the first slip angle difference and the second slip angle difference.
17 more elements
A non-transitory computer-readable medium comprising computer-executable instructions for controlling a vehicle, the computer-executable instructions, when executed by a processor, causing the processor to:
- calculate a difference in slip angle, including:
- calculating a difference in course angle based on course angles measured by a mapping sensor;
- calculating a difference in yaw angle based on a yaw rate measured by a yaw rate sensor;
- calculating the difference in slip angle as a difference between:
- the difference in course angle;
- and
- the difference in yaw angle;
- calculate a road bank angle based on the difference in slip angle.
5 more elements
Dependencies are inferred from the claim text.