Traction steer detection and compensation
AssigneeGM Global Technology Operations LLC
InventorsDAVID T. DE CARTERET, LARRY G. GEPFREY, GREGORY K. PETERSON, MARK S. HOGLE
Life of this patent
Estimating the term…
Abstract
A system, method, and computer program product for detecting and compensating for a traction steer event is provided. A first wheel speed of a first driven wheel is compared with a second wheel speed of a second driven wheel to determine whether a wheel slip condition has occurred. If a wheel slip condition is determined to have occurred, a current operating state of a vehicle is compared to an expected operating state of the vehicle to determine if a traction steer event has occurred. If a traction steer event is determined to have occurred, brake pressure is selectively applied to the first or second driven wheel to compensate for the traction steer event.
Claims20
A method for detection and active compensation of a traction steer event, comprising:
- comparing a first wheel speed of a first driven wheel with a second wheel speed of a second driven wheel to determine whether a wheel slip condition has occurred;
- if a wheel slip condition is determined to have occurred, comparing a current operating state of a vehicle to an expected operating state of the vehicle to determine if a traction steer event has occurred;
- and
- if a traction steer event is determined to have occurred, selectively applying brake pressure to the first or second driven wheel to compensate for the traction steer event.
A system for detecting and compensating for a traction steer event, comprising:
- means for comparing a first wheel speed of a first driven wheel with a second wheel speed of a second driven wheel to determine whether a wheel slip condition has occurred;
- if a wheel slip condition is determined to have occurred, means for comparing a current operating state of a vehicle to an expected operating state of the vehicle to determine if a traction steer event has occurred;
- and
- if a traction steer event is determined to have occurred, means for selectively applying brake pressure to the first or second driven wheel to compensate for the traction steer event.
A computer program product for detecting and compensating for a traction steer event, the computer program product comprising a computer-readable storage medium having computer-readable program code portions stored therein, the computer-readable program code portions comprising:
- a first executable portion for comparing a first wheel speed of a first driven wheel with a second wheel speed of a second driven wheel to determine whether a wheel slip condition has occurred;
- a second executable portion for, if a wheel slip condition is determined to have occurred, comparing a current operating state of a vehicle to an expected operating state of the vehicle to determine if a traction steer event has occurred;
- and
- a third executable portion for, if a traction steer event is determined to have occurred, selectively applying brake pressure to the first or second driven wheel to compensate for the traction steer event.
Dependencies are inferred from the claim text.