Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Indication or control of braking – acceleration – or deceleration
Reexamination Certificate
2006-09-28
2008-10-28
Camby, Richard M. (Department: 3661)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Indication or control of braking, acceleration, or deceleration
C701S069000, C701S082000, C701S088000
Reexamination Certificate
active
07444222
ABSTRACT:
Methods and apparatus are provided for generating a slip control for an active driveline device (such as an electronic limited slip differential (eLSD)) that corrects for longitudinal tire slip in the turning wheels of a vehicle. Indicia of a yaw rate of the vehicle are obtained by the eLSD, which then determining a target velocity difference for the turning wheels based at least in upon the yaw rate, along with other factors such as difference in wheel rotation speed or the wheel-road angle of the vehicle. Using these measured parameters, a slip control signal can be applied to the eLSD as a function of the determined target velocity difference.
REFERENCES:
patent: 7276014 (2007-10-01), Goto et al.
patent: 7294086 (2007-11-01), Brissenden et al.
patent: 7357748 (2008-04-01), Kelley, Jr.
Gaffney Edmund F.
Villella Matthew G.
Camby Richard M.
GM Global Technology Operations Inc.
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