Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Indication or control of braking – acceleration – or deceleration
Reexamination Certificate
2008-07-15
2008-07-15
Black, Thomas G. (Department: 3661)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Indication or control of braking, acceleration, or deceleration
C701S072000, C701S208000, C180S171000
Reexamination Certificate
active
07400963
ABSTRACT:
A vehicle curve speed control system (10) adapted for use with a vehicle (12) having an operator (14), includes a map database (16) representing a current vehicle path, and a locator device (20) communicatively coupled to the database (16) and configured to determine the location of the vehicle (12) on the path. The system (10) further includes a controller (36) configured to identify approaching curve points of a curve (18a) in terms of curvature or radius, and determine a desired speed profile based on operator preference and/or vehicle characteristic input. An acceleration profile is determined, based on the current vehicle speed, and desired speed profile. An acceleration/deceleration command at the present control loop is modified towards achieving an optimal curve speed, and is delivered to either a brake or acceleration module (40,42) to automatically accelerate or decelerate the vehicle (12) accordingly.
REFERENCES:
patent: 6092014 (2000-07-01), Okada
patent: 6577937 (2003-06-01), Shuman et al.
patent: 6836719 (2004-12-01), Andersson et al.
patent: 7266438 (2007-09-01), Kellum et al.
patent: 2007/0208485 (2007-09-01), Yamamura et al.
Deng Weiwen
Lee Yong H.
Black Thomas G.
Chen Shelley
GM Global Technology Operations Inc.
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