continued from part 2 - Controller General of Patents, Designs, and ...

(12) PATENT APPLICATION PUBLICATION (21) Application No.1742/KOL/2008 A
(19) INDIA
(22) Date of filing of Application :15/10/2008 (43) Publication Date : 05/06/2009
(54) Title of the invention : CONTROL SYSTEM FOR A TORQUE TRANSMITTING DEVICE IN AN AUTOMATIC
TRANSMISSION
(51) International classification
:F16D25/0638;
F16D25/06
(31) Priority Document No :11/937,731
(32) Priority Date :09/11/2007
(71)Name of Applicant :
1)GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Address of Applicant :300 GM RENAISSANCE CENTER,
DETROIT, MICHIGAN U.S.A.
(72)Name of Inventor :
1)SHUSHAN BAI
(33) Name of priority country :U.S.A.
(86) International Application No
:NA
Filing Date
:NA
(87) International Publication No : NA
(61) Patent of Addition to Application Number :NA
Filing Date
:NA
(62) Divisional to Application Number
:NA
Filing Date
(57) Abstract :
:NA
A control system for controlling a torque transmitting device in a transmission includes a controller, a plurality of solenoids, and a
valve assembly. The valve assembly has a plurality of signal control areas in communication with the solenoids that are used to
control the torque transmitting device to provide multiple gains of torque transmission.
No. of Pages : 27 No. of Claims : 17
The Patent Office Journal 05/06/2009 26317