Interrelated power delivery controls – including engine control – Transmission control – Continuously variable friction transmission
Reexamination Certificate
2010-04-05
2011-11-15
Lewis, Tisha (Department: 3655)
Interrelated power delivery controls, including engine control
Transmission control
Continuously variable friction transmission
C477S046000, C477S050000, C701S055000, C701S056000
Reexamination Certificate
active
08057354
ABSTRACT:
Systems and methods for efficiently and effectively controlling the rate of change of ratio, not simply the ratio, in a CVT. By controlling the rate of change of ratio, the acceleration or deceleration of a vehicle can be controlled in an efficient manner. Furthermore, the rate of change of ratio can be controlled by controlling the clamping pressure of the pulleys and/or differential pressure between the pulleys with minimal slip by using a servo control mechanism adapted for control by a system controller based on equilibrium mapping and other control parameters.
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First Office Action, Japanese Patent Office, Patent Application No. 2006-507411, issued Dec. 15, 2009, (translation), with claims, 9 sheets; foreign counterpart of U.S. Patent No. 7,261,672 to which U.S. Appl. No. 12/754,170 claims priority, pp. 1-14.
Communication pursuant to Article 94(3) EPC, European Patent Office, Patent Application No. 04 757 663.2-2421, issued Jun. 26, 2009, with claims; foreign counterpart of U.S. Patent No. 7,261,672 to which U.S. Appl. No. 12/754,170 claims priority, pp. 1-12.
Dreumont Thomas
Frank Andrew A.
Lewis Tisha
O'Banion John P.
The Regents of the University of California
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