Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Transmission control
Reexamination Certificate
2011-04-12
2011-04-12
Hellner, Mark (Department: 3663)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Transmission control
C701S052000, C701S053000, C701S067000, C701S068000, C477S034000, C477S143000, C477S156000, C477S159000, C477S154000, C475S123000, C475S125000, C475S127000, C475S129000, C475S120000
Reexamination Certificate
active
07925407
ABSTRACT:
The adjustment method includes an estimation step in which valve characteristics of the linear solenoid valves fitted to the hydraulic control circuit are measured, and estimated linear valve characteristics of the linear solenoid valves in isolation state are estimated based on the measured valve characteristics using predetermined correlations; and a correction value output step in which estimated linear piston-end pressures of the hydraulically-driven friction engagement elements immediately before the hydraulically-driven friction engagement elements are engaged are calculated based on the estimated linear valve characteristics, and the correction values that are applied to the control command values to adjust the drive currents supplied from the valve control unit to the linear solenoid valves are calculated based on differences between the estimated linear piston-end pressures and nominal piston-end pressures, and then output.
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Japanese Office Action dated Aug. 11, 2008.
Kawakami Takayuki
Kondo Masami
Moriya Naoto
Tanaka Masaharu
Finnegan Henderson Farabow Garrett & Dunner LLP
Hellner Mark
Mawari Redhwan
Toyota Jidosha & Kabushiki Kaisha
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