Interrelated power delivery controls – including engine control – Transmission control – Engine controlled by transmission
Reexamination Certificate
2005-11-01
2005-11-01
Marmor, Charles A (Department: 3681)
Interrelated power delivery controls, including engine control
Transmission control
Engine controlled by transmission
C477S110000, C477S111000, C477S044000, C477S045000, C477S046000, C477S048000, C477S906000
Reexamination Certificate
active
06960153
ABSTRACT:
A clutch engagement control device controls the engagement of a forward clutch (32) and reverse clutch (33) in an automatic transmission connected to an engine (70) in a vehicle. An inhibitor switch (56) outputs a range signal in accordance with a position range of a select lever (51). A manual valve (57) supplies oil pressure selectively to one of the forward clutch (32) and the reverse clutch (33) by changing position in accordance with the position range of the select lever (51). A controller (60) of the clutch engagement control device determines whether an unmatching range condition occurs in which the range of the select lever (51) indicated by the range signal and the range of the manual valve (57) do not match, when the range of the select lever (51) indicated by the range signal is a drive range or reverse range; and suppress an increase in engine rotation speed prior to engagement of the forward clutch or reverse clutch when the unmatching range condition occurs.
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Doihara Katsumi
Hagiwara Yoshichika
Kimura Yusuke
Ochiai Tatsuo
Okahara Hirofumi
Jatco Ltd
Le David D.
Marmor Charles A
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