| US 7,530,923 B2 | ||
| Shift control apparatus for automatic transmission | ||
| Yoshiharu Saito, Wako (Japan); Tatsuyuki Ohashi, Wako (Japan); Koichi Hasegawa, Wako (Japan); and Yoshiyuki Kokubo, Wako (Japan) | ||
| Assigned to Honda Motor Co., Ltd., Tokyo (Japan) | ||
| Filed on Oct. 23, 2006, as Appl. No. 11/584,552. | ||
| Claims priority of application No. 2005-316419 (JP), filed on Oct. 31, 2005. | ||
| Prior Publication US 2007/0099752 A1, May 03, 2007 | ||
| Int. Cl. F16H 59/00 (2006.01) | ||
| U.S. Cl. 477—122 [477/34; 477/115; 701/52] | 5 Claims |
| 1. A shift control apparatus for an automatic transmission having an automatic shift mode for performing a shift operation
by using a first shift characteristic such that a gear position or gear ratio to be set is set according to a vehicle running
condition and a manual shift mode for performing a shift operation instructed by a manual operation by an operator, said shift
control apparatus comprising:
shift characteristic changing means for changing said first shift characteristic to a second shift characteristic such that
a region for outputting an upshift signal is displaced toward higher vehicle speeds after performing a downshift operation
by the manual operation by the operator;
delaying means for delaying the output of said upshift signal by a predetermined time period according to the vehicle running
condition when the vehicle running condition becomes a condition where said upshift signal is to be output according to said
second shift characteristic; and
upshift allowing means for once allowing the output of said upshift signal when the above condition where said upshift signal
is to be output according to said second shift characteristic continues after the elapse of said predetermined time period
determined by said delaying means.
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