Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Transmission control
Reexamination Certificate
2011-06-28
2011-06-28
Hellner, Mark (Department: 3663)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Transmission control
C701S058000, C074S335000
Reexamination Certificate
active
07970522
ABSTRACT:
A work machine gear shifting control system provides gear shifting conditions for an automatic gear shifting mode in accordance with work site conditions. An area62of a display device49displays a permissible velocity setting range and setup operation guidance, and another area64shows guidance to indicate whether the setting is acceptable or unacceptable. When the traveling velocity falls within the permissible velocity setting range, the displayed guidance changes to indicate that the setting is acceptable. When, in this instance, an operator presses a setup switch23with desired timing, a transmission gear shifting control section45acquires the prevailing vehicle velocity and velocity ratio (or vehicle velocity), and stores adjustment values in an adjustment value storage section43so that the vehicle velocity and velocity ratio become the gear shifting control threshold values for normal gear shifting control (steps S535to S545).
REFERENCES:
patent: 4977797 (1990-12-01), Aoki et al.
patent: 5459658 (1995-10-01), Morey et al.
patent: 6131062 (2000-10-01), Nielsen
patent: 6292729 (2001-09-01), Falck et al.
patent: 6328674 (2001-12-01), Matsue et al.
patent: 6681551 (2004-01-01), Sheidler et al.
patent: 59-097351 (1984-06-01), None
patent: 1-188760 (1989-07-01), None
patent: 06-050418 (1994-02-01), None
patent: 7-208594 (1995-08-01), None
patent: 09-303538 (1997-11-01), None
patent: 10-061758 (1998-03-01), None
patent: 10-175461 (1998-06-01), None
Kowatari Youichi
Nakamura Kazunori
Tsukada Hidenobu
Yoshikawa Masaki
Hellner Mark
Hitachi Construction Machinery Co. Ltd.
Mattingly & Malur, PC
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