Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – With indicator or control of power plant
Reexamination Certificate
2005-04-19
2005-04-19
Vo, Hieu T. (Department: 3747)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
With indicator or control of power plant
C701S051000, C477S118000, C477S120000
Reexamination Certificate
active
06882925
ABSTRACT:
A gear stage detection device according to the present invention comprises output shaft side pulse generating mechanism (21) for generating a pulse in a number which corresponds to a rotary phase of an output shaft (9) of a transmission (T/M), input shaft side pulse generating mechanism (20) for generating a pulse in a number which corresponds to a rotary phase of an input shaft (8) of the transmission (T/M), and gear stage determining mechanism (16) for determining the current gear stage by inputting the output shaft side pulse and input shaft side pulse generated respectively by the pulse generating mechanism, counting the number of input shaft side pulses generated when a unitary number (25 pls) of output shaft side pulses has been reached, and comparing the counted input shaft side pulse number with the unitary number of input shaft side pulses which is predetermined for each gear stage of the transmission.
REFERENCES:
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patent: 5674151 (1997-10-01), de Schepper et al.
patent: 5855532 (1999-01-01), Sugiyama
patent: 6102830 (2000-08-01), Tsutsui et al.
patent: 6463375 (2002-10-01), Matsubara et al.
patent: 04-171353 (1992-06-01), None
Kobayashi Kazuhiko
Nohara Yasuhiro
Shinojima Takumi
Isuzu Motors Limited
McCormick. Paulding & Huber LLP
Transtron Inc.
Vo Hieu T.
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