Gear shift indication method and apparatus

Details Gear shift indication method and apparatus Gear shift indication method and apparatus

2006-01-28

2008-11-04

Zanelli, Michael J. (Department: 3661)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Transmission control

C340S439000, C340S441000

Reexamination Certificate

active

07447584

ABSTRACT:
A method and apparatus for communicating an optimal gear shift time is disclosed. The apparatus includes an input circuit that obtains a plurality RPM readings over a selected interval of time, a processing module that determines an RPM acceleration based upon the plurality of RPM readings, the processing module also determines an appropriate shift time based upon the RPM acceleration and estimated shift reaction time, and a shift indicator that communicates the appropriate shift time. In certain embodiments, the appropriate shift time includes shifting within a range of maximum engine power. In some embodiments, the shift indicator comprises a shift indicator light or an audible signal generator.

REFERENCES:
patent: 4174766 (1979-11-01), Kalogerson
patent: 4683455 (1987-07-01), Kido et al.
patent: 6137399 (2000-10-01), Westberg et al.
patent: 6567735 (2003-05-01), Bortfeld et al.
patent: 7145324 (2006-12-01), Masters et al.
patent: 2004/0093129 (2004-05-01), Majstorovic et al.

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