Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Transmission control
Reexamination Certificate
1999-04-16
2001-06-26
Cuchlinski, Jr., William A. (Department: 3661)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Transmission control
C701S051000, C701S056000, C701S059000
Reexamination Certificate
active
06253139
ABSTRACT:
The present description concerns a system for controlling the gear changes in a motor vehicle having an internal combustion engine with a manually controlled, servo-assisted discrete ratio gear mechanism and an automatic clutch, controlled by first and, respectively, second actuator means under electrical control.
Motor vehicles have been developed relatively recently which have discrete ratio gears (like conventional gears) with servo-assisted manual control. In these motor vehicles, changing gear is controlled manually by the driver who operates members suitable for this purpose such as a lever or push button or similar in association with which are sensors that provide a control unit with information on the gear change or ratio that the driver intends to effect. The control unit then drives suitable electrically controlled actuators associated with the gears to select the desired gear ratio. In some systems, engaging and releasing the clutch which controls the coupling of the engine to the transmission is automatically controlled by the unit controlling the servo-assisted gears, and the conventional pedal for controlling the gear is eliminated.
The object of the present invention is to provide a system for controlling gear changes in a motor vehicle provided with discrete ratio gears under servo-assisted manual control and an associated automatic clutch, which system enables the gear changes to be controlled completely automatically and in a personalised manner based on the driving habits of a particular user.
This and other objects are achieved according to the invention with a system the essential characteristics of which are defined in the accompanying claim
1
.
Other specific characteristics of the system according to the invention are defined in the dependent claims.
REFERENCES:
patent: 5396420 (1995-03-01), Graf
Borodani Pandeli
Gianoglio Renato
Giuliano Fulvio
Lupo Massimo
C.R.F. Societa Corsortile per Azioni
Cuchlinski Jr. William A.
Donnelly Arthur D.
Sughrue Mion Zinn Macpeak & Seas, PLLC
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