Control method of shifting gear in an automatic manual transmission with twin clutch

A control method of shifting gear in an automatic manual transmission (6) having a twin-clutch gearbox (7) to pass from a current gear (A) to a successive gear (B); the control method provides the steps of: receiving a command of gear shifting; opening a first clutch (16A) associated with current ge...

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Bibliographic Details
Main Authors MONTOSI, DAVIDE, MARCIGLIANO, FRANCESCO
Format Patent
LanguageEnglish
French
German
Published 27.04.2011
Subjects
BLASTING
ENGINEERING ELEMENTS AND UNITS
GEARING
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
THERMAL INSULATION IN GENERAL
WEAPONS
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Summary:A control method of shifting gear in an automatic manual transmission (6) having a twin-clutch gearbox (7) to pass from a current gear (A) to a successive gear (B); the control method provides the steps of: receiving a command of gear shifting; opening a first clutch (16A) associated with current gear (A); closing a second clutch (16B) which is associated with successive gear (B) and starts transmitting a torque after a delay time interval (TR) from the start of the closing; and starting the opening of first clutch (16A), thus decreasing the torque transmitted by first clutch (16A) itself before second clutch (16B) starts transmitting a torque, such that first clutch (16A) decreases the torque transmitted to the driving wheels (3) before the second clutch (16B) starts transmitting a torque to the driving wheels (3).
Bibliography:Application Number: EP20100159071