SHIFT IMPLEMENTATION CONTROL SYSTEM AND METHOD FOR MECHANICAL TRANSMISSION SYSTEM

A control system (104) for at least partially automatically executing manually selected upshifts and downshifts of a mechanical transmission system (10) is provided. The control system includes a central processing unit (106) for receiving input signals indicative of transmission input shaft (16) an...

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Bibliographic Details
Main Author STEEBY; JON A
Format Patent
LanguageEnglish
Published 14.04.1992
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 system (104) for at least partially automatically executing manually selected upshifts and downshifts of a mechanical transmission system (10) is provided. The control system includes a central processing unit (106) for receiving input signals indicative of transmission input shaft (16) and output shaft (90) speeds and from a driver control console (108) and processing the same in accordance with predetermined logic rule to issue command output signals to a transmission actuator (112, 70, 96) to implement the selected shifts. The processing unit logic rules include rules for sensing conditions indicative of non-torque lock at an engaged jaw clutch and for issuing commands to disengage an engaged jaw clutch only if non-torque lock conditions are sensed.
Bibliography:Application Number: US19890383685