Shift implementation control system and method for mechanical tr

Details Shift implementation control system and method for mechanical tr Shift implementation control system and method for mechanical tr

1989-07-24

1992-04-14

Cangialosi, Salvatore

Boots, shoes, and leggings

74866, B60K 4110

Patent

active

051053578

ABSTRACT:
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 transmisison 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.

REFERENCES:
patent: 4527447 (1985-07-01), Richards
patent: 4551802 (1985-11-01), Smyth
patent: 4648290 (1987-03-01), Dunkley et al.
patent: 4698763 (1987-10-01), Smyth
patent: 4849899 (1989-07-01), Cote et al.

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