Shift-to-neutral reminder prompt system/method

Details Shift-to-neutral reminder prompt system/method Shift-to-neutral reminder prompt system/method

1993-09-07

1995-07-25

Teska, Kevin J.

Boots, shoes, and leggings

36442401, 477120, 477904, 477124, 477122, 74335, 74336R, B60K 2000

Patent

active

054368332

ABSTRACT:
A control system (104)/method for semi-automatically executing automatically and 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 rules to issue command output signals to a transmission actuator (112, 70, 96) to implement the selected shifts. The control is effective to initiate a shift by automatically preselecting a shift from the currently ratio into neutral and to then await a manually caused torque break of the transmission to complete the shift to neutral. The control is effective to minimize wear by issuing repetitive shift prompts if transmission neutral is not sensed within predetermined times from preselection of a shift frown a currently engaged ratio (GR) into neutral(N).

REFERENCES:
patent: 5050079 (1991-09-01), Steeby
patent: 5053959 (1991-10-01), Genise
patent: 5053961 (1991-10-01), Genise
patent: 5053962 (1991-10-01), Genise
patent: 5063511 (1991-11-01), Mack et al.
patent: 5089962 (1992-02-01), Steeby
patent: 5089965 (1992-02-01), Braun
patent: 5105357 (1992-04-01), Steeby
patent: 5315514 (1994-05-01), Steedy et al.

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