Semi-automatic mechanical transmission control display and fault

Details Semi-automatic mechanical transmission control display and fault Semi-automatic mechanical transmission control display and fault

1988-05-02

1989-12-19

Orsino, Joseph A.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340456, 340462, 74DIG7, B60Q 900

Patent

active

048885770

ABSTRACT:
A transmission system (10) including a control display (2, 302) is provided. The control display comprised of three sections, a currently engaged gear ratio section (2'") a maximum permissible consecutive upshift indicating section (2') and a maximum permissible consecutive downshift indicating section (2"). The central processing unit (38) includes circuitry and logic rules to process input signals to determine the currently permissible gear ratios and will indicate said gear ratios, in the form of maximum permissible upshifts and downshifts, at said display. The central processing unit also includes circuitry and logic rules to sense the existence of a fault condition, to assign a predetermined code ("18") thereto and to issue command output signals to the display to cause the second and third sections to assume a fault condition indicating display and to cause said first section to display to assigned code.

REFERENCES:
patent: 3626367 (1971-12-01), Howard et al.
patent: 4356470 (1982-10-01), Kogawa et al.
patent: 4648290 (1987-03-01), Dunkley et al.
P. M. Glover, "Car System Monitor", pp. 200-201, Practical Electronics, Nov. 1977 (G.B.).

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