Switch-selectable transmission control with safety mechanism for

Details Switch-selectable transmission control with safety mechanism for Switch-selectable transmission control with safety mechanism for

1983-09-13

1987-03-17

Braun, Leslie

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

74335, B60K 4118

Patent

active

046497757

ABSTRACT:
A switch-selectable transmission control with a safety mechanism that changes gear ratios by automatically actuating gearshift solenoid valves according to the signal from a gear-selection switch is provided to a vehicle whose transmission is controlled from a finger-touch switchboard. With a vehicle speed limit preset for each gear, the transmission control allows a gearshift if the vehicle speed is within the preset limit, while it forcibly maintains the transmission in neutral, whichever gear is selected, when the vehicle speed is outside the preset limit. By so doing, the transmission control prevents hazardous gearshifts.

REFERENCES:
patent: 3420328 (1969-01-01), Johnson et al.
patent: 3703109 (1972-01-01), Irie et al.
patent: 4015488 (1977-04-01), Akeson et al.
patent: 4274306 (1981-06-01), Yokoi et al.
patent: 4350057 (1982-09-01), Kishi et al.
patent: 4411174 (1983-10-01), Yokoi et al.
patent: 4467427 (1984-08-01), Magnusson
patent: 4517646 (1985-05-01), Magnusson et al.

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