Electronic range indicator for a motor vehicle

Details Electronic range indicator for a motor vehicle Electronic range indicator for a motor vehicle

1989-02-06

1989-11-21

Orsino, Joseph A.

Communications: electrical

Land vehicle alarms or indicators

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

74866, 116 281, 200 6188, 340438, B60Q 100

Patent

active

048825727

ABSTRACT:
An electronic range indicator apparatus in which a switch array powered by the vehicle ignition voltage is used to indicate the selected transmission range during both on and off periods of the vehicle. During on periods of the vehicle, the ignition voltage is transmitted through the closed contacts (if any) of the switch array, and an electronic control module decodes the output of the switch array and lights the indicator indicia corresponding to the selected range. During off periods of the vehicle, the ignition feed to the switch array is open circuited. In such case, the control module intermittently reverses the potential across the switch array, and lights the appropriate indicator indicia using a reverse logic decode scheme.

REFERENCES:
patent: 4037196 (1977-07-01), Atkinson et al.
patent: 4100530 (1978-07-01), den Brinker et al.
patent: 4155068 (1979-05-01), Zajichek
patent: 4199747 (1980-04-01), Miller et al.
patent: 4498359 (1985-02-01), Hara
patent: 4610179 (1986-09-01), Parker

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