Adaptive instrument display brightness control system

Details Adaptive instrument display brightness control system Adaptive instrument display brightness control system

1995-05-15

1996-09-10

Pascal, Robert

Electric lamp and discharge devices: systems

With radiant energy sensitive control means

Discharge control discharge device load controlled by the...

315150, 307 108, H05B 3700

Patent

active

055549128

ABSTRACT:
An adaptive instrument display brightness control system that automatically controls the instrument display brightness of a vehicle based on a vehicle operator's changes to the display brightness and particular ambient light conditions. An ambient light intensity sensor sends an ambient light intensity signal to a microprocessor which then selects a brightness look-up value from a look-up table based on the light intensity to illuminate the instrument display. If the vehicle operator adjusts the instrument display brightness, and the change to the brightness is within a learning range of the system, the microprocessor will set an adaptive timer to validate the change. After the timer has expired, the microprocessor will adjust the look-up value to a predetermined percent of the difference between the original look-up value and a new look-up value coinciding with the new illumination setting.

REFERENCES:
patent: 3539987 (1967-07-01), Greene
patent: 4029991 (1977-06-01), Schultz
patent: 4435648 (1984-03-01), Goode

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