Method for controlling and activating indicators on a vehicle dashboard, comprises microprocessor which receives multiplexed sensor signals and multiplexes groups of indicators in matrix array

A microprocessor (30) supplied from the vehicle voltage (Va) receives multiplexed signals (40) which indicate the state of a group of vehicle sensors. Dashboard indicators such as electroluminescent diodes are arranged as four lines of a matrix controlled by vehicle voltage switches (11-14) and eart...

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Bibliographische Detailangaben
1. Verfasser:	DENISE SYLVAIN
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDEDFOR ELSEWHERE CHECKING-DEVICES GENERATING RANDOM NUMBERS PHYSICS REGISTERING OR INDICATING THE WORKING OF MACHINES TIME OR ATTENDANCE REGISTERS VOTING OR LOTTERY APPARATUS
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Beschreibung
Zusammenfassung:	A microprocessor (30) supplied from the vehicle voltage (Va) receives multiplexed signals (40) which indicate the state of a group of vehicle sensors. Dashboard indicators such as electroluminescent diodes are arranged as four lines of a matrix controlled by vehicle voltage switches (11-14) and earth switches (31-38). Both groups of switches are operated by microcomputer multiplex signal to activate groups of indicators Le procédé de commande et d'activation d'indicateurs (121, 122, 221) de tableau de bord de véhicule consiste à répartir les indicateurs en x groupes (1, 2, 3, 4) d'indicateurs (121, 122; 221) et à effectuer un multiplexage temporel des groupes (1, 2, 3, 4), en déterminant une valeur effective d'excitation instantanée des indicateurs (121, 122, 221) et en régulant un facteur de forme de commande et d'activation multiplexée des indicateurs (121, 122, 221) en fonction de l'écart entre la valeur d'excitation effective et une valeur de consigne.