Lighting device

A lighting device which can produce various fade operations without significantly consuming memory capacity is provided. Duty ratios for a plurality of steps are recorded in a ROM of a slave ECU. The slave ECU sets an interval time for 1 step, reads out from a map brightness of a next step at each s...

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Bibliographische Detailangaben
1. Verfasser:	Ohashi, Tomonori
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING ORSUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES INGENERAL CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY PERFORMING OPERATIONS ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT TRANSPORTING VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	A lighting device which can produce various fade operations without significantly consuming memory capacity is provided. Duty ratios for a plurality of steps are recorded in a ROM of a slave ECU. The slave ECU sets an interval time for 1 step, reads out from a map brightness of a next step at each set interval time, and outputs a pulse with the read out duty ratio to a LED. A change duty ratio, a pre-change interval time and a post-change interval time are recorded in the ROM. The slave ECU sets the interval time for 1 step to the pre-change interval time before the duty ratio of the LED reaches to the change duty ratio, and changes the setting by setting the interval time for 1 step to the post-change interval time after the duty ratio of the LED has reached to the change duty ratio.