LED steering lamp control circuit and control method thereof

A technology of LED turn signal and control circuit, applied in optical signal, signal device, transportation and packaging, etc., can solve the problems of change, high cost, unfavorable vehicle cost, etc., and achieves less misjudgment, low cost and accurate judgment result. Effect

Active Publication Date: 2015-07-01
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present in this patented technology helps prevent damage from overexposing or improving efficiency when controlling light emitting diodes (LEDs). It uses two different circuits that detect if there are any problems affecting its performance. This makes sure they don't be mistaken for bad things like being hit on walls during construction work.

Problems solved by technology

The technical problem addressed by this patented method is how low-cost solutions can be developed into effective ways to identify if there's any damage or malfunctions affecting light signal systems (LED lights) when they become part of their overall design.

Method used

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  • LED steering lamp control circuit and control method thereof
  • LED steering lamp control circuit and control method thereof

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Embodiment Construction

[0011] Combine below Figure 1 to Figure 2 , the present invention is described in further detail.

[0012] refer to figure 1 , a LED turn signal control circuit, including a body controller 10, the body controller 10 receives the switch signal of the left turn signal switch 21 and the right turn signal switch 22 and drives the left turn signal light 31 and the right turn light switch 32 On or off, a detection circuit 40 is provided between the left turn signal lamp 31 and the right turn signal lamp 32 and the body controller 10, and the detection circuit 40 outputs a feedback signal to the body controller 10 according to the voltage change of the left turn signal lamp 31 or the right turn signal lamp 32 , the vehicle body controller 10 judges whether the left and right turn signal lamps 31 and 32 are damaged according to the feedback signal and the opening and closing signals of the left and right turn signal lamp switches 21 and 22 . Whether the lamp is damaged can be judged

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Abstract

The invention belongs to the field of automobile electronics, and particularly relates to an LED steering lamp control circuit. The LED steering lamp control circuit comprises an automobile body controller, wherein the automobile body controller receives opening and closing signals of a left steering lamp switch and a right steering lamp switch and drives turning on or off of a left steering lamp and a right steering lamp, a detection circuit is arranged among the left steering lamp, the right steering lamp and the automobile body controller and outputs feedback signals to the automobile body controller according to voltage changes of the left steering lamp or the right steering lamp, and the automobile body controller judges whether the left and right steering lamps are damaged or not according to feedback signals and the opening and closing signals of the left and right steering lamp switches. The invention further discloses a control method of the circuit. The detection circuit is additionally arranged to judge whether the LED steering lamps are damaged to not and low in cost. Judgment is based on changes of voltage, wrong judgment is not prone to being made, and the judgment result is quite accurate.

Description

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Claims

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Application Information

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Owner CHERY AUTOMOBILE CO LTD
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