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Automotive LED turn signal system

A technology of LED turn signal and turn signal, which is applied to vehicle parts, the use of semiconductor lamps, electrical components, etc., can solve the problems of high power, environmental protection and energy saving, etc., and achieve the effect of reducing power and optimizing circuit design.

Active Publication Date: 2019-10-08
GUANGZHOU FORDA SIGNAL
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The power consumed is relatively large, which does not meet the requirements of environmental protection and energy saving

Method used

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  • Automotive LED turn signal system
  • Automotive LED turn signal system
  • Automotive LED turn signal system

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings of the description.

[0015] The invention is designed based on the standard of ISO 13207-1 "Characteristics of Light-Emitting Diode Light Bulb Bulbs Used in Road Vehicles for Bulb Compatibility Fault Detection".

[0016] Such as figure 1 As shown, an automotive LED turn signal system includes a pulse timing detection module, a pulse current detection module, a trailer detection system module, an MCU, a turn signal load, a linear drive circuit for driving the turn signal load, and a power supply for the MCU. constant current circuit.

[0017] Such as figure 1 As shown, the trailer detection system module includes a resistor R30, a resistor R35, a resistor R28, a resistor R34 and a voltage regulator tube Z2, the resistor R30 is connected in parallel with the resistor R34 after being connected in series with the resistor R35, the voltage regulator tube Z2 is connected in ...

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Abstract

The invention discloses an automotive LED turn signal system, which comprises a pulse timing detection module, a pulse current detection module, a trailer detection system module, an MCU, a turn signal load, a linear driving circuit for driving the turn signal load and a constant current circuit for providing power for the MCU. When the turn signal is power-on, the MCU detection start ISO pulse timing port adopts analog-to-digital conversion, and the input voltage after passing through a relay is accurately detected; while the detected input voltage meets requirements, a current pulse output control end generates pulses meeting timing requirements according to specific pulse timing requirements; after analog-to-digital conversion voltage sampling for input voltage, based on sampled start trailer detection signals, the MCU U3 judges the magnitude of the input voltage, and thus, by using the MCU U3 analog-to-digital conversion function in a start or stop trailer detection system module,the working state of the turn signal LED can be accurately detected.

Description

technical field [0001] The invention relates to a car lamp, in particular to a car LED turn signal system. Background technique [0002] Traditional vehicle turn signals use halogen bulbs as light sources, and the working power of the bulbs is between 16 and 21W. However, if you want to replace traditional halogen lights with LED vehicle turn signals, you must solve two main problems: (1) LED The power of the turn signal should match and be compatible with the models of the traditional halogen lamp version, which is in line with the normal detection of the vehicle. Because to achieve the same brightness requirements, the power required for LED lighting is lower than that required for halogen lighting. For example, the working power of a halogen lamp is 21W. To achieve the same brightness, LED lighting only needs about 3W. Therefore, it is necessary to match the model of the halogen lamp version without incompatibility detection. In addition, a circuit that consumes power (...

Claims

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Application Information

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IPC IPC(8): H05B33/08B60Q1/34H05B44/00
CPCB60Q1/34H05B45/00Y02B20/30Y02B20/40
Inventor 刘信国
Owner GUANGZHOU FORDA SIGNAL
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