WO2011155802A2 - Module de commande simultanée pour phares à del gauche/droite d'une automobile permettant d'obtenir une luminance identique des phares à del gauche/droite - Google Patents

Module de commande simultanée pour phares à del gauche/droite d'une automobile permettant d'obtenir une luminance identique des phares à del gauche/droite Download PDF

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Publication number
WO2011155802A2
WO2011155802A2 PCT/KR2011/004292 KR2011004292W WO2011155802A2 WO 2011155802 A2 WO2011155802 A2 WO 2011155802A2 KR 2011004292 W KR2011004292 W KR 2011004292W WO 2011155802 A2 WO2011155802 A2 WO 2011155802A2
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WIPO (PCT)
Prior art keywords
led
output
right led
driving
reference voltage
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PCT/KR2011/004292
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English (en)
Korean (ko)
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WO2011155802A3 (fr
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조재명
권미화
오영하
한솔
조혜민
조용민
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제이엠씨엔지니어링 주식회사
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Publication of WO2011155802A2 publication Critical patent/WO2011155802A2/fr
Publication of WO2011155802A3 publication Critical patent/WO2011155802A3/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/2696—Mounting of devices using LEDs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/14—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
    • B60Q1/1407—General lighting circuits comprising dimming circuits

Definitions

  • the present invention controls the same pulses of the left and right LED headlights that can maintain the same brightness of the left and right LED headlights without controlling the constant voltage and constant current by controlling the PWM pulse width until the microcomputer determines the low battery. It relates to a headlight simultaneous control module.
  • the headlamps are installed at both sides along the vehicle width in front of the vehicle to receive the driver's vision when driving at night by receiving electricity through a wire connected to the battery of the vehicle.
  • head lamps and rear combination lamps use bulbs as light sources, but bulbs have a short lifespan and low impact resistance. Therefore, in recent years, high brightness LEDs having long lifespan and high impact resistance are used as light sources. Is in the trend.
  • LED headlights have a large amount of heat loss, so the efficient management of this thermal energy has become a core technology of LED headlights.
  • the heat dissipation mechanism of general automotive LED headlights includes LED headlights that act as light sources as headlights, and heat sinks for dissipating heat that is lost in the process of converting electrical energy into light energy in large areas, and heat existing in heat sinks.
  • a heat dissipation fan is provided to release energy by forced convection to lower the temperature of the heat dissipation plate 20 to extend stable energy conversion and life of the LED headlamp.
  • the LED headlamp includes a reflector reflecting a beam emitted from the LED headlamp and a lens for irradiating the beam reflected from the reflector forward.
  • the present invention can be driven without a relay element can reduce the volume of the left and right LED headlight control module itself to 70% or more than the conventional, and the car left and right LED headlight brightness to the external weather and driving position It can be selectively emitted in three stages, and it can measure the current flowing in the left and right LED headlights of automobiles arranged in parallel, and control the PWM pulse width until the microcomputer determines that it is a low battery. It is an object of the present invention to provide a vehicle left and right LED headlight simultaneous control module that controls the same brightness of the left and right LED headlights that can maintain the same brightness of the left and right LED headlights without using.
  • the present invention is connected to one side of the vehicle ECU, connected to one side of the left and right LED headlights of the car, and senses the output current output through the parallel LED modules arranged in plural in parallel. It is achieved by including a vehicle left and right LED headlight simultaneous control module 200 for switching the input current flowing into the type LED module according to the reference voltage for driving the LED module to maintain the same brightness of the left and right LED headlights.
  • the present invention can be driven without a relay element can reduce the volume of the vehicle's left and right LED headlight control module itself to 70% or more compared to the existing, and the brightness of the car's left and right LED headlights according to the external weather and driving position It can emit light selectively in 3 stages, and can measure the current flowing in the left and right LED headlights of cars arranged in parallel, and use the constant voltage and constant current components by controlling the PWM pulse width until the microcomputer determines that it is a low battery.
  • the brightness of the left and right LED headlights of the car can be kept the same, and the electric energy consumption rate of the car can be improved to 90% or more.
  • FIG. 1 is a block diagram showing a vehicle left and right LED headlight simultaneous control module for controlling the same brightness of the left and right LED headlight according to the present invention
  • FIG. 2 is a block diagram showing the components of the vehicle left and right LED headlight simultaneous control module for controlling the same brightness of the left and right LED headlights according to the present invention
  • Figure 3 is a circuit diagram showing the components of the vehicle left and right LED headlight simultaneous control module for controlling the same brightness of the left and right LED headlight according to the present invention.
  • Car ECU and the left and right LED headlight control module 100 described in the present invention is the transmission (TX) and the reception (RX) through the can protocol method of can communication.
  • the vehicle left and right LED headlight simultaneous control module 200 can be used in addition to the LED left and right car headlights, LED street light, LED indoor light, LED condensing light for medical devices.
  • LED headlight simultaneous control module 200 is configured to include.
  • the vehicle left and right LED headlight simultaneous control module 200 includes a reference voltage setting unit 210, a first comparator 220, a second comparator 230, a microcomputer unit 240, a left LED headlamp smoothing module 250, It consists of a smoothing module 260 for the right LED headlamp.
  • the reference voltage setting unit 210 is connected to one side of the reference voltage input terminal (VCC) of the microcomputer unit, and serves to set the reference voltage for driving the left and right LED headlamps, which is a regulator U2 and an output terminal of the regulator U2 and the microcomputer.
  • the first reference voltage setting unit, the second reference voltage setting unit, and the third reference voltage setting unit are configured between the negative VCC terminals.
  • the first reference voltage setting unit lowers the voltage by 30% compared to the base LED module driving reference voltage value (4.0V) of the left and right LED headlamps of the vehicle at night, and the brightness of the left and right LED headlamps is 1.3 compared to the reference value (500Lux).
  • the first luminance driving reference voltage is set to be output to the reference input terminals of the first comparator and the second comparator.
  • the voltage drop 30% lower than the reference voltage value (4.0V) for driving the base LED module of the left and right LED headlights of the vehicle is based on the steering angle input from the steering sensor by the internal operation of the microcomputer part during the curve driving at night highway.
  • the first luminance driving reference voltage (5.2V) is set so that 650Lux, which is 1.3 times higher than the reference value 500Lux, is turned on.
  • the resistor R7, the resistor R8, and the capacitor C5 are integrated and input to the input terminal 1 of the first quad analog switch, and the first quad analog switch Quad is provided from the microcomputer unit.
  • the selection signal LED_D1 is input to the control input terminal 13 of the analog switch
  • the reference voltage value for driving the base LED module (5) is integrated through the integrated values of the resistors R7, R8, and capacitor C5 input from the input terminal 1.
  • the first luminance driving reference voltage is output to the reference input terminals of the first comparator and the second comparator such that the brightness of the left and right LED headlamps of the vehicle is 1.3 times higher than the reference value (500Lux).
  • the second reference voltage setting unit drops 60% of the base LED module driving reference voltage value (4.0V) of the left and right LED headlamps when the heavy rain falls during the straight driving of the night highway, so that the brightness of the left and right LED headlamps is the reference value (
  • the second luminance driving reference voltage is set to be output to the reference input terminals of the first comparator and the second comparator to be 1.6 times that of 500Lux).
  • the voltage drop of 60% from the base LED module driving reference voltage value (4.0V) of the vehicle left and right LED headlights is a pressure sensor installed at one side of the vehicle by the internal operation of the microcomputer unit when heavy rain falls during the straight driving of the night highway.
  • the second luminance driving reference voltage (6.4V) is set so that the brightness of the left and right LED headlamps of the vehicle is 1.6 times higher than the reference value (500 Lux).
  • the resistor R7, the resistor R12, and the capacitor C6 are integrated and input to the input terminal 11 of the second quad analog switch, and the second quad analog switch Quad is provided from the microcomputer unit.
  • the selection signal LED_D2 is input to the control input terminal 12 of the analog switch
  • the reference voltage value for driving the base LED module (1) is integrated through the integrated values of the resistors R7, R12, and capacitor C6 input from the input terminal 11.
  • the second luminance driving reference voltage is output to the reference input terminals of the first comparator and the second comparator such that the brightness of the left and right LED headlamps of the vehicle is 1.6 times higher than the reference value (500Lux) by dropping the voltage by 60%.
  • the third reference voltage setting unit drops 90% from the base LED module driving reference voltage value (4.0V) of the left and right LED headlamps when the heavy snow falls during the straight driving of the night highway, so that the brightness of the left and right LED headlamps of the vehicle is the reference value (
  • the third luminance driving reference voltage is set to be output to the reference input terminals of the first comparator and the second comparator so as to be 1.9 times that of 500 Lux).
  • the voltage drop of 90% from the base LED module driving reference voltage value (4.0V) of the vehicle's left and right LED headlights is a temperature sensor installed at one side of the vehicle by the internal operation of the microcomputer unit when heavy snow falls during the linear driving of the night highway.
  • the third luminance driving reference voltage (7.6V) is set so that 950Lux, which is 1.9 times higher than the reference value (500Lux) of the left and right LED headlights of the vehicle, lights up according to the temperature input from the pressure sensor and the heavy snow pressure. .
  • the resistor R7, the resistor R14, and the capacitor C8 are integrated and input to the input terminal 4 of the third quad analog switch, and the third quad analog switch Quad is provided from the micom unit.
  • the selection signal LED_D3 is input to the control input terminal 5 of the analog switch
  • the reference voltage value for driving the base LED module (5) is integrated through the integrated values of the resistors R7, R14, and capacitor C8 input from the input terminal 4.
  • the third luminance driving reference voltage is output to the reference input terminals of the first comparator and the second comparator such that the brightness of the left and right LED headlamps of the vehicle is 1.9 times higher than the reference value (500Lux) by dropping the voltage by 90%.
  • the first comparator 220 senses a first output current output through a parallel LED module of a left LED headlamp, and sets the sensed first output current data from the reference voltage setting unit to a left LED headlamp driving reference voltage value. After comparing with, the output data is input to the microcomputer unit.
  • the output terminal is input.
  • the output data processed by the comparison operation is input to the input terminal 1.0 of the microcomputer unit.
  • the second comparator 230 senses a second output current output through the parallel LED module of the right LED headlamp, and sets the sensed second output current data from the reference voltage setting unit. After comparing with, the output data is input to the microcomputer unit.
  • the output terminal is input.
  • the output data processed by the comparison operation is input to the input terminal 1.1 of the microcomputer unit.
  • the microcomputer unit 240 is connected to one side of the vehicle ECU, receives the left and right LED headlight driving signals from the car ECU, and receives sensing data regarding the first and second output currents output through the parallel LED module of the left and right LED headlights. It transmits to the vehicle ECU, and controls the PWM pulse width according to the comparison value output through the comparison of the first and second comparators to maintain the same brightness of the left and right LED headlights of the car.
  • the AT89C2051 is a low-voltage, high-performance COMS 8-bit microcomputer with RAM memory and EEPROM inside, compatible with MCS-51 products, and built-in 1Kbyte Flash Memory (Continuity: 1,000 Write / Erase Ctcles). It has an operating range of 2.7V to 6V, and static operation operates from 0Hz to 24MHz, has two levels of program memory lock, 64Bytes of SRAM, and 15 programmable I / O lines.
  • Has a 16bit Timer / Counter has 3 interrupt sources, can directly output LED drive (10mA or more), has a one-chip analog comparator, has low power idle mode and power down mode, 2 Sixteen 16-bit Timer / Counters, six interleaved sources, programmable serial UART Channels: RX, TX, 2K Bytes Flash Memory And an internal RAM of 128 x 8 Bits.
  • the microcomputer unit 240 has one side of the RXD receiving terminal connected to the transmission terminal of the car ECU, receives the left and right LED headlight driving signals from the car ECU, and one side of the receiving terminal of the car ECU to the TXD transmission terminal Connects and sends sensing data about the first and second output currents passing through the first and second parallel LED modules to the automotive ECU, and the output terminal of the regulator is connected to one side of the VCC terminal (reference voltage input terminal) to supply the automotive battery power. Is applied, and the output terminal of the first comparator is connected to the input terminal P1.0, and the output data of the comparative operation is input through the first comparator, and the output terminal of the second comparator is connected to the input terminal P1.1.
  • the comparator output data is input through the comparator.
  • the resistor R3 is connected to the output terminal P1.2, and the PWM pulse width corresponding to the comparator output data is compared through the first comparator. It flows into the turn-on driving current of the second switching unit of the left LED headlamp smoothing module 250, and a resistor R11 is connected to the output terminal P1.3, and the PWM pulse width corresponding to the comparatively processed output data is obtained through the second comparator.
  • a control input terminal 13 of the first quad analog switch of the first reference voltage setting unit flows to the turn-on driving current of the fourth switching unit of the right LED headlamp smoothing module 260.
  • the left LED headlight smoothing module 250 is turned on according to the left LED headlight driving PWM output signal PWM_L of the microcomputer part, and the LED module for the left LED headlight of the car battery is arranged as a plurality of LED headlights in parallel. And a sensing voltage related to the first output current output through the parallel LED module to the first comparator.
  • the first sensing resistor 251 is connected to one side of the output terminal of the car battery, and serves to measure the current output from the car battery to the left LED headlamp of the car battery.
  • the first switching unit 252 is connected to one side of the output terminal of the microcomputer unit, and is turned on according to the output signal of the microcomputer unit to serve to turn on the driving current to the second switching unit.
  • the output signal of the microcomputer unit is applied to the base terminal through the resistor R3, the GND terminal is connected to the emitter terminal, and is connected to the base terminal of the second switching unit through the resistor R2 to the collector terminal.
  • the second switching unit 253 is connected to the first switching unit and the base terminal, and receives a plurality of reference voltage values for driving the left LED headlights of the automobile battery in the standby state by receiving the turn-on driving current from the first switching unit. It serves to apply to the LED module listed.
  • the turn-on driving current of the second switching unit is applied to the base terminal through the collector terminal of the first switching unit, the voltage of the car battery is applied to the emitter terminal in the standby state, and a plurality of parallel to the collector terminal.
  • the first parallel LED module 254 is arranged in parallel to one side of the collector terminal of the second switching unit, and serves to emit light brightly around by receiving a reference voltage value for driving the left LED headlight of the car battery.
  • the N LEDs are connected in parallel, and the collector terminal of the second switching unit is connected to the input side, and the second sensing resistor is connected to the output side.
  • the second sensing resistor 255 senses a first output current output through the first parallel LED module at one output side of the first parallel LED module, and then inputs the sensed data of the first comparator (-). It delivers to the terminal.
  • the second sensing resistor 255 is configured by connecting a resistor R5 and a capacitor C3 to one side.
  • the right LED headlamp smoothing module 260 is turned on according to the right side LED headlight driving PWM output signal PWM_L of the microcomputer part to drive the LED module for the right LED headlamp of a car battery as the right LED headlamp LED module listed in plural in parallel. And a sensing voltage related to the second output current output through the parallel LED module to the second comparator.
  • the third sensing resistor 261 is connected to one side of the output terminal of the car battery, and serves to measure the current output from the car battery to the LED headlamp of the car.
  • the third switching unit 262 is connected to one side of the output terminal of the microcomputer unit, and is turned on according to the output signal of the microcomputer unit to serve to turn on the driving current to the fourth switching unit.
  • the output signal of the microcomputer unit is applied to the base terminal through the resistor R11, the GND terminal is connected to the emitter terminal, and is connected to the base terminal of the fourth switching unit through the resistor R10 to the collector terminal.
  • the fourth switching unit 263 is connected to the third switching unit and the base terminal, and receives a plurality of reference voltage values for driving the right LED headlights of the vehicle battery in the standby state by receiving the turn-on driving current from the third switching unit. It serves to apply to the LED module listed.
  • the turn-on driving current of the fourth switching unit is applied to the base terminal through the collector terminal of the third switching unit, the voltage of the car battery is applied to the emitter terminal in the standby state, and a plurality of parallel to the collector terminal
  • the second parallel LED module 264 is arranged in parallel to one side of the collector terminal of the third switching unit, and serves to emit light brightly around by receiving a reference voltage value for driving the right LED headlight of the vehicle battery.
  • the fourth sensing resistor 265 senses a second output current output through the second parallel LED module at one output side of the second parallel LED module, and then inputs the sensed data of the second comparator (-). It delivers to the terminal.
  • the fourth sensing resistor 265 is configured by connecting a resistor R15 and a capacitor C9 to one side.
  • the vehicle left and right LED headlight driving signal is applied from the ECU.
  • the microcomputer unit drives the left LED headlamp smoothing module 250 and the right LED headlamp smoothing module 260 to apply the vehicle battery power.
  • the left LED headlamp smoothing module 250 applies the first output current data output through the first parallel LED module sensed through the second sensing resistor 255 to the (-) terminal of the first comparator. .
  • the left LED headlamp smoothing module 260 applies the second output current data output through the second parallel LED module sensed through the fourth sensing resistor 265 to the negative terminal of the second comparator. .
  • the reference voltage values for the left LED headlamp driving and the right LED headlamp driving are applied to the positive input terminals of the first comparator and the second comparator. Pass the reference voltage value.
  • the first output current data sensed by the first comparator is compared with a reference value of the left LED headlamp driving set by the reference voltage setting unit, and then the output data is input to the microcomputer unit.
  • the second output current data sensed by the second comparator 230 is compared with the reference voltage value of the right LED headlamp driving set by the reference voltage setting unit, and then the output data is input to the microcomputer unit.
  • the brightness of the left and right LED headlamps of the vehicle is controlled.
  • the resistance R3 is connected to the output terminal P1.2 of the microcomputer unit, and the PWM pulse width corresponding to the output data processed by the first comparator is compared with the turn-on driving current of the second switching unit of the left LED headlamp smoothing module 250.
  • the PWM pulse width corresponding to the output data which has been compared and processed through the second comparator turns on the fourth switching unit of the smoothing module 260 for the right LED headlamp. It flows into the drive current.
  • the left LED headlamp LED module of the left LED headlamp is turned on in accordance with the PWM output signal PWM_L for the left LED headlamp driving part of the microcomputer in the left LED headlamp smoothing module 250 and the LED module for the left LED headlamp of the car battery.
  • the driving voltage is applied to emit light equal to the brightness (luminance) of the LED headlights on the right side of the vehicle.
  • the right LED headlight LED module of the right side LED headlight of the car battery is turned on according to the PWM output signal PWM_R of the right LED headlight driving part of the microcomputer part from the right LED headlight smoothing module 260.
  • the driving voltage is applied to emit light equal to the brightness (luminance) of the left LED headlight of the vehicle.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

Pour résoudre le problème lié à la réduction rapide de l'intensité des phares à DEL gauche/droite classiques d'une automobile en raison des caractéristiques d'un module DEL lorsque la batterie du véhicule est faible après déchargement mais qu'elle fonctionne à une tension nominale, ainsi que le problème de surchauffe dans le phares à DEL gauche/droite d'une automobile utilisant trop de courant, et dans le composant à tension constante et dans le composant à courant constant, la présente invention concerne un module de commande simultanée pour des phares à DEL gauche/droite d'une automobile permettant d'obtenir une luminance identique des phares à DEL gauche/droite. Le module de commande simultanée comprend un module de commande simultanée (200) pour des phares à DEL gauche/droite d'une automobile, lequel module est connecté à un côté d'un bloc de commande électronique du véhicule et il détecte le courant de sortie qui traverse une pluralité de module DEL de type parallèle ménagés en parallèle et reliés à un côté des phares à DEL gauche/droite d'une automobile, et puis il renvoie le courant entrant vers la pluralité de modules DEL de type parallèle, en fonction d'une tension de référence pour le fonctionnement des modules DEL, de telle sorte que l'intensité des phares à DEL gauche/droite d'une automobile est maintenue de manière identique pour les deux phares. Le dispositif selon l'invention peut fonctionner sans dispositif relais, ce qui permet de réduire le volume du module de commande pour les phares à DEL gauche/droite d'une automobile d'au moins 70% par rapport au volume d'un module de commande classique, il permet de sélectionner l'intensité des phares à DEL gauche/droite parmi trois stades en fonction de la météo et du lieu de déplacement, il permet de mesurer le courant qui circule dans la pluralité de phares à DEL gauche/droite d'une automobile installés en parallèle, et il permet de conserver une intensité identique desdits phares sans utiliser des composants de tension constante ou des composants de courant constant par régulation de la largeur d'impulsion PWM jusqu'à ce que l'unité micro-informatique accuse réception de l'état de batterie faible.
PCT/KR2011/004292 2010-06-11 2011-06-11 Module de commande simultanée pour phares à del gauche/droite d'une automobile permettant d'obtenir une luminance identique des phares à del gauche/droite WO2011155802A2 (fr)

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KR10-2010-0055649 2010-06-11
KR1020100055649A KR101024965B1 (ko) 2010-06-11 2010-06-11 좌우ｌｅｄ 전조등의 동일휘도를 제어시키는 자동차 좌우ｌｅｄ 전조등 동시컨트롤 모듈

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KR102036347B1 (ko) 2013-02-12 2019-10-24 삼성전자 주식회사 발광소자 어레이부 및 이를 포함하는 발광소자 모듈
DE102014217070A1 (de) * 2013-08-28 2015-03-05 Elmos Semiconductor Aktiengesellschaft Vorrichtung zur Versorgung mindestens eines Verbrauchers mit elektrischer Energie bzw. zur Bereitstellung elektrischer Leistung für mindestens einen Verbraucher
KR200485455Y1 (ko) 2016-04-29 2018-01-11 정의경 차량의 led 등 제어 컨트롤 모듈
CN108106548B (zh) * 2018-02-01 2023-11-14 山西大学 用于机动车检测线的机动车外廓长度测量系统
KR102643676B1 (ko) * 2018-06-15 2024-03-06 엘지이노텍 주식회사 엘이디 구동장치 및 이를 포함하는 차량용 램프
CN110985994B (zh) * 2019-11-26 2022-01-07 黄河交通学院 一种环保节能的新能源汽车led灯

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WO2011155802A3 (fr) 2012-03-15
KR101024965B1 (ko) 2011-03-25

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