KR100331474B1 - Apparatus for controlling car head light on-off automatically - Google Patents

Abstract

The present invention relates to a control device for automatically turning on and off the headlights of an automobile, and in particular, to make the headlight operation more convenient after taillight operation, and to automatically operate the headlights when the vehicle is started on / off during night driving. In addition, the present invention relates to a headlight automatic on / off control apparatus for a vehicle which makes it possible to use a clock from a speed sensor of an analog speedometer and a speed sensor of the speedometer.

To this end, the present invention receives the operating power from the power supply in accordance with the operation state of the taillight switch or headlight switch of the vehicle to generate a taillight operation signal or headlight operation signal to control the operation of the taillight driving unit or headlight driving unit An off control apparatus, comprising: a clock signal detection unit for detecting a voltage according to a traveling speed of a vehicle from a clock signal of a speed sensor installed inside a speedometer of a vehicle; A sensitivity adjusting unit which adjusts and outputs a sensitivity of the voltage detected by the clock signal detecting unit; A headlight controller for controlling the headlight operation signal according to a detection voltage of the clock signal detector and a taillight operation signal controlled by the sensitivity controller; A headlight auto on / off control device for a vehicle comprising a headlight emitting unit for generating a headlight operation signal by the voltage applied from the headlight control unit to emit a headlight.

Description

Headlight automatic on / off control device of car {APPARATUS FOR CONTROLLING CAR HEAD LIGHT ON-OFF AUTOMATICALLY}

The present invention relates to an automatic on / off control device for a headlight of a vehicle. In an apparatus for controlling a headlight on / off of a vehicle operating by receiving a taillight operation signal and a headlight operation signal from a light operation switch, a signal input from a taillight operation signal. The present invention relates to a vehicle headlight auto on / off control device that automatically controls a headlight using a clock from a speed sensor of a speedometer.

In general, an automobile driver operates by rotating a light operation switch of a vehicle to operate a tail light and a headlight, and when the light operation switch is operated, the driver needs to manually turn on / off the operation of the headlight after the tail light operation. There was discomfort.

In addition, the driver operates the light operation switch while driving, but turns off the light operation switch when restarting after turning off the light operation switch to prevent fatigue to the driver's eyes when the driver stops to wait for a signal at the crosswalk. This causes a great inconvenience for the driver and increases the risk of an accident.

Accordingly, the present invention has been made to solve the above-described problems, the present invention is the headlight on / off control device for a vehicle operating by receiving a taillight operation signal and a headlight operation signal from the light operation switch, taillight operation It is an object of the present invention to provide a headlight control apparatus for a vehicle, which receives a clock signal of the speedometer by determining whether it is traveling from a speedometer when a signal is input.

The present invention for achieving the above object is to receive the operating power from the power supply in accordance with the operation state of the taillight switch or headlight switch of the vehicle to generate a taillight operation signal or headlight operation signal to control the operation of the taillight driving unit or the headlight driving unit. A headlight on / off control apparatus for a vehicle, comprising: a clock signal detector for detecting a voltage according to a driving speed of a vehicle from a clock signal of a speed sensor installed inside a speedometer of the vehicle; A sensitivity adjusting unit which adjusts and outputs a sensitivity of the voltage detected by the clock signal detecting unit; A headlamp controller for controlling the headlamp operation signal according to a detection voltage of the clock signal detector and a taillight operation signal controlled by the sensitivity controller; It provides a headlight automatic on / off control device for a vehicle comprising a headlight emitting unit for generating a headlight operation signal by the voltage applied from the headlight control unit to emit a headlight.

The clock signal detector outputs or shorts the power supplied from the input tail light operation signal by a voltage applied by the speed sensor to the speedometer, and the sensitivity controller charges and charges the previous voltage of the voltage input from the clock signal detector. It may include a charging and discharging unit consisting of a charging unit and a discharge unit for discharging.

The charging and discharging unit may include a capacitor and a resistor for charging or discharging the detected voltage detected by the clock signal detector for a predetermined time to prevent attenuation of the voltage sensitivity of the headlamp light emitting unit.

The sensitivity controller may use a variable resistor to adjust the discharge time.

1 is a block diagram of a headlight automatic on / off control apparatus for a vehicle according to the present invention.

2 is a circuit diagram of a headlight automatic on / off control apparatus for a vehicle according to an embodiment of the present invention.

Figure 3 is an analog speedometer of a vehicle with a switch according to an embodiment of the present invention.

4 is a diagram illustrating a period in which a vehicle speedometer according to an embodiment of the present invention operates with a clock coming from a speed sensor.

5 is a state diagram showing the charge and discharge effect of the voltage according to an embodiment of the present invention.

Figure 6 is a voltage maintenance time chart when the automatic headlight control device according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

10: stop detection unit 20: second hand

30: stop measuring part 40, 105: coaxial connection disc

50: second hand connecting disk 60: headlight light emitting unit

70: ground connection 65,100: power supply

80: clock input unit 101: clock signal detection unit

102: headlight control unit 103: charging and discharging unit

104: sensitivity control unit SW1, SW2, SW3, SW4: switch

R1, R2, R3, R4, R5: Resistor C1, C2: Capacitor

D1, D2: Diodes Q1, Q2, Q3: Transistors

LS1: Relay system PC1, PC2: Photocoupler

These objects, features and advantages of the present invention will be more readily understood by reference to the accompanying drawings and the following detailed description.

1 is a block diagram of a headlight automatic on / off control apparatus for a vehicle according to the present invention.

The present invention receives the operating power from the power supply unit 100 according to the operation state of the taillight switch or headlight switch of the vehicle to generate a taillight operation signal or a headlight operation signal to control the operation of the taillight driving unit or the headlight driving unit of the vehicle headlight on / An off control apparatus, comprising: a clock signal detection unit (101) for detecting a voltage according to a traveling speed of a vehicle from a clock signal of a speed sensor installed inside a speedometer of a vehicle; A sensitivity controller 104 for controlling and outputting a sensitivity of the voltage detected by the clock signal detector; A headlight controller (102) for controlling the headlight operation signal according to the detection voltage of the clock signal detector and the taillight operation signal whose sensitivity is adjusted by the sensitivity controller (104); It is a headlight automatic on / off control device for a vehicle including a headlight emitting unit 60 for generating a headlight by generating a headlight operation signal by the voltage applied from the headlight control unit.

The power is supplied from the input taillight operation signal, and the headlight controller 102 transmits the voltage applied by the speed sensor from the speedometer to the clock signal detector 101.

The clock signal detector 101 transmits or shorts the power supplied from the input tail light operation signal by a voltage applied by the speed sensor to the speedometer, and charges and discharges the previous voltage of the voltage input from the clock signal detector. In order to configure the sensitivity adjusting unit 104 including a charging and discharging unit 103 composed of a charging unit and a discharge unit. In addition, a capacitor and a resistor for charging or discharging the detected voltage detected by the clock signal detector 101 for a predetermined time to prevent attenuation of the voltage sensitivity transmitted from the sensitivity adjuster 104 to the headlamp light emitting unit 60. In addition, the sensitivity control unit may use a variable resistor to adjust the discharge time.

2 is a circuit diagram of a headlight automatic on / off control apparatus for a vehicle according to an exemplary embodiment of the present invention.

The present invention relates to an automatic on / off control device for a headlight of a vehicle. In an apparatus for controlling a light operation switch which receives a taillight operation signal and a headlight operation signal from a light operation switch when the vehicle is driven, a signal input from a taillight operation signal The present invention relates to a vehicle headlight auto on / off control device that automatically controls a headlight using a clock from a speed sensor of a speedometer.

In the present specification, an embodiment of the present invention will be described based on a circuit diagram that implements the above two functions. However, the technical idea of the present invention is not limited thereto and can be variously modified by those skilled in the art.

In addition, the parts used in the embodiments of the present invention are deformable and illustrative examples and may be modified.

First, the operation of each switch shown in the drawings will be described with reference to FIG.

Switch 1 (SW1) is connected to the power supply unit when the power is supplied from the power supply unit 5 and 6 terminals, 2 and 3 terminals are connected, switch 2 (SW2) is connected to the headlight emitting unit The switch 3 (SW3) is connected to the first and second terminals is connected to the sensitivity control unit for adjusting and outputting the sensitivity of the voltage detected from the clock signal detector. In addition, the switch 4 (SW4) when the speed is set in the speedometer installed inside the analog speedometer of the car at a certain speed according to the speed detected by short-circuit the power input from the power supply connected to the switch 1 (SW1) and the power to the headlight emitting unit other than the above case To supply.

The power supply unit 100 supplies power to the switch 1 (SW1) from the taillight operation signal, the clock signal detection unit 101 receives the voltage detected by the clock 80 sensitivity control unit 104 and the sensitivity control unit Supplied to the charge / discharge unit 103 of 104, the transistor 3 (Q3), the light emitting diode 1 (D1) and the relay system (LS1) is supplied to the headlight light emitting unit 60 connected to the switch 2 (SW2) Implement the function of the present invention to control automatic on / off of the headlights.

Here, the sensitivity adjusting unit 104 adjusts and outputs the sensitivity of the voltage detected by the clock signal detecting unit 101 through the photo coupler 2 (PC2) and the photo coupler 1 (PC1), and the headlamp control unit 102. The switch 2 (SW2) for implementing the on / off operation of the headlight to the headlight emitting unit according to the speedometer sensed from the speedometer inside the vehicle performs its function.

In addition, the charging and discharging unit 103 is connected to the clock signal detecting unit and mounts a variable resistor 1 (R1) and a capacitor 1 (C1) to a supply voltage, and further includes a discharge function and a charge function, respectively.

Referring to FIG. 2, terminals 1 and 2 of the switch 4 (SW4) are respectively connected to the speed 0 stop measurement plate and the speed 0 sensing unit of the speedometer mounted in the vehicle body, and the terminal 5 of the switch 1 (SW1). Is connected to the power is applied when the tail light switch input of the light unit operation switch function, the automatic headlight switch unit 100 mounted in the vehicle body is disconnected to connect one wire to the second terminal of the switch 1 (SW1) and the other The line is connected to switch 2 (SW2). Switch 3 (SW3) is connected to the circuit by connecting the terminal 2-3 and the terminal 1-2 according to the embodiment of the present invention.

Referring to the operation of Figure 2 in the above connection state as follows.

Looking at the operation of the automotive headlight control device of the present invention operating through the power supplied when a certain speed is reached from the speed indicating second hand portion 20 of the analog speedometer of the vehicle.

When the vehicle starts to drive, when the driver's manual operation of the tail light operation power supply unit 100 is operated by the driver's manual operation, the power is input from the vehicle body, and terminals 5, 6, 2 and 3 of the switch 1 (SW1) Terminal is connected.

In this case, terminals 2-3 of the switch 3 (SW3) are connected, terminals 1 and 2 of the switch 4 (SW4) are disconnected, and the voltage is connected to the resistor 3 (R3) and the light emitting diode 2 (D2). Is applied to the base terminal of transistor Q2. At this time, the collector terminal of the transistor Q2 and the emitter terminal are conducted so that a 12V voltage of the collector terminal is applied to about 11.3V to the emitter terminal. The voltage is applied to the base terminal of transistor 1 (Q1), the collector terminal and the emitter terminal are conducted so that light emitting diode 1 D1 emits light and relay system LS1 conducts. In addition, since the relay system LS1 operates and terminals 2-5 of the relay system LS1 are contacted, the headlight mounted on the vehicle body via the headlight connection switch 2 (SW2) turns on. As the switch 4 (SW4) connected to the stop measuring unit 30 and the stop detecting unit 10 of the speedometer repeats the connection and the short circuit around 0 km / h, the headlight repeats the on / off operation. As described above, the terminal resistor is charged to capacitor 1 (C1) in variable resistor 1 (R1) to prevent the repetitive operation and adjust the headlight sensitivity of the headlight emitting part connected to switch 2 (SW2), thereby discharging and charging the headlight power. The headlamp is kept on according to the resistance value of the variable resistor R1.

On the other hand, when power is supplied from the power supply unit 65 while terminals 1 and 2 of the switch 4 (SW4) are connected when the vehicle is stopped, the voltage of the transistor 2 (Q2) is applied to 0V, and the transistor 2 ( The collector and emitter of Q2) are open and no 12V voltage is applied. Here, the relay system LS1 operates for a specific time by the variable resistor 1 (R1) and the capacitor 1 (C1) to maintain the ON operation of the headlamp, and when the voltage of the capacitor C1 falls below the set reference voltage, the relay system (LS1) stops operation and finally the headlights change to off operation.

On the other hand, when the speedometer of the vehicle uses the clock input from the speed sensor operates through the following operation configuration.

Referring to FIG. 2, when the input pulse is supplied, the pulse input to the clock input unit 80 enters the base terminal of transistor 3 (Q3) and the second terminal of photocoupler 2 (PC2), and the pulse is divided into two branches. Take input The reason for receiving the pulse input in two ways as described above is that the voltage of the vehicle may be 12V or 0V when the vehicle is stopped, so the clock comes in only when the voltage is changed from 0V to 12V, and the remaining 12V, 0V, and / or 0V at 12V. This is because it assumes that the car does not operate.

Terminals 1 and 2 of Switch 3 (SW3) are connected, and when the 0V voltage is input from the clock input unit 80, terminals 1 and 2 of the photocoupler 2 (PC2) are turned on so that the 4 12V voltages are 3 times. About 11.3V is applied and 1-2 times of photo coupler 1 (PC1) are conducted and 3-4 times are conducted by the conduction of the terminal. The voltage of 0V is also applied to the base terminal of transistor 3 (Q3), the collector and base of transistor 3 (Q3) are disconnected, and the voltage of 12V is not connected to terminals 1-2 of photocoupler 1 (PC1). Therefore, the 12V voltage applied to No. 4 is not applied to the No. 3 terminal, so the voltage of 0V is applied to the base of Capacitor 1 (C1) and the voltage of C is not applied to E. Therefore, relay system 1 (LS1) Since it is not working, the headlights perform an off operation.

The photocoupler 2 (PC2) operating when the voltage of 0 V is input from the clock input unit 80 is a transistor 3 (Q3) and a photocoupler 1 (PC1) connected to the transistor 3 (Q3) operating when the input clock pulse is a HIGH signal. Since power cannot be supplied to terminal 4 of), resistor 4 (R4) and capacitor 2 (C2) charge and discharge the previous signal, thereby preventing the power of photocoupler 1 (PC1) from being attenuated to some extent.

On the other hand, when a voltage of 12V is applied from the clock input unit 80, terminals 1-2 of the photocoupler 2 (PC2) do not conduct because both sides are 12V, and 3-4 is disconnected. However, as the voltage charged in the capacitor 2 (C2) is discharged by the resistor 4 (R4) and the capacitor 2 (C2), a voltage of 5 V or more is maintained for about 0.06 seconds and the photocoupler 1 (PC1) Terminal 1) of 1-2) conducts and 3-4 conducts due to the conduction of terminal 1-2. In addition, when a voltage of 12V is applied to the base terminal of transistor 3 (Q3), a voltage of 12V of the collector is applied at a voltage of about 11.3V toward the base, and the voltage is conducted 3-4 times of photocoupler 1 (PC1) and is weak. A voltage of 10.6 V is applied to terminal 3 and applied to the base of transistor 1 (Q1). When the collector and the emitter of transistor 1 (Q1) are turned on and current flows in the coil of relay system 1 (LS1), the relay system (LS1) is applied to the terminals 1-5 of the relay system (LS1). Connect the relay system (LS1) to terminals 2-5 to execute headlight on operation. After about 0.06 seconds, the voltage of terminal 1 of photocoupler 1 (PC1) falls below the reference voltage, so the number of 3-4 is broken.

The light emitting diode 2 (D2) shown in the drawing is always lighted when the automatic headlight switch operation to determine the operation of the automatic headlight control device, the light emitting diode 1 (D1) is turned on when the headlight off operation can detect whether the headlight is on. have. In addition, the light emitting diodes 1 and 2 (D1 and D2) are all used to have a reverse current prevention function.

In the figure, the transistors 1, 2, 3 (Q1, Q2, Q3) use C1815, and the photocouplers 1, 2 (PC1, PC2) use PC817. The influence of the clocks of the circuits on the other side is excluded, and the light emitting diode 1 D1 determines whether the relay system LS1 operates.

3 is an analog speedometer of a vehicle with a switch according to an embodiment of the present invention.

Referring to FIG. 3, the analog speedometer of the figure includes a speed 0 stop measuring unit 30 and a speed measuring unit 10 of the speedometer for checking the presence or absence of contact with the speed 0 instrument panel of the second hand 20 inside the speedometer. Is mounted.

The speedometer includes a second hand connecting disk 50 which is a disk connected to the second hand 20 according to the rotation of the coaxial connecting disk 40 and the rotating coaxial connecting disk 40 when the vehicle is driven. By rotating by centrifugal force, power is supplied to the switch unit of the control device according to the present invention connected to the speed 0 stop measuring unit 30 of the speedometer and the stop measuring unit 10 of the speedometer.

In the speedometer, when the vehicle is stopped at speed 0 and driving, the stop measuring unit 30 and the speed 0 stop measuring unit 10 are short-circuited, and the speed 0 stop measuring unit 30 and the speed 0 stop measuring unit 10 are stopped. The signal according to the presence or absence of the short circuit is provided as an input signal in the circuit diagram of the present invention using the automobile headlight by the analog speedometer as the switch part.

The input signal according to whether the stop measuring plate 30 and the fixing pin 10 are connected or short-circuited is connected to and operated at terminals 1 and 2 of the switch 4 (SW4) of FIG.

4 is a diagram in which a vehicle speedometer operates with a clock coming from a speed sensor.

4 illustrates a case in which a clock of a vehicle enters a speedometer from a speed sensor side, and a DC voltage of 0V or 12V is applied when the vehicle is stopped, but repeats between 0V and 12V while driving. In this embodiment, the input or short-circuit signal according to the speed change before and after 0km / h is input and implemented, but the speed travel of about 5 km / h is about 5 times per second. Since the shape can be determined, in another embodiment, when the driving speed of the vehicle reaches about 5 km / h, the present invention is regarded as a minimum distance for starting the vehicle in a stopped state or according to a vehicle speed that senses another constant speed. It can be carried out.

In order to use the signal, the clock signal input unit 80 is connected to the line from which the clock comes from the speed sensor, and the power supply unit 65 connected to the tail light switch unit is connected to the fifth switch 1 (SW1). By disconnecting the wire connected to the headlight on / off switch located in the vehicle body, one wire is connected to the first terminal of the switch 1 (SW1), the other wire is connected to the headlight braking unit (60).

5 is a state diagram of maintaining the charge and discharge effect of the voltage according to an embodiment of the present invention.

Referring to FIG. 5, it can be seen that the discharge decreases exponentially like the A curve through the following equation.

v (t) = V _max e ^{-t / τ} = V _max e ^{-t / R1C1}

For example, if the input is a square wave of 12V and the lowest voltage is 7V, it is 7 = 12e ^{-T / R1C1} .

The B of FIG. 5 is a theoretical graph, and the following setting can be made through the curves of the A that are actually obtained that can be applied between T time intervals.

If the variable resistor 1 (R1) is 100KΩ and the capacitor 1 (C1) is 10uF, the discharge time is lowered to 7V or less after about 0.5 seconds, and the headlight is about 0.1 seconds after the start of driving. When the value of variable resistor 1 (R1) increases, the discharge time becomes longer. When the value of capacitor 1 (C1) increases, the discharge time increases, but it takes longer to charge capacitor 1 (C1).

In the present invention, since the headlight is turned on after the driving start input signal is input, the present invention sets the most suitable 10 uF, for example.

When the capacitor and the variable resistor are added by using the capacitors 1 and 2 (C1 and C2) for the effect of charging and the variable resistor 1 (R1) for the effect of the discharge so that the automatic headlight is not turned off, You can see that it can be maintained.

6 is a voltage maintenance time chart when the automatic headlight control device is installed according to an exemplary embodiment of the present invention.

When the switch connection part of the present invention is connected or shorted around 0km / h, the headlamp repeatedly performs on / off, and thus, the variable resistor R1 and the capacitor 1C1 are additionally charged to charge the power. ) To maintain the input voltage by adjusting the desired period.

Referring to FIG. 6, the voltage inputted at 12V is variable so that the signal is connected as described above, in order to prevent the signal from being short-circuited due to a sensitive reaction caused by a change in connection or short circuit of the switch connection over time. Resistor 1 (R1) and capacitor 1 (C1) were mounted.

The technical spirit of the present invention is not limited or suggested herein and can be variously modified and modified by those skilled in the art.

The automatic headlight control device for a vehicle according to the present invention as described above, by using the automatic headlight control device according to the speed of the manual operation to turn on / off the headlight in a situation such as a signal waiting, automatic power off of the headlight and Using the clock of the speed sensor has the advantage of reducing the charge and discharge operation cost of the existing processor.

Claims (5)

In the headlight on / off control device of the vehicle to control the operation of the taillight driving unit or the headlight driving unit by receiving the operating power from the power supply in accordance with the operation state of the taillight switch or headlight switch of the vehicle to generate a taillight operation signal or headlight operation signal, A clock signal detector for detecting a voltage according to a traveling speed of a vehicle from a clock signal of a speed sensor installed inside the speedometer of the vehicle; A sensitivity adjusting unit which adjusts and outputs a sensitivity of the voltage detected by the clock signal detecting unit; A headlight controller for controlling the headlight operation signal according to a detection voltage of the clock signal detector and a taillight operation signal controlled by the sensitivity controller; A headlight auto on / off control device for a vehicle, characterized in that the headlight emitting unit for generating a headlight operation signal by the voltage applied from the headlight control unit to emit a headlight. The method of claim 1, wherein the clock signal detector The headlight automatic on / off control apparatus for a vehicle, characterized in that the power is supplied or short-circuited by the voltage applied by the speed sensor in the speedometer. The method of claim 1, wherein the sensitivity control unit And a charging and discharging unit including a charging unit and a discharging unit for charging and discharging the previous voltage of the voltage input from the clock signal detection unit. The method of claim 3, wherein the charging and discharging unit In order to prevent attenuation of the voltage sensitivity of the headlight emitting unit, a headlight auto on / off control apparatus for a vehicle, comprising a capacitor and a resistor for charging or discharging the detected voltage detected by the clock signal detector for a predetermined time. The method of claim 3, wherein the sensitivity control unit A headlight automatic on / off control device for a vehicle, wherein the variable resistor is used to adjust the discharge time.