KR101044708B1 - Headlamp apparatus in the car - Google Patents

Abstract

The present invention relates to a headlight device, and more specifically, to the direction of irradiation of a headlamp having a plurality of LEDs arranged in two dimensions, according to the speed and the driving direction of the vehicle. Relates to a headlamp device. Such a present invention includes a steering angle sensor for sensing a steering angle of a vehicle; A speed sensor detecting a driving speed of the vehicle; A headlamp having a plurality of LEDs two-dimensionally arranged in a matrix form in a horizontal direction and a vertical direction to irradiate different directions; And a first control signal output to the LED disposed in at least one vertical direction of the vertical direction in consideration of the detected steering angle, and disposed in at least one horizontal direction of the horizontal direction in consideration of the detected traveling speed. It includes a control unit for outputting a second control signal to the LED side, the LED for receiving the first, the second control signal at the same time is turned on, to provide a headlight device of the vehicle for examining the pre-arranged direction.

Horizontal, vertical, matrix, LED, headlight, vehicle

Description

Headlight device of vehicle {HEADLAMP APPARATUS IN THE CAR}

The present invention relates to a headlight device, and more specifically, to the direction of irradiation of a headlamp having a plurality of LEDs arranged in two dimensions, according to the speed and the driving direction of the vehicle. Relates to a headlamp device.

In general, a headlamp (HL: HeaLamp) of the vehicle is installed at a predetermined front end of the vehicle to illuminate the driving direction of the vehicle by the driver's switch operation during the night driving.

It is provided with a lamp which is provided with a lamp which is turned on by the connection of a power source inside, and is provided with a reflector which reflects the light emitted from this lamp and irradiates it to the front surface.

However, such a headlight device of the conventional vehicle has a problem that requires frequent replacement because it is a general lamp having a long life. In addition, the conventional headlight is fixed to always illuminate the front of the vehicle, there is a problem in securing a night vision when the vehicle is moved to the left or right.

In addition, regardless of the speed of the vehicle to illuminate the front at a certain position (height), there was a problem that does not provide a convenient view to the driver.

In order to overcome this problem, it is possible to control the direction of the multi-stage by using a motor for the headlight that requires the use of a conventional reflector. However, in this case, a large mechanism is required, and one lamp and the reflector are rotated using the motor. Since a mechanical drive means is needed to make the mechanism larger, it becomes a factor that increases the probability of failure.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and the direction of irradiation of a headlamp having a plurality of LEDs arranged in two dimensions can be adjusted up, down, left and right according to the speed and driving direction of the vehicle. The object is to provide a headlamp device for a vehicle.

Another object of the present invention is to provide a headlight device of a vehicle that can control the irradiation direction of the headlight by individually controlling a plurality of LEDs arranged in two dimensions in consideration of the steering angle and speed of the vehicle.

Another object of the present invention is to provide a vehicle headlight device that can be arranged with a smaller area than the lamp used in the conventional headlight, and at the same time simplifying without the need for a separate reflector or mechanical drive unit. In providing.

Still another object of the present invention is to provide a headlight device of a vehicle, which enables the use of a plurality of long-lived LEDs as headlamps controlled according to the speed and steering angle of the vehicle.

Technical problems of the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

A headlight device of a vehicle according to an aspect of the present invention for achieving the above object, the steering angle sensor for detecting a steering angle of the vehicle; A speed sensor detecting a driving speed of the vehicle; A headlamp having a plurality of LEDs two-dimensionally arranged in a matrix form in a horizontal direction and a vertical direction to irradiate different directions; And a first control signal output to the LED disposed in at least one vertical direction of the vertical direction in consideration of the detected steering angle, and disposed in at least one horizontal direction of the horizontal direction in consideration of the detected traveling speed. And a controller for outputting a second control signal to the LED, wherein the LEDs simultaneously receiving the first and second control signals are turned on and irradiate a prearranged direction.

Preferably, the headlamp is located at the front end of the LED side arranged in the vertical direction and switched by the first control signal; And a second switch positioned at a front end of the LED in a horizontal direction and switched by the second control signal, wherein the at least one LED meets a line simultaneously switched by the first and second switches. It is characterized in that the power is supplied.

Preferably, the control unit includes a left and right irradiation direction control unit for controlling the switch by applying a first control signal to the switch connected to the front end of the LED side already arranged in the vertical direction in consideration of the detected steering angle; And a top and bottom irradiation direction controller configured to control the switch by applying a second control signal to a switch connected to a front end of the LED, which is disposed in the horizontal direction, in consideration of the detected steering angle.

Preferably, the up and down irradiation direction control unit outputs a second control signal to a switch in a specific horizontal direction preset to perform a high beam function, when the high beam request signal is input, and to a switch in a specific vertical direction preset to perform the high beam function. And requesting the vertical irradiation direction control unit to output a first control signal.

Preferably, the headlamp is arranged such that the horizontal row of the lower end so that the irradiation direction of the horizontal direction is the upward direction, and arranged so as to gradually irradiate the downward direction from the lowest horizontal column to the upper horizontal column, the vertical irradiation direction is the center The vertical lines of the LEDs located on the vertical line are arranged to irradiate the front side, and the left side is arranged to irradiate the right direction from the center vertical line to the left LED vertical line, and the left side is irradiated to the right LED vertical column on the center vertical line. It is done.

According to the above-mentioned problem solving means in the present invention, by controlling a plurality of LEDs of the headlamps arranged in two dimensions so as to irradiate different directions in consideration of the steering angle and speed of the vehicle, it is easy to ensure the night vision of the driver It works.

That is, by arranging several LEDs up and down and left and right, there is an effect that the irradiation direction can be adjusted in multiple stages.

In addition, by adopting LEDs with smaller footprint than conventional lamps, many LEDs can be arranged adjacent to each other, and there is no separate reflector or mechanical driving part, so the size of headlights with multiple LEDs is small and simple. It can be used to produce a variety of vehicles can be used.

In addition, since the life of the LED is longer than that of the existing lamp, it can be used without replacement until the vehicle's junk car is installed once, thereby increasing the convenience of the driver.

The headlight device of a vehicle of the present invention proposes a technical configuration for controlling a headlight having a plurality of LEDs arranged in two dimensions so as to irradiate different directions in consideration of a detected speed and steering angle of the vehicle. At this time, turn on only LEDs that satisfy the vehicle's speed and LEDs that satisfy the LED's steering angle at the same time to secure the driver's field of vision by headlight control at night. To help.

In the following description specific details of the headlamp apparatus of the vehicle of the present invention are presented to provide a more general understanding of the present invention, which is understood that the present invention may be readily implemented without these specific details and by their modifications. It will be apparent to those of ordinary skill in the art.

Description of the headlight device of the vehicle according to the present invention will be described first through a schematic diagram showing the configuration of the headlight device of the vehicle, and will be described in detail with respect to the headlamp composed of a plurality of LEDs.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings, with reference to the parts necessary for understanding the operation and operation according to the present invention.

1 is a block diagram of a headlight device of a vehicle according to an embodiment of the present invention.

As shown in FIG. 1, the headlight device 100 of the vehicle according to the present invention includes a steering angle sensor 11, a speed sensor 13, a headlight 15, a memory 17, a controller 19, and the like. It is composed.

First, the steering angle sensor 11 detects a steering angle of the vehicle. Here, the steering angle sensor 11 preferably detects the steering angle of the steering wheel.

The speed sensor 13 detects a traveling speed of the vehicle. Since the steering angle sensor 11 and the speed sensor 2 are generally known, detailed descriptions thereof will be omitted.

The headlamp 15 has a plurality of LEDs arranged in two dimensions in the form of a matrix in a horizontal direction and a vertical direction so as to irradiate different directions. In addition, the headlamp 15 is located at the front end of the LED side arranged in the vertical direction and switched by the first control signal (not shown), and the second control is located at the front end of the LED side arranged in the horizontal direction And a second switch (not shown) that is switched by a signal.

As a result, the headlamp 15 is powered on (ON) at least one LED in which the vertical column (vertical column) and the horizontal column (horizontal column) which are simultaneously switched by the first and second switches cross each other. . The operation of the headlamp 15 will be described later in detail.

The memory 17 stores a program according to the operation of a general vehicle. In addition, the memory 17 stores a program for outputting control signals to horizontal and vertical columns in the horizontal and vertical directions according to the steering angle detected by the steering angle sensor 11 and the speed sensor 13 and the driving speed of the vehicle. do.

The controller 19 controls the overall operation according to the operation of the general vehicle. In addition, the controller 19 outputs a first control signal to an LED disposed in at least one vertical direction in the vertical direction in consideration of the detected steering angle information, and in at least one horizontal direction in the horizontal direction in consideration of the detected driving speed information. Outputs a second control signal to the LED side. Accordingly, the specific LEDs in which the vertical column and the horizontal column meet by the first and second control signals are turned on, and the prearranged directions are examined.

The control unit 19 applies a first control signal to a switch connected to a front end of the LED side pre-arranged in a corresponding vertical direction in consideration of a steering angle, and controls a left and right irradiation direction control unit (not shown) to control the switch, and the detected driving speed. In consideration of the above, it includes a vertical irradiation direction control unit (not shown) for controlling the switch by applying a second control signal to the switch connected to the front end of the LED side is arranged in the horizontal direction. The operation and operation of the controller 19 will be described later in detail.

Referring to Figure 1, the operation and operation of the headlight device of the vehicle according to the present invention, first, the control unit 19 is information on the steering angle and the running speed of the vehicle detected from the steering angle sensor 11 and the speed sensor 13 Get input.

According to the detected steering angle and the information about the driving speed of the vehicle, the controller 19 selectively selects a headlight arranged two-dimensionally in consideration of the steering angle and the traveling speed of the vehicle by a program programmed and programmed in the memory 17. The first and second control signals to be turned on are output to the headlamp 15 side.

Then, the first and second switches are switched by the first and second control signals to turn on a specific LED where the vertical column and the horizontal column meet. This is a way in which the power supply line is formed by the first switch and the second switch.

FIG. 2 is an exemplary view for explaining an internal configuration of a headlamp in FIG. 1.

As shown in FIG. 2, the headlamp 15 according to the present invention has a plurality of LEDs irradiating different directions as mentioned above, and has a two-dimensional matrix shape as shown in FIG. Has an LED array.

As shown in (b) of FIG. 2, the two-dimensionally arranged LED is positioned so that the irradiation direction of the LEDs in the horizontal column located at the bottom horizontally becomes the existing upward light direction, and in the horizontal LEDs at the bottom, As it goes up to the row LEDs, the rows of LEDs are positioned in rows so that the direction of irradiation of the rows of LEDs is gradually radiated downward.

That is, the vertical direction irradiated varies depending on the vertical position of the LED.

Also, as shown in (c) of FIG. 2, the LEDs viewed from the top of the headlamp 15 are positioned so that the vertical LEDs located at the center vertical line irradiate the front surface, and the right LEDs are irradiated toward the left LED vertical column, and the right LED vertical column is positioned. Position the LED to illuminate the leftward direction.

Referring to the on / off operation of a plurality of LEDs provided in the headlamp 15 of the present invention as follows.

3 and 4 are exemplary diagrams for explaining an on / off operation of a headlamp in FIG. 1.

3 and 4, the plurality of LEDs provided in the headlamp 15 of the present invention is disposed two-dimensionally in the form of a matrix in the horizontal and vertical directions to irradiate different directions.

The plurality of LEDs receives left and right steering direction control units 19a for selectively turning on / off vertical column LEDs by receiving detected steering angle information, and horizontal row LEDs by receiving travel speed information of the detected vehicle. Irradiation in the irradiation direction optimized for the steering angle and the traveling speed of the vehicle under the control of the vertical irradiation direction control unit 19b which is selectively turned on / off.

A switch (first and second switch) is provided at a front end of the vertical column LED in the vertical direction and the horizontal column LED in the horizontal direction. Here, the switch switched by the control signal of the left and right irradiation direction control unit 19a of FIGS. 3 and 4 is collectively referred to as a first switch, and the switch switched by the control signal of the up and down irradiation direction control unit 19b is a second switch. Collectively.

The first switch allows the positive power to be selectively supplied to the LEDs arranged in the vertical column in the vertical direction, and the second switch is negative to the LEDs arranged in the horizontal row in the vertical direction. Allow power to be supplied.

As a result, the LEDs at the positions where the vertical columns of LEDs turned on by the left and right irradiation direction controllers 19a and the columns turned on by the vertical irradiation direction controllers 19b (ie, turned on at the same time vertically and horizontally) turn on to correspond to each other. Irradiation in left, right and up and down directions. At this time, at least one LED is finally turned on.

For example, the left and right irradiation direction control unit 19a for receiving the steering angle information detected as shown in FIG. 4 and the up and down irradiation direction control unit 19b for receiving the traveling speed information of the vehicle in consideration of the input information to the switch open / close control line side. That is, a switch short signal is output.

Accordingly, the left and right irradiation direction control unit 19a outputs a switch short circuit signal to the fourth, fifth and sixth switch opening and closing control lines, and the upper and lower irradiation direction control unit 19b is a switch short circuit signal to the second, third and fourth switch opening and closing control lines. In the end, the left and right irradiation direction control unit 19a corresponds to the vertical row LED corresponding to the 4th, 5th and 6th switch opening and closing control lines, and the top and bottom irradiation direction control unit 19b corresponds to the 2nd, 3rd and 4th switch opening and closing control lines. The LEDs (A) at the position where the horizontal LEDs meet each other are turned on to irradiate light in a specific direction.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the scope of the following claims, but also by the equivalents of the claims.

1 is a block diagram of a headlight device of a vehicle according to an embodiment of the present invention.

FIG. 2 is an exemplary diagram for explaining an internal configuration of a headlamp in FIG. 1. FIG.

3 and 4 are exemplary diagrams for explaining an on / off operation of a headlamp in FIG. 1.

Claims (5)

A steering angle sensor for detecting a steering angle of the vehicle; A speed sensor detecting a driving speed of the vehicle; A headlamp having a plurality of LEDs two-dimensionally arranged in a matrix form in a horizontal direction and a vertical direction to irradiate different directions; And An LED disposed in at least one horizontal direction in the horizontal direction in response to the detected steering angle and outputting a first control signal to an LED disposed in at least one vertical direction in the vertical direction; A control unit for outputting a second control signal to the side, LED, which simultaneously receives the first and second control signals, is turned on, and illuminates a prearranged direction. The method of claim 1, wherein the headlamp, A first switch positioned at the front end of the LED side disposed in the vertical direction and switched by the first control signal; And A second switch is located in front of the LED side arranged in the horizontal direction and switched by the second control signal, At least one LED is a power supply is supplied to the vehicle, characterized in that the line that is simultaneously switched by the first switch, the second switch. The method of claim 2, wherein the control unit, Left and right irradiation direction control unit for controlling the switch by applying a first control signal to the switch connected to the front end of the LED in the vertical direction in consideration of the detected steering angle; And And a vertical irradiation direction control unit configured to control the switch by applying a second control signal to a switch connected to a front end of the LED, which is disposed in the corresponding horizontal direction, in consideration of the detected steering angle. The method of claim 3, wherein the vertical irradiation direction control unit, When the high beam request signal is input, the second control signal is output to the switch side of the specific horizontal direction preset to perform the high beam function, and the vertical to output the first control signal to the switch side of the specific vertical direction preset to perform the high beam function. The headlight device of a vehicle, characterized by requesting the irradiation direction controller side. The method of claim 1, wherein the headlamp, The horizontal column at the bottom is arranged so that the irradiation direction in the horizontal direction is the upward light direction, and the lower horizontal column is arranged to irradiate downward gradually from the lowest horizontal column to the upper horizontal column. The vertical irradiation direction of the vertical direction is arranged so that the vertical column of LEDs located on the center vertical line irradiates the front surface, and the right direction is disposed so as to go from the center vertical line to the left LED vertical column, and the left direction is moving toward the right LED vertical column on the center vertical line. The headlight device of a vehicle, characterized in that arranged to irradiate.

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