KR20170083326A - Apparatus and method for controlling lamp of a vehicle - Google Patents

Abstract

An apparatus for controlling a lamp controller for a vehicle according to an embodiment of the present invention includes a wireless power transmitter, a wireless power receiver, and a controller. In this case, the wireless power transmitter includes a first power transmitter for wirelessly transmitting power for driving the first lamp and a second power transmitter for wirelessly transmitting power for driving the second lamp. The wireless power receiver further includes a first power receiving unit electrically connected to the first lamp and a second power receiving unit electrically connected to the second lamp, and receives power transmitted from the wireless power transmitting unit. The control unit controls power supply from the first power receiving unit to the first lamp based on the magnitude of the power received by the first power receiving unit and controls the magnitude of the power received by the second power receiving unit, And controls power supply from the second power receiving unit to the second lamp.

Description

[0001] APPARATUS AND METHOD FOR CONTROLLING LAMP OF A VEHICLE [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an apparatus and a method for controlling various lamps mounted on a vehicle, and more particularly, to a vehicle lamp control apparatus and method for wirelessly transmitting and receiving power required for driving a lamp.

The vehicle is equipped with various lighting devices for the convenience and safety of the driver. Typically, a head lamp for securing the front view of the driver can be mentioned.

In addition, a rear comb lamp (REAR LAMP) which notifies the person in the rear to the presence and condition of the vehicle is generally mounted on the vehicle.

However, various lamps mounted on a conventional vehicle are connected through a battery, a connector, a connector, and a wire of a vehicle, and are supplied with electric power through a wire, and are turned on using supplied electric power.

 Such a conventional power transmission / reception structure of a vehicle lamp necessarily involves a lot of wire and bolt fastening operations, which results in a narrow space and a great limitation in improving work productivity. Also, due to the structural characteristics of the lamp supplied with the wired method, some tolerance or clearance exists, which causes a foreign matter such as dust or insects to penetrate into the lamp, which is a main cause of failure.

Particularly, when moisture is introduced into the lamp, serious conditions such as short-circuiting or fire can occur as well as corrosion of the lamp and the parts connected thereto.

Meanwhile, in recent years, so-called 'wireless power transmission', in which power is transmitted and received wirelessly between different devices without wired connection through wires or the like, is getting attention.

An object of the present invention is to provide a vehicular lamp control apparatus and method for wirelessly transmitting and receiving power required for driving each of a plurality of lamps mounted on a vehicle by using a wireless power transmission system.

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

According to an aspect of the present invention, there is provided a wireless power transmitter including a first power transmitter for wirelessly transmitting power for driving a first lamp and a second power transmitter for wirelessly transmitting power for driving a second lamp, A first power receiver coupled to the first lamp and a second power receiver coupled to the second lamp, the wireless power receiver receiving power transmitted from the wireless power transmitter, And a controller for controlling the lamp control device. In this case, the control unit may control the power supply from the first power receiving unit to the first lamp based on the magnitude of the power received by the first power receiving unit. In addition, the firmware may control power supply from the second power receiver to the second lamp based on the magnitude of the power received by the second power receiver.

When the magnitude of the power received by the first power receiving unit is greater than the first reference power set for the first lamp, the control unit starts power supply from the first power receiving unit to the first lamp And the power supply from the first power receiving unit to the first lamp may be cut off when the magnitude of the power received by the first power receiving unit is smaller than the first reference power.

When the magnitude of the power received by the second power receiving unit is greater than a second reference power set for the second lamp, the control unit starts power supply from the second power receiving unit to the second lamp And the power supply from the second power receiving unit to the second lamp is cut off when the magnitude of the power received by the second power receiving unit is smaller than the second reference power.

In addition, the wireless power transmitter and the wireless power receiver can wirelessly transmit and receive power using a magnetic resonance method.

The apparatus may further include a first case for accommodating the wireless power transmitter and a second case separate from the first case and accommodating the wireless power receiver and the control unit.

Further, the first case and the second case may be mounted at different positions of the vehicle so as to be spaced apart from each other.

The wireless power transmitter may further include a third power transmitter for wirelessly transmitting power for driving the third lamp and a fourth power transmitter for wirelessly transmitting power for driving the fourth lamp. In this case, the wireless power receiver may further include a third power receiving unit electrically connected to the third lamp, and a fourth power receiving unit electrically connected to the fourth lamp.

When the magnitude of the power received by the third power receiving unit is greater than the third reference power set for the third lamp, the control unit starts power supply from the third power receiving unit to the third lamp And the power supply from the third power receiving unit to the third lamp is cut off when the magnitude of the power received by the third power receiving unit is smaller than the third reference power.

When the magnitude of the power received by the fourth power receiving unit is greater than a fourth reference power set for the fourth lamp, the control unit starts power supply from the fourth power receiving unit to the second lamp And may cut off power supply from the fourth power receiving unit to the fourth lamp when the magnitude of the power received by the fourth power receiving unit is smaller than the fourth reference power.

The first lamp to the fourth lamp may be any one of a braking lamp, a tail lamp, a reverse lamp, and a turn signal lamp. In this case, any one of the first to fourth lamps may be of a different kind from the others.

According to at least one of the embodiments of the present invention, the power required for driving the lamp is wirelessly transmitted and received, so that the lamp and the fastening structure are simplified compared with a conventional method of supplying electric power in a wired manner, .

Further, according to at least one of the embodiments of the present invention, when the plurality of lamps are controlled individually, the power supply to the specific one of the plurality of lamps is started or stopped based on the magnitude of the power received via the radio. By disconnection, it is possible to individually turn on and off the plurality of lamps without any separate communication means.

Further, according to at least one of the embodiments of the present invention, by starting power supply to the plurality of lamps only when the power received by the wireless power receiver meets a certain condition, It is possible to prevent power transmission. Thus, the heat generation of the wireless power transmitter can be reduced, and the efficiency in wireless power transmission can be improved.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

FIG. 1 shows a schematic block diagram of a vehicle lamp control apparatus according to an embodiment of the present invention.
Fig. 2 shows a detailed block diagram of the vehicle lamp control device shown in Fig. 1. Fig.
FIG. 3 shows an example of a malfunction that may occur when the supply of power from the wireless power receiver to the illumination unit is started regardless of the magnitude of the received power in the vehicular lamp control apparatus according to the embodiment of the present invention.
FIG. 4A is a flowchart illustrating an operation method of a wireless power transmitter according to an exemplary embodiment of the present invention, FIG. 4B is a flowchart illustrating a method of operating a wireless power receiver according to an exemplary embodiment of the present invention, FIG. Which is referred to in explaining the lighting condition for each lamp in the illustrated method.
5 shows an example of the operation of the vehicle lamp control apparatus according to the embodiment of the present invention to remove the malfunction problem shown in FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals are used to designate identical or similar elements, and redundant description thereof will be omitted. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role. In the following description of the embodiments of the present invention, a detailed description of related arts will be omitted when it is determined that the gist of the embodiments disclosed herein may be blurred. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. , ≪ / RTI > equivalents, and alternatives.

Terms including ordinals, such as first, second, etc., may be used to describe various elements, but the elements are not limited to these terms. The terms are used only for the purpose of distinguishing one component from another.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The singular expressions include plural expressions unless the context clearly dictates otherwise.

In the present application, the terms "comprises", "having", and the like are used to specify that a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

1 shows a schematic block diagram of a vehicle lamp control apparatus 100 according to an embodiment of the present invention.

Referring to FIG. 1, the lamp control apparatus 100 may include an illumination unit 10, a wireless power transmitter 110, a wireless power receiver 120, and a controller 130. The illumination unit 10 may include a plurality of lamps 10-1 to 10-n. Where n is an integer greater than one. That is, the lamp control device 100 may include at least two lamps.

Each lamp may include at least one light source. For example, the light source is not particularly limited as long as it can convert electrical energy such as LED (Light Emitting Diode), OLED (Organic Light Emitting Diode), and LD (Laser Diode) into light. The lighting unit 10 may be electrically connected to the wireless power receiver 120 and may serve as an electrical load that consumes the power supplied from the wireless power receiver 120 when a certain condition is met.

The wireless power transmitter 110 may transmit power wirelessly to the wireless power receiver 120. [ The power transmitted wirelessly by the wireless power transmitter 110 may be for driving one or more than one lamps 10-1 to 10-n mounted on the vehicle at the same time. In this case, as shown, the wireless power transmitter 110 can wirelessly transmit a plurality of powers (P-1 to P-n) by different power sources sequentially or simultaneously.

The wireless power receiver 120 can receive or transmit power wirelessly transmitted by the wireless power transmitter 110, and the wireless connection between the plurality of lamps 10-1 through 10- . Further, according to a predetermined condition, at least a part of the received power can be supplied to at least one of the plurality of lamps 10-1 to 10-n.

In this case, the wireless power transmitter 110 and the wireless power receiver 120 can wirelessly transmit and receive power using either the magnetic induction method or the magnetic resonance method.

The controller 130 may be coupled to the wireless power receiver 120 to control the wireless power receiver 120. [ Specifically, the control unit 130 controls the power supply from the wireless power receiver 120 to the plurality of lamps 10-1 to 10-n based on the magnitude of the power received by the wireless power receiver 120, As shown in FIG.

Fig. 2 shows a detailed block diagram of the vehicular lamp control apparatus 100 shown in Fig. For convenience of explanation, it is assumed that the lamp control device 100 includes four different kinds of lamps 10-1 to 10-4.

Referring to FIG. 2, the wireless power transmitter 110 may include a plurality of transmission coils 110-1 to 110-4 and a plurality of transmission units 111 to 114. Each transmission unit may be referred to as a 'power transmission unit'. In this case, the number of the transmission coils 110-1 to 110-4 and the transmission units 111 to 114 may be the same as the number of the lamps included in the lamp control device 100. [ If there are four lamps as in the home, the number of each of the transmitting coil and the transmitting part may also be four. However, the present invention is not limited thereto. The first to fourth transmission units 111 to 114 may be spaced apart from each other by a predetermined distance.

The wireless power transmitter 110 may be connected to the battery 210 and the interface unit 220 provided in the vehicle. The battery 210 may provide the first to fourth transmitters 111 to 114 with electrical energy required for power transmission. The interface unit 220 provides a wake-up signal to the wireless power transmitter 110 instructing to drive each of the plurality of lamps 10-1 to 10-4.

For example, assume that the first to fourth lamps 10-1 to 10-4 are a brake light, a tail light, a reverse light, and a turn signal light in order.

If the brake pedal is depressed, the interface unit 220 may provide a first wake-up signal to the first transmission unit 111 instructing to drive the brake light 10-1. The first transmitting unit 111 may wirelessly transmit the first power P-1 through the first transmitting coil 110-1 in response to the first wake-up signal.

If the headlight is turned on, the interface unit 220 may provide a second wake-up signal to the second transmission unit 112 instructing driving of the taillight 10-2. The second transmitting unit 112 may wirelessly transmit the second power P-2 through the second transmitting coil 110-2 in response to the second wake-up signal.

If the transmission lever is placed in the reverse position ('R'), the interface 220 may provide a third wake-up signal to the third transmitter 113, which commands a drive of the reverse light 10-3 have. The third transmitting unit 113 can wirelessly transmit the third power P-3 through the third transmitting coil 110-3 in response to the third wake-up signal.

If the direction indication lever is placed in the left position or the right position, the interface unit 220 may provide the fourth transmitter 114 with a fourth wake-up signal instructing driving of the turn signal lamp 10-4 . The fourth transmitting unit 114 can wirelessly transmit the fourth power P-4 through the fourth transmitting coil 110-4 in response to the fourth wake-up signal.

The wireless power receiver 120 may include a plurality of receiving coils 120-1 to 120-4 and a plurality of receiving units 121 to 124. Each transmitter may be termed a 'power receiver'. In this case, the number of each of the receiving coil and the receiving unit may be the same as the number of the lamps included in the lamp control device 100. As in the assumption, if there are four lamps, the number of each of the receiving coil and the receiving part may also be four. However, the present invention is not limited thereto. The first to fourth receiving units 121 to 124 may be spaced apart from each other by a predetermined distance.

The first to fourth reception coils 120-1 to 120-4 may be spaced apart from each other by a predetermined distance so as to face the first to fourth transmission coils 110-1 to 110-4.

The first to fourth receiving units 121 to 124 may be connected to the first to fourth lamps 10-1 to 10-4 by wire in order. The power received through the first to fourth receiving coils 120-1 to 120-4 may be transmitted to the first to fourth receiving units 121 to 124, respectively.

The control unit 130 is connected to the first to fourth receiving units 121 to 124 individually and controls the first to fourth receiving units 121 to 124 based on the magnitude of the power received by the first to fourth receiving units 121 to 124, It is possible to determine whether each of the lamps 10-1 to 10-4 is driven. The controller 130 may include at least one hardware computing device such as an MCU (Micro Controller Unit).

Specifically, the control unit 130 may include a power measuring unit 131, a comparing unit 132, and a switching unit 133.

The power measuring unit 131 measures the magnitude of the power received by the first to fourth receiving units 121 to 124, respectively.

The comparing unit 132 compares the measured power with respect to each of the first to fourth receiving units 121 to 124 to determine the magnitude by comparing the measured first to fourth reference powers. For example, the first to fourth reference powers may correspond to the proper driving powers of the first to fourth lamps 10-1 to 10-4 in order. A more detailed description of the reference power will be given later with reference to Fig. 4C.

The switching unit 133 supplies power from the first to fourth receivers 121 to 124 to the first to fourth lamps 10-1 to 10-4 based on the comparison result of the comparison unit 132 Respectively. For example, the switching unit 133 may include: i) a first switch connected between the first receiving unit 121 and the first lamp 10-1; ii) a second switch connected between the second receiving unit 122 and the second lamp 10-2; Iii) a third switch connected between the third receiving part 123 and the third lamp 10-3; and iv) a third switch connected between the fourth receiving part 124 and the fourth lamp 10-4. And a fourth switch connected between the first switch and the second switch.

If the magnitude of the power received by the first receiving unit 121 is smaller than the first reference power, the switching unit 133 opens the first switch and outputs the first power from the first receiving unit 121 to the first lamp 10-1 Can be cut off. On the other hand, when the magnitude of the power received by the first receiving unit 121 is greater than the first reference power, the switching unit 133 closes the first switch, and the first lamp 10-1 ) Can be started.

If the magnitude of the power received by the second receiving unit 122 is smaller than the second reference power, the switching unit 133 opens the second switch and the second lamp 10-2 Can be cut off. On the other hand, when the magnitude of the power received by the second receiving unit 122 is greater than the second reference power, the switching unit 133 closes the second switch, ) Can be started. Each of the switches may include an electric element such as a transistor.

If the magnitude of the power received by the third receiving unit 123 is smaller than the third reference power, the switching unit 133 opens the third switch and the third receiving unit 123 receives the third lamp 10-3 Can be cut off. On the other hand, when the magnitude of the power received by the third receiving unit 123 is greater than the third reference power, the switching unit 133 closes the third switch, and the third lamp 10-3 ) Can be started.

If the magnitude of the power received by the fourth receiving unit 124 is smaller than the fourth reference power, the switching unit 133 opens the fourth switch and outputs the fourth signal from the fourth receiving unit 124 to the fourth lamp 10-4 Can be cut off. On the other hand, when the magnitude of the power received by the fourth receiving unit 124 is larger than the fourth reference power, the switching unit 133 closes the fourth switch, and the fourth lamp 10-4 ) Can be started.

In this case, each of the switches may include at least one switching element such as a triac, a thyristor, or a transistor.

Meanwhile, the lamp control device 100 may include a first case C1 and a second case C2. The first case C1 may receive the wireless power transmitter 110. [ The second case C2 is separated from the first case C1 and can accommodate the wireless power receiver 120 and the control unit 130. [ The first case C1 and / or the second case C2 may be embodied in a completely sealed form so that the components accommodated therein are isolated from the outside. For example, the first case C1 and the second case C2 may be mounted at different positions of the vehicle so as to be spaced apart from each other within a range where wireless power can be transmitted and received.

At least a part of each of the first case C1 and the second case C2 may be made of a material through which power can be transmitted and received wirelessly.

2 and the following description, it is assumed that the first to fourth lamps 10-1 to 10-4 are a brake light, a tail light, a back light, and a turn signal lamp, respectively, but the present invention is not limited thereto, do.

FIG. 3 is a block diagram illustrating a lamp control apparatus 100 for a vehicle according to an embodiment of the present invention. In FIG. 3, As shown in FIG. That is, FIG. 3 illustrates a malfunction in which a lamp (lamp to be maintained in the unlit state) that does not correspond to the wake-up signal is switched to the lit state by the power supplied from the receiver connected thereto.

Referring to FIG. 3, the wireless power transmitter 110 selectively drives a specific transmission unit corresponding to a wakeup signal provided from the interface unit 220 to transmit power wirelessly.

For example, if only a second wake-up signal (described with reference to FIG. 2) is provided from the interface 220, the wireless power transmitter 110 may only drive the second transmitter 112. As the second transmission unit 112 is driven, the second power P-2 may be transmitted wirelessly through the second transmission coil 110-2.

As described above, the second power P-2 may be transmitted to drive (i.e., turn on) only the second lamp 10-2. However, due to the nature of wireless power transmission, the power transmitted over the air can be in the form of electromagnetic waves, where electromagnetic waves are radiated toward the wireless power receiver 120 spaced from the wireless power transmitter 110, Only a part of the transmitted power can reach the target receiving section 122. [

Referring to the figure, a portion of the second power P-2 transmitted from the second transmit coil 110-2 is received by the second receive coil 120-2, but the remaining portion is lost during transmission, May be received by at least one of the first receiving coil 120-1, the third receiving coil 120-3 and the fourth receiving coil 120-4.

For example, when the second power P-2 transmitted from the second transmission coil 110-2 is 9W, assuming that there is no power to be lost in the space during transmission, the second reception coil 120-2 Only 6W of power can be received, and 1.5W of power can be received by the first receiving coil 120-1 and the third receiving coil 120-3, respectively.

Accordingly, the power of 6 W received by the second transmission coil 110-2 is supplied to the second lamp 10-2 through the second receiving unit 120, and the second lamp 10-2 is turned on .

However, if the electrical connection between the first receiving unit 121 and the first lamp 10-1 and the electrical connection between the second receiving unit 122 and the second lamp 10-2 are enabled, The first receiving coil 120-1 and the third receiving coil 120-3 can be connected to each other without any power transmitted by the first transmitting coil 110-1 and the third transmitting coil 110-3, The first lamp 10-1 and the third lamp 10-3 may also be turned on by a power of 1.5 W received by each of them.

That is, when the first lamp 10-1 is the brake light, the brake light can be turned on even if the driver does not step on the brake pedal. If the third lamp 10-3 is in the reverse state, 'R'), the backlight may be turned on.

Accordingly, erroneous information due to the lighting of the first lamp 10-1 and the third lamp 10-3 is displayed on the outside, and the risk of an accident can be increased. Also, since the first lamp 10-1 and the third lamp 10-3 are unnecessarily turned on, the lifetime can be shortened. In addition, not only the second lamp 10-2 but also the first lamp 10-1 and the third lamp 10-3 function as electrical loads for the second transmitter 112, The second transmission unit 112 transmits additional power unnecessarily due to an increase in the load impedance of the power supply unit 112. As a result, not only the efficiency of power transmission is reduced but also the heat generation is severe.

3, the second power (P-2) transmitted by the second transmitter 112 is used as a reference, but it is apparent to those skilled in the art that the same problem may be caused by the power transmitted by another transmitter.

4 and 5, a method for solving the lamp malfunction problem according to the wireless power transmission described above with reference to FIG. 3 will be described.

FIG. 4A is a flowchart illustrating a method of operating a wireless power transmitter 110 according to an exemplary embodiment of the present invention. FIG. 4B is a flowchart illustrating a method of operating a wireless power receiver 120 according to an exemplary embodiment of the present invention. FIG. 4C is a diagram referred to explain the lighting condition for each lamp in the method shown in FIG. 4B. FIG.

Referring to FIG. 4A, the first transmitter 111 of the wireless power transmitter 110 waits for a first wake-up signal (S411). The first wake-up signal may be a signal provided from the interface unit 220 when the brake pedal is depressed.

Next, the first transmitting unit 111 determines whether a first wake-up signal has been received (S412). For example, when the state of the signal provided from the interface unit 220 is switched from the low level to the high level, the first transmitting unit 111 can determine that the first wake-up signal is received.

Next, the first transmitting unit 111 can wirelessly transmit the first power P-1 through the first transmitting coil 110-1 (S413). In this case, the first power P-1 may be a power of a predetermined magnitude for driving the first lamp 10-1.

Then, the first transmitting unit 111 may determine whether the first wake-up signal is terminated (S414). For example, when the brake pedal is returned to a position where the brake pedal is not depressed, the state of the signal provided from the interface unit 220 can be switched from the high level to the low level, It can be determined that the process has ended.

If the first wake-up signal is maintained, the first transmitting unit 111 can transmit the first power P-1 continuously or periodically through the first transmitting coil 110-1.

4A, the remaining transmitters 112 to 114 are also configured to transmit the second to fourth powers P-2 to P-4 in the same manner as that of the first transmitter 111, To P-4) may be transmitted separately.

Referring to FIG. 4B, the controller 130 may determine whether the first receiving unit 121 has received power through the first receiving coil 120-1 (S421). For example, the control unit 130 controls the first receiving unit 121 based on a change in voltage or current corresponding to the power rectified by the first receiving unit 121 after being received by the first receiving coil 120-1. Lt; RTI ID = 0.0 > power. ≪ / RTI > In this case, the power received through the first receiving coil 120-1 may be power that is wirelessly transmitted by at least one of the first to fourth transmitting units 111 to 114. [ On the other hand, before step S421, the power supply from the wireless power receiver 120 to the illumination unit 10 may be all disabled.

Next, the control unit 130 measures the power received by the first receiving unit 121 (S422). Specifically, the power measuring unit 131 included in the control unit 130 is connected to all the transmitting units 111 to 114 included in the wireless power transmitter 110, and separately measures the power received by each transmitting unit .

Meanwhile, the controller 130 may store a data table 430 as shown in FIG. 4C. As shown in the figure, the data table 430 stores the first to fourth proper driving powers and / or the first to fourth reference powers corresponding to the first to fourth lamps 10-1 to 10-4, Data may be included. Specifically, the optimum driving powers of the first to fourth lamps 10-1 to 10-4 may be 12W, 7W, 10W and 10W in order. At this time, the appropriate driving power may be a value set from the time of shipment according to the specification for each lamp.

Further, each of the reference powers may be set according to the corresponding appropriate driving power. For example, the reference power may have a magnitude corresponding to 80% of the optimum drive power. For example, 9.6 W corresponding to 80% of 12 W which is the first appropriate driving power for the first lamp 10-1 may be set as the first reference power. The second reference power to the fourth reference power for each of the second to fourth lamps 10-2 to 10-4 may be set to the same reference.

Then, the controller 130 may determine whether the measured power is greater than the first reference power. Specifically, the comparing unit 132 compares the magnitude of the measured power with respect to the first receiving unit 121 and determines a magnitude of each other by comparing the first reference power.

If the measured power is smaller than the first reference power, the controller 130 may return to step S422. In this case, the electrical connection between the first receiving part 121 and the first lamp 10-1 is cut off by the switching part 133 so that the electric power is supplied from the first receiving part 121 to the first lamp 10-1 The disabled state can be maintained. Accordingly, the first lamp 10-1 may be in a state in which the load impedance of the first transmitter 111 is not increased.

If the magnitude of the measured power is greater than the first reference power, the controller 130 may enable power supply from the first receiving unit 121 to the first lamp 10-1 (S424 ). For example, the switching unit 133 closes the first switch, whose both ends are connected between the first receiving unit 121 and the first lamp 10-1, so that the power received by the first receiving unit 121 becomes the first And to be supplied to the lamp 10-1. Thus, the first lamp 10-1 can be turned on.

4B, the remaining reception units 122 to 124 are also connected to the second to fourth lamps 10-2 to 12-4 in the same manner as the first reception unit 121. However, To 10-4 may be enabled or disabled.

5 shows an example of the operation of the vehicular lamp control apparatus 100 according to the embodiment of the present invention to remove the malfunction problem shown in FIG.

Similar to FIG. 3, FIG. 5 illustrates that the second power P-2 is transmitted wirelessly via the second transmit coil 110-2. In this case, there may be no power transmitted through the first transmission coil 110-1, the second transmission coil 110-3, and the fourth transmission coil 110-4.

A portion of the second power P-2 may be received by the second receive coil 120-2, a portion thereof may be lost during the transmission process, and the remainder may be received by the first receive coil 120-1 and the second receive coil 120-2. 3 receive coil 120-3.

For convenience of explanation, it is assumed that the powers received by the first to third receiving coils 120-1 to 120-3 are 1,5W, 6W, and 1.5W, respectively.

Referring to FIG. 4C, the controller 130 can measure the magnitude of the power received by the first receiving unit 121 through the first receiving coil 120-1, and outputs the first reference power of 9.6 W Can be compared. Since the power received by the first receiving unit 121 is 1.5 W smaller than the first reference power of 9.6 W, the controller 130 cuts off the power supply from the first receiving unit 121 to the first lamp 10-1 disable). Accordingly, unlike FIG. 3, the first lamp 10-1 can maintain a state of being turned off before and after the transmission of the second power P-2.

At the same time, the controller 130 can measure the magnitude of the power received by the second receiving unit 122 through the second receiving coil 120-2, and compare the magnitude of the power to the second reference power of 5.6W. The power received from the second receiving unit 122 is 6W larger than the first reference power of 5.6W so that the controller 130 can start supplying power from the second receiving unit 122 to the second lamp 10-2 )can do. 3, the second lamp 10-2 can be turned on in accordance with the transmission of the second power P-2.

Also, the controller 130 can measure the magnitude of the power received by the third receiving unit 123 through the third receiving coil 120-3 and compare it with the third reference power of 8W. The power received from the third receiving unit 123 is 1.5W which is smaller than the third reference power 8W and thus the control unit 130 disables the power supply from the third receiving unit 123 to the third lamp 10-3 )can do. Accordingly, unlike FIG. 3, the third ramp 10-3 can remain off before and after the transmission of the second power P-2.

That is, it is possible to reduce the problem of shortening the lifetime due to unnecessary lighting of the first lamp 10-1 and the third lamp 10-3. In addition, since the first lamp 10-1 and the third lamp 10-3 do not act as electrical loads to the second transmitter 112, the load impedance of the second transmitter 112 is not unnecessarily increased The second transmitting unit 112 transmits only the power required to turn on only the second lamp 10-2. As a result, the efficiency of the power transmission is improved and the technical effect of lowering the heat generation can be provided .

The controller 130 controls the switch to form an electrical connection between the first and third receiving units 121 and 123 and the second lamp 10-2 so that the first and third The power supply from the receivers 121 and 123 to the second lamp 10-2 may be started.

Referring to FIG. 5, the lamp control device 100 determines, based on the comparison result of the measured value of the power received by each of the first to fourth receiving units 121 to 124 with the first to fourth reference voltages, 1 to the fourth lamps 10-1 to 10-4 can be individually shut off or started.

Accordingly, even if the power transmitted from the wireless power transmitter 110 wirelessly interferes with the receiving unit other than the target specific receiving unit, the wakeup signal input from the interface unit 220 to the wireless power transmitter 110 It is possible to precisely drive only a specific lamp.

Meanwhile, the method for controlling a vehicle lamp according to the present invention can be implemented as a code that can be read by a processor on a recording medium readable by a processor included in a lamp controller for a vehicle. The processor-readable recording medium includes all kinds of recording apparatuses in which data that can be read by the processor is stored. Examples of the recording medium readable by the processor include a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like, and also a carrier wave such as transmission over the Internet. In addition, the processor readable recording medium may be distributed over networked computer systems so that code readable by the processor in a distributed manner can be stored and executed.

It is to be understood that the present invention is not limited to these embodiments, and all elements constituting the embodiment of the present invention described above are described as being combined or operated in one operation. That is, within the scope of the present invention, all of the components may be selectively coupled to one or more of them.

Furthermore, all terms including technical or scientific terms have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined in the Detailed Description. Commonly used terms, such as predefined terms, should be interpreted to be consistent with the contextual meanings of the related art, and are not to be construed as ideal or overly formal, unless expressly defined to the contrary.

It will be apparent to those skilled in the art that various modifications, substitutions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. will be. Therefore, the embodiments disclosed in the present invention and the accompanying drawings are intended to illustrate and not to limit the technical spirit of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings . The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

100: Lamp control device
10:
110: Wireless power transmitter
120: Wireless power receiver
130:

Claims (10)

A wireless power transmitter including a first power transmitter for wirelessly transmitting power for driving the first lamp and a second power transmitter for wirelessly transmitting power for driving the second lamp;
A wireless power receiver for receiving power transmitted from the wireless power transmitter, the wireless power receiver comprising: a first power receiving unit electrically connected to the first lamp; and a second power receiving unit electrically connected to the second lamp. And
And a controller for controlling the wireless power receiver,
Wherein,
Controls power supply from the first power receiver to the first lamp based on the magnitude of the power received by the first power receiver,
And controls power supply from the second power receiving unit to the second lamp based on a magnitude of the power received by the second power receiving unit. The method according to claim 1,
Wherein,
When the magnitude of the power received by the first power receiving unit is greater than the first reference power set for the first lamp, the power supply from the first power receiving unit to the first lamp is started,
And stops power supply to the first lamp from the first power receiving unit when the magnitude of the power received by the first power receiving unit is smaller than the first reference power. The method according to claim 1,
Wherein,
When the magnitude of the power received by the second power receiving unit is greater than the second reference power set for the second lamp, the power supply from the second power receiving unit to the second lamp is started,
And disconnects the power supply from the second power receiver to the second lamp when the magnitude of the power received by the second power receiver is smaller than the second reference power. The method according to claim 1,
The wireless power transmitter and the wireless power receiver comprising:
A vehicle lamp control apparatus for wirelessly transmitting and receiving electric power using a magnetic resonance method. The method according to claim 1,
A first case for receiving the wireless power transmitter; And
And a second case separated from the first case and accommodating the wireless power receiver and the control unit. 6. The method of claim 5,
Wherein the first case and the second case are mounted at different positions of the vehicle so as to be spaced apart from each other. The method according to claim 1,
The wireless power transmitter comprising:
A third power transmitter for wirelessly transmitting power for driving the third lamp, and a fourth power transmitter for wirelessly transmitting power for driving the fourth lamp,
The wireless power receiver comprising:
Further comprising: a third power receiving unit electrically connected to the third lamp; and a fourth power receiving unit electrically connected to the fourth lamp. 8. The method of claim 7,
Wherein,
When the magnitude of the power received by the third power receiving unit is larger than the third reference power set for the third lamp, the power supply from the third power receiving unit to the third lamp is started,
And disconnects the power supply from the third power receiving unit to the third lamp when the magnitude of the power received by the third power receiving unit is smaller than the third reference power. 8. The method of claim 7,
Wherein,
When the magnitude of the power received by the fourth power receiving unit is larger than the fourth reference power set for the fourth lamp, the power supply from the fourth power receiving unit to the second lamp is started,
And cuts off power supply from the fourth power receiving unit to the fourth lamp when the magnitude of the power received by the fourth power receiving unit is smaller than the fourth reference power. 8. The method of claim 7,
Each of the first to fourth lamps may be,
A brake light, a tail light, a back light, and a turn signal light,
Wherein one of the first lamp to the fourth lamp is of a different type from the rest.

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