KR0149630B1 - Reading lamp regulator of a car - Google Patents

Abstract

1. The technical field to which the invention described in the claims belongs:

Illumination control device and method for reading cars

2. The technical problem the invention is trying to solve:

In the car, each seat can be read by a personal reading light, the reading light can be adjusted in the corresponding seat, and the driver's seat can be adjusted for other seats.

3. Summary of the Solution of the Invention:

A personal reading light is installed for each seat in the car, and a reading light button for turning on the reading light is installed on the upper window arm of the car door. In addition, according to the needs of the person in the seat, the reading light on / off and the illumination control is carried out by pressing the reading light button continuously. In addition, in the driver's seat, press the light selection button to turn on / off and adjust the illumination of reading lights corresponding to other seats.

4. Important uses of the invention:

Passenger car reading light

Description

Illumination control device and method for reading cars

1 is a view showing the position of the reading light when looking at the ceiling inside the passenger car according to an embodiment of the present invention.

2 is a block diagram of a reading light device for a passenger car according to an embodiment of the present invention.

3 is a detailed circuit diagram of illuminance controllers 44 in FIG.

4 is a view showing the position of the button for adjusting the illumination light on / off and illumination.

5a to 5b is a control flow diagram according to an embodiment of the present invention.

FIG. 6 is a flowchart for performing a step 206 of FIG. 5A, that is, turning on / off the reading light and dimming subroutine in the driver's seat.

7 is a view showing another embodiment of a passenger car reading light device according to an embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

2,4,6,8,10: reading light 12: indoor light

58,62,64,66,68: Reading light button

The present invention relates to a passenger car, and more particularly, to a reading light illuminance control device and method for adjusting the illuminance of a reading light installed for each seat to read in each seat in the car.

In general, there is a lighting device in the car to brighten the interior of the car when it is dark. This lighting device is commonly referred to as indoor lighting. Such interior lights are useful when a user finds an object in a vehicle, manipulates indoor equipment in a vehicle, or performs a map or reading light in the vehicle. The interior light is usually located in the center of the roof ceiling of the car or near the room mirror of the front seat. But currently used interior lights are not bright enough for the person in each seat to read. If you raise the level of illumination enough to read indoor lights, it may interfere with the driver's driving. It also presses on other passengers who do not want to read. Therefore, the present invention seeks to solve these problems and to implement lighting devices that perform other useful functions.

Therefore, an object of the present invention is to provide a reading light illuminance control device that is installed in each seat so that the reading light is installed to read in each seat in the car.

It is another object of the present invention to provide a reading light dimming control device and method for allowing a person sitting in the seat to control the lighting / lighting and dimming of the reading light in the car.

It is still another object of the present invention to provide a reading light dimming control device and method for allowing a person sitting in a driver's seat to control lighting / lighting out and illuminating all reading lights in a passenger car.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the same components or the same parts in the drawings are denoted by the same reference numerals or the same reference signs wherever possible.

First, Figure 1 is a view showing the position of the reading light when looking at the ceiling inside the passenger car according to the present invention. Reference numerals 2, 4, 6, 8, and 10 are reading lights. Reading lights 2 and 4 in the front seats are installed on the driver's seat and next to the passenger car roof ceiling. There is a sun visor 16 in front of the reading lamp 2 and a handle 20 next to it. And in front of the reading light 4 there is a sun visor 18 and the handle 22 next to it. The reading lights 6, 8 and 10 in the rear seats are installed side by side between the rear handles 24 and 26. Reading lamps 6 and 10 are reading lamps for both seats and reading lamp 8 is the middle seat reading lamp. All reading lights 6, 8, and 10 are covered with a rectangular window board 14. The aesthetic window plate 14 is preferably approximately horizontal to the surface of the car roof, so that each corner is curved. The pane 14 is transparent or translucent. On the other hand, when the boarding person turns on the reading light, it should not damage the driver or the other person, so the reading lights 2, 4, 6, 8, and 10 are designed to illuminate the readable area of each seat. Has That is, the reading lamps are covered with a small lampshade or a device shaped to perform its function.

2 is a block diagram of a reading light device for a passenger car according to the present invention. A switching unit 32 and an illuminance control unit 44 are positioned between the power supply unit 30 that supplies power to the reading lights 2, 4, 6, 8, and 10 and the reading lights 2, 4, 6, 8, and 10. The switching unit 32 is connected to the power supply unit 30 and is composed of switches 34, 36, 38, 40, and 42 corresponding to the reading lights 2, 4, 6, 8, and 10. As an embodiment of the present invention, since there are five reading lights, there are five switches of the switching unit 32. Each of the switches 34, 36, 38, 40, and 42 of the switching unit 32 is turned on and off by the switch control signals SW1 to 5 of the control unit 70. The illuminance control unit 44 includes the illuminance controllers 46, 48, 50, 52, and 54 respectively connected to the switches 34, 36, 38, and 40 of the switching unit 32, respectively. Light outputs 46, 48, 50, 52 and 54 are connected to reading lights 2, 4, 6, 8 and 10 respectively. The illuminance control unit 44 adjusts the voltage of the power supplied through the switching unit 32 by the illuminance control selection signals SEL1 to 5 applied from the control unit 70. Illumination of the reading light is adjusted by adjusting the voltage of the power supply.

Specific circuits of the illuminance controllers 46, 48, 50, 52, and 54 constituting the illuminance controller 44 are shown in FIG. Referring to FIG. 3, the illuminance controller includes a multiplexer 88, resistors 80, 82, 84 connected to the input terminals A, B, and C of the multiplexer 88, and ground 86 connected to the input terminal D, respectively. Comparing the resistance values of the resistors 80, 82, and 84, 80 is the highest, followed by 82, 84 in that order. Therefore, the input terminal A connected to the resistor 80 receives the lowest level voltage, the input terminal B connected to the resistor 82 applies the medium level voltage, and the input terminal C connected to the resistor 84 applies the highest level voltage. The input terminal D of the multiplexer 88 receives a ground level voltage. Therefore, when the input stage A of the multiplexer 88 is selected by the control unit 70 of FIG. 2, the reading lamp of the rear stage is turned on at low level of illumination, and when the input stage B is selected, the reading lamp of the rear stage is lit at the middle stage of illumination and the input stage C is When selected, the rear reading lamp lights up at a high level of illuminance. If the input stage D is selected, the rear reading lamp is turned off.

Returning to FIG. 2 again, the operation of the controller 70 will be described. The control unit 70 applies the switching control signals SW1 to SW5 to the switching unit 32 and the illuminance adjustment selection signals SEL1 to SEL5 to the illuminance control unit 44 based on the pressing of the reading light buttons installed in the window arm of the passenger car. Control flow diagrams of the control unit 70 for performing such an operation are shown in FIGS. 5A to 5B and 6.

In FIG. 2, the reading light buttons 58 to 68 are switches for turning on and off the reading lights 2, 4, 6, 8 and 10, respectively. These reading light buttons are installed on the window arm attached to the car door shown in FIG. It should be noted that the passenger car door of FIG. 4 is the driver's side door. Referring to FIG. 4, an upper portion of the window arm 90 under the window includes an operation panel 92 which may be provided with a window opening / closing button, a door locking button, and the like. In the enlarged picture of the operation panel 92, the reading light button 58 according to the present invention is provided in front of the window opening / closing button and the door locking button 96. In addition to the reading light button 58, all the light selection buttons for turning on / off all the lights are provided together (the light selection buttons are not shown in FIGS. 2 and 4 but should be understood as being together). Since the car door of FIG. 4 is the driver's seat, the back selection button 60 is specially provided. In addition to the driver's side door shown in FIG. 4, the remaining three passenger car doors have the same structure as that of FIG. 4, and the reading light buttons are provided (but the back selection button 60 is located only at the driver's side). The middle seat reading light button may be provided at the upper portion of the window arm 90 of the rear door of one of the passenger car doors. Alternatively, it may be provided at the rear of the parking brake housing.

Referring back to FIG. 4, it can be seen that the light selecting button 60 is further provided on the window arm of the driver's car door to select a predetermined reading light. The light selection button 60 is installed in the driver's car door in order to allow a person in the driver's seat to adjust the lighting / lighting off / illumination of reading lights 4, 6, 8, and 10 corresponding to each seat.

By matching the position of the reading light buttons 58, 62, 64, 66, 68 and the light selection button 60 of FIG. 2 with the reading lights 2, 4, 6, 8, 10 of FIG. 1 corresponding to the reading light buttons In summary, it is as follows. A reading light button 58 and a light selection button 60 in the block 56 are installed at the driver's seat door and the reading light button 58 corresponds to the reading light 2. Reading light button 62 is installed in the front right car door and corresponds to reading light 4. The reading light button 64 is installed at the rear left door and corresponds to the reading light 6. The reading light button 66 may be installed at either of the two rear doors and may be installed at the rear of the parking brake housing. The reading light button 68 is installed at the rear right door and corresponds to the reading light 10.

5A to 5B are control flow charts according to the present invention, and FIG. 6 is a flow chart of step 206 of FIG. 5A, that is, reading light on / off and dimming subroutine performance in the driver's seat.

The operation of the present invention will now be described in more detail based on the above configuration.

First, a person riding in a car will explain an operation of turning on / off or dimming a reading light in the seat. As an example, the operation of operating the corresponding reading light 2 when a person sits in the driver's seat will be described.

Referring to FIG. 2, the person sitting in the driver's seat presses only the reading light button 58 on the driver's car door side. Then, the controller 70 recognizes this in step 200 of FIG. 5A. The controller 70 proceeds to step 202 of FIG. 5A and determines whether the pressed button is the driver's seat reading light button 58. If the pressed button is the driver's seat reading light button 58, go to step 204; otherwise, go to step 210. Therefore, since the pressed button was the driver's seat reading light button 58, the controller 70 proceeds to step 204 to determine whether the back selection button 60 has been pressed. If the equal selection button 60 is not pressed, step 208 is performed. If the light selection button 60 is pressed, the control unit 70 proceeds to step 206 to perform the reading light on / off and illumination control subroutine in the driver's seat. Reading light on / off and dimming subroutines will be described later in detail with reference to FIG.

Since the person sitting in the driver's seat did not press the back selection button 60, the control unit 70 proceeds to step 208 to turn on the corresponding switch of the switching unit 32, and controls the corresponding illuminance control unit of the illuminance control unit 44 to be selected in one step illumination adjustment. . More specifically, referring to FIG. 2, the controller 70 controls the switching control signal SW1 to be on because the driver's seat reading light button 58 is applied. As a result, switch 34 is turned on. Then, the power supply voltage of the power supply unit 30 is applied to the light control regulator 46 of the light control unit 44 through the switch 34. The controller 70 applies the illuminance adjustment selection signal SEL1 to the illuminance controller 46, and the illuminance adjustment selection signal SEL1 is applied to perform one-step illumination adjustment. Referring to FIG. 3, the multiplexer 88 selects an input terminal A based on the illumination control selection signal SEL1. Then, the power supply voltage applied to the illuminance regulator 46 is outputted because the power supply voltage is most down by the resistor 80 having the highest resistance value. The reading lamp 2, which illuminates the driver's seat, illuminates at the lowest light level.

In this state, if the driver seated in the driver's seat presses the corresponding reading light button 58 again (presses twice), the controller 70 recognizes this in step 210 of FIG. 5 and proceeds to step 212 to perform two-step illumination adjustment selection. That is, the controller 70 applies the illumination control selection signal SEL1 to the illumination controller 46 so that the input terminal B (FIG. 3) is selected. Then, the power supply voltage applied to the illuminance regulator 46 is outputted with the power supply voltage being down halfway by the resistance 82 having the intermediate resistance value. The reading lamp 2, which illuminates the driver's seat, emits light at a medium level of illumination.

In this state, when the driver's seat is seated again, the corresponding reading light button 58 is pressed again (pressing 3 times), the controller 70 recognizes this in step 214 of FIG. 5a and proceeds to step 216 to perform step 3 illuminance adjustment selection. That is, the controller 70 applies the illumination control selection signal SEL1 to the illumination controller 46 so that the input terminal C (FIG. 3) is selected. Then, the power supply voltage applied to the illuminance regulator 46 is outputted with the lowest supply voltage by the resistance 84 having the smallest resistance value. The reading lights 2, which illuminate the driver's seat, illuminate at the highest level of illuminance.

In this state, when the driver's seat is pressed again, the corresponding reading light button 58 is pressed again (press 4 times), the control unit 70 recognizes this in step 218 of FIG. 5 and proceeds to step 220 to select the 0 level illumination control and the corresponding switch. 'Off'. That is, the controller 70 applies the illuminance adjustment selection signal SEL1 to the illuminance controller 46 so that the voltage of the ground level is output so that the input terminal D (3rd degree) is selected. The switching control signal SW1 is applied to the switching unit 32 so that the switch 34 is 'off'. As a result, the reading lamp 2 illuminating the driver's seat goes out.

Subsequently, when the driver's seat reading light button 58 is applied, the control unit 70 recognizes this in step 222 of FIG. 5A, and returns to step 208 of FIG. 5A and performs the steps therefrom. That is, when the reading light button 58 is pressed continuously, the reading light is turned on and the reading light is maintained at the first level of illuminance → the reading light is maintained at the second level of illumination → the reading light is maintained at the third level of illumination → the reading light is turned off.

The above-described example has been described with respect to the on / off and illuminance control of the driver's seat reading light 2. The description of this example applies equally to the reading lights of other seats in the passenger vehicle, that is, reading lights 4, 6, 8, 10, and the like.

On the other hand, when the reading light button and the light selection button are both pressed together (pressing once) in step 200 of FIG. 5A, the control unit 70 determines this in step 230 of FIG. 5B and proceeds to step 232 of FIG. 5B. In step 232, the control unit 70 turns on all the switches 34, 36, 38, 40, and 42 in the switch unit 32. And all the light adjusters 46, 48, 50, 52, 54 of the light control unit 44 controls to select the level 1 light control. As a result, all reading lights 2, 4, 6, 8, and 10 illuminate at the lowest illuminance. Then, if both the reading light and the like selection button is pressed together (2 times), the control unit 70 determines this in step 234 of FIG. 5B and proceeds to step 236. In step 236, the controller 70 controls all of the illuminance controllers 46, 48, 50, 52, and 54 of the illuminance controller 44 to select the two-stage illuminance control state. As a result, all reading lamps 2, 4, 6, 8, and 10 emit light at intermediate levels of illumination. Then, if both the reading light and the like selection button is pressed together (3 times), the control unit 70 determines this in step 238 of FIG. 5B and proceeds to step 240. In step 240, the control unit 70 controls all of the light intensity controllers 46, 48, 50, 52, and 54 of the light intensity controller 44 to select the three-level light intensity control state. As a result, all reading lights 2, 4, 6, 8, and 10 illuminate at the highest level of illuminance. Then, when both the reading light and the light selection button are pressed together (4 times), the control unit 70 determines this in step 242 of FIG. 5B and proceeds to step 244. In step 244, the control unit 70 controls all of the roughness controllers 46, 48, 50, 52, and 54 of the roughness controller 44 to select the zero-level illuminance control state. And all the switches 34, 36, 38, 40, 42 of the switch part 32 are turned off. As a result, all reading lights 2, 4, 6, 8 and 10 go out.

If both the reading light and the like selection button is pressed together, the control unit 70 determines this in step 246 of FIG. 5B and returns to step 232 described above to perform the corresponding step therefrom. However, if the reading light button and the back mode selection button are not pressed again in step 246, the process ends. When the steps 230 to 246 of FIG. 5B are summarized, when the person riding in the car keeps pressing the reading light button and the light selection button together, all the reading lights 2, 4, 6, 8, and 10 are turned on at the same time. It is to repeat illumination control and turn off.

Next, the person sitting in the driver's seat of the car will explain the operation of turning on / off or dimming the reading lights of each seat. That is, the operation of performing subroutine 206 in FIG. 5A will be described.

If the person sitting in the driver's seat wants to remotely control the reading lights 4, 6, 8, and 10 in the front, next, left and middle seats, press the corresponding light selection button 60. The controller 70 recognizes the operation through steps 200, 202, and 204 of FIG. 5A, and performs the reading light on / off and illuminance control subroutine in the driver's seat in step 206. FIG. The specific control flow diagram of the subroutine is FIG.

Referring to FIG. 6, the control unit 70 turns on the corresponding switch of the switching unit 32 corresponding to the corresponding light selection button in step 300 and controls the corresponding illumination controller of the illumination control unit 44. The back selection button can be implemented as one. In this case, the reading light is selected through the input frequency of the back selection button. In addition, the light selection button may be implemented in a number corresponding to the reading lights 4, 6, 8, 10 other than the driver's seat reading light, in this case, press the button corresponding to the light selection.

Thereafter, in steps 306 to 318, the controller 70 controls the lighting / lighting off and illuminance of the selected predetermined reading light in response to the number of times the driver's seat reading light button 58 is pressed.

Specifically, when the driver's seat reading light button 58 is pressed (pressed once), the control unit 70 causes the corresponding illuminance controller, which is selected, to be selected as the first stage illuminance control state (steps 302 to 304). The reading lamp thus selected emits light at the lowest level of illuminance. When the driver's seat reading light button 58 is pressed again (2 times), the control unit 70 causes the corresponding light selector to be selected as the two-stage illuminance control state. (Steps 306-308). The reading lamp thus selected emits light at an intermediate level of illuminance. Thereafter, when the driver's seat reading light button 58 is pressed again (3 times), the control unit 70 causes the corresponding illumination controller to be selected as the three-step illumination control state (steps 310 to 312). The reading lamp thus selected emits light at the highest level of illuminance. Then, when the driver's seat reading light button 58 is pressed again (4 times), the control unit 70 causes the correspondingly selected illuminance controller to be selected as the 0-level illuminance control state and 'off' the corresponding switch of the switching unit 32 (314). ~ 316 steps). Accordingly, the selected reading lamp is turned off.

If the driver's seat reading light button 58 is pressed again, the controller 70 determines this in step 318 and returns to step 304 to perform the steps therefrom. If the driver reading light button 58 is not pressed, the controller 70 determines this in step 318 and proceeds to step 320. In step 320, the controller 70 determines whether the light selection button 60 for selecting another light is pressed. If the light selection button 60 is pressed, the control unit 70 returns to step 300 to perform the steps therefrom again. However, if the back selection button 60 for another back selection is not pressed, the process ends.

7 is a view showing another embodiment of a passenger car reading light device according to the present invention. Referring to FIG. 7, sensing sensors 72 are further added to the rear end of the reading light buttons 56, 62, 64, 66, 68 and the light selection button 60. In this case, the reading light buttons 56, 62, 64, 66, 68 and the light selection button 60 according to FIG. 7 are implemented as touch buttons. The same embodiment of FIG. 7 allows the reading light to be turned on / off and dimming even if the person riding in the car touches the reading button.

In addition, in the present invention, if the detection sensor is attached to the reading light, it can be used without the reading light buttons as shown in FIG. At this time, the reading light may be turned on / off and illumination control only by touching the reading light, which is obvious to those skilled in the art.

The present invention as described above has the advantage that it is possible to read in each seat because a reading light is installed for each seat in the car. In addition, the person sitting in the seat can be controlled to turn on / off and illuminance of the corresponding reading light, and also has the advantage of turning on / off and illuminating the desired reading light of the person sitting in the driver's seat.

In the above description of the present invention has been described with respect to specific embodiments such as the position and number of reading lights on the roof ceiling of the car, the step of adjusting the illumination of the reading light, the position of the button of the reading light, but not departing from the spirit of the present invention. The embodiment is capable of various modifications and variations. Therefore, the present invention should not be defined by the specific embodiments described, but should be defined by the equivalents of the claims to be described below and the claims.

Claims (7)

A reading light illuminance control device for a passenger car, comprising: reading lights installed on a roof ceiling of a passenger car on each seat and illuminating a readable area at each seat; a power supply unit for supplying power to the reading light; and in the passenger car. Reading light buttons which are respectively installed on the window arm and which the seat occupant can press to adjust the illumination of the lighting / lighting off and the reading light, and supply the power supplied from the power supply unit to the corresponding reading light based on a predetermined switching control. A switching unit for shutting off, a reading lamp illumination adjusting unit for adjusting a power supply voltage applied through the switched-on predetermined switch on the switching unit based on a predetermined illumination control selection control, and supplying the reading to the corresponding reading lamp; In response to the pressing of a predetermined reading light button, the switch is selected such that a predetermined switch of the switching unit corresponding thereto is selected. Referred to parts of the control, and wherein the reading light of the button press, such as reading illumination, characterized in that the parts composed of a control unit for controlling the reading lamp dimming in response to a load control device. According to claim 1, wherein the illuminance control unit is a plurality of output voltage levels corresponding to the plurality of output voltage levels corresponding to the plurality of power supply voltages applied from the switching unit based on a different resistance value, respectively, The illumination light adjusting device of claim 1, further comprising a multiplexer for selectively outputting one voltage level in response to the illumination control selection signal. According to claim 2, Among the reading light buttons, the reading light button corresponding to the rear seat center seat is a reading light dimming device, characterized in that installed on the rear of the parking brake housing. It is installed on the roof ceiling of each car on each seat, and it is installed on each of the window arms in the car with a reading light that illuminates the reading area of each seat, and the passengers of the seat are turned on / off and light control. A method for adjusting the illumination of a reading light of a corresponding seat in a reading light device of a passenger car comprising a reading light button that can be pressed for a corresponding seat, in response to the pressing of the reading light button of the corresponding seat And a second process of controlling power supply to the reading light of the reading light and a second process of selecting illuminance of the selected reading light in response to the reading light button being pressed again. 5. The method of claim 4, wherein the second process includes controlling a lighting of the reading light and maintaining the illuminance of the reading at a low level in response to the reading of the reading light button once. A second step of controlling the illumination of the reading light to a medium level in response to being pressed once; and a third step of controlling the illumination of the reading light to a high level in response to the pressing of the reading light button three times And a fourth step of turning off the reading light in response to the reading light button being pressed four times, and if the reading light button is pressed again after the fourth step, performing the first to fourth steps. And a fifth step of performing again. 5. The method of claim 4, wherein the second process further comprises selecting on / off and dimming of all the reading lights in response to the pressing of a predetermined reading light button. The driver's seat reading light button according to claim 4, wherein the second process includes controlling the lighting of the selected reading light and maintaining the illuminance of the reading light at a low level in response to the driver's seat reading light button being pressed once. A second step of controlling the illumination of the selected reading light to an intermediate level in response to the two pressings; and the illumination of the selected reading light to a high level in response to pressing the driver's seat reading light button three times. A third step of maintaining the control, a fourth step of turning off the selected reading light in response to the driver's seat reading button being pressed four times, and after the fourth step, the driver's seat reading light button is pressed again. And a fifth step of performing the first step to the fourth step again.