JP4305297B2 - Vehicle lighting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an efficient lighting device for a vehicle by reducing dark current when the lighting device is switched off. <P>SOLUTION: This device is constituted of a lighting fixture 1 constituting a headlight of the vehicle, a vehicle height sensor 3 for detecting the height of the vehicle by detecting inclination of the vehicle, a vertical driving control part 6, and a power supply control part 20 for conducting/interrupting power supply to the lighting fixture 1 and the vertical driving control part 6. The lighting fixture 1 is constituted to store a HID lamp La mounted on a socket 7, a reflector 8 for reflecting light irradiated from the HID lamp La to the front, a vertical driving part 10 for making a shaft 10a mounted on a bracket 9 provided in a lower part of the reflector 8 perform an extending and contracting operation in the vertical direction and a ballast part 5 for turning on the HID lamp La within a housing 1a. The power supply control part 20 is provided with a lighting switch 2a for conducting/interrupting power supply to at least the ballast part 5. The conducting/interrupting of the power supply to the ballast part 5 and the conducting/interrupting of power supply to the vertical driving control part 6 are performed by substantially the same timing. <P>COPYRIGHT: (C)2006,JPO&amp;NCIPI

Description

  The present invention relates to a vehicle lighting device.

  FIG. 10 is a configuration diagram of a conventional vehicular lighting device, in which a lamp 101 that constitutes a headlight of a vehicle, and a lighting that conducts / cuts off power supply from the + voltage terminal B1 of a battery mounted on the vehicle to the lamp 101. It is a projector type that includes a switch 2a, a vehicle height sensor 3 that detects the height of the vehicle by detecting the inclination of the vehicle in various states of the vehicle, and a vertical drive control unit 6.

  The lamp 101 includes an HID lamp (high-intensity discharge lamp) La attached to the socket 7, a ballast unit 5 that supplies lighting power to the HID lamp La, and a reflector that reflects light emitted from the HID lamp La forward. 8 and a vertical drive unit 10 called a leveler equipped with a motor or the like that attaches a shaft 10a in a vertical direction to a bracket 9 provided at a lower part of the reflecting plate 8 and expands and contracts the shaft 10a in a vertical direction. It is stored in.

  The ballast unit 5 is supplied with power from the + voltage terminal B1 of the battery via the lighting switch 2a, converts the electric power from the + voltage terminal B1 into AC power suitable for lighting of the HID lamp La, and passes through the socket 7. The lamp is supplied to the HID lamp La and is turned on / off by the lighting switch 2a.

  The vertical drive control unit 6 disposed outside the lamp 101a operates with the electric power supplied from the + voltage terminal B2 of the battery, calculates the change amount of the vehicle height based on the vehicle height data of the vehicle height sensor 3, Based on the calculated amount of change in vehicle height, drive power is output to the vertical drive unit 10 to control the amount of expansion and contraction of the shaft 10a, and the height of the reflector 8 is adjusted to keep the vertical optical axis optimal. Therefore, the vertical optical axis of the lamp 101 can be optimally maintained even when the vehicle is tilted due to the load amount and position of heavy objects, the number of passengers, the boarding position, and the like.

Signal transmission from the vehicle height sensor 3 to the vertical drive control unit 6 uses a vehicle communication system such as CAN. Or the communication system for every vehicle type may be used. Here, the power supply to the vertical drive control unit 6 is made from the + voltage terminal B2 of the battery mounted on the vehicle, and the power supply from the + voltage terminal B2 is generally made after the engine is operated. It is. (For example, see Patent Document 1)
JP 2003-260980 A

  A motor is built in the vertical drive unit 10 of the vehicle lighting device shown in FIG. 10, and a DC motor, a stepping motor, or the like is used. In consideration of the weight of the reflecting plate 8, the moving speed, the starting torque, and the like, smooth driving according to the environment is required. Therefore, a certain amount of power is required for the motor, and the power of the vertical drive unit 10 is directly supplied from a dedicated power line (+ voltage terminal B2) provided separately from the lighting power line (+ voltage terminal B1). ing.

  The driving of the motor of the vertical drive unit 10 is carried out by grasping the load amount and position of heavy objects, the number of passengers and the position of the vehicle by the vehicle height data from the vehicle height sensor 3 when the engine at the start of operation is started. The vehicle travels by grasping the load amount and position of heavy objects and the number of passengers and boarding positions based on the static method of driving when the vehicle is stopped and the vehicle height data from the vehicle height sensor 3 during driving. In any case in FIG. 10, the motor drive current flows through the path of the positive voltage terminal B 2 → the vertical drive control unit 6 → the vertical drive unit 10.

  Since the vertical drive control unit 6 is always directly supplied with power from the + voltage terminal B2, the power is on regardless of whether the HID lamp La is turned on or off, and even when the HID lamp La is turned off. A dark current flows through the vertical drive control unit 6.

  Thus, even when the vertical drive control unit 6 is not operated, a dark current flows through the vertical drive control unit 6, which is inefficient when considering the fuel consumption of the vehicle.

  In addition, when the vertical drive control unit 6 is always connected to the positive voltage terminal B2, stress such as a surge voltage is frequently applied, so that a protection circuit against the surge voltage is necessary in consideration of reliability.

  This invention is made | formed in view of the said reason, The objective is to reduce the dark current at the time of light extinction, and to provide an efficient vehicle illuminating device.

According to the first aspect of the present invention, there is provided a lamp, a reflecting plate for reflecting light emitted from the lamp, a drive unit having a movable mechanism for moving the reflecting plate, a sensor for detecting a state of the vehicle, and detection of the sensor. A drive control unit that controls the drive unit according to a signal; a lamp lighting unit; a lighting switch that conducts / cuts off an input of the lighting unit; an on / off state detection unit of the lighting switch; and a detection result of the detection unit And a power switch that is turned on / off similarly to the lighting switch, and the drive control unit is supplied with power through the power switch that is turned on / off similarly to the lighting switch .

According to the present invention, by supplying power to the drive control unit only when the lamp is turned on, unnecessary dark current does not flow to the drive control unit when the lamp is turned off. It becomes the target. In addition, the frequency of stress such as surge voltage being applied to the drive control unit is low, realizing high reliability, and a protection circuit against the surge voltage can be simplified or omitted. Furthermore, a power supply means to the drive control unit can be specifically realized.

  According to a second aspect of the present invention, in the first aspect, the lamp is an HID lamp, the lighting means is a ballast section, and the drive control section supplies power from between the output side of the lighting switch and the ballast section. It is characterized by being.

According to this invention, the power supply means to the drive control unit can be specifically realized .

According to a third aspect of the present invention, there is provided a lamp, a reflecting plate for reflecting light emitted from the lamp, a drive unit having a movable mechanism for moving the reflecting plate, a sensor for detecting a state of the vehicle, and detection of the sensor. A drive control unit that controls the drive unit according to a signal; a lamp lighting unit; a power switch that conducts / cuts off a power input of the drive control unit; an on / off state detection unit of the power switch; and A lighting switch that turns on and off based on the detection result to turn on and off the input of the lighting means in the same manner as the power switch is provided.

  According to the present invention, when the lamp is turned on only when power is supplied to the drive control unit, unnecessary dark current does not flow to the drive control unit when the lamp is turned off. It becomes. In addition, the frequency of applying a stress such as a surge voltage to the drive control unit is low and high reliability is realized, and a protection circuit against the surge voltage can be simplified or omitted.

According to a fourth aspect of the present invention, in the first or third aspect, the driving unit moves the reflection plate in the vertical direction, and the drive control unit controls movement of the reflection plate in the vertical direction by the driving unit. It is characterized by.

  According to the present invention, the optical axis can be optimally maintained even when the vehicle height changes.

According to a fifth aspect of the present invention, in the first or third aspect, the driving unit moves the reflector in the vertical direction and the horizontal direction, and the drive control unit is configured to move the reflective plate in the vertical direction and the horizontal direction of the reflective plate. The drive unit and the drive control unit are housed in a lamp provided with an HID lamp and a reflector.

  According to the present invention, the optical axis can be optimally maintained even when the vehicle height changes, and the optical axis can be maintained in the traveling direction even when traveling on a curved road. Moreover, since it is not necessary to carry out wiring in the vehicle over a wide range, the configuration can be simplified and the assemblability can be improved, and the cost can be reduced.

The invention of claim 6 is characterized in that, in claim 4, the movement of the reflecting plate in the vertical direction is controlled using a microcomputer in the drive control unit.

  According to this invention, since the operation of the drive control unit is optimally performed by one microcomputer, an inexpensive device can be realized.

The invention of claim 7 is characterized in that, in claim 5, the movement of the reflector in the vertical direction and the horizontal direction is controlled by using a single microcomputer for the drive control unit.

  According to this invention, since the operation of the drive control unit is optimally performed by one microcomputer, an inexpensive device can be realized.

  As described above, the present invention has an effect that it is possible to provide an efficient vehicle lighting device by reducing the dark current when the light is turned off.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

( Basic configuration 1 )
FIG. 1 is a configuration diagram of a vehicular illumination device of the present basic configuration , and detects the height of a vehicle by detecting the tilt of the vehicle among various states of the lamp 1 constituting the vehicle headlight and the vehicle. It is a projector type composed of a vehicle height sensor 3, a vertical drive control unit 6, and a power supply control unit 20 that conducts and blocks power supply to the lamp 1 and the vertical drive control unit 6.

  The lamp 1 includes an HID lamp (high-intensity discharge lamp) La mounted on a socket 7, a reflection plate 8 that reflects light emitted from the HID lamp La forward, and a bracket 9 provided below the reflection plate 8. A shaft 10a is mounted in the vertical direction, and a vertical drive unit 10 called a leveler equipped with a motor or the like for extending and contracting the shaft 10a in the vertical direction and a ballast unit 5 for lighting the HID lamp La are accommodated in the housing 1a. ing.

  The ballast unit 5 is supplied with power from the positive voltage terminal B1 of the battery via the power control unit 20, converts the electric power from the positive voltage terminal B1 into AC power suitable for lighting of the HID lamp La, and passes through the socket 7. The HID lamp La is supplied to the HID lamp La and is turned on / off by the power supply controller 20.

  The vertical drive control unit 6 is supplied with power from the positive voltage terminal B1 of the battery via the power control unit 20, calculates the amount of change in vehicle height based on the vehicle height data of the vehicle height sensor 3, and calculates the calculated vehicle height. Based on the change amount, the drive power is output to the vertical drive unit 10 to control the expansion / contraction amount of the shaft 10a, and the height of the reflector 8 is adjusted to keep the vertical optical axis optimal. Accordingly, the vertical optical axis of the lamp 1 can be optimally maintained even when the vehicle is tilted due to the load amount and position of heavy objects, the number of passengers, the boarding position, and the like.

  The power supply control unit 20 includes a lighting switch 2a that conducts and cuts off the power supply to at least the ballast unit 5, and supplies power from the battery + voltage terminal B1 to the ballast unit 5 and the vertical drive control unit 6. The up / down drive control unit 6 is supplied with power through an electric circuit that is turned on / off by the on / off operation of the lighting switch 2a. Here, the optical axis adjustment operation is necessary when the HID lamp La is turned on, and the power of the vertical drive control unit 6 may be supplied when the HID lamp La is turned on. Therefore, the power supply control unit 20 performs conduction / cutoff of power supply to the ballast unit 5 and conduction / cutoff of power supply to the vertical drive control unit 6 at substantially the same timing, so that the HID lamp La is turned on. Only, power supply to the vertical drive control unit 6 is performed to enable optical axis adjustment.

  In addition, the power supply to the vertical drive unit 10 is performed via the vertical drive control unit 6, and the power supply to the vertical drive control unit 6 is also turned on and off, thereby supplying power to the vertical drive unit 10. Similarly, it is conducting and interrupting.

  In this way, the power supply control unit 20 supplies power to the vertical drive control unit 6 only when the HID lamp La is turned on, so that the + voltage terminal B1 and the vertical drive control unit 6 are connected when the HID lamp La is turned off. It is cut off, and unnecessary dark current does not flow through the vertical drive control unit 6, which is efficient in terms of fuel consumption of the vehicle.

  In addition, since the vertical drive control unit 6 is not always connected to the + voltage terminal B1, the frequency of stress such as surge voltage being applied is low and high reliability is achieved, and the protection circuit against the surge voltage is simplified or omitted. it can.

  FIG. 2 shows an example of a specific circuit of the power supply control unit 20, and the vertical drive control unit 6 between the output side of the lighting switch 2 a that conducts and shuts off the power supply to the ballast unit 5 and the ballast unit 5. The vertical drive unit 10 is supplied with drive power via the vertical drive control unit 6. According to this configuration, each power supply to the ballast unit 5 and the vertical drive control unit 6 can be conducted / cut off at the same timing in accordance with the on / off of the lighting switch 2a.

  The lamp 1 uses the HID lamp La, but other lamps such as a halogen lamp may be used.

( Reference Example 1 )
FIG. 3 shows an example of a specific circuit of the power supply control unit 20. The power supply control unit 20 includes a multi-contact (in this reference example , 2 contacts) lighting switch 2a having contacts 2b and 2c, and the contact 2b is connected to + The voltage terminal B1 is connected between the ballast unit 5 and the contact 2c is connected between the + voltage terminal B1 and the vertical drive control unit 6. Since the contacts 2b and 2c are similarly turned on and off by the on / off operation of the lighting switch 2a, the power supply to the ballast unit 5 is turned on and off, and the power supply to the vertical drive control unit 6 is turned on and off. The blocking can be performed at substantially the same timing, and the optical axis can be adjusted by supplying power to the vertical drive control unit 6 only when the HID lamp La is turned on.

Therefore, similarly to the basic configuration 1 , when the HID lamp La is turned off, the + voltage terminal B1 and the vertical drive control unit 6 are cut off, and unnecessary dark current does not flow through the vertical drive control unit 6, and the fuel consumption of the vehicle In view of the above, it is efficient, and the frequency with which stress such as surge voltage is applied is low, and high reliability is realized.

In addition, the same code | symbol is attached | subjected to the structure similar to the basic structure 1, and description is abbreviate | omitted.

( Embodiment 1 )
FIG. 4 shows an example of a specific circuit of the power supply control unit 20. The power supply control unit 20 includes a lighting switch 2a connected between the + voltage terminal B1 and the ballast unit 5, and an output side of the lighting switch 2a. A power source detection unit 2d connected between the negative voltage terminal B0 of the battery and a switch unit 2e including a power switch 2j connected between the positive voltage terminal B2 of the battery and the vertical drive control unit 6; .

  When the lighting switch 2a is turned on, the power supply detection unit 2d monitors changes in voltage, current, etc. on the output side of the lighting switch 2a, so that the power supply from the + voltage terminal B1 to the ballast unit 5 becomes conductive. Is detected and the power switch 2j is turned on. When the power switch 2j is turned on, the power supply from the + voltage terminal B2 to the vertical drive control unit 6 becomes conductive.

Therefore, similarly to the basic configuration 1 , when the HID lamp La is turned off, the + voltage terminal B1 and the vertical drive control unit 6 are cut off, and unnecessary dark current does not flow through the vertical drive control unit 6, and the fuel consumption of the vehicle In view of the above, it is efficient, and the frequency with which stress such as surge voltage is applied is low, and high reliability is realized.

  For example, the above-described configuration can be realized by using a relay exciting coil for the power supply detection unit 2d and using a relay contact for the power switch 2j.

In addition, the same code | symbol is attached | subjected to the structure similar to the basic structure 1, and description is abbreviate | omitted.

( Embodiment 2 )
FIG. 5 shows an example of a specific circuit of the power supply control unit 20. The power supply control unit 20 includes a switch unit 2f including a lighting switch 2a connected between the + voltage terminal B1 and the ballast unit 5; A switch unit 2g having a power switch 2h connected between the voltage terminal B2 and the vertical drive control unit 6, and a power detection unit connected between the output side of the power switch 2h and the negative voltage terminal B0 of the battery 2i.

  When the power switch 2h is turned on, the power detection unit 2i monitors changes in voltage, current, etc. on the output side of the power switch 2h, so that the power supply from the + voltage terminal B2 to the vertical drive control unit 6 becomes conductive. The lighting switch 2a is turned on. When the lighting switch 2a is turned on, the power supply from the + voltage terminal B1 to the ballast unit 5 becomes conductive, and the HID lamp La is lit.

Therefore, similarly to the basic configuration 1 , when the HID lamp La is turned off, the + voltage terminal B1 and the vertical drive control unit 6 are cut off, and unnecessary dark current does not flow through the vertical drive control unit 6, and the fuel consumption of the vehicle In view of the above, it is efficient, and the frequency with which stress such as surge voltage is applied is low, and high reliability is realized.

  For example, the above-described configuration can be realized by using a relay exciting coil for the power source detection unit 2i and a relay contact for the lighting switch 2a.

In addition, the same code | symbol is attached | subjected to the structure similar to the basic structure 1, and description is abbreviate | omitted.

( Basic configuration 2 )
Figure 6 is a block diagram of a vehicle lighting device of the present basic arrangement, the configuration of the basic structure 1, the state sensor 11, and the left and right drive control unit 12, which was provided with a left driving unit 13, the basic configuration 1 In addition to the vertical optical axis adjustment described above, the horizontal optical axis adjustment is also performed. In addition, the same code | symbol is attached | subjected to the structure similar to the basic structure 1, and description is abbreviate | omitted.

  The state sensor 11 detects the running state of the vehicle, for example, the steering angle of the steering wheel, the vehicle speed, and the like.

  The left / right drive unit 13 is housed in the lamp 1 and includes a motor or the like that rotates the shaft 13a by fixing the shaft 13a in the upper and lower directions on the upper part of the reflecting plate 8, and moves the optical axis of the lamp 1 left and right. The direction is variable.

  The left and right drive control unit 12 is disposed outside the lamp 1 and is supplied with power from the + voltage terminal B1 of the battery via the lighting switch 2a of the power control unit 20 in the same manner as the vertical drive unit 6, and the state of the state sensor 11 The steering angle and vehicle speed of the steering wheel are detected based on the data, the driving power is output to the left and right driving unit 13 based on the detected steering angle and vehicle speed of the steering wheel, and the amount of rotation of the shaft 13a is controlled. Adjust the left and right angle of the to keep the left and right optical axis optimal. A system that changes the optical axis of the HID lamp La in the lamp 1 in accordance with the traveling state and situation of the vehicle is called an adaptive illumination system (AFS). Therefore, for example, when running on a curved road with the HID lamp La lit at night, the reflector 8 rotates in the curved direction of the curved road based on the steering angle of the steering wheel, the vehicle speed, etc., and the visibility of the curved road Can improve the safety and drive safely.

The optical axis adjustment operation in the left-right direction is necessary when the HID lamp La is turned on, and the power sources of the left-right drive control unit 12 and the left-right drive unit 13 are also adjusted in the vertical direction as described in the basic configuration 1. Similar to the operation, it may be supplied when the HID lamp La is turned on. Therefore, in this basic configuration , when the lighting switch 2a is turned on, the LED lamp La is turned on via the ballast unit 5, and power is supplied to the vertical drive control unit 6 and the left / right drive control unit 12. The vertical drive control unit 6 and the left / right drive control unit 12 operate with the electric power from the ballast unit 5, and output the drive power to the vertical drive unit 10 and the left / right drive unit 13, respectively, to control the rotation amounts of the shafts 10 a, 13 a, respectively. Control. When the lighting switch 2a is turned off, the power supply to the vertical drive control unit 6 and the left / right drive control unit 12 is stopped, and the vertical drive unit 10 and the left / right drive unit 13 do not operate.

  Therefore, when the HID lamp La is turned off, the + voltage terminal B1, the vertical drive control unit 6 and the left and right drive control unit 12 are cut off, and unnecessary dark current flows through the vertical drive control unit 6 and the left and right drive control unit 12. However, it is efficient from the viewpoint of the fuel consumption of the vehicle, and the frequency with which stress such as surge voltage is applied is low, and high reliability is realized.

( Basic configuration 3 )
Figure 7 is a block diagram of a vehicle lighting device of the present basic structure accommodates a vertical drive controller 6 and the right and left drive control unit 12 of the configuration of the basic structure 2 in the lamp 1. Therefore, it is not necessary to route the wiring over a wide range in the vehicle, the configuration can be simplified and the assemblability can be improved, and the cost can be reduced. Furthermore, since the housing 1a of the lamp 1 has a waterproof structure, the structures of the vertical drive control unit 6 and the left / right drive control unit 12 accommodated in the housing 1a can be simplified.

In the first and second embodiments , the same effect as described above can be obtained if the vertical drive control unit 6 is housed in the lamp 1.

( Basic configuration 4 )
FIG. 8 shows a block configuration of the ballast unit 5 and the vertical drive control unit 6 of the basic configuration 1 .

  The ballast unit 5 is composed of a noise filter, a reverse connection protection diode, and the like, and is connected to a positive voltage terminal B1 of the battery via a lighting switch 2a, and an input voltage (for example, + 12V) from the positive voltage terminal B1. ) To generate a control power supply for the ballast control unit 5f, a DC / DC converter unit 5c that boosts and outputs the input voltage from the + voltage terminal B1 to a DC voltage of several hundred volts, and a boosted DC Ballast control for controlling a rectangular wave inverter unit 5d for converting a voltage into a rectangular wave, an igniter unit 5e for generating a high voltage pulse to start the HID lamp La, a DC / DC converter unit 5c and a rectangular wave inverter unit 5d Part 5f.

  The vertical drive control unit 6 is connected to the voltage terminal B1 via the lighting switch 2a, and includes a microcomputer 6a, a reception unit 6b, and a transmission unit 6c. The microcomputer 6a includes a CPU and its peripheral circuits. .

  When the lighting switch 2a is turned on, the ballast unit 5 and the vertical drive control unit 6 operate by being supplied with power from the voltage terminal B1, the ballast unit 5 lights the HID lamp La, and the vertical drive control unit 6 The microcomputer 6a receives the vehicle height data from the sensor 3 via the receiving unit 6b, and the microcomputer 6a calculates the optical axis adjustment amount based on the vehicle height data, and then moves the vertical drive unit 10 via the transmitting unit 6c. Drive to keep the vertical optical axis optimal.

  Therefore, since the drive control of the vertical drive unit 10 is performed using one microcomputer 6a, an inexpensive apparatus can be realized.

  In addition, if the optical axis is directed upward before lighting, there is a possibility of causing troubles such as dazzling to the oncoming vehicle immediately after lighting, so before turning on the lighting switch 2a or when turning off the lighting switch 2a The vertical drive control unit 6 and the vertical drive unit 10 may be driven to move the vertical optical axis downward.

( Basic configuration 5 )
In FIG. 9, the vertical drive control unit 6 and the left / right drive control unit 12 of the basic configuration 2 are integrated as an optical axis control unit 14, and the optical axis control unit 14 is connected to the voltage terminal B1 via the lighting switch 2a. The microcomputer 14a, the receivers 14b and 14d, and the transmitters 14c and 14e are connected. The microcomputer 14a includes a CPU and its peripheral circuits.

Similarly to the basic configuration 4 , the ballast unit 5 includes an input unit 5a, a power supply unit 5b, a DC / DC converter unit 5c, a rectangular wave inverter unit 5d, an igniter unit 5e, and a ballast control unit 5f.

  When the lighting switch 2a is turned on, the ballast unit 5 and the optical axis control unit 14 operate by being supplied with power from the voltage terminal B1, the ballast unit 5 lights the HID lamp La, and the optical axis control unit 14 The microcomputer 14a receives the vehicle height data from the sensor 3 and the state data from the state sensor 11 via the receivers 14b and 14d, and the microcomputer 14a calculates the optical axis adjustment amount based on the vehicle height data and the state data. Thereafter, the vertical drive unit 10 and the left and right drive unit 13 are driven via the transmission units 14c and 14e to keep the optical axes in the vertical direction and the horizontal direction optimally.

  Therefore, since the drive control of the vertical drive unit 10 and the horizontal drive unit 13 is performed using one microcomputer 14a, an inexpensive device can be realized.

  In addition, if the ballast control unit 5f is optimally controlled by exchanging signals between the microcomputer 14a and the ballast control unit 5f, the HID lamp La can be lit stably.

It is a block diagram which shows the illuminating device for vehicles of the basic composition 1 of this invention. It is a block diagram which shows a power supply control part same as the above. It is a block diagram which shows the power supply control part of the reference example 1 of this invention. It is a block diagram which shows the power supply control part of Embodiment 1 of this invention. It is a block diagram which shows the power supply control part of Embodiment 2 of this invention. It is a block diagram which shows the illuminating device for vehicles of the basic composition 2 of this invention. It is a block diagram which shows the illuminating device for vehicles of the basic composition 3 of this invention. It is a block block diagram which shows the ballast part and up-down drive control part of the basic composition 4 of this invention. It is a block block diagram which shows the ballast part and optical-axis control part of the basic composition 5 of this invention. It is a block diagram which shows the conventional vehicle illuminating device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lamp 2a Lighting switch 3 Vehicle height sensor 5 Ballast part 6 Vertical drive control part 7 Socket 8 Reflector 9 Bracket 10 Vertical drive part 20 Power supply control part La HID lamp

Claims (7)

A lamp, a reflector that reflects light emitted from the lamp, a drive unit having a movable mechanism that moves the reflector, a sensor that detects the state of the vehicle, and a drive unit that is controlled by a detection signal of the sensor Same as the lighting switch based on the detection result of the drive control unit, the lighting means of the lamp, the lighting switch that conducts / cuts off the input of the lighting means, the on / off state detection means of the lighting switch And a power switch that is turned on and off , and the drive control unit is powered through a power switch that is turned on and off in the same manner as the lighting switch . The said lamp | ramp is an HID lamp, the said lighting means is a ballast part, and the said drive control part is supplied with power from between the output side of the said lighting switch, and a ballast part. Vehicle lighting device. A lamp, a reflector that reflects light emitted from the lamp, a drive unit having a movable mechanism that moves the reflector, a sensor that detects the state of the vehicle, and a drive unit that is controlled by a detection signal of the sensor A drive control unit; a lamp lighting unit; a power switch that conducts / cuts off a power input of the drive control unit; an on / off state detection unit of the power switch; and a power switch based on a detection result of the detection unit And a lighting switch that turns on and off to turn on and off the input of the lighting means. 4. The vehicle illumination according to claim 1, wherein the driving unit moves the reflecting plate in the vertical direction, and the drive control unit controls movement of the reflecting plate in the vertical direction by the driving unit. 5. apparatus. The drive unit moves the reflector in the vertical direction and the horizontal direction, and the drive control unit controls the vertical and horizontal movements of the reflector by the drive unit, and the drive unit and the drive control unit, 4. The vehicle lighting device according to claim 1, wherein the vehicle lighting device is housed in a lamp provided with an HID lamp and a reflector. The vehicular lighting device according to claim 4, wherein the drive control unit uses a microcomputer to control the vertical movement of the reflecting plate. 6. The vehicular lighting device according to claim 5, wherein the drive control unit is configured to control the vertical and horizontal movements of the reflector using a single microcomputer.

Images