WO2015170403A1 - Vehicular head lamp device - Google Patents

Vehicular head lamp device Download PDF

Info

Publication number
WO2015170403A1
WO2015170403A1 PCT/JP2014/062483 JP2014062483W WO2015170403A1 WO 2015170403 A1 WO2015170403 A1 WO 2015170403A1 JP 2014062483 W JP2014062483 W JP 2014062483W WO 2015170403 A1 WO2015170403 A1 WO 2015170403A1
Authority
WO
WIPO (PCT)
Prior art keywords
lamp unit
beam light
adb
distribution pattern
light source
Prior art date
Application number
PCT/JP2014/062483
Other languages
French (fr)
Japanese (ja)
Inventor
岡本　智博
Original Assignee
市光工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 市光工業株式会社 filed Critical 市光工業株式会社
Priority to PCT/JP2014/062483 priority Critical patent/WO2015170403A1/en
Publication of WO2015170403A1 publication Critical patent/WO2015170403A1/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/14—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means

Definitions

  • the present invention relates to a vehicle headlamp device that can be switched to a plurality of light distribution patterns corresponding to a target vehicle ahead.
  • the conventional vehicle headlamp device described above may cause eyestrain to the driver because the light distribution pattern is switched at a time without any temporal change.
  • the problem to be solved by the present invention is that the conventional vehicle headlamp apparatus may give eyestrain to the driver.
  • a low beam lamp unit that irradiates the front of the vehicle with a low beam light distribution pattern
  • a high beam lamp unit that irradiates the front of the vehicle with a high beam light distribution pattern
  • an ADB beam light distribution pattern an ADB beam light distribution pattern
  • An ADB beam lamp unit that irradiates the front of the vehicle, a detection unit that detects a target vehicle ahead and outputs a detection signal, and a low beam lamp unit, a high beam lamp unit, and an ADB beam lamp unit based on the detection signal from the detection unit
  • a control unit that outputs a control signal to the control unit, and the control unit performs on / off control of at least one of the low beam lamp unit, the high beam lamp unit, and the ADB beam lamp unit with a temporal change. It is characterized by performing light control.
  • the present invention is a high beam lamp unit, or an ADB beam lamp unit, or a dimming off time of the high beam lamp unit and the ADB beam lamp unit. Alternatively, it is shorter than the dimming lighting time of the high beam lamp unit and the ADB beam lamp unit.
  • This invention (the invention according to claim 3) is characterized in that the dimming turn-off time of the high beam lamp unit is shorter than the dimming turn-on time of the ADB beam lamp unit.
  • the low beam lamp unit, the high beam lamp unit, and the ADB beam lamp unit turns off the dimming light with time change.
  • the brightness (luminance, illuminance, luminance, light quantity) of the low beam distribution pattern, high beam distribution pattern, and ADB beam distribution pattern may be gradually increased (gradual increase) or gradually decreased (gradual decrease). Because it can, it does not give eyestrain to the driver.
  • FIG. 1 shows a first embodiment of a vehicle headlamp device according to the present invention, and is a plan view of a vehicle equipped with left and right vehicle headlamps.
  • FIG. 2 is a front view showing main components of the right vehicle headlamp.
  • FIG. 3 is a block diagram showing components of the vehicle headlamp device.
  • FIG. 4 is an explanatory diagram showing a dimming point lighting state of the high beam lamp unit, the ADB beam lamp unit, and the low beam lamp unit.
  • FIG. 5 is an explanatory diagram showing a high beam light distribution pattern, an ADB beam light distribution pattern, and a low beam light distribution pattern emitted from the left and right vehicle headlamps.
  • FIG. 4 is an explanatory diagram showing a dimming point lighting state of the high beam lamp unit, the ADB beam lamp unit, and the low beam lamp unit.
  • FIG. 5 is an explanatory diagram showing a high beam light distribution pattern, an ADB beam light distribution pattern, and a low beam light distribution pattern emitted from the left and
  • FIG. 6 is an explanatory diagram showing an ADB beam light distribution pattern and a low beam light distribution pattern irradiated when the target vehicle is detected.
  • FIG. 7 is an explanatory diagram showing a high beam light distribution pattern, an ADB beam light distribution pattern, and a low beam light distribution pattern that are emitted when the target vehicle is detected.
  • FIG. 8 is an explanatory diagram showing a high beam light distribution pattern and a low beam light distribution pattern that are emitted when the target vehicle is not detected.
  • FIG. 9 is an explanatory diagram of the dimming / lighting-off state of the high beam lamp unit, the ADB beam lamp unit, and the low beam lamp unit, showing Embodiment 2 of the vehicle headlamp device according to the present invention.
  • FIG. 10 is an explanatory diagram of the dimming / lighting-off state of the high beam lamp unit, the ADB beam lamp unit, and the low beam lamp unit, showing Embodiment 3 of the vehicle headlamp device according to the present invention.
  • the vertical axis indicates the dimming / lighting state of the high beam lamp unit, the ADB beam lamp unit, and the low beam lamp unit
  • the horizontal axis indicates the time
  • the thick solid line indicates the light is off.
  • reference numeral “VU-VD” indicates vertical lines on the upper and lower sides of the screen.
  • the symbol “HL-HR” indicates a horizontal line on the left and right of the screen.
  • front, rear, upper, lower, left, and right are front, rear, upper, lower, left, and right when the vehicle headlamp device according to the present invention is mounted on a vehicle.
  • the vehicle headlamp device includes vehicle headlamps 1 ⁇ / b> L and 1 ⁇ / b> R, a detection unit 7, and a control unit 8.
  • vehicle headlamps 1L, 1R are, for example, headlamps and are mounted on both left and right ends of the front portion of the vehicle C for left-hand traffic.
  • the right vehicle headlamp 1R mounted on the right side of the vehicle C will be described.
  • the left vehicle headlamp 1L mounted on the left side of the vehicle C has substantially the same configuration as the right vehicle headlamp 1R, and a description thereof will be omitted.
  • the vehicle headlamp 1R (1L) includes a first lamp unit (passing beam irradiation unit) 2 as a low beam lamp unit and a second lamp unit as a high beam lamp unit. (Running beam irradiating unit) 3, a third lamp unit (ADB beam irradiating unit) 4 as an ADB (variable) beam lamp unit, a lamp housing 5, and a lamp lens (for example, a plain outer lens)
  • the first mounting member 51 and the second mounting member (bracket) 52, the optical axis adjusting devices 53, 54, and 55, and the rotating mechanism (swiveling device) 6 are provided.
  • the first lamp unit 2, the second lamp unit 3, the third lamp unit 4, the first mounting member 51, the second mounting member 52, the optical axis adjusting devices 53, 54, 55, and the rotating mechanism 6 is disposed in a lamp chamber 50 defined by the lamp housing 5 and the lamp lens.
  • a lamp chamber 50 defined by the lamp housing 5 and the lamp lens.
  • other lamp units such as a fog lamp, a cornering lamp, a clearance lamp, a turn signal lamp, and an overhead sign lamp may be arranged.
  • the first lamp unit 2 and the second lamp unit 3 are attached to the second attachment member 52.
  • the optical axis (not shown) of the first lamp unit 2 and the optical axis (not shown) of the second lamp unit 3 are fixed, and the front direction of the vehicle C (axial direction, traveling direction, diagram) 1 parallel to or substantially parallel to the one-dot chain line in FIG.
  • the third lamp unit 4 is attached to the second attachment member 52 via the first attachment member 51 and the rotation mechanism 6.
  • the optical axis (not shown) of the third lamp unit 4 is moved from the front direction of the vehicle C to the outside of the vehicle C (right side in the case of the right vehicle headlamp 1R) by the rotating mechanism 6. Rotate within a range up to a predetermined angle (for example, about 15 °) of the left side vehicle headlamp 1L.
  • the first lamp unit 2 is disposed outside the vehicle C.
  • the second lamp unit 3 is disposed inside the vehicle C (on the left side in the case of the right vehicle headlamp 1R, on the right side in the case of the left vehicle headlamp 1L).
  • the third lamp unit 4 is disposed between the first lamp unit 2 and the second lamp unit 3.
  • the third lamp unit 4 may be arranged inside and outside the first lamp unit 2, or may be arranged inside and outside the second lamp unit 3, or the first lamp unit 3
  • the first lamp unit 2 and the second lamp unit 3 may be arranged on the upper side or the lower side.
  • the first lamp unit 2 is a projector type lamp unit.
  • the first lamp unit 2 includes a low beam light source, a reflector, a projection lens, a shade, a heat sink member, and a holder.
  • the low beam light source is a semiconductor light source, and a self-luminous semiconductor light source such as an LED, an OEL, or an OLED (organic EL) is used.
  • the low beam light source performs dimming / light extinction with a temporal change based on a control signal output from the control unit 8.
  • the first lamp unit 2 emits a low beam light distribution pattern (passing beam light distribution pattern) LP forward of the vehicle C as shown in FIG. 5D by turning on the low beam light source. .
  • the low beam light distribution patterns LP emitted from the left and right vehicle headlamps 1L and 1R are common.
  • the low-beam light distribution pattern LP includes an upper horizontal cutoff line on the left traveling lane side, a lower horizontal cutoff line on the right opposite lane side, and a central oblique cutoff line.
  • the low beam light distribution pattern LP may include an oblique cut-off line on the left traveling lane side and a horizontal cut-off line on the right opposite lane side in addition to the Z cut-off line.
  • the low beam light distribution pattern LP mainly illuminates the front side of the left traveling lane and the right opposite lane by diffusing over a wide range.
  • the second lamp unit 3 is a projector type lamp unit.
  • the second lamp unit 3 includes a high beam light source, a reflector, a projection lens, a shade, a heat sink member, and a holder.
  • the high beam light source is a semiconductor light source, and a self-luminous semiconductor light source such as an LED, an OEL, or an OLED (organic EL) is used.
  • the high-beam light source performs dimming / light-off with time change based on a control signal output from the control unit 8.
  • the second lamp unit 3 emits a high beam light distribution pattern (traveling beam light distribution pattern) HP to the front of the vehicle C as shown in FIG. 5A by turning on the high beam light source. .
  • the high beam light distribution patterns HP emitted from the left and right vehicle headlamps 1L and 1R are common.
  • the high beam light distribution pattern HP has a horizontal cut-off line on the lower side.
  • the lower part of the high beam light distribution pattern HP and the upper part of the low beam light distribution pattern LP overlap each other.
  • the high beam light distribution pattern HP mainly illuminates the far side of the left traveling lane and the right opposite lane by diffusing over a wide range.
  • the third lamp unit 4 is a projector type lamp unit.
  • the third lamp unit 4 includes an ADB beam light source, a reflector, a projection lens, a shade, a heat sink member, and a holder.
  • the ADB beam light source is a semiconductor light source, and uses a self-luminous semiconductor light source such as an LED, an OEL, or an OLED (organic EL).
  • the ADB beam light source performs dimming on / off with time change based on a control signal output from the control unit 8.
  • the third lamp unit 4 converts the ADB beam light distribution patterns (ADB beam light distribution patterns) LSP and RSP into the vehicle C as shown in FIGS. It irradiates in front of.
  • the ADB beam light distribution pattern RSP irradiated from the right vehicle headlamp 1R is exclusively for the right side
  • the ADB beam light distribution pattern LSP irradiated from the left vehicle headlamp 1L is , For left side only.
  • the right ADB beam distribution pattern RSP has a left vertical cut-off line and a lower horizontal cut-off line.
  • the left ADB beam distribution pattern LSP has a right vertical cutoff line and a lower horizontal cutoff line.
  • the ADB beam light distribution pattern RSP on the right side and the ADB beam light distribution pattern LSP on the left side are substantially bilaterally symmetric (horizontal inversion).
  • a light distribution pattern having substantially the same shape as the high beam light distribution pattern HP is obtained.
  • the lower portions of the left and right ADB beam light distribution patterns LSP and RSP overlap the upper portion of the low beam light distribution pattern LP.
  • the ADB beam distribution pattern RSP on the right side mainly illuminates by diffusing the sides (road shoulders, etc.) of the opposite lane on the right side over a wide range.
  • the ADB beam distribution pattern LSP on the left side mainly illuminates by diffusing the side of the left traveling lane (road shoulder, etc.) over a wide range.
  • optical axis adjusting devices 53, 54, 55 include a pivot mechanism (53), vertical adjustment screws and screw mountings (54), and left and right adjustment screws and screw mountings (55). .
  • the first lamp unit 2, the second lamp unit 3, and the third lamp unit 4 are integrated with each other via the first mounting member 51, the rotating mechanism 6, and the second mounting member 52.
  • the optical axis can be adjusted.
  • the rotation mechanism 6 includes a drive unit (not shown) and a drive force transmission mechanism (not shown) housed in the casing 60, and a rotation shaft 61.
  • a drive unit (not shown) and a drive force transmission mechanism (not shown) housed in the casing 60, and a rotation shaft 61.
  • the driving unit By driving the driving unit, the driving force of the driving unit is transmitted to the rotating shaft 61 via the driving force transmission mechanism.
  • the rotating shaft 61 rotates about the vertical axis (including substantially the vertical axis) VV.
  • the first mounting member 51 is fixed to the rotating shaft 61 of the rotating mechanism 6.
  • the vertical axis VV of the rotating shaft 61 of the rotating mechanism 6 passes through the center or almost the center of the third lamp unit 4.
  • the third lamp unit 4 is configured to be rotatable about the vertical axis VV by the rotation mechanism 6 via the first mounting member 51.
  • the rotation mechanism 6 is attached to the second attachment member 52.
  • the second attachment member 52 is attached to the lamp housing 5 via the optical axis adjusting devices 53, 54 and 55.
  • the rotation mechanism 6 is driven via the detection unit 7 and the control unit 8 to rotate the third lamp unit 4 about the vertical axis VV.
  • the optical axis of the third lamp unit 4 rotates steplessly around the vertical axis VV in a range from the front direction of the vehicle C to a predetermined angle outside the vehicle C.
  • the ADB beam light distribution patterns LSP and RSP rotate steplessly on the left and right sides with respect to the vertical line VU-VD above and below the screen.
  • the detection unit 7 detects the presence / absence of a target vehicle (target forward vehicle such as an oncoming vehicle or a preceding vehicle) 9 and a relative position (relative distance, relative angle) with respect to the target vehicle 9 and the like, and detects the detection signal. This is output to the control unit 8.
  • the detection unit 7 uses other sensors such as a CCD camera (camera sensor) and a vehicle speed sensor, for example.
  • the control unit 8 uses, for example, an ECU.
  • the control unit 8 outputs a control signal to the vehicle headlamps 1L and 1R based on a detection signal from the detection unit 7.
  • the control unit 8 includes a switching circuit (irradiation unit switching circuit) 80.
  • the control unit 8 may be disposed inside the lamp chamber 50 or may be disposed outside the lamp chamber 50.
  • the switching circuit 80 performs dimming control with temporal change of the low beam light source, the high beam light source, and the ADB beam light source (hereinafter sometimes simply referred to as “light source”), and dimming of the light source is turned off. Switching control is performed.
  • the light control of the light source is, for example, binary pulse width modulation, and is performed by decreasing and increasing the duty ratio of the ON pulse width or the OFF pulse width.
  • dimming control of the light source the brightness (luminance, illuminance, luminance, light quantity, etc.) of the low beam light distribution pattern LP, the high beam light distribution pattern HP, the ADB beam light distribution pattern LSP, RSP is gradually increased (gradual increase). ) Or gradually decrease (decrease).
  • the switching circuit 80 switches the high beam light source of the second lamp unit 3 that irradiates the high beam light distribution pattern HP from a 0% extinction state (complete extinction state). Dimming with time change in 100% lighting state (complete lighting state) (see Y12, Y13) and dimming with time change from 100% lighting state to 0% off state Turn off the light (see Y15).
  • the switching circuit 80 turns off the ADB beam light source of the third lamp unit 4 that emits the ADB beam light distribution patterns LSP and RSP in a 0% extinction state (completely). Dimming with time change from 100% lighting state to 100% lighting state (complete lighting state) (see Y15, Y16) and time change from 100% lighting state to 0% off state Dimming is turned off (see Y12).
  • the switching circuit 80 changes the low beam light source of the first lamp unit 2 that irradiates the low beam light distribution pattern LP from a 0% off state (completely off state) to a 100% on state ( The dimming lighting with a temporal change is performed in the complete lighting state), and the dimming lighting with a temporal change is performed from the lighting state of 100% to the extinguishing state of 0%.
  • the low beam light source of the first lamp unit 2 is always in a 100% lighting state, for example, during night driving.
  • the switching circuit 80 includes a dimming extinction time (Y15) of the high beam light source of the second lamp unit 3 and the ADB beam light source of the third lamp unit 4.
  • the dimming turn-off time (Y12) of the second lamp unit 3 is higher than the dimming turn-on time (Y12 + Y13) of the high beam light source and the dimming turn-on time (Y15 + Y16) of the ADB beam light source of the third lamp unit 4.
  • the dimming point on / off switching control of the light source is performed.
  • the switching circuit 80 determines that the dimming turn-off time (Y15) of the high beam light source of the second lamp unit 3 is the ADB beam of the third lamp unit 4.
  • the light source dimming switching on / off control of the light source is performed so as to be shorter than the dimming lighting time (Y15 + Y16) of the light source.
  • the vehicle headlamp device according to the first embodiment has the above-described configuration, and the operation thereof will be described below.
  • the low-beam light source of the first lamp unit 2 is always in a 100% lighting state, for example, when the vehicle C travels at night.
  • this state as shown in FIG. 6, when there is a target vehicle 9 (an oncoming vehicle in the description of the operation of the first embodiment) ahead of the vehicle C (the own vehicle in the description of the operation of the first embodiment).
  • the high beam light source of the second lamp unit 3 is 0% off, while the ADB beam light source of the third lamp unit 4 is turned on 100%. Is in a state.
  • FIG. 6 shows a target vehicle 9 (an oncoming vehicle in the description of the operation of the first embodiment) ahead of the vehicle C (the own vehicle in the description of the operation of the first embodiment).
  • the low beam distribution pattern LP and the left and right ADB beam distribution patterns LSP and RSP are irradiated in front of the vehicle C, and the right ADB beam distribution pattern.
  • the RSP rotates steplessly on the right side.
  • the target vehicle 9 is positioned between the right vertical cutoff line of the left ADB beam light distribution pattern LSP and the left vertical cutoff line of the right ADB beam light distribution pattern RSP. There is no glare.
  • the high beam light source of the second lamp unit 3 starts dimming from 0% off, while the ADB beam light source of the third lamp unit 4 is adjusted from 100% on. Start turning off the light.
  • the vehicle C is irradiated with a low beam light distribution pattern LP, a high beam light distribution pattern HP, and left and right ADB beam light distribution patterns LSP and RSP. Thereby, distant visibility can be ensured.
  • the high beam light source of the second lamp unit 3 maintains the dimming lighting state, as indicated by Y13 in FIGS. 4 (A) and 4 (B).
  • the ADB beam light source of the third lamp unit 4 is turned off at 0%.
  • the high beam light source of the 2nd lamp unit 3 maintains a 100% lighting state.
  • a low beam light distribution pattern LP and a high beam light distribution pattern HP are irradiated in front of the vehicle C. Thereby, ensuring of the distant visibility is maintained.
  • the detection unit 7 detects the target vehicle 9 and does not give glare to the target vehicle 9 if it is the ADB beam light distribution pattern LSP, RSP, Y15 in FIGS. 4 (A) and 4 (B).
  • the dimming lighting starts when the high beam light source of the second lamp unit 3 is turned on at 100%, while the dimming lighting starts when the ADB beam light source of the third lamp unit 4 is turned off at 0%.
  • the vehicle C is irradiated with a low beam light distribution pattern LP, a high beam light distribution pattern HP, and left and right ADB beam light distribution patterns LSP and RSP.
  • the right ADB beam light distribution pattern RSP is slightly rotated to the right, the right vertical cutoff line of the left ADB beam light distribution pattern LSP and the left vertical of the right ADB beam light distribution pattern RSP are displayed. There is a slight gap between it and the cut-off line. Since the target vehicle (not shown in FIG. 7) is located in this gap, glare is not given to the target vehicle, and distant visibility can be ensured.
  • the high beam light source of the second lamp unit 3 is turned off at 0%, as indicated by Y16 in FIGS. 4 (A) and 4 (B).
  • the ADB beam light source of the third lamp unit 4 maintains the dimming lighting state.
  • the ADB beam light source of the 3rd lamp unit 4 maintains a 100% lighting state.
  • the low beam distribution pattern LP and the left and right ADB beam distribution patterns LSP and RSP are irradiated in front of the vehicle C, and the right ADB beam distribution pattern.
  • the RSP rotates steplessly on the right side.
  • the target vehicle 9 is positioned between the right vertical cutoff line of the left ADB beam light distribution pattern LSP and the left vertical cutoff line of the right ADB beam light distribution pattern RSP. There is no glare.
  • the vehicle headlamp device according to the first embodiment has the above-described configuration and operation, and the effects thereof will be described below.
  • the vehicle headlamp device changes the high beam light source of the second lamp unit 3 that irradiates the high beam light distribution pattern HP from 100% off to 100%. Dimming with time change in the lighting state (see Y12, Y13) and dimming with time change from 100% lighting state to 0% off state (see Y15) . Further, as shown in FIG. 4B, the vehicle headlamp device according to the first embodiment uses 0% of the ADB beam light source of the third lamp unit 4 that emits the ADB beam light distribution patterns LSP and RSP.
  • the light distribution pattern is changed from the ADB beam light distribution pattern LSP, RSP to the high beam distribution pattern as indicated by Y12, Y13 in FIGS.
  • changes (transitions) from the high beam light distribution pattern HP to the ADB beam light distribution patterns LSP and RSP. ) Is accompanied by changes over time, so that the driver's eyestrain and discomfort can be reduced.
  • the vehicle headlamp device includes a dimming turn-off time (Y15) of the high beam light source of the second lamp unit 3 and the third lamp unit 4.
  • the dimming turn-off time (Y12) of the ADB beam light source is higher than the dimming turn-on time (Y12 + Y13) of the high beam light source of the second lamp unit 3 and the dimming turn-on time (Y15 + Y16) of the ADB beam light source of the third lamp unit 4 ,short.
  • the vehicle headlamp device quickly switches from the high beam light distribution pattern HP or the ADB beam light distribution pattern LSP, RSP to the low beam light distribution pattern LP when the target vehicle 9 is present. And no glare is given to the target vehicle 9. Further, from the low beam light distribution pattern LP, when there is no target vehicle 9, the high beam light distribution pattern HP, or when the target vehicle 9 can be irradiated while avoiding the ADB beam light distribution pattern LSP, RSP, It can be switched slowly, reducing the driver's eyestrain and discomfort.
  • the detection unit 7 detects the target vehicle 9 while the high beam light distribution pattern HP is being irradiated, and the target is the ADB beam light distribution pattern LSP, RSP.
  • the high beam light distribution pattern HP is switched to the ADB beam light distribution pattern LSP, RSP.
  • the dimming turn-off time (Y15) of the high beam light source of the second lamp unit 3 is the dimming lighting time (Y15) of the ADB beam light source of the third lamp unit 4 ( Shorter than Y15 + Y16).
  • the ADB beam light distribution pattern LSP switches from RSP to high beam distribution pattern HP.
  • the dimming lighting time (Y12 + Y13) of the high beam light source of the second lamp unit 3 is the dimming extinction time (Y12 + Y13) of the ADB beam light source of the third lamp unit 4 ( Longer than Y12).
  • the vehicular headlamp device according to the first embodiment can dimly light the high beam light distribution pattern HP gently so as not to give eyestrain and discomfort to the driver.
  • the dimming turn-off time (Y15) of the high beam light source of the second lamp unit 3 is longer than the dimming lighting time (Y15 + Y16) of the ADB beam light source of the third lamp unit 4. Even short. For this reason, when the high beam light source is completely extinguished at 0% (between Y15 and Y16), the ADB beam light source is in the dimming lighting state of X% as shown in FIG. . Thereby, a pedestrian or a person riding a bicycle does not mistakenly say that the vehicle headlamps 1L and 1R of the vehicle C are turned off (passed) for a moment. Further, the driver can clearly recognize that the light distribution has been switched from the high beam light distribution pattern HP to the ADB beam light distribution patterns LSP and RSP (that is, the irradiation range of the light distribution pattern has changed).
  • the vehicular headlamp apparatus can prevent the above-described misidentification.
  • the dimming extinction time of the high beam light source is the same as the dimming lighting time (Y15 + Y16) of the ADB beam light source.
  • the driver cannot clearly recognize that the light distribution has been switched from the high beam light distribution pattern HP to the ADB beam light distribution patterns LSP and RSP (that is, the irradiation range of the light distribution pattern has changed).
  • the driver switches the light distribution from the high beam light distribution pattern HP to the ADB beam light distribution pattern LSP, RSP (that is, the irradiation range of the light distribution pattern changes). Can be clearly recognized.
  • FIG. 9 shows Embodiment 2 of the vehicle headlamp device according to the present invention.
  • the same reference numerals as those in FIGS. 1 to 8 denote the same components.
  • the configuration of the vehicle headlamp apparatus according to the second embodiment will be described.
  • the vehicle headlamp device includes a high beam light source of the second lamp unit 3 and an ADB beam light source of the third lamp unit 4 as shown by solid lines in FIGS. 9A and 9B.
  • the dimming point may be turned off exclusively, or the high beam light source of the second lamp unit 3 and the ADB beam light source of the third lamp unit 4 as shown by the alternate long and short dash lines in FIGS. And the dimming point may be turned off.
  • the vehicle headlamp device includes a dimming extinction time (Y27) of the high beam light source of the second lamp unit 3 and the third lamp unit 4.
  • the dimming turn-off time (Y23 or Y27) of the ADB beam light source of the second lamp unit 3 is the dimming turn-on time (Y25) of the high beam light source of the second lamp unit 3 and the dimming turn-on time of the ADB beam light source of the third lamp unit 4 ( Shorter than Y21 or Y25).
  • Y22 is a lighting state in which the ADB beam light source of the third lamp unit 4 is 100%.
  • Y24 is a 0% off state of the high beam light source of the second lamp unit 3 and the ADB beam light source of the third lamp unit 4.
  • Y26 is a lighting state in which the high beam light source of the second lamp unit 3 or the high beam light source of the second lamp unit 3 and the ADB beam light source of the third lamp unit 4 is 100%.
  • Y28 is a 0% off state of the high beam light source of the second lamp unit 3 and the ADB beam light source of the third lamp unit 4.
  • the vehicle headlamp device includes a dimming extinction time (Y27) of the high beam light source of the second lamp unit 3 and the third lamp unit 4.
  • the dimming turn-off time (Y23 or Y27) of the ADB beam light source of the second lamp unit 3 is the dimming turn-on time (Y25) of the high beam light source of the second lamp unit 3 and the dimming turn-on time of the ADB beam light source of the third lamp unit 4 ( Shorter than Y21 or Y25).
  • the vehicular headlamp apparatus has a low beam distribution pattern from the high beam distribution pattern HP, the ADB beam distribution pattern LSP, and the RSP when there is another vehicle (target vehicle 9). It is possible to quickly switch to LP, and no glare is given to other vehicles. Further, from the low beam light distribution pattern LP, when there is no other vehicle, to the high beam light distribution pattern HP, or when it can be irradiated while avoiding other vehicles, to the ADB beam light distribution pattern LSP, RSP, It can be switched slowly, reducing the driver's eyestrain and discomfort.
  • FIG. 10 shows Embodiment 3 of the vehicle headlamp device according to the present invention.
  • the same reference numerals as those in FIGS. 1 to 9 denote the same components.
  • the configuration of the vehicle headlamp apparatus according to the third embodiment will be described.
  • the vehicle headlamp device includes a high beam light source of the second lamp unit 3 and an ADB beam light source of the third lamp unit 4 as shown by solid lines in FIGS. 10 (A) and 10 (B).
  • the dimming point may be turned off exclusively, or the high beam light source of the second lamp unit 3 and the ADB beam light source of the third lamp unit 4 as shown by the alternate long and short dashed lines in FIGS. And the dimming point may be turned off.
  • the high beam light source of the second lamp unit 3 changes over time from a 0% off state to a 100% on state.
  • the dimming is turned on (Y34), and the dimming is turned off with time change from the 100% on state to the 0% off state (Y36).
  • the ADB beam light source of the third lamp unit 4 takes time from the 0% off state to the 100% on state.
  • the dimming is turned on with a change in time (Y32, Y36), and the dimming is turned off with a temporal change from a 100% lighting state to a 0% off state (Y34).
  • Y31 is in the lighting state in which only the low beam light source of the first lamp unit 2 is 100%.
  • Y33 is a lighting state in which the low beam light source of the first lamp unit 2 and the ADB beam light source of the third lamp unit 4 are 100%.
  • Y35 is the low beam light source of the first lamp unit 2 and the high beam light source of the second lamp unit 3, or the low beam light source of the first lamp unit 2, the second lamp uni, the high beam light source of 3, and the ADB of the third lamp unit 4.
  • the beam light source is in a 100% lighting state.
  • Y37 is a lighting state in which only the low beam light source of the first lamp unit 2 is 100%.
  • the low beam light source of the first lamp unit 2 performs dimming lighting with a time change from 0% extinguishing state to 100% lighting state, and 0% from 100% lighting state. It is controlled to turn off the dimming accompanied by a temporal change in the extinguished state.
  • the vehicular headlamp apparatus Since the vehicular headlamp apparatus according to the third embodiment is configured as described above, the high beam light distribution pattern HP, the ADB beam light distribution pattern LSP, and RSP (including the low beam light distribution pattern LP) are turned on and off. In some cases, the time change is accompanied, so that the driver's eyestrain and discomfort can be reduced.
  • vehicle headlamps 1L and 1R when the vehicle C is on the left side will be described.
  • the present invention can also be applied to a vehicle headlamp device when the vehicle C is right-hand traffic.
  • the high beam light distribution pattern HP has an oval half shape having a horizontal cut-off line on the lower side.
  • the shape of the high beam light distribution pattern is not particularly limited. For example, an oval shape may be used.
  • the ADB beam light distribution patterns LHP and RHP have an oval quarter shape.
  • the shape of the ADB beam light distribution pattern is not particularly limited. For example, a triangle shape with a vertical cut-off line as one side, a half shape of an oval cut with a vertical cut-off line, or a three-quarter shape of an oval cut with a vertical cut-off line and a horizontal cut-off line It may be the shape.
  • the first lamp unit 2 is rotated left and right by the swivel device 91.
  • the first lamp unit and the second lamp unit may be rotated right and left simultaneously by the swivel device.
  • a semiconductor light source is used as the light source of the first lamp unit 2.
  • a light source other than the semiconductor light source for example, a discharge light source such as HID, a bulb light source such as a halogen light source, or the like may be used.
  • the target vehicle 9 may be one preceding vehicle that runs on the left-turned road, or a plurality of oncoming vehicles or preceding vehicles.
  • the third lamp unit 4 is rotated by the rotation mechanism 6 to rotate and change the ADB beam light distribution patterns LHP and RHP.
  • a light blocking member may be rotatably provided in the third lamp unit, and the light blocking member may be rotated to change the ADB beam light distribution pattern.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

Conventional vehicular headlight devices cause a driver to feel eye fatigue or a sense of discomfort. The present invention is provided with: a first lamp unit (2); a second lamp unit (3); a third lamp unit (4); a detection unit (7); and a control unit (8). The control unit (8) performs light turn-on/off control for at least one of the first lamp unit (2), the second lamp unit (3), and the third lamp unit (4) according to dimming control involving temporal changes. As a result, the present invention can alleviate the eye fatigue or the sense of discomfort felt by the driver.

Description

車両用前照灯装置Vehicle headlamp device
　この発明は、前方の対象車に対応して、複数の配光パターンに切り替えることができる車両用前照灯装置に関するものである。 The present invention relates to a vehicle headlamp device that can be switched to a plurality of light distribution patterns corresponding to a target vehicle ahead.
　この種の車両用前照灯装置は、従来からある（たとえば、特許文献１）。以下、従来の車両用前照灯装置について説明する。従来の車両用前照灯装置は、前走車に対応して、ベーシックロービーム用配光パターン、ドーバーロービーム用配光パターン、ハイビーム用配光パターン、左片ハイ用配光パターン、右片ハイ用配光パターン、Ｖビーム用配光パターンに切り替えるものである。 This type of vehicle headlamp device has been conventionally used (for example, Patent Document 1). Hereinafter, a conventional vehicle headlamp apparatus will be described. Conventional vehicle headlamps are compatible with the front-running vehicle. Basic low beam light distribution pattern, Dover low beam light distribution pattern, high beam light distribution pattern, left one high light distribution pattern, right one high The light distribution pattern and the V beam light distribution pattern are switched.
特開２０１１－２３５６７８号公報JP 2011-235678 A
　ところが、前記の従来の車両用前照灯装置は、配光パターンが時間的変化を伴わずに一気に切り替わるために、ドライバーに眼精疲労を与える場合がある。 However, the conventional vehicle headlamp device described above may cause eyestrain to the driver because the light distribution pattern is switched at a time without any temporal change.
　この発明が解決しようとする課題は、従来の車両用前照灯装置では、ドライバーに眼精疲労を与える場合がある、という点にある。 The problem to be solved by the present invention is that the conventional vehicle headlamp apparatus may give eyestrain to the driver.
　この発明（請求項１にかかる発明）は、ロービーム配光パターンを車両の前方に照射するロービームランプユニットと、ハイビーム配光パターンを車両の前方に照射するハイビームランプユニットと、ＡＤＢビーム配光パターンを車両の前方に照射するＡＤＢビームランプユニットと、前方の対象車を検出して検出信号を出力する検出部と、検出部からの検出信号に基づいてロービームランプユニット、ハイビームランプユニット、ＡＤＢビームランプユニットに制御信号を出力する制御部と、を備え、制御部が、ロービームランプユニット、ハイビームランプユニット、ＡＤＢビームランプユニットのうち少なくともいずれか１のランプユニットの点消灯制御を、時間的変化を伴う調光制御で行う、ことを特徴とする。 According to the present invention (the invention according to claim 1), a low beam lamp unit that irradiates the front of the vehicle with a low beam light distribution pattern, a high beam lamp unit that irradiates the front of the vehicle with a high beam light distribution pattern, and an ADB beam light distribution pattern. An ADB beam lamp unit that irradiates the front of the vehicle, a detection unit that detects a target vehicle ahead and outputs a detection signal, and a low beam lamp unit, a high beam lamp unit, and an ADB beam lamp unit based on the detection signal from the detection unit A control unit that outputs a control signal to the control unit, and the control unit performs on / off control of at least one of the low beam lamp unit, the high beam lamp unit, and the ADB beam lamp unit with a temporal change. It is characterized by performing light control.
　この発明（請求項２にかかる発明）は、ハイビームランプユニット、または、ＡＤＢビームランプユニット、あるいは、ハイビームランプユニットおよびＡＤＢビームランプユニットの調光消灯時間が、ハイビームランプユニット、または、ＡＤＢビームランプユニット、あるいは、ハイビームランプユニットおよびＡＤＢビームランプユニットの調光点灯時間よりも、短い、ことを特徴とする。 The present invention (the invention according to claim 2) is a high beam lamp unit, or an ADB beam lamp unit, or a dimming off time of the high beam lamp unit and the ADB beam lamp unit. Alternatively, it is shorter than the dimming lighting time of the high beam lamp unit and the ADB beam lamp unit.
　この発明（請求項３にかかる発明）は、ハイビームランプユニットの調光消灯時間が、ＡＤＢビームランプユニットの調光点灯時間よりも、短い、ことを特徴とする。 This invention (the invention according to claim 3) is characterized in that the dimming turn-off time of the high beam lamp unit is shorter than the dimming turn-on time of the ADB beam lamp unit.
　この発明の車両用前照灯装置は、ロービームランプユニット、ハイビームランプユニット、ＡＤＢビームランプユニットのうち少なくともいずれか１のランプユニットが時間的変化を伴う調光点消灯をする。この結果、ロービーム配光パターン、ハイビーム配光パターン、ＡＤＢビーム配光パターンの明るさ（光度、照度、輝度、光量）を徐々に増加（漸増）させたり徐々に減少（漸減）させたりすることができるので、ドライバーに眼精疲労を与えるようなことがない。 In the vehicle headlamp device according to the present invention, at least one of the low beam lamp unit, the high beam lamp unit, and the ADB beam lamp unit turns off the dimming light with time change. As a result, the brightness (luminance, illuminance, luminance, light quantity) of the low beam distribution pattern, high beam distribution pattern, and ADB beam distribution pattern may be gradually increased (gradual increase) or gradually decreased (gradual decrease). Because it can, it does not give eyestrain to the driver.
図１は、この発明にかかる車両用前照灯装置の実施形態１を示し、左右両側　　の車両用前照灯を搭載した車両の平面図である。FIG. 1 shows a first embodiment of a vehicle headlamp device according to the present invention, and is a plan view of a vehicle equipped with left and right vehicle headlamps. 図２は、右側の車両用前照灯の主要構成部品を示す正面図である。FIG. 2 is a front view showing main components of the right vehicle headlamp. 図３は、車両用前照灯装置の構成部品を示すブロック図である。FIG. 3 is a block diagram showing components of the vehicle headlamp device. 図４は、ハイビームランプユニット、ＡＤＢビームランプユニット、ロービームランプユニットの調光点消灯の状態を示す説明図である。FIG. 4 is an explanatory diagram showing a dimming point lighting state of the high beam lamp unit, the ADB beam lamp unit, and the low beam lamp unit. 図５は、左右両側の車両用前照灯から照射されるハイビーム配光パターン、ＡＤＢビーム配光パターン、ロービーム配光パターンを示す説明図である。FIG. 5 is an explanatory diagram showing a high beam light distribution pattern, an ADB beam light distribution pattern, and a low beam light distribution pattern emitted from the left and right vehicle headlamps. 図６は、対象車が検出されたときに照射されているＡＤＢビーム配光パターンとロービーム配光パターンとを示す説明図である。FIG. 6 is an explanatory diagram showing an ADB beam light distribution pattern and a low beam light distribution pattern irradiated when the target vehicle is detected. 図７は、対象車が検出されたときに照射されているハイビーム配光パターンとＡＤＢビーム配光パターンとロービーム配光パターンとを示す説明図である。FIG. 7 is an explanatory diagram showing a high beam light distribution pattern, an ADB beam light distribution pattern, and a low beam light distribution pattern that are emitted when the target vehicle is detected. 図８は、対象車が検出されていないときに照射されているハイビーム配光パターンとロービーム配光パターンとを示す説明図である。FIG. 8 is an explanatory diagram showing a high beam light distribution pattern and a low beam light distribution pattern that are emitted when the target vehicle is not detected. 図９は、この発明にかかる車両用前照灯装置の実施形態２を示すハイビームランプユニット、ＡＤＢビームランプユニット、ロービームランプユニットの調光点消灯の状態の説明図である。FIG. 9 is an explanatory diagram of the dimming / lighting-off state of the high beam lamp unit, the ADB beam lamp unit, and the low beam lamp unit, showing Embodiment 2 of the vehicle headlamp device according to the present invention. 図１０は、この発明にかかる車両用前照灯装置の実施形態３を示すハイビームランプユニット、ＡＤＢビームランプユニット、ロービームランプユニットの調光点消灯の状態の説明図である。FIG. 10 is an explanatory diagram of the dimming / lighting-off state of the high beam lamp unit, the ADB beam lamp unit, and the low beam lamp unit, showing Embodiment 3 of the vehicle headlamp device according to the present invention.
　以下、この発明にかかる車両用前照灯装置の実施形態（実施例）の３例を図面に基づいて詳細に説明する。なお、この実施形態によりこの発明が限定されるものではない。図４、図９、図１０において、縦軸は、ハイビームランプユニット、ＡＤＢビームランプユニット、ロービームランプユニットの調光点消灯の状態を示し、横軸は、時間を示し、太い実線は、点消灯状態を示す。図５～図８において、符号「ＶＵ－ＶＤ」は、スクリーンの上下の垂直線を示す。符号「ＨＬ－ＨＲ」は、スクリーンの左右の水平線を示す。この明細書において、前、後、上、下、左、右は、この発明にかかる車両用前照灯装置を車両に搭載した際の前、後、上、下、左、右である。 Hereinafter, three examples (embodiments) of the vehicle headlamp device according to the present invention will be described in detail with reference to the drawings. In addition, this invention is not limited by this embodiment. 4, 9, and 10, the vertical axis indicates the dimming / lighting state of the high beam lamp unit, the ADB beam lamp unit, and the low beam lamp unit, the horizontal axis indicates the time, and the thick solid line indicates the light is off. Indicates the state. 5 to 8, reference numeral “VU-VD” indicates vertical lines on the upper and lower sides of the screen. The symbol “HL-HR” indicates a horizontal line on the left and right of the screen. In this specification, front, rear, upper, lower, left, and right are front, rear, upper, lower, left, and right when the vehicle headlamp device according to the present invention is mounted on a vehicle.
（実施形態１の構成の説明）
　以下、この実施形態１にかかる車両用前照灯装置（車両用前照灯システム）の構成について説明する。前記車両用前照灯装置は、図３に示すように、車両用前照灯１Ｌ、１Ｒと、検出部７と、制御部８と、を備える。 (Description of Configuration of Embodiment 1)
Hereinafter, the configuration of the vehicle headlamp device (vehicle headlamp system) according to Embodiment 1 will be described. As shown in FIG. 3, the vehicle headlamp device includes vehicle headlamps 1 </ b> L and 1 </ b> R, a detection unit 7, and a control unit 8.
（車両用前照灯１Ｌ、１Ｒの説明）
　前記車両用前照灯１Ｌ、１Ｒは、たとえば、ヘッドランプなどであって、左側通行用の車両Ｃの前部の左右両端部に搭載されている。以下、前記車両Ｃの右側に搭載される右側の前記車両用前照灯１Ｒについて説明する。なお、前記車両Ｃの左側に搭載される左側の前記車両用前照灯１Ｌは、右側の前記車両用前照灯１Ｒとほぼ同様の構成をなすので、説明を省略する。 (Description of vehicle headlamps 1L, 1R)
The vehicle headlamps 1L and 1R are, for example, headlamps and are mounted on both left and right ends of the front portion of the vehicle C for left-hand traffic. Hereinafter, the right vehicle headlamp 1R mounted on the right side of the vehicle C will be described. The left vehicle headlamp 1L mounted on the left side of the vehicle C has substantially the same configuration as the right vehicle headlamp 1R, and a description thereof will be omitted.
　前記車両用前照灯１Ｒ（１Ｌ）は、図２、図３に示すように、ロービームランプユニットとしての第１ランプユニット（すれ違い用ビーム照射部）２と、ハイビームランプユニットとしての第２ランプユニット（走行用ビーム照射部）３と、ＡＤＢ（可変）ビームランプユニットとしての第３ランプユニット（ＡＤＢ用ビーム照射部）４と、ランプハウジング５と、ランプレンズ（たとえば、素通しのアウターレンズなど）と、第１取付部材５１および第２取付部材（ブラケット）５２と、光軸調整装置５３、５４、５５と、回動機構（スイブル装置）６と、を備えるものである。 As shown in FIGS. 2 and 3, the vehicle headlamp 1R (1L) includes a first lamp unit (passing beam irradiation unit) 2 as a low beam lamp unit and a second lamp unit as a high beam lamp unit. (Running beam irradiating unit) 3, a third lamp unit (ADB beam irradiating unit) 4 as an ADB (variable) beam lamp unit, a lamp housing 5, and a lamp lens (for example, a plain outer lens) The first mounting member 51 and the second mounting member (bracket) 52, the optical axis adjusting devices 53, 54, and 55, and the rotating mechanism (swiveling device) 6 are provided.
　前記第１ランプユニット２および前記第２ランプユニット３および前記第３ランプユニット４および前記第１取付部材５１および前記第２取付部材５２および前記光軸調整装置５３、５４、５５および前記回動機構６は、前記ランプハウジング５および前記ランプレンズにより区画されている灯室５０内に、配置されている。なお、前記灯室５０内には、図示されていないが、フォグランプ、コーナリングランプ、クリアランスランプ、ターンシグナルランプ、オーバーヘッドサインランプなどの他のランプユニットが配置されている場合がある。 The first lamp unit 2, the second lamp unit 3, the third lamp unit 4, the first mounting member 51, the second mounting member 52, the optical axis adjusting devices 53, 54, 55, and the rotating mechanism 6 is disposed in a lamp chamber 50 defined by the lamp housing 5 and the lamp lens. In the lamp chamber 50, although not shown, other lamp units such as a fog lamp, a cornering lamp, a clearance lamp, a turn signal lamp, and an overhead sign lamp may be arranged.
　前記第１ランプユニット２および前記第２ランプユニット３は、前記第２取付部材５２に取り付けられている。前記第１ランプユニット２の光軸（図示せず）および前記第２ランプユニット３の光軸（図示せず）は、固定されていて、前記車両Ｃの正面方向（軸方向、進行方向、図１中の一点鎖線と平行もしくはほぼ平行）に向いている。 The first lamp unit 2 and the second lamp unit 3 are attached to the second attachment member 52. The optical axis (not shown) of the first lamp unit 2 and the optical axis (not shown) of the second lamp unit 3 are fixed, and the front direction of the vehicle C (axial direction, traveling direction, diagram) 1 parallel to or substantially parallel to the one-dot chain line in FIG.
　前記第３ランプユニット４は、前記第１取付部材５１および前記回動機構６を介して前記第２取付部材５２に取り付けられている。前記第３ランプユニット４の光軸（図示せず）は、前記回動機構６により、前記車両Ｃの正面方向から前記車両Ｃの外側（右側の前記車両用前照灯１Ｒの場合においては右側、左側の前記車両用前照灯１Ｌの場合においては左側）の所定角度（たとえば、約１５°）までの範囲において、回転する。 The third lamp unit 4 is attached to the second attachment member 52 via the first attachment member 51 and the rotation mechanism 6. The optical axis (not shown) of the third lamp unit 4 is moved from the front direction of the vehicle C to the outside of the vehicle C (right side in the case of the right vehicle headlamp 1R) by the rotating mechanism 6. Rotate within a range up to a predetermined angle (for example, about 15 °) of the left side vehicle headlamp 1L.
　前記第１ランプユニット２は、前記車両Ｃの外側に配置されている。前記第２ランプユニット３は、前記車両Ｃの内側（右側の前記車両用前照灯１Ｒの場合においては左側、左側の前記車両用前照灯１Ｌの場合においては右側）に配置されている。前記第３ランプユニット４は、前記第１ランプユニット２と前記第２ランプユニット３との間に配置されている。なお、前記第３ランプユニット４は、前記第１ランプユニット２と内外入れ替えて配置しても良いし、あるいは、前記第２ランプユニット３と内外入れ替えて配置しても良いし、あるいは、前記第１ランプユニット２および前記第２ランプユニット３に対して上側もしくは下側に配置しても良い。 The first lamp unit 2 is disposed outside the vehicle C. The second lamp unit 3 is disposed inside the vehicle C (on the left side in the case of the right vehicle headlamp 1R, on the right side in the case of the left vehicle headlamp 1L). The third lamp unit 4 is disposed between the first lamp unit 2 and the second lamp unit 3. The third lamp unit 4 may be arranged inside and outside the first lamp unit 2, or may be arranged inside and outside the second lamp unit 3, or the first lamp unit 3 The first lamp unit 2 and the second lamp unit 3 may be arranged on the upper side or the lower side.
（第１ランプユニット２の説明）
　前記第１ランプユニット２は、この例では、プロジェクタタイプのランプユニットである。前記第１ランプユニット２は、ロービーム光源と、リフレクタと、投影レンズと、シェードと、ヒートシンク部材と、ホルダと、から構成されている。前記ロービーム光源は、この例では、半導体型光源であって、ＬＥＤ、ＯＥＬまたはＯＬＥＤ（有機ＥＬ）などの自発光半導体型光源を使用する。前記ロービーム光源は、前記制御部８から出力される制御信号に基づいて時間的変化を伴う調光点消灯をする。 (Description of the first lamp unit 2)
In this example, the first lamp unit 2 is a projector type lamp unit. The first lamp unit 2 includes a low beam light source, a reflector, a projection lens, a shade, a heat sink member, and a holder. In this example, the low beam light source is a semiconductor light source, and a self-luminous semiconductor light source such as an LED, an OEL, or an OLED (organic EL) is used. The low beam light source performs dimming / light extinction with a temporal change based on a control signal output from the control unit 8.
　前記第１ランプユニット２は、前記ロービーム光源の点灯により、図５（Ｄ）に示すように、ロービーム配光パターン（すれ違い用ビーム配光パターン）ＬＰを前記車両Ｃの前方に照射するものである。左右両側の前記車両用前照灯１Ｌ、１Ｒから照射される前記ロービーム配光パターンＬＰは、共通である。前記ロービーム配光パターンＬＰは、左側の走行車線側の上水平カットオフラインと、右側の対向車線側の下水平カットオフラインと、中央の斜めカットオフラインと、を有する。なお、前記ロービーム配光パターンＬＰは、前記のＺカットオフライン以外に、左側の走行車線側の斜めカットオフラインと、右側の対向車線側の水平カットオフラインと、を有するものであっても良い。前記ロービーム配光パターンＬＰは、主に、左側の走行車線および右側の対向車線の手前側を広範囲に亘って拡散させて照明するものである。 The first lamp unit 2 emits a low beam light distribution pattern (passing beam light distribution pattern) LP forward of the vehicle C as shown in FIG. 5D by turning on the low beam light source. . The low beam light distribution patterns LP emitted from the left and right vehicle headlamps 1L and 1R are common. The low-beam light distribution pattern LP includes an upper horizontal cutoff line on the left traveling lane side, a lower horizontal cutoff line on the right opposite lane side, and a central oblique cutoff line. The low beam light distribution pattern LP may include an oblique cut-off line on the left traveling lane side and a horizontal cut-off line on the right opposite lane side in addition to the Z cut-off line. The low beam light distribution pattern LP mainly illuminates the front side of the left traveling lane and the right opposite lane by diffusing over a wide range.
（第２ランプユニット３の説明）
　前記第２ランプユニット３は、この例では、プロジェクタタイプのランプユニットである。前記第２ランプユニット３は、ハイビーム光源と、リフレクタと、投影レンズと、シェードと、ヒートシンク部材と、ホルダと、から構成されている。前記ハイビーム光源は、この例では、半導体型光源であって、ＬＥＤ、ＯＥＬまたはＯＬＥＤ（有機ＥＬ）などの自発光半導体型光源を使用する。前記ハイビーム光源は、前記制御部８から出力される制御信号に基づいて時間的変化を伴う調光点消灯をする。 (Description of the second lamp unit 3)
In this example, the second lamp unit 3 is a projector type lamp unit. The second lamp unit 3 includes a high beam light source, a reflector, a projection lens, a shade, a heat sink member, and a holder. In this example, the high beam light source is a semiconductor light source, and a self-luminous semiconductor light source such as an LED, an OEL, or an OLED (organic EL) is used. The high-beam light source performs dimming / light-off with time change based on a control signal output from the control unit 8.
　前記第２ランプユニット３は、前記ハイビーム光源の点灯により、図５（Ａ）に示すように、ハイビーム配光パターン（走行用ビーム配光パターン）ＨＰを前記車両Ｃの前方に照射するものである。左右両側の前記車両用前照灯１Ｌ、１Ｒから照射される前記ハイビーム配光パターンＨＰは、共通である。前記ハイビーム配光パターンＨＰは、下側に水平カットオフラインを有する。前記ハイビーム配光パターンＨＰの下側の部分と前記ロービーム配光パターンＬＰの上側の部分とは、重なり合う。前記ハイビーム配光パターンＨＰは、主に、左側の走行車線および右側の対向車線の遠方側を広範囲に亘って拡散させて照明するものである。 The second lamp unit 3 emits a high beam light distribution pattern (traveling beam light distribution pattern) HP to the front of the vehicle C as shown in FIG. 5A by turning on the high beam light source. . The high beam light distribution patterns HP emitted from the left and right vehicle headlamps 1L and 1R are common. The high beam light distribution pattern HP has a horizontal cut-off line on the lower side. The lower part of the high beam light distribution pattern HP and the upper part of the low beam light distribution pattern LP overlap each other. The high beam light distribution pattern HP mainly illuminates the far side of the left traveling lane and the right opposite lane by diffusing over a wide range.
（第３ランプユニット４の説明）
　前記第３ランプユニット４は、この例では、プロジェクタタイプのランプユニットである。前記第３ランプユニット４は、ＡＤＢビーム光源と、リフレクタと、投影レンズと、シェードと、ヒートシンク部材と、ホルダと、から構成されている。前記ＡＤＢビーム光源は、この例では、半導体型光源であって、ＬＥＤ、ＯＥＬまたはＯＬＥＤ（有機ＥＬ）などの自発光半導体型光源を使用する。前記ＡＤＢビーム光源は、前記制御部８から出力される制御信号に基づいて時間的変化を伴う調光点消灯をする。 (Description of the third lamp unit 4)
In this example, the third lamp unit 4 is a projector type lamp unit. The third lamp unit 4 includes an ADB beam light source, a reflector, a projection lens, a shade, a heat sink member, and a holder. In this example, the ADB beam light source is a semiconductor light source, and uses a self-luminous semiconductor light source such as an LED, an OEL, or an OLED (organic EL). The ADB beam light source performs dimming on / off with time change based on a control signal output from the control unit 8.
　前記第３ランプユニット４は、前記ＡＤＢビーム光源の点灯により、図５（Ｂ）、（Ｃ）に示すように、ＡＤＢビーム配光パターン（ＡＤＢ用ビーム配光パターン）ＬＳＰ、ＲＳＰを前記車両Ｃの前方に照射するものである。右側の前記車両用前照灯１Ｒから照射される前記ＡＤＢビーム配光パターンＲＳＰは、右側専用であり、また、左側の前記車両用前照灯１Ｌから照射される前記ＡＤＢビーム配光パターンＬＳＰは、左側専用である。右側の前記ＡＤＢビーム配光パターンＲＳＰは、左側の垂直カットオフラインと、下側の水平カットオフラインと、を有する。左側の前記ＡＤＢビーム配光パターンＬＳＰは、右側の垂直カットオフラインと、下側の水平カットオフラインと、を有する。右側の前記ＡＤＢビーム配光パターンＲＳＰと左側の前記ＡＤＢビーム配光パターンＬＳＰとは、ほぼ左右対称（左右反転）である。右側の前記ＡＤＢビーム配光パターンＲＳＰと左側の前記ＡＤＢビーム配光パターンＬＳＰとを合成（重畳）すると、前記ハイビーム配光パターンＨＰとほぼ同形状の配光パターンとなる。また、左右両側の前記ＡＤＢビーム配光パターンＬＳＰ、ＲＳＰの下側の部分と前記ロービーム配光パターンＬＰの上側の部分とは、重なり合う。右側の前記ＡＤＢビーム配光パターンＲＳＰは、主に、右側の対向車線の側方（路肩など）を広範囲に亘って拡散させて照明するものである。左側の前記ＡＤＢビーム配光パターンＬＳＰは、主に、左側の走行車線の側方（路肩など）を広範囲に亘って拡散させて照明するものである。 When the ADB beam light source is turned on, the third lamp unit 4 converts the ADB beam light distribution patterns (ADB beam light distribution patterns) LSP and RSP into the vehicle C as shown in FIGS. It irradiates in front of. The ADB beam light distribution pattern RSP irradiated from the right vehicle headlamp 1R is exclusively for the right side, and the ADB beam light distribution pattern LSP irradiated from the left vehicle headlamp 1L is , For left side only. The right ADB beam distribution pattern RSP has a left vertical cut-off line and a lower horizontal cut-off line. The left ADB beam distribution pattern LSP has a right vertical cutoff line and a lower horizontal cutoff line. The ADB beam light distribution pattern RSP on the right side and the ADB beam light distribution pattern LSP on the left side are substantially bilaterally symmetric (horizontal inversion). When the ADB beam light distribution pattern RSP on the right side and the ADB beam light distribution pattern LSP on the left side are combined (superimposed), a light distribution pattern having substantially the same shape as the high beam light distribution pattern HP is obtained. Further, the lower portions of the left and right ADB beam light distribution patterns LSP and RSP overlap the upper portion of the low beam light distribution pattern LP. The ADB beam distribution pattern RSP on the right side mainly illuminates by diffusing the sides (road shoulders, etc.) of the opposite lane on the right side over a wide range. The ADB beam distribution pattern LSP on the left side mainly illuminates by diffusing the side of the left traveling lane (road shoulder, etc.) over a wide range.
（光軸調整装置５３、５４、５５の説明）
　前記光軸調整装置５３、５４、５５は、ピボット機構（５３）と、上下用のアジャストスクリューおよびスクリューマウンティング（５４）と、左右用のアジャストスクリューおよびスクリューマウンティング（５５）と、から構成されている。この結果、前記第１ランプユニット２および前記第２ランプユニット３および前記第３ランプユニット４は、前記第１取付部材５１および前記回動機構６および前記第２取付部材５２を介して、一体で光軸調整可能に構成されている。 (Explanation of optical axis adjusting devices 53, 54, 55)
The optical axis adjusting devices 53, 54, and 55 include a pivot mechanism (53), vertical adjustment screws and screw mountings (54), and left and right adjustment screws and screw mountings (55). . As a result, the first lamp unit 2, the second lamp unit 3, and the third lamp unit 4 are integrated with each other via the first mounting member 51, the rotating mechanism 6, and the second mounting member 52. The optical axis can be adjusted.
（回動機構６の説明）
　前記回動機構６は、ケーシング６０内に収納されている駆動部（図示せず）および駆動力伝達機構（図示せず）と、回転軸６１と、から構成されている。前記駆動部を駆動させることにより、前記駆動部の駆動力が前記駆動力伝達機構を介して前記回転軸６１に伝達される。この結果、前記回転軸６１が垂直軸（ほぼ垂直軸をも含む）Ｖ－Ｖ回りに回転する。 (Description of rotating mechanism 6)
The rotation mechanism 6 includes a drive unit (not shown) and a drive force transmission mechanism (not shown) housed in the casing 60, and a rotation shaft 61. By driving the driving unit, the driving force of the driving unit is transmitted to the rotating shaft 61 via the driving force transmission mechanism. As a result, the rotating shaft 61 rotates about the vertical axis (including substantially the vertical axis) VV.
　前記回動機構６の前記回転軸６１には、前記第１取付部材５１が固定されている。前記回動機構６の前記回転軸６１の前記垂直軸Ｖ－Ｖは、前記第３ランプユニット４の中央もしくはほぼ中央を通る。この結果、前記第３ランプユニット４は、前記第１取付部材５１を介して、前記回動機構６により、前記垂直軸Ｖ－Ｖ回りに回転可能に構成されている。 The first mounting member 51 is fixed to the rotating shaft 61 of the rotating mechanism 6. The vertical axis VV of the rotating shaft 61 of the rotating mechanism 6 passes through the center or almost the center of the third lamp unit 4. As a result, the third lamp unit 4 is configured to be rotatable about the vertical axis VV by the rotation mechanism 6 via the first mounting member 51.
　前記回動機構６は、前記第２取付部材５２に取り付けられている。前記第２取付部材５２は、前記光軸調整装置５３、５４、５５を介して前記ランプハウジング５に取り付けられている。前記回動機構６は、前記検出部７および前記制御部８を介して、駆動して、前記第３ランプユニット４を前記垂直軸Ｖ－Ｖ回りに回転させる。この結果、前記第３ランプユニット４の光軸は、前記車両Ｃの正面方向から前記車両Ｃの外側の所定角度までの範囲において、前記垂直軸Ｖ－Ｖ回りに無段階に回転する。これにより、前記ＡＤＢビーム配光パターンＬＳＰ、ＲＳＰは、スクリーンの上下の垂直線ＶＵ－ＶＤに対して左側、右側に、無段階に回転変化する。 The rotation mechanism 6 is attached to the second attachment member 52. The second attachment member 52 is attached to the lamp housing 5 via the optical axis adjusting devices 53, 54 and 55. The rotation mechanism 6 is driven via the detection unit 7 and the control unit 8 to rotate the third lamp unit 4 about the vertical axis VV. As a result, the optical axis of the third lamp unit 4 rotates steplessly around the vertical axis VV in a range from the front direction of the vehicle C to a predetermined angle outside the vehicle C. As a result, the ADB beam light distribution patterns LSP and RSP rotate steplessly on the left and right sides with respect to the vertical line VU-VD above and below the screen.
（検出部７の説明）
　前記検出部７は、対象車（対向車や先行車などの対象前方車）９の有無および前記対象車９との相対位置（相対距離、相対角度）などを検出して、前記検出信号を前記制御部８に出力するものである。前記検出部７は、たとえば、ＣＣＤカメラ（カメラセンサ）、車速センサなど、その他のセンサを使用する。 (Description of the detection unit 7)
The detection unit 7 detects the presence / absence of a target vehicle (target forward vehicle such as an oncoming vehicle or a preceding vehicle) 9 and a relative position (relative distance, relative angle) with respect to the target vehicle 9 and the like, and detects the detection signal. This is output to the control unit 8. The detection unit 7 uses other sensors such as a CCD camera (camera sensor) and a vehicle speed sensor, for example.
（制御部８の説明）
　前記制御部８は、たとえば、ＥＣＵなどを使用する。前記制御部８は、前記検出部７からの検出信号に基づいて前記車両用前照灯１Ｌ、１Ｒに制御信号を出力するものである。前記制御部８は、切替回路（照射部切替回路）８０を有する。前記制御部８は、前記灯室５０内に配置されている場合と前記灯室５０外に配置されている場合とがある。 (Description of control unit 8)
The control unit 8 uses, for example, an ECU. The control unit 8 outputs a control signal to the vehicle headlamps 1L and 1R based on a detection signal from the detection unit 7. The control unit 8 includes a switching circuit (irradiation unit switching circuit) 80. The control unit 8 may be disposed inside the lamp chamber 50 or may be disposed outside the lamp chamber 50.
　前記切替回路８０は、前記ロービーム光源、前記ハイビーム光源、前記ＡＤＢビーム光源（以下、単に「光源」と称する場合がある）の時間的変化を伴う調光制御、および、前記光源の調光点消灯の切替制御を行うものである。前記光源の調光制御は、たとえば、２進法パルス幅変調であって、ＯＮのパルス幅のデューティ比あるいはＯＦＦのパルス幅のデューティ比を減少増加させることにより行われる。前記光源の調光制御により、前記ロービーム配光パターンＬＰ、前記ハイビーム配光パターンＨＰ、前記ＡＤＢビーム配光パターンＬＳＰ、ＲＳＰの明るさ（光度、照度、輝度、光量など）を徐々に増加（漸増）させたり徐々に減少（漸減）させたりすることができる。 The switching circuit 80 performs dimming control with temporal change of the low beam light source, the high beam light source, and the ADB beam light source (hereinafter sometimes simply referred to as “light source”), and dimming of the light source is turned off. Switching control is performed. The light control of the light source is, for example, binary pulse width modulation, and is performed by decreasing and increasing the duty ratio of the ON pulse width or the OFF pulse width. By dimming control of the light source, the brightness (luminance, illuminance, luminance, light quantity, etc.) of the low beam light distribution pattern LP, the high beam light distribution pattern HP, the ADB beam light distribution pattern LSP, RSP is gradually increased (gradual increase). ) Or gradually decrease (decrease).
　すなわち、前記切替回路８０は、図４（Ａ）に示すように、前記ハイビーム配光パターンＨＰを照射する前記第２ランプユニット３の前記ハイビーム光源を、０％の消灯状態（完全消灯状態）から１００％の点灯状態（完全点灯状態）に時間的変化を伴う調光点灯をし（Ｙ１２、Ｙ１３を参照）、かつ、１００％の点灯状態から０％の消灯状態に時間的変化を伴う調光消灯をする（Ｙ１５を参照）。 That is, as shown in FIG. 4A, the switching circuit 80 switches the high beam light source of the second lamp unit 3 that irradiates the high beam light distribution pattern HP from a 0% extinction state (complete extinction state). Dimming with time change in 100% lighting state (complete lighting state) (see Y12, Y13) and dimming with time change from 100% lighting state to 0% off state Turn off the light (see Y15).
　また、前記切替回路８０は、図４（Ｂ）に示すように、前記ＡＤＢビーム配光パターンＬＳＰ、ＲＳＰを照射する前記第３ランプユニット４の前記ＡＤＢビーム光源を、０％の消灯状態（完全消灯状態）から１００％の点灯状態（完全点灯状態）に時間的変化を伴う調光点灯をし（Ｙ１５、Ｙ１６を参照）、かつ、１００％の点灯状態から０％の消灯状態に時間的変化を伴う調光消灯をする（Ｙ１２を参照）。 Further, as shown in FIG. 4B, the switching circuit 80 turns off the ADB beam light source of the third lamp unit 4 that emits the ADB beam light distribution patterns LSP and RSP in a 0% extinction state (completely). Dimming with time change from 100% lighting state to 100% lighting state (complete lighting state) (see Y15, Y16) and time change from 100% lighting state to 0% off state Dimming is turned off (see Y12).
　さらに、前記切替回路８０は、図示しないが、前記ロービーム配光パターンＬＰを照射する前記第１ランプユニット２の前記ロービーム光源を、０％の消灯状態（完全消灯状態）から１００％の点灯状態（完全点灯状態）に時間的変化を伴う調光点灯をし、かつ、１００％の点灯状態から０％の消灯状態に時間的変化を伴う調光消灯をする。なお、図４（Ｃ）においては、たとえば夜間走行などにより、前記第１ランプユニット２の前記ロービーム光源は、常時、１００％の点灯状態にある。 Further, although not shown, the switching circuit 80 changes the low beam light source of the first lamp unit 2 that irradiates the low beam light distribution pattern LP from a 0% off state (completely off state) to a 100% on state ( The dimming lighting with a temporal change is performed in the complete lighting state), and the dimming lighting with a temporal change is performed from the lighting state of 100% to the extinguishing state of 0%. In FIG. 4C, the low beam light source of the first lamp unit 2 is always in a 100% lighting state, for example, during night driving.
　前記切替回路８０は、図４（Ａ）、（Ｂ）に示すように、前記第２ランプユニット３の前記ハイビーム光源の調光消灯時間（Ｙ１５）および前記第３ランプユニット４の前記ＡＤＢビーム光源の調光消灯時間（Ｙ１２）が、前記第２ランプユニット３の前記ハイビーム光源の調光点灯時間（Ｙ１２＋Ｙ１３）および前記第３ランプユニット４の前記ＡＤＢビーム光源の調光点灯時間（Ｙ１５＋Ｙ１６）よりも、短くなるように、前記光源の調光点消灯の切替制御を行うものである。 As shown in FIGS. 4A and 4B, the switching circuit 80 includes a dimming extinction time (Y15) of the high beam light source of the second lamp unit 3 and the ADB beam light source of the third lamp unit 4. The dimming turn-off time (Y12) of the second lamp unit 3 is higher than the dimming turn-on time (Y12 + Y13) of the high beam light source and the dimming turn-on time (Y15 + Y16) of the ADB beam light source of the third lamp unit 4. In order to shorten the light source, the dimming point on / off switching control of the light source is performed.
　前記切替回路８０は、図４（Ａ）、（Ｂ）に示すように、前記第２ランプユニット３の前記ハイビーム光源の調光消灯時間（Ｙ１５）が、前記第３ランプユニット４の前記ＡＤＢビーム光源の調光点灯時間（Ｙ１５＋Ｙ１６）よりも、短くなるように、前記光源の調光点消灯の切替制御を行うものである。 As shown in FIGS. 4A and 4B, the switching circuit 80 determines that the dimming turn-off time (Y15) of the high beam light source of the second lamp unit 3 is the ADB beam of the third lamp unit 4. The light source dimming switching on / off control of the light source is performed so as to be shorter than the dimming lighting time (Y15 + Y16) of the light source.
（実施形態１の作用の説明）
　この実施形態１にかかる車両用前照灯装置は、以上のごとき構成からなり、以下、その作用について説明する。 (Description of the operation of the first embodiment)
The vehicle headlamp device according to the first embodiment has the above-described configuration, and the operation thereof will be described below.
　まず、図４（Ｃ）に示すように、車両Ｃがたとえば夜間走行などにより、第１ランプユニット２のロービーム光源が常時１００％の点灯状態にある。この状態において、図６に示すように、車両Ｃ（この実施形態１の作用の説明においては自車両）の前方に対象車９（この実施形態１の作用の説明においては対向車両）が有ると、図４（Ａ）、（Ｂ）のＹ１１に示すように、第２ランプユニット３のハイビーム光源が０％の消灯状態にあり、一方、第３ランプユニット４のＡＤＢビーム光源が１００％の点灯状態にある。この結果、図６に示すように、車両Ｃの前方には、ロービーム配光パターンＬＰと、左右両側のＡＤＢビーム配光パターンＬＳＰ、ＲＳＰが照射されていて、かつ、右側のＡＤＢビーム配光パターンＲＳＰが対象車９の接近に伴って右側に無段階に回転変化している。これにより、左側のＡＤＢビーム配光パターンＬＳＰの右側の垂直カットオフラインと、右側のＡＤＢビーム配光パターンＲＳＰの左側の垂直カットオフラインとの間に、対象車９が位置するので、対象車９にグレアを与えるようなことがない。 First, as shown in FIG. 4C, the low-beam light source of the first lamp unit 2 is always in a 100% lighting state, for example, when the vehicle C travels at night. In this state, as shown in FIG. 6, when there is a target vehicle 9 (an oncoming vehicle in the description of the operation of the first embodiment) ahead of the vehicle C (the own vehicle in the description of the operation of the first embodiment). 4A and 4B, the high beam light source of the second lamp unit 3 is 0% off, while the ADB beam light source of the third lamp unit 4 is turned on 100%. Is in a state. As a result, as shown in FIG. 6, the low beam distribution pattern LP and the left and right ADB beam distribution patterns LSP and RSP are irradiated in front of the vehicle C, and the right ADB beam distribution pattern. As the target vehicle 9 approaches, the RSP rotates steplessly on the right side. As a result, the target vehicle 9 is positioned between the right vertical cutoff line of the left ADB beam light distribution pattern LSP and the left vertical cutoff line of the right ADB beam light distribution pattern RSP. There is no glare.
　つぎに、図７に示すように、先の対象車９（図６に示す対象車９）がそのまますれ違う場合であって、かつ、他の対象車９が無いと、図４（Ａ）、（Ｂ）のＹ１２に示すように、第２ランプユニット３のハイビーム光源が０％の消灯状態から調光点灯を開始し、一方、第３ランプユニット４のＡＤＢビーム光源が１００％の点灯状態から調光消灯を開始する。この結果、図７に示すように、車両Ｃの前方には、ロービーム配光パターンＬＰと、ハイビーム配光パターンＨＰと、左右両側のＡＤＢビーム配光パターンＬＳＰ、ＲＳＰとが照射されている。これにより、遠方の視認性を確保することができる。 Next, as shown in FIG. 7, when the previous target vehicle 9 (target vehicle 9 shown in FIG. 6) passes as it is and there is no other target vehicle 9, FIG. As indicated by Y12 in B), the high beam light source of the second lamp unit 3 starts dimming from 0% off, while the ADB beam light source of the third lamp unit 4 is adjusted from 100% on. Start turning off the light. As a result, as shown in FIG. 7, the vehicle C is irradiated with a low beam light distribution pattern LP, a high beam light distribution pattern HP, and left and right ADB beam light distribution patterns LSP and RSP. Thereby, distant visibility can be ensured.
　それから、図８に示すように、対象車９が無いと、図４（Ａ）、（Ｂ）のＹ１３に示すように、第２ランプユニット３のハイビーム光源が調光点灯状態を維持し、一方、第３ランプユニット４のＡＤＢビーム光源が０％の消灯状態となる。かつ、図４（Ａ）、（Ｂ）のＹ１４に示すように、第２ランプユニット３のハイビーム光源が１００％の点灯状態を維持する。この結果、図８に示すように、車両Ｃの前方には、ロービーム配光パターンＬＰと、ハイビーム配光パターンＨＰとが照射されている。これにより、遠方の視認性の確保が維持される。 Then, as shown in FIG. 8, when there is no target vehicle 9, the high beam light source of the second lamp unit 3 maintains the dimming lighting state, as indicated by Y13 in FIGS. 4 (A) and 4 (B). The ADB beam light source of the third lamp unit 4 is turned off at 0%. And as shown to Y14 of FIG. 4 (A), (B), the high beam light source of the 2nd lamp unit 3 maintains a 100% lighting state. As a result, as shown in FIG. 8, a low beam light distribution pattern LP and a high beam light distribution pattern HP are irradiated in front of the vehicle C. Thereby, ensuring of the distant visibility is maintained.
　ここで、検出部７が対象車９を検出し、かつ、ＡＤＢビーム配光パターンＬＳＰ、ＲＳＰであれば対象車９にグレアを与えない場合は、図４（Ａ）、（Ｂ）のＹ１５に示すように、第２ランプユニット３のハイビーム光源が１００％の点灯状態から調光消灯を開始し、一方、第３ランプユニット４のＡＤＢビーム光源が０％の消灯状態から調光点灯を開始する。この結果、図７に示すように、車両Ｃの前方には、ロービーム配光パターンＬＰと、ハイビーム配光パターンＨＰと、左右両側のＡＤＢビーム配光パターンＬＳＰ、ＲＳＰとが照射されている。このとき、右側のＡＤＢビーム配光パターンＲＳＰが右側に若干回転変化しているので、左側のＡＤＢビーム配光パターンＬＳＰの右側の垂直カットオフラインと、右側のＡＤＢビーム配光パターンＲＳＰの左側の垂直カットオフラインとの間には若干の隙間が存在する。この隙間に対象車（図７中図示せず）が位置するので、対象車にグレアを与えるようなことがなく、かつ、遠方の視認性を確保することができる。 Here, if the detection unit 7 detects the target vehicle 9 and does not give glare to the target vehicle 9 if it is the ADB beam light distribution pattern LSP, RSP, Y15 in FIGS. 4 (A) and 4 (B). As shown, the dimming lighting starts when the high beam light source of the second lamp unit 3 is turned on at 100%, while the dimming lighting starts when the ADB beam light source of the third lamp unit 4 is turned off at 0%. . As a result, as shown in FIG. 7, the vehicle C is irradiated with a low beam light distribution pattern LP, a high beam light distribution pattern HP, and left and right ADB beam light distribution patterns LSP and RSP. At this time, since the right ADB beam light distribution pattern RSP is slightly rotated to the right, the right vertical cutoff line of the left ADB beam light distribution pattern LSP and the left vertical of the right ADB beam light distribution pattern RSP are displayed. There is a slight gap between it and the cut-off line. Since the target vehicle (not shown in FIG. 7) is located in this gap, glare is not given to the target vehicle, and distant visibility can be ensured.
　それから、図６に示すように、対象車９が接近すると、図４（Ａ）、（Ｂ）のＹ１６に示すように、第２ランプユニット３のハイビーム光源が０％の消灯状態となり、一方、第３ランプユニット４のＡＤＢビーム光源が調光点灯状態を維持する。かつ、図４（Ａ）、（Ｂ）のＹ１７に示すように、第３ランプユニット４のＡＤＢビーム光源が１００％の点灯状態を維持する。この結果、図６に示すように、車両Ｃの前方には、ロービーム配光パターンＬＰと、左右両側のＡＤＢビーム配光パターンＬＳＰ、ＲＳＰが照射されていて、かつ、右側のＡＤＢビーム配光パターンＲＳＰが対象車９の接近に伴って右側に無段階に回転変化している。これにより、左側のＡＤＢビーム配光パターンＬＳＰの右側の垂直カットオフラインと、右側のＡＤＢビーム配光パターンＲＳＰの左側の垂直カットオフラインとの間に、対象車９が位置するので、対象車９にグレアを与えるようなことがない。 Then, as shown in FIG. 6, when the target vehicle 9 approaches, the high beam light source of the second lamp unit 3 is turned off at 0%, as indicated by Y16 in FIGS. 4 (A) and 4 (B). The ADB beam light source of the third lamp unit 4 maintains the dimming lighting state. And as shown to Y17 of FIG. 4 (A), (B), the ADB beam light source of the 3rd lamp unit 4 maintains a 100% lighting state. As a result, as shown in FIG. 6, the low beam distribution pattern LP and the left and right ADB beam distribution patterns LSP and RSP are irradiated in front of the vehicle C, and the right ADB beam distribution pattern. As the target vehicle 9 approaches, the RSP rotates steplessly on the right side. As a result, the target vehicle 9 is positioned between the right vertical cutoff line of the left ADB beam light distribution pattern LSP and the left vertical cutoff line of the right ADB beam light distribution pattern RSP. There is no glare.
（実施形態１の効果の説明）
　この実施形態１にかかる車両用前照灯装置は、以上のごとき構成および作用からなり、以下、その効果について説明する。 (Description of the effect of Embodiment 1)
The vehicle headlamp device according to the first embodiment has the above-described configuration and operation, and the effects thereof will be described below.
　この実施形態１にかかる車両用前照灯装置は、図４（Ａ）に示すように、ハイビーム配光パターンＨＰを照射する第２ランプユニット３のハイビーム光源を、０％の消灯状態から１００％の点灯状態に時間的変化を伴う調光点灯をし（Ｙ１２、Ｙ１３を参照）、かつ、１００％の点灯状態から０％の消灯状態に時間的変化を伴う調光消灯する（Ｙ１５を参照）。また、この実施形態１にかかる車両用前照灯装置は、図４（Ｂ）に示すように、ＡＤＢビーム配光パターンＬＳＰ、ＲＳＰを照射する第３ランプユニット４のＡＤＢビーム光源を、０％の消灯状態から１００％の点灯状態に時間的変化を伴う調光点灯をし（Ｙ１５、Ｙ１６を参照）、かつ、１００％の点灯状態から０％の消灯状態に時間的変化を伴う調光消灯する（Ｙ１２を参照）。すなわち、この実施形態１にかかる車両用前照灯装置は、配光パターンを、図４（Ａ）、（Ｂ）のＹ１２、Ｙ１３に示すように、ＡＤＢビーム配光パターンＬＳＰ、ＲＳＰからハイビーム配光パターンＨＰに変化（遷移）する際に、また、図４（Ａ）、（Ｂ）のＹ１５、Ｙ１６に示すように、ハイビーム配光パターンＨＰからＡＤＢビーム配光パターンＬＳＰ、ＲＳＰに変化（遷移）する際に、時間的変化を伴うので、ドライバーの眼精疲労や違和感を軽減することができる。 As shown in FIG. 4A, the vehicle headlamp device according to the first embodiment changes the high beam light source of the second lamp unit 3 that irradiates the high beam light distribution pattern HP from 100% off to 100%. Dimming with time change in the lighting state (see Y12, Y13) and dimming with time change from 100% lighting state to 0% off state (see Y15) . Further, as shown in FIG. 4B, the vehicle headlamp device according to the first embodiment uses 0% of the ADB beam light source of the third lamp unit 4 that emits the ADB beam light distribution patterns LSP and RSP. Dimming lighting with time change from 100% lighting state to 100% lighting state (see Y15, Y16), and dimming lighting with time change from 100% lighting state to 0% lighting off state (Refer to Y12). That is, in the vehicle headlamp device according to the first embodiment, the light distribution pattern is changed from the ADB beam light distribution pattern LSP, RSP to the high beam distribution pattern as indicated by Y12, Y13 in FIGS. When changing (transitioning) to the light pattern HP, and as indicated by Y15 and Y16 in FIGS. 4A and 4B, changes (transitions) from the high beam light distribution pattern HP to the ADB beam light distribution patterns LSP and RSP. ) Is accompanied by changes over time, so that the driver's eyestrain and discomfort can be reduced.
　この実施形態１にかかる車両用前照灯装置は、図４（Ａ）、（Ｂ）に示すように、第２ランプユニット３のハイビーム光源の調光消灯時間（Ｙ１５）および第３ランプユニット４のＡＤＢビーム光源の調光消灯時間（Ｙ１２）が、第２ランプユニット３のハイビーム光源の調光点灯時間（Ｙ１２＋Ｙ１３）および第３ランプユニット４のＡＤＢビーム光源の調光点灯時間（Ｙ１５＋Ｙ１６）よりも、短い。この結果、この実施形態１にかかる車両用前照灯装置は、対象車９が有る場合には、ハイビーム配光パターンＨＰやＡＤＢビーム配光パターンＬＳＰ、ＲＳＰからロービーム配光パターンＬＰに速やかに切り替えることができ、対象車９にグレアを与えるようなことが無い。また、ロービーム配光パターンＬＰから、対象車９が無い場合にはハイビーム配光パターンＨＰに、あるいは、対象車９を避けて照射することができる場合にはＡＤＢビーム配光パターンＬＳＰ、ＲＳＰに、緩やかに切り替えることができ、ドライバーの眼精疲労や違和感を軽減することができる。 As shown in FIGS. 4A and 4B, the vehicle headlamp device according to the first embodiment includes a dimming turn-off time (Y15) of the high beam light source of the second lamp unit 3 and the third lamp unit 4. The dimming turn-off time (Y12) of the ADB beam light source is higher than the dimming turn-on time (Y12 + Y13) of the high beam light source of the second lamp unit 3 and the dimming turn-on time (Y15 + Y16) of the ADB beam light source of the third lamp unit 4 ,short. As a result, the vehicle headlamp device according to the first embodiment quickly switches from the high beam light distribution pattern HP or the ADB beam light distribution pattern LSP, RSP to the low beam light distribution pattern LP when the target vehicle 9 is present. And no glare is given to the target vehicle 9. Further, from the low beam light distribution pattern LP, when there is no target vehicle 9, the high beam light distribution pattern HP, or when the target vehicle 9 can be irradiated while avoiding the ADB beam light distribution pattern LSP, RSP, It can be switched slowly, reducing the driver's eyestrain and discomfort.
　この実施形態１にかかる車両用前照灯装置においては、ハイビーム配光パターンＨＰが照射中において、検出部７が対象車９を検出し、かつ、ＡＤＢビーム配光パターンＬＳＰ、ＲＳＰであれば対象車９にグレアを与えない場合は、ハイビーム配光パターンＨＰからＡＤＢビーム配光パターンＬＳＰ、ＲＳＰに切り替える。このとき、この実施形態１にかかる車両用前照灯装置は、第２ランプユニット３のハイビーム光源の調光消灯時間（Ｙ１５）が、第３ランプユニット４のＡＤＢビーム光源の調光点灯時間（Ｙ１５＋Ｙ１６）よりも、短い。この結果、この実施形態１にかかる車両用前照灯装置は、対象車９にグレアを与えないように、ハイビーム配光パターンＨＰを速やかに調光消灯することができる。 In the vehicular headlamp device according to the first embodiment, the detection unit 7 detects the target vehicle 9 while the high beam light distribution pattern HP is being irradiated, and the target is the ADB beam light distribution pattern LSP, RSP. When glare is not given to the vehicle 9, the high beam light distribution pattern HP is switched to the ADB beam light distribution pattern LSP, RSP. At this time, in the vehicle headlamp device according to the first embodiment, the dimming turn-off time (Y15) of the high beam light source of the second lamp unit 3 is the dimming lighting time (Y15) of the ADB beam light source of the third lamp unit 4 ( Shorter than Y15 + Y16). As a result, the vehicular headlamp apparatus according to the first embodiment can quickly dimm the high beam light distribution pattern HP so as not to give glare to the target vehicle 9.
　この実施形態１にかかる車両用前照灯装置においては、ＡＤＢビーム配光パターンＬＳＰ、ＲＳＰが照射中において、検出部７により対象車９が検出されなくなった場合は、ＡＤＢビーム配光パターンＬＳＰ、ＲＳＰからハイビーム配光パターンＨＰに切り替える。このとき、この実施形態１にかかる車両用前照灯装置は、第２ランプユニット３のハイビーム光源の調光点灯時間（Ｙ１２＋Ｙ１３）が、第３ランプユニット４のＡＤＢビーム光源の調光消灯時間（Ｙ１２）よりも、長い。この結果、この実施形態１にかかる車両用前照灯装置は、ドライバーに眼精疲労や違和感を与えないように、ハイビーム配光パターンＨＰを緩やかに調光点灯することができる。 In the vehicle headlamp device according to the first embodiment, when the target vehicle 9 is not detected by the detection unit 7 while the ADB beam light distribution pattern LSP, RSP is being irradiated, the ADB beam light distribution pattern LSP, Switch from RSP to high beam distribution pattern HP. At this time, in the vehicle headlamp device according to the first embodiment, the dimming lighting time (Y12 + Y13) of the high beam light source of the second lamp unit 3 is the dimming extinction time (Y12 + Y13) of the ADB beam light source of the third lamp unit 4 ( Longer than Y12). As a result, the vehicular headlamp device according to the first embodiment can dimly light the high beam light distribution pattern HP gently so as not to give eyestrain and discomfort to the driver.
　この実施形態１にかかる車両用前照灯装置は、第２ランプユニット３のハイビーム光源の調光消灯時間（Ｙ１５）が、第３ランプユニット４のＡＤＢビーム光源の調光点灯時間（Ｙ１５＋Ｙ１６）よりも、短い。このために、ハイビーム光源が０％に完全消灯した時点（Ｙ１５とＹ１６との間の時点）においては、図４（Ｂ）に示すように、ＡＤＢビーム光源がＸ％の調光点灯状態にある。これにより、歩行者や自転車に乗っている人が「車両Ｃの車両用前照灯１Ｌ、１Ｒが一瞬消灯した（パッシングされた）」と誤認するようなことがない。また、ドライバーは、配光がハイビーム配光パターンＨＰからＡＤＢビーム配光パターンＬＳＰ、ＲＳＰに切り替わった（すなわち、配光パターンの照射範囲が変わった）ことを明確に認識することができる。 In the vehicle headlamp device according to the first embodiment, the dimming turn-off time (Y15) of the high beam light source of the second lamp unit 3 is longer than the dimming lighting time (Y15 + Y16) of the ADB beam light source of the third lamp unit 4. Even short. For this reason, when the high beam light source is completely extinguished at 0% (between Y15 and Y16), the ADB beam light source is in the dimming lighting state of X% as shown in FIG. . Thereby, a pedestrian or a person riding a bicycle does not mistakenly say that the vehicle headlamps 1L and 1R of the vehicle C are turned off (passed) for a moment. Further, the driver can clearly recognize that the light distribution has been switched from the high beam light distribution pattern HP to the ADB beam light distribution patterns LSP and RSP (that is, the irradiation range of the light distribution pattern has changed).
　すなわち、配光がハイビーム配光パターンＨＰからＡＤＢビーム配光パターンＬＳＰ、ＲＳＰに切り替わる場合において、ハイビーム光源が１００％の点灯状態から一気に０％に完全消灯した時点（図４のＹ１４とＹ１５との間の時点）では、一瞬ではあるが、ＡＤＢビーム光源が０％の消灯状態にある。このために、歩行者や自転車に乗っている人が「車両Ｃの車両用前照灯１Ｌ、１Ｒが一瞬消灯した（パッシングされた）」と誤認するようなことがある。ところが、この実施形態１にかかる車両用前照灯装置は、前記の誤認を防止することができる。 That is, when the light distribution is switched from the high beam distribution pattern HP to the ADB beam distribution pattern LSP, RSP, when the high beam light source is completely extinguished from 100% to 0% at once (Y14 and Y15 in FIG. 4). In the meantime, the ADB beam light source is in a 0% extinguished state although it is instantaneous. For this reason, a pedestrian or a person riding a bicycle may mistakenly say that “the vehicle headlamps 1L and 1R of the vehicle C are turned off for a moment (passed)”. However, the vehicular headlamp apparatus according to the first embodiment can prevent the above-described misidentification.
　また、配光がハイビーム配光パターンＨＰからＡＤＢビーム配光パターンＬＳＰ、ＲＳＰに切り替わる場合において、ハイビーム光源の調光消灯時間が、ＡＤＢビーム光源の調光点灯時間（Ｙ１５＋Ｙ１６）と同一であると、ドライバーは、配光がハイビーム配光パターンＨＰからＡＤＢビーム配光パターンＬＳＰ、ＲＳＰに切り替わった（すなわち、配光パターンの照射範囲が変わった）ことを明確に認識することができない。ところが、この実施形態１にかかる車両用前照灯装置は、ドライバーが、配光がハイビーム配光パターンＨＰからＡＤＢビーム配光パターンＬＳＰ、ＲＳＰに切り替わった（すなわち、配光パターンの照射範囲が変わった）ことを明確に認識することができる。 Further, when the light distribution is switched from the high beam light distribution pattern HP to the ADB beam light distribution pattern LSP, RSP, the dimming extinction time of the high beam light source is the same as the dimming lighting time (Y15 + Y16) of the ADB beam light source. The driver cannot clearly recognize that the light distribution has been switched from the high beam light distribution pattern HP to the ADB beam light distribution patterns LSP and RSP (that is, the irradiation range of the light distribution pattern has changed). However, in the vehicle headlamp device according to the first embodiment, the driver switches the light distribution from the high beam light distribution pattern HP to the ADB beam light distribution pattern LSP, RSP (that is, the irradiation range of the light distribution pattern changes). Can be clearly recognized.
（実施形態２の構成、作用、効果の説明）
　図９は、この発明にかかる車両用前照灯装置の実施形態２を示す。図中、図１～図８と同符号は、同一のものを示す。以下、この実施形態２における車両用前照灯装置の構成について説明する。 (Description of configuration, action, and effect of embodiment 2)
FIG. 9 shows Embodiment 2 of the vehicle headlamp device according to the present invention. In the figure, the same reference numerals as those in FIGS. 1 to 8 denote the same components. Hereinafter, the configuration of the vehicle headlamp apparatus according to the second embodiment will be described.
　この実施形態２にかかる車両用前照灯装置は、図９（Ａ）、（Ｂ）の実線に示すように、第２ランプユニット３のハイビーム光源と第３ランプユニット４のＡＤＢビーム光源とを排他的に調光点消灯しても良いし、あるいは、図９（Ａ）、（Ｂ）の一点鎖線に示すように、第２ランプユニット３のハイビーム光源と第３ランプユニット４のＡＤＢビーム光源とを重複して調光点消灯しても良い。 The vehicle headlamp device according to the second embodiment includes a high beam light source of the second lamp unit 3 and an ADB beam light source of the third lamp unit 4 as shown by solid lines in FIGS. 9A and 9B. The dimming point may be turned off exclusively, or the high beam light source of the second lamp unit 3 and the ADB beam light source of the third lamp unit 4 as shown by the alternate long and short dash lines in FIGS. And the dimming point may be turned off.
　この実施形態２にかかる車両用前照灯装置は、図９（Ａ）、（Ｂ）に示すように、第２ランプユニット３のハイビーム光源の調光消灯時間（Ｙ２７）および第３ランプユニット４のＡＤＢビーム光源の調光消灯時間（Ｙ２３、あるいは、Ｙ２７）が、第２ランプユニット３のハイビーム光源の調光点灯時間（Ｙ２５）および第３ランプユニット４のＡＤＢビーム光源の調光点灯時間（Ｙ２１、あるいは、Ｙ２５）よりも、短い。 As shown in FIGS. 9A and 9B, the vehicle headlamp device according to the second embodiment includes a dimming extinction time (Y27) of the high beam light source of the second lamp unit 3 and the third lamp unit 4. The dimming turn-off time (Y23 or Y27) of the ADB beam light source of the second lamp unit 3 is the dimming turn-on time (Y25) of the high beam light source of the second lamp unit 3 and the dimming turn-on time of the ADB beam light source of the third lamp unit 4 ( Shorter than Y21 or Y25).
　なお、図９（Ａ）、（Ｂ）において、Ｙ２２は、第３ランプユニット４のＡＤＢビーム光源が１００％の点灯状態である。Ｙ２４は、第２ランプユニット３のハイビーム光源および第３ランプユニット４のＡＤＢビーム光源が０％の消灯状態である。Ｙ２６は、第２ランプユニット３のハイビーム光源、あるいは、第２ランプユニット３のハイビーム光源および第３ランプユニット４のＡＤＢビーム光源が１００％の点灯状態である。Ｙ２８は、第２ランプユニット３のハイビーム光源および第３ランプユニット４のＡＤＢビーム光源が０％の消灯状態である。 In FIGS. 9A and 9B, Y22 is a lighting state in which the ADB beam light source of the third lamp unit 4 is 100%. Y24 is a 0% off state of the high beam light source of the second lamp unit 3 and the ADB beam light source of the third lamp unit 4. Y26 is a lighting state in which the high beam light source of the second lamp unit 3 or the high beam light source of the second lamp unit 3 and the ADB beam light source of the third lamp unit 4 is 100%. Y28 is a 0% off state of the high beam light source of the second lamp unit 3 and the ADB beam light source of the third lamp unit 4.
　この実施形態２にかかる車両用前照灯装置は、図９（Ａ）、（Ｂ）に示すように、第２ランプユニット３のハイビーム光源の調光消灯時間（Ｙ２７）および第３ランプユニット４のＡＤＢビーム光源の調光消灯時間（Ｙ２３、あるいは、Ｙ２７）が、第２ランプユニット３のハイビーム光源の調光点灯時間（Ｙ２５）および第３ランプユニット４のＡＤＢビーム光源の調光点灯時間（Ｙ２１、あるいは、Ｙ２５）よりも、短い。この結果、この実施形態２にかかる車両用前照灯装置は、他の車両（対象車９）が有る場合には、ハイビーム配光パターンＨＰやＡＤＢビーム配光パターンＬＳＰ、ＲＳＰからロービーム配光パターンＬＰに速やかに切り替えることができ、他の車両にグレアを与えるようなことが無い。また、ロービーム配光パターンＬＰから、他の車両が無い場合にはハイビーム配光パターンＨＰに、あるいは、他の車両を避けて照射することができる場合にはＡＤＢビーム配光パターンＬＳＰ、ＲＳＰに、緩やかに切り替えることができ、ドライバーの眼精疲労や違和感を軽減することができる。 As shown in FIGS. 9A and 9B, the vehicle headlamp device according to the second embodiment includes a dimming extinction time (Y27) of the high beam light source of the second lamp unit 3 and the third lamp unit 4. The dimming turn-off time (Y23 or Y27) of the ADB beam light source of the second lamp unit 3 is the dimming turn-on time (Y25) of the high beam light source of the second lamp unit 3 and the dimming turn-on time of the ADB beam light source of the third lamp unit 4 ( Shorter than Y21 or Y25). As a result, the vehicular headlamp apparatus according to the second embodiment has a low beam distribution pattern from the high beam distribution pattern HP, the ADB beam distribution pattern LSP, and the RSP when there is another vehicle (target vehicle 9). It is possible to quickly switch to LP, and no glare is given to other vehicles. Further, from the low beam light distribution pattern LP, when there is no other vehicle, to the high beam light distribution pattern HP, or when it can be irradiated while avoiding other vehicles, to the ADB beam light distribution pattern LSP, RSP, It can be switched slowly, reducing the driver's eyestrain and discomfort.
（実施形態３の構成、作用、効果の説明）
　図１０は、この発明にかかる車両用前照灯装置の実施形態３を示す。図中、図１～図９と同符号は、同一のものを示す。以下、この実施形態３における車両用前照灯装置の構成について説明する。 (Description of configuration, operation, and effect of Embodiment 3)
FIG. 10 shows Embodiment 3 of the vehicle headlamp device according to the present invention. In the figure, the same reference numerals as those in FIGS. 1 to 9 denote the same components. Hereinafter, the configuration of the vehicle headlamp apparatus according to the third embodiment will be described.
　この実施形態３にかかる車両用前照灯装置は、図１０（Ａ）、（Ｂ）の実線に示すように、第２ランプユニット３のハイビーム光源と第３ランプユニット４のＡＤＢビーム光源とを排他的に調光点消灯しても良いし、あるいは、図１０（Ａ）、（Ｂ）の一点鎖線に示すように、第２ランプユニット３のハイビーム光源と第３ランプユニット４のＡＤＢビーム光源とを重複して調光点消灯しても良い。 The vehicle headlamp device according to the third embodiment includes a high beam light source of the second lamp unit 3 and an ADB beam light source of the third lamp unit 4 as shown by solid lines in FIGS. 10 (A) and 10 (B). The dimming point may be turned off exclusively, or the high beam light source of the second lamp unit 3 and the ADB beam light source of the third lamp unit 4 as shown by the alternate long and short dashed lines in FIGS. And the dimming point may be turned off.
　この実施形態３にかかる車両用前照灯装置は、図１０（Ａ）に示すように、第２ランプユニット３のハイビーム光源が、０％の消灯状態から１００％の点灯状態に時間的変化を伴う調光点灯をし（Ｙ３４）、かつ、１００％の点灯状態から０％の消灯状態に時間的変化を伴う調光消灯をする（Ｙ３６）。また、この実施形態３にかかる車両用前照灯装置は、図１０（Ｂ）に示すように、第３ランプユニット４のＡＤＢビーム光源が、０％の消灯状態から１００％の点灯状態に時間的変化を伴う調光点灯をし（Ｙ３２、Ｙ３６）、かつ、１００％の点灯状態から０％の消灯状態に時間的変化を伴う調光消灯をする（Ｙ３４）。 In the vehicle headlamp apparatus according to the third embodiment, as shown in FIG. 10A, the high beam light source of the second lamp unit 3 changes over time from a 0% off state to a 100% on state. The dimming is turned on (Y34), and the dimming is turned off with time change from the 100% on state to the 0% off state (Y36). Further, in the vehicle headlamp device according to the third embodiment, as shown in FIG. 10B, the ADB beam light source of the third lamp unit 4 takes time from the 0% off state to the 100% on state. The dimming is turned on with a change in time (Y32, Y36), and the dimming is turned off with a temporal change from a 100% lighting state to a 0% off state (Y34).
　なお、図１０（Ａ）、（Ｂ）において、Ｙ３１は、第１ランプユニット２のロービーム光源のみが１００％の点灯状態である。Ｙ３３は、第１ランプユニット２のロービーム光源と第３ランプユニット４のＡＤＢビーム光源とが１００％の点灯状態である。Ｙ３５は、第１ランプユニット２のロービーム光源と第２ランプユニット３のハイビーム光源とが、あるいは、第１ランプユニット２のロービーム光源と第２ランプユニと３のハイビーム光源と第３ランプユニット４のＡＤＢビーム光源とが、１００％の点灯状態である。Ｙ３７は、第１ランプユニット２のロービーム光源のみが１００％の点灯状態である。 In FIGS. 10A and 10B, Y31 is in the lighting state in which only the low beam light source of the first lamp unit 2 is 100%. Y33 is a lighting state in which the low beam light source of the first lamp unit 2 and the ADB beam light source of the third lamp unit 4 are 100%. Y35 is the low beam light source of the first lamp unit 2 and the high beam light source of the second lamp unit 3, or the low beam light source of the first lamp unit 2, the second lamp uni, the high beam light source of 3, and the ADB of the third lamp unit 4. The beam light source is in a 100% lighting state. Y37 is a lighting state in which only the low beam light source of the first lamp unit 2 is 100%.
　また、図示しないが、第１ランプユニット２のロービーム光源が、０％の消灯状態から１００％の点灯状態に時間的変化を伴う調光点灯をし、かつ、１００％の点灯状態から０％の消灯状態に時間的変化を伴う調光消灯をするように制御されている。 In addition, although not shown, the low beam light source of the first lamp unit 2 performs dimming lighting with a time change from 0% extinguishing state to 100% lighting state, and 0% from 100% lighting state. It is controlled to turn off the dimming accompanied by a temporal change in the extinguished state.
　この実施形態３にかかる車両用前照灯装置は、以上のごとき構成作用からなるので、ハイビーム配光パターンＨＰやＡＤＢビーム配光パターンＬＳＰ、ＲＳＰ（ロービーム配光パターンＬＰを含む）が点消灯する際に、時間的変化を伴うので、ドライバーの眼精疲労や違和感を軽減することができる。 Since the vehicular headlamp apparatus according to the third embodiment is configured as described above, the high beam light distribution pattern HP, the ADB beam light distribution pattern LSP, and RSP (including the low beam light distribution pattern LP) are turned on and off. In some cases, the time change is accompanied, so that the driver's eyestrain and discomfort can be reduced.
（実施形態１、２、３以外の例の説明）
　この実施形態１においては、車両Ｃが左側通行の場合の車両用前照灯１Ｌ、１Ｒについて説明するものである。ところが、この発明においては、車両Ｃが右側通行の場合の車両用前照灯装置にも適用することができる。 (Description of examples other than Embodiments 1, 2, and 3)
In the first embodiment, vehicle headlamps 1L and 1R when the vehicle C is on the left side will be described. However, the present invention can also be applied to a vehicle headlamp device when the vehicle C is right-hand traffic.
　また、この実施形態１、２、３においては、ハイビーム配光パターンＨＰが下側に水平カットオフラインを有する長円形の２分の１の形状をなすものである。ところが、この発明においては、ハイビーム配光パターンの形状は特に限定しない。たとえば、長円形の形状などであっても良い。 In the first, second, and third embodiments, the high beam light distribution pattern HP has an oval half shape having a horizontal cut-off line on the lower side. However, in the present invention, the shape of the high beam light distribution pattern is not particularly limited. For example, an oval shape may be used.
　さらに、この実施形態１、２、３においては、ＡＤＢビーム配光パターンＬＨＰ、ＲＨＰが長円形の４分の１の形状をなすものである。ところが、この発明においては、ＡＤＢビーム配光パターンの形状は特に限定しない。たとえば、垂直カットオフラインを１辺とする三角形形状、あるいは、垂直カットオフラインで切断した長円形の２分の１の形状、あるいは、垂直カットオフラインと水平カットオフラインで切断した長円形の４分の３の形状などであっても良い。 Furthermore, in the first, second, and third embodiments, the ADB beam light distribution patterns LHP and RHP have an oval quarter shape. However, in the present invention, the shape of the ADB beam light distribution pattern is not particularly limited. For example, a triangle shape with a vertical cut-off line as one side, a half shape of an oval cut with a vertical cut-off line, or a three-quarter shape of an oval cut with a vertical cut-off line and a horizontal cut-off line It may be the shape.
　さらにまた、この実施形態１、２、３においては、第１ランプユニット２がスイブル装置９１により左右に回転するものである。ところが、この発明においては、第１ランプユニットと第２ランプユニットとがスイブル装置により同時に左右に回転するものであっても良い。 In the first, second, and third embodiments, the first lamp unit 2 is rotated left and right by the swivel device 91. However, in the present invention, the first lamp unit and the second lamp unit may be rotated right and left simultaneously by the swivel device.
　さらにまた、この実施形態１、２、３においては、第１ランプユニット２の光源として半導体型光源を使用するものである。ところが、この発明においては、第１ランプユニットの光源として、半導体型光源以外の光源、たとえば、ＨＩＤなどの放電光源、ハロゲン光源などのバルブ光源などを使用するものであっても良い。 Furthermore, in the first, second, and third embodiments, a semiconductor light source is used as the light source of the first lamp unit 2. However, in the present invention, as the light source of the first lamp unit, a light source other than the semiconductor light source, for example, a discharge light source such as HID, a bulb light source such as a halogen light source, or the like may be used.
　さらにまた、この実施形態１、２、３においては、対処車９として１台の対向車両について説明するものである。ところが、この発明においては、対象車９として、左側に曲がった曲路を走行する１台の先行車、あるいは、複数台の対向車や先行車などであっても良い。 Furthermore, in the first, second, and third embodiments, one oncoming vehicle will be described as the handling vehicle 9. However, in the present invention, the target vehicle 9 may be one preceding vehicle that runs on the left-turned road, or a plurality of oncoming vehicles or preceding vehicles.
　さらにまた、この実施形態１、２、３においては、第３ランプユニット４を回動機構６により回転させてＡＤＢビーム配光パターンＬＨＰ、ＲＨＰを回転変化させるものである。ところが、この発明においては、第３ランプユニットに遮光部材を回転可能に設けて、この遮光部材を回転させて、ＡＤＢビーム配光パターンを変化させるものであっても良い。 Furthermore, in the first, second, and third embodiments, the third lamp unit 4 is rotated by the rotation mechanism 6 to rotate and change the ADB beam light distribution patterns LHP and RHP. However, in the present invention, a light blocking member may be rotatably provided in the third lamp unit, and the light blocking member may be rotated to change the ADB beam light distribution pattern.
　１Ｌ　　左側の車両用前照灯装置
　１Ｒ　　右側の車両用前照灯装置
　２　　　第１ランプユニット
　３　　　第２ランプユニット
　４　　　第３ランプユニット
　５　　　ランプハウジング
　５０　　灯室
　５１　　第１取付部材
　５２　　第２取付部材
　５３、５４、５５　光軸調整装置
　６　　　回動機構
　６０　　ケーシング
　６１　　回転軸
　７　　　検出部
　８　　　制御部
　８０　　切替回路
　９　　　対象車
　Ｃ　　　車両
　ＨＬ－ＨＲ　スクリーンの左右の水平線
　ＨＰ　　ハイビーム配光パターン
　ＬＰ　　ロービーム配光パターン
　ＬＳＰ　左側のＡＤＢビーム配光パターン
　ＲＳＰ　右側のＡＤＢビーム配光パターン
　Ｖ－Ｖ　垂直軸
　ＶＵ－ＶＤ　スクリーンの上下の垂直線
  1L Left side vehicle headlamp device 1R Right side vehicle headlamp device 2 First lamp unit 3 Second lamp unit 4 Third lamp unit 5 Lamp housing 50 Lamp chamber 51 First mounting member 52 Second mounting member 53 , 54, 55 Optical axis adjusting device 6 Rotating mechanism 60 Casing 61 Rotating shaft 7 Detection unit 8 Control unit 80 Switching circuit 9 Target vehicle C Vehicle HL-HR Horizontal horizontal line of the screen HP High beam light distribution pattern LP Low beam light distribution pattern LSP ADB beam distribution pattern on the left side RSP ADB beam distribution pattern on the right side VV Vertical axis VU-VD Vertical lines on the top and bottom of the screen

Claims (3)

  1. 　ロービーム配光パターンを車両の前方に照射するロービームランプユニットと、
    　ハイビーム配光パターンを車両の前方に照射するハイビームランプユニットと、
    　ＡＤＢビーム配光パターンを車両の前方に照射するＡＤＢビームランプユニットと、
    　前方の対象車を検出して検出信号を出力する検出部と、
    　前記検出部からの前記検出信号に基づいて前記ロービームランプユニット、前記ハイビームランプユニット、前記ＡＤＢビームランプユニットに制御信号を出力する制御部と、
    　を備え、
    　前記制御部は、前記ロービームランプユニット、前記ハイビームランプユニット、前記ＡＤＢビームランプユニットのうち少なくともいずれか１のランプユニットの点消灯制御を、時間的変化を伴う調光制御で行う、
    　ことを特徴とする車両用前照灯装置。     A low beam lamp unit that irradiates the front of the vehicle with a low beam light distribution pattern; and
    A high beam lamp unit that irradiates the front of the vehicle with a high beam light distribution pattern;
    An ADB beam lamp unit that irradiates the front of the vehicle with an ADB beam light distribution pattern;
    A detection unit for detecting a target vehicle ahead and outputting a detection signal;
    A control unit that outputs a control signal to the low beam lamp unit, the high beam lamp unit, and the ADB beam lamp unit based on the detection signal from the detection unit;
    With
    The control unit performs lighting control of at least one of the low beam lamp unit, the high beam lamp unit, and the ADB beam lamp unit by dimming control with temporal change,
    A vehicle headlamp apparatus characterized by the above.
  2. 　前記ハイビームランプユニット、または、前記ＡＤＢビームランプユニット、あるいは、前記ハイビームランプユニットおよび前記ＡＤＢビームランプユニットの調光消灯時間は、前記ハイビームランプユニット、または、前記ＡＤＢビームランプユニット、あるいは、前記ハイビームランプユニットおよび前記ＡＤＢビームランプユニットの調光点灯時間よりも、短い、
    　ことを特徴とする請求項１に記載の車両用前照灯装置。     The dimming off time of the high beam lamp unit, the ADB beam lamp unit, or the high beam lamp unit and the ADB beam lamp unit is the high beam lamp unit, the ADB beam lamp unit, or the high beam lamp. Shorter than the dimming lighting time of the unit and the ADB beam lamp unit,
    The vehicle headlamp device according to claim 1.
  3. 　前記ハイビームランプユニットの調光消灯時間は、前記ＡＤＢビームランプユニットの調光点灯時間よりも、短い、
    　ことを特徴とする請求項１に記載の車両用前照灯装置。     The dimming turn-off time of the high beam lamp unit is shorter than the dimming turn-on time of the ADB beam lamp unit.
    The vehicle headlamp device according to claim 1.
PCT/JP2014/062483 2014-05-09 2014-05-09 Vehicular head lamp device WO2015170403A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2014/062483 WO2015170403A1 (en) 2014-05-09 2014-05-09 Vehicular head lamp device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2014/062483 WO2015170403A1 (en) 2014-05-09 2014-05-09 Vehicular head lamp device

Publications (1)

Publication Number Publication Date
WO2015170403A1 true WO2015170403A1 (en) 2015-11-12

Family

ID=54392271

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2014/062483 WO2015170403A1 (en) 2014-05-09 2014-05-09 Vehicular head lamp device

Country Status (1)

Country Link
WO (1) WO2015170403A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170036593A1 (en) * 2015-08-07 2017-02-09 Koito Manufacturing Co., Ltd. Vehicle lamp
CN108638956A (en) * 2018-05-14 2018-10-12 佛山市洁宇信息科技有限公司 A kind of lights of vehicle control system and control method
CN111660918A (en) * 2019-03-06 2020-09-15 斯坦雷电气株式会社 Control device and control method for vehicle headlamp, and vehicle headlamp system
DE102016108847B4 (en) * 2015-05-20 2021-07-01 Zkw Group Gmbh Lighting device for vehicle headlights
CN111660918B (en) * 2019-03-06 2024-06-07 斯坦雷电气株式会社 Control device and control method for vehicle headlamp and vehicle headlamp system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008037240A (en) * 2006-08-04 2008-02-21 Toyota Motor Corp Headlamp for vehicle
JP2009083835A (en) * 2007-09-14 2009-04-23 Koito Mfg Co Ltd Lamp for vehicle
JP2012151058A (en) * 2011-01-21 2012-08-09 Koito Mfg Co Ltd Shade driving unit
JP2012183875A (en) * 2011-03-04 2012-09-27 Koito Mfg Co Ltd Light distribution control device for vehicle headlamp
JP2013100115A (en) * 2013-03-07 2013-05-23 Koito Mfg Co Ltd Headlamp device for vehicle and control device for headlamp
JP2013224066A (en) * 2012-04-20 2013-10-31 Ichikoh Ind Ltd Light distribution control system of vehicle headlamp

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008037240A (en) * 2006-08-04 2008-02-21 Toyota Motor Corp Headlamp for vehicle
JP2009083835A (en) * 2007-09-14 2009-04-23 Koito Mfg Co Ltd Lamp for vehicle
JP2012151058A (en) * 2011-01-21 2012-08-09 Koito Mfg Co Ltd Shade driving unit
JP2012183875A (en) * 2011-03-04 2012-09-27 Koito Mfg Co Ltd Light distribution control device for vehicle headlamp
JP2013224066A (en) * 2012-04-20 2013-10-31 Ichikoh Ind Ltd Light distribution control system of vehicle headlamp
JP2013100115A (en) * 2013-03-07 2013-05-23 Koito Mfg Co Ltd Headlamp device for vehicle and control device for headlamp

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016108847B4 (en) * 2015-05-20 2021-07-01 Zkw Group Gmbh Lighting device for vehicle headlights
US20170036593A1 (en) * 2015-08-07 2017-02-09 Koito Manufacturing Co., Ltd. Vehicle lamp
US11046236B2 (en) * 2015-08-07 2021-06-29 Koito Manufacturing Co., Ltd. Vehicle lamp comprising a controller programmed to control a swivel actuator to swivel a spot beam
CN108638956A (en) * 2018-05-14 2018-10-12 佛山市洁宇信息科技有限公司 A kind of lights of vehicle control system and control method
CN111660918A (en) * 2019-03-06 2020-09-15 斯坦雷电气株式会社 Control device and control method for vehicle headlamp, and vehicle headlamp system
CN111660918B (en) * 2019-03-06 2024-06-07 斯坦雷电气株式会社 Control device and control method for vehicle headlamp and vehicle headlamp system

Similar Documents

Publication Publication Date Title
JP2014162244A (en) Head lamp device for vehicle
JP6051533B2 (en) Vehicle headlamp and vehicle headlamp device
JP6218499B2 (en) Lighting control device for vehicle headlamp, vehicle headlamp system
US8979334B2 (en) Automotive headlamp apparatus and light distribution control method
US8872425B2 (en) Light distribution control system for vehicle
JP5816031B2 (en) Vehicle headlamp device
JP5719620B2 (en) Light distribution control device for vehicle headlamp
JP5199798B2 (en) Vehicle headlamp device
JP2013161569A (en) Vehicle headlamp, and vehicle headlamp device
JP2007099222A (en) Vehicular lighting system
JP2011020559A (en) Vehicular headlamp apparatus
KR20160029701A (en) Vehicle lamp
JP5454526B2 (en) Vehicle light distribution control device and method
JP7155124B2 (en) Lighting units and vehicle headlights
JP2013161567A (en) Vehicle headlamp, and vehicle headlamp device
JP2012162105A (en) Vehicular headlight device
WO2015170403A1 (en) Vehicular head lamp device
JP2010018120A (en) Headlight system for bicycle
JP6142540B2 (en) Vehicle headlamp
JP6142541B2 (en) Vehicle headlamp
JP6459305B2 (en) Vehicle headlamp
JP6318593B2 (en) Vehicle headlamp
JP6314462B2 (en) Vehicle headlamp
JP2020083158A (en) Vehicle headlight device
JP4874573B2 (en) Method for controlling vehicle floodlight device and vehicle floodlight device having cornering illumination function

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14891447

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14891447

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: JP