JP2019081422A - Vehicular lamp device - Google Patents

Abstract

An object of the present invention is to match the lighting timing of a plurality of lamps and improve the appearance when the plurality of lamps blink even when LED light sources are used as lamps mounted on a vehicle. It is an object. A vehicular lamp device for indicating right and left turns of a vehicle, comprising a plurality of lamps that blink and emit light, a turn lever device that starts or ends the blinking of the plurality of lamps, and a plurality of lamps. a plurality of power supply units connected to each lamp for blinking each lamp; The power supply unit has a map storing the lighting pattern of each corresponding lamp, lights the corresponding lamp using the lighting pattern, and terminates the lighting according to the lighting pattern when a light-off signal is received from the ECU. Characterized by [Selection drawing] Fig. 5

Description

  The present invention relates to a lamp device for a vehicle, and more particularly to a lamp device for a vehicle for displaying the direction of the path of the vehicle toward the outside of the vehicle.

  A plurality of turn signal lamps are provided on the outside of the vehicle body (for example, in front of, side and back of the vehicle body) in order to notify the driver of another vehicle and pedestrians of right turn and left turn of the vehicle. Each turn signal lamp blinks in a predetermined cycle when it is turned on, but there is a possibility that the blink timings of the two do not match.

  The blink control device mounted on the vehicle described in Patent Document 1 includes a lamp control device for controlling blinks for each blinker lamp and a plurality of lamps in order to forcibly match the blink timings of a plurality of blinker lamps. A synchronization control device is provided to synchronize the operation of the control device. Specifically, in the blink control device, synchronization signals are transmitted from the synchronization control device to the plurality of lamp control devices, thereby matching the timing at which the plurality of winker lamps are lit. As a result, the blink timings of the winker lamps are matched with each other.

Unexamined-Japanese-Patent No. 11-115627 gazette

  However, in the blink control device of Patent Document 1, when the LED light source is adopted as the turn signal lamp, there is a problem that a shift occurs in the blink timing of the turn signal lamp. Specifically, since the LED light source is turned on when it is boosted to a predetermined target voltage defined by the number and type of lights, if the number of LED light sources and the equipment such as the lamp control device differ for each blinker lamp, the voltage is boosted. Because the time is different, the lighting timing is also different. In particular, since the number of LED light sources provided in front of the vehicle is larger than that of the other light sources, it takes time to boost up to the target voltage, and lighting tends to be delayed. As described above, when the lighting timing is different for each turn signal lamp, there is a problem that the blinking cycle is shifted and the appearance is bad.

  Therefore, even when the LED light source is used as a lamp mounted on a vehicle, the present invention improves the appearance when the plurality of lamps blink by matching the timing at which the plurality of lamps are lit. The purpose is.

  In order to solve the problems described above, a vehicle lamp device for displaying right turn and left turn of a vehicle, comprising: a plurality of lamps emitting light in a blinking manner; a direction indication switch for starting or ending the blinking of the plurality of lamps , A plurality of power supply units connected to each of the plurality of lamps, and a vehicle control unit that receives the start signal from the direction indication switch and transmits the lighting signal and the extinguishing signal to the power supply unit in a predetermined cycle The plurality of power supply units respectively include maps storing lighting patterns of the corresponding lamps, and turn on the corresponding lamps using the lighting patterns to receive the turn-off signal from the vehicle control unit. Then, it is characterized in that the lighting by the lighting pattern is ended.

  In the present invention configured as described above, the power supply unit lights up using the lighting pattern of the map when the lighting signal is received from the vehicle control unit, and turns off lighting according to the lighting pattern of the map when the lighting off signal is received. Therefore, the turn-off timings of a plurality of lamps can be matched. Therefore, the appearance when a plurality of lamps blink can be improved.

  In the present invention, preferably, the plurality of lamps start to emit light at different voltages. In the present invention configured as described above, even when the plurality of lamps start to emit light at different voltages, the turn-off timings of the plurality of lamps can be matched.

  In the present invention, preferably, the light sources of the plurality of lamps are LED light sources. In the present invention thus configured, even when the light sources of the plurality of lamps are LED light sources, the turn-off timings of the plurality of lamps can be matched.

  In the present invention, preferably, the plurality of power supply units control the start of lighting by the lighting pattern based on each delay time from when each power supply unit receives the lighting signal until each corresponding lamp is turned on. Do. In the present invention configured as described above, the lighting start timings of the plurality of lamps can be made to coincide with each other reliably.

  Further, in the present invention, preferably, the plurality of power supply units are configured to perform lighting according to the lighting pattern based on each standby time which is a difference between the maximum delay time among the delay times and the delay time in each power supply unit. Control the start. In the present invention configured as described above, the lighting timings of the plurality of lamps can be reliably matched.

  In the present invention, preferably, the vehicle control unit delays the timing of transmitting the light-off signal to the plurality of power supply units by the maximum standby time among the standby times. In the present invention configured as described above, lighting of each lamp according to the lighting pattern is terminated halfway because the lighting signal from the vehicle control unit is received from the vehicle control unit when or after lighting of each lamp according to the lighting pattern of the map is completed. I have not.

  According to the present invention, even when an LED light source is used as a lamp mounted on a vehicle, the timing at which a plurality of lamps are lit can be matched to improve the appearance when the plurality of lamps blink.

It is a block diagram showing a lamp device for vehicles by an embodiment of the present invention. FIG. 1 is a schematic circuit diagram showing a power supply unit including a booster circuit mounted on a vehicle lamp device according to an embodiment of the present invention. FIG. 5 is a schematic circuit diagram showing a power supply unit without a boost circuit according to an embodiment of the present invention. It is the schematic of the map with which each power supply part of the lamp apparatus for vehicles by embodiment of this invention is provided. It is a flowchart which shows operation | movement of the lamp device for vehicles by embodiment of this invention. It is a time chart which shows the blink operation of each lamp of the lamp device for vehicles by the embodiment of the present invention.

  Hereinafter, a lamp device for a vehicle according to an embodiment of the present invention will be described with reference to the attached drawings.

  First, the basic configuration of a lamp device for a vehicle according to an embodiment of the present invention will be described with reference to FIGS. 1 to 3. FIG. 1 is a block diagram showing a lamp device for a vehicle according to an embodiment of the present invention. FIG. 2 is a schematic circuit diagram showing a power supply unit including a booster circuit mounted on a vehicle lamp device according to an embodiment of the present invention, and FIG. 3 is a power supply not including a booster circuit according to an embodiment of the present invention It is a schematic circuit diagram showing a supply part.

  The vehicle is provided with lamps (indicator lamps) for giving a left turn and a right turn on the left and right sides of the vehicle body. The lamp informs the oncoming vehicle, the driver of parallel vehicles and following vehicles, pedestrians and the like by blinking that the vehicle turns left and right. For this reason, the lamps are provided at a plurality of locations in front, side and rear of the vehicle body so that they can be checked from all directions around the vehicle.

  As shown in FIG. 1, the lamp includes a plurality of lamps of a front lamp 10, a side lamp 11, a rear lamp 12 and an in-car lamp 13. The front lamp 10 is provided in front of the vehicle body, the side lamp 11 is provided in the side or side mirror of the vehicle body, the rear lamp 12 is provided in the rear of the vehicle body, and the vehicle lamp 13 is provided in an instrument panel in the vehicle.

  Each of the lamps 10 to 13 uses the same kind of LED light source (light emitting diode) of different number of lights. The number of lights of the front lamp 10, the side lamp 11, the rear lamp 12, and the in-car lamp 13 is 10, 1, 5, 1 (lights). In the front lamp 10 and the rear lamp 12, these LED light sources are connected in series.

  The LED light source emits light at a predetermined light amount when a voltage equal to or higher than a target voltage (forward voltage of about 3.3 V per lamp) is applied, but does not emit light at a voltage lower than the target voltage. The target voltages of the front lamp 10, the side lamp 11, the rear lamp 12 and the in-vehicle lamp 13 are determined by the number and type of LED light sources, and in this embodiment, about 33, about 3.3, about 16.5, about 3 .3 (V). That is, in order to light the LED light sources of the lamps 10 to 13, it is necessary to boost the voltage to each target voltage. Since the time taken for boosting up to each target voltage is different in each of the lamps 10 to 13, the time until each lamp is actually lighted is different even when a lighting command is received. The time required for this boosting is the delay time Δt. In addition, the kind and the number of lights of the LED light source of this invention are not limited to what was mentioned above, It can change suitably.

  Inside the vehicle, a turn lever device 3 (a direction indication switch) for turning on or off each of the lamps 10 to 13 is provided. The turn lever device 3 includes a turn lever (not shown) provided in the vicinity of the steering wheel in the front of the vehicle, and a detection unit (not shown) for detecting the operation of the turn lever by the driver. The turn lever device 3 transmits to the ECU 5 via the receiver 4 a signal indicating the start or end of the blinking of each of the lamps 10 to 13 in accordance with the driver's operation. The turn lever device 3 blinks the lamps 10 to 13 provided on the left side of the vehicle body when the driver operates the turn lever in the left direction. Further, when the driver operates the turn lever in the right turn direction, the turn lever device 3 blinks the lamps 10 to 13 provided on the right side of the vehicle body. The direction indication switch is not limited to the turn type switch as in this embodiment, and a push button type switch may be used.

  A power supply unit (ESU; Electronic Supply Unit) includes a front power supply unit 15 connected to the front lamp 10, a side power supply unit 16 connected to the side lamp 11, and a rear power supply unit 17 connected to the rear lamp 12; An in-vehicle power supply unit 18 connected to the in-vehicle lamp 13 is provided.

  Each of the power supply units 15 to 18 functions as a unit that applies a predetermined application voltage (≧ target voltage) to each lamp so that each lamp 10 to 13 lights up at a predetermined timing and a predetermined light amount. Each of the power supply units 15 to 18 includes maps that store lighting patterns related to lighting rates from lighting to lighting of the lamps 10 to 13. Each power supply part 15-18 will supply electric power to each lamp 10-13 based on the lighting pattern of each map, and will be lighted, if a lighting signal is received from ECU5. Each power supply part 15-18 will stop supply of the electric power to each lamp 10-13, and will make it light-out, if the light-out signal is received from ECU5. Further, each power supply unit 15 to 18 adjusts the light amount of the LED light source by performing PWM control on the voltage applied to each lamp.

  Moreover, each power supply part 15-18 functions also as a unit which monitors the lighting condition which the LED light source of each lamp | ramps 10-13 is lighting. Specifically, while detecting the time (delay time) from the reception of the lighting signal from the ECU 5 to the time when the LED light sources of the lamps 10 to 13 actually start lighting, the delay time is sent to the ECU 5 at each detection. Send.

  The front power supply unit 15 and the rear power supply unit 17 will be described with reference to FIG. The front power supply unit 15 and the rear power supply unit 17 use the DC-DC converter 20 for boosting the voltage input from the voltage input terminal 22, and apply predetermined voltages by turning on / off. The microcomputer 26 (μC) is connected to the switching element 24 for supplying the lamps, the DC-DC converter 20 and the switching element 24 to light each lamp. Further, the front lamp 10 and the rear lamp 12 have a series circuit in which a plurality of LED light sources are connected in series. In this series circuit, one end is connected to the switching element 24 and the other end is connected to the ground 28 so that a forward voltage is applied to the LED light source.

  The DC-DC converter 20 is connected to a battery power supply (not shown), and the battery voltage (about 12 V) input from the voltage input terminal 22 is commanded by the microcomputer 26 to be the target voltage of each lamp 10-13. The front lamp 10 functions as a booster circuit for boosting to about 33 V and the rear lamp 12 to about 16.5 V or more.

  The switching element 24 is connected to each of the lamps 10 and 12 so as to energize the LED light source when it is on, and cuts off the energization to the LED light source when it is off. In addition, the switching element 24 repeatedly turns on and off by PWM control in the energization period according to a command from the microcomputer 26 to control the light amount of the LED light source. That is, in the PWM control, the duty ratio is changed by extending or shortening the ON time width to adjust the substantial supplied power.

  The microcomputer 26 includes a map, and controls the DC-DC converter 20 and the switching element 24 based on the lighting pattern of the map. Specifically, when the microcomputer 26 receives the lighting signal from the ECU 5, the DC-DC converter 20 boosts the battery voltage to a predetermined applied voltage (≧ target voltage). Further, the microcomputer 26 controls the switching element 24 based on the map to light the LED light source in a predetermined lighting pattern.

  Further, the microcomputer 26 measures the current flowing through the lamps 10 and 12 by means of a current detection element (not shown). At the timing when the voltage boosted by the DC-DC converter 20 reaches the target voltage (forward voltage about 3.3 V × number of lamps), current starts to flow in the lamps 10 and 12 (ie, starts to light up). Therefore, the microcomputer 26 can detect the time when the current starts to flow through the lamps 10, 12 as the lighting start time of the LED light source. That is, the delay time is from the time of reception of the lighting signal to the time of lighting start. Then, the microcomputer 26 operates the LED light source in the lighting pattern based on the map with the lighting start time as the starting point. Therefore, when the lighting start time is delayed by the delay time, the lighting pattern is also delayed by the delay time and ends.

  The side power supply unit 16 and the in-vehicle power supply unit 18 will be described with reference to FIG. The side power supply unit 16 and the in-vehicle power supply unit 18 are the same as the front power supply unit 15 and the rear power supply unit 17 described above, except that the DC-DC converter is not provided. When the microcomputer 26 receives the lighting signal from the ECU 5, the microcomputer 26 applies a battery voltage (about 12 V) to the side lamp 11 or the in-vehicle lamp 13 without boosting. Further, the microcomputer 26 controls the switching element 24 based on the map to light the LED light source in a predetermined lighting pattern. In the side lamp 11 or the in-vehicle lamp 13, a limiting resistor (not shown) is provided in the circuit so that an excessive current does not flow.

  The ECU 5 (Electronic Control Unit, vehicle control unit) includes an input interface circuit for inputting a signal from each device, an output interface circuit for outputting a request signal to each device, and a CPU for processing the input signal. , A memory, and a program (not shown) for operating these. The ECU 5 is communicably connected to the turn lever device 3 and the power supply units 15 to 18. When receiving a start signal of flickering from the turn lever device 3, the ECU 5 performs a series of on / off pulse signals of a predetermined cycle stored in advance. Transmit to the power supply units 15-18. When the ECU 5 receives the end signal of the blinking from the turn lever device 3, the ECU 5 ends the transmission of a series of on / off pulse signals.

  Further, when the ECU 5 receives the measured data of the delay time of the lamps 10 to 13 from the power supply units 15 to 18, the ECU 5 corrects a series of on / off pulse signals of a predetermined cycle. Although the pulse width (time length) of the lighting signal is the same length as the time length of the lighting pattern of the map, the ECU 5 performs correction to delay the pulse width of the lighting signal by a predetermined time.

  FIG. 4 is a schematic view of a map provided in each power supply unit of the vehicle lamp device according to the embodiment of the present invention. Describe the details of the map.

  As shown in FIG. 4, the map is a lighting pattern having the steps of (a) lighting start, (b) lighting continuation, and (c) extinguishing. The ratio of the amount of light currently emitted is stored beforehand. Each of the power supply units 15 to 18 includes maps corresponding to the lamps 10 to 13 and controls lighting states of the lamps 10 to 13 using the maps. The lighting rate waveform of each map, which is the lighting pattern, is the same waveform among the maps, and the time length of the lighting pattern of each map is also set to the same length.

  In the map, in the lighting start stage (a), the power supply unit is controlled so as to quickly rise from 0% to 100% of the lighting rate of the lamp. In FIG. 4, the lighting rate has a slight inclination with respect to the vertical axis due to a physical factor of the device or the like, but rises substantially perpendicularly. At this stage, the microcomputer 26 of the power supply unit turns on the switching element 24 to start applying a predetermined application voltage to the LED light source.

  In the lighting continuation stage (b), the power supply unit is controlled so that the lighting rate of the lamp is constant at 100%. At this stage, the microcomputer 26 of the power supply unit continuously turns on the switching element 24 to keep applying the predetermined application voltage to the LED light source.

  In the extinguishing step (c), the power supply unit is controlled to gradually decrease the lighting rate of the lamp from 100% to 0%. At this stage, the microcomputer 26 of the power supply unit shortens the on-time width (duty ratio) of the switching element 24 by PWM control to gradually reduce the power supplied to the LED light source. After the turn-off step (c), the microcomputer 26 keeps the switching element 24 off.

  The operation of the vehicle lamp device according to the embodiment of the present invention will be described with reference to FIG. FIG. 5 is a flow chart showing the operation of the vehicle lamp device according to the embodiment of the present invention. In FIG. 5, S indicates each step.

  As shown in FIG. 5, when the driver operates the turn lever and the detection unit of the turn lever device 3 detects that it is on, the ECU 5 receives a start signal of blinking of the lamps 10 to 13 from the detection unit (S1 ;) While the detection unit is detecting OFF, the ECU 5 continues to receive the end signal of the blinking of the lamps 10 to 13 (S1; No).

  In S2, when the ECU 5 receives the blink start signal, the ECU 5 transmits the first lighting signal (first lighting signal) in the series of lighting on / off pulse signals to the respective power supply units 15 to 18. Specifically, the ECU 5 simultaneously sends a signal instructing lighting and extinguishing of each of the lamps 10 to 13 to the respective power supply units 15 to 18 at predetermined time intervals until the detection unit of the turn lever device 3 detects that it is off. Keep sending. In the present embodiment, the lighting signal of the ECU 5 is the on period or rising edge of the pulse signal. However, not limited to this, the lighting signal may be a single signal (for example, a short pulse signal).

  In step S3, each power supply unit 15 to 18 receives a first lighting signal from the ECU 5, applies a predetermined applied voltage to each of the lamps 10 to 13 after each delay time Δt1 to Δt4 required for boosting. start. That is, each of the power supply parts 15 to 18 controls the switching element 24 based on each map to start supplying power to the LED light sources of the respective lamps 10 to 13.

  When the front power supply unit 15 receives the lighting signal, the DC-DC converter 20 instructs the battery voltage (about 12 V) to be a predetermined applied voltage (about 12 V) by the DC-DC converter 20 according to a command from the microcomputer 26.昇 about 33 V) to start boosting. After the delay time Δt 1 has passed, the front power supply unit 15 applies a predetermined application voltage to the front lamp 10.

  When the rear power supply unit 17 receives the lighting signal, the DC-DC converter 20 instructs the battery voltage (about 12 V) to have a predetermined applied voltage (≧ 12 Start boosting to about 16.5V). After the delay time Δt 3 has elapsed, the rear power supply unit 17 applies a predetermined application voltage to the rear lamp 12.

  When the side power supply unit 16 and the in-vehicle power supply unit 18 receive the lighting signal, the switching element 24 is turned on by a command from the microcomputer 26 without delay time (Δt2, Δt4 = 0), and the side lamp 11 is turned on. And start applying a predetermined applied voltage to the in-vehicle lamp 13. The current supplied to the side lamp 11 or the in-vehicle lamp 13 is limited by a limiting resistor (not shown) so that an excessive current is not supplied.

  In S4, each lamp 10 to 13 starts lighting by the lighting pattern of each map after each delay time Δt1 to Δt4 has elapsed. The front lamp 10 starts to light up after the delay time Δt1. The rear lamp 12 starts lighting after the delay time Δt3. The side lamp 11 and the in-vehicle lamp 13 start lighting without delay time (Δt2, Δt4 = 0). Since each power supply unit 15 to 18 controls the switching element 24 based on each map starting from each lighting start time point, each lamp 10 to 13 excludes each delay time Δt1 to Δt4. , It lights up as the same waveform of the lighting rate memorized by each map.

  In S5, the power supply parts 15 to 18 detect delay times Δt1 to Δt4 from the reception of the lighting signal of the ECU 5 until the LED light sources of the lamps 10 to 13 actually start lighting. Each of the power supply units 15 to 18 transmits measured data of each delay time to the ECU 5 when each delay time Δt1 to Δt4 is detected.

  In S6, when the measured data of each delay time Δt1 to Δt4 is received, the ECU 5 determines the maximum value Δtmax among the delay times Δt1 to Δt4. For example, since the delay time Δt1 of the front lamp 10 is boosted to a high applied voltage by the front power supply unit 15, the delay time Δt1 becomes the maximum value (= about 30 msec). On the other hand, since the power supply parts 16 and 18 do not step up the delay times Δt2 and Δt4 of the side lamp 11 and the in-vehicle lamp 13, the delay times Δt2 and Δt4 become the minimum value (= 0 msec).

  Then, the ECU 5 subtracts the delay times Δt1 to Δt4 from the maximum value Δtmax of the delay times to calculate the standby time for matching the lighting start time of each of the lamps 10 to 13 ((ΔT1 to ΔT4) = Δtmax − (Δt1 to Δt4); ΔT1, ΔT2, ΔT3 and ΔT4: front lamp, side lamp, rear lamp, in-vehicle lamp standby time; Δt1, Δt2, Δt3, Δt4: front lamp, side lamp, rear lamp, in-vehicle lamp delay time Δtmax: maximum value of each delay time).

  In S7, the ECU 5 transmits the first turn-off signal (first turn-off signal) in the series of turn-on / off pulse signals to the respective power supply units 15-18. In the present embodiment, the turn-off signal is the off period or falling edge of the series of pulse signals. However, the present invention is not limited to this, and the on / off signal may be a single signal (for example, a short pulse signal).

  In S8, each power supply part 15-18 will complete lighting of each lamp 10-13 by each map, if the 1st light extinction signal is received from ECU5. That is, even if each lamp 10-13 is in the lighting operation by the lighting pattern of the map, lighting of all the lamps 10-13 is ended by the first light-off signal from the ECU 5. Thereby, the light extinction timing of each lamp 10-13 can be made to correspond.

  In S9, the ECU 5 performs the next lighting signal (second lighting signal) in a series of lighting / lighting out cycle pulses and the data of each standby time ΔT1 to ΔT4 of each lamp 10 to 13 calculated in S6 to each power supply unit Send to 15-18.

  In S10, when each power supply unit 15 to 18 receives the second lighting signal from the ECU 5, the predetermined applied voltage is applied to each lamp 10 to 13 after each standby time ΔT1 to ΔT4 of each lamp 10 to 13 has elapsed. Start to apply to

  Specifically, when the front power supply unit 15 receives the second lighting signal, there is no waiting time (.DELTA.T1 = 0), and after the delay time .DELTA.t1 has elapsed, the front lamp 10 starts to be boosted to a predetermined applied voltage. Start applying a predetermined applied voltage. When receiving the second lighting signal, the rear power supply unit 17 starts applying a predetermined application voltage to the rear lamp 12 after the standby time (ΔT3 = Δt1−Δt3) and the delay time Δt3. The side power supply unit 16 and the in-vehicle power supply unit 18 apply a predetermined voltage to the side lamp 11 and the in-vehicle lamp 13 after the standby time (.DELTA.T2, .DELTA.T4 = .DELTA.t1) elapses after the second lighting signal is received. Start applying a voltage. Thereby, the lighting start timing of each lamp 10-13 can be made to correspond.

  In S11, the ECU 5 corrects a series of on / off pulse signals of a predetermined cycle stored in advance. Specifically, in the pulse signal, the ECU 5 delays the transmission timing of the next light-off signal (second light-off signal) by the maximum value ΔTmax (ΔT2, ΔT4 = Δt1) of each standby time (pulse width of lighting signal Correction of the time length) is extended by the maximum value ΔTmax of the waiting time).

  Next, the ECU 5 transmits a second light-off signal to each of the power supply units 15 to 18 after the maximum value ΔTmax of the standby time has elapsed based on the corrected pulse signal. Each of the power supply units 15 to 18 receives the second light-off signal when lighting according to the lighting pattern of each map is finished. Thereby, lighting of each lamp 10-13 by the lighting pattern of each map is not complete | finished on the way. Thereafter, the ECU 5 continues to transmit the corrected pulse signal to each of the power supply units 15 to 18.

  In S12, when the driver operates the turn lever and the detection unit of the turn lever device 3 detects OFF (S23; Yes), the ECU 5 outputs an end signal for turning off each of the lamps 10 to 13 from the detection unit. Receive and forcibly turn off each lamp 10-13. Steps S9 to S11 are repeated until the detection unit detects OFF (S23; No). This is the end of the operation flow of the vehicle lamp device.

  Next, with reference to FIG. 6, the operation of the lamp device for a vehicle according to the present embodiment of the present invention will be described. FIG. 6 is a time chart showing the blinking operation of each lamp of the vehicle lamp device.

  When the driver operates the turn lever at t1, the turn lever device 3 transmits a blink start signal to the ECU 5. When the ECU 5 receives the blink start signal, the ECU 5 transmits the blink / extinguished pulse signal stored in advance to the respective power supply units 15 to 18. Since the side power supply unit 16 and the in-vehicle power supply unit 18 do not perform boosting, the side lamp 11 and the in-vehicle lamp 13 start to light at substantially the same timing as the reception of the first lighting signal (t1). On the other hand, since the front power supply unit 15 and the rear power supply unit 17 take time to boost, the front lamp 10 and the rear lamp 12 are lighted at a timing delayed by the delay times Δt1 and Δt3 from the reception of the first lighting signal. Start (t2, t3).

  At t4, the ECU 5 transmits a first light-off signal to each of the power supply units 15-18. Each of the power supply units 15 to 18 turns off the switching element 24 (non-conduction) when the light-off signal is received, and turns off the lamps 10 to 13 simultaneously. The side power supply unit 16 and the in-vehicle power supply unit 18 receive the first light-off signal when lighting according to the lighting pattern of the map is finished. The front power supply unit 15 and the rear power supply unit 17 receive the first light-off signal during the lighting operation according to the lighting pattern of the map, and end the lighting according to the lighting pattern of the freon lamp 10 and the rear lamp 12. Thereby, the light extinction timing of each lamp 10-13 can be made to correspond.

  At t5, the ECU 5 transmits data of the second lighting signal and the standby time to each of the power supply units 15 to 18. The front lamp 10 lights up with a delay time Δt1 after receiving the lighting signal of the ECU 5 (t6). The rear lamp 12 lights up delayed by the standby time ΔT3 and the delay time Δt3 after receiving the lighting signal of the ECU 5 (t6). The side lamp 11 and the in-vehicle lamp 13 light up with a delay of ΔT2 and ΔT4 after receiving the lighting signal of the ECU 5 (t6). Thereby, each of the lamps 10 to 13 starts to be lighted simultaneously at t6.

  At t7, the ECU 5 transmits the second turn-off signal with a delay by the maximum value ΔTmax (ΔT2, ΔT4 = Δt1) of the delay time. Each of the power supply units 15 to 18 receives the light-off signal when the lighting of each of the lamps 10 to 13 according to the lighting pattern of the map is finished. Thereby, lighting of each lamp 10-13 by the lighting pattern of a map is not complete | finished on the way. In the present embodiment, the ECU 5 transmits the second light-off signal at the time when the lighting according to the lighting pattern of the map is finished, but the present invention is not limited to this. It may be any time later.

  When the driver turns off the turn lever at t8, the turn lever device 3 transmits a blinking end signal to the ECU 5. When the ECU 5 receives the end signal of the blinking, the ECU 5 transmits an extinguishing signal to each of the power supply units 15 to 18 to end the blinking of each of the lamps 10 to 13.

Next, the (action) effect of the present embodiment will be described.
In the control apparatus 1 of the lamp for vehicles of this embodiment, each power supply part 15-18 is provided with the map which memorize | stored the lighting pattern of each corresponding lamp 10-13. The respective power supply units 15 to 18 turn on the corresponding lamps 10 to 13 using the lighting patterns of the respective maps, and when the turn-off signal is received from the ECU 5, the respective lamps 10 to 13 are lit according to the lighting patterns of the respective maps. End.

  In the present embodiment, each of the power supply units 15 to 18 lights up using the lighting pattern of the map when the lighting signal is received from the ECU 5, and turns off the lighting according to the lighting pattern of each map when the lighting off signal is received. Because of this, the turn-off timings of the lamps 10 to 13 can be matched. Therefore, the appearance when the lamps 10 to 13 blink can be improved.

  Further, in the present embodiment, each of the lamps 10 to 13 starts to emit light at different voltages. The light sources of the lamps 10 to 13 are LED light sources. Each of the lamps 10 to 13 provided with the LED light source emits light instantaneously by application of a voltage, as compared with a bulb lamp (a lamp which emits light when a predetermined amount of light is emitted from the energized filament). For this reason, when the time to boost up to the predetermined applied voltage of each of the lamps 10 to 13 is different, a shift in the timing of lighting tends to occur. In the embodiment configured as described above, the lighting timings of the lamps 10 to 13 can be matched even when using the lamps 10 to 13 emitting light at different voltages.

  In the present embodiment, each power supply unit 15 to 18 lights up each map based on each delay time Δt 1 to Δt 4 from the reception of the lighting signal from the ECU 5 to the actual lighting of each lamp 10 to 13. Control the start of lighting by the pattern. Specifically, the power supply units 15 to 18 detect the delay times Δt1 to Δt4 and adjust the side lamp 11, the rear lamp 12 and the in-vehicle lamp 13 to match the lighting timing of the front lamp 10 with the longest delay time. Is controlled to delay the lighting timing of the signal by the difference between the delay times. In the embodiment configured as described above, the lighting timings of the lamps 10 to 13 can be reliably made to coincide with each other.

  In the present embodiment, each of the power supply units 15 to 18 is the maximum delay time Δtmax of the delay times Δt1 to Δt4 and the delay time Δt1 of each of the power supply units 15 to 18. The start of lighting according to the lighting pattern is controlled based on each standby time ΔT1 to ΔT4 which is a difference between and ΔT4. Specifically, each of the power supply units 15 to 18 controls the lighting timing of each of the lamps 10 to 13 to be delayed by each waiting time ΔT1 to ΔT4. In the embodiment configured as described above, the lighting timings of the lamps 10 to 13 can be reliably made to coincide with each other.

  In the present embodiment, the ECU 5 supplies the turn-off signal to each of the power supply units 15 to 18 with respect to a series of turn-on / off pulse signals stored in advance as the maximum value ΔTmax of each standby time ΔT1 to ΔT4. Only delay. In the embodiment configured as described above, since the turn-off signal can be received from the ECU 5 when or after the lighting of each of the lamps 10 to 13 according to the lighting pattern of the map is completed, each lamp according to the lighting pattern of the map Lighting of 10 to 13 does not end halfway.

  Without being limited to the above-described embodiment of the present invention, various changes and modifications are possible within the scope of the technical idea described in the claims.

1 Vehicle lamp device 3 Turn lever device (Direction switch)
5 ECU (vehicle control unit)
DESCRIPTION OF SYMBOLS 10 front lamp 11 side lamp 12 rear lamp 13 in-vehicle lamp 15 front power supply unit 16 side power supply unit 17 rear power supply unit 18 in-vehicle power supply unit ΔT standby time Δt delay time

Claims (6)

A lamp device for a vehicle for displaying a right turn and a left turn of a vehicle, wherein
With multiple lamps that flash to light,
A directional indicator switch to start or stop the flashing of the plurality of lamps;
A plurality of power supply units connected to each of the plurality of lamps and causing each lamp to blink;
A vehicle control unit that receives a start signal from the direction indication switch and transmits a lighting signal and a turning-off signal to the power supply unit at a predetermined cycle;
The plurality of power supply units respectively include maps storing the lighting patterns of the corresponding lamps, and turn on the corresponding lamps using the lighting patterns and receive the lighting signal from the vehicle control unit. The lamp unit for vehicles which finishes lighting by a pattern.   The vehicle lamp device according to claim 1, wherein the plurality of lamps start to emit light at different voltages.   The vehicle lamp device according to claim 2, wherein the light sources of the plurality of lamps are LED light sources.   The plurality of power supply units control start of lighting according to the lighting pattern based on each delay time from when each power supply unit receives the lighting signal to when the corresponding lamp lights up. The vehicle lamp device according to 3.   The plurality of power supply units control start of lighting according to the lighting pattern based on each standby time which is a difference between the maximum delay time among the delay times and the delay time in each power supply unit. The vehicle lamp device according to 4.   The vehicle lamp device according to claim 5, wherein the vehicle control unit delays the timing of transmitting the light-off signal to the plurality of power supply units by the maximum standby time among the standby times.

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