JP7263419B2 - Vehicle lights and vehicles - Google Patents

Description

The present invention relates to a vehicle lamp and a vehicle.

2. Description of the Related Art Conventionally, in vehicle lamps, there is a device provided with a configuration for detecting disconnection when a light source (light emitting diode) is disconnected (for example, Patent Document 1).

JP-A-2004-122913

In the case of applying the configuration of Patent Document 1, since the disconnection detection function is provided for each of the light source units, the circuit scale becomes large.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a vehicle lamp and a vehicle capable of suppressing the circuit scale of a configuration for detecting disconnection of a light source of the vehicle lamp.

A vehicle lamp and a vehicle according to the present invention employ the following configurations.
(1): A vehicle lighting device according to an aspect of the present invention is a vehicle lighting device in which light sources are arranged, has a first light source, and performs disconnection control to bring the inside of the vehicle lighting device into a disconnection state. A first standard light source unit having a control unit, and a second standard light source unit connected to the first standard light source unit and having a second light source, wherein when the second light source is disconnected, the disconnection control unit The first light source and the second light source are put in a pseudo disconnection state, the plurality of second standard light source units are provided, and an abnormality of the second light source is detected in each of the second standard light source units, The vehicular lighting device further comprises an abnormality detection section that changes an output to the disconnection control section when any one of the two light sources has an abnormality.

(2): A vehicle lighting device according to an aspect of the present invention is a vehicle lighting device in which light sources are arranged, has a first light source, and performs disconnection control to bring the inside of the vehicle lighting device into a disconnection state. A first standard light source unit having a control unit, and a second standard light source unit connected to the first standard light source unit and having a second light source, wherein when the second light source is disconnected, the disconnection control unit The first light source and the second light source are put in a pseudo disconnection state, and the relay that drives each of the first light source and the second light source supplies power to the first light source at a predetermined cycle, and the The vehicle lamp has a delay section for delaying the timing at which the second standard light source section blinks the second light source with respect to the timing at which the first light source blinks.

(3): In the aspect of (1) above, the abnormality detection unit detects the current consumption of each of the second light sources , and the current consumption of at least one of the second light sources satisfies a predetermined condition. If the conditions are not met, it is determined that a disconnection has occurred in the second light source, and the output to the disconnection control unit is changed.

(4): In the aspect of (3) above, the abnormality detection unit converts the consumption current of each of the second light sources into a voltage, integrates the voltage to obtain an integrated voltage, and the integrated voltage is If the voltage is lower than a preset reference voltage, it is determined that a disconnection has occurred in the second light source.

(5): The above modes (1) to (4) further include winker relays for driving each of the first light source and the second light source.

(6): In any one of the aspects (1) to (5) above, the winker relay supplies power to the first light source at a predetermined cycle, and each of the second standard light source units It has a delay unit that delays the timing of blinking the first light source by a different time, and each of the delay units sequentially blinks each of the second light sources in the order of arrangement in chronological order.

(7): In the above aspect (6), when the first light source is disconnected, each of the second standard light source units blinks all of the second light sources at the same timing.

(8): In the aspect of (7) above, it is determined whether the frequency of the pulse for blinking the light source supplied from the winker relay is a first frequency or a second frequency higher than the first frequency; a delay control unit that performs control such that the delay unit does not delay in the case of two frequencies, and the blinker relay changes the frequency of the pulse from the first frequency to the Convert to a second frequency.

(9): In the aspect of (8) above, the delay control unit converts the frequency of the pulse into a frequency voltage that is a voltage, and converts the frequency voltage into a preset threshold voltage corresponding to the second frequency. A determination is made as to whether or not the frequency of the pulse exceeds the second frequency.

(10): In the aspect (8) or (9) above, the output from the first standard light source unit, the second standard light source unit, and the abnormality detection unit that detects an abnormality in the second light source changes. a front vehicle lighting device and a rear vehicle lighting device each having a disconnection control unit for setting the first light source and the second light source to a disconnection state and the delay control unit; When the first light source of one of the lighting device and the rear vehicle lighting device is disconnected, the delay control section of the other causes the delay section of the second standard light source section of the other to cause the blinking of each of the delay sections. Without delay, the second frequency causes each of the first and second light sources at the other to flash simultaneously.

(11): The vehicle lamp according to any one of the above aspects (1) to (10) is a vehicle turn signal.

(12): A vehicle according to an aspect of the present invention is a vehicle having the vehicle lamp according to any one of aspects (1) to (11).

(13): In the aspect of (12) above, the vehicle is a saddle-type vehicle.

(14): In the aspect of (12) above, the vehicle is a motorcycle.

According to the aspects (1) to (14) above, it is possible to suppress the circuit scale of the configuration for detecting disconnection of the light source of the vehicle lamp.

1 shows a top view of an exemplary motorcycle equipped with a vehicle lamp according to an embodiment of the present invention, viewed from above; FIG. 2 is a block diagram showing an example of the configuration of the vehicle lamp of FIG. 1 according to one embodiment of the present invention; FIG. FIG. 10 is a diagram illustrating an operation example when an LED of the light source circuit 211 of the first standard light source section 21 in the rear left blinker section 12L is broken. It is a figure explaining the operation example when LED of the light source circuit 222 of the 2nd standard light source part 22_2 in the front left blinker part 11L is disconnected.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following, a configuration in which a vehicle lamp according to an embodiment of the present invention is mounted on a straddle-type vehicle such as a motorcycle will be described.
FIG. 1 shows a top view of a motorcycle as an example provided with a vehicle lamp according to one embodiment of the present invention.
In the motorcycle 300, the vehicle lamp 10 includes a front left winker portion 11L and a rear left winker portion 12L, a front right winker portion 11R and a rear right winker portion 12R, an indicator left display portion 13L provided in the indicator 13, An indicator light display portion 13R and a winker relay 14 are provided.

The front left vehicle lighting device 11L is provided at a predetermined position on the left front portion of the vehicle body of the motorcycle 300 . Here, the front left vehicle lamp 11L has light sources 11L_1, 11L_2, 11L_3 and 11L_4. Each of the light sources 11L_1, 11L_2, 11L_3, and 11L_4 serves as the light source of the first standard light source section 21, the light source circuit 211, and the light source circuit 222 of the second standard light source sections 22_1, 22_2, and 22_3 in the front left vehicle lamp 11L, which will be described later. They correspond to each other.

Further, the rear left vehicle lighting device 12L is provided at a predetermined position on the left side of the rear portion of the vehicle body of the motorcycle 300 . Here, the rear left vehicle lamp 12L has light sources 12L_1, 12L_2, 12L_3 and 12L_4. Each of the light sources 12L_1, 12L_2, 12L_3, and 12L_4 serves as the light source of the first standard light source section 21, the light source circuit 211, and the light source circuit 222 of the second standard light source sections 22_1, 22_2, and 22_3 in the rear left vehicle lamp 12L, which will be described later. Yes.

The front light vehicle lamp 11R is provided at a predetermined position on the right side of the front portion of the vehicle body of the motorcycle 300 . Here, the front light vehicle lamp 11R has light sources 11R_1, 11R_2, 11R_3 and 11R_4. Each of the light sources 11R_1, 11R_2, 11R_3, and 11R_4 serves as a light source for the light source circuit 222 of the first standard light source section 21, the light source circuit 211, and the second standard light source sections 22_1, 22_2, and 22_3 in the front light vehicle lamp 11R, which will be described later. They correspond to each other.

Further, the rear light vehicle lamp 12R is provided at a predetermined position on the right side of the rear part of the vehicle body of the motorcycle 300. As shown in FIG. Here, the rear light vehicle lamp 12R has light sources 12R_1, 12R_2, 12R_3 and 12R_4. Each of the light sources 12R_1, 12R_2, 12R_3, and 12R_4 serves as a light source for the light source circuit 222 of the first standard light source section 21, the light source circuit 211, and the second standard light source sections 22_1, 22_2, and 22_3 in the rear light vehicle lamp 12R, which will be described later. They correspond to each other.

For example, when the driver turns left, the front left vehicle lamp 11L and the rear left vehicle lamp 12L are sequentially turned on by turning on a turn signal switch (not shown) to the left turn side. In the sequential lighting, the light sources 11L_1 to 11L_4 in the front left vehicle lighting device 11L sequentially repeat blinking in the order in which they are arranged (from the center side of the vehicle body toward the left outer side of the vehicle body). Similarly, in sequential lighting, the light sources 12L_1 to 12L_4 in the rear left vehicle lighting device 12L sequentially repeat flickering in the order in which they are arranged (from the center side of the vehicle body toward the left outer side of the vehicle body). At this time, the indicator left display portion 13L also flashes in conjunction with the front left vehicle lamp 11L and the rear left vehicle lamp 12L.

When the driver turns right, the front light vehicle lamp 11R and the rear light vehicle lamp 12R are sequentially turned on by turning on a turn signal switch (not shown) to the right turn side. In the sequential lighting, the light sources 11R_1 to 11R_4 in the front light vehicle lamp 11R sequentially blink in the order in which they are arranged (from the center side of the vehicle body toward the right outer side of the vehicle body). Similarly, in the sequential lighting, the light sources 12R_1 to 12R_4 in the rear light vehicle lighting device 12R sequentially repeat blinking in the order in which they are arranged (from the center of the vehicle body toward the outer right side of the vehicle body). At this time, the indicator light display portion 13R also blinks in conjunction with the front light vehicle lamp 11R and the rear light vehicle lamp 12R.

FIG. 2 is a block diagram showing an example of the configuration of the vehicle lamp of FIG. 1 according to one embodiment of the present invention.
The vehicular lamp 10 includes a front left vehicular lamp 11L, a rear left vehicular lamp 12L, a front right vehicular lamp 11R, a rear right vehicular lamp 12R, and an indicator turn signal portion (indicator left display portion 13L in FIG. 1). , an indicator light display portion 13R) and a blinker relay 14. As shown in FIG.

Here, the front left vehicle lighting device 11L, the rear left vehicle lighting device 12L, the front light vehicle lighting device 11R, the rear right vehicle lighting device 12R, the indicator blinker portion 13LR (indicator left display portion 13L in FIG. 1, the indicator light Since each of the display units 13R) has the same configuration, the vehicle lighting device will be described using the rear left vehicle lighting device 12L. In addition, the front left vehicle lamp 11L, the rear left vehicle lamp 12L, the front light vehicle lamp 11R, the rear right vehicle lamp 12R, the indicator blinker portion (indicator left display portion 13L in FIG. 1, indicator light display portion 13R) and the winker relay 14 are each supplied with electric power for driving or lighting the light source from a battery (not shown) of the motorcycle 300 (FIG. 1).

The rear left vehicle lamp 12L includes a first standard light source unit 21, a second standard light source unit 22_1, a second standard light source unit 22_2, a second standard light source unit 22_3, an abnormality detection unit 23, a pseudo disconnection unit 24, and a delay control unit 25. Each of the In this embodiment, three second standard light source units 22_1, 22_2, and 22_3 are provided as the second standard light source units 22. ≧4). In the following description, the second standard light source section 22_1, the second standard light source section 22_2, and the second standard light source section 22_3 are simply referred to as the second standard light source section 22 when collectively described.

The blinker relay 14 generates, for example, a blinker drive signal (lighting control signal), which is a pulse signal that repeats the “H” level/“L” level at a predetermined frequency, and output for each In addition, the winker relay 14 generates winker drive signals of normal frequency (first frequency) and abnormal frequency (second frequency). Here, the second frequency is set to a frequency that can be confirmed to be different from the first frequency, for example, a frequency twice as high as the first frequency. Here, the blinker relay 14 measures the current amount of the blinker drive signal when supplying the blinker drive signal, and if the current amount falls below a preset current amount, it indicates that the light source supplying the blinker drive signal is disconnected. To detect. Then, the blinker relay 14 changes the frequency of the blinker drive signal to be supplied from the normal frequency to the abnormal frequency in order to notify the abnormal state that the light source is disconnected.

As an example, when the first frequency is 85 times/min, the second frequency is set to 190 times/min. Here, the blinker relay 14 is supplied with disconnection signals from each of the front left vehicle lamp 11L, the rear left vehicle lamp 12L, the front right vehicle lamp 11R, the rear right vehicle lamp 12R, and the indicator blinker portion. In this case, the frequency of the blinker drive signal to be generated is changed from the normal frequency to the abnormal frequency.

The first standard light source section 21 includes a light source circuit 211 and a disconnection control section 212 .
The light source circuit 211 includes, for example, LEDs (light emitting diodes) as light sources (first light sources of 11L_1, 11R_1, 12L_1, and 12R_1) and a first drive circuit that drives the LEDs. The signal causes the first driver circuit to blink the LED.

The wire breakage control unit 212 is provided with a pseudo wire breakage mechanism that puts the LED in the first standard light source unit 21 into a wire breakage state in a pseudo (virtual) state in response to a pseudo wire breakage signal supplied from the outside. The pseudo disconnection mechanism is, for example, a switch circuit such as a transistor connected in series with an LED (light source). Make the LED disconnected.

For example, if the transistor is an npn-type bipolar transistor or an n-channel MOS transistor, as will be described later, it is turned off by changing from the "H" level to the "L" level. The current by the winker drive signal supplied from the winker relay 14 is not supplied to the first light source, and the first light source is not turned on in a pseudo disconnection state.

In addition, in the present embodiment, each of the LEDs (light sources) of the light source circuit 222 in each of the second standard light source section 22_1, the second standard light source section 22_2, and the second standard light source section 22_3, which will be described later, is also connected in series with the switch circuit. , and is put in a pseudo disconnection state by the disconnection control unit 212 in the same manner as the first light source of the first standard light source unit 21 .

Each of the second standard light source sections 22 (second standard light source section 22_1, second standard light source section 22_2, and second standard light source section 22_3) includes a delay section 221 and a light source circuit 222, respectively.
The delay unit 221 delays the blinker driving signal supplied to the input terminal from the preceding stage unit (the first standard light source unit 21 or the second standard light source unit 22) by a predetermined time, and outputs it from the output terminal to the light source circuit 222 and the next signal. Output to the input terminal of the delay section 221 in the second standard light source section 22 of the stage.
For example, the delay unit 221 of the second standard light source unit 22_1 delays the light source circuit 222 of the second standard light source unit 22_1 and the input terminal of the delay unit 221 of the second standard light source unit 22_2 for a predetermined time. Outputs a delayed blinker drive signal.

The delay unit 221 delays the blinker drive signal input from the input terminal by a predetermined time by means of a delay circuit between the input terminal and the output terminal, and outputs the signal from the output terminal to the light source circuit 222 and the second standard at the next stage. It is output to the delay section 221 in the light source section 22 . Further, when a delay control signal is supplied from the delay control unit 25, the delay unit 221 short-circuits the input terminal and the output terminal without delaying the blinker drive signal input from the input terminal, and the light source circuit from the output terminal. 222 and the delay unit 221 in the second standard light source unit 22 in the next stage.

Then, the delay unit 221 in the second standard light source unit 22_1 delays the blinker drive signal supplied at the same time as the light source circuit 211 in the first standard light source unit 21 by a predetermined time (for example, n1 ms), and the second standard light source unit 22_1 and the delay unit 221 in the second standard light source unit 22_2.
As a result, the light source (11L_2) of the light source circuit 222 in the second standard light source section 22_1 is turned on after the light source (11L_1) of the light source circuit 211 in the first standard light source section 21 blinks (lights up for the pulse width of the blinker drive signal). , after a delay of n1ms.

Further, the delay unit 221 in the second standard light source unit 22_2 delays the blinker drive signal supplied at the same time as the light source circuit 211 in the first standard light source unit 21 by a predetermined time (for example, n2 ms), and the second standard light source unit 22_2 and the delay unit 221 in the second standard light source unit 22_3.
As a result, the light source (11L_3) of the light source circuit 222 in the second standard light source section 22_2 is turned on after the light source (11L_2) of the light source circuit 222 in the second standard light source section 22_1 blinks (lights up for the pulse width of the blinker drive signal). , after a delay of n2ms.

In addition, the delay unit 221 in the second standard light source unit 22_3 delays the blinker drive signal supplied at the same time as the light source circuit 211 in the first standard light source unit 21 by a predetermined time (for example, n3 ms), and the second standard light source unit 22_3 to the light source circuit 222 in .
As a result, the light source (11L_4) of the light source circuit 222 in the second standard light source section 22_3 is turned on after the light source (11L_3) of the light source circuit 222 in the second standard light source section 22_2 blinks (lights up for the pulse width of the blinker drive signal). , after a delay of n3ms.
As described above, each of the second standard light source units 22_1 to 22_4 delays the turn signal drive signal supplied to the first standard light source unit 21 by n1ms, n2ms, and n3ms (n1<n2), respectively. <n3).

Therefore, n1 ms after the light source (11L_1) in the first standard light source unit 21 blinks, the light source (11L_2) in the second standard light source unit 22_1 blinks, and n2 ms after the light source in the first standard light source unit 21 blinks, the second standard light source unit 21 blinks. The light source (11L_3) in the standard light source section 22_2 blinks, and n3 ms after the light source in the first standard light source section 21 blinks, the light source (11L_4) in the second standard light source section 22_3 blinks to perform sequential lighting.

Similar to the light source circuit 211, the light source circuit 222 is any one of the light sources (11L_2 to 11L_4, 11R_2 to 11L_4, 12L_2 to 12L_4, 12R_2 to 12R_4, that is, the second light source to the n-th light source, hereinafter collectively referred to as the n-th light source). It has an LED as a light source) and has a second drive circuit for driving the LED. In addition, the light source circuit 222 causes the second drive circuit to flash the LED according to the winker drive signal supplied from the winker relay 14 . Further, the second drive circuit is provided with a drive stop mechanism for stopping blinking of the LED in response to a drive stop signal supplied from the outside. The drive stop mechanism is, for example, a switch circuit such as a transistor connected in series with the LED, and the switch circuit is turned off by the drive stop signal, causing no current to flow through the LED, thereby causing a pseudo disconnection of the LED. state.

The abnormality detection unit 23 detects disconnection of each n-th light source in each of the second standard light source unit 22_1, the second standard light source unit 22_2, and the second standard light source unit 22_3, and outputs the detection result to the pseudo disconnection unit 24 as an abnormality signal. Output for In the present embodiment, the abnormality detection unit 23 determines that the current consumption of each n-th light source in each of the second standard light source unit 22_1, the second standard light source unit 22_2, and the second standard light source unit 22_3 corresponds to the blinker drive signal. An abnormality (disconnection) of each of the n-th light sources is detected by detecting whether or not the current flows through the n-th light source.

That is, the abnormality detection unit 23 converts the consumption current of each n-th light source in each of the second standard light source unit 22_1, the second standard light source unit 22_2, and the second standard light source unit 22_3 into a voltage, and converts the voltage into a voltage for sequential blinking. Integration is performed for each period, and it is determined whether or not the integrated voltage of the integration result is less than a preset reference voltage (whether or not a predetermined condition is satisfied).
Then, when the integrated voltage is equal to or higher than a preset reference voltage (when predetermined conditions are met), the abnormality detection unit 23 detects the voltages of the second standard light source unit 22_1, the second standard light source unit 22_2, and the second standard light source unit 22_3. Detect that all of the nth light sources in each are not disconnected.

On the other hand, when the integrated voltage is less than the preset reference voltage (when the predetermined condition is not satisfied), the abnormality detection unit 23 detects the second standard light source unit 22_1, the second standard light source unit 22_2, and the second standard light source unit 22_3. It is detected that one or more of the n-th light sources in each of are disconnected. Here, when detecting disconnection of the n-th light source, the abnormality detection unit 23 outputs an abnormality signal to the pseudo disconnection unit 24 .

When the abnormality signal is supplied from the abnormality detection section 23, the pseudo disconnection section 24 outputs a pseudo disconnection signal to the disconnection control section 211 (changes the output to the disconnection control section 211, for example, from "H" level to " L level”).
Here, the pseudo disconnection unit 24 has an output holding function of latching the pseudo disconnection signal, and continues to output the pseudo disconnection signal unless the power is reset. The pseudo disconnection signal is also reset by replacing the cut light source and restarting it while the vehicle power is off.

Then, when the pseudo disconnection signal is supplied, the disconnection control unit 211 puts each of the first light source, the second light source, the third light source, and the fourth light source into a pseudo disconnection state.
As a result, current does not flow through the first light source of the first standard light source unit 21, and the blinker relay 14 detects disconnection of the first light source due to the decrease in the amount of current flowing out, and changes the frequency of the blinker drive signal. is changed from the normal frequency to the abnormal frequency.

The delay control unit 25 detects whether the frequency of the blinker drive signal supplied from the blinker relay 14 is the normal frequency or the abnormal frequency. At this time, when the frequency of the turn signal drive signal is the normal frequency, the delay control unit 25 delays the turn signal drive signal input from the input terminal to the delay unit 221 in each of the second standard light source units 22 for a predetermined period of time. is delayed by a delay circuit between the input terminal and the output terminal and output from the output terminal. On the other hand, when the frequency of the blinker drive signal is an abnormal frequency, the delay control unit 25 inputs the blinker drive signal input from the input terminal to the delay unit 221 in each of the second standard light source units 22 without delaying it. The terminal and the output terminal are short-circuited to perform the process of outputting from the output terminal.

Here, for example, the delay control unit 25 converts the frequency of the blinker drive signal into a frequency voltage, and compares the frequency voltage with a preset threshold voltage. At this time, when the frequency voltage is equal to or lower than the threshold voltage, the delay control section 25 detects that the frequency voltage is the normal frequency, and sends a delay control signal to each delay section 221 of the second standard light source section 22. No output. On the other hand, when the frequency voltage exceeds the threshold voltage, the delay control section 25 detects that the frequency voltage is an abnormal frequency, and outputs a delay control signal to each delay section 221 of the second standard light source section 22. do. The threshold voltage is set, for example, as an intermediate voltage between frequency voltages obtained by frequency/voltage conversion of each of the normal frequency and the abnormal frequency.

<Operation example 1>
Next, an operation example when the light source of the vehicle lamp according to the embodiment of the present invention is disconnected will be described with reference to the drawings. Here, in order to turn left, the driver turns on the blinker switch to the left turn side in order to sequentially light each of the rear left blinker portion 12L and the front left blinker portion 11R, which are the blinkers on the left side.
FIG. 3 is a diagram illustrating an operation example when the LED of the light source circuit 211 of the first standard light source section 21 in the rear left blinker section 12L is disconnected. In FIG. 3, only the rear left blinker portion 12L and the front left blinker portion 11R are shown for simplicity of explanation.

When the LED of the light source circuit 211 of the first standard light source portion 21 in the rear left blinker portion 12L is disconnected, the current of the blinker drive signal is applied only to the LED of the light source circuit 211 of the first standard light source portion 21 in the front left blinker portion 11L. It becomes flowing.
As a result, the current of the blinker drive signal of the blinker relay 14 is halved and falls below the preset current amount, so that the frequency of the pulse of the generated blinker drive signal changes from the normal frequency to the abnormal frequency.

Then, the delay control unit 25 in the rear left blinker unit 12L detects that the pulse frequency of the blinker drive signal has changed from the normal frequency to the abnormal frequency.
The delay control unit 25 in the rear left blinker unit 12L does not delay the delay units 221 of the second standard light source units 22_1, 22_2, and 22_3 in the rear left blinker unit 12L. Send a delayed control signal to indicate control.

The delay unit 221 of each of the second standard light source unit 22_1, the second standard light source unit 22_2, and the second standard light source unit 22_3 in the rear left blinker unit 12L delays the blinker drive signal supplied from the blinker relay 14. Each is output to the light source circuit 222 .
As a result, the light sources in each of the first standard light source section 21, the second standard light source section 22_1, the second standard light source section 22_2, and the second standard light source section 22_3 in the rear left blinker section 12L are simultaneously (at the same timing) abnormal. Blink at frequency.

Further, the delay control section 25 in the front left blinker section 11L detects that the pulse frequency of the blinker drive signal has changed from the normal frequency to the abnormal frequency.
The delay control unit 25 in the front left blinker unit 11L does not delay the delay unit 221 of each of the second standard light source unit 22_1, the second standard light source unit 22_2, and the second standard light source unit 22_3 in the front left blinker unit 11L. Send a delayed control signal to indicate control.

Each delay unit 221 of the second standard light source unit 22_1, the second standard light source unit 22_2, and the second standard light source unit 22_3 in the front left blinker unit 11L delays the blinker drive signal supplied from the blinker relay 14. Each is output to the light source circuit 222 .
As a result, the light sources in each of the first standard light source section 21, the second standard light source section 22_1, the second standard light source section 22_2, and the second standard light source section 22_3 in the front left blinker section 11L are simultaneously (at the same timing) abnormal. Blink at frequency.
Although not shown in FIG. 3, the indicator left display portion 13L in the indicator blinker portion 13LR also blinks at an abnormal frequency together with each light source in the front left blinker portion 11L.

<Operation example 2>
FIG. 4 is a diagram for explaining an operation example when the LED of the light source circuit 222 of the second standard light source section 22_2 in the front left blinker section 11L is disconnected. Here, as in the case of FIG. 3, the driver turns the blinker switch to the left turn side in order to sequentially light each of the rear left blinker portion 12L and the front left blinker portion 11L, which are the blinkers on the left side, in order to turn left. It is in ON state.
FIG. 4 is a diagram for explaining an operation example when the LED of the light source circuit 222 of the second standard light source section 22_2 in the front left blinker section 11L is disconnected. In FIG. 4, only the rear left blinker portion 12L and the front left blinker portion 11L are shown for the sake of simplicity of explanation.

When the LED of the light source circuit 222 of the second standard light source section 22_2 in the front left blinker section 11L is disconnected, the current consumption of the light source in each of the second standard light source section 22_1, the second standard light source section 22_2, and the second standard light source section 22_3 is lowered by the consumption current of the light source of the second standard light source section 22_2.
Then, the abnormality detection unit 23 in the front left blinker unit 11L detects that the integrated voltage is less than the preset reference voltage.
As a result of this detection, the abnormality detection section 23 in the front left blinker section 11L outputs an abnormality signal to the pseudo disconnection section 24 of the front left blinker section 11L.

Pseudo disconnection portion 24 in front left blinker portion 11L outputs a pseudo disconnection signal to disconnection control portion 211 .
As a result, the disconnection control unit 211 causes the LEDs of the light source circuits of the first standard light source unit 21, the second standard light source unit 22_1, the second standard light source unit 22_2, and the second standard light source unit 22_3 in the front left blinker unit 11L to Pseudo-disconnection state.

Then, due to disconnection of the LED of the light source circuit 211 of the first standard light source portion 21 in the rear left blinker portion 12L, the blinker drive signal is sent only to the LED of the light source circuit 211 of the first standard light source portion 21 in the front left blinker portion 11L. current flows.
As a result, the blinker relay 14 changes the pulse frequency of the generated blinker drive signal from the normal frequency to the abnormal frequency because the current of the blinker drive signal is halved and falls below the preset current amount.

At this time, as described above, the disconnection control unit 212 of the front left blinker unit 11L also puts each of the second standard light source unit 22_1, the second standard light source unit 22_2, and the second standard light source unit 22_3 into a pseudo disconnection state. .
As a result, the light source (LED) of the light source circuit 222 in each of the second standard light source section 22_1, the second standard light source section 22_2, and the second standard light source section 22_3 of the front left blinker section 11L is supplied with the blinker drive signal of the abnormal frequency. Even if it is turned off, it does not blink and maintains the extinguished state.

Then, the delay control unit 25 in the rear left blinker unit 12L detects that the pulse frequency of the blinker drive signal has changed from the normal frequency to the abnormal frequency.
The delay control unit 25 in the rear left blinker unit 12L does not delay the delay units 221 of the second standard light source units 22_1, 22_2, and 22_3 in the rear left blinker unit 12L. Send a delayed control signal to indicate control.

The delay unit 221 of each of the second standard light source unit 22_1, the second standard light source unit 22_2, and the second standard light source unit 22_3 in the rear left blinker unit 12L delays the blinker drive signal supplied from the blinker relay 14. Each is output to the light source circuit 222 .
As a result, the light sources in each of the first standard light source section 21, the second standard light source section 22_1, the second standard light source section 22_2, and the second standard light source section 22_3 in the rear left blinker section 12L are simultaneously (at the same timing) abnormal. Blink at frequency.
Although not shown in FIG. 4, the indicator left display portion 13L in the indicator blinker portion 13LR also blinks at an abnormal frequency together with each light source in the rear left blinker portion 12L.

According to the embodiment described above, the first standard light source section 21 having the light source circuit 211 and the disconnection control section 212 and the second standard light source section having the delay section 221 and the light source circuit 222 are connected to each other by the abnormality detection section 23 and the pseudo disconnection. By combining with the unit 24 and using the disconnection control unit 212 of the first standard light source unit 21 in common for each of the first standard light source unit 21 and the second standard light source unit 22, the light source circuit 211 and sequential lighting are sequentially blinking Even if the number of light sources to be sequentially lit is different, that is, even if the number of second standard light source units is different, Each of the first standard light source section 21 and the second standard light source section 22 can be used as a standard configuration, making it possible to reduce manufacturing costs.
Further, in the present embodiment, a vehicle lighting device that performs sequential lighting has been described as an example. , when the blinker relay 14 supplies the blinker driving signal, the second standard light source unit 22_1, the second standard light source unit 22_2, and the second standard light source unit 22_3 blink simultaneously with the first standard light source unit 21. You may use it for a vehicle lamp.

Further, in the above-described embodiment, the abnormality detection unit 23 outputs an abnormality signal to the pseudo disconnection unit 24, the pseudo control unit 24 outputs a pseudo disconnection signal to the disconnection control unit 212, and the disconnection control unit 212 puts the light sources of the first standard light source section 21, the second standard light source section 22_1, the second standard light source section 22_2, and the second standard light source section 22_3 into the pseudo disconnection state by the pseudo disconnection signal.
However, the disconnection control unit 212 is not provided, and the pseudo disconnection unit 24 directly simulates the light sources of the first standard light source unit 21, the second standard light source unit 22_1, the second standard light source unit 22_2, and the second standard light source unit 22_3. It may be configured to be in a disconnection state. In this case, the drive circuit for driving the light source is configured to drive the LED, which is the light source, in response to the false disconnection signal from the false disconnection unit 24 so as not to turn on.

In addition, the mode for carrying out the present invention has been described using the embodiments with reference to the drawings, but the present invention is not limited to such embodiments in any way, and is within the scope of the gist of the present invention. Various modifications and substitutions can be made in .

DESCRIPTION OF SYMBOLS 10... Vehicle lamp 11L... Front left blinker part 11R... Front right blinker part 12L... Rear left blinker part 12R... Rear right blinker part 13... Indicator 13L... Indicator left display part 13
13R... indicator light display unit 13
13LR indicator turn signal unit 14 turn signal relay 21 first standard light source unit 22, 22_1, 22_2, 22_3 second standard light source unit 23 abnormality detection unit 24 pseudo disconnection unit 25 delay control unit 211, 222 light source circuit 212... Disconnection control unit

Claims (14)

A vehicle lamp in which light sources are arranged,
a first standard light source unit having a first light source and a disconnection control unit that performs control to set the inside of the vehicle lamp to a disconnection state;
A second standard light source unit connected to the first standard light source unit and having a second light source,
When the second light source is disconnected, the disconnection control unit places the first light source and the second light source in a pseudo disconnection state,
Having a plurality of the second standard light source units,
an abnormality detection unit that detects an abnormality of the second light source in each of the second standard light source units and changes an output to the disconnection control unit if any one of the second light sources has an abnormality;
prepare further
A vehicle lighting device characterized by: A vehicle lamp in which light sources are arranged,
a first standard light source unit having a first light source and a disconnection control unit that performs control to set the inside of the vehicle lamp to a disconnection state;
A second standard light source unit connected to the first standard light source unit and having a second light source,
When the second light source is disconnected, the disconnection control unit places the first light source and the second light source in a pseudo disconnection state,
a relay that drives each of the first light source and the second light source supplies power to the first light source at a predetermined cycle;
The second standard light source unit has a delay unit that delays the timing of blinking the second light source with respect to the timing of blinking the first light source.
A vehicle lighting device characterized by: The abnormality detection unit detects current consumption of each of the second light sources , and disconnection occurs in the second light source when the current consumption of at least one of the second light sources does not satisfy a predetermined condition. The vehicular lighting device according to claim 1 , wherein the output to the disconnection control unit is changed assuming that the disconnection control unit is changed. The abnormality detection unit converts the consumption current of each of the second light sources into a voltage, integrates the voltage to obtain an integrated voltage, and detects that the integrated voltage is lower than a preset reference voltage. 4. The vehicle lamp according to claim 3, wherein it is determined that disconnection has occurred in the two light sources. The vehicle lamp according to any one of claims 1 to 4, further comprising a winker relay that drives each of the first light source and the second light source. a blinker relay supplying power to the first light source at a predetermined cycle;
Each of the second standard light source units has a delay unit that delays the timing of blinking the first light source by a different time,
The vehicle lamp according to any one of claims 1 to 5, wherein each of the delay units sequentially blinks each of the second light sources in order of arrangement. 7. The vehicle lamp according to claim 6, wherein each of said second standard light source units flashes all of said second light sources at the same timing when said first light source is disconnected. It is determined whether the frequency of the pulse for blinking the light source supplied from the blinker relay is a first frequency or a second frequency higher than the first frequency, and if the frequency is the second frequency, the delay section performs a delay. and a delay control unit that performs control to prevent the
The vehicle lighting device according to claim 7, wherein the winker relay converts the frequency of the pulse from the first frequency to the second frequency when the first light source is disconnected. The delay control unit converts the frequency of the pulse into a frequency voltage that is a voltage, compares the frequency voltage with a preset threshold voltage corresponding to the second frequency, and determines that the pulse frequency is the second frequency. 9. The vehicle lighting device according to claim 8, wherein it is determined whether or not the value exceeds . The first light source and the second light source are disconnected when the output from the abnormality detection unit for detecting the abnormality of the first standard light source unit, the second standard light source unit, and the second light source changes. A front vehicle lighting device and a rear vehicle lighting device each having a disconnection control unit and the delay control unit,
When the first light source of one of the front vehicle lighting device and the rear vehicle lighting device is disconnected, the delay control section of the other is set to the delay section of the second standard light source section of the other. 10. The vehicular lamp according to claim 8 or claim 9, wherein each of the first light source and the second light source in the other is simultaneously caused to flash by the second frequency without delaying the flashing. vessel. A vehicle lamp, wherein the vehicle lamp according to any one of claims 1 to 10 is a vehicle turn signal. A vehicle comprising the vehicle lamp according to any one of claims 1 to 11. 13. A vehicle according to claim 12, wherein the vehicle is a saddle-type vehicle. 13. The vehicle of claim 12, wherein the vehicle is a motorcycle.

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