JP2005138701A - Lighting unit for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting unit for a vehicle having an effect that a control device turns off the lamp in the lighting state when a vehicle is in the stand-by state such as stopping at a red light at an intersection or the like and traffic jam at a curved road, and in the state of a speed lower than a second set vehicle speed lasting for a set stand-by time or longer, that power consumption of the vehicle is prevented, and that glare is not likely to be given to a pedestrian and a driver of another vehicle. <P>SOLUTION: The control device has: first control function for turning on/off the lamp based on ON signal/Off signal from a blinker switch and a first set vehicle speed signal from a vehicle speed sensor; second control function for turning on/off the lamp based on the first set vehicle speed signal from the vehicle speed sensor and a set steering angle signal for a steering angle sensor; and third control function for turning off the lamp in the lighting state when the state of a speed lower than the second set vehicle speed lower than the first set vehicle speed lasts for the set stand-by time, and thereafter for turning on the lamp in the non-lighting state when the state of such a lower vehicle speed is canceled. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a vehicular lamp that illuminates the road surface on the side (right side or left side) of the vehicle when the vehicle turns right or left at an intersection or a corner, or travels on a curved road (vehicle side illumination lamp). It is about. In this specification and claims, “road surface and the like” refers to a road surface and a person (pedestrian or the like) or an object (such as another vehicle, a road sign or a building) on the road surface.

  Conventionally, a vehicle lamp that illuminates a road surface on the side of a vehicle when the vehicle turns right or left at an intersection or a corner, or travels along a curved road, such as an AFS (Adaptive Front Lighting System) ( For example, Patent Document 1, Patent Document 2). The vehicular lamp includes lamps (5, 6) for irradiating light on a side road surface of the vehicle, turn signal switches (7, 8) (15, 16), vehicle speed sensors (2) (12), Motors (3-4, 4-4) (7) for changing the light irradiation angle of the lamps (5, 6) and control devices (10) (1) are provided.

  Hereinafter, the operation of the conventional vehicle lamp will be described. When the winker switches (7, 8) (15, 16) are turned on in the state where the vehicle is below the set vehicle speed (10 km / h, 30 km / h), the control devices (10), (1) 4-4) (7) is driven to change the light irradiation angle of the lit lamps (5, 6) to the maximum angle. As a result, the conventional vehicular lamp can illuminate the road surface on the side of the vehicle when the vehicle turns right or left at an intersection or corner, or when traveling on a curved road.

  However, the conventional vehicular lamp described above is in a state where the vehicle is stopped at an intersection, a corner, a curved road, or the like, or in a state where the vehicle is traveling at a low speed, for example, a state where the vehicle is waiting for a signal at an intersection or a curved road Even in a congested state (hereinafter referred to as a standby state at a vehicle intersection or the like), (Lamps 5 and 6) are in a lighting state. For this reason, the conventional vehicular lamp consumes electric power of the vehicle and may give glare to a pedestrian walking at an intersection or a driver of another vehicle that is running or stopped.

Japanese Patent Laid-Open No. 7-186819 JP 2001-270382 A

  The problem to be solved by the present invention is that even in the standby state at the intersection of the vehicle, the lamps (5, 6) are in the lighting state, so that the power of the vehicle is consumed. There is a possibility of giving glare to the driver of the vehicle.

  According to the present invention, the control device turns on and off the lamp based on the ON signal OFF signal from the turn signal switch and the first set vehicle speed signal from the vehicle speed sensor, and the first set vehicle speed signal from the vehicle speed sensor. And a second control function for turning on and off the lamp based on the steering angle signal from the steering angle sensor, and a lighting state when a state below the second set vehicle speed, which is lower than the first set vehicle speed, exceeds the set standby time. A third control function for turning off a lamp and then turning on the lamp in the off state when the state equal to or lower than the second set vehicle speed is released.

  The vehicular lamp according to the present invention is controlled by the third control function when the vehicle is in a standby state such as a signal waiting at an intersection or a traffic jam such as a curved road, and when a state equal to or lower than the second set vehicle speed elapses beyond the set standby time. Turn off the lamp when the device is on. For this reason, the vehicular lamp of the present invention can prevent the power consumption of the vehicle, and can achieve the effect that there is no possibility of giving glare to pedestrians, drivers of other vehicles, and the like. .

  In the vehicular lamp according to the present invention, the control device is turned off when the vehicle is released from the standby state such as waiting for a signal and starts running by the third control function, and the state below the second set vehicle speed is released. Turn on the lamp in the state. For this reason, the vehicular lamp of the present invention can illuminate the road surface on the side of the vehicle when the vehicle turns right or left at an intersection or a corner.

  Furthermore, the vehicular lamp according to the present invention is provided with the first control function and the second control function when the vehicle turns right or left at an intersection or a corner at a vehicle speed equal to or lower than the first set vehicle speed or when traveling on a curved road. When the switch is turned on, the control device turns on the lamp in the off state. Also, when the vehicle turns right or left at an intersection or turn at a vehicle speed lower than the first set vehicle speed, or when traveling on a curved road, if the steering angle exceeds the set rudder angle, the control unit turns off the lamp. Let For this reason, the vehicular lamp of the present invention can illuminate the road surface on the side of the vehicle when the vehicle turns right or left at an intersection or a corner.

  Furthermore, in the vehicular lamp according to the present invention, the turn signal switch is turned ON to change the lane when the vehicle is traveling at the first set high speed or higher vehicle speed by the first control function and the second control function. In addition, even if the steering angle exceeds the set steering angle, the lamp does not light up. For this reason, the vehicular lamp according to the present invention does not have the trouble that the lamp is turned on while the vehicle is traveling at the first set high speed or higher vehicle speed.

  Embodiments of a vehicular lamp according to the present invention will be described below in detail with reference to the accompanying drawings. Note that the present invention is not limited to the embodiments.

  Hereinafter, the configuration of the vehicular lamp in this embodiment will be described. The vehicle lamp in this embodiment illuminates a road surface on the side of the vehicle when the vehicle turns right or left at an intersection or a corner. As shown in FIG. 1, the vehicle lamp in this embodiment includes a right lamp 1R, a left lamp 1L, a right turn signal switch 2R, a left turn signal switch 2L, a vehicle speed sensor 3, and a steering angle sensor 12. The hazard switch 4 and the control device 5 (control circuit unit and ECU / electronic control unit) are provided.

  The right lamp 1R and the left lamp 1L are respectively provided on the right and left sides of the front portion of the vehicle C, as shown in FIGS. The right lamp 1R and the left lamp 1L are turned on when the vehicle C makes a right turn at an intersection or a corner, and when the vehicle C makes a right turn, for example, a road surface on the side of the vehicle C. It illuminates the road surface ahead of the turning direction. The right lamp 1R and the left lamp 1L are connected to an ignition switch 6 and a battery 7 via the control device 5. The right lamp 1R and the left lamp 1L are controlled based on the right turn signal switch 2R, the ON signal OFF signal from the left turn signal switch 2L, and / or the vehicle speed signal from the vehicle speed sensor 3. Turning on and off is controlled by the device 5.

  The right turn signal switch 2 </ b> R and the left turn signal switch 2 </ b> L are connected to the control device 5. In this example, the right turn signal switch 2R and the left turn signal switch 2L are turned on by the driver when turning right or left at an intersection, and the steering handle (not shown) is turned right after turning right at the intersection. It turns off automatically when it returns more than a predetermined angle. The right turn signal switch 2R and the left turn signal switch 2L output an ON signal (for example, a high level signal) to the control device 5 when ON, and an OFF signal (for example, a low level signal) when OFF. Is output to the control device 5. Further, when the right turn signal switch 2R and the left turn signal switch 2L are ON, a right turn signal lamp (not shown) and a left turn signal lamp (not shown) are lit in a blinking manner, and the right turn signal switch 2R is turned on. When the left turn signal switch 2L is OFF, the right turn signal lamp (not shown) and the left turn signal lamp (not shown) are turned off.

  The vehicle speed sensor 3 is connected to the control device 5. The vehicle speed sensor 3 detects a vehicle speed and outputs it to the control device 5 as a vehicle speed signal. The steering angle sensor 12 detects a turning direction and a turning angle of the vehicle C, and outputs the detection signal to the control device 5 as a steering angle signal. The vehicle turning direction and the vehicle turning angle are closely related to the steering angle (the steering angle of the steered wheels). The steering angle is detected by a sensor that detects a rotation angle and a rotation direction of a steering wheel (steering handle).

  The hazard switch 4 is connected to the control device 5. The hazard switch 4 is operated by a driver to turn on and off. The hazard switch 4 outputs an ON signal (for example, a high level signal) to the control device 5 when ON, and outputs an OFF signal (for example, a low level signal) to the control device 5 when OFF. It is. Further, when the hazard switch 4 is ON, all the turn signal lamps (not shown) flash and light at the same time to call attention to drivers of other vehicles, and when the hazard switch 4 is OFF, All turn signal lamps (not shown) are turned off.

  As shown in FIG. 1, the control device 5 includes an interface circuit 8 as an external signal input device, a central processing unit / CPU 9, a driver circuit 10R for the right lamp as a control signal output device, and a driver circuit 10R for the left lamp. The driver circuit 10L and the power supply circuit 11 are included. The control device 5 uses a computer mounted on a vehicle, for example, a car navigation (navigation system) computer.

  The interface circuit 8 is connected to the right turn signal switch 2R, the left turn signal switch 2L, the vehicle speed sensor 3, the steering angle sensor 12, the hazard switch 4, and the central processing unit / CPU 9, respectively. It is connected. The interface circuit 8 includes an ON signal OFF signal from the right turn signal switch 2R, a left turn signal switch 2L, a vehicle speed signal from the vehicle speed sensor 3, a steering angle signal from the steering angle sensor 12, and the An ON signal OFF signal from the hazard switch 4 is input, this input signal is processed into a signal that can be handled by the central processing unit / CPU 9, and this processing signal is output to the central processing unit / CPU 9.

  The central processing unit / CPU 9 is connected to the interface circuit 8, the right lamp driver circuit 10R, the left lamp driver circuit 10L, and the power supply circuit 11, respectively. The central processing unit / CPU 9 sequentially processes the steps (procedures) in the flowchart shown in FIG. 2 based on the processing signal from the interface circuit 8 to turn on the right lamp 1R and the left lamp 1L. It is determined that the lamp is turned off, and a lighting signal extinction signal is output to the driver circuit 10R for the right lamp and the driver circuit 10L for the left lamp.

  The right lamp driver circuit 10R and the left lamp driver circuit 10L include the right lamp 1R, the left lamp 1L, the ignition switch 6, the battery 7, and the central processing unit / CPU 9. Are connected to each. The right lamp driver circuit 10R and the left lamp driver circuit 10L turn on and off the right lamp 1R and the left lamp 1L in response to a turn-on signal turn-off signal from the central processing unit / CPU 9.

  The control device 5 (central processing unit / CPU 9) has a first control function, a second control function, a third control function, and an auxiliary control function.

  The first control function is based on an ON signal OFF signal from the right turn signal switch 2R, a left turn signal switch 2L, and a first set vehicle speed signal from the vehicle speed sensor 3, and the right lamp 1R, This is a control function for turning on and off the left lamp 1L. That is, the first control function is turned off based on the ON signal from the right turn signal switch 2R and the left turn signal switch 2L and the vehicle speed signal from the vehicle speed sensor 3 equal to or lower than the first set vehicle speed. The right lamp 1R and the left lamp 1L are turned on, and the right lamp 1R in the lit state is turned on based on an OFF signal from the right turn signal switch 2R and the left turn signal switch 2L. This is a control function for turning off the left lamp 1L.

  The second control function turns on and off the right lamp 1R and the left lamp 1L based on a first set vehicle speed signal from the vehicle speed sensor 3 and a set steering angle signal from the steering angle sensor 12. This is a control function. In other words, the second control function is in the off state based on a vehicle speed signal equal to or lower than the first set vehicle speed from the vehicle speed sensor 3 and a steering angle signal equal to or higher than the set steering angle from the steering angle sensor 12. The right lamp 1R and the left lamp 1L are turned on, and the right lamp 1R and the left lamp 1L are turned on based on a steering angle signal less than a set steering angle from the steering angle sensor 12. Is a control function to turn off the light.

  The third control function turns off the right lamp 1R and the left lamp 1L, which are in a lit state, when the state below the second set vehicle speed, which is lower than the first set vehicle speed, exceeds the set standby time, This is a control function for turning on the right lamp 1R and the left lamp 1L, which are turned off when the state below the second set vehicle speed is released. That is, the third control function is based on a vehicle speed signal from the vehicle speed sensor 3 equal to or lower than the second set vehicle speed in the ON signal of the right turn signal switch 2R and the left turn signal switch 2L. This is a control function for turning on and off the left lamp 1L.

  The auxiliary control function is a control function for stopping the first control function, the second control function, and the third control function based on an ON signal from the hazard switch 4. That is, the auxiliary control function turns on the right turn signal switch 2R and the left turn signal switch 2L based on the ON signal from the hazard switch 4, or rotates the steering wheel beyond a set steering angle. However, the control function is such that the right lamp 1R and the left lamp 1L are not lit.

  The first set vehicle speed in the first control function is, for example, 40 km / h or 60 km / h. Therefore, the first set high speed vehicle speed or less is 40 km / h or less, or 60 km / h or less. The set steering angle in the second control function is, for example, 10 ° or 30 °. Accordingly, the set steering angle or more is, for example, 10 ° or more, or 30 ° or more, while the less than the set steering angle is, for example, less than 10 ° or less than 30 °. Further, the second set vehicle speed in the third control function is, for example, 10 km / h or 0 km / h. Therefore, the state below the second set vehicle speed is a low-speed traveling state or a stopped state. Furthermore, the set waiting time in the third control function is, for example, 5 seconds. The first set vehicle speed, the set steering angle, the second set vehicle speed, and the set standby time are not particularly limited.

  The control device 5 (central processing unit / CPU 9) has a function of turning off the right lamp 1R and the left lamp 1L. Hereinafter, the turning-off control of the right lamp 1R and the left lamp 1L will be described with reference to FIGS. 6 and 7, the vertical axis indicates the lighting rate of the right lamp 1R and the left lamp 1L, the full lighting state of the right lamp 1R and the left lamp 1L is (Duty = 100%), and the right side. The unlit state of the left lamp 1R and the left lamp 1L is (Duty = 0%). On the other hand, the horizontal axis indicates time, ON is the ON signal of the control device 5 that turns on the right lamp 1R and the left lamp 1L, and OFF is the control device 5 that turns off the right lamp 1R and the left lamp 1L. This is an OFF signal. The thick solid lines in FIG. 6 and FIG. 7 indicate the on / off state (lighting rate) of the right lamp 1R and the left lamp 1L.

  That is, in the vehicle lamp control device 5 (central processing unit / CPU 9) in this embodiment, the right lamp 1R and the left lamp 1L are turned off by the ON signal of the control device 5, as shown in FIG. From the full lighting state, the lighting control is performed so that the right lamp 1R and the left lamp 1L are turned off at once from the full lighting state. This turn-off control is easily and reliably performed.

  Alternatively, in the vehicle lamp control device 5 (central processing unit / CPU 9) in this embodiment, the right lamp 1R and the left lamp 1L are turned off by the ON signal of the control device 5, as shown in FIG. From the full lighting state, and the right lamp 1R and the left lamp 1L are turned on for a predetermined time T (for example, 1 second. For example, the predetermined time T is limited. Control to turn off gradually. This turn-off control does not give the driver or pedestrian a sense of incongruity or discomfort.

  The vehicular lamp in this embodiment is configured as described above. Hereinafter, the operation of the vehicular lamp in this embodiment will be described.

  First, the ignition switch 6 is turned on. Then, in the control device 5, power is turned on from the power supply circuit 11 to the central processing unit / CPU 9, and the central processing unit / CPU 9 operates. That is, the central processing unit / CPU 9 sequentially processes the steps in the flowchart shown in FIG. Hereinafter, the procedure (operation) of the process of the central processing unit / CPU 9 will be described with reference to FIG.

  First, the operation of the central processing unit / CPU 9 is started. Then, the central processing unit / CPU 9 determines whether or not the hazard switch 4 is ON (ON or OFF) (hazard ON? S1). When the hazard switch 4 is ON, the central processing unit / CPU 9 returns to (S1). That is, the central processing unit / CPU 9 stops the first control function, the second control function, and the third control function of the control device 5 (central processing unit / CPU 9). Thereby, even if the right turn signal switch 2R and the left turn signal switch 2L are turned on or the steering wheel is rotated more than the set steering angle, the right lamp 1R and the left lamp 1L are not lit. .

  When the hazard switch 4 is OFF in the above (S1), the central processing unit / CPU 9 proceeds to the next step (step) and determines whether the right turn signal switch 2R and the left turn signal switch 2L are ON (ON). Or turn off) (blinker ON? S2). Here, when the right turn signal switch 2R and the left turn signal switch 2L are OFF, the central processing unit / CPU 9 proceeds to the next step and determines whether or not the vehicle speed of the vehicle C is equal to or lower than the first set vehicle speed ( Below the set vehicle speed? Here, when the vehicle speed of the vehicle C is not less than or equal to the first set vehicle speed, the central processing unit / CPU 9 determines that the vehicle C is traveling at the first set vehicle speed or more, and returns to (S1).

  In the above (S9), when the vehicle speed of the vehicle C is equal to or lower than the first set vehicle speed, the central processing unit / CPU 9 determines that the vehicle C is traveling below the first set vehicle speed, and proceeds to the next step. Then, it is determined whether or not the steering angle of the steering wheel is greater than or equal to the set rudder angle (greater than or equal to the set rudder angle? S10). When the steering angle of the steering wheel is equal to or larger than the set steering angle, the central processing unit / CPU 9 outputs a lighting signal to the driver circuit 10R for the right lamp and the driver circuit 10L for the left lamp. The driver circuit 10R for the right lamp and the driver circuit 10L for the left lamp turn on the right lamp 1R and the left lamp 1L in response to a lighting signal from the central processing unit CPU 9 (lighting S11), and then (S1 Return to).

  In the above (S11), for example, when the steering wheel is rotated to the right by a set steering angle or more, as shown in FIG. 3, the right lamp 1R is turned on and a predetermined arrangement is made from the right lamp 1R. The light of the light pattern PR is irradiated on the road surface on the right side of the vehicle C and the road surface on the right side of the vehicle C is illuminated. Alternatively, when the steering wheel is rotated to the left by a set steering angle or more, as shown in FIG. 4, the left lamp 1L is turned on, and light of a predetermined light distribution pattern PL is transmitted from the left lamp 1L to the vehicle. The road surface on the left side of C is irradiated and the road surface on the left side of the vehicle C is illuminated. Thus, in the vehicle lamp in this embodiment, when the vehicle C makes a turn, the driver rotates the steering wheel to the right side or the left side more than the set rudder angle so that the right lamp 1R, the left lamp 1L can be turned on to illuminate the road surface or the like on the side of the vehicle C.

  When the steering angle of the steering wheel is equal to or smaller than the set steering angle in (S10), the central processing unit / CPU 9 outputs a turn-off signal to the driver circuit 10R for the right lamp and the driver circuit 10L for the left lamp. The right lamp driver circuit 10R and the left lamp driver circuit 10L turn off the right lamp 1R and the left lamp 1L in response to a turn-off signal from the central processing unit CPU 9. As a result, the right lamp 1R and the left lamp 1L that are lit are turned off, or the right lamp 1R and the left lamp 1L that are lit are maintained off (turn off S12), and then ( Return to S1).

  In the above (S2), when the right turn signal switch 2R and the left turn signal switch 2L are ON, the central processing unit / CPU 9 proceeds to the next step and determines whether or not the vehicle speed of the vehicle C is equal to or lower than the first set vehicle speed. (S3)? Here, when the vehicle speed of the vehicle C is not less than or equal to the first set vehicle speed, the central processing unit / CPU 9 determines that the vehicle C is traveling at the first set vehicle speed or more, and returns to (S1). By this (S3) and the above (S9), the vehicular lamp according to this embodiment has the right turn signal switch 2R on the right side to change the lane when the vehicle C is traveling at the first set vehicle speed or higher. Even if the turn signal switch 2L is turned on, and the steering wheel is rotated to the right and left by more than the set steering angle, the right lamp 1R and the left lamp 1L are not lit.

  In the above (S3), when the vehicle speed of the vehicle C is equal to or lower than the first set vehicle speed, the central processing unit / CPU 9 determines that the vehicle C is traveling below the first set vehicle speed, and displays the lighting signal on the right side. The lamp driver circuit 10R and the left lamp driver circuit 10L are output. The right lamp driver circuit 10R and the left lamp driver circuit 10L turn on the right lamp 1R and the left lamp 1L in response to a lighting signal from the central processing unit CPU 9 (lighting S4). For example, when the right turn signal switch 2R is ON, as shown in FIG. 3, the right lamp 1R is turned on, and light of a predetermined light distribution pattern PR is emitted from the right lamp 1R to the right side of the vehicle C. The road surface or the like is irradiated, and the road surface on the right side of the vehicle C is illuminated. Alternatively, when the left turn signal switch 2L is ON, as shown in FIG. 4, the left lamp 1L is turned on, and light of a predetermined light distribution pattern PL is emitted from the left lamp 1L to the left side of the vehicle C. The road surface or the like is irradiated, and the road surface on the left side of the vehicle C is illuminated. As described above, in the vehicle lamp in this embodiment, when the vehicle C turns right or left at an intersection or a corner, the driver turns on the right turn signal switch 2R and the left turn signal switch 2L to turn on the right lamp. 1R, the left lamp 1L is lit, and the road surface on the side of the vehicle C can be illuminated.

  Next, when the right lamp 1R and the left lamp 1L are lit, the central processing unit / CPU 9 determines whether or not the vehicle C is in a state below the second set vehicle speed (low speed running state or stopped state). (Stop? S5) Here, when the vehicle C is not in a state equal to or lower than the second set vehicle speed, for example, when the vehicle C is in a medium-high speed traveling state, the central processing unit / CPU 9 returns from (S5) to (S1).

  In the above (S5), when the vehicle C is in a state equal to or lower than the second set vehicle speed, the central processing unit / CPU 9 proceeds to the next step, and the state in which the vehicle C is equal to or lower than the second set vehicle speed is equal to or longer than the set standby time. It is determined whether or not it has elapsed (elapsed or longer than the set standby time? S6). Here, when the state below the second set vehicle speed of the vehicle C has not passed the set standby time, the central processing unit / CPU 9 returns from (S6) to (S1).

  In the above (S6), when the state below the second set vehicle speed of the vehicle C has exceeded the set standby time, the central processing unit / CPU 9 sends a signal at the intersection or the like as shown in FIG. It is determined that the device is in a waiting state, and a turn-off signal is output to the driver circuit 10R for the right lamp and the driver circuit 10L for the left lamp. The right lamp driver circuit 10R and the left lamp driver circuit 10L turn off the right lamp 1R and the left lamp 1L in response to a turn-off signal from the central processing unit CPU 9. As a result, the right lamp 1R and the left lamp 1L, which are in the lit state, are extinguished (extinguishment S7). Thereby, the vehicular lamp in this embodiment can prevent the power consumption of the vehicle C, and there is no possibility of giving glare to pedestrians, drivers of other vehicles, and the like.

  Then, when the right lamp 1R and the left lamp 1L are turned off, the central processing unit / CPU 9 determines again whether or not the vehicle C is in a state equal to or lower than the second set vehicle speed (stop? S8). Here, when the vehicle C is in a state equal to or lower than the second set vehicle speed, the central processing unit / CPU 9 determines that the signal waiting state of the vehicle C continues and returns from (S8) to (S7). The right lamp 1R and the left lamp 1L are kept off.

  In the above (S8), when the vehicle C is not in a state equal to or lower than the second set vehicle speed, the central processing unit / CPU 9 determines that the vehicle C is turning right or left at an intersection from a signal waiting state, The process returns from (S8) to (S1). Here, when the hazard switch 4 is OFF, the right turn signal switch 2R and the left turn signal switch 2L are ON, and the vehicle speed of the vehicle C is equal to or lower than the first set vehicle speed, the central processing unit / CPU 9 Through (S1), (S2), and (S3), in (S4), the right lamp 1R and the left lamp 1L that are turned off are turned on. For example, as shown by an arrow R in FIG. 5, when the vehicle C makes a right turn at an intersection or the like, as shown in FIG. 3, the right lamp 1R is lit and the turning direction when the vehicle C makes a right turn The road surface ahead is illuminated. Further, as shown by an arrow L in FIG. 5, when the vehicle C makes a left turn at an intersection or the like, as shown in FIG. 4, the left lamp 1L is turned on, and the turning direction when the vehicle C makes a left turn The road surface ahead is illuminated. Thus, the vehicular lamp in this embodiment can illuminate the road surface on the side of the vehicle C and the like when the vehicle C turns right or left at an intersection or a corner.

  The vehicular lamp in this embodiment is configured and operated as described above. Hereinafter, the effects of the vehicular lamp in this embodiment will be described.

  In the vehicle lamp in this embodiment, as is apparent from the configuration and operation as described above, when the vehicle C is in a standby state such as waiting for a signal at an intersection or the like, and a state equal to or lower than the second set vehicle speed has elapsed for a set standby time or longer. Then, the right lamp 1R and the left lamp 1L in the lighting state of the control device 5 are turned off. For this reason, the vehicular lamp in this embodiment can prevent the power consumption of the vehicle C and achieve an effect that there is no possibility of giving glare to a pedestrian or a driver of another vehicle. Can do.

  Further, in the vehicle lamp in this embodiment, when the vehicle C is released from the standby state such as waiting for a signal and starts running, and the state below the second set vehicle speed is released, the control device 5 is in the off state. The right lamp 1R and the left lamp 1L are turned on. For this reason, the vehicular lamp in this embodiment can illuminate the road surface on the side of the vehicle C and the like when the vehicle C turns right or left at an intersection or a corner.

  Further, in the vehicle lamp in this embodiment, when the vehicle C makes a right turn or a left turn at an intersection or a corner, if the right turn signal switch 2R and the left turn signal switch 2L are turned ON, the control device 5 is turned off. The lamp 1R and the left lamp 1L are turned on. For this reason, the vehicular lamp in this embodiment can illuminate the road surface on the side of the vehicle C and the like when the vehicle C turns right or left at an intersection or a corner.

  Furthermore, the vehicular lamp in this embodiment has a right lamp 1R in which the control device 5 is turned off when the steering wheel is rotated more than a predetermined rudder angle to the right side and the left side when the vehicle C makes a turn. The left lamp 1L is turned on. For this reason, the vehicular lamp in this embodiment can illuminate the road surface on the side of the vehicle C when the vehicle C is curved.

  Furthermore, in the vehicle lamp in this embodiment, when the vehicle C is traveling at the first set high speed vehicle speed or higher, the right turn signal switch 2R and the left turn signal switch 2L are turned ON to change the lane. In addition, even when the steering wheel is rotated to the right and left by a predetermined steering angle or more, the right lamp 1R and the left lamp 1L are not lit. As a result, the vehicular lamp in this embodiment is not bothered by lighting of the right lamp 1R and the left lamp 1L while the vehicle C is traveling at the first set high speed vehicle speed or higher.

  In particular, when the hazard switch 4 is ON, the vehicular lamp in this embodiment uses the auxiliary control function of the control device 5 to perform the first control function and the second control function of the control device 5 (central processing unit / CPU 9). Since the function is stopped, the right lamp 1R and the left lamp 1L are not lit even if the right turn signal switch 2R and the left turn signal switch 2L are turned on. As a result, the vehicular lamp in this embodiment has all turn signal lamps blinking simultaneously when the hazard switch 4 is ON, and the right lamp 1R when the right winker switch 2R and left winker switch 2L are ON. The lighting of the left lamp 1L can be controlled separately and accurately without being confused.

  In addition, since the vehicle lamp in this embodiment can perform the extinguishing control (dimming extinguishing control) in which the right lamp 1R and the left lamp 1L are gradually turned off over a predetermined time T from the full lighting state. Do not give the driver or pedestrian a sense of incongruity or discomfort.

  Note that the right lamp 1R and the left lamp 1L in the above-described embodiment may be a fixed type that does not interlock with steering of the steering wheel, or may be a rotary type that rotates in conjunction with steering of the steering wheel.

1 is a configuration block diagram showing an embodiment of a vehicular lamp according to the present invention. Similarly, it is a flowchart which shows the effect | action (procedure of process processing) of a control apparatus (central processing unit and CPU). Similarly, it is explanatory drawing seen from the plane which shows the lighting state of the right lamp | ramp. Similarly, it is explanatory drawing seen from the plane which shows the lighting state of the left lamp | ramp. Similarly, it is explanatory drawing seen from the plane which shows the vehicle waiting for a signal. Similarly, it is explanatory drawing which shows the light extinction control from which a lamp | ramp turns into a light extinction state at a stretch from a full lighting state. Similarly, it is explanatory drawing which shows the light extinction control from which a lamp | ramp becomes a light extinction state gradually over predetermined time from a full lighting state.

Explanation of symbols

1L Right lamp 1L Left lamp 2L Right turn signal switch 2L Left turn signal switch 3 Vehicle speed sensor 4 Hazard switch 5 Controller / computer 6 Ignition switch 7 Battery 8 Interface circuit 9 Central processing unit / CPU
10R Driver circuit for right lamp 10L Driver circuit for left lamp 11 Power supply circuit 12 Steering angle sensor C Vehicle PR Predetermined light distribution pattern emitted from right lamp PL Predetermined light distribution pattern emitted from left lamp

Claims (3)

In the vehicular lamp that illuminates the road surface on the side of the vehicle,
A lamp that emits light to the side of the vehicle, etc.
Turn signal switch,
A vehicle speed sensor,
A steering angle sensor;
A control device having a first function, a second function, and a third function;
With
The first control function of the control device is a control function for turning on and off the lamp based on an ON signal OFF signal from the turn signal switch and a first set vehicle speed signal from the vehicle speed sensor,
The second control function of the control device is a control function for turning on and off the lamp based on a first set vehicle speed signal from the vehicle speed sensor and a set steering angle signal from the steering angle sensor,
The third control function of the control device is to turn off the lamp that is in the lit state when a state equal to or lower than the second set vehicle speed, which is lower than the first set vehicle speed, exceeds a set standby time, and then the second set vehicle speed. It is a control function to turn on the lamp in the off state when the following state is released,
A vehicular lamp characterized by the above. Has a hazard switch,
The said control apparatus has an auxiliary control function which stops the said 1st control function, the said 2nd control function, and the said 3rd control function based on the ON signal from a hazard switch. The vehicle lamp as described in 2.   3. The vehicular lamp according to claim 1, wherein the control device has a light-off control function in which the lamp is gradually turned off over a predetermined time from a light-on state.

Images