JP2011245934A - Device for indicating driving intention - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for indicating drive intention which is excellent in convenience and prevents an increase in manufacturing cost.SOLUTION: The device for indicating drive intention includes: an antenna 13 protruding upward from a roof panel 12 of a vehicle 10; light-emitting elements 31, 32, 33 mounted to the antenna 13 and emitting light in a predicted direction; and an operation detector for detecting a drive operation of the vehicle 10 by a driver. In the device for indicating drive intention, the light-emitting elements 31, 32, 33 emit light based on the detected result by the operation detector.

Description

  The present invention relates to a driving intention display device.

  Conventionally, the vehicle has been provided with a blinker lamp and a brake lamp, and is configured to transmit the driving operation of the driver driving the host vehicle, such as a course changing operation such as turning left or right, or a brake operation, to the driver such as the following vehicle. Has been. There is also known a vehicle in which a high-mount stop lamp is disposed at a position higher than the brake lamp, for example, inside the rear window. In this high-mount stoplight, light is emitted toward the rear of the vehicle through the rear window by turning on in conjunction with the driver's braking operation. As a result, a driver's intention display of the brake operation can be transmitted to the driver of the following vehicle. In this case, since the high mount stop lamp is installed at a position higher than the brake lamp, the visibility from the following vehicle can be improved.

  Here, Patent Document 1 discloses a configuration in which a lighting unit is formed in each loop portion of a dual-loop antenna that is a reception antenna so that a reception antenna such as a television or radio and a high-mount stop lamp can be used in combination. Is described.

Japanese Utility Model Publication No. 6-48208

  By the way, recently, by using a high-mount stop lamp, regardless of the brake operation, etc., various driving operations (traveling mode, etc.) are communicated to more vehicles (drivers) and people, improving convenience. There is a request to want.

  However, although the high-mount stop lamp described in Patent Document 1 is installed at a position higher than the brake lamp, there is a problem that the mounting position is still low in order to achieve the above-described function.

That is, when an attempt is made to check a high-mount stop lamp of a host vehicle from a plurality of rear vehicles separated from the host vehicle, light emitted from the high-mount stop lamp exists between the host vehicle and the rear vehicle. May be blocked by other vehicles.
In addition, since light is emitted backward in the high mount stop lamp, light emitted from the high mount stop lamp cannot be confirmed from, for example, a vehicle or the like that exists laterally with respect to the host vehicle.

  Furthermore, since the shape of the high-mount stop lamp is different for each vehicle type, there is a problem that the diversion property is low and the manufacturing cost increases.

  Therefore, the present invention provides a driving intention display device excellent in convenience while suppressing an increase in manufacturing cost.

  In order to solve the above-described problem, the invention described in claim 1 includes an antenna projecting upward from a vehicle body (for example, the vehicle body 11 in the embodiment) (for example, the antenna 13 in the embodiment), and the antenna. Operation detection for detecting a driving operation of a light emitting element (for example, the light emitting elements 31 to 33 in the embodiment) attached to the vehicle (for example, the light emitting elements 31 to 33 in the embodiment) and a driver (for example, the vehicle 10 in the embodiment) Means (for example, operation detection means 55 in the embodiment), wherein the light emitting element emits light based on a detection result of the operation detection means.

  In the invention described in claim 2, the light emitting element is interlocked with the turn signal lamp when the operation detecting means detects the operation of the turn signal lamp of the vehicle (for example, turn signal lamps 14R and 14L in the embodiment). The first light-emitting element that emits the first color (for example, the first light-emitting element 31 in the embodiment) and the operation detection unit operate the brake lamp (for example, the brake lamp 15 in the embodiment) of the vehicle. And a second light emitting element that emits a second color in conjunction with the brake lamp when detected (for example, the second light emitting element 32 in the embodiment).

  In the invention described in claim 3, the vehicle includes a travel mode control unit capable of switching between a normal travel mode and an eco travel mode in which the fuel consumption rate is controlled to be lower than that in the normal travel mode. The light emitting element includes a third light emitting element that emits a third color (for example, the third light emitting element 33 in the embodiment) when the operation detecting unit detects that the vehicle is in the eco-driving mode. It is characterized by that.

  According to a fourth aspect of the present invention, a planar portion (for example, the planar portion 25 in the embodiment) extending along a direction intersecting the left-right direction of the vehicle is formed on both sides of the vehicle in the left-right direction of the vehicle. The light emitting elements are respectively mounted on the plane portion, and when the operation detecting means detects the operation of the winker lamp on one side of the pair of winker lamps provided on both sides in the left-right direction of the vehicle, The light emitting element attached to the flat portion on the other side emits light in conjunction with the blinker lamp on one side.

  The invention described in claim 5 includes a periphery monitoring device (for example, the periphery monitoring device 41 in the embodiment) that monitors the periphery of the vehicle body, and the light emitting element emits light according to the periphery of the vehicle body. It is characterized by.

According to the first aspect of the present invention, various driving operations of the vehicle can be transmitted to surrounding vehicles (drivers) and people by causing the light emitting element to emit light based on the detection result by the operation detecting means. Convenience can be improved.
Moreover, since the antenna is generally installed at a relatively high position in the vehicle body (for example, on the roof panel), the light emitting element can be arranged at a relatively high position in the vehicle body by attaching the light emitting element to the antenna. Thereby, the visibility of a light emitting element can be improved compared with the case where the high mount stop lamp is installed inside the rear window as in the past. Therefore, even when the lighting state of the brake lamp or the like of the vehicle cannot be visually recognized, the driving operation of the vehicle can be confirmed based on the light emitting state of the light emitting element.
Furthermore, since the driving intention display device is configured using the existing antenna, it is possible to reduce the component cost and the design cost compared to newly adding or designing the component. In addition, driving intention display devices can be shared among vehicle types that share an antenna, so that the applicability is high. Thereby, while suppressing the increase in manufacturing cost, the driving intention display device excellent in convenience can be provided.

  According to the second aspect of the present invention, since the driving operation such as the blinker operation and the brake operation can be distinguished by the color of the light emitting element, the driving operation of the own vehicle can be accurately transmitted to surrounding vehicles.

By the way, when the vehicle travels in the eco travel mode, the vehicle is often operated at a low speed or a low acceleration compared to the normal travel mode. In such a case, the driver of the succeeding vehicle running behind the host vehicle is asked whether the cause of the low-speed driving or low-acceleration driving of the host vehicle is simply low-speed driving or low-acceleration driving, Since it cannot be determined whether the vehicle is driving at a low acceleration, the eco-driving of the host vehicle causes stress on the driver of the following vehicle.
On the other hand, according to the invention described in claim 3, since the intention of eco-driving can be displayed for the following vehicle traveling behind the host vehicle, the stress applied to the driver of the following vehicle can be eliminated. . In addition, by traveling at the same pace as that of the host vehicle, the following vehicle can also travel ecologically, which is also an advertisement for promoting ecological traveling.

By the way, in the conventional high-mount stop lamp, since light is irradiated backward, for example, at an intersection or the like, a vehicle entering the intersection from a traveling road that intersects the traveling road on which the host vehicle is traveling The driving operation of the own vehicle cannot be transmitted to (hereinafter referred to as a crossing vehicle). For example, when the host vehicle turns right at the intersection, the host vehicle enters the intersection with the blinker lamp on the right blinking, but the intersection that enters the intersection from the opposite side (left side) with respect to the turning direction of the host vehicle. The vehicle cannot see the blinking blinker lamp. Therefore, the driver of the crossing vehicle cannot determine whether the own vehicle goes straight through the intersection or turns.
On the other hand, according to the invention described in claim 4, when the crossing vehicle approaches from the direction opposite to the direction in which the host vehicle bends, the first light emitting element in the direction opposite to the winker operation is caused to emit light. Thereby, even when the blinker lamp cannot be visually recognized from the intersecting vehicle, the intention of driving the host vehicle can be transmitted to the intersecting vehicle based on the light emitting state of the first light emitting element. Therefore, it is possible to further improve convenience and the like.

  According to the invention described in claim 5, the light emitting element is caused to emit light according to the surrounding situation of the vehicle body, so that the light emitting element is not caused to emit light when there is no vehicle (driver) or person around the host vehicle. Can be set as follows. Thereby, unnecessary intention display can be prevented and power saving can be achieved. As a result, the fuel consumption rate of the vehicle (in the case of an internal combustion engine) and the electricity consumption rate (in the case of an electric vehicle or the like) can be improved.

It is the fragmentary perspective view which looked at the vehicle from diagonally backward. It is a partial side view of a vehicle. It is a block diagram which shows a driving intention display apparatus etc. It is explanatory drawing which shows the own vehicle and subsequent vehicle at the time of eco-driving. It is explanatory drawing which shows the state which the own vehicle has parked in the parking lot. It is explanatory drawing which shows the time of the intersection approach of the own vehicle. It is a flowchart for demonstrating operation | movement of the driving intention display apparatus at the time of an intersection approach. It is explanatory drawing which shows the state in which the several vehicle is running in parallel. It is a flowchart for demonstrating operation | movement of the driving intention display apparatus at the time of the brake operation of the own vehicle. It is a partial side view of a vehicle, and is a figure showing other composition of a driving intention display device.

Next, embodiments of the present invention will be described with reference to the drawings. In this embodiment, a case where the driving intention display device of the present invention is mounted on a four-wheel vehicle will be described as an example.
FIG. 1 is a partial perspective view of the vehicle as viewed obliquely from the rear, and FIG. 2 is a partial side view of the vehicle. Note that the directions such as front, rear, left and right in the following description are the same as those in the vehicle unless otherwise specified.
As shown in FIGS. 1 and 2, a vehicle 10 according to the present embodiment (hereinafter also referred to as a host vehicle 10) is a rear end portion of a roof panel 12 of a vehicle body 11, and a television or radio is provided at the center in the left-right direction. The receiving antenna 13 is installed.

  It should be noted that turn signal lamps (right turn signal lamp 14R and left turn signal lamp 14L) are arranged on both the left and right sides of the front and rear of the vehicle body 11 (only the rear turn signal lamps 14R and 14L are shown in the figure). . The turn signal lamps 14R and 14L turn a turn signal lamp (for example, orange) in a turning direction by a driver's turn signal operation when making a right turn or a left turn. This is to inform the direction of the turn (traveling direction).

  The blinker lamps 14R and 14L also function as hazard lamps for displaying that the host vehicle 10 is a traffic obstacle (hazard), being parked, and the like. In that case, both turn signal lamps 14R and 14L are flashing. The vehicle 10 of this embodiment has a keyless entry function, and when the keyless entry is operated, the operation result (for example, the open / close state of the door lock of the vehicle) is confirmed at a position away from the vehicle 10. As an answer back function for this purpose, the hazard lamp blinks.

  Further, brake lamps 15 are arranged on both the left and right sides of the rear portion of the vehicle body 11 so as to be adjacent to the blinker lamps 14R and 14L. The brake lamp 15 is used to transmit the brake operation of the vehicle 10 to the following vehicle by turning on in conjunction with the driver's brake operation.

  The antenna 13 described above is a so-called shark fin antenna, and has a substantially triangular pyramid-shaped hood portion 21 protruding upward from the roof panel 12 and an antenna element (not shown) built in the hood portion 21. ).

The hood portion 21 constitutes the appearance of the antenna 13 and is a hollow member in which a pair of side surface portions 22R and 22L, an upper edge portion 23, and a rear surface portion 24 are integrally formed.
Each of the side surfaces 22R and 22L is a member formed in a substantially triangular shape in a side view that increases in height from the front side to the rear side, and an inclined portion 26 that extends obliquely upward toward the vehicle width direction central portion, And a flat surface portion 25 extending upward from the upper end of the inclined portion 26. As for each side part 22R, 22L, the lower end surface of the inclination part 26 is being fixed to the roof panel 12. As shown in FIG. Moreover, the plane part 25 is extended along the direction where the surface direction is orthogonal to the left-right direction.

The upper edge portion 23 is formed so as to follow the oblique sides (upper end portions) of the side surface portions 22R and 22L so as to connect the upper end portions of the flat surface portion 25 in the pair of side surface portions 22R and 22L. It extends diagonally upward.
The rear surface portion 24 is a substantially triangular member extending along a direction in which the surface direction intersects the front-rear direction. And as for the rear surface part 24, while the lower end surface is being fixed to the roof panel 12, both slopes are connected with the rear edge part of side part 22R, 22L.

  The antenna element (not shown) receives various broadcast waves such as radio broadcast waves and television broadcast waves, and is connected to a coaxial line or the like drawn from the vehicle body 11 side via a connector (not shown). .

Here, the peripheral surface (the side portions 22R and 22L, the upper edge portion 23, and the rear surface portion 24) of the hood portion 21 is composed of LEDs or the like that are electrically connected to a harness (not shown) drawn from the vehicle body 11 side. A plurality of light emitting elements (a first light emitting element 31, a second light emitting element 32, and a third light emitting element 33) are arranged.
The first light emitting element 31 is formed of an LED that emits light such as orange or light yellow, for example, and is on the front side of the hood portion 21, specifically on the front side of the flat surface portion 25 and the front side of the upper edge portion 23 in the side surface portions 22R and 22L. It is arranged over. That is, among the first light emitting elements 31, the first light emitting element 31 disposed on the right side surface portion 22R emits light mainly in the right direction, while the first light emitting element 31 disposed on the left side surface portion 22L. The light emitting element 31 is configured to emit light mainly in the left direction. Further, the first light emitting element 31 disposed on the upper edge portion 23 is configured to emit light mainly obliquely forward.

  And the 1st light emitting element 31 is comprised so that it may blink in response to operation | movement of the blinker lamps 14R and 14L mentioned above. Specifically, the first light emitting element 31 has a side surface (on the side opposite to the blinker lamp 14R) when one of the pair of blinker lamps 14R and 14L blinks (for example, the right blinker lamp 14R). The first light emitting element 31 disposed on the left side surface portion 22L) blinks. When the blinker lamps 14R and 14L are caused to function as hazard lamps, all the first light emitting elements 31 including the first light emitting elements 31 on the upper edge portion 23 blink. These specific operations will be described later.

The second light emitting element 32 is made of an LED that emits light such as green light, and is disposed over the rear side (top side) of the upper edge portion 23. That is, the second light emitting element 32 is configured to emit light mainly upward. The 2nd light emitting element 32 is comprised so that it may light or blink based on the driving mode of the vehicle 10 mentioned later.
The third light emitting element 33 is made of an LED that emits red light, for example, and is arranged over almost the entire area of the rear surface portion 24. That is, the third light emitting element 33 is configured to emit light mainly toward the rear. The third light emitting element 33 is configured to light in conjunction with the driver's brake operation described above.

Next, the vehicle of this embodiment is demonstrated using a block diagram. FIG. 3 is a block diagram showing a driving intention display device and the like.
As illustrated in FIG. 3, the vehicle 10 according to the present embodiment includes the above-described light emitting elements 31 to 33, a periphery monitoring device 41, and an ECU 51 that comprehensively controls the operation of the vehicle 10.
The surroundings monitoring device 41 includes a radar, a camera, and the like, and detects the surroundings of the host vehicle 10. For example, when entering an intersection, the presence or absence of an intersection vehicle entering the intersection from a traveling road intersecting the traveling road on which the host vehicle 10 travels is detected, or a plurality of vehicle groups travel in cascade during a traffic jam. When the vehicle is running, the presence or absence of a vehicle traveling behind the host vehicle 10 is confirmed.

The ECU 51 includes a surrounding state determination unit 52, a travel mode control unit 53, a light emission control unit 54, and an operation detection unit 55.
The surrounding situation determination unit 52 determines in which direction the vehicle is present with respect to the host vehicle 10 based on the detection result by the surrounding monitoring device 41 described above.

  The travel mode control unit 53 is configured to be able to set the travel mode of the vehicle 10. Specifically, in this embodiment, in order to suppress the fuel consumption rate as compared with the normal travel mode, two types of travel modes can be set: an eco travel mode that performs idle stop, deceleration fuel cut, and the like. It is configured. The travel mode can be set by manual setting based on switch operation or the like, or automatic setting based on accelerator opening, brake operation, or the like.

The operation detection unit 55 detects a driving operation of the vehicle 10 by the driver (for example, a driving mode state, a winker operation by the driver, a brake operation, a door lock opening / closing operation by keyless entry, etc.).
The light emission control unit 54 performs operation control of the above-described light emitting elements 31 to 33 based on the detection result by the operation detection unit 55. The above-described antenna 13, the light emitting elements 31 to 33, the periphery monitoring device 41, the surrounding state determination unit 52, the light emission control unit 54, the operation detection unit 55, and the like constitute the driving intention display device of the present embodiment. .

(Function)
Next, an operation method of the above-described driving intention display device when various driving operations of the vehicle 10 are performed will be described.
(Eco driving)
First, the operation of the drive intention display device when the host vehicle is in the eco travel mode will be described. FIG. 4 is an explanatory view showing the host vehicle and the following vehicle at the time of eco-driving. FIG. 4A shows a case where the driving intention display device of the present embodiment is mounted on the host vehicle, and FIG. Conventional).
By the way, as shown in FIG.4 (b), when drive | working in the eco-driving mode mentioned above, compared with normal driving | running | working mode, it becomes a low speed driving | operation and a low acceleration driving | operation in many cases. In such a case, the driver of the succeeding vehicle 101 running behind the host vehicle 10 determines whether the cause of the low speed driving or the low acceleration driving of the host vehicle 10 is a simple low speed driving or a low acceleration driving or depends on the eco driving mode. Since it cannot be determined whether the driving is at a low speed or a low acceleration, the eco-driving of the host vehicle 10 causes stress on the driver of the succeeding vehicle 101.

Therefore, as shown in FIG. 4A, in the driving intention display device of this embodiment, when the traveling mode of the host vehicle 10 is first set to the eco traveling mode by the traveling mode control unit 53, the operation detecting means 55 is It is detected that the host vehicle 10 is traveling in the eco travel mode. Then, the light emission control unit 54 causes the second light emitting element 32 to emit light based on the detection result by the operation detection unit 55. Thereby, for example, green light G is emitted from the roof panel 12 in a specific direction (for example, upward).
The driver of the following vehicle 101 is in the middle of low speed driving or low acceleration driving in the eco driving mode because the second light emitting element 32 of the own vehicle 10 traveling ahead emits light. Can be judged.

  According to this configuration, since the intention of eco-driving can be displayed for the subsequent vehicle 101, the stress applied to the driver of the subsequent vehicle 101 can be eliminated. In addition, by traveling at the same pace as the host vehicle 10, the subsequent vehicle 101 can also travel ecologically, which is also an advertisement for promoting ecological traveling.

(When the parking lot is stopped)
Next, the operation of the driving intention display device when the parking lot is stopped will be described. FIG. 5 is an explanatory view showing a state in which the host vehicle is parked in a parking lot. FIG. 5A shows a case where the driving intention display device of the present embodiment is mounted on the host vehicle, and FIG. (Conventional) is shown.
By the way, as shown in FIG.5 (b), when many vehicles 102 are parked, for example in a large parking lot etc., the driver | operator or passenger | crew (for example, driving | operation of the own vehicle 10 in the place away from the own vehicle 10). When the operator D) operates the keyless entry, the light L emitted from the blinker lamps 14R and 14L (see FIG. 1) is blocked by the vehicle (for example, the vehicle 102a) in front of the host vehicle 10 when viewed from the driver D. May be. As a result, the driver D may not recognize the operation result of the keyless entry.

  Therefore, in the present embodiment, as shown in FIG. 5A, when the driver D operates the keyless entry at a place away from the host vehicle 10, both turn signal lamps 14 </ b> R and 14 </ b> L ( The hazard lamp flashes. At the same time, it is determined by the operation detection means 55 of the driving intention display device that the keyless entry operation has been performed, and the light emission control unit 54 causes all the first light emitting elements 31 to emit light in conjunction with the blinker lamps 14R and 14L. As a result, for example, orange light O is emitted from the roof panel 12 in a specific direction (for example, laterally and obliquely upward).

  According to this configuration, the visibility of the answer back can be improved by causing the first light emitting element 31 to emit light in conjunction with the blinker lamps 14R and 14L during the answer back of the keyless entry. That is, even if the blinker lamps 14 </ b> R and 14 </ b> L are blind spots as viewed from the driver D, the operation result of the keyless entry can be determined based on the first light emitting element 31. Thereby, even when the parking location of the host vehicle 10 is forgotten or when the keyless entry is operated from a distance, the operation result of the keyless entry can be determined promptly, thereby improving convenience. it can.

(When entering the intersection)
Next, a description will be given of when the vehicle turns right or left at the intersection. 6A and 6B are explanatory views showing when the own vehicle enters the intersection. FIG. 6A shows a case where the driving intention display device of the present embodiment is mounted on the own vehicle, and FIG. ing. FIG. 7 is a flowchart of the driving intention display device when entering the intersection. FIG. 6 shows a state in which the crossing vehicle 103 enters the intersection from the right side of the host vehicle 10 when the host vehicle 10 turns left at the intersection.

  By the way, as shown in FIG. 6B, for example, when the host vehicle 10 makes a left turn at an intersection, the left turn signal lamp 14L blinks and enters the intersection. The crossing vehicle 103 entering the vehicle cannot confirm blinking of the blinker lamp 14L. Therefore, the driver of the intersection vehicle 103 cannot determine whether the host vehicle 10 goes straight through the intersection or turns left.

  Therefore, in the present embodiment, as shown in FIGS. 6A and 7, first, in step S <b> 11, the presence or absence of the crossing vehicle 103 is confirmed by the periphery monitoring device 41.

Next, in step S12, the operation detection means 55 determines whether or not there is a winker operation.
If the determination result in step S12 is “NO”, it is determined that the blinker lamps 14R and 14L are not operated, and the flow ends.
On the other hand, when the determination result in step S12 is “YES”, it is determined that the blinker lamps 14R and 14L are operated, and the process proceeds to step S13.

Next, in step S13, it is determined whether the winker operation is in the left-right direction.
If the determination result in step S13 is “right”, it is determined that the host vehicle 10 is scheduled to turn right, and the process proceeds to step S14.

Next, in step S <b> 14, the surrounding situation determination unit 52 determines whether or not the crossing vehicle 103 is approaching from the left side (opposite to the turning direction) with respect to the host vehicle 10 based on the detection result by the surrounding monitoring device 41. to decide.
If the determination result in step S14 is “NO”, it is determined that there is no approach of the crossing vehicle 103 from the left side with respect to the host vehicle 10, and the flow is ended.
On the other hand, if the determination result in step S14 is “YES”, it is determined that the crossing vehicle 103 is approaching the host vehicle 10 from the left side, and the process proceeds to step S16.

  In step S <b> 16, the light emission control unit 54 includes the first light emitting element 31 disposed on the side opposite to the winker operation (bending direction) disposed on the right side surface portion 22 </ b> R of the hood portion 21. ).

  On the other hand, when the determination result in step S13 is “left” (the state in FIG. 6A), it is determined that the host vehicle 10 is scheduled to turn left, and the process proceeds to step S15.

Next, in step S <b> 15, the surrounding situation determination unit 52 determines whether or not the crossing vehicle 103 is approaching from the right side (opposite to the turning direction) with respect to the host vehicle 10 based on the detection result by the surrounding monitoring device 41. to decide.
If the determination result in step S15 is “NO”, it is determined that there is no approach of the crossing vehicle 103 from the right side with respect to the own vehicle 10, and the flow ends.
On the other hand, if the determination result in step S15 is “YES”, it is determined that the crossing vehicle 103 from the right side is approaching the host vehicle 10, and the process proceeds to step S17.

  In step S17, the light emission control unit 54 emits light from the first light emitting element 31 (the first light emitting element 31 disposed on the side opposite to the winker operation) disposed on the left side surface portion 22L of the hood portion 21 ( (See the light O in FIG. 6A).

Next, in step S18, the operation detection means 55 determines whether or not the winker operation is stopped.
If the determination result in step S18 is “NO”, it is determined that the winker operation has not been stopped (for example, the host vehicle 10 is still changing course), the process returns to step S13, and steps S13 to S18 are performed. Repeat the flow up to.
On the other hand, when the determination result in step S18 is “YES”, it is determined that the winker operation has been stopped (for example, when the course of the host vehicle 10 has been changed), the process proceeds to step S19, and the first light emitting element 31 is reached. Stops flashing.
Thus, the flow when entering the intersection is completed.

According to this configuration, when the intersection vehicle 103 approaches from the direction opposite to the direction in which the host vehicle 10 bends when approaching the intersection, the first light emitting element 31 on the side opposite to the winker operation is caused to emit light. Even when the light L of the blinker lamps 14R and 14L cannot be visually recognized from the vehicle 103, the intention to drive the host vehicle 10 (change of course) can be transmitted to the crossing vehicle 103. Thereby, the further improvement of convenience etc. can be aimed at.
In the present embodiment, since the first light emitting element 31 emits light according to the surrounding state of the host vehicle 10 detected by the surroundings monitoring device 41 (for example, the presence or absence of the intersecting vehicle 103), when the intersecting vehicle 103 does not exist. For example, the first light emitting element 31 can be set not to emit light. Thereby, unnecessary intention display can be prevented and power saving can be achieved. As a result, the fuel consumption rate (in the case of an internal combustion engine) and the electricity consumption rate (in the case of an electric vehicle, etc.) of the host vehicle 10 can be improved.

(Brake operation)
Next, the operation of the driving intention display device during the brake operation of the host vehicle will be described. FIG. 8 is an explanatory diagram showing a state in which a plurality of vehicles are running in cascade in a traffic jam or the like. FIG. 8A shows a case where the driving intention display device of the present embodiment is mounted on the own vehicle, and FIG. It shows the case where it is not (conventional). FIG. 9 is a flowchart of the driving intention display device at the time of brake operation of the host vehicle.
By the way, as shown in FIG. 8 (b), when a plurality of vehicles are traveling in tandem with the own vehicle 10 at the head side in a traffic jam or the like, a plurality of vehicles from the own vehicle 10 behind the plurality of vehicles. Only the vehicle in front of the rear vehicle 107 (hereinafter referred to as the other vehicle 107) can be confirmed from this vehicle (hereinafter referred to as the rear vehicle 106). For this reason, the rear vehicle 106 travels according to the brake lamp B of the other vehicle 107, but the traffic jam situation such as the traffic jam distance cannot be grasped only by the brake operation of the other vehicle 107. This causes stress on the driver of the rear vehicle 106.

  Therefore, in the present embodiment, as shown in FIGS. 8A and 9, first, in step S21, the surroundings monitoring device 41 confirms the presence or absence of a rear vehicle (for example, the other vehicle 107 or the rear vehicle 106). .

Next, in step S <b> 22, the surrounding situation determination unit 52 determines whether a vehicle (for example, another vehicle 107 or a rear vehicle 106) exists behind the host vehicle 10 based on the detection result of the surrounding monitoring device 41. .
If the determination result in step S22 is “NO”, it is determined that there is no vehicle behind the host vehicle 10, and the flow ends.
If the determination result in step S22 is “YES”, it is determined that there is a vehicle behind the host vehicle 10, and the process proceeds to step S23.

In step S23, the operation detection unit 55 determines whether or not the brake operation of the host vehicle 10 has been performed.
If the determination result in step S23 is “NO”, it is determined that the brake operation is not performed, and the flow ends.
On the other hand, if the determination result in step S23 is “YES”, it is determined that the brake operation has been performed, and the process proceeds to step S24.

  In step S24, the light emission control unit 54 causes the third light emitting element 33 to emit light in conjunction with the brake operation. Thereby, for example, red light R (see FIG. 8A) is emitted from the roof panel 12 in a specific direction (for example, rearward).

In step S25, the operation detection unit 55 determines whether or not the brake operation of the host vehicle 10 has been released.
If the determination result in step S25 is “NO”, it is determined that the brake operation has not been released, and the process returns to step S24. The third light emitting element 33 continues to emit light until the brake operation is released.
On the other hand, if the determination result in step S25 is “YES”, it is determined that the brake operation has been released, and the process proceeds to step S26. Then, it is determined that the brake operation has been released, and the light emission of the third light emitting element 33 is stopped.
As described above, the flow at the time of tandem traveling is completed.

According to this configuration, it is possible to confirm the brake operation of the host vehicle 10 in front of a plurality of vehicles from the rear vehicle 107. That is, even when the other vehicle 107 exists between the host vehicle 10 and the rear vehicle 106, even if the brake lamp 15 of the host vehicle 10 is a blind spot by the other vehicle 107, the third light emitting element 33. The brake operation of the host vehicle 10 can be determined based on the above. Therefore, the brake state of the host vehicle 10 can be confirmed from the rear vehicle 106, for example, when a plurality of vehicles are traveling in tandem, such as in a traffic jam. Thereby, since the traffic congestion situation can be confirmed based on the distance to the host vehicle 10 or the like, the stress applied to the driver of the rear vehicle 106 can be eliminated.
In the present embodiment, since the third light emitting element 33 emits light according to the surrounding situation of the host vehicle 10 detected by the surrounding monitoring device 41 (for example, the presence or absence of the other vehicle 107 or the rear vehicle 106), the host vehicle 10 The third light emitting element 33 can be set not to emit light when there is no vehicle behind the vehicle. Thereby, unnecessary intention display can be prevented and power saving can be achieved. As a result, the fuel consumption rate (in the case of an internal combustion engine) and the electricity consumption rate (in the case of an electric vehicle, etc.) of the host vehicle 10 can be improved.

As described above, in the present embodiment, the light emitting elements 31 to 33 that emit light according to the driving operation of the vehicle 10 are provided on the antenna 13 that protrudes upward from the roof panel 12.
According to this configuration, by causing the light emitting elements 31 to 33 to emit light based on the detection result by the operation detecting means 55, various driving operations of the host vehicle 10 by the driver are transmitted to surrounding vehicles (drivers) and people. Therefore, convenience and the like can be improved.
Moreover, since the antenna 13 is generally installed at a relatively high position (on the roof panel 12) in the vehicle 10, the light emitting elements 31 to 33 are attached to the antenna 13 to emit light at a relatively high position in the vehicle 10. Elements 31 to 33 can be arranged. Thereby, the visibility of the light emitting elements 31 to 33 can be improved as compared with a conventional case where a high-mount stop lamp is installed inside the rear window. Therefore, even when the lighting state of the brake lamp 15 and the blinker lamps 14R and 14L of the host vehicle 10 cannot be visually recognized, the driving operation of the vehicle 10 can be confirmed based on the light emitting state of the light emitting elements 31 to 33.

  Further, since the driving intention display device is configured using the existing antenna 13, the component cost and the design cost can be reduced as compared with the case where a new component is newly added or designed. Moreover, since the driving intention display device can be shared among the vehicle types in which the antenna 13 is shared, the applicability is high. Thereby, while suppressing the increase in manufacturing cost, the driving intention display device excellent in convenience can be provided.

  Moreover, in this embodiment, since the light emitting elements 31 to 33 having different colors are provided, driving operations such as a winker operation and a brake operation can be distinguished by the colors of the light emitting elements 31 to 33. As a result, the driving operation of the host vehicle 10 can be accurately transmitted to surrounding vehicles and the like.

  Furthermore, in the present embodiment, the light emitting elements 31 to 33 are caused to emit light according to the surrounding situation of the vehicle 10 based on the judgment of the surrounding situation judging unit 52, so that there is no vehicle (driver) or person around the host vehicle 10. In some cases, the light emitting elements 31 to 33 can be set not to emit light. Thereby, unnecessary intention display can be prevented and power saving can be achieved. As a result, the fuel consumption rate (in the case of an internal combustion engine) and the electricity consumption rate (in the case of an electric vehicle or the like) can be improved.

As mentioned above, although embodiment of this invention was explained in full detail with reference to drawings, the concrete structure is not restricted to this embodiment, The design change etc. of the range which does not deviate from the summary of this invention are included.
For example, in the above-described embodiment, the case where a shark fin antenna is used as the antenna 13 has been described. However, the present invention is not limited to this, and a pole antenna can also be used. Specifically, as shown in FIG. 10, the pole antenna 60 is rotatably supported on the roof panel 12 of the vehicle body 11 via a hinge portion 61. At the tip of the pole antenna 60, the first light emitting element 31 is disposed on both the left and right sides and the front side, the second light emitting element 32 is disposed on the front side, and the third light emitting element 33 is disposed on the rear side. Has been.
According to this structure, even if it is a case where a driving intention display apparatus is comprised using the pole antenna 60, there can exist an effect similar to embodiment mentioned above. Furthermore, since the pole antenna 60 is less expensive than the antenna 13 described above, the cost can be reduced. The driving intention display device can be configured using various antennas, not limited to the antenna 13 and the pole antenna 60 described above.

In the above-described embodiment, the case where the three-color light emitting elements 31 to 33 are used has been described. However, the present invention is not limited to this, and four or more color light-emitting elements may be used.
Further, the present invention can be applied to other driving operations regardless of the various driving operations (the blinker operation, the brake operation, etc.) described above.
Further, in the above-described embodiment, the case where the driving intention display device is applied to a four-wheel vehicle has been described. However, the present invention is not limited to this and can be applied to a two-wheel or three-wheel vehicle.

DESCRIPTION OF SYMBOLS 10 ... Vehicle 11 ... Car body 14R, 14L ... Blinker lamp 15 ... Brake lamp 25 ... Planar part 31 ... 1st light emitting element 32 ... 2nd light emitting element 33 ... 3rd light emitting element 41 ... Perimeter monitoring apparatus 55 ... Operation detection means

Claims (5)

An antenna projecting upward from the vehicle body;
A light emitting element that emits light toward a specific direction attached to the antenna;
Operation detecting means for detecting the driving operation of the vehicle by the driver, and
The light emitting element emits light based on a detection result of the operation detecting means. The light emitting element is
A first light emitting element that emits a first color in conjunction with the turn signal lamp when the operation detection means detects an operation of the turn signal lamp of the vehicle;
And a second light emitting element that emits a second color in conjunction with the brake lamp when the operation detecting means detects an operation of a brake lamp of the vehicle. The drive intention display device according to Item 1. The vehicle has a travel mode control unit capable of switching between a normal travel mode and an eco travel mode that travels while suppressing a fuel consumption rate than the normal travel mode,
The said light emitting element has a 3rd light emitting element which light-emits a 3rd color, when the said operation detection means detects that the said vehicle is the said eco-driving mode. Or the drive intention display apparatus of Claim 2. On both sides of the vehicle in the left-right direction of the vehicle, a plane portion extending along a direction intersecting the left-right direction of the vehicle is formed,
Each of the light emitting elements is mounted on the plane portion,
Of the pair of turn signal lamps provided on both sides in the left-right direction of the vehicle, when operation of the turn signal lamp on one side is detected by the operation detection means, the turn signal lamp on the other side is interlocked with the turn signal lamp on the other side. The driving intention display device according to any one of claims 1 to 3, wherein the light emitting element attached to the flat surface emits light. Comprising a periphery monitoring device for monitoring the periphery of the vehicle body;
The driving intention display device according to any one of claims 1 to 4, wherein the light emitting element emits light according to a situation around the vehicle body.

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