WO2013011588A1 - 車両用情報伝達装置 - Google Patents
車両用情報伝達装置 Download PDFInfo
- Publication number
- WO2013011588A1 WO2013011588A1 PCT/JP2011/066604 JP2011066604W WO2013011588A1 WO 2013011588 A1 WO2013011588 A1 WO 2013011588A1 JP 2011066604 W JP2011066604 W JP 2011066604W WO 2013011588 A1 WO2013011588 A1 WO 2013011588A1
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- WIPO (PCT)
- Prior art keywords
- light
- driver
- information
- vehicle
- stimulus
- Prior art date
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Images
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
- B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
- B60K35/29—Instruments characterised by the way in which information is handled, e.g. showing information on plural displays or prioritising information according to driving conditions
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/50—Context or environment of the image
- G06V20/59—Context or environment of the image inside of a vehicle, e.g. relating to seat occupancy, driver state or inner lighting conditions
- G06V20/597—Recognising the driver's state or behaviour, e.g. attention or drowsiness
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/16—Anti-collision systems
- G08G1/166—Anti-collision systems for active traffic, e.g. moving vehicles, pedestrians, bikes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
- B60K2360/18—Information management
- B60K2360/186—Displaying information according to relevancy
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
- B60K2360/20—Optical features of instruments
- B60K2360/33—Illumination features
- B60K2360/334—Projection means
Definitions
- the present invention relates to a vehicle information transmission device.
- Patent Document 1 discloses a plurality of light irradiating means for irradiating light on the front glass at an incident angle at which a reflected light beam from the front glass is directed to the face of the driver, and object information based on detected transmission information. For detecting the position of the vehicle in the driver's field of view, and selectively operating the light irradiating means in which the extension line of the reflected light by the windshield passes closest to the detected position.
- a technology for a driving support system is disclosed.
- An object of the present invention is to provide a vehicle information transmission device capable of appropriately transmitting information to a driver by light stimulation.
- the vehicle information transmission device transmits information to a driver by light stimulation, and is based on at least one of information on the driver after the transmission of the information, operation input, or behavior of the vehicle. And determining whether or not to change the mode of the stimulation.
- the mode of the stimulation is changed when the driver determines that the information is not considered.
- the mode of the stimulation is changed when at least one of the operation input after transmitting the information or the behavior of the vehicle is not based on the information.
- the stimulation mode it is preferable to change the stimulation mode when it is determined that the driver does not consider the information in the stimulation mode.
- the vehicle information transmission device when at least one of the operation input after transmitting the information or the behavior of the vehicle is not based on the information, it is determined that the information is not considered by the driver. It is preferable to do.
- a correspondence relationship between the aspect of the stimulus and whether or not the information transmitted by the stimulus of the aspect is considered by the driver is stored, and the information is transmitted by the driver based on the storage. It is preferable to determine whether or not there is a cause in which the above is not considered in the mode of the stimulation.
- the mode of stimulation includes the luminance of the light, the color of the light, the size of the light to be projected, the shape of the light to be projected, the cycle of the blinking of the light, and the luminance of the light. It is preferable that at least one of a change gradient or the timing of the stimulation is included.
- the vehicle information transmission device changes the mode of stimulation based on at least one of information related to the driver after transmitting information by stimulation with light, operation input, or behavior of the vehicle. To decide. Therefore, according to the vehicle information transmission device of the present invention, there is an effect that information can be appropriately transmitted to the driver.
- FIG. 1 is a block diagram illustrating an example of a configuration of a vehicle information transmission device according to an embodiment.
- FIG. 2 is a diagram illustrating an example of the configuration of the light source panel.
- FIG. 3 is a diagram illustrating another example of the configuration of the light source panel.
- FIG. 4 is a diagram illustrating another example of the configuration of the light source panel.
- FIG. 5 is a diagram illustrating an example of a mounting position of the light source panel in the vehicle.
- FIG. 6 is a diagram illustrating an example of eyepoint definition.
- FIG. 7 is a diagram illustrating another example of the mounting position of the light source panel in the vehicle.
- FIG. 8 is a diagram illustrating another example of the mounting position of the light source panel in the vehicle.
- FIG. 1 is a block diagram illustrating an example of a configuration of a vehicle information transmission device according to an embodiment.
- FIG. 2 is a diagram illustrating an example of the configuration of the light source panel.
- FIG. 3 is a diagram illustrating
- FIG. 9 is a diagram illustrating another example of the mounting position of the light source panel in the vehicle.
- FIG. 10 is a diagram illustrating an example of a display range of a virtual image when viewed from above the vehicle.
- FIG. 11 is a diagram illustrating an example of a method for adjusting the color and brightness of light from a light source.
- FIG. 12 is a diagram illustrating an example of a map that defines the relationship between the distance or angle and the color / luminance.
- FIG. 13 is a diagram illustrating an example of a map that defines the relationship between the vehicle body color and the constant color, the alert color, the warning color, and the luminance.
- FIG. 14 is a diagram illustrating a virtual image in a clear state.
- FIG. 14 is a diagram illustrating a virtual image in a clear state.
- FIG. 15 is a diagram illustrating a virtual image in a blurred state.
- FIG. 16 is a diagram illustrating another example of a virtual image in a clear state.
- FIG. 17 is a diagram illustrating another example of a blurred virtual image.
- FIG. 18 is a diagram illustrating a virtual image in a state where a portion seen by the driver is selectively blurred.
- FIG. 19 is a diagram illustrating a virtual image in a state where a portion in the curve direction is selectively blurred.
- FIG. 20 is a diagram illustrating a virtual image in a state where the position where the distance from the gazing point is short is blurred.
- FIG. 21 is a flowchart according to the control of the embodiment.
- FIG. 21 is a flowchart according to the control of the embodiment.
- FIG. 22 is a diagram illustrating an example of a map that defines the relationship between the position to be notified and the degree of danger, the irradiation position of light, and the irradiation area.
- FIG. 23 is a diagram illustrating an example of the relationship between the degree of danger and the amount of change per unit change in light color and brightness.
- FIG. 24 is a diagram illustrating an example of a situation where a warning is required.
- FIG. 25 is a diagram illustrating an example of a normal situation.
- FIG. 26 is a diagram illustrating an example of a scene in which a notification target appears from a normal situation and changes to a situation that requires a warning.
- FIG. 27 is an explanatory diagram of a virtual image when the vehicle is traveling on a straight road.
- FIG. 28 is an explanatory diagram of a virtual image when the vehicle is traveling on a road on a right curve.
- FIG. 29 is a diagram illustrating an example of a situation that requires attention to a preceding vehicle.
- FIG. 30 is a diagram illustrating an example of a situation where a warning is required for a preceding vehicle.
- FIG. 31 is an explanatory diagram of one method for determining whether or not support information is considered.
- FIG. 32 is a flowchart according to a first modification of the embodiment.
- FIG. 33 is a flowchart according to a second modification of the embodiment.
- FIG. 1 is a block diagram illustrating an example of a configuration of a vehicle information transmission device 1-1 according to the embodiment.
- the vehicle information transmission device 1-1 of this embodiment transmits information to the driver by light stimulation.
- the vehicle information transmission device 1-1 determines whether or not the driver is driving in consideration of the support information. If it is determined that the driver is not driving in consideration, the light stimulus presentation method is the cause. Determine whether. When it is determined that the reason why the support information is not considered is the method of applying the light stimulus, the vehicle information transmission device 1-1 changes the method of applying the light stimulus. Thereby, according to the vehicle information transmission apparatus 1-1 of the present embodiment, it is possible to appropriately transmit information to the driver by light stimulation.
- the vehicle information transmission device 1-1 confirms the driver's intention to continue the support when the support effect is not expected regardless of how the light stimulus is applied, and ends the support if the support is unnecessary. Therefore, according to the vehicle information transmission device 1-1 of the present embodiment, it is possible to reduce the annoyance by not providing support to the driver who does not need the light stimulus. That is, the vehicle information transmission apparatus 1-1 of the present embodiment can provide information to the driver who needs assistance by appropriate light stimulation according to how the driver feels.
- a vehicle information transmission device (vehicle information transmission system) 1-1 includes a plurality of light sources (LED: light-) mounted (arranged) in an array (a plurality of rows or a plurality of columns) on an instrument panel.
- LED light-
- the location or direction of dangerous objects eg, pedestrians, bicycles, automobiles, blind spots, etc.
- This is a device that notifies the driver (warning or warning).
- the mounting position of the light source is mainly described as an instrument panel.
- a meter panel may be used.
- the light source will be mainly described as a single color LED, for example, a full color LED or a bulb may be used.
- the light irradiation destination (virtual image display destination) will be mainly described as a front window glass.
- an A pillar, a side mirror, a meter panel, or an instrument panel may be used.
- the content to be notified to the driver is mainly described as a risk target (risk). For example, route guidance, incoming e-mail, driver's condition / physical condition (eg, waking up, sleeping, etc.), or own vehicle (For example, the state of eco-driving, etc.).
- the dangerous object detection means will be described as an objective sensor, for example, image recognition due to a camera, communication such as vehicle-to-vehicle communication or road-to-vehicle communication, or navigation information (for example, a map / Database, etc.).
- the position and direction for prompting the notification will be mainly described as left and right when viewed from the driver, but may be, for example, before and after when viewed from the driver.
- the display shape of a virtual image is mainly described as a linear shape (dot sequence), it may be a graphic such as an icon, a character, a symbol, or the like.
- the contents of the dangerous object may also be announced.
- the mode of notification (the mode of notification, the method of notification) is mainly described as light, but any mode that can be recognized by humans, such as sound (voice) or operation reaction force, may be used.
- the vehicle 1 includes a light source panel 10 having a plurality of light sources 10a and a mechanism for adjusting the light transparency of the light sources 10a (specifically, light brightness), an objective sensor 11, a driver sensor 12, and a vehicle speed sensor. 13, a vehicle information transmission device 1-1 including an ECU (electronic control unit) 14 including a risk calculation unit 14a, a lighting control unit 15, and a transmission control unit 16 is mounted.
- ECU electronic control unit
- the objective sensor 11 is used for objects such as pedestrians, bicycles, automobiles, blind spots (for example, the shadow of buildings, the other side of curves, the back of vehicles, etc.), and straight, left, and right curves. Information on road shapes, etc.).
- the driver sensor 12 detects the driver's gaze point or gaze direction.
- the vehicle speed sensor 13 detects the vehicle speed of the vehicle 1.
- the risk calculation unit 14a is configured to detect the danger around the vehicle 1 based on the vehicle exterior environment around the vehicle 1 detected by the objective sensor 11, the gaze point or gaze direction detected by the driver sensor 12, the vehicle speed detected by the vehicle speed sensor 13, and the like. Calculate (estimate) the degree of risk.
- FIG. 2 is a diagram illustrating an example of the configuration of the light source panel 10.
- reference numeral 10 b is a diffusion plate
- reference numeral 10 c is a shaft member
- reference numeral 10 d is a spring.
- a plurality of light sources 10a are arranged in an array of a plurality of rows or a plurality of columns so that light can be irradiated in the horizontal direction (left-right direction) and the vertical direction (height direction, vertical direction).
- red light is emitted to the row on the near side as viewed from the driver when the light source panel 10 is installed.
- a light source 10a is arranged, a light source 10a emitting yellow light is arranged in the middle row, and a light source 10a emitting green light is arranged in the back row.
- the light source panel 10 includes a diffusion plate 10b and a shaft member for adjusting the light transparency (light blur / light diffusibility) of the light source 10a with the position of the light source 10a in whole or in part. 10c and a plurality of springs 10d serving as a fail-safe for maintaining the distance between the light source 10a and the diffuser plate 10b in the maximum state at the time of failure are arranged.
- the light source panel 10 is a power device such as a motor that realizes three rotational movements (movement in the vertical direction, left-right direction, and twist direction) of the diffusion plate 10b electromagnetically or electrically (see FIG. (Not shown) is arranged.
- the diffusion plate 10b is a thin plate-like member made of a material such as polypropene or polycarbonate.
- the shaft member 10c is a rod-shaped member that serves as an axis for three rotational movements of the diffusion plate 10b.
- the position or number of the springs 10d may be any position or number that can maintain the distance between the light source 10a and the diffuser plate 10b at the maximum in the event of a failure. Further, in order to expand the light to a wider range, a Fresnel lens may be inserted above or below the diffusion plate 10b.
- FIG. 3 is a diagram illustrating another example of the configuration of the light source panel 10.
- reference numeral 10e denotes a light guide member.
- the light source panel 10 is provided with a diffusion plate 10b and a light guide member 10e for adjusting the light transmission of the light source 10a.
- the light guide member 10e is, for example, an optical fiber or the like, and is disposed with respect to each light source 10a as illustrated.
- the light source panel 10 is provided with a power unit (not shown) for adjusting the distance between the diffusion plate 10b and the light guide member 10e.
- FIG. 4 is a diagram illustrating another example of the configuration of the light source panel 10.
- reference numeral 10f denotes a liquid crystal panel.
- a liquid crystal panel 10f for adjusting the light transparency of the light source 10a is disposed in a state where the distance from the light source 10a is fixed.
- the aperture ratio of the liquid crystal panel 10f can be reduced from the center toward the periphery to blur light.
- FIG. 5 is a diagram illustrating an example of a mounting position of the light source panel 10 in the vehicle 1.
- reference numeral 20 is a front window glass having a double image suppression structure such as a tapered glass
- reference numeral 21 is a hood
- reference numeral 22 is an instrument panel
- reference numeral 23 is a meter panel.
- 24 is a steering wheel
- 30 is a driver's eye point
- 31 is a virtual image due to light from the light source panel 10
- 32 is a horizontal line passing through the eye point
- Reference numeral 33 denotes an optical path of light from the light source panel 10.
- the light source panel 10 is installed on the instrument panel 22, and in particular, the driver at the lowest layer of the driver's peripheral vision (for example, the depression angle ⁇ from the horizontal line 32 passing through the eye point 30 is 5 degrees or less). It is installed at a position where the virtual image 31 can be recognized.
- the light source panel 10 is installed at a position closer to the front window glass 20 than the meter panel 23 (in other words, the back side of the instrument panel 22 as viewed from the eye point 30).
- the eye point 30 is 635 (mm) above the seating reference point 36, which is the hip joint point of the human body model when the human body model is seated on the seat based on ISO 6549-1980.
- FIG. 7 and 8 are diagrams showing another example of the mounting position of the light source panel 10 in the vehicle 1.
- reference numeral 25 denotes a defroster outlet.
- the light source panel 10 is installed at a position in front of the defroster outlet 25 (see FIG. 7) or the back side (see FIG. 8) as viewed from the eye point 30.
- the light source panel 10 is installed below the surface of the instrument panel 22 (in other words, inside the instrument panel 22).
- the light source panel 10 is embedded in the instrument panel 22.
- FIG. 9 is a diagram illustrating another example of the mounting position of the light source panel 10 in the vehicle 1.
- reference numeral 26 denotes a rearview mirror
- reference numeral 27 denotes an A pillar
- reference numeral 34 denotes a driver's gaze direction.
- the light source panel 10 is installed on the instrument panel 22 at a position substantially in front of the driver.
- the light source panel 10 is installed on the instrument panel 22 so that the background of the virtual image 31 when viewed from the eye point 30 is, for example, a foreground (for example, a road or a preceding vehicle).
- FIG. 10 is a diagram illustrating an example of a display range of the virtual image 31 when viewed from above the vehicle 1.
- vehicle 1 having the light source panel 10 mounted on the instrument panel 22 as exemplified above is on a road having a sidewalk width of 1 (m) and a lane width of 3.2 (m), for example, it is viewed from the eye point 30.
- the display range (risk target range) of the virtual image 31 is the illustrated range up to 8.1 (m) on the left side and 22.5 (m) on the right side.
- the lighting control unit 15 detects the environment around the vehicle 1 detected by the objective sensor 11, the driver's gaze or gaze direction detected by the driver sensor 12, the vehicle speed of the vehicle 1 detected by the vehicle speed sensor 13, On the basis of the degree of danger around the vehicle 1 calculated by the risk calculation unit 14a and the like, a lighting pattern for constant use, warning or warning (for example, the light irradiation position on the front window glass 20, the front window glass 20 Lighting related to the irradiation area of light to be projected, the color of light, the brightness of light, the shape of light, the cycle of blinking and blinking of light, the amount of change per unit change of light color or luminance (unit change of color or luminance), etc. Content or lighting mode) is generated, and lighting control (for example, adjustment of applied voltage) of each light source 10a is executed so that the generated lighting pattern is obtained.
- warning or warning for example, the light irradiation position on the front window glass 20, the front window glass 20 Lighting related to the irradiation area of light to be projected, the color of
- FIG. 11 is a diagram illustrating an example of a method for adjusting the color and luminance of light from the light source 10a.
- FIG. 12 is a map that defines the relationship between the distance L and the color / luminance, and the relationship between the angle ⁇ and the color / luminance.
- FIG. 13 is a diagram illustrating an example of a map in which a relationship between a vehicle body color and a constant color, a warning color, a warning color, and luminance is defined.
- the color and brightness of each light source 10a are adjusted in advance according to the distance L and / or the angle ⁇ .
- the color and luminance of each light source 10a are a map (see FIG. 12) that defines the relationship between the distance L and the color / luminance and / or a map that defines the relationship between the angle ⁇ and the color / luminance (see FIG. 12).
- the distance L is a distance from the light source 10a to the light irradiation position of the light source 10a on the front window glass 20.
- the angle ⁇ is an angle formed by the front window glass 20 and a line segment connecting the arrangement position of the light source 10a and the light irradiation position.
- each light source 10a at the time of alerting and warning are adjusted in advance according to the color of the instrument panel, A pillar, side mirror, or the like.
- the color and brightness of each light source 10a at the time of alerting and warning are always based on a map (see FIG. 13) that defines the relationship between the vehicle body color and the always-on color, alerting color, warning color, and brightness. Adjusted. The state of adjustment regarding these colors and luminances is stored in the storage area of the lighting control unit 15.
- the lighting control unit 15 may adjust the luminance or color of light by turning on / off a headlight or a conlight sensor. For example, the lighting control unit 15 may reduce the luminance of light at night. Further, the lighting control unit 15 may adjust the luminance, color, period (flashing), and the like of light according to the reliability of the degree of danger estimated by the risk calculation unit 14a. Further, the lighting control unit 15 may stop the light recognized by the driver among the lights that are lit based on the driver's gazing point or the gazing direction detected by the driver sensor 12. Luminance, color, etc. may be reduced. The lighting control unit 15 may also notify the contents of the dangerous object (for example, whether the dangerous object is a person or a car) according to the position or direction of the dangerous object.
- the dangerous object for example, whether the dangerous object is a person or a car
- the transmission control unit 16 detects the environment outside the vehicle 1 detected by the objective sensor 11, the driver's gaze or gaze direction detected by the driver sensor 12, the vehicle speed of the vehicle 1 detected by the vehicle speed sensor 13, Based on the degree of danger around the vehicle 1 calculated by the risk calculation unit 14a, the lighting pattern generated by the lighting control unit 15, and the like, the light transparency (blurring / diffusibility) of the light source 10a in the light source panel 10 is determined. adjust. In other words, the lighting control unit 15 can adjust the degree of the sharpness of the light projected on the front window glass 20, that is, the virtual image 31.
- the transmission control unit 16 sets the entire distance between the light source 10a and the diffusion plate 10b when the light source panel 10 shown in FIG. 2 is used.
- the distance between the diffuser plate 10b and the light guide member 10e is increased as a whole, and when the light source panel 10 shown in FIG. 4 is used, the liquid crystal panel 10f.
- the overall aperture ratio is reduced.
- the virtual image 31 can be changed from a clean state as shown in FIG. 14 to a blurred and blurred state as shown in FIG. That is, the virtual image 31 can be blurred.
- the transmission control unit 16 determines the distance between the light source 10a and the diffusion plate 10b when the light source panel 10 shown in FIG. 2 is used according to the degree of danger calculated by the risk calculation unit 14a.
- the transmission control unit 16 increases the distance between the light source 10a and the diffusion plate 10b as a whole, increases the distance between the diffusion plate 10b and the light guide member 10e as a whole, and opens the aperture. Reduce the overall rate.
- the transmission control unit 16 shortens the distance between the light source 10a and the diffusion plate 10b as a whole, and shortens the distance between the diffusion plate 10b and the light guide member 10e as a whole.
- the overall aperture ratio is increased.
- the transmission control unit 16 uses the light source 10a when the light source panel 10 shown in FIG. 2 is used. 3 is shortened as a whole, and when the light source panel 10 shown in FIG. 3 is used, the distance between the diffusion plate 10b and the light guide member 10e is shortened as a whole, and the light source shown in FIG.
- the aperture ratio of the liquid crystal panel 10f is increased as a whole. Thereby, the virtual image 31 corresponding to specific information can be projected in a clear state.
- the transmission control unit 16 determines the distance between the light source 10a and the diffuser plate 10b according to the vehicle speed of the vehicle 1 detected by the vehicle speed sensor 13 when the light source panel 10 shown in FIG. 2 is used.
- the distance between the diffusion plate 10b and the light guide member 10e is adjusted, and when the light source panel 10 shown in FIG. 4 is used, the aperture ratio of the liquid crystal panel 10f is adjusted.
- the transmission control unit 16 shortens the distance between the light source 10a and the diffusion plate 10b as a whole, and the diffusion plate 10b and the light guide member 10e. And the overall aperture ratio is increased.
- the transmission control unit 16 increases the distance between the light source 10a and the diffusion plate 10b as a whole, The distance from the light guide member 10e is increased as a whole, and the aperture ratio is decreased as a whole.
- the virtual image 31 can be projected in a clear state as shown in FIG. 16, and when the vehicle 1 is running, the virtual image 31 is blurred as shown in FIG. It can be projected in a blurred state.
- the transmission control unit 16 corresponds to the arrangement position of the light source 10a that irradiates light near the driver's gazing point 38 detected by the driver sensor 12 in the diffusion plate 10b.
- the distance from the light source 10a is partially increased only by the portion to be used.
- the transmission control unit 16 partially increases the distance from the diffusion plate 10b by the light guide member 10e disposed in the light source 10a that irradiates light near the gazing point 38. To do.
- the transmission control unit 16 reduces the aperture ratio only in a portion corresponding to the arrangement position of the light source 10a that irradiates light near the gazing point 38 in the liquid crystal panel 10f. As a result, as shown in FIG. 18, only the portion of the virtual image 31 viewed by the driver (the portion in the vicinity of the gazing point 38) can be selectively displayed in a blurred state.
- the transmission control unit 16 adjusts the light transmission of the light source 10a in the light source panel 10 according to the road shape such as a left curve or a right curve.
- the transmission control unit 16 emits light in the direction of change of the road shape that the driver watches in the diffuser plate 10b (for example, right direction for a right curve and left direction for a left curve).
- the distance from the light source 10a is partially increased only by a portion corresponding to the arrangement position of the light source 10a to be irradiated.
- the transmission control unit 16 partially sets the distance from the diffusion plate 10b to the light guide member 10e disposed in the light source 10a that irradiates light in the direction of change in the road shape. Lengthen.
- the transmission control unit 16 reduces the aperture ratio only in a part of the liquid crystal panel 10f corresponding to the arrangement position of the light source 10a that emits light in the direction of change in the road shape. As a result, as shown in FIG. 19, only the portion in the curve direction (the portion in the vicinity of the gaze direction 34) that the driver gazes in the virtual image 31 can be selectively displayed in a blurred state.
- the transmission control unit 16 determines the light transparency of the light source 10a in the light source panel 10 according to the distance from the driver's central visual field (driver's gaze point 38 detected by the driver sensor 12) to the virtual image 31. adjust.
- the transmission control unit 16 increases the distance between the light source 10a and the diffuser plate 10b, which are relatively short from the gazing point 38, with respect to the gazing point 38.
- the distance between the light source 10a and the diffusion plate 10b having a relatively long distance is relatively shortened, and the distance between the light source 10a and the diffusion plate 10b at which the distance from the gazing point 38 is a relatively intermediate distance is relatively set. To a middle distance.
- the transmission control unit 16 relatively sets the distance between the light guide member 10e and the diffusion plate 10b disposed in the light source 10a that is relatively short from the gazing point 38.
- the distance between the light guide member 10e disposed in the light source 10a and the diffusion plate 10b which is the distance of the distance, is set to a relatively intermediate distance.
- the transmission control unit 16 relatively reduces the aperture ratio of the portion of the liquid crystal panel 10f corresponding to the arrangement position of the light source 10a whose distance from the gazing point 38 is relatively short.
- the aperture ratio of the portion of the liquid crystal panel 10f corresponding to the arrangement position of the light source 10a having a relatively long distance from the gazing point 38 is relatively increased, and the distance from the gazing point 38 is relatively intermediate.
- the aperture ratio of the portion of the liquid crystal panel 10f corresponding to the arrangement position of the light source 10a is set to a relatively middle size.
- the control flow shown in FIG. 21 is executed in a state where the vehicle 1 is activated, and is repeatedly executed at a predetermined interval, for example.
- step S1 the ECU 14 detects a danger target (notification target).
- ECU14 acquires the information regarding the object (for example, a pedestrian, a bicycle, a motor vehicle, a blind spot, etc.) around the vehicle 1 based on the detection result of the objective sensor 11, for example.
- the ECU 14 determines whether there is a notification target around the vehicle 1 based on the acquired information.
- the notification target is not detected by the objective sensor 11, the ECU 14 determines that the notification target is in a normal state (always), and when the notification target is detected, the ECU 14 is in a state that requires a warning or warning that the notification target exists. It is determined that When step S1 is executed, the process proceeds to step S2.
- step S2 the danger level is calculated by the ECU 14.
- the risk calculation unit 14a of the ECU 14 calculates the risk level of the notification target based on the position information regarding the notification target detected in step S1.
- the risk calculation unit 14a estimates that the degree of danger is small (a state that requires attention) for the detected notification target whose presence position cannot be confirmed.
- the risk calculating unit 14a calculates the distance between the notification target and the vehicle 1 and the relative deceleration (relative speed or relative acceleration) of the notification target with respect to the vehicle 1 for the notification target whose existence position has been confirmed.
- the risk calculation unit 14a estimates that the degree of danger is large (the state where warning is required) if the distance between the notification target and the vehicle 1 is short, and the degree of danger is small (the need for alerting) if the distance is long. A certain state).
- step S2 the risk calculation unit 14a estimates that the degree of danger is small (a state that requires attention) if the relative deceleration of the notification target with respect to the vehicle 1 is small, and the degree of danger is large if the relative deceleration is large ( It is estimated that there is a need for warning).
- step S2 the process proceeds to step S3.
- the light stimulation is determined by the ECU 14.
- the lighting control unit 15 determines the mode of the light stimulation based on the presence position of the notification target detected in Step S1 and the risk level of the notification target estimated in Step S2.
- the mode of light stimulation includes, for example, the irradiation position and the irradiation area in the horizontal direction (vehicle width direction) and vertical direction (vertical direction) of the light for notification.
- the lighting control unit 15 refers to the map shown in FIG. 22 and determines the mode of light stimulation.
- FIG. 22 is a diagram illustrating an example of a map that defines the relationship between the position to be notified and the degree of danger, the irradiation position of light, and the irradiation area.
- the irradiation position of the light stimulus for notification is set on the left side of the windshield 20 if the position of the notification target is on the left side.
- the irradiation position of the light stimulus for notification is set to the front or right side of the front window glass 20, respectively.
- the lighting control unit 15 refers to the map, and determines the irradiation position and the irradiation area of the attention distribution light as necessary.
- the irradiation position of the light stimulus for attention distribution is set to the right side when the irradiation position of the notification light is on the left side, and is set to the left side when the irradiation position of the notification light is on the right side.
- the light irradiation position for notification is the front or both the left and right, the light irradiation position for attention distribution is not set.
- the irradiation area of the light for notification is set to a large value at the time of warning when the degree of danger of the notification target is large, and is set to a small value at the time of alerting with a low degree of danger.
- the warning light distribution area is smaller than the notification light irradiation area to the extent that the difference from the notification light irradiation area becomes clear at the time of warning with a high degree of danger of the notification target. Is done.
- the light distribution area for caution distribution is slightly larger than the light irradiation area for notification so that there is not much difference from the light irradiation area for notification. Small value.
- the lighting control unit 15 determines the color and brightness of the notification light and the attention distribution light according to the degree of danger of the notification target estimated in step S2 and the maps shown in FIGS. The lighting control unit 15 changes at least one of color and brightness between the notification light and the attention distribution light.
- the lighting control unit 15 determines a change amount (unit change amount) per unit change in the color and brightness of the notification light based on the degree of danger of the notification target estimated in step S2.
- FIG. 23 is a diagram illustrating an example of the relationship between the degree of danger and the amount of change per unit change in light color and brightness.
- the lighting control unit 15 generates a lighting pattern for notification (for alerting or warning) including the determined light irradiation position, irradiation area, color, luminance, and unit change amount. Note that if it is recognized in step S1 that the state around the vehicle 1 is a normal state that does not require alerting or warning, the lighting control unit 15 generates a lighting pattern for regular use.
- the always-on lighting pattern is generated based on the maps shown in FIGS. 12 and 13, and is a lighting pattern including a light color / luminance different from the color / luminance of the notification light.
- step S4 the lighting control unit 15 outputs the light stimulus determined in step S3.
- the lighting control unit 15 sets (corrects) the center position when the light source panel 10 is turned on according to the road shape.
- the lighting control unit 15 controls the lighting of the individual light sources 10a based on the set center position and the lighting pattern for notification or constant determined in step S3. In other words, the lighting control unit 15 controls lighting / extinguishing for each of the light sources 10a, and controls the color / brightness of the light source 10a to be lit and the unit change amount thereof.
- FIG. 24 is a diagram illustrating an example of a situation where a warning is required.
- the notification virtual image 31 set according to the degree of danger of the notification target 2 is left. Projected in the direction.
- a dummy virtual image 31 for attention distribution set so that the sum of the driver's attention distribution around the vehicle 1 is constant is displayed in the right direction.
- FIG. 25 is a diagram illustrating an example of a normal situation.
- a normal (safe) situation as shown in FIG. 25 for example, a situation where the notification target 2 does not exist in the vicinity of the vehicle 1
- a weak virtual image 31 for normal use with a lowered tone is displayed, which is different from that for notification.
- the virtual image 31 for regular use is displayed, for example, in the left direction, the center (front) direction, the right direction, or the whole as viewed from the driver.
- FIG. 26 is a diagram illustrating an example of a scene in which the notification target 2 appears from a normal situation and changes to a situation where a warning is required.
- the lighting control unit 15 corresponds to the portion corresponding to the presence position or direction of the notification target 2 in the green virtual image 31 for constant lighting in the lowermost layer (the lowermost layer in FIG. 26).
- the lighting state of the left part is weakened, and on the other hand, the part corresponding to the presence position or direction of the notification target 2 in the warning red virtual image 31 in the uppermost layer (in FIG. Strengthen the lighting state of (Part).
- FIG. 27 is an explanatory diagram of a virtual image when the vehicle 1 is traveling on a straight road
- FIG. 28 is an explanatory diagram of a virtual image when the vehicle 1 is traveling on a road on a right curve.
- the center position C at the time of lighting is set to the right as viewed from the driver according to the road shape. (Adjusted).
- FIG. 29 is a diagram illustrating an example of a situation that requires alerting the preceding vehicle
- FIG. 30 is a diagram illustrating an example of a situation that requires a warning for the preceding vehicle.
- the vehicle information transmission device 1-1 it is possible to provide information to the driver about the presence of the notification target 2, that is, a human being such as a pedestrian or an obstacle by light stimulation.
- the driver may drive without taking into account the assistance by light stimulation, such as the driver not taking an avoidance action.
- the driver considers the support information by the light stimulus means that the driver pays attention to the light stimulus (virtual image 31) and the notification target related to the support information, and the driver is based on the support information. And other driving operations by the driver in response to a light stimulus or a change in the mode of the light stimulus.
- the driver considers the support information by the light stimulus means that the driver's operation after the support information is provided is based on the provided support information, and the support information is provided.
- the degree of correlation between the trajectory (behavior) of the vehicle 1 assumed based on the provided support information and the actual trajectory (behavior) of the vehicle 1 after the support information is provided is high. Is included. It can be assumed that the driver does not consider the support information by the light stimulus except when the driver considers the support information by the light stimulus. For example, if the driver does not take the avoidance action even though the information about the notification target is provided by the light stimulus, it can be determined that the driver does not consider the support information by the light stimulus.
- assistance by light stimulation may be unnecessary and troublesome for the driver.
- the driver does not always watch the virtual image 31 projected. For this reason, even if it supports by light stimulation, a driver
- the driver may not have considered the light stimulus. As an example, there is a possibility that the driver is less likely to notice light stimulation due to ambient light.
- the vehicle information transmission device 1-1 of the present embodiment determines whether the driver is driving in consideration of support information by light stimulation. As described below, the vehicle information transmission apparatus 1-1 determines whether or not the method of presenting the light stimulus is the cause when it is determined that the driver is not driving in consideration of the support information. If it is determined that the method of applying light stimulation is the cause, the vehicle information transmission device 1-1 changes the method of applying light stimulation. For example, the lighting pattern is changed to a lighting pattern that allows the driver to feel the danger level more strongly as a method of applying light stimulation. Therefore, according to the vehicle information transmission device 1-1 of the present embodiment, information on alerts and warnings can be appropriately transmitted to the driver according to the sensitivity of the driver, the surrounding environment of the vehicle 1, and the like. The mode of light stimulation can be changed so that
- the operation data is acquired by the ECU.
- the driving data includes information related to the driver after information is transmitted by light stimulation, operation input such as driving operation by the driver, and behavior of the vehicle 1.
- the information regarding the driver includes the driver's gaze point and gaze direction, the driver's posture, the driver's voice, the driver's skill, the continuous driving time, and the like.
- the driving operation includes, for example, an accelerator operation, a brake operation, a steering operation, a winker operation, a speed change operation, an operation input to other operators, and the like.
- the behavior of the vehicle 1 includes position information of the vehicle 1, longitudinal acceleration, lateral acceleration, yaw rate, vehicle speed, and the like.
- the position information includes absolute position information of the vehicle 1, relative position information with respect to a white line or curb on the road, relative position information with respect to the notification target 2, and the like.
- the position information includes not only coordinate values but also speed, acceleration, jerk, and the like.
- step S6 the ECU 14 determines whether or not the driver considers the support information.
- the ECU 14 performs the determination in step S6 by a method described with reference to FIG.
- FIG. 31 is an explanatory diagram of one method for determining whether or not support information is considered.
- FIG. 31 shows a method of performing the determination in step S6 based on the trajectory of the vehicle 1 when traveling while avoiding the pedestrian 61 existing on the traveling path of the own vehicle.
- symbol Tr ⁇ b> 0 indicates an ideal trajectory calculated by the ECU 14 based on the detected pedestrian 61
- symbol Tr ⁇ b> 1 indicates an actual trajectory of the vehicle 1.
- the ideal trajectory Tr0 indicates the ideal danger avoidance behavior calculated by the system
- the actual trajectory Tr1 indicates the actual danger avoidance behavior.
- the trajectory of the vehicle 1 can be, for example, a trajectory drawn by a representative point such as the center of gravity of the vehicle 1.
- Reference numeral 62 indicates a white line drawn on the traveling path of the vehicle.
- the ECU14 will calculate the ideal locus
- the ideal trajectory Tr0 is a trajectory that can travel with a sufficient distance from the pedestrian 61 on the side of the vehicle 1, for example. 31 changes the traveling direction of the vehicle 1 in a direction away from the pedestrian 61 and the white line 62 at the point P0 before the pedestrian 61, and passes the side of the pedestrian 61. It is a trajectory.
- the method for detecting the white line 62 and calculating the position of the white line 62 can be performed by a conventionally known method.
- the ECU 14 can detect the white line 62 based on image data around the vehicle 1 captured by a camera mounted on the vehicle 1 and obtain the position of the white line 62.
- the ECU 14 may detect the relative position between the white line 62 and the pedestrian 61 based on the image data.
- the ECU14 determines the required passing interval W0 with respect to the white line 62 when passing the side of the pedestrian 61 based on the positional relationship of the pedestrian 61 and the white line 62.
- the lateral passage interval is, for example, an interval in the vehicle width direction between the representative point of the own vehicle and the white line 62.
- the required side passage interval W0 is the interval in the vehicle width direction between the white line 62 and the passing trajectory of the vehicle 1 that are necessary for traveling while maintaining a sufficient interval with respect to the pedestrian 61.
- an ideal trajectory Tr0 is determined based on the moving direction and moving speed of the pedestrian 61.
- the ideal trajectory Tr0 may be determined as being able to achieve both behavioral stability of the vehicle 1 and avoiding the pedestrian 61.
- the ECU 14 can calculate the actual travel locus Tr1 of the vehicle 1 based on the driving data acquired in step S5.
- the actual travel locus Tr1 may be based on, for example, the position information of the own vehicle acquired from the navigation system, or may be based on image data captured by an imaging device such as a camera.
- the traveling direction of the vehicle 1 is changed and the avoidance action is started at the point P1 that is closer to the pedestrian 61 than the point P0 in the traveling direction.
- the timing at which the driver starts the avoidance action (hereinafter, also simply referred to as “avoidance timing”) is later than the avoidance timing in the case of traveling along the ideal locus Tr0.
- the lateral passage interval W1 in the actual trajectory Tr1 is smaller than the lateral passage interval W0 of the ideal trajectory Tr0.
- the ECU 14 can make the determination in step S6 based on the difference between the ideal avoidance timing and the actual avoidance timing, or the difference between the ideal side passage interval W0 and the actual side passage interval W1.
- the deviation between the ideal and the actual is large in the avoidance timing and the side passage interval, it is possible to estimate that at least one of the operation input and the behavior of the vehicle 1 is not based on the transmitted support information.
- the actual avoidance timing is later than the ideal avoidance timing and the difference in avoidance timing exceeds a threshold, or when the actual side passage interval W1 is smaller than the ideal side passage interval W0 and the side If the difference ⁇ W in the passage interval exceeds the threshold value, a negative determination is made in step S6.
- the present invention is not limited to this, and the degree of correlation between the ideal locus Tr0 and the actual locus Tr1 may be calculated, and if the degree of correlation is low, a negative determination may be made in step S6.
- the method for determining whether or not the driver considers the support information is not limited to this. Whether or not the support information is taken into consideration can be determined based on at least one of the acquired information on the driver, the scanning input, or the behavior of the vehicle 1.
- the ECU 14 may determine whether or not the driver considers the support information based on information on the driver. For example, the driver gives support information when the driver does not turn his / her gaze at the notification target 2 after the alert or warning information is transmitted by light stimulation or when the time when the notification target 2 is gazed is short. It may be determined that no consideration is given. Further, it may be determined that the driver does not consider the support information when the operation input for avoiding danger is not made after the information is transmitted. In other words, when the operation input after the information is transmitted is not based on the transmitted information, it may be determined that the driver does not consider the support information.
- step S6-Y when it is determined that the driver considers the support information (step S6-Y), the control flow ends. Otherwise (step S6-N), the process proceeds to step S7. move on.
- step S7 the ECU 14 determines whether or not the method of providing support information is the cause.
- the ECU 14 determines whether the driver does not consider the support information because of the way in which the support information is given, that is, in the form of light projected on the windshield 20.
- the determination method in step S7 is not limited as long as it can be determined whether the cause of the driver not driving in consideration of the support information is the method of presenting information by light stimulation. For example, if the actual avoidance timing is later than the ideal avoidance timing, it can be estimated that the operation input and the behavior of the vehicle 1 are not based on the transmitted support information. In this case, it can be considered that it took time for the driver to notice a warning or warning by a light stimulus.
- the ECU 14 may determine that the cause of the provision of the support information is caused when the actual avoidance timing is delayed by a certain amount or more than the ideal avoidance timing.
- the ECU 14 may determine that the method of providing support information is the cause when the actual side passage interval W1 is smaller than the ideal side passage interval W0 by a certain amount or more.
- step S8 if an affirmative determination is made in this step, light stimulus correction processing is performed in step S8. Before and after this correction processing is performed, if there is no change in the determination result of whether or not the support information in step S6 is taken into account or the determination parameter, it may be determined that the method of providing support information is the cause. For example, when the determination result in step S6 remains negative before and after the light stimulus correction process, it can be determined that the cause is how to provide support information.
- the determination parameter include a difference between the ideal avoidance timing and the actual avoidance timing, and a difference ⁇ W in the side passage interval between the ideal side passage interval W0 and the actual side passage interval W1.
- the ECU 14 may determine that the cause is the way of providing the support information when the determination parameter does not change before and after the light stimulus correction process or when the change is small. Moreover, even if the ECU 14 does not determine that the driver is considering the support information in step S6 even if the virtual image 31 is displayed with the lighting pattern with the highest degree of warning, the ECU 14 determines that the way of providing the support information is not the cause. can do.
- the method of providing support information is a cause based on information on the driver and operation input. For example, how to give support information when the driver does not turn his / her gaze at the notification target 2 or when the time when the driver is gazing at the notification target 2 is short after the warning or warning information is transmitted by light stimulation. It may be determined that this is the cause. Alternatively, when it is determined that the driver's attention is reduced based on information related to the driver, it may be determined that the method of providing support information is the cause.
- step S7 if it is determined that the cause is the way of providing support information (step S7-Y), the process proceeds to step S8, and if not (step S7-N), the process proceeds to step S9.
- step S8 the ECU 14 performs light stimulus correction processing.
- the ECU 14 changes at least one value of the color, size, shape, blinking cycle, or luminance of the virtual image 31, its change gradient, lighting timing, and the like. For example, if it is determined in step S7 that the driver has not been able to react because it is late to notice lighting with a warning or warning lighting pattern, the driver is quicker with respect to warning or warning lighting.
- at least one value of the lighting color, the blinking frequency, the area, or the luminance of the light source 10a and the change gradient thereof may be changed so that the driver can easily notice the virtual image 31.
- the color, brightness, etc. of the virtual image 31 are changed to the color, brightness, etc. when the magnitude of danger is larger.
- the photostimulation correction process proceeds to step S3, and the photostimulation after correction is determined.
- step S9 the ECU 14 confirms the continuation of support.
- the ECU 14 confirms whether or not the driver needs to continue assistance by light stimulation.
- the ECU 14 prompts the driver to express his intention regarding the necessity of continuing the support.
- the method of asking the driver about the intention of continuing the support is, for example, a method of asking the necessity of continuing the support by voice, a method of displaying a question as to whether or not the support is continued on the navigation screen, and continuing the support of the lighting pattern of the virtual image 31
- the driver There are two ways for the driver to tell the system whether it is necessary to continue assistance, either by telling them when they want to continue assistance, or by telling them when they do not want to continue assistance. do it.
- the method of displaying the intention by the driver is a passive intention display in which the intention is displayed by not performing the operation input or utterance even if the intention is expressed positively by the operation input or utterance. Also good.
- the support continuation switch is a switch that can express a desire to continue support by an operation input such as pressing.
- a method of conveying the intention not to continue the support there are a method of continuing driving, a method of operating the support stop switch, a method of conveying the intention of stopping the support by voice, and the like. If the driver continues driving for a certain period of time after whether or not it is necessary to continue the support, it is determined that the intention is not desired to continue the support. In this way, a driver who does not want to continue assistance can express his intention not to continue assistance without performing a special operation.
- the support stop switch is a switch that can express an intention not to continue support by an operation input such as pressing.
- step S9 if it is determined that the driver wants to continue assistance (step S9-Y), the control flow ends. If not (step S9-N), the process proceeds to step S10. .
- step S10 the ECU 14 stops support by light stimulation.
- step S10 this control flow ends.
- the vehicle information transmission device 1-1 of the present embodiment it is determined whether or not the driver considers the support information by the light stimulus, and it is determined that the driver does not consider it. Further, it is determined whether or not the reason why the support information is not taken into consideration is how to provide the support information. If it is determined that the method of providing support information is the cause, it is determined that the mode of the light stimulus is changed. For example, at least one of the form of light stimulation or lighting or switching timing of light stimulation is changed, and the aspect of light stimulation is changed. Thereby, the suitable optical stimulus which can guide a driver's eyes to information subject 2 is realizable. That is, according to the vehicle information transmission device 1-1 of the present embodiment, when a support effect is not seen, it is possible to change to a support method that can guide the operation according to the driver's feeling.
- the vehicle information transmission apparatus 1-1 of the present embodiment confirms the driver's intention to continue the support when it is not determined that the reason why the support information is not considered is the way of providing the support information.
- the vehicle information transmission device 1-1 ends the driving support by the light stimulus when detecting the intention to stop the support. Thereby, the troublesomeness caused by the unnecessary assistance for the driver can be eliminated.
- FIG. 32 is a flowchart according to this modification.
- step S11 to step S16 can be the same as step S1 to step S6 of FIG. 21, respectively. That is, the ECU 14 detects the danger target in step S11, calculates the degree of danger in step S12, determines the light stimulus in step S13, outputs the light stimulus in step S14, and acquires the operation data in step S15. In step S16, it is determined whether or not the driver considers support information.
- step S17 it is determined in step S17 whether or not the lighting pattern can be changed to a lighting pattern with a higher degree of danger.
- ECU14 can change a lighting pattern as a means to change the presentation method of a light stimulus.
- the lighting pattern includes the light irradiation position, the light irradiation area, the light color, the light luminance, the light cycle (flashing), the light color or the amount of change per unit change in the luminance (color or light).
- the lighting content or lighting mode relating to the unit change amount of the luminance is included.
- the ECU 14 presents a light stimulus with an arbitrary lighting pattern selected from a plurality of lighting patterns having different degrees of danger from a lighting pattern that feels dangerous to a lighting pattern that does not feel dangerous. be able to.
- setting a plurality of lighting patterns with different levels of risk that light colors are different from each other as a lighting pattern for alerting, or a level of risk when light colors are different from each other as a lighting pattern for warning It is possible to set a plurality of lighting patterns with different values.
- the ECU14 determines whether it can change to the lighting pattern in which a danger level is felt stronger than the lighting pattern currently selected.
- the currently selected lighting pattern is a lighting pattern in which it is determined in step S16 whether or not the driver considers the support information by the light stimulation of the lighting pattern.
- step S17 if it is determined that the lighting pattern can be changed to a higher lighting level (step S17-Y), the process proceeds to step S18. If not (step S17-N), the process proceeds to step S19. Proceed to That is, in step S17, when it is possible to change to a lighting pattern with a higher degree of danger, it is presumed that the driver is not driving in consideration of the support information because of providing the support information. On the other hand, when there is no room to change to a lighting pattern with a higher degree of danger, it is presumed that the driver is not driving considering the support information because the way of providing support information is not the cause.
- step S18 the ECU 14 performs light stimulus correction processing.
- the ECU 14 changes the lighting pattern of the light stimulus to a lighting pattern in which the degree of danger is felt stronger.
- the ECU 14 can change the lighting pattern so that the degree of danger is felt stronger by changing the unit change amount of the light color or luminance to a large value.
- step S19 the ECU 14 confirms the continuation of support.
- the lighting pattern of the light stimulus is a lighting pattern that already feels the highest degree of danger.
- the driver is aware that light-stimulated support information is provided, It is thought that support information is not reflected in driving. That is, it can be determined that there is no reason why the driver does not consider the light stimulus in the way of providing the support information by the light stimulus.
- the ECU 14 confirms whether or not the driver needs to continue assistance by light stimulation.
- the ECU 14 may confirm the driver's intention by the same method as in step S9 in FIG. As a result of the determination in step S19, if it is determined that the driver wants to continue assistance (step S19-Y), the control flow ends. If not (step S19-N), the process proceeds to step S20. .
- step S20 the ECU 14 stops the support by light stimulation.
- step S20 this control flow ends.
- the lighting pattern of the light stimulus is changed when the support information is not considered by the driver.
- the reason why the support information is not taken into account is how to apply the light stimulus, and when the light stimulus cannot sufficiently attract the driver's attention.
- FIG. 33 is a flowchart according to the present modification.
- Steps S21 to S26 can be the same as steps S1 to S6 in FIG. 21, respectively. That is, the ECU 14 detects the danger target in step S21, calculates the degree of danger in step S22, determines the light stimulus in step S23, outputs the light stimulus in step S24, and acquires the operation data in step S25. In step S26, it is determined whether or not the driver considers support information.
- step S27 it is determined by the ECU 14 whether there has been a case where there is no support effect in the past regardless of how the light stimulus is applied.
- the ECU 14 is connected to a database for each support scene.
- the database is stored in the storage unit of the ECU 14, for example. In this database, for each scene, the determination result as to whether or not the driver has taken into consideration the support information by light stimulation is recorded.
- the scene includes, for example, those related to the notification target 2 such as the type of the notification target 2 detected, the number of the notification targets 2, the position of the notification target 2, and the positional relationship between the notification target 2 and the vehicle 1.
- the scene includes those relating to vehicle conditions such as vehicle speed, acceleration, and steering status.
- the scene includes a traveling environment such as a traveling road condition (curve, gradient, etc.), a preceding vehicle, an oncoming vehicle, weather, night, visibility, and ambient light.
- the ECU 14 determines, for each scene, whether or not the support information by the light stimulus is considered by the driver, which lighting pattern of the light stimulus the support information is considered by the driver, or the application of the light stimulus. Regardless of the direction, information such as whether assistance information was not considered by the driver is stored in the database. For example, every time the determination of step S26 is performed, the ECU 14 stores the determination result in the database in association with the scene and the lighting pattern. Each time a determination is made, a new determination result is stored in the database, so that information related to past determination results is accumulated in the database as needed.
- step S26 the ECU 14 stores in the database the information related to the negative determination, the lighting pattern of the light stimulus at that time, that is, the method and manner of applying the light stimulus, in association with each other. To do. Further, when an affirmative determination is made in step S26, the ECU 14 stores the fact that the affirmative determination is made, the scene and the lighting pattern of the light stimulus at that time in association with each other in the database. That is, the ECU 14 stores a correspondence relationship between the mode of the light stimulus and whether or not the information transmitted by the stimulus of the mode is considered by the driver.
- the ECU 14 determines whether or not the driver has not considered the support information by the light stimulus for each scene, and if the support information is the light stimulus of which lighting pattern, the driving information A determination can be made as to whether the driver has taken into account the assistance information regardless of how the light stimulus is applied.
- step S26 For example, regarding the same scene as the current scene or a similar (similar) scene, if there is no record in the database for which a negative determination is made in step S26, assistance information by light stimulation in that scene is not considered by the driver. It can be judged that it has never happened. On the other hand, regarding the same scene as the current scene or a similar (similar) scene, if there is a record in the database in which a negative determination is made in step S26, assistance information by light stimulation in that scene is not considered by the driver. It can be judged that there is something.
- the ECU 14 relates to a predetermined scene based on the database, (1) a lighting pattern in which assistance information by light stimulation is not considered by the driver, and (2) assistance information by light stimulation is not considered by the driver.
- a lighting pattern that can be obtained, and (3) a lighting pattern in which assistance information by light stimulation is considered by the driver can be acquired.
- the lighting pattern in which assistance information by light stimulation is not taken into consideration by the driver is, for example, a lighting pattern in which only a record for which a negative determination is made in step S26 for a record related to a predetermined scene in the database exists. It can be.
- the lighting pattern in which assistance information by light stimulation may not be considered by the driver is, for example, a record in which a negative determination is made in step S26 and an affirmative determination in step S26 for a record related to a predetermined scene in the database. It can be a lighting pattern in which both of the recorded records exist.
- the lighting pattern in which assistance information by light stimulation is taken into consideration by the driver is, for example, a lighting pattern in which only a record in which an affirmative determination is made in step S26 exists for a record related to a predetermined scene in the database. Can do.
- the ECU 14 indicates whether the support information has not been considered by the driver regardless of how the light stimulus is applied regarding the same scene as the current scene or a similar (similar) scene. A determination can be made on the basis.
- the lighting pattern with the highest degree of danger is (1) the lighting pattern in which the driver does not consider the assistance information by light stimulation.
- the lighting patterns described in (1) above how to apply a light stimulus to the scene Regardless of the case, it may be determined that the driver information has not been considered by the driver. That is, based on the information stored in the database, the ECU 14 can determine whether the driver does not consider the support information because of the stimulation mode.
- step S27 if it is determined that there has been no support effect in the past in the same scene regardless of how the light stimulus is applied (step S27-Y), the process proceeds to step S29; In step S27-N), the process proceeds to step S28.
- step S28 the ECU 14 performs light stimulus correction processing.
- the ECU 14 changes the lighting pattern of the light stimulus to a lighting pattern that can be easily considered by the driver, based on information recorded in the database. For example, when the current lighting pattern is classified into (1) a lighting pattern in which assistance information by light stimulation is not considered by the driver, the ECU 14 determines whether the current lighting pattern is (1) Change to the lighting pattern of 3). Moreover, ECU14 changes to the lighting pattern of said (3), when the present lighting pattern is classified into the lighting pattern of (2) according to a database. Note that the method of light stimulus correction processing is not limited to this. For example, as in the above embodiment, the lighting pattern may be changed to a lighting pattern with a higher degree of danger. If step S28 is performed, it will transfer to step S23 and a light stimulus will be determined.
- step S29 the ECU 14 confirms the continuation of support.
- the ECU 14 can confirm the driver's intention, for example, in the same manner as in step S9 in the above embodiment (FIG. 21).
- step S29-Y if it is determined that the driver wants to continue assistance (step S29-Y), the control flow ends. If not (step S29-N), the process proceeds to step S30. .
- step S30 the ECU 14 stops the support by light stimulation.
- step S30 this control flow ends.
- this modification it is determined whether or not the cause of not considering the support information is how to apply the light stimulus based on the past determination result regarding whether the driving is performed in consideration of the support information. Therefore, it is possible to accurately determine whether the reason why the support information is not taken into account is how to apply the light stimulus. Further, it is possible to appropriately determine the correction content when performing the light stimulus correction processing so that the support information by the light stimulus is taken into consideration based on the past determination result.
- elements constituting the light stimulus presentation method when there are a plurality of elements constituting the light stimulus presentation method, it is possible to determine which element is the cause for which the support information is not considered.
- Elements constituting the light stimulus presentation method may include light color, size (area), shape, blinking cycle, luminance, light color, luminance change gradient, and lighting timing.
- the ECU 14 can acquire the correlation between the timing when the lighting pattern is changed and whether the support information is taken into consideration regarding the same scene as the current scene. Based on this correlation, it can be determined whether the support information is not taken into account because the lighting pattern change timing is late with respect to the distance to the notification target 2 or TTC.
- the change timing of the lighting pattern can be estimated as one of the causes that the support information is not considered.
- the ECU 14 can determine whether the reason why the support information is not taken into account is that the operation cannot be guided without transmitting a sense of risk to the driver.
- the elements related to the sense of risk are lighting color, size, shape, blinking cycle, light color, luminance change gradient, and the like. For example, when support information is provided with light stimulation with the current blinking cycle, there is a record in which the support information has not been considered in the past, and support information is provided with light stimulus with a blinking cycle smaller than the current blinking cycle If there is no record in which support information has not been considered in the past, it can be estimated that one of the causes for which support information has not been considered is the blinking cycle.
- a correction process for reducing the blinking cycle of the light stimulus may be performed in step S28.
- step S28 a correction process may be performed to change the lighting color to a color that gives a stronger risk. If it is determined that the shape of the light is the cause, a correction process for changing the shape of the virtual image 31 to a shape that feels a stronger risk in step S28 may be performed. If it is determined that the area of light is the cause, it is sufficient that correction processing for increasing the area of the virtual image 31 is performed in step S28, and it is determined that the cause is a change gradient of the color or luminance of the light. In such a case, a correction process for steepening the luminance change gradient may be performed in step S28.
- Vehicle Information Transmission Device 1 Vehicle 2 Information Target 10a
- Light Source 14 ECU 20 front window glass 30 eye point 31 virtual image 38 gazing point 61 pedestrian Tr0 ideal trajectory Tr1 actual trajectory
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Abstract
Description
図1から図31を参照して、実施形態について説明する。本実施形態は、車両用情報伝達装置に関する。図1は、実施形態に係る車両用情報伝達装置1-1の構成の一例を示すブロック図である。
実施形態の第1変形例について説明する。本変形例において、上記実施形態と異なる点は、光刺激の提示方法を変更することによって、運転者が情報を考慮しない原因が光刺激の提示方法によるかを判定する点である。図32は、本変形例に係るフローチャートである。
実施形態の第2変形例について説明する。本変形例において、上記実施形態と異なる点は、過去に同様のシーンで光刺激点灯パターンによらず支援効果が見られないということがあったかに基づいて、支援情報が考慮されない原因が光刺激の与え方にあるか否かを判定する点である。図33は、本変形例に係るフローチャートである。
1 車両
2 報知対象
10a 光源
14 ECU
20 フロントウインドウガラス
30 アイポイント
31 虚像
38 注視点
61 歩行者
Tr0 理想の軌跡
Tr1 実際の軌跡
Claims (8)
- 光による刺激によって運転者に情報を伝達し、
前記情報を伝達した後の前記運転者に関する情報、操作入力あるいは車両の挙動の少なくともいずれか一つに基づいて、前記刺激の態様を変更するか否かを決定する
ことを特徴とする車両用情報伝達装置。 - 前記運転者によって前記情報が考慮されていないと判定した場合に前記刺激の態様を変更する
請求項1に記載の車両用情報伝達装置。 - 前記情報を伝達した後の前記操作入力あるいは前記車両の挙動の少なくともいずれか一方が前記情報に基づいていない場合に前記刺激の態様を変更する
請求項1に記載の車両用情報伝達装置。 - 前記運転者によって前記情報が考慮されていない原因が前記刺激の態様にあると判定した場合に前記刺激の態様を変更する
請求項2に記載の車両用情報伝達装置。 - 前記情報を伝達した後の前記操作入力あるいは前記車両の挙動の少なくともいずれか一方が前記情報に基づいていない場合に前記運転者によって前記情報が考慮されていないと判定する
請求項2に記載の車両用情報伝達装置。 - 前記運転者によって前記情報が考慮されていない原因が前記刺激の態様にあると判定されない場合、前記運転者に対して前記刺激による情報の伝達を継続するか否かを確認する
請求項4に記載の車両用情報伝達装置。 - 前記刺激の態様と、当該態様の刺激によって伝達した情報が前記運転者によって考慮されたか否かとの対応関係を記憶し、前記記憶に基づいて前記運転者によって前記情報が考慮されていない原因が前記刺激の態様にあるか否かを判定する
請求項4または6に記載の車両用情報伝達装置。 - 前記刺激の態様には、前記光の輝度、前記光の色、映し出す前記光の大きさ、映し出す前記光の形状、前記光の明滅の周期、前記光の輝度の変化勾配、あるいは前記刺激のタイミングの少なくとも一つが含まれる
請求項1に記載の車両用情報伝達装置。
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EP11869524.6A EP2736028B1 (en) | 2011-07-21 | 2011-07-21 | Vehicle information transmitting apparatus |
US14/233,287 US9384649B2 (en) | 2011-07-21 | 2011-07-21 | Vehicle information transmitting apparatus |
JP2013524563A JP5664784B2 (ja) | 2011-07-21 | 2011-07-21 | 車両用情報伝達装置 |
PCT/JP2011/066604 WO2013011588A1 (ja) | 2011-07-21 | 2011-07-21 | 車両用情報伝達装置 |
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JP7039855B2 (ja) | 2017-04-17 | 2022-03-23 | 株式会社デンソー | 運転支援装置 |
JP7558850B2 (ja) | 2021-03-12 | 2024-10-01 | 本田技研工業株式会社 | 注意喚起システム、及び注意喚起方法 |
JP7555895B2 (ja) | 2021-09-29 | 2024-09-25 | 本田技研工業株式会社 | 注意喚起システム、及び制御用プログラム |
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EP2736028A4 (en) | 2015-05-06 |
EP2736028A1 (en) | 2014-05-28 |
CN103650015B (zh) | 2016-07-06 |
JP5664784B2 (ja) | 2015-02-04 |
CN103650015A (zh) | 2014-03-19 |
EP2736028B1 (en) | 2019-05-22 |
US9384649B2 (en) | 2016-07-05 |
US20140132407A1 (en) | 2014-05-15 |
JPWO2013011588A1 (ja) | 2015-02-23 |
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