JP2019156296A - Vehicular display projection device - Google Patents

Abstract

To reflect actual property or the like of a driver, suppress unnecessary virtual image display, display a virtual image at a proper timing, and transmit information effectively without inhibiting a driving operation.SOLUTION: A vehicular display projection device acquires information indicating individual driving tendency of a vehicle driver, and when determining a length of a period in which HUD display is continued, reflects information of the driving tendency. Since the HUD display is performed only when it is required, according to a timing when a driver views actually, the HUD display, so that, such a situation in which, the virtual image of HUD displayed in a state of being superposed to a background such as a landscape in a driver visual field, interferes visual recognition of a pedestrian in the background, can be avoided. The driving tendency such as a visual recognition operation continuation period is grasped for every kind of the display information being HUD displayed, and the HUD display is performed at a proper timing according to the display information.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a vehicle display projection apparatus that projects visible information in or near a field of view when a vehicle driver is driving.

  In a vehicle display device mounted on an automobile or the like, display timing may be important. Therefore, for example, when the vehicle display device of Patent Document 1 displays a meter image and a navigation image in a meter panel in a mixed manner, the driver's recognition degree for a more important meter image or the like is increased, and the production effect is achieved. The technique for improving the driver's interest in the displayed content is shown.

  In Patent Document 1, when an image is displayed on a display by turning on IGN, first, an image of a pointer portion and a warning lamp image in a meter image are displayed. Regarding the meter image, the dial portion image is displayed when a predetermined time, for example, 0.2 seconds elapses after the pointer portion image is displayed. Then, a navigation image is displayed when a predetermined time has elapsed after displaying the image of the dial portion. This predetermined time is a time during which the display of the meter image and the warning light image can be visually recognized, and is, for example, a time of 0.5 seconds to 1.0 seconds. Therefore, the meter image and the warning light image can be visually recognized during the period when the navigation image is not displayed.

JP 2007-131291 A

  On the other hand, in the case of a head-up display (HUD) mounted on a vehicle, visible information visible to the driver is reflected in the driver's field of view through a window glass (windshield) area in front of the vehicle. The image is projected and displayed as a virtual image so as to be superimposed on a landscape such as a road or to be visually recognized at a position in the vicinity thereof.

  Therefore, when using the display of the head-up display, the driver can view the virtual image displayed in the same field of view at the same time while viewing the scenery such as the road conditions necessary for driving without moving the viewpoint greatly. become. However, there is a possibility that the positions of pedestrians, bicycles, etc. existing in the scenery within the driver's field of view overlap with the virtual image display. For this reason, for example, if virtual image display is executed continuously for a long time, this virtual image display may interfere with the operation of a driver who visually recognizes a pedestrian or a bicycle, making it difficult to ensure driving safety, It can be considered that the driver feels annoying the virtual image display.

  Therefore, for example, as shown in Patent Document 1, it is necessary to emphasize display timing. However, it is not always possible to obtain a preferable result only by controlling the display according to a predetermined timing as in Patent Document 1.

  In other words, the timing at which the driver actually needs information on the virtual image display and the length of time until the driver can read the information reliably after visually recognizing the virtual image display are subject to individual differences and changes in the situation. It changes a lot. Therefore, if the time for which the virtual image display is continued is too short for the individual driver, there is a high possibility that the driver will not be able to recognize the necessary information. There is a high possibility that it will be a hindrance when the driver visually recognizes.

  The present invention has been made in view of the above-described circumstances, and its purpose is to display a virtual image at an appropriate timing while suppressing unnecessary virtual image display, reflecting the characteristics of the driver and the like. It is an object of the present invention to provide a vehicle display projection apparatus that enables effective information transmission.

In order to achieve the above-described object, the vehicle display projection apparatus according to the present invention is characterized by the following (1) to (5).
(1) a display output unit that projects visible information in or near the driver's field of view;
A driving tendency acquisition unit for acquiring information representing a personal driving tendency of the driver;
A display information generation unit that generates corresponding display information in accordance with the occurrence of a predetermined event;
Along with the occurrence of the event, the display information is projected on the display output unit as the visible information, and at least the duration of the display time of the visible information is adjusted according to the driving tendency information. A display timing adjustment unit for
A vehicle display projection apparatus comprising:

  According to the vehicle display projection apparatus having the configuration (1), the length of the duration of the display information projected as a virtual image in the driver's field of view reflects the personal driving tendency of the vehicle driver. Will be adjusted automatically. Therefore, for example, the virtual image of the display information that the driver has already visually recognized and read does not continue to appear in the driver's field of view and can prevent the sight of a pedestrian or bicycle that is a real image in the field of view. . On the contrary, it is possible to avoid the disappearance of the virtual image of the display information necessary for information transmission before the driver grasps the display contents, and it is possible to reliably transmit information from the in-vehicle system to the driver. . In addition, since the display information is projected as a virtual image in the field of view during driving, it is possible to transmit information in the normal driving state even if the driver does not move the line of sight greatly, ensuring driving safety. it can.

(2) The driving tendency acquisition unit manages information on the driving tendency to be acquired in a state associated with the type of the display information,
The display timing adjustment unit adjusts the length of the duration based on the driving tendency information associated with the type of the display information to be output.
The vehicle display projection apparatus according to (1) above.

  According to the vehicle display projection apparatus having the configuration (2), the driving tendency of each driver can be grasped with higher accuracy, and the difference can be reflected in the duration. That is, it is assumed that the display information presented to the driver to assist driving is different in type for each driving situation, and the driving tendency of each driver is also different for each driving situation. Therefore, by selecting an independent driving tendency parameter for each type of display information and adjusting the duration, the display timing can be easily matched to the actual driving tendency of the driver.

(3) A driver attribute acquisition unit that acquires information representing a personal driver attribute of the driver,
The display timing adjustment unit adjusts the length of the duration in a state where the driver attribute is taken into account.
The vehicle display projection apparatus according to (1) or (2).

  According to the vehicle display projection apparatus having the configuration (3), the duration can be adjusted to reflect not only the individual driving tendency of the driver but also the individual driver attributes. Therefore, for example, even if a driving tendency including a large error happens to be temporarily measured, information on the driver attribute with a relatively small error, such as the age of the driver and the length of driving experience, is included in the duration. By reflecting, this time can be made a more preferable length.

(4) a driving environment acquisition unit that acquires information representing the current driving environment state that affects the driving of the driver;
The display timing adjustment unit adjusts the length of the duration in consideration of the state of the driving environment.
The vehicle display projection apparatus according to any one of (1) to (3).

  According to the vehicle display projection apparatus having the configuration (4), the duration can be adjusted so as to reflect not only the individual driving tendency of the driver but also the state of the driving environment. Therefore, even if the virtual image display becomes temporarily difficult to visually recognize due to differences in the brightness of the environment, for example, it is possible to reliably transmit information from the in-vehicle system to the driver by adjusting the duration time Become.

(5) The driving environment acquisition unit acquires, as the state of the driving environment, presence / absence of a driving history of a road including at least a current point of the vehicle, or information on a driving frequency,
The vehicle display projection apparatus according to (4) above.

  According to the vehicular display projection apparatus having the configuration (5), the duration can be adjusted to reflect the presence / absence of the travel history relating to the currently traveling road and the travel frequency. For example, if the same driver has traveled on the same road many times in the past, the time required for visual recognition of the virtual image can be shortened because the driving operation has a margin, or the provision of information itself It may not be necessary. Therefore, it is considered that a shorter duration is preferable in such a state.

  According to the vehicle display projection apparatus of the present invention, the virtual image display can be performed at an appropriate timing while suppressing the virtual image display when unnecessary, reflecting the characteristics of the driver, etc., so that effective information transmission is possible. become.

  The present invention has been briefly described above. Further, the details of the present invention will be further clarified by reading through a mode for carrying out the invention described below (hereinafter referred to as “embodiment”) with reference to the accompanying drawings. .

FIG. 1 is a block diagram illustrating a configuration example of a HUD system. FIG. 2 is a time chart showing an example of a temporal relationship between the operation of the HUD system and the driver's state when performing general control. FIG. 3 is a time chart showing an example of a temporal relationship between the operation of the HUD system and the driver's state when performing characteristic control. FIG. 4 is a flowchart showing an operation example of the HUD display control device for constructing the database. FIG. 5 is a flowchart showing a specific example of display control in the operation of the HUD display control device.

  Specific embodiments relating to the present invention will be described below with reference to the drawings.

<Configuration example of HUD system>
A configuration example of a HUD (head-up display) system including a vehicle display projection apparatus according to an embodiment of the present invention is shown in FIG. The HUD system 10 is used in a state where it is mounted on a vehicle such as an automobile.

  The HUD system 10 shown in FIG. 1 includes a driver (driver) attribute acquisition device 11, a driving tendency acquisition device 12, a driving environment acquisition device 13, a HUD display control device 14, a HUD display output device 15, an advanced driving support system (ADAS). : Advanced Driver-Assistance Systems) 16 and database DB.

  The driver attribute acquisition device 11 is a device that acquires information that has a high possibility of affecting driving among actual driver individual attributes. As a specific example, information on the driver's age and driving history (years, etc.) is acquired. Of course, various other attribute information may be used.

  The driving tendency acquisition device 12 is a device that acquires information representing the tendency of an actual driver's individual driving operation. The driving tendency acquisition device 12 is a personal habit or the like regarding acceleration operation, deceleration operation, steering operation (steering operation), etc. Acquire information that can identify driving tendency that represents the difference in ability. Actually, it is possible to grasp the driving tendency by using the result of monitoring the driving situation by always photographing the situation such as the driver's face using the camera installed in the passenger compartment.

The driving tendency information acquired by the driving tendency acquisition device 12 includes, for example, information shown in the following (a1) to (a3).
(A1) A delay time from when the driver's visual recognition operation is terminated to the HUD display for guiding the driving operation until the driving operation corresponding to the display content is actually performed.
(A2) The length of time that the driver continues the visual recognition operation of the HUD display. Further, this time is managed as independent information for each type of display information actually displayed on the HUD.
(A3) A delay time from when the display of the visible information is started with the HUD until the driver actually starts visualizing the visible information.

The driving environment acquisition device 13 acquires information representing the state of the driving environment that is likely to affect the driving operation of the driver. As a specific example, it is assumed that the driving environment acquisition device 13 acquires environmental information such as the following (b1) to (b3).
(B1) The illuminance changing according to the weather and time zone difference, that is, the illuminance information in the driver's field of view during actual driving is acquired. For example, the illuminance actually measured using an illuminance sensor installed in a passenger compartment or the like is used. Alternatively, it is assumed that an estimated value of illuminance calculated based on weather information and the current time zone is used.
(B2) Information on the presence or absence of surrounding vehicles. For example, it is identified whether there is another vehicle around the host vehicle from the situation outside the host vehicle detected by a camera or various sensors mounted on the host vehicle. Or based on the information received from other vehicles etc. using advanced driving support system 16, the existence of other vehicles is grasped.
(B3) Information on presence / absence of travel on the traveling route and information on the amount. For example, in conjunction with the car navigation system, the route including the current position and the road that is currently running and the direction of travel are specified, and the same driver has traveled the relevant route in the past based on past driving history information. Know whether you have experience, number of trips, run frequency, etc.

  The HUD display output device 15 is a main body of a general HUD unit that realizes HUD display on a vehicle. For example, visible information displayed on a two-dimensional screen such as a liquid crystal display is projected in a predetermined direction using illumination light such as a backlight. The image of the light projected by the HUD unit is reflected on the surface of the window glass in front of the driver or the surface of the combiner existing in the vicinity thereof, for example, and travels in the direction of the driver's viewpoint. The driver can visually recognize the image of the light projected by the HUD unit as a virtual image formed at a position about several meters ahead of the window glass, for example, in a state of being superimposed on the scenery outside the vehicle as the background. Therefore, when using the HUD display, the driver can visually recognize the contents of the HUD display without moving the viewpoint greatly while keeping the normal driving posture facing forward.

  The HUD display control device 14 performs control for HUD display. That is, when an event that should be HUD-displayed occurs, information on an image to be HUD-displayed is generated and given to the HUD display output device 15, and an instruction to start or end the display is given.

  By the way, in the case of HUD display, since the background and the virtual image of the HUD display overlap each other, if the HUD display continues to appear in the driver's field of view for a long time, the displayed virtual image hinders driving. there is a possibility. For example, there are cases where it is difficult for the driver to visually recognize a virtual image in which objects such as pedestrians and bicycles existing in the background overlap. Further, even if the driver's visual recognition is not hindered, the driver may recognize the display of the virtual image that exists in the field of view for a long time as unnecessary and troublesome.

  Therefore, the HUD display control device 14 of the present embodiment also performs characteristic control in order to prevent the HUD display from adversely affecting the driving operation of the driver. This control will be described in detail later.

  The advanced driving support system 16 has various functions for supporting the driving operation of the driver. As one specific example, it is assumed that a function for guiding the driver to a preferable route on which the host vehicle should travel based on actual road conditions or the like is installed. That is, guidance display for instructing the driver to turn right or left of the vehicle at an appropriate position on the road is performed. When an event for performing such guidance display occurs, the advanced driving support system 16 notifies the HUD display control device 14 of information indicating the type of event and the content of the display. Therefore, the advanced driving support system 16 can guide the driver using the HUD display.

  The database DB can accumulate and hold information acquired by the driver attribute acquisition device 11, the driving tendency acquisition device 12, and the driving environment acquisition device 13, respectively. Information stored in the database DB is used when the HUD display control device 14 performs control.

<Relationship between HUD operation and driver's state in general control>
An example of the temporal relationship between the operation of the HUD system and the driver's state when performing general control is shown in FIG. That is, when the HUD display control device 14 shown in FIG. 1 does not perform characteristic control, HUD display is executed at the timing shown in FIG.

  In the example shown in FIG. 2, the HUD display indicating “right turn instruction” is started by the HUD system 10 at t02 immediately after time t01 in accordance with the event that occurred at time t01. Further, this HUD display ends at time t06. That is, during the time t02 to t06, the same HUD display is continuously output.

  On the other hand, since a delay time T01 occurs from a certain state (for example, notification sound output) until the driver actually recognizes the HUD display, the driver can display the HUD from time t03 after the delay time T01 from time t02. Start visual recognition. In addition, since a certain amount of time is required for the driver to actually read and grasp the contents of the visible information displayed on the HUD, the driver displays the HUD display at a time t04 after a while from the time t03. Visual recognition ends. That is, the driver grasps the display content between times t03 and t04.

  Further, the driver starts a driving operation such as a right turn at time t05 in accordance with the display content grasped between times t03 and t04. That is, the time between operations t04 and t05 is the delay time of the operation that occurs before the actual driving operation starts.

  Therefore, in the example shown in FIG. 2, the output HUD display is not used by the driver for each of the section T01 from time t02 to t03 and the section T02 from time t04 to t06. That is, if the output of HUD display can be stopped for each section T01, T02, the output section of HUD display can be minimized, so that it is possible to avoid a situation where HUD display hinders driving. However, the actual lengths and timings of the sections T01 and T02 are not constant. For this reason, it is difficult for the driver to grasp the contents of the HUD display unless the control is performed properly, and the wasteful HUD display continues even after the driver grasps the contents of the HUD display. It can be in a state of inhibition.

<Relationship between HUD operation and driver's condition in characteristic control>
FIG. 3 shows an example of the temporal relationship between the operation of the HUD system and the driver's state when performing characteristic control. That is, when the HUD display control device 14 shown in FIG. 1 performs characteristic control to be described later, the HUD display is executed at the timing shown in FIG.

  In the example illustrated in FIG. 3, an event occurs at time t11, and a time t12 after the start delay time Cstart has elapsed since the HUD display (for example, a right turn instruction) associated with the event is possible. Then, the HUD system 10 actually starts HUD display (for example, right turn instruction).

  The driver starts visually recognizing the HUD display started at time t12 from time t13 immediately thereafter. Further, the driver ends the visual recognition of the HUD display at time t14 after a while has elapsed from time t13. Furthermore, according to the contents of the visually recognized HUD display, the driver starts a right turn driving operation at time t15.

  The HUD system 10 controls the HUD display to continue for the length of the display duration Cduration corresponding to the section so that the driver can visually recognize the HUD display between times t13 and t14. That is, the HUD system 10 ends the HUD display at the timing of time t14 when the display duration Cduration has elapsed from time t13.

  Here, each of the start delay time Cstart and the display duration Cduration is automatically calculated by the HUD display control device 14 in consideration of the actual driver attribute information and driving tendency information of the individual driver and driving environment information. To decide. A specific determination method will be described later.

<Operation of HUD Display Control Device: Database Construction>
FIG. 4 shows an operation example of the HUD display control device 14 for constructing the database DB used when the HUD display control device 14 shown in FIG. 1 performs characteristic control. The operation example of FIG. 4 will be described below.

  The HUD display control device 14 acquires information on the driver attribute from the driver attribute acquisition device 11 in S01, registers this as driver attribute information i01 on the database DB, and stores and manages it. The driver attribute information i01 includes, for example, information on the age and driving history (such as the number of years) that are attributes of the individual driver who is currently driving the vehicle.

  The HUD display control device 14 acquires information on the current driving tendency of the driver from the driving tendency acquisition device 12 in S02, registers this as driving tendency information i02 on the database DB, and stores and manages it. This driving tendency information i02 represents an actual tendency such as a driver's acceleration / deceleration operation and steering wheel operation.

  Specifically, as illustrated in FIG. 4, for example, a delay time Tde1 from the end of the HUD display visual recognition to the start of the driving operation, the driver's visual operation duration Tdu divided for each type of display information, and the start of the HUD display The delay time Tde2 until the driver's visual start is included.

  In step S03, the HUD display control device 14 acquires information related to the current driver's driving environment from the driving environment acquisition device 13, registers this information as driving environment information i03 on the database DB, and stores and manages it. As shown in FIG. 4, the driving environment information i03 includes the illuminance of the driving environment, the presence / absence of other vehicles around the host vehicle, the number, the distance, etc. It can be configured to include the number of times, driving frequency, and the like.

  The HUD display control device 14 monitors a situation such as a driver guidance event notified from the advanced driving support system 16 in S04, generates an image for displaying HUD necessary information according to the generated event, and generates an HUD. The display output device 15 is instructed to start and end display at an appropriate timing. For example, when guiding a right turn, an image like a right-pointing arrow pattern is displayed in HUD. The timing of HUD display is controlled by the operation shown in FIG.

  The operation shown in FIG. 4 is repeatedly executed, for example, periodically. Therefore, driver attribute information i01, driving tendency information i02, and driving environment information i03 in various driving situations can be stored on the database DB.

  The HUD display control device 14 also knows the type of event that has occurred, the type of display information that is HUD-displayed for that event, the timing at which it was displayed, and the like. Therefore, for example, the driver's visual operation duration Tdu included in the driving tendency information i02 can be managed in a state of being distinguished for each type of display information. For example, the visual operation duration time Tdu with a small error can be grasped by distinguishing between a case where an easily readable pattern that can be read instantaneously is displayed in HUD and a case where visible information that takes time to read like a character message is displayed in HUD. can do.

<Operation of HUD Display Control Device: Display Control>
A specific example of display control in the operation of the HUD display control device 14 is shown in FIG. The operation of FIG. 5 will be described below.

  The HUD display control device 14 checks the presence / absence of an event occurrence in S11 for the driver guidance event notified from the advanced driving support system 16, and executes the processing after S12 when the event occurs.

  The HUD display control device 14 acquires various parameters according to the type of event detected in S11 in S12. That is, from the driver attribute information i01, the driving tendency information i02, and the driving environment information i03 that are included in the database DB shown in FIG. Get parameters that match the type of display information.

  The HUD display control device 14 determines the start delay time preset value Ps in S13 based on the driver attribute information acquired in S12. This preset value is an initial value of the start delay time, and the final start delay time is obtained by adding a correction of the driving tendency and the driving environment to this value.

  The HUD display control device 14 determines the driving tendency value Ds of the start delay time in S14 based on the driving tendency information acquired in S12. For example, the time length considering the delay times Tde1 and Tde2 in the driving tendency information i02 shown in FIG. 4 is assigned as the driving tendency value Ds of the start delay time.

  The HUD display control device 14 determines the driving environment value Es of the start delay time based on the driving environment information acquired in S12 in S15. For example, a value reflecting the influence of the illuminance of the driving environment, the presence / absence of a surrounding vehicle, the presence / absence of a driving history related to the traveling route, and the like is assigned to the driving environment value Es of the start delay time.

In S16, the HUD display control device 14 determines the start delay time Cstart by the following equation, for example.
Cstart = Ps + Ds + Es (1)

  The HUD display control device 14 determines the display duration preset value Pd in S17 based on the driver attribute information acquired in S12. This preset value is an initial value of the display continuation time, and the final display continuation time is obtained by further adding the driving tendency and the correction of the driving environment to this value.

  The HUD display control device 14 determines the driving tendency value Dd of the display duration time in S18 based on the driving tendency information acquired in S12. For example, in the visual recognition operation continuation time Tdu in the driving tendency information i02 shown in FIG. 4, a parameter corresponding to the type of display information of the current event is assigned as the driving tendency value Dd of the display continuation time.

  The HUD display control device 14 determines the driving environment value Ed for the display duration time in S19 based on the driving environment information acquired in S12. For example, a value reflecting the influence of the illuminance of the driving environment, the presence / absence of a surrounding vehicle, the presence / absence of a driving history related to the traveling route, and the like is assigned to the driving environment value Ed for the display duration.

In S20, the HUD display control device 14 determines the display duration Cduration by the following equation, for example.
Cduration = Pd + Dd + Ed (2)

  The HUD display control device 14 proceeds from S21 to S22 when the start delay time Cstart determined in S16 elapses after the HUD display for the event detected in S11 is enabled, and starts the HUD display. That is, an image of visible information necessary for guidance such as a right turn generated in response to an event is input to the HUD display output device 15 to instruct the start of HUD display.

  Further, after the HUD display control device 14 instructs the start of the HUD display, when the display duration Cduration determined in S20 elapses, the process proceeds from S23 to S24, and the HUD display ends. That is, the HUD display output device 15 instructs the HUD display output device 15 to delete the HUD display content currently displayed and end this display.

<Specific examples of each time>
Specific examples of numerical values and determination factors of the parameters determined in steps S13 to S15 and S17 to S19 shown in FIG. 5 are shown below.

Ps: +0.5 [sec]
Ds: +0.5 [sec]
Determinant of Ds: The corresponding driver tends to immediately check the HUD display.
Es: -1.0 [sec]
Determinant of Es: Since there is no traveling experience on the route that is currently traveling, it is necessary to secure a sufficient display continuation time.
Pd: +1.5 [sec]
Dd: -0.5 [sec]
Determinant of Dd: The corresponding driver tends to immediately check the HUD display.
Ed (1): +1.5 [sec]
Determinant of Ed (1): Since there is no travel experience on the currently traveling route, it is necessary to secure a sufficient display duration.
Ed (2): +1.0 [sec]
Determinant of Ed (2): Since the weather is good and the sunlight is strong, it is necessary to ensure a sufficient viewing time for HUD display.

  The parameters of the start delay time preset value Ps and the display duration preset value Pd that are determined according to the driver attribute information corresponding to age and driving history are determined as follows. For example, on the basis of a certain age range, a delay time (also negative) and duration value are determined in advance and registered in a table or the like for each predetermined range above or below that range. A constant specified based on values such as age from this table is adopted as the start delay time preset value Ps or the display duration preset value Pd.

  Note that it is assumed that the driver attribute information i01 and the driving environment information i03 in FIG. 4 that take into account the influence when determining the start delay time Cstart and the display duration Cduration in S16 and S20 of FIG. 5 are considered. This is an example of a parameter, and another parameter may be adopted depending on the situation.

<Advantages of HUD system 10>
In the HUD system 10 shown in FIG. 1, for example, the display duration Cduration shown in FIG. 3 is automatically adjusted to reflect the actual driving tendency of the driver. Therefore, for example, the interval T02 shown in FIG. 2 can be reduced. In other words, the HUD display section can be prevented from being unnecessarily long for the driver, and the HUD virtual image display that appears superimposed on the background in the driver's field of view visually recognizes pedestrians, bicycles, and the like. It can be prevented from becoming a hindrance.

  Further, since the length of the display duration Cduration is automatically adjusted to reflect the actual driving tendency of the driver, a state occurs in which the driver cannot recognize the contents of the HUD display because the HUD display time is too short. Can also be avoided.

  In particular, when the driving tendency information is managed separately for each type of display information, such as the visual operation duration time Tdu shown in FIG. 4, it is more appropriate for each driver for each piece of information to be displayed on the HUD. It is easy to effectively perform HUD display at a proper timing.

Here, the characteristics of the vehicle display projection apparatus according to the embodiment of the present invention described above are briefly summarized and listed in the following [1] to [5], respectively.
[1] A display output unit (HUD display output device 15) that projects visible information in or near the driver's field of view;
A driving tendency acquisition unit (S18) for acquiring information (driving tendency information i02) representing the personal driving tendency of the driver;
A display information generation unit (HUD display control device 14) that generates corresponding display information in accordance with the occurrence of a predetermined event;
With the occurrence of the event, the display information is projected on the display output unit as the visible information, and at least the duration of the display of the visible information (display duration Cduration) is set to the driving tendency. A display timing adjustment unit (S20) that adjusts according to the information,
A vehicle display projection apparatus (HUD system 10).

[2] The driving tendency acquisition unit manages the information of the driving tendency to be acquired (visual operation duration Tdu) in a state associated with the type of the display information (see FIG. 4).
The display timing adjustment unit (S18) adjusts the length of the duration based on the driving tendency information associated with the type of the display information to be output.
The vehicle display projection apparatus according to the above [1].

[3] A driver attribute acquisition unit (S17) that acquires information representing a personal driver attribute of the driver,
The display timing adjustment unit adjusts the duration of the duration in a state where the driver attribute is taken into consideration (S20),
The vehicle display projection apparatus according to the above [1] or [2].

[4] A driving environment acquisition unit (S19) that acquires information representing the current driving environment state that affects the driving of the driver,
The display timing adjustment unit (S20) adjusts the length of the duration in consideration of the state of the operating environment.
The vehicle display projection apparatus according to any one of [1] to [3].

[5] The driving environment acquisition unit acquires, as the driving environment state, presence / absence of a driving history of a road including at least a current point of the vehicle, or driving frequency information (driving environment information i03).
The vehicle display projection apparatus according to the above [4].

DESCRIPTION OF SYMBOLS 10 HUD system 11 Driver attribute acquisition apparatus 12 Driving tendency acquisition apparatus 13 Driving environment acquisition apparatus 14 HUD display control apparatus 15 HUD display output apparatus 16 Advanced driving assistance system (ADAS)
DB database i01 Driver attribute information i02 Driving tendency information i03 Driving environment information Ps Start delay time preset value Pd Display duration preset value Ds Driving trend value of start delay time Dd Driving trend value of display duration Es Driving environment of start delay time Value Ed Operating environment value for display duration Cstart start delay time Cduration display duration

Claims (5)

A display output unit that projects visible information in or near the driver's field of view;
A driving tendency acquisition unit for acquiring information representing a personal driving tendency of the driver;
A display information generation unit that generates corresponding display information in accordance with the occurrence of a predetermined event;
Along with the occurrence of the event, the display information is projected on the display output unit as the visible information, and at least the duration of the display time of the visible information is adjusted according to the driving tendency information. A display timing adjustment unit for
A vehicle display projection apparatus comprising: The driving tendency acquisition unit manages information of the driving tendency to be acquired in a state associated with the type of the display information,
The display timing adjustment unit adjusts the length of the duration based on the driving tendency information associated with the type of the display information to be output.
The vehicle display projection apparatus according to claim 1. A driver attribute acquisition unit that acquires information representing the driver's personal driver attributes;
The display timing adjustment unit adjusts the length of the duration in a state where the driver attribute is taken into account.
The vehicular display projection device according to claim 1. A driving environment acquisition unit that acquires information representing the current driving environment state affecting the driving of the driver;
The display timing adjustment unit adjusts the length of the duration in consideration of the state of the driving environment.
The vehicle display projection device according to any one of claims 1 to 3. The driving environment acquisition unit acquires, as the state of the driving environment, the presence or absence of a driving history of a road including at least the current location of the vehicle, or information on the driving frequency,
The vehicle display projection apparatus according to claim 4.

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