JP2020138609A - Display control device for vehicle, display control method for vehicle, and display control program for vehicle - Google Patents

Abstract

To provide a display control device for a vehicle, a display control method for the vehicle, a display control program for the vehicle configured to make it easy to recognize whether virtual image content projected on a projection part is superposed content or non-superposed content.SOLUTION: A display control device 20 for a vehicle which controls a head-up display which projects virtual image content representing related travel support related information in travel support of the vehicle on a projection part comprises: a superposed content projection part 51 which projects superposed content which is the virtual image content on the projection part to be superposed on an object included in the foreground of the vehicle; a non-superposed content projection part 52 which projects non-superposed content which is the virtual image content on the projection part not to be superposed on the object included in the foreground of the vehicle; and a differentiation content projection part 53 which projects differentiation content for differentiating the superposed content from the non-superposed content to be projected on the projection part on the projection part.SELECTED DRAWING: Figure 3

Description

The present disclosure relates to a vehicle display control device, a vehicle display control method, and a vehicle display control program.

Conventionally, there has been known a head-up display that projects virtual image contents representing information related to vehicle route guidance onto a projection unit such as a windshield of a vehicle (see, for example, Patent Document 1).

International Publication No. 2015/118859

In the technical field of this type of head display, not only the arrow mark indicating the traveling direction of the vehicle is projected so as to be superimposed on the road included in the foreground of the vehicle, but also the road included in the foreground of the vehicle is projected. It is conceivable to project, for example, an icon marked "stop" or an icon indicating a pause line or the like at a position where they do not overlap. Here, the arrow mark or the like indicating the traveling direction of the vehicle is virtual image content projected so as to be superimposed on an object included in the foreground of the vehicle, for example, a road existing in front of the traveling direction of the vehicle, and is combined with the superimposed content. Can be defined. On the other hand, for example, an icon written as "stop" or an icon indicating a pause line should not be superimposed on an object included in the foreground of the vehicle, for example, a pause line existing in front of the vehicle in the traveling direction. It is a virtual image content that is projected and can be defined as non-superimposed content.

In this way, in the technical field of head display, it is divided into two types of virtual image contents, superposed content and non-superimposed content, based on whether or not the content is projected so as to be superimposed on the object included in the foreground of the vehicle. Can be done. Then, in the conventional technique, these superposed contents and non-superimposed contents are projected onto the projection unit while being appropriately switched without any particular distinction. Therefore, it is difficult for the user to understand whether the virtual image content projected on the projection unit is the superimposed content or the non-superimposed content, and therefore, the information represented by the virtual image content may not be accurately conveyed to the user. ..

Therefore, the present disclosure provides a display control device for a vehicle, a display control method for a vehicle, and a display control device for a vehicle, which makes it easy to recognize whether the virtual image content projected on the projection unit is the superimposed content or the non-superimposed content. A display control program for a vehicle is provided.

The vehicle display control device according to the present disclosure is a vehicle display control device 20 that controls a head-up display 230 that projects virtual image contents representing driving support-related information related to vehicle driving support onto a projection unit 10. The superimposed content projection unit 51 that projects the superimposed content that is the virtual image content onto the projection unit so as to superimpose it on the object included in the foreground of the vehicle, and the non-superimposed content that is the virtual image content are displayed on the foreground of the vehicle. The non-superimposed content projection unit 52 that is projected onto the projection unit without being superimposed on the object included in the projection unit, and the content for distinguishing between the superposed content and the non-superimposed content projected on the projection unit are projected. The content projection unit 53 for distinction to be projected onto the unit is provided.

The vehicle display control method according to the present disclosure is a vehicle display control method for controlling a head-up display 230 that projects virtual image content representing driving support-related information related to vehicle driving support onto a projection unit 10. The superposed content projection process of projecting the superposed content, which is the virtual image content, on the projection unit so as to superimpose the superposed content on the object included in the foreground of the vehicle, and the non-superimposed content, which is the virtual image content, are included in the foreground of the vehicle. The non-superimposed content projection process that projects the non-superimposed content onto the projection unit without superimposing it on the target, and the distinguishing content for distinguishing the superposed content and the non-superimposed content projected on the projection unit are projected onto the projection unit. Includes content projection processing for distinction.

The vehicle display control program according to the present disclosure functions as a vehicle display control device that controls a head-up display 230 that projects a virtual image content representing driving support-related information related to vehicle driving support onto a projection unit 10. It is a display control program for a vehicle for making the virtual image content, and a superposed content projection process of superimposing the superposed content which is the virtual image content on an object included in the foreground of the vehicle and projecting the superposed content onto the projection unit. The non-superimposed content projection process of projecting the non-superimposed content on the projection unit without superimposing the non-superimposition content on the object included in the foreground of the vehicle, and the superimposition content and the non-superimposition content projected on the projection unit. The computer is made to execute the distinguishing content projection process of projecting the distinguishing content on the projection unit.

According to the present disclosure, based on the distinguishing content projected on the projection unit, it is possible to easily recognize whether the imaginary image content projected on the projection unit is the superimposed content or the non-superimposed content, and the imaginary image content can be easily recognized. The information represented by can be conveyed to the user more accurately.

The figure which shows the structure example of the vehicle system which concerns on this embodiment schematicly. The figure which shows typically the example of mounting the head-up display which concerns on this embodiment on a vehicle The figure which shows the structural example of the control system of the display control device for a vehicle which concerns on this Embodiment schematicly. The figure which shows the projection example of the virtual image content which concerns on this embodiment (the 1) The figure which shows the projection example of the virtual image content which concerns on this embodiment (2) The figure which shows the projection example of the virtual image content which concerns on this embodiment (3) The figure which shows the projection example of the virtual image content which concerns on this embodiment (4) The figure which shows the projection example of the virtual image content which concerns on this embodiment (the 5) The figure which shows the projection example of the virtual image content which concerns on this embodiment (6) The figure which shows the projection example of the virtual image content which concerns on this embodiment (7)

Hereinafter, an embodiment according to the present disclosure will be described with reference to the drawings. The vehicle system 1 illustrated in FIG. 1 is used for a moving body such as a vehicle traveling on a road, and includes an HMI system 2 (HMI: Human Machine Interface) and an ADAS locator 3 (ADAS: Advanced Driver Assistance Systems). ), Peripheral monitoring sensor 4, vehicle control ECU 5 (ECU: Electronic Control Unit), driving support ECU 6 (ECU: Electronic Control Unit), and the like. The HMI system 2, the ADAS locator 3, the peripheral monitoring sensor 4, the vehicle control ECU 5, and the driving support ECU 6 are connected to, for example, an in-vehicle LAN (LAN: Local Area Network) mounted on the vehicle.

The ADAS locator 3 includes a GNSS receiver 30 (GNSS: Global Navigation Satellite System), an inertial sensor 31, a map database 32, and the like. Hereinafter, the map database 32 is referred to as a map DB 32. The GNSS receiver 30 receives positioning signals from a plurality of artificial satellites. The inertial sensor 31 includes, for example, a gyro sensor and an acceleration sensor. The ADAS locator 3 sequentially positions the vehicle position of its own vehicle on which the vehicle system 1 is mounted by combining the positioning signal received by the GNSS receiver 30 and the sensing result by the inertial sensor 31. Then, the ADAS locator 3 outputs the positioned vehicle position via the in-vehicle LAN. In this case, the vehicle position is represented by a coordinate system consisting of latitude and longitude. In this coordinate system, for example, the X-axis indicates longitude and the Y-axis indicates latitude. It should be noted that the positioning of the vehicle position is various as long as the position of the own vehicle can be specified, for example, based on the information of the mileage obtained based on the sensing result by the vehicle speed sensor mounted on the own vehicle. The configuration of can be adopted.

The map DB 32 is composed of, for example, a non-volatile memory, and stores map data including various data such as link data, node data, and road shape data. The link data includes link identification data that identifies the links that make up the road on the map, link length data that indicates the length of the link, link orientation data that indicates the orientation of the link, and link travel time data that indicates the time required to travel the link. , Includes various data such as node coordinate data indicating the coordinates of the nodes constituting the start point and end point of the link, and link attribute data indicating the attributes of the road. The node data includes node identification data that identifies a node existing on the map, node coordinate data that indicates the coordinates of the node, node name data that indicates the name of the node, for example, node type data that indicates the type of node such as an intersection, and node data. Includes various data such as connection link data that identifies the link to connect to. Road shape data is data indicating the shape of a road existing on a map. The road shape data includes data indicating the altitude of the road, the cross slope of the road, the longitudinal slope of the road, and the like.

The map data may be acquired from the outside of the own vehicle, for example, via a communication module mounted on the vehicle. Further, as the map data, three-dimensional map data including a point cloud such as a feature point of the road shape and a feature point of a structure existing on the map may be used. When using 3D map data, the ADAS locator 3 uses the 3D map data and the sensing result of LIDAR (Light Detection and Ranging / Laser Imaging Detection and Ranging) to detect the point cloud, and the like. It may be configured to specify the vehicle position of.

The peripheral monitoring sensor 4 is a sensor that monitors the surrounding environment of the own vehicle, and in this case, it is provided as an autonomous sensor that operates autonomously. The peripheral monitoring sensor 4 is, for example, a dynamic target moving around the own vehicle such as a human being such as a pedestrian, an animal other than the human being, or a vehicle other than the own vehicle, a falling object existing on the road, or a road. Detects objects that exist around the vehicle, such as guardrails, curbs, trees, and other static targets that are stationary around the vehicle. In addition, the peripheral monitoring sensor 4 can detect road markings such as traveling lane markings, stop lines, and pedestrian crossings provided on the roads around the own vehicle, for example, instruction markings such as "stop". .. Then, the peripheral monitoring sensor 4 sequentially outputs the obtained sensing data to the in-vehicle LAN. The peripheral monitoring sensor 4 is composed of, for example, a peripheral monitoring camera that captures a predetermined range around the own vehicle, a millimeter wave radar that outputs a search wave in a predetermined range around the own vehicle, a sonar, an exploration wave sensor such as LIDAR, and the like. ..

The exploration wave sensor sequentially outputs the scanning result based on the received signal obtained by receiving the reflected wave reflected by the object to the in-vehicle LAN as sensing data. More specifically, the exploration wave sensor measures the distance from the exploration wave sensor to the object based on the time from transmitting the exploration wave to receiving the reflected wave reflected by the object. The exploration wave sensor also measures the orientation of the object with respect to the exploration wave sensor based on the angle at which the reflected wave is received. The azimuth can be represented by, for example, an azimuth, for example, clockwise can be represented as a positive azimuth and counterclockwise can be represented as a negative azimuth with respect to the front direction of the own vehicle.

In this case, the peripheral monitoring sensor 4 includes at least a front camera 41 having a predetermined range in front of the own vehicle as an imaging range, and a millimeter wave radar 42 having a predetermined range in front of the own vehicle as an exploration range. It has become. The front camera 41 may be provided, for example, on the rear mirror of the own vehicle, the upper surface of the instrument panel, or the like. Further, the millimeter wave radar 42 may be provided, for example, on the front grill of the own vehicle, the front bumper, or the like. The millimeter wave radar 42 transmits millimeter waves or quasi-millimeter waves while scanning the sensing range in front of the own vehicle, and receives the reflected waves reflected by the object to reach the object with respect to the millimeter wave radar 42. Measure distance and orientation. The sensing range of the front camera 41 and the sensing range of the millimeter wave radar 42 may or may not be matched. Further, at least a part of the sensing range of the front camera 41 and the sensing range of the millimeter wave radar 42 may or may not overlap. Further, a plurality of peripheral monitoring sensors 4 may be provided at different locations of the own vehicle.

The vehicle control ECU 5 is, for example, an electronic control unit for controlling acceleration and deceleration of the own vehicle, steering control, braking control, and the like. The vehicle control ECU 5 includes a power unit control ECU that controls acceleration and deceleration of the own vehicle, a steering control ECU that controls the steering of the own vehicle, a brake control ECU that controls braking of the own vehicle, and the like. The vehicle control ECU 5 is based on detection signals output from various sensors such as an accelerator position sensor, a brake pedal force sensor, a steering angle sensor, and a wheel speed sensor mounted on the own vehicle, for example, an electronically controlled throttle, a brake actuator, and the like. It outputs control signals to various drive control system devices such as EPS motors (EPS: Electric Power Steering). Further, the vehicle control ECU 5 can output detection signals obtained from various sensors to the in-vehicle LAN.

The driving support ECU 6 supports the driving operation by the driver by cooperating with the vehicle control ECU 5, for example. The support provided by the driving support ECU 6 also includes an automatic driving function that automatically controls the running of the own vehicle. The driving support ECU 6 recognizes the driving environment of the own vehicle based on the vehicle position of the own vehicle acquired from the ADAS locator 3, the map data stored in the map DB 32, the sensing data acquired from the peripheral monitoring sensor 4, and the like. More specifically, the driving support ECU 6 recognizes the position, shape, moving state, etc. of an object existing in the vicinity of the own vehicle based on, for example, sensing data acquired from the peripheral monitoring sensor 4, or the own vehicle. It is possible to recognize the position, size, contents, etc. of road markings that exist in the vicinity of. Then, the driving support ECU 6 combines the information recognized in this way with information such as map data and the vehicle position of the own vehicle to create a virtual space that reproduces the actual driving environment around the own vehicle in three dimensions. It is possible to generate.

Further, the driving support ECU 6 generates a driving plan for automatically driving the own vehicle by the automatic driving function based on the recognized driving environment. As a travel plan, a long- to medium-term travel plan and a short-term travel plan can be generated. In a short-term driving plan, the generated virtual space around the own vehicle is used, for example, acceleration / deceleration control for maintaining the target inter-vehicle distance from the preceding vehicle, steering control for lane tracking and lane change, and collision avoidance. Braking control for this is determined. In the long- to medium-term driving plan, the recommended route and driving schedule for the vehicle to reach the destination are determined. The driving support ECU 6 may generate only one of the short-term running plan and the long- and medium-term running plan, for example, the short-term running plan.

As an example of the automatic driving function executed by the driving support ECU 6, for example, an ACC function that controls the traveling speed of the own vehicle so as to maintain the target inter-vehicle distance from the preceding vehicle by adjusting the driving force and the braking force ( There is ACC: Adaptive Cruise Control). In addition, there is an AEB function (AEB: Autonomous Emergency Braking) that forcibly decelerates the own vehicle by generating a braking force based on the sensing result in front of the own vehicle. The ACC function and the AEB function are merely examples, and the driving support ECU 6 may be configured to have other functions.

The HMI system 2 includes an HCU 20 (Human Machine Interface Control Unit), an operating device 21, a DSM 22 (Driver Status Monitor), a display device 23, and the like. The HMI system 2 accepts an input operation by a driver who is a user of the own vehicle, and presents various information to the driver of the own vehicle. The operation device 21 includes various switches operated by the driver of the own vehicle. The operation device 21 is used to make various settings and the like. Specifically, the operation device 21 is composed of a steering switch or the like provided on the spokes of the steering of the own vehicle.

The DSM 22 includes, for example, a light source that generates near-infrared light, a near-infrared light camera that detects near-infrared light, a control unit that controls these, and the like. The DSM 22 is arranged on, for example, on the steering column cover or the upper surface of the instrument panel in a state where the near-infrared light camera is directed toward the driver's seat of the own vehicle. The DSM 22 uses a near-infrared light camera to image the head of the driver irradiated with near-infrared light from a near-infrared light source. Then, the image captured by the near-infrared light camera is image-analyzed by a control unit (not shown). For example, this control unit extracts the driver's eyes from the captured image and detects the position of the driver's eyes with respect to the reference position set in the vehicle interior of the own vehicle as the viewpoint position. As the reference position, for example, the installation position of the near-infrared light camera can be set. Then, the DSM 22 outputs information indicating the detected viewpoint position of the driver to the HCU 20. Further, the control unit can identify or infer the driver's line of sight, that is, the direction in which the driver's eye is heading, by performing image analysis of the image captured by the near-infrared light camera. Then, the DSM 22 outputs the line-of-sight information indicating the direction of the line-of-sight of the specified or estimated driver to the HCU 20.

The display device 23 is configured as a head-up display 230 (HUD: Head Up Display). Hereinafter, the head-up display 230 will be referred to as a HUD 230. As illustrated in FIG. 2, the HUD 230 is provided, for example, on the instrument panel 12 of the own vehicle. The HUD 230 forms a display image based on the image data output from the HCU 20 by, for example, a liquid crystal type or a scanning type projector 231. The display image is, for example, an image showing information related to vehicle route guidance.

The HUD 230 projects the display image formed by the projector 231 onto the front windshield 10, which is an example of the projection unit, via an optical system 232 having, for example, a concave mirror. The front windshield 10 is provided with a projection area R, and the display image formed by the projector 231 is projected in the projection area R. The projection area R is provided so as to be located in front of the driver's seat, particularly in front of the driver seated in the driver's seat.

The luminous flux of the display image projected on the front windshield 10 is perceived or visually recognized by the driver seated in the driver's seat. Further, the front windshield 10 is made of, for example, a translucent glass material, and the scenery, that is, the luminous flux in the foreground existing in front of the own vehicle is also perceived, that is, visually recognized by the driver seated in the driver's seat. To. As a result, the driver can visually recognize the virtual image of the display image formed in front of the front windshield 10 in a state of being superimposed on a part of the foreground as the virtual image content 100. That is, the HUD 230 realizes so-called AR display (AR: Augmented Reality) by superimposing the virtual image content 100 on the foreground of the own vehicle. The virtual image content 100 is at least content that visually represents information related to the traveling support of the own vehicle, that is, traveling support-related information. Examples of the driving support-related information include route guidance-related information indicating the traveling direction of the own vehicle in the guidance route, automatic driving-related information indicating the course when the own vehicle is automatically controlled, and the lane in which the own vehicle travels. Lane information to be shown, curve notification information to notify the curve existing in front of the traveling direction of the own vehicle, pedestrian information to inform that there is a pedestrian in front of the traveling direction of the own vehicle, and a stop line in front of the traveling direction of the own vehicle. Various information can be applied as long as it is useful information for driving support of the own vehicle, such as stop line information for notifying the existence. Then, for example, as the virtual image content 100 representing pedestrian information, the superimposed content is content that is superimposed and displayed on an intersection in front of the traveling direction of the own vehicle or on a pedestrian or a pedestrian's periphery existing on a road surface, and is a non-superimposed content. Is content such as an icon indicating the position of a pedestrian in a bird's-eye view image showing the composition of an intersection or a road surface in front of the vehicle in the traveling direction.

The projection unit on which the HUD 230 projects the virtual image content 100 is not limited to the front windshield 10, and may be configured by, for example, a translucent combiner. Further, the display device 23 may be configured by, for example, a combination meter, CUD (Center Information Display), or the like.

The HCU 20 is mainly composed of a microcomputer including, for example, a processor, a volatile memory, a non-volatile memory, an input / output circuit, a bus connecting these, and the like. The HUC20 is connected to the HUD230 and the in-vehicle LAN. The HUC 20 is an example of the display control device for a vehicle according to the present disclosure, and controls the display by the HUD 230 by executing a control program stored in a storage medium such as a non-volatile memory. This control program includes a vehicle display control program according to the present disclosure. Further, the HUC 20 performs the vehicle display control method according to the present disclosure by executing the control program. The memory is, for example, a non-transitory tangible storage medium that stores programs and data that can be read by a computer non-temporarily. Further, the non-transitional substantive storage medium can be realized by, for example, a semiconductor memory or a magnetic disk.

Next, a configuration example of the HCU 20 regarding the control of the display by the HUD 230 will be described in more detail. As illustrated in FIG. 3, the HCU 20 virtually realizes the superposed content projection unit 51, the non-superimposed content projection unit 52, and the distinction content projection unit 53 by executing the vehicle display control program. In the HCU 20, these processing units may be configured by hardware, or may be configured by a combination of software and hardware.

The superimposed content projection unit 51 executes the superimposed content projection process. The superimposed content projection process is a process of projecting the superimposed content 101, which is an example of the virtual image content 100, into the projection area R of the front windshield 10 so as to be superimposed on the object included in the foreground of the own vehicle. The superimposed content 101 is virtual image content 100 that is projected by being positively attached to an object included in the foreground of the own vehicle, and is positively attached to an object included in the foreground of the own vehicle. It is different from the non-projected virtual image content 100, for example, the non-superimposed content 102 when the non-superimposed content 102 described later is accidentally projected at a position where it is accidentally projected on an object included in the foreground of the own vehicle. Specifically, the superimposed content 101 is an object included in the foreground of the own vehicle, for example, the virtual image content 100 projected along the road, the depth direction of the front windshield 10 as seen from the driver, that is, the own vehicle. The movement of the own vehicle is projected by superimposing the virtual image content 100 extending forward in the traveling direction of the vehicle, an object included in the foreground of the own vehicle, for example, a stop line actually existing in front of the traveling direction of the own vehicle. Virtual image content 100 maintained regardless of, virtual image content 100 in which the positional relationship between the driver's viewpoint position, the actual actual view in front of the own vehicle, and the projected position in the projection area R is maintained in a predetermined relationship, etc. Is.

The non-superimposed content projection unit 52 executes the non-superimposed content projection process. The non-superimposed content projection process is a process of projecting the non-superimposed content 102, which is an example of the virtual image content 100, into the projection area R of the front windshield 10 without superimposing it on the object included in the foreground of the own vehicle. The non-superimposed content 102 is a virtual image content 100 that is not projected by being positively attached to an object included in the foreground of the own vehicle, but is accidentally superimposed on the object included in the foreground of the own vehicle. It is a virtual image content 100 that may be projected by.

The distinction content projection unit 53 executes the distinction content projection process. The distinction content projection process is a process of projecting the distinction content 103 for distinguishing the superposed content 101 and the non-superimposed content 102 projected on the front windshield 10 onto the projection area R of the front windshield 10.

Next, some examples of the display form of the virtual image content 100 by the vehicle display control device 20 according to the present disclosure will be described.

The display form example illustrated in FIG. 4 is an example of the display form of the superimposed content 101 when the own vehicle changes lanes, for example. In this case, in the projection area R of the front windshield 10, an arrow indicating the traveling direction of the own vehicle so as to be superimposed on the object included in the foreground of the own vehicle, in this case, the road in front of the own vehicle that actually exists. The mark M1 is displayed as the superimposed content 101. In this case, the distinguishing content 103 is not attached to the arrow mark M1 which is an example of the superimposed content 101.

The display form example illustrated in FIG. 5 is an example of the display form of the non-superimposed content 102 when the own vehicle changes lanes, for example. In this case, in the projection area R of the front windshield 10, an arrow indicating the traveling direction of the own vehicle so as not to be superimposed on the object included in the foreground of the own vehicle, in this case, the road in front of the own vehicle that actually exists. The mark M2 is displayed as the non-superimposed content 102. That is, the arrow mark M2 is projected at a position irrelevant to the object included in the foreground of the own vehicle. In this case, the arrow mark M2, which is an example of the non-superimposed content 102, is accompanied by a lane mark M3, which simply indicates a plurality of lanes provided on the road, as an example of the distinguishing content 103. Further, the arrow mark M2 and the lane mark M3 are projected on the end portion in the projection area R, in this case, the lower end portion of the central portion. Further, the arrow mark M2 and the lane mark M3 are simultaneously projected in the projection area R.

The display form illustrated in FIG. 4 and the display form illustrated in FIG. 5 can be displayed on the front windshield 10 while being appropriately switched. That is, for example, when the superimposed display mode is selected, the virtual image content 100 is displayed by the display form illustrated in FIG. 4, and when the non-superimposed mode is selected, the virtual image is displayed by the display form illustrated in FIG. Content 100 is displayed.

Then, in the display modes illustrated in FIGS. 4 and 5, the projection position of the arrow mark M1 which is an example of the superimposed content 101 and the arrow which is an example of the non-superimposed content 102 in the projection area R of the front windshield 10 It is preferable to set the projected positions of the mark M2 and the lane mark M3, which is an example of the distinguishing content 103, so as to be different from each other. The direction of travel of the own vehicle, that is, the direction in which the own vehicle changes lanes can be determined based on, for example, the operating state of the blinker of the own vehicle, the operating state of the steering wheel, and the like.

The display form example illustrated in FIG. 6 is an example of the display form of the superimposed content 101 when the recommended lane is presented to the own vehicle, for example. In this case, in the projection area R of the front windshield 10, an arrow indicating the recommended lane of the own vehicle so as to be superimposed on the object included in the foreground of the own vehicle, in this case, the road in front of the own vehicle that actually exists. The mark M4 is displayed as the superimposed content 101. In this case, the arrow mark M4, which is an example of the superimposed content 101, is not accompanied by the distinguishing content 103.

The display form example illustrated in FIG. 7 is an example of the display form of the non-superimposed content 102 when the recommended lane is presented to the own vehicle, for example. In this case, in the projection area R of the front windshield 10, it is recommended to represent the recommended lane of the own vehicle by not superimposing it on the object included in the foreground of the own vehicle, in this case, the road in front of the own vehicle that actually exists. The mark M5 is displayed as the non-superimposed content 102. That is, the recommended mark M5 is projected at a position irrelevant to the object included in the foreground of the own vehicle. In this case, the recommended mark M5, which is an example of the non-superimposed content 102, is accompanied by a lane mark M6, which simply indicates a plurality of lanes provided on the road, as an example of the distinguishing content 103. Further, the recommended mark M5 and the lane mark M6 are projected on the end portion in the projection area R, in this case, the lower end portion of the central portion. Further, the recommended mark M5 and the lane mark M6 are simultaneously projected in the projection area R.

The display form illustrated in FIG. 6 and the display form illustrated in FIG. 7 are displayed on the front windshield 10 while being appropriately switched. That is, for example, when the superimposed display mode is selected, the virtual image content 100 is displayed by the display form illustrated in FIG. 6, and when the non-superimposed mode is selected, the virtual image is displayed by the display form illustrated in FIG. Content 100 is displayed.

Then, in the display modes illustrated in FIGS. 6 and 7, the projection position of the arrow mark M4, which is an example of the superimposed content 101, and the recommended example of the non-superimposed content 102 in the projection area R of the front windshield 10. It is preferable to set the projected positions of the mark M5 and the lane mark M6, which is an example of the distinguishing content 103, so as to be different from each other. The recommended lane of the own vehicle can be determined based on, for example, the recommended route set by the navigation device of the own vehicle.

The display form example illustrated in FIG. 8 is an example of the display form of the superimposed content 101 when presenting an icon relating to the running of the own vehicle, for example. In this case, in the projection area R of the front windshield 10, an icon indicating the pause line is superimposed on the object included in the foreground of the own vehicle, in this case, the pause line in front of the own vehicle that actually exists. The mark M7 is displayed as the superimposed content 101. In this case, the icon mark M7, which is an example of the superimposed content 101, is not accompanied by the distinguishing content 103.

The display form example illustrated in FIG. 9 is an example of the display form of the non-superimposed content 102 when, for example, an icon relating to the traveling of the own vehicle is presented. In this case, in the projection area R of the front windshield 10, the object included in the foreground of the own vehicle, in this case, the instruction sign marked "stop" in front of the own vehicle, which actually exists, is not superimposed. The icon mark M8 described as "stop" is displayed as the non-superimposed content 102. That is, the icon mark M8 is projected at a position irrelevant to the object included in the foreground of the own vehicle. In this case, the icon mark M8, which is an example of the non-superimposed content 102, is not accompanied by the distinguishing content 103. Further, the icon mark M8 is projected on the end portion in the projection area R, in this case, the lower right end portion.

The display form example illustrated in FIG. 10 is an example of the arrow mark M1 which is an example of the superimposed content 101 illustrated in FIG. 4, the arrow mark M2 which is an example of the non-superimposed content 102 illustrated in FIG. 5, and an example of the distinguishing content 103. This is an example of a display mode in which the lane mark M3 is simultaneously projected in the projection area R of the front windshield 10. In this case, the arrow mark M1 which is an example of the superimposed content 101 is projected so as to be superimposed on the object included in the foreground of the own vehicle, in this case, the road in front of the own vehicle which actually exists. On the other hand, the arrow mark M2, which is an example of the non-superimposed content 102, and the lane mark M3, which is an example of the distinguishing content 103, are objects included in the foreground of the own vehicle, in this case, in front of the own vehicle that actually exists. It is projected on the end portion in the projection area R, in this case, the upper right end portion so as not to be superimposed on the road and not to overlap with the arrow mark M1 which is an example of the superimposed content 101. The non-superimposed content 102 may be displayed on a display unit other than the HUD 230 existing in the vehicle interior of the own vehicle, for example, a display screen of a navigation device, a meter display, an electronic mirror, or the like.

According to the present embodiment, the virtual image content 100 projected in the projection area R of the front windshield 10 is the superimposed content 101 based on the distinction content 103 projected in the projection area R of the front windshield 10. It is possible to easily recognize whether the content is the non-superimposed content 102 or the non-superposed content 102. Therefore, the information represented by the virtual image content 100 can be more accurately transmitted to the user.

Further, according to the present embodiment, the projection position on which the superimposed content 101 is projected and the projection position on which the non-superimposed content 102 is projected are different in the projection area R of the front windshield 10. As a result, the distinction between the superposed content 101 and the non-superimposed content 102 can be determined from the projected position, and the display mode of the virtual image content 100 that is easier for the user to recognize can be realized.

Further, the projection positions of the non-superimposed content 102 and the distinguishing content 103 in the projection area R of the front windshield 10 are preferably different from the projection position of the superimposed content 101, and more preferably in the projection area R. It should be the end. Thereby, the distinction between the superposed content 101 and the non-superimposed content 102 and the distinguishing content 103 can be further clarified, and the display mode of the virtual image content 100 that is easier for the user to recognize can be realized.

Further, by simultaneously projecting the superposed content 101, the non-superimposed content 102, and the distinguishing content 103 into the projection area R of the front windshield 10, the virtual image content 100 that can be provided to the user is simultaneously presented. It is possible to increase the amount of information given to the user. In this case, by attaching the distinguishing content 103 to either the superposed content 101 or the non-superimposed content 102, it is possible to clearly distinguish between the superposed content 101 and the non-superimposed content 102.

It should be noted that the present disclosure is not limited to the above-described embodiment, and changes and extensions can be appropriately made without departing from the gist thereof.

For example, when the arrow mark is projected as the virtual image content 100, the shape, size, thickness, and the like of the arrow mark can be appropriately changed and set. In this case, the user may have different shapes, sizes, thicknesses, etc. of the arrow mark projected as the superimposed content 101, the arrow mark projected as the non-superimposed content 102, and the arrow mark projected as the distinguishing content 103. Can more easily recognize whether the projected virtual image content 100 is the superimposed content 101, the non-superimposed content 102, or the distinguishing content 103.

Further, the distinguishing content 103 may be any content that can distinguish between the projected superposed content 101 and the non-superimposed content 102. Therefore, the distinguishing content 103 may be, for example, content that visually and simply shows the shape and state of the road surface obtained by the peripheral monitoring sensor 4, or may be intersection information obtained from the navigation device. However, it may be road shape information obtained from the navigation device, information such as store signs existing around the own vehicle, and whether the incidental virtual image content 100 is the superimposed content 101. Character information indicating whether the content is non-superimposed content 102, for example, character information such as "This content is superposed content." The intersection information obtained from the navigation device is information indicating the shape and name of the intersection displayed when the own vehicle approaches the intersection, and the road shape information obtained from the navigation device is the traveling direction of the own vehicle. This is information that simply visually indicates the shape of the road ahead.

Further, the superimposed content 101, the non-superimposed content 102, and the distinguishing content 103 may be simultaneously projected in the projection area R. In this case, by making the projected position of the superposed content 101 different from the projected position of the non-superimposed content 102, it is possible to more easily distinguish the projected virtual image content 100.

Although the present disclosure has been described in accordance with the examples, it is understood that the present disclosure is not limited to the examples and the structure. The present disclosure also includes various modifications and modifications within an equal range. In addition, various combinations and forms, as well as other combinations and forms that include only one element, more, or less, are also within the scope of the present disclosure.

Further, the control unit and its method described in the present disclosure are provided by a dedicated computer provided by configuring a processor and memory programmed to perform one or more functions embodied by a computer program. , May be realized. Alternatively, the controls and methods thereof described in the present disclosure may be implemented by a dedicated computer provided by configuring the processor with one or more dedicated hardware logic circuits. Alternatively, the control unit and method thereof described in the present disclosure may be a combination of a processor and memory programmed to perform one or more functions and a processor composed of one or more hardware logic circuits. It may be realized by one or more dedicated computers configured. Further, the computer program may be stored in a computer-readable non-transitional tangible recording medium as an instruction executed by the computer.

In the drawing, 10 is a front windshield (projection unit), 20 is an HCU (display control device for a vehicle), 51 is a superposed content projection unit, 52 is a non-superimposition content projection unit, 53 is a distinction content projection unit, and 230 is a head. Shows up display.

Claims (7)

A vehicle display control device (20) that controls a head-up display (230) that projects virtual image content representing driving support-related information related to vehicle driving support onto a projection unit (10).
A superposed content projection unit (51) that projects the superposed content, which is the virtual image content, onto the projection unit so as to superimpose the superimposed content on the object included in the foreground of the vehicle.
A non-superimposed content projection unit (52) that projects the non-superimposed content, which is the virtual image content, onto the projection unit without superimposing it on an object included in the foreground of the vehicle.
A distinguishing content projection unit (53) that projects the distinctive content for distinguishing the superimposed content and the non-superimposed content projected on the projection unit onto the projection unit.
Vehicle display control device. The vehicle display control according to claim 1, wherein in the projection unit, the projection position where the superimposed content projection unit projects the superimposed content and the projection position where the non-superimposed content projection unit projects the non-superimposed content are different. apparatus. The projection unit is provided with a projection area on which the superposed content, the non-superimposed content, and the distinguishing content are projected.
The non-superimposed content projection unit projects the non-superimposed content onto the edge of the projection area.
The vehicle display control device according to claim 1 or 2, wherein the distinguishing content projection unit projects the distinguishing content onto an end portion of the projection area. The vehicle display control device according to any one of claims 1 to 3, wherein at least two contents of the superposed content, the non-superimposed content, and the distinguishing content are simultaneously projected onto the projection unit. The superimposed content projection unit superimposes and displays the superimposed content on the head-up display.
The vehicle display control device according to any one of claims 1 to 4, wherein the non-superimposed content projection unit displays the non-superimposed content on a display unit other than the head-up display existing in the vehicle interior. A display control method for a vehicle that controls a head-up display (230) that projects virtual image content representing driving support-related information related to vehicle driving support onto a projection unit (10).
The superimposed content projection process of projecting the superimposed content, which is the virtual image content, onto the projection unit so as to superimpose the superimposed content on the object included in the foreground of the vehicle.
The non-superimposed content projection process of projecting the non-superimposed content, which is the virtual image content, onto the projection unit without superimposing it on the object included in the foreground of the vehicle.
Distinguishing content projection processing for projecting the distinctive content for distinguishing the superimposed content and the non-superimposed content projected on the projection unit onto the projection unit, and
Display control method for vehicles including. Computer,
It is a display control program for vehicles to function as a display control device for vehicles that controls a head-up display (230) that projects virtual image contents representing driving support-related information related to driving support of the vehicle onto a projection unit (10). hand,
The superimposed content projection process of projecting the superimposed content, which is the virtual image content, onto the projection unit so as to superimpose the superimposed content on the object included in the foreground of the vehicle.
The non-superimposed content projection process of projecting the non-superimposed content, which is the virtual image content, onto the projection unit without superimposing it on the object included in the foreground of the vehicle.
Distinguishing content projection processing for projecting the distinctive content for distinguishing the superimposed content and the non-superimposed content projected on the projection unit onto the projection unit, and
A display control program for a vehicle that causes the computer to execute.

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