JP7263785B2 - Display control device, display control method, display control program, and display device - Google Patents

Description

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

As an example, when the remaining fuel level of a vehicle falls below a predetermined threshold, a warning light mark is displayed over a portion of the remaining fuel level meter to indicate that the remaining fuel level is running low. sometimes.

On vehicles, warning lights are commonly indicated by small marks on the instrument panel. When an abnormality occurs in the vehicle function corresponding to the warning light, the display color of the mark changes from green to red, for example, to notify the driver of the occurrence of an abnormality in the vehicle.

While the vehicle is running, the driver's attention is focused on the front of the vehicle, and it is difficult for the driver to notice the change in the display color of the small marks on the instrument panel. Patent Literature 1 discloses an invention of a head-up display (HUD) that projects and displays, on a windshield glass, a mark of a warning light corresponding to a vehicle function in which an abnormality has been detected.

JP 2016-215768 A

However, the HUD described in Patent Document 1 has a limited area in which information can be displayed, so there is a limit to the number of characters that can be displayed. The problem was that it was difficult. Further, the visibility of the HUD is affected by the weather. For example, when the sunlight is strong, there is a problem that the information projected on the windshield glass becomes difficult to see.

The present invention has been made in consideration of the above facts, and is a display control device capable of displaying detailed information on the state of the vehicle abnormality and countermeasures on the display device of the vehicle when an abnormality occurs in the vehicle. , a display control method, a display control program, and a display device .

In order to achieve the above object, the invention according to claim 1 provides a first display device for projecting information on the windshield glass of the vehicle when an abnormality occurs in the vehicle. controlling the first display device to display a first message related to one on the windshield glass ; controlling the third display device so as to display a third message relating to the cause of the abnormal state on the third display device that does not project information to the third display device, and the third display device is positioned closer to the center in the vehicle width direction than the first display device and the third display device; and is provided with a display unit larger than that of the first display device and the third display device, and is a device different from each of the first display device and the third display device that does not project information on the windshield glass The second display device is controlled to display a second message related to the abnormality, which is more detailed than the first message, on the display section of the second display device.

According to the first aspect of the invention, the first display device, which can be easily viewed while driving, simply displays a message regarding the cause of the abnormality, the phenomenon of the abnormality, and measures to be taken while driving, so that the driver can stop the vehicle. can be prompted and more detailed information can be displayed on a second display whose display is larger than the first display. Moreover, even when the visibility of the first display device is deteriorated due to weather, information can be displayed on the second display device.

As described above, according to the present invention, when an abnormality occurs in the vehicle, it is possible to display detailed information on the state of the vehicle abnormality and countermeasures on the display device of the vehicle.

1 is a block diagram showing an outline of a display control device according to an embodiment of the invention; FIG. 1 is a schematic diagram showing one aspect of a display device according to an embodiment of the present invention; FIG. 1 is a schematic diagram showing an example of display transitions on the HUD, meter, and center display when an abnormal state occurs in a device to be controlled of a vehicle, and (A) is a message of an abnormal state on each of the HUD and meter when a failure occurs. is displayed, and the INFO icon SW is displayed on the center display, (B) is the state in which the message displayed on the HUD and the meter is erased by the operation of the driver, who is the user, and (C) is the INFO icon SW pressed. Each shows a state in which a detailed message is displayed on the center display by user operation. 1 is a table showing a list of messages related to an electronic power steering (EPS) failure; FIG. 5 is a sequence diagram showing an example of display processing of an abnormal state of the display control device according to the embodiment of the present invention;

Embodiments for carrying out the present invention will be described in detail below with reference to the drawings. FIG. 1 is a block diagram showing an outline of a display control device 10 according to this embodiment.

As shown in FIG. 1, the display control device 10 according to the present embodiment includes ECUs (Electronic Control Units) 30A, 30B, 30C, and 30D that respectively control devices 32A, 32B, 32C, and 32D to be controlled, and ECUs 30A to 30D. A display device control unit 20 for displaying information on each of the HUD 22, the meter 24, and the center display 26, which are display devices, based on the signals indicating the states of the controlled devices 32A to 32D input from 30D, and the driver's operation. and an input device 28 for outputting a signal relating to an instruction such as to stop display or display detailed information to the display device control unit 20 . The ECUs 30A to 30D and the display device control section 20 are control devices using semiconductor devices such as microcomputers.

Examples of the devices to be controlled 32A to 32D are in-vehicle devices such as engines, transmissions, brakes, airbags, lamps, power steering, power windows, car air conditioners, electronic key receivers, car audio, and car navigation. . Such in-vehicle equipment is controlled by control devices corresponding to each of the ECUs 30A to 30D. Hereinafter, in the present embodiment, an abnormality of the vehicle refers to a case where some abnormality occurs in the control devices such as the controlled devices 32A to 32D or the ECUs 30A to 30D.

The HUD 22 is a device that projects basic information for the driver onto the windshield glass of the vehicle.

The meter 24 is instruments such as a speedometer, a distance meter, a fuel gauge, a cooling water temperature gauge, and an oil pressure warning light provided on an instrument panel or the like. The HUD 22 and the meter 24 are provided, for example, at a position such as the upper part of the instrument panel, which intersects the line of sight of the driver.

The center display 26 has an information display area (information display portion) larger than the HUD 22 and the meter 24 described above, has a touch panel that allows switch operation by the driver, and is provided on the instrument panel near the front passenger seat. It is a display device.

The input device 28 is a switch provided on an instrument panel or the like, a touch panel provided on the above-described center display 26, or the like.

FIG. 2 is a schematic diagram showing one mode of the display device according to this embodiment. As shown in FIG. 2, as an example, the HUD 22 projects basic information for the driver such as the vehicle speed and the traveling direction of the vehicle by the car navigation system onto the windshield glass 44, and also controls target devices 32A to 32D. Alternatively, when an abnormality occurs in the ECUs 30A to 30D, an abnormal state message 22A is displayed to inform the driver of the abnormal state.

The meter 24 displays an abnormal state message 24A for notifying the driver of the abnormal state together with the abnormal state message 22A of the HUD 22 when any abnormality occurs in the controlled devices 32A to 32D or the ECUs 30A to 30D.

The center display 26 is provided closer to the front passenger seat than the driver's seat equipped with the steering wheel 42, and displays an error status message 22A of the HUD 22 and an error message 22A of the meter 24 when an error occurs in the control target devices 32A-32D or the ECUs 30A-30D. Along with the status message 24A, an information icon switch (hereinafter abbreviated as "INFO icon SW") 26A for notifying the driver of an abnormal condition is displayed. As will be described later, when the INFO icon SW26A is pressed (or touched), a detailed message of the abnormal condition of the vehicle is displayed.

FIG. 3 is a schematic diagram showing an example of display transitions of the HUD 22, the meter 24, and the center display 26 when an abnormal state occurs in the controlled equipment 32A to 32D of the vehicle. Abnormal state messages 22A and 24A are displayed on each of the meters 24, and an INFO icon SW26A is displayed on the center display 26. (B) is an abnormal state displayed on the HUD 22 and the meter 24 by the operation of the driver who is the user. (C) shows a state in which the messages 22A and 24A are erased, and (C) shows a state in which a detailed message 26B is displayed on the center display 26 by the user's operation of pressing the INFO icon SW 26A. Deletion of the abnormal condition messages 22A and 24A in FIG. 3B is executed, for example, by operating a predetermined switch provided on the instrument panel 40, the meter 24, or the like.

FIG. 4 is a table showing, as an example, a list of messages related to electronic power steering (EPS) failure. There are four types of messages: category (1) that is the cause of the abnormal state, category (2) that is the phenomenon of the abnormal state, category (3) that is the action taken while driving, and category (4) that is the action taken after stopping the vehicle. be.

Category (1) indicates what happened to the vehicle and the message is "EPS failure" as an example. Category (2) indicates what can happen to the driver, who is the user, and the message is, for example, "the steering wheel becomes heavy". Classification (3) indicates what kind of coping action must be taken while driving, and the message is, for example, "stop in a safe place". Classification (4) indicates what coping action should be taken after the vehicle has stopped, and the message is, for example, "Contact dealer".

The abnormal state message 22A displayed on the HUD 22 falls into the above categories (3) and (2), the abnormal state message 24A displayed on the meter 24 falls into the above categories (1) and (2), and the center display 26 The INFO icon SW 26A and detailed message 26B displayed in .

FIG. 5 is a sequence diagram showing an example of abnormal state display processing of the display control device 10 according to the present embodiment. As shown in FIG. 5, an abnormal state (A) is detected in step S1. Detection of the abnormal state (A) is, for example, detected by the ECUs 30A to 30D associated with the controlled devices 32A to 32D in the abnormal state, and a signal indicating that the controlled devices 32A to 32D are in the abnormal state (A). is sent to the display device control unit 20 . The display device control unit 20, which has received the signal indicating the abnormal state (A), outputs diagnostic information (diagnostic information) indicating the abnormal state (A) (corresponding to the control target devices 32A to 32D in the abnormal state) in step S2. Send with Abnormal state (A) can also occur when the ECUs 30A to 30D that control the devices to be controlled 32A to 32D are malfunctioning. The ECUs 30A to 30D during normal operation transmit a predetermined signal to the display device control unit 20, for example, at each control cycle. The ECUs 30A to 30D transmit to the display device control section 20 a signal indicating that the is in an abnormal state. When a predetermined signal from the ECUs 30A to 30D is interrupted or a signal indicating an abnormal state is received from the ECUs 30A to 30D, the display device control unit 20 detects the abnormal state (A ) is transmitted in step S2.

The diagnostic information transmitted in step S2 is a kind of control signal for instructing messages to be displayed on each of HUD 22, meter 24 and center display 26. FIG. Each of HUD 22, meter 24 and center display 26 displays a message according to the diagnostic information transmitted in step S2. For example, if the abnormal condition (A) is a failure of the EPS, the HUD 22 outputs the category (3) message "stop at a safe place" in step S3, and further, depending on the case, the category (2) message " The steering wheel becomes heavy." is also displayed. In step S4, the meter 24 displays the category (1) message "EPS failure" and, in some cases, the category (2) message "steering becomes heavy". Messages of category (2) may be displayed on either HUD 22 or meter 24 .

The center display 26 displays the INFO icon SW 26A of category (4) in step S5, and further adds (prepares for display) a list screen of the abnormal state (A) in step S6. The list screen is, for example, a screen explaining all messages of categories (1) to (4) as shown in FIG. (not displayed at the stage of step S6).

After displaying the messages shown in steps S3-S5, steps S7-S9 are performed as optional actions. After the message is displayed, if a certain period of time has passed, the message displayed on the HUD 22 is erased in step S7. After displaying the message, if an operation to save the error message by pressing a predetermined switch or the like is performed in step S8 before a certain period of time elapses, the message displayed on the HUD 22 is erased in step S9.

At step S10, when the INFO icon SW26A displayed on the center display 26 is pressed, a list screen of abnormal conditions (A) is displayed on the center display 26 as a detailed message 26B at step S11.

In step S12, by a transition operation to a detailed screen other than pressing the INFO icon SW26A, a list screen of abnormal states is displayed on the center display 26 in step S13. The transition operation is performed, for example, by operating a switch or the like separately provided in a portion other than the screen of the center display 26 .

By pressing the link of the owner's manual (OM) displayed on the screen of the center display 26 in step S14, the corresponding part of the owner's manual is displayed as a further detailed message 26B in step S15.

Further, when an abnormal state (B) different from the abnormal state (A) is detected in step S16, the display device control unit 20 transmits diagnostic information indicating the abnormal state (B) in step S17.

According to the diagnostic information in step S17, the meter 24 displays a message of category (1) and, in some cases, a message of category (2) as well, for abnormal condition (A) and abnormal condition (B) in step S18. In step S18, a message regarding the abnormal state (A) and a message regarding the abnormal state (B) are cyclically displayed. In the present embodiment, when a plurality of abnormal states occur intermittently, messages relating to each abnormal state are displayed in succession in order like cyclic display. The center display 26 displays the INFO icon SW 26A of the category (4) in step S18, and further displays the abnormal state (B) list screen together with the abnormal state (A) list screen in step S19.

As described above, the display control device 10 according to the present embodiment classifies messages displayed on each of the HUD 22, the meter 24, and the center display 26, which are display devices, into classification (1) cause of abnormal state, classification (2) There are four types of abnormal state phenomena: classification (3) handling during driving and classification (4) handling after stopping the vehicle. Display messages of categories (1), (2), and (3). In addition, the INFO icon SW26A of category (4) is displayed on the center display 26, which is difficult to see unless the driver moves his/her line of sight from the driving state to the passenger seat side, and the driver operates the INFO icon SW26A. At that time, the detailed content of the abnormality information is displayed on the center display 26 .

The HUD 22 and the meter 24, which can be easily viewed while driving, briefly display messages related to the cause of the abnormal state, the phenomenon of the abnormal state, and how to deal with the problem while driving. The driver can be prompted to stop the vehicle. After the driver stops the vehicle, detailed information is displayed on the center display 26 whose screen is larger than the HUD 22 and the meter 24. Therefore, when an abnormality occurs in the vehicle function, the status of the abnormality in the vehicle function and the Detailed information on countermeasures can be displayed on the vehicle's display. Although the visibility of the HUD 22 may deteriorate due to the weather, the information displayed on the meter 24 or the center display 26 can be confirmed even in such a case.

The present invention is not limited to the above-described embodiments, and it goes without saying that various modifications other than the above-described embodiments can be implemented without departing from the scope of the invention.

In the claims, the first display device corresponds to the HUD 22 and meter 24, the second display device to the center display 26, and the control unit to the display device control unit 20, respectively.

10 display control device 20 display device control unit 22 HUD
22A Abnormal state message 24 Meter 24A Abnormal state message 26 Center display 26A INFO icon SW
26B Detailed message 28 Input device 30A, 30B, 30C, 30D ECU
32A, 32B, 32C, 32D Control target device 40 Instrument panel

Claims (10)

When an abnormality occurs in the vehicle, a first display device for projecting information on the windshield glass of the vehicle displays a first message relating to at least one of countermeasures during driving or an abnormal phenomenon on the windshield glass. A third display device which controls the first display device and which is different from the first display device and which is located below the first display device and which does not project information onto the windshield glass causes an abnormal state. controlling the third display device to display a third message, provided on the center side in the vehicle width direction relative to the first display device and the third display device, and further from the first display device and the third display device; The display unit of the second display device, which is a device different from each of the first display device and the third display device, which has a larger display portion than the windshield glass and does not project information on the windshield glass . A display control device for controlling the second display device to display a second message that is more detailed than the first message. 2. The display control device according to claim 1, wherein said first message includes at least one of a message concerning a cause of said abnormality, a phenomenon of said abnormality, and a countermeasure during driving. 3. The display control according to claim 1 or 2, wherein the second message includes at least one of an abnormal state list screen, an owner's manual, and a message regarding coping actions to be taken after stopping the vehicle, corresponding to the abnormality. Device. The display control device according to any one of claims 1 to 3, wherein the first message includes at least information prompting the vehicle to stop. 5. The display control device according to claim 4, which controls to display the second message on the second display device after the vehicle stops. 6. The display control device according to any one of claims 1 to 5, wherein, when there are a plurality of said abnormalities, said first display device is controlled to display messages relating to each of said plurality of abnormalities in order. The display control device according to any one of claims 1 to 6, wherein control is performed to display an icon on the second display device, and control is performed to display the second message when the icon is operated. . The display control device according to any one of claims 1 to 7;
the first display device;
the second display device;
the third display device;
A display device. When an abnormality occurs in the vehicle, a first display device for projecting information on the windshield glass of the vehicle displays a first message relating to at least one of countermeasures during driving or an abnormal phenomenon on the windshield glass. A procedure for controlling the first display device, and a device different from the first display device existing below the first display device, causing an abnormal state in a third display device that does not project information onto the windshield glass. The third display device is controlled to display a third message related to the first display device and the third display device, which is provided on the vehicle width direction center side of the first display device and the third display device. The abnormality relates to the display unit of the second display device, which is a device different from each of the first display device and the third display device, which has a display unit larger than the device and does not project information on the windshield glass, and a procedure for controlling the second display device to display a second message that is more detailed than the first message. When an abnormality occurs in the vehicle, the computer displays a first message relating to at least one of countermeasures during driving or an abnormal phenomenon on the windshield glass of the vehicle on a first display device for projecting information on the windshield glass of the vehicle. a procedure for controlling the first display device so as to cause the display device to be displayed, and a device different from the first display device existing below the first display device, and an abnormality in the third display device that does not project information onto the windshield glass The third display device is controlled to display a third message related to the cause of the state, the third display device is provided closer to the center in the vehicle width direction than the first display device and the third display device , and the first display device and the third display device The abnormality in the display section of the second display device which has a display section larger than that of the third display device and which is different from each of the first display device and the third display device which does not project information onto the windshield glass. A display control program for executing a procedure for controlling the second display device to display a second message that is more detailed than the first message.

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