Vehicle display device, vehicle display system, vehicle display method and program

Abstract

To provide a display device for a vehicle, a display system for a vehicle, a display method for a vehicle, and a program which can display information on a driving diagnosis so as to prevent an occupant different from a specific occupant from knowing a content.SOLUTION: A display device for a vehicle includes: a mode setting part which sets a mode of a vehicle to one of a first mode and a second mode, and is provided in a vehicle; an acquisition part which acquires a driving diagnosis result of the vehicle, and is provided in the vehicle; and a display part 28 which displays an image indicating the driving diagnosis result in a first state when the vehicle is in the first mode, and can display an image 28A2 indicating the driving diagnosis result in a second state that is harder to be recognized by an occupant of the vehicle than the first state, when the vehicle is in the second mode.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present invention relates to a vehicle display device, a vehicle display system, a vehicle display method, and a program. [Background technology]

[0002] Patent Document 1 listed below discloses an auditory information providing device that can present predetermined auditory information only to specific occupants. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2009-196529 Summary of the Invention [Problem to be solved by the invention]

[0004] The above-mentioned Patent Document 1 leaves room for improvement in terms of displaying information relating to driving diagnosis in a manner that prevents other occupants from knowing the contents.

[0005] In consideration of the above, the present invention aims to provide a vehicle display device, a vehicle display system, a vehicle display method, and a program that can display information regarding driving diagnosis in a manner that prevents other occupants from knowing the content. [Means for solving the problem]

[0006] The vehicular display device according to claim 1 includes a mode setting unit provided in the vehicle that sets a mode of the vehicle to one of a first mode and a second mode; an acquisition unit provided in the vehicle that acquires a driving diagnosis result of the vehicle; and a display unit that displays an image representing the driving diagnosis result in a first manner when the vehicle is in the first mode, and that displays the image representing the driving diagnosis result in a second manner that is more difficult for an occupant of the vehicle to recognize than the first manner when the vehicle is in the second mode. and at least one of brightness and saturation of the image representing the driving diagnosis result in the second aspect is lower than that of the image representing the driving diagnosis result in the first aspect. .

[0007] In the claims and specification, when an occupant recognizes an image representing a driving diagnosis result, it means both that the occupant understands the meaning of the image representing a driving diagnosis result and that the occupant visually recognizes the image representing a driving diagnosis result. Furthermore, in the claims and the specification, the phrase "the second state is more difficult for an occupant to recognize than the first state" means that the second state is more difficult for an occupant with normal comprehension and normal visual recognition ability to recognize than the first state.

[0008] In the vehicle display device described in claim 1, when the vehicle is in the second mode, the display unit can display an image representing a driving diagnosis result in a second manner that is more difficult for vehicle occupants to recognize than the first manner. Here, assume that one of multiple occupants in the vehicle is a specific occupant (hereinafter referred to as the specific occupant). In this case, the second manner is more difficult for all occupants, including the specific occupant, to recognize than the first manner. However, for example, if only the specific occupant understands the meaning of the image representing the driving diagnosis result, the specific occupant can know the content of the driving diagnosis result even if the image representing the driving diagnosis result is difficult to visually recognize. Therefore, the vehicle display device described in claim 1 can display information related to the driving diagnosis in a manner that prevents occupants other than the specific occupant from knowing the content.

[0010] Claim 1 In the invention described above, at least one of the brightness and saturation of the image representing the driving diagnosis result in the second mode is lower than that of the image representing the driving diagnosis result in the first mode, making it more difficult for occupants to recognize the second mode than the first mode.

[0011] Claim 2 The vehicle display device according to the invention described in Claim 1 In the invention described above, the image showing the driving diagnosis result in the first aspect includes text, and the image showing the driving diagnosis result in the second aspect does not include text.

[0012] Claim 2In the invention described above, the image showing the driving diagnosis result in the first mode includes text, and the image showing the driving diagnosis result in the second mode does not include text, so the second mode is more difficult for the occupant to recognize than the first mode.

[0013] Claim 3 The vehicle display device according to the invention described in claim 1 or claim 2 includes a classification unit that classifies the driving diagnosis result into a first diagnosis result or a second diagnosis result based on the content of the driving diagnosis result, and the display unit displays an image representing the second diagnosis result in the second manner when the vehicle is in the second mode and the acquisition unit acquires the second diagnosis result.

[0014] Claim 3 According to the invention described in (1), when the vehicle is in the second mode and the acquisition unit acquires the second diagnostic result, the display unit displays an image representing the second diagnostic result in the second manner. Therefore, for example, when it is undesirable for the second diagnostic result to be known to occupants other than the specified occupant, it is possible to prevent the second diagnostic result from being known to occupants other than the specified occupant.

[0015] Claim 4 The display device for a vehicle according to the invention described above is the invention described in claim 1 or claim 2, wherein the display unit is provided on an instrument panel provided in front of a driver's seat of the vehicle.

[0016] Claim 4 According to the invention described in (1), the distance from the occupant positioned behind the driver's seat to the display unit is longer than the distance from the driver seated in the driver's seat to the display unit. This makes it more difficult for the occupant to recognize the second diagnostic result displayed on the display unit. Therefore, for example, when it is undesirable for the occupant to know the second diagnostic result, it is possible to prevent the occupant from knowing the second diagnostic result.

[0017] Claim 5The vehicle display device according to the invention described above, in the invention of claim 1 or claim 2, comprises an occupant determination unit provided in the vehicle that determines whether or not there is a general occupant other than the driver inside the vehicle based on information from a sensor provided in the vehicle, and when the occupant determination unit determines that there is a general occupant inside the vehicle, the mode setting unit sets the vehicle to the second mode.

[0018] Claim 5 According to the invention described in the above, the occupant determination unit determines whether or not there is a general occupant other than the driver in the vehicle based on information from a sensor provided in the vehicle. Furthermore, when the occupant determination unit determines that there is a general occupant, the mode setting unit sets the vehicle to the second mode. Therefore, for example, when it is undesirable for the second diagnosis result to be known to the general occupants, it is possible to prevent the second diagnosis result from being known to the general occupants.

[0019] Claim 6 The vehicle display system according to the present invention includes the vehicle display device of claim 1 or claim 2, and a driving diagnosis unit that executes a driving diagnosis of the vehicle and generates the driving diagnosis result.

[0020] Claim 7 The vehicle display method according to the invention described in (1) above includes the steps of: setting a mode of the vehicle to one of a first mode and a second mode; acquiring a driving diagnosis result of the vehicle; and, when the vehicle is in the first mode, causing a display unit to display an image representing the driving diagnosis result in a first manner, and when the vehicle is in the second mode, causing the display unit to be able to display the image representing the driving diagnosis result in a second manner that is more difficult for an occupant of the vehicle to recognize than the first manner. and at least one of brightness and saturation of the image representing the driving diagnosis result in the second aspect is lower than that of the image representing the driving diagnosis result in the first aspect. .

[0021] Claim 8The program according to the invention described in the item (1) is configured to execute on a computer the following processes: a process of setting a mode of a vehicle to one of a first mode and a second mode; a process of acquiring a driving diagnosis result of the vehicle; and a process of causing a display unit to display an image representing the driving diagnosis result in a first manner when the vehicle is in the first mode, and causing the display unit to display the image representing the driving diagnosis result in a second manner that is more difficult for an occupant of the vehicle to recognize than the first manner when the vehicle is in the second mode. and at least one of brightness and saturation of the image representing the driving diagnosis result in the second aspect is lower than that of the image representing the driving diagnosis result in the first aspect. . [Effects of the Invention]

[0022] As described above, the vehicle display device, vehicle display system, vehicle display method, and program according to the present invention have the excellent effect of being able to display information relating to driving diagnosis in a manner that prevents occupants other than a specific occupant from knowing the content. [Brief explanation of the drawings]

[0023] [Figure 1] 1 is an overall view of a vehicle display system according to a first embodiment. [Figure 2] FIG. 2 is a schematic plan view showing the vehicle shown in FIG. 1 with the roof portion thereof omitted. [Figure 3] 2 is a control block diagram of an ECU and an external server of the vehicle shown in FIG. 1. [Figure 4] FIG. 2 is a functional block diagram of the ECU. [Figure 5] FIG. 2 is a functional block diagram of an external server. [Figure 6] FIG. 10 is a diagram illustrating a display showing driving diagnosis results related to positive accelerator pedal operation in a first mode. [Figure 7] FIG. 10 is a diagram showing a display showing driving diagnosis results related to positive accelerator pedal operation in a second manner. [Figure 8] FIG. 10 is a diagram showing a display showing driving diagnosis results related to negative accelerator pedal operation in a first mode. [Figure 9]FIG. 10 is a diagram showing a display showing driving diagnosis results related to negative accelerator pedal operation in a second manner. [Figure 10] FIG. 2 is a front view showing an instrument panel and a fare meter device. [Figure 11] FIG. 2 is a front view showing an instrument panel and a mode changeover switch. [Figure 12] 10 is a flowchart showing a process executed by an external server. [Figure 13] 4 is a flowchart showing a process executed by a CPU of an ECU. [Figure 14] 10 is a flowchart showing processing executed by a CPU. [Figure 15] FIG. 10 is a functional block diagram of an ECU according to a second embodiment. [Figure 16] FIG. 10 is a diagram showing a classification list recorded in an ECU according to the second embodiment. [Figure 17] 10 is a flowchart showing a process executed by a CPU according to the second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0024] A first embodiment of a vehicle display device, a vehicle display system (hereinafter referred to as a system), a vehicle display method, and a program according to the present invention will be described below with reference to FIGS.

[0025] 1, the system 10 of the first embodiment includes a vehicle 12 and an external server 30. The external server 30 of the first embodiment is owned by a taxi operating company, which owns a large number of vehicles 12 used as taxis. Each vehicle 12 is assigned an ID.

[0026] As shown in FIG. 2, a pair of left and right front seats 16 and 17 are provided in a passenger compartment 14A of a vehicle 12 that can communicate with an external server 30 via a network. Note that, in FIG. 2, an arrow FR indicates the front side in the longitudinal direction of the vehicle, and an arrow LH indicates the left side in the transverse direction (vehicle width direction) of the vehicle. The front seats 16 and 17 are the front row seats. A steering wheel 15 is provided on the left side of an instrument panel 20P provided at the front end of the passenger compartment 14A. That is, the left front seat 16 is the driver's seat, and the right front seat 17 is the passenger seat. The passenger compartment 14A also has a rear seat 18 located behind the front seats 16 and 17. An occupant P1 is seated in the front seat 16, an occupant (general occupant) P2 is seated in the front seat 17, and an occupant (general occupant) P3 is seated in the rear seat 18. In the following description, the occupant P1 will be referred to as the driver P1.

[0027] 1, the vehicle 12 has an ECU (Electronic Control Unit) 21, a wheel speed sensor 22, an accelerator opening sensor 23, a brake depression force sensor 24, a steering angle sensor 25, an in-vehicle camera (sensor) 26, a GPS (Global Positioning System) receiver 27, and a display 28. The wheel speed sensor 22, the accelerator opening sensor 23, the brake depression force sensor 24, the steering angle sensor 25, the in-vehicle camera 26, the GPS receiver 27, and the display (display unit) 28 are connected to the ECU 21. In the following description, the wheel speed sensor 22, the accelerator opening sensor 23, the brake depression force sensor 24, the steering angle sensor 25, the in-vehicle camera 26, and the GPS receiver 27 may be collectively referred to as an "information acquisition unit."

[0028] The vehicle 12 is provided with four wheel speed sensors 22. Each wheel speed sensor 22 detects the wheel speed of each of the four wheels. The accelerator opening sensor 23 detects the accelerator opening, which changes in conjunction with the operation of the accelerator pedal by the driver P1 seated in the driver's seat of the vehicle 12. The brake depression force sensor 24 detects the brake depression force input to the brake pedal (not shown) by the driver P1. The steering angle sensor 25 detects the steering angle of the steering wheel 15 operated by the driver P1. The in-vehicle camera 26 acquires image data of subjects located inside the vehicle 12. These subjects include, for example, the driver P1 and passengers P2 and P3. The GPS receiver 27 receives GPS signals transmitted from GPS satellites to acquire information regarding the location where the vehicle 12 is traveling (hereinafter referred to as "position data"). The acquired data acquired by the information acquisition unit every time a predetermined time period has elapsed is transmitted to the ECU 21 via an in-vehicle network provided in the vehicle 12 and stored in a storage 21D (described later) of the ECU 21 in association with time information. This in-vehicle network is, for example, a CAN (Controller Area Network). In the following description, the acquired data acquired by the information acquisition unit may be referred to as "vehicle-related information."

[0029] 2, a display 28 equipped with a touch panel is provided in the center of the instrument panel 20P of the vehicle 12 in the left-right direction and is capable of displaying various images. The display 28 is located in front of the front seats 16, 17.

[0030] 2, the ECU (computer) 21 includes a CPU (Central Processing Unit: processor) 21A, a ROM (Read Only Memory) 21B, a RAM (Random Access Memory) 21C, a storage 21D, a communication I / F (Interface) 21E, and an input / output I / F 21F. The CPU 21A, ROM 21B, RAM 21C, storage 21D, communication I / F 21E, and input / output I / F 21F are connected to each other via a bus 21Z so as to be able to communicate with each other. The CPU 21A can obtain information related to the date and time from a timer (not shown).

[0031] The CPU 21A is a central processing unit that executes various programs and controls each part. That is, the CPU 21A reads programs from the ROM 21B or the storage 21D and executes the programs using the RAM 21C as a work area. The CPU 21A controls each component and performs various arithmetic processing (information processing) in accordance with the programs recorded in the ROM 21B or the storage 21D.

[0032] The ROM 21B stores various programs and various data. The RAM 21C temporarily stores programs or data as a working area. The storage 21D is configured by a storage device such as an HDD (Hard Disk Drive) or an SSD (Solid State Drive) and stores various programs and various data.

[0033] The communication I / F 21E is an interface for communicating with various devices. For example, the communication I / F 21E can communicate with devices other than the ECU 21 provided in the vehicle 12 via the in-vehicle network. These devices include, for example, an information acquisition unit. Furthermore, the communication I / F 21E can wirelessly communicate with an external server 30 via a network (for example, the Internet).

[0034] 4 is a block diagram showing an example of the functional configuration of the ECU 21. The ECU 21 has, as its functional configuration, a diagnosis unit (driving diagnosis unit) (acquisition unit) 201, a mode setting unit 202, a display control unit 203, and a communication control unit 204. These functional configurations are realized by the CPU 21A reading and executing programs stored in the ROM 21B.

[0035] The diagnosis unit 201 performs driving diagnosis based on data acquired from the wheel speed sensor 22, the accelerator opening sensor 23, the brake pedal force sensor 24, and the steering angle sensor 25. Methods of driving diagnosis performed based on this acquired data are well known, as disclosed in, for example, Japanese Patent Application Laid-Open Nos. 2019-12481 and 2020-95403.

[0036] Furthermore, the diagnosis unit 201 performs driving diagnosis on the accelerator pedal operation of the vehicle 12 based on the data acquired from the accelerator opening sensor 23 and the data acquired from the wheel speed sensor 22. Furthermore, the diagnosis unit 201 performs driving diagnosis on the brake pedal operation of the vehicle 12 based on the data acquired from the brake depression force sensor 24 and the data acquired from the wheel speed sensor 22. Furthermore, the diagnosis unit 201 performs driving diagnosis on the steering operation based on the data acquired from the steering angle sensor 25.

[0037] Information about the results of the driving diagnosis based on the data acquired from the wheel speed sensor 22, accelerator opening sensor 23, brake depression force sensor 24, and steering angle sensor 25 is information about the results of the real-time driving diagnosis. This result information is recorded in the storage 21D together with position data and time information. Furthermore, in the following description, the results of the real-time driving diagnosis will be referred to as "driving diagnosis results."

[0038] The mode setting unit 202 switches the mode of the vehicle 12 based on the mode setting information recorded in the storage 21D. The modes include a first mode and a second mode.

[0039] The display control unit 203 controls the display 28. The display 28 controlled by the display control unit 203 can display information related to the driving diagnosis result for a predetermined display time. This display time is, for example, 5 seconds.

[0040] However, the display control unit 203 changes the control method of the display 28 depending on whether the vehicle 12 is in the first mode or the second mode.

[0041] When the vehicle 12 is in the first mode, the display control unit 203 causes the display 28 to display the driving diagnosis result in a first manner. On the other hand, when the vehicle 12 is in the second mode, the display control unit 203 causes the display 28 to display the driving diagnosis result in a second manner. The second manner is a display manner that is more difficult for the driver P1 and the passengers P2 and P3 to recognize than the first manner. Here, the driver P1 and the passengers P2 and P3 recognizing the driving diagnosis result displayed on the display 28 includes both the driver P1 and the passengers P2 and P3 understanding the meaning of the image representing the driving diagnosis result and the driver P1 and the passengers P2 and P3 visually recognizing the image representing the driving diagnosis result. Furthermore, the driver P1 and the passengers P2 and P3 are assumed to have normal comprehension and normal visual recognition abilities. Therefore, it may be more difficult for the driver P1 and the passengers P2 and P3 to understand the meaning of the driving diagnosis result displayed in the second manner than for the driving diagnosis result displayed in the first manner. Also, it may be more difficult for the driver P1 and the passengers P2 and P3 to visually recognize the driving diagnosis result displayed in the second manner than for the driving diagnosis result displayed in the first manner. Also, it may be more difficult for the driver P1 and the passengers P2 and P3 to understand the meaning of the driving diagnosis result and to visually recognize it than for the driving diagnosis result displayed in the second manner.

[0042] However, the driver P1 understands the meaning of the images of all the driving diagnosis results of the second mode, whereas the occupants P2 and P3 do not understand the meaning of all the images of the driving diagnosis results of the second mode.

[0043] For example, both displays 28 in Figures 6 and 7 show driving diagnosis results related to positive accelerator pedal operation. The display mode of the driving diagnosis results in Figure 6 is a first mode, and the display mode of the driving diagnosis results in Figure 7 is a second mode.

[0044] Image 28A1 showing the driving diagnosis result of the first mode shown in Fig. 6 is drawn with characters showing the content of the driving diagnosis result. On the other hand, image 28A2 showing the driving diagnosis result of the second mode shown in Fig. 7 is a graphic that does not directly show the content of the driving diagnosis result. Therefore, it is more difficult for driver P1 and passengers P2 and P3 to understand the meaning of image 28A2 than the meaning of image 28A1.

[0045] Furthermore, the brightness and saturation of image 28A2 are lower than those of image 28A1. Furthermore, the contrast between image 28A2 and image 28B2 of the portion of display 28 other than image 28A2 in Fig. 7 is lower than the contrast between image 28A1 and image 28B1 of the portion of display 28 other than image 28A1 in Fig. 6. Therefore, it is more difficult for driver P1 and passengers P2 and P3 to visually recognize image 28A2 than image 28A1.

[0046] 8 and 9 both display driving diagnosis results related to negative accelerator pedal operation. The display mode of the driving diagnosis results in Fig. 8 is a first mode, and the display mode of the driving diagnosis results in Fig. 9 is a second mode.

[0047] Image 28C1 showing the driving diagnosis result of the first mode shown in Fig. 8 is drawn with characters showing the content of the driving diagnosis result. On the other hand, image 28C2 showing the driving diagnosis result of the second mode shown in Fig. 9 is a graphic that does not directly show the content of the driving diagnosis result. Therefore, it is more difficult for driver P1 and passengers P2 and P3 to understand the meaning shown by image 28C2 than the meaning shown by image 28C1.

[0048] Furthermore, the brightness and saturation of image 28C2 are lower than those of image 28C1. Furthermore, the contrast between image 28C2 and image 28D2 of the portion of display 28 other than image 28C2 in Fig. 9 is lower than the contrast between image 28C1 and image 28D1 of the portion of display 28 other than image 28C1 in Fig. 8. Therefore, it is more difficult for driver P1 and passengers P2 and P3 to visually recognize image 28C2 than image 28C1.

[0049] The communication control unit 204 controls the communication I / F 21E. The communication I / F 21E controlled by the communication control unit 204 is capable of wireless communication with the external server 30. For example, the communication I / F 21E is capable of receiving mode setting information, which will be described later, transmitted from the external server 30. Upon receiving the mode setting information, the communication I / F 21E records the mode setting information in the storage 21D.

[0050] 3, the external server 30 includes a CPU 31A, a ROM 31B, a RAM 31C, a storage 31D, a communication I / F 31E, and an input / output I / F 31F. The CPU 31A, the ROM 31B, the RAM 31C, the storage 31D, the communication I / F 31E, and the input / output I / F 31F are connected to each other via a bus 31Z so as to be able to communicate with each other. The CPU 31A, the ROM 31B, the RAM 31C, the storage 31D, the communication I / F 31E, and the input / output I / F 31F have functions corresponding to the CPU 21A, the ROM 21B, the RAM 21C, the storage 21D, the communication I / F 21E, and the input / output I / F 21F, respectively.

[0051] 5 is a block diagram showing an example of the functional configuration of the external server 30. The external server 30 has, as its functional components, a setting information generation unit 301 and a communication control unit 302. These functional components are realized by the CPU 31A reading and executing a program stored in the ROM 31B.

[0052] The setting information generation unit 301 generates mode setting information for each vehicle 12, which is used by the mode setting unit 202 of the vehicle 12 to set the mode of the vehicle 12. That is, the mode setting information represents rules for determining the mode of the vehicle 12, and the mode setting information generated by the setting information generation unit 301 includes ID information representing the ID of each vehicle 12. The mode setting information generated by the setting information generation unit 301 is recorded in storage 31D. Furthermore, when the setting information generation unit 301 updates the mode setting information, the setting information generation unit 301 updates the mode setting information recorded in storage 31D with the new information.

[0053] The external server 30 includes an information input device (not shown). An administrator (not shown) of the external server 30 can use this information input device to input information representing rules for determining the mode of the vehicle 12. When the information is input using the information input device, the setting information generation unit 301 generates mode setting information representing the input information.

[0054] The administrator can generate various types of mode setting information using the information input device. The following examples 1 to 3 are specific examples of mode setting information.

[0055] Example 1: When the CPU (occupant determination unit) 21A of the ECU 21 determines that only the driver P1 is present inside the vehicle 12 based on image data acquired by the in-vehicle camera 26, the mode setting unit 202 sets the vehicle 12 to the first mode. On the other hand, when the ECU 21 determines that there is an occupant other than the driver P1 present inside the vehicle 12, the mode setting unit 202 sets the vehicle 12 to the second mode. The image acquired by the in-vehicle camera 26 is transmitted to the ECU 21. Determination data, which is image data of the face of the driver P1, is recorded in the ROM 21B of the ECU 21, and when the image data acquired from the in-vehicle camera 26 matches the determination data, the ECU 21 determines that the driver P1 is in the vehicle. Furthermore, when the image data acquired from the in-vehicle camera 26 includes image data of a person that does not match the determination data, the ECU 21 determines that an occupant other than the driver P1 is in the vehicle.

[0056] Example 2: When the fare meter device 20A (see FIG. 10) provided on the instrument panel 20P is not calculating the fare, the mode setting unit 202 sets the vehicle 12 to the first mode. On the other hand, when the fare meter device 20A is calculating the fare, the mode setting unit 202 sets the vehicle 12 to the second mode. When the start switch 20A1 provided on the fare meter device 20A is pressed, the fare meter device 20A starts calculating the fare. That is, a number representing the fare is displayed on the fare display 20A3. When the end switch 20A2 is pressed, the fare calculation ends. The fare meter device 20A is connected to the ECU 21, and the CPU 21A recognizes that the start switch 20A1 and the end switch 20A2 have been pressed. Typically, the driver P1 causes the fare meter device 20A to calculate the fare when passengers P2 and P3 get into the vehicle 12, and presses the end switch 20A2 when passengers P2 and P3 get off.

[0057] Example 3: Every time the mode changeover switch 20B (see FIG. 11) provided on the instrument panel 20P is pressed, the mode setting unit 202 changes the mode of the vehicle 12 between the first mode and the second mode. The mode changeover switch 20B is connected to the ECU 21, and the CPU 21A recognizes that the mode changeover switch 20B has been pressed.

[0058] The communication control unit 302 controls the communication I / F 31E. The communication I / F 31E wirelessly transmits the mode setting information recorded in the storage 31D to the communication I / F 21E of the vehicle 12 indicated by the ID information included in the mode setting information.

[0059] (Action and effect) Next, the operation and effects of the first embodiment will be described.

[0060] First, the flow of processing performed by the CPU 31A of the external server 30 will be described using the flowchart in Fig. 12. The CPU 31A repeatedly executes the processing of the flowchart in Fig. 12 every time a predetermined time elapses. In the following description, the processing of the flowcharts in Fig. 12 and Figs. 13, 14, and 17, which will be described later, is executed by one processor (CPU), but multiple processors (CPUs) may execute the processing of the flowcharts in Figs. 12 to 14 and 17.

[0061] First, in S10 (hereinafter, the word "step" will be omitted), the CPU 31A determines whether or not information indicating the mode of the vehicle 12 has been input using the information input device.

[0062] If the determination in S10 is Yes, the CPU 31A proceeds to S11, where it generates mode setting information represented by information input using the information input device.

[0063] Next, the CPU 31A proceeds to S12, where it controls the communication I / F 31E to transmit the generated mode setting information to the vehicle 12 by wireless.

[0064] When the determination in S10 is No or when the process of S12 is completed, the CPU 31A temporarily ends the process of the flowchart in FIG.

[0065] Next, a description will be given of the flow of processing performed by the CPU 21A of the vehicle 12. The CPU 21A repeatedly executes the processing of the flowcharts of Figures 13 and 14 every time a predetermined time elapses. First, a description will be given using the flowchart of Figure 13.

[0066] In S20, the CPU 21A determines whether or not mode setting information is recorded in the storage 21D.

[0067] If the determination in S20 is Yes, the CPU 21A proceeds to S21, where it sets the mode of the vehicle 12 to a predetermined mode while referring to the mode setting information. For example, when the mode setting information of Example 1 above is recorded in the storage 21D and the CPU 21A determines that only the driver P1 is inside the vehicle 12 based on image data acquired by the in-vehicle camera 26, the CPU 21A sets the vehicle 12 to the first mode. Also, when the mode setting information of Example 2 above is recorded in the storage 21D and the CPU 21A determines that the fare meter device 20A is calculating the fare, the CPU 21A sets the vehicle 12 to the second mode.

[0068] When the determination in S20 is No or when the process of S21 is completed, the CPU 21A temporarily ends the process of the flowchart in FIG.

[0069] Next, the processing of the flowchart in FIG. 14 will be described.

[0070] In S30, the CPU 21A determines whether or not vehicle-related information has been acquired.

[0071] If the determination in S30 is Yes, the CPU 21A proceeds to S31 and records the acquired vehicle-related information in the storage 21D.

[0072] Next, the CPU 21A proceeds to S32 and determines whether a sufficient amount of vehicle-related information has been recorded in the storage 21D to perform real-time driving diagnosis during the time period between the current time and a time a predetermined time before the current time.

[0073] If the result of S32 is Yes, the CPU 21A proceeds to S33 and executes real-time driving diagnosis based on the vehicle-related information for which the result of S32 is Yes.

[0074] Next, the CPU 21A proceeds to S34, where it determines whether the mode of the vehicle 12 is the second mode.

[0075] If the determination in S34 is No, the CPU 21A proceeds to S35, and causes the driving diagnosis result generated in S33 to be displayed on the display 28 in the first mode for the above-mentioned display time. For example, if the driving diagnosis result related to accelerator pedal operation is generated in S33, the image 28A1 in FIG. 6 or the image 28C1 in FIG. 8 is displayed on the display 28.

[0076] On the other hand, when the determination in S34 is Yes, the CPU 21A proceeds to S36, and causes the driving diagnosis result generated in S33 to be displayed on the display 28 in the second mode for the above-mentioned display time. For example, if the driving diagnosis result related to accelerator pedal operation is generated in S33, the image 28A2 in FIG. 7 or the image 28C2 in FIG. 9 is displayed on the display 28.

[0077] When the determination in S30 or S32 is No, or when the processing in S35 or S36 is completed, the CPU 21A temporarily ends the processing of the flowchart in FIG.

[0078] As described above, in the first embodiment, when the vehicle 12 is in the second mode, the display 28 displays the image representing the driving diagnosis result in a second manner that is more difficult for the driver P1 and the passengers P2 and P3 to recognize than the first manner. That is, the display 28 displays the image in the second manner, which is difficult for the driver P1 and the passengers P2 and P3 to understand and visually recognize. However, the driver P1 understands the meaning of the image representing the driving diagnosis result displayed in the second manner. Therefore, when the driver P1 sees the image representing the driving diagnosis result, even though the image representing the driving diagnosis result is difficult to visually recognize, the driver P1 can understand the content of the driving diagnosis result. On the other hand, the passengers P2 and P3 have difficulty visually recognizing the image representing the driving diagnosis result displayed in the second manner and do not understand the meaning of this image. Furthermore, as shown in FIG. 2, because the display 28 is located in front of the front seats 16 and 17, the passenger P3 has difficulty visually recognizing the image representing the driving diagnosis result displayed in the second manner. Therefore, there is almost no risk that the occupants P2 and P3 will know the contents of the driving diagnosis results displayed in the second mode.

[0079] Furthermore, for example, when the mode setting unit 202 sets the vehicle 12 to the first mode based on the mode setting information of Example 1 above, the driver P1 can clearly visually recognize the driving diagnosis result displayed on the display 28 and can clearly understand the meaning of the driving diagnosis result. Furthermore, in this case, since there is no occupant other than the driver P1 in the vehicle, even if a negative driving diagnosis result is displayed on the display 28, the negative driving diagnosis result will not be known to occupants other than the driver P1.

[0080] Furthermore, in the first embodiment, the external server 30 generates mode setting information, and the mode of the vehicle 12 is set based on the generated mode setting information. Therefore, the administrator of the external server 30 can set rules for determining the mode of each vehicle 12.

[0081] Next, a second embodiment of the present invention will be described with reference to Figures 15 to 17. Note that the same components as those in the first embodiment are given the same reference numerals, and the description will be omitted where appropriate.

[0082] As shown in FIG. 15, the ECU 21 of the second embodiment has, as its functional configuration, a diagnosis unit 201, a mode setting unit 202, a display control unit 203, a communication control unit 204, and a classification unit 205.

[0083] The classification unit 205 classifies the driving diagnosis results generated by the diagnosis unit 201 based on the classification list 21L recorded in the ROM 21B or the storage 21D and shown in FIG. 16. The classification list 21L classifies the driving diagnosis results into two attributes. That is, the classification list 21L defines a first diagnosis result and a second diagnosis result as attributes of the driving diagnosis results. The first diagnosis result is a positive driving diagnosis result, and the second diagnosis result is a negative driving diagnosis result.

[0084] For example, a driving diagnosis result indicating a smooth accelerator pedal operation, a driving diagnosis result indicating a gentle brake pedal operation, and a driving diagnosis result indicating a smooth steering operation belong to the first diagnostic result. For example, a driving diagnosis result indicating a sudden accelerator pedal operation, a sudden brake pedal operation, and a sudden steering operation belong to the second diagnostic result.

[0085] Furthermore, the display control unit 203 of this embodiment determines the display mode of the driving diagnosis result based on the attributes of the driving diagnosis result when the vehicle 12 is in the second mode. That is, when the vehicle 12 is in the second mode, the display 28 displays the image representing the first diagnosis result in the first mode and the image representing the second diagnosis result in the second mode.

[0086] (Action and effect) Next, the operation and effects of the second embodiment will be described.

[0087] The CPU 21A of the second embodiment repeatedly executes the processing of the flowchart of Fig. 17 every time a predetermined time elapses. Note that, since S30 to S34 have already been explained, explanation of these processing will be omitted.

[0088] If the determination in S34 is No, the CPU 21A proceeds to S37, where it causes the driving diagnosis result generated in S33 to be displayed on the display 28 in the first mode for the above-mentioned display time. That is, in this case, the driving diagnosis result is displayed on the display 28 in the first mode regardless of the type of attribute of the driving diagnosis result.

[0089] On the other hand, if the determination in S34 is Yes, the CPU 21A proceeds to S38 and determines whether the driving diagnosis result generated in S33 is the second diagnosis result.

[0090] If the determination in S38 is No, the CPU 21A proceeds to S37. Therefore, the first diagnostic result generated in S33 is displayed on the display 28 in the first manner for the above-mentioned display time.

[0091] On the other hand, if the determination in S38 is Yes, the CPU 21A proceeds to S39. In this case, the second diagnostic result generated in S33 is displayed on the display 28 in the second format for the above-mentioned display time.

[0092] When the determination in S30 or S32 is No, or when the processing in S37 or S39 is completed, the CPU 21A temporarily ends the processing in the flowchart of FIG.

[0093] As described above, in the second embodiment, when the vehicle 12 is in the first mode, the driving diagnosis result is displayed in the first manner on the display 28, regardless of whether the driving diagnosis result is the first diagnosis result or the second diagnosis result. Therefore, the driver P1 can clearly visually recognize the driving diagnosis result displayed on the display 28 and can clearly understand the meaning of the driving diagnosis result.

[0094] Furthermore, when the vehicle 12 is in the second mode and the diagnosis unit 201 generates a first diagnostic result, the generated first diagnostic result is displayed on the display 28 in the first manner. Therefore, the driver P1 can clearly visually recognize the first diagnostic result displayed on the display 28 and can clearly understand the meaning of the first diagnostic result. In this case, the occupants P2 and P3 can also recognize the first diagnostic result by looking at the display 28. However, because the first diagnostic result is a positive driving diagnosis result, there is little risk that an unfavorable situation will occur for the driver P1 when the occupants P2 and P3 see the first diagnostic result.

[0095] Furthermore, when the vehicle 12 is in the second mode and the diagnosis unit 201 generates a second diagnosis result, the generated second diagnosis result is displayed in a second manner on the display 28. Therefore, only the driver P1 can know the content of the second diagnosis result, which is a negative driving diagnosis result, without the occupants P2 and P3 knowing the content of the second diagnosis result.

[0096] The vehicle display device, the system 10, the vehicle display method, and the program according to each embodiment have been described above, but these can be modified in design as appropriate within the scope of the gist of the present invention.

[0097] For example, the brightness or saturation of the image in the second mode displayed on the display 28 may be lower than that of the image in the first mode.

[0098] The image of the second embodiment displayed on the display 28 may include text.

[0099] The display 28 may be provided in a position shifted to the left from the center in the left-right direction of the instrument panel 20P. In this case, the distance from the front seat 17 to the display 28 is longer than the distance from the front seat 16 to the display 28. Therefore, it is more difficult for the occupant P2 to visually recognize the driving diagnosis results displayed in the second mode than for the driver P1. Note that, when the driver's seat is on the right side of the front seat, it is preferable to provide the display 28 in a position shifted to the right from the center in the left-right direction of the instrument panel 20P.

[0100] The external server 30 may have a function equivalent to the diagnosis unit 201, and may perform driving diagnosis based on vehicle-related information transmitted from the vehicle 12. In this case, the external server 30 may wirelessly transmit the generated driving diagnosis result to the communication I / F (acquisition unit) 21E of the vehicle 12, and the classification unit 205 may classify the driving diagnosis result received by the vehicle 12.

[0101] Furthermore, the external server 30 may have functions corresponding to the diagnosis unit 201 and the classification unit 205. In this case, the external server 30 performs a driving diagnosis based on the vehicle-related information transmitted from the vehicle 12, and classifies the generated driving diagnosis results based on the classification list 21L recorded in the ROM 31B or the storage 31D. Furthermore, the external server 30 wirelessly transmits the generated driving diagnosis results together with the classification information to the vehicle 12.

[0102] The mode setting information may be information that always sets the vehicle 12 to the second mode.

[0103] Vehicle 12 does not have to be a taxi.

[0104] The contents of the classification list 21L may be changeable using a voice input device (not shown) provided in the vehicle 12 or a touch panel provided on the display 28. Alternatively, the external server 30 may wirelessly transmit input information to the information input device connected to the external server 30 to the vehicle 12, and the ECU 21 may change the contents of the classification list 21L based on this input information.

[0105] The ECU 21 may generate the mode setting information based on information input using a touch panel provided on the display 28 or a voice input device.

[0106] [Note] The vehicle display device of the present invention may be any combination of the following configurations 1 to 6. <Configuration 1> A vehicle display device comprising: a mode setting unit provided in the vehicle that sets the vehicle mode to one of a first mode and a second mode; an acquisition unit provided in the vehicle that acquires driving diagnosis results of the vehicle; and a display unit that, when the vehicle is in the first mode, displays an image representing the driving diagnosis results in a first manner, and, when the vehicle is in the second mode, displays the image representing the driving diagnosis results in a second manner that is more difficult for an occupant of the vehicle to recognize than the first manner. <Configuration 2> A vehicle display device in which at least one of brightness and saturation of the image representing the driving diagnosis result in the second aspect is lower than that of the image representing the driving diagnosis result in the first aspect. <Configuration 3> A vehicle display device in which the image representing the driving diagnosis result of the first aspect includes text, and the image representing the driving diagnosis result of the second aspect does not include text. <Configuration 4> A vehicle display device including a classification unit that classifies the driving diagnosis result into a first diagnosis result or a second diagnosis result based on the content of the driving diagnosis result, and the display unit displays an image representing the second diagnosis result in the second manner when the vehicle is in the second mode and the acquisition unit acquires the second diagnosis result. <Configuration 5> A vehicle display device in which the display unit is provided on an instrument panel provided in front of the driver's seat of the vehicle. <Configuration 6> A vehicle display device comprising an occupant determination unit provided in the vehicle that determines whether or not there is a general occupant other than the driver inside the vehicle based on information from a sensor provided in the vehicle, and when the occupant determination unit determines that there is a general occupant inside the vehicle, the display unit displays an image representing the driving diagnosis result in the second manner. Furthermore, the vehicular display system of the present invention may be a combination of the following configuration 7 and at least one of configurations 1 to 6. <Configuration 7> A vehicle display system comprising the vehicle display device and a driving diagnosis unit that executes a driving diagnosis of the vehicle and generates the driving diagnosis result. Furthermore, the vehicle display method of the present invention may be a combination of the following configuration 8 and at least one of configurations 1 to 6. <Configuration 8> A display method for a vehicle, comprising the steps of setting the mode of the vehicle to one of a first mode and a second mode, acquiring a driving diagnosis result of the vehicle, and, when the vehicle is in the first mode, causing a display unit to display an image representing the driving diagnosis result in a first manner, and, when the vehicle is in the second mode, causing the display unit to be in a state where it can display the image representing the driving diagnosis result in a second manner that is more difficult for an occupant of the vehicle to recognize than the first manner. Furthermore, the program of the present invention may be a combination of the following configuration 9 and at least one of configurations 1 to 6. <Configuration 9> A program that causes a computer to execute the following processes: setting the mode of a vehicle to one of a first mode and a second mode; acquiring driving diagnosis results for the vehicle; and, when the vehicle is in the first mode, causing a display unit to display an image representing the driving diagnosis results in a first manner; and, when the vehicle is in the second mode, causing the display unit to display the image representing the driving diagnosis results in a second manner that is more difficult for an occupant of the vehicle to recognize than the first manner. [Explanation of symbols]

[0107] 10 Vehicle display system (system) 12 vehicles 20P instrument panel 21A CPU (occupant determination unit) 21E Communication I / F (acquisition section) 201 Diagnosis unit (driving diagnosis unit) (acquisition unit) 202 Mode setting section 205 Classification Department 26 In-car camera (sensor) 28 Display (display unit) 30 External server (driving diagnosis section) P1 Occupant (driver) (specific occupant) P2 P3 Crew (general crew)

Claims

1. a mode setting unit provided in the vehicle that sets a mode of the vehicle to one of a first mode and a second mode; an acquisition unit provided in the vehicle that acquires a driving diagnosis result of the vehicle; a display unit that displays an image representing the driving diagnosis result in a first manner when the vehicle is in the first mode, and that displays the image representing the driving diagnosis result in a second manner that is more difficult for an occupant of the vehicle to recognize than the first manner when the vehicle is in the second mode; Equipped with The vehicle display device, wherein at least one of brightness and saturation of the image representing the driving diagnosis result in the second aspect is lower than that of the image representing the driving diagnosis result in the first aspect.

2. The vehicle display device according to claim 1 , wherein the image representing the driving diagnosis result in the first aspect includes text, and the image representing the driving diagnosis result in the second aspect does not include text.

3. a classification unit that classifies the driving diagnosis result into a first diagnosis result or a second diagnosis result based on the content of the driving diagnosis result; 3. The vehicle display device according to claim 1, wherein the display unit displays an image representing the second diagnostic result in the second manner when the vehicle is in the second mode and the acquisition unit acquires the second diagnostic result.

4. 3. The display device for a vehicle according to claim 1, wherein the display unit is provided on an instrument panel provided in front of a driver's seat of the vehicle.

5. an occupant determination unit provided in the vehicle that determines whether or not a general occupant other than a driver is present inside the vehicle based on information from a sensor provided in the vehicle; 3. The vehicle display device according to claim 1, wherein the mode setting unit sets the vehicle to the second mode when the occupant determination unit determines that the general occupant is present.

6. The vehicle display device according to claim 1 or 2; a driving diagnosis unit that performs a driving diagnosis of the vehicle and generates a driving diagnosis result; A vehicle display system comprising:

7. setting the mode of the vehicle to one of a first mode and a second mode; obtaining a driving diagnosis result of the vehicle; and a step of displaying an image representing the driving diagnosis result in a first manner on a display unit when the vehicle is in the first mode, and, when the vehicle is in the second mode, causing the display unit to be able to display the image representing the driving diagnosis result in a second manner that is more difficult for an occupant of the vehicle to recognize than the first manner; and The display method for a vehicle, wherein at least one of brightness and saturation of the image representing the driving diagnosis result of the second aspect is lower than that of the image representing the driving diagnosis result of the first aspect.

8. setting the vehicle mode to one of a first mode and a second mode; A process of acquiring a driving diagnosis result of the vehicle; and a process of displaying an image representing the driving diagnosis result in a first manner on a display unit when the vehicle is in the first mode, and of displaying the image representing the driving diagnosis result in a second manner that is more difficult for an occupant of the vehicle to recognize than the first manner when the vehicle is in the second mode; on the computer, A program in which at least one of brightness and saturation of the image representing the driving diagnosis result in the second aspect is lower than that of the image representing the driving diagnosis result in the first aspect.

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