WO2018025475A1 - 車両用映像表示システム - Google Patents

車両用映像表示システム Download PDF

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Publication number
WO2018025475A1
WO2018025475A1 PCT/JP2017/019720 JP2017019720W WO2018025475A1 WO 2018025475 A1 WO2018025475 A1 WO 2018025475A1 JP 2017019720 W JP2017019720 W JP 2017019720W WO 2018025475 A1 WO2018025475 A1 WO 2018025475A1
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WO
WIPO (PCT)
Prior art keywords
video
video display
unit
display device
vehicle signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2017/019720
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English (en)
French (fr)
Japanese (ja)
Inventor
俊 冨岡
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Denso Corp
Original Assignee
Denso Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Denso Corp filed Critical Denso Corp
Priority to CN201780047071.9A priority Critical patent/CN109564750A/zh
Priority to DE112017003885.5T priority patent/DE112017003885T5/de
Publication of WO2018025475A1 publication Critical patent/WO2018025475A1/ja
Priority to US16/262,983 priority patent/US11348495B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/60—Instruments characterised by their location or relative disposition in or on vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/80—Arrangements for controlling instruments
    • B60K35/81—Arrangements for controlling instruments for controlling displays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/18—Information management
    • B60K2360/186—Displaying information according to relevancy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/21—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using visual output, e.g. blinking lights or matrix displays
    • B60K35/215—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using visual output, e.g. blinking lights or matrix displays characterised by the combination of multiple visual outputs, e.g. combined instruments with analogue meters and additional displays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/28—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor characterised by the type of the output information, e.g. video entertainment or vehicle dynamics information; characterised by the purpose of the output information, e.g. for attracting the attention of the driver
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/29—Instruments characterised by the way in which information is handled, e.g. showing information on plural displays or prioritising information according to driving conditions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K37/00—Dashboards
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/12—Test circuits or failure detection circuits included in a display system, as permanent part thereof
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2380/00—Specific applications
    • G09G2380/10—Automotive applications

Definitions

  • This disclosure relates to a vehicle video display system.
  • An object of the present disclosure is to provide a vehicular video display system capable of displaying safety requirement information necessary for driving even when the video display device is out of order.
  • a video output device capable of simultaneously outputting video signals from a plurality of video output units, and a video signal output from the video output device is input to the video input unit and displayed as a video on the video display unit
  • a vehicle signal generation unit that generates a vehicle signal indicating the state of the vehicle
  • the video display device includes a self-circuit failure diagnosis unit that diagnoses a failure of its own internal circuit, and a failure that determines whether or not its own internal circuit has failed based on a diagnosis result by the self-circuit failure diagnosis unit
  • a diagnosis result determination unit, and a diagnosis result notification unit that notifies the video output device of a diagnosis result by the failure diagnosis result determination unit
  • the video output device includes: a first vehicle signal input unit that inputs the vehicle signal generated by the vehicle signal generation unit; a first vehicle signal input unit that inputs the vehicle signal generated by the vehicle signal generation unit
  • the self-circuit failure diagnosis unit of the video display device diagnoses its own internal circuit.
  • the failure diagnosis result determination unit determines whether or not its own internal circuit is in failure based on the diagnosis result from the self circuit failure diagnosis unit.
  • the diagnosis result notification unit notifies the video output device of the diagnosis result of the failure diagnosis result determination unit.
  • the video display destination determining unit of the video output device displays the safety requirement information on the minimum information necessary for driving on the video display device when it is determined to be abnormal based on the diagnosis result notified from the video display device.
  • the video display unit displays the security requirement information.
  • the security requirement information can be displayed on the normal video display device, so that the safety requirement information is provided to the driver. be able to.
  • FIG. 1 is a functional block diagram illustrating a configuration of a video display system according to an embodiment.
  • FIG. 2 is a view showing the periphery of the instrument panel
  • FIG. 3 is a block diagram showing signal transmission
  • FIG. 4 is a block diagram showing signal transmission in a state where the first video display device has failed.
  • FIG. 5 is a block diagram showing signal transmission in a state where the video output ECU has failed,
  • FIG. 6 is a flowchart showing the operation of the video display device,
  • FIG. 7 is a flowchart showing the operation of the video output ECU.
  • a dashboard 1 is provided in front of the vehicle interior, and an instrument panel 3 is provided in a portion of the dashboard 1 that is behind the steering wheel 2.
  • a first video display device 4 is provided on the instrument panel 3 so as to be visible through the opening of the steering wheel 2.
  • the first video display device 4 has display functions such as a speedometer, a tachometer, an odometer, a water temperature gauge, a fuel gauge, a clock, and various warning lamps.
  • the center console 5 is provided with a second video display device 6.
  • the second video display device 6 displays various switches and maps for operating the navigation device when the navigation function is selected, and various switches for operating the audio device when the audio function is selected. Or display.
  • a third video display device 8 is provided in a portion of the windshield 7 in front of the driver's seat.
  • the third video display device 8 is a self-luminous transparent type EL display and functions as a head-up display.
  • the 1st video display apparatus 4 and the 2nd video display apparatus 6 are comprised from the liquid crystal display, you may comprise from an EL display or an LED display. Further, the number of video display devices is not limited to three, and any number may be provided as long as there are a plurality of video display devices.
  • a vehicle video display system 9 includes a vehicle signal generation ECU 10 (corresponding to a vehicle signal generation unit), a video output ECU (Electronic Control Unit) 11 (corresponding to a video output device), and each video display.
  • the video output ECU 11 controls the display of the three video display devices 4, 6, and 8.
  • the video output ECU 11 is connected to the vehicle signal generation ECU 10 via an in-vehicle network.
  • Protocols such as CAN (Controller Area Network), LIN (Local Interconnect Network), FlexRay, and Ethernet (registered trademark) are used as protocols for the in-vehicle network.
  • FIG. 1 shows an ECU related to the present disclosure, and actually, a large number of ECUs are connected to the in-vehicle network.
  • the vehicle signal generation ECU 10 generates vehicle signals indicating vehicle speed, engine speed, and the like based on signals received from various in-vehicle sensors and other ECUs, and as shown in FIG. , 6 and 8 are transmitted.
  • the control unit 12 of the video output ECU 11 includes a microcomputer having a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and an I / O (Input / Output).
  • the control unit 12 executes processing corresponding to the computer program by executing the computer program stored in the non-transitional tangible recording medium, and controls the overall operation of each of the video display devices 4, 6, 8. .
  • the control unit 12 includes a vehicle signal input unit 12a (corresponding to a first vehicle signal input unit), a video content generation unit 12b (corresponding to a first video content generation unit), a video display destination determination unit 12c, first to third videos. Output units 13, 14, and 15 are provided.
  • the vehicle signal input unit 12a, the video content generation unit 12b, and the video display destination determination unit 12c are configured by programs executed by the control unit 12, and are realized by software.
  • the vehicle signal input unit 12a inputs a vehicle signal from the vehicle signal generation ECU 10.
  • the video content generation unit 12b generates video content for displaying safety requirement information necessary for driving based on the vehicle signal input by the vehicle signal input unit 12a.
  • safety requirement information include vehicle speed, engine speed, mileage, engine coolant temperature, engine oil temperature, automatic transmission shift range, fuel level, and battery level for electric vehicles. is there.
  • the video display destination determination unit 12c determines that one of the video display devices 4, 6, and 8 has failed based on the diagnosis result input from each of the video display devices 4, 6, and 8, as described later,
  • the video content generated by the video content generation unit 12b is output to the video output units 13, 14, and 15 corresponding to the video display devices 4, 6, and 8.
  • the video output units 13, 14, and 15 convert the input information into video signals as shown in FIG. 3, and output the video signals to the corresponding video display devices 4, 6, and 8, respectively.
  • the control unit 16 of each video display device 4, 6 and 8 is constituted by a microcomputer having a CPU, a ROM, a RAM and an I / O.
  • the control unit 16 executes the computer program stored in the non-transitional tangible recording medium, thereby executing processing corresponding to the computer program and controlling the overall operation of the video display devices 4, 6, and 8.
  • the control unit 16 has a function of detecting a failure of its own internal circuit (hereinafter referred to as “self circuit”) and a failure of the video output ECU 11.
  • self circuit a failure diagnosis unit 16 a and a video input unit 16 b are provided.
  • Input video failure diagnosis unit 16c, vehicle signal input unit 16d (corresponding to the second vehicle signal input unit), video content generation unit 16e (corresponding to the second video content generation unit), failure diagnosis result determination unit 16f, diagnosis result notification A unit 16g and a video display unit 17 are provided.
  • Self-circuit failure diagnosis unit 16a, video input unit 16b, input video failure diagnosis unit 16c, vehicle signal input unit 16d, video content generation unit 16e, failure diagnosis result determination unit 16f, and diagnosis result notification unit 16g are programs executed by the control unit And is realized by software.
  • the self-circuit fault diagnosis unit 16a executes self-circuit fault diagnosis.
  • a predetermined diagnosis signal can be input to the self-circuit, and a determination can be made based on whether a normal video signal corresponding to the diagnosis signal is correctly output from the self-circuit.
  • the video input unit 16 b inputs video from the video output units 13, 14, 15 of the video output ECU 11.
  • the input video failure diagnosis unit 16c compares the test image input by the video input unit 16b with a test image stored in advance, and the video output ECU 11 fails based on whether or not the compared data is different. Judge whether or not. That is, when both test images match, the video output ECU 11 is determined to be normal, and when they do not match, the video output ECU 11 is determined to be abnormal.
  • the vehicle signal input unit 16d inputs a vehicle signal from the vehicle signal generation ECU 10 via the in-vehicle network.
  • the video content generation unit 16e generates video content for displaying the security requirement information indicated by the vehicle signal based on the vehicle signal input by the vehicle signal input unit 16d.
  • the failure diagnosis result determination unit 16f determines whether or not the self circuit has failed based on the diagnosis result from the self circuit failure diagnosis unit 16a, and transmits the diagnosis result to the diagnosis result notification unit 16g.
  • the diagnostic result notifying unit 16g transmits the diagnostic result to the video display destination determining unit 12c of the video output ECU 11.
  • the failure diagnosis result determination unit 16f determines whether or not the video output ECU 11 has failed based on the diagnosis result from the input video failure diagnosis unit 16c. Are displayed on the video display unit 17.
  • any of the video display devices 4, 6, 8 or the video output ECU 11 breaks down, the information provided to the driver cannot be displayed.
  • the first video display device 4 displays the safety requirement information necessary for driving, if the first video display device 4 or the video output device 11 breaks down, the safety requirement information can be confirmed and the driving can be performed. May cause trouble.
  • the video output ECU 11 When the video output ECU 11 is activated, as shown in FIG. 7, the video output ECU 11 enters a standby state for receiving diagnostic results from the video display devices 4, 6, and 8 (S 201: NO).
  • diagnosis result When the diagnosis result is received (S201: YES), it is determined whether there is an abnormality in each of the video display devices 4, 6, 8 based on the diagnosis result.
  • normal diagnosis results indicating normality are received from all the video display devices 4, 6 and 8 (S202: NO)
  • the operation mode After transmission to the first video display device 4 (S203), the operation mode is shifted to the normal operation mode and an opening image is transmitted (S204).
  • the test image is transmitted to the first video display device 4 in order to determine whether the video output ECU 11 is abnormal in the first video display device 4 determined to be normal, but the second determined to be normal. You may make it transmit to the video display apparatus 6 or the 3rd video display apparatus 8.
  • the abnormality of the video output ECU 11 may be determined by any one of the video display devices 4, 6 and 8 determined to be normal. If it is determined that the first video display device 4 is out of order, it may be transmitted to the second video display device 6.
  • the first video display device 4 receives the test image from the video output ECU 11 because there is no problem in its own circuit after transmitting the normal diagnosis result indicating normality as described above (S103: NO). It will be in a standby state (S104: NO).
  • the received test image is compared with the test image stored in advance (S105), and it is determined whether there is a difference between the compared data (S106). If there is no difference in the compared data (S106: NO), it is determined that the video output ECU 11 is normal, and the video instructed by the video output ECU 11 is displayed (S107).
  • the second video display device 6 and the third video display device 8 also display the video instructed from the video output ECU 11.
  • the opening image from the video output ECU 11 is displayed on each of the video display devices 4, 6, 8 as in the past. Is displayed.
  • the first video display device 4 determines that the self-circuit has failed (S101). A failure diagnosis result indicating that the image is being transmitted is transmitted to the video output ECU 11 (S102). Next, since the self-circuit is out of order (S103: YES), it is determined to be out of order (S108), the diagnosis result is transmitted to the video output ECU 11 (S109), and the power is turned off (S110).
  • the video output ECU 11 When the video output ECU 11 receives the failure diagnosis result from the first video display device 4 (S202: YES), the video output ECU 11 determines that the first video display device 4 has failed (S205), and the first video display device 4 The content to be displayed is acquired (S206), and it is determined whether it corresponds to the safety requirement information that hinders the operation of the vehicle (S207). In this case, since the content to be displayed on the failed first video display device 4 is the security requirement information (S207: YES), by transmitting the security requirement information to the video display unit 17 in addition to the failure diagnosis result ( S209), prompting the driver to bring the vehicle to the dealer.
  • the example shown in FIG. 4 shows an example in which the first video display device 4 has failed, and the second video display device 6 displays that the first video display device 4 has failed, and security.
  • the requirement information the vehicle speed, the number of revolutions, and the travel distance are displayed.
  • the safety requirement information is displayed on the second video display device 6, so that the driver can display the safety requirements displayed on the second video display device 6. You can drive properly while checking the information.
  • the dealer is requested to be repaired.
  • the video output ECU 11 determines that the information does not correspond to the security requirement information (S207: NO)
  • the video output ECU 11 selects the normal second video display device 6 and third video display device 8 with the higher display priority. Then, the failure diagnosis result is transmitted (S208).
  • the display priority is in the order of the first video display device 4, the second video display device 6, and the third video display device 8 with high visibility. In this case, since the first video display device 4 is out of order, the second video display device 6 is a display target, but the priority of the third video display device 8 having a head-up display function is set to the second video. You may make it make it higher than the display apparatus 6.
  • the test image is not output from the video output ECU 11 as shown in FIG.
  • the video output ECU 11 It is determined that a failure has occurred (S111). Then, the vehicle signal is received from the vehicle signal generation ECU 10 (S112), the failure diagnosis result is displayed on the video display unit 17 (S113), and the minimum safety requirement information for driving is generated based on the vehicle signal. It is displayed (S114).
  • FIG. 5 shows a case where the first video display device 4 determines that the video output ECU 11 is out of order, and is the minimum required for driving based on the vehicle signal received from the vehicle signal generation ECU 10.
  • the video output ECU 11 is informed that the malfunction has occurred, and the driver is encouraged to bring the car to the nearest repair shop. Thereby, even if it is a case where video output ECU11 has failed, the driver
  • the driver since the driver recognizes that the video output ECU 11 is out of order, the driver requests the dealer for repair.
  • Each of the video display devices 4, 6, and 8 diagnoses the self-circuit, and when it is determined that a failure has occurred based on the diagnosis result, the video output ECU 11 notifies the video output ECU 11 of the failure diagnosis result.
  • the failure diagnosis result is notified from any of the display devices 4, 6, 8, it is determined to be normal when displaying the minimum safety requirement information for driving on the video display devices 4, 6, 8.
  • the security requirement information is alternatively displayed on predetermined video display devices 4, 6, and 8. As a result, the driver can check the security requirement information displayed on any of the normal video display devices 4, 6, and 8, and thus can drive appropriately.
  • the video output ECU 11 displays an image indicating that the video display devices 4, 6, 8 determined to be abnormal are out of order when the security requirement information is alternatively displayed on the normal video display devices 4, 6, 8. Therefore, the driver recognizes that the video display devices 4, 6, and 8 are out of order and requests repair.
  • Each video display device 4, 6, 8 compares the test image input from the video output ECU 11 with the test image stored in advance, and determines that the video output ECU 11 has failed based on the comparison result. In such a case, the fact that the video output ECU 11 has failed is displayed, so that the driver recognizes that the video output ECU 11 has failed and requests repair.
  • each of the video display devices 4, 6, and 8 When the video output ECU 11 determines that the video output ECU 11 is abnormal, each of the video display devices 4, 6, and 8 generates safety requirement information based on the vehicle signal input from the vehicle signal generation ECU 10 and displays it on the video display unit 17. Therefore, even if the video output ECU 11 fails, the safety requirement information can be provided to the driver.
  • the video output ECU 11 may output an opening screen as a test image.
  • the video display devices 4, 6, and 8 compare the opening screen input from the video output ECU 11 with the opening screen stored in advance.
  • the operation of transmitting a test image from the video output ECU 11 can be omitted.
  • the alternative display performed by the video display devices 4, 6, and 8 when the video output ECU 11 fails is not the display of the video display unit 17 but may be an icon display using an LED (corresponding to a notification unit).
  • the alternative display performed by the video display devices 4, 6, and 8 when the video output ECU 11 is out of order may be a simple numeric display (corresponding to a notification unit) using a 7-segment LED instead of a display on the display.
  • a failure diagnosis method using watchdog pulses or specific command communication may be used instead of checking a signal indicating a video.
  • the method for detecting the failure of the video display devices 4, 6 and 8 is not the confirmation of the self-failure diagnosis result of the video display devices 4, 6 and 8, but a failure diagnosis method using watchdog pulses or specific command communication may be used. .
  • the method for detecting the failure of the video display devices 4, 6 and 8 may be not the confirmation of the self-failure diagnosis result of the video display devices 4, 6 and 8, but the driver's information on whether or not there is a failure.
  • the presence / absence of video output may be determined by a vehicle-mounted camera instead of checking the self-failure diagnosis result of the video display devices 4, 6, and 8.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Computer Hardware Design (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Optics & Photonics (AREA)
  • Human Computer Interaction (AREA)
  • General Engineering & Computer Science (AREA)
  • Instrument Panels (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
PCT/JP2017/019720 2016-08-02 2017-05-26 車両用映像表示システム Ceased WO2018025475A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201780047071.9A CN109564750A (zh) 2016-08-02 2017-05-26 车辆用影像显示系统
DE112017003885.5T DE112017003885T5 (de) 2016-08-02 2017-05-26 Bildanzeigesystem für ein Fahrzeug
US16/262,983 US11348495B2 (en) 2016-08-02 2019-01-31 Image display system for vehicle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016151976A JP6658391B2 (ja) 2016-08-02 2016-08-02 車両用映像表示システム
JP2016-151976 2016-08-02

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US16/262,983 Continuation US11348495B2 (en) 2016-08-02 2019-01-31 Image display system for vehicle

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WO2018025475A1 true WO2018025475A1 (ja) 2018-02-08

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