JP6036423B2 - Display control apparatus and vehicle display system - Google Patents

Description

  The present invention relates to a display control device and a vehicle display system.

  In recent years, systems for navigating vehicle drivers by displaying map information and travel routes on mobile phones (mobile devices) have been increasing. Further, Patent Document 1 discloses that vehicle information such as vehicle speed is displayed on a portable device. From such a tendency, the inventor assumes that a meter device is not mounted on the instrument panel and vehicles designed to display a meter on a portable device will be distributed in the future market.

JP 2004-146976 A

  In the case of a vehicle having a power source, there are items (essential items) that must be displayed to the occupant, such as vehicle speed, travel distance, and remaining energy. Therefore, assuming a vehicle with the above-described design, a mechanism for reliably preventing the user from driving the vehicle in a state where the essential items are not displayed is necessary.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a display control device and a vehicle display system that prevent a vehicle from running while no essential items are displayed.

  One disclosed invention employs the following technical means to achieve the above object. In addition, the code | symbol in the parenthesis described in the claim shows the correspondence with the specific means as described in embodiment mentioned later as one aspect, Comprising: The technical scope of the disclosed invention is limited Not what you want.

One of the disclosed inventions is based on the premise that the display control device displays vehicle information transmitted from the in-vehicle transmitter (13a) on the portable device (40) carried by the vehicle occupant. And this invention is provided with the vehicle-mounted receiver (13b) which receives the display item currently displayed on the portable apparatus from a portable apparatus. This invention is provided with the determination means (14a) which determines whether the received display item contains all the essential items which are indispensable to display when driving | running | working a vehicle. The present invention is provided with permission means (14b) for permitting the vehicle to travel on condition that it is determined by the determination means that all the essential items are included, and it is determined that all the essential items are not included. For this reason, the vehicle is not allowed to travel .

  As described above, according to the present invention, the vehicle is allowed to travel on the condition that all the required items are included in the display items of the mobile device. Can be prevented from driving.

1 is an overall block diagram showing an embodiment of a display control device and a vehicle display system according to the present invention. The flowchart which shows the procedure of the control which the microcomputer of FIG. 1 implements.

  Hereinafter, an embodiment of a display control device and a vehicle display system according to the present invention will be described with reference to the drawings.

  Various electronic control devices (ECUs 10, 20, and 30) shown in FIG. 1 are mounted on a vehicle, connected to a communication line L so as to be able to communicate with each other, and share one bus communication path. That is, the plurality of ECUs 10, 20, and 30 are connected to an in-vehicle LAN (Local Area Network).

  The navigation ECU 10 that is one of these ECUs 10 to 30 includes a microcomputer (microcomputer 14) that includes a known central processing unit (CPU) and a memory. The microcomputer 14 performs display control so that map information, current position information, a travel route, and the like are displayed on the display device 11. Thereby, the vehicle driver is navigated for driving. The display device 11 is mounted on a vehicle.

  Furthermore, the navigation ECU 10 includes a communication device 13 that performs wireless communication with a portable device 40 carried by a vehicle occupant (for example, a driver). Specific examples of the portable device 40 include a mobile phone and a portable computer. By this wireless communication, the portable device 40 is connected to the in-vehicle LAN.

  Various vehicle information P1, P2, and P3 transmitted from the communication device 13 can be displayed on the display screen 41 of the portable device 40. Specific examples of the vehicle information include the vehicle travel speed (vehicle speed P1), the vehicle travel distance P2, the fuel remaining amount P3 of the engine 21 serving as a travel drive source, the rotational speed of the engine 21, the temperature of the engine coolant, the vehicle interior Temperature, outside air temperature, etc. are mentioned. According to regulations, there are items (essential items) that must be displayed when the vehicle travels. In this embodiment, display items of the vehicle speed P1, the travel distance P2, and the fuel remaining amount P3 are handled as essential items.

  The vehicle according to the present embodiment has a meterless design in which an in-vehicle meter that displays vehicle information of these essential items is not fixedly mounted on the vehicle, and the portable device 40 is used instead of the conventional in-vehicle meter. That is, a holding portion 42 that holds the portable device 40 is provided in the vehicle interior. And the holding | maintenance part 42 is arrange | positioned in the position where the vehicle driver | operator can visually recognize the vehicle information P1-P3 displayed on the portable device 40 hold | maintained at the holding | maintenance part 42. FIG.

  The engine ECU 20 that is one of the plurality of ECUs 10 to 30 controls the operation of the engine 21. For example, a fuel injection valve that injects fuel used for combustion of the engine 21, a throttle valve that adjusts the amount of intake air sucked into the combustion chamber, an ignition device that ignites an air-fuel mixture in the combustion chamber, and an engine that rotates a crankshaft Controls the operation of the starter motor and the like to be started. An air conditioner ECU 30 that is one of the plurality of ECUs 10 to 30 controls the operation of an air conditioner (not shown).

  In the present embodiment, the navigation ECU 10 functions as a display control device, and the procedure of processing performed by the microcomputer 14 of the navigation ECU 10 will be described below with reference to the flowchart of FIG. First, in step S10 of FIG. 2, it is determined whether or not the accessory switch is turned on by the user. The accessory switch is a switch that performs on / off control of power supply to the various ECUs 10 to 30. If the accessory switch has been turned on (S10: YES), in step S20, the communication device 13 performs an authentication process (pairing) so as to connect the portable device 40 to the in-vehicle LAN.

  In subsequent step S30, the various vehicle information described above is acquired from the other ECUs 20 and 30 through the in-vehicle LAN. Then, the communication device 13 is controlled so that the transmitter 13 a of the communication device 13 transmits the acquired vehicle information to the portable device 40. The portable device 40 displays the vehicle information transmitted from the transmitter 13 a on the display screen 41 and transmits the item (display item) of the vehicle information displayed on the display screen 41 to the communication device 13. Here, it is only necessary to transmit the display item, and it is not necessary to transmit the numerical value of the item.

  In step S40, information on display items received by the receiver 13b of the communication device 13 is acquired. In a succeeding step S50, it is determined whether or not all the essential items are included in the received display item. The microcomputer 14 at the time of carrying out this determination corresponds to the determination means 14a. If it is determined that all the essential items are included (S50: YES), in the next step S60, a permission signal for permitting driving of the engine 21 is transmitted to the engine ECU 20. The microcomputer 14 when the permission signal is transmitted corresponds to the permission means 14b. On the other hand, when it is determined that all the essential items are not included (S50: NO), transmission of the permission signal is stopped in step S70.

  For example, if the engine ECU 20 has not received the permission signal, even if the vehicle driver operates the key switch to drive the starter motor to start the engine 21, the engine ECU 20 does not operate the starter motor, the fuel injection valve, the throttle Do not drive the valve and ignition device. Thereby, engine starting is prohibited. The engine start condition includes various conditions such as a parking brake being applied and a shift lever not being operated in the travel range. If the permission signal is received after satisfying these conditions, the engine ECU 20 drives and controls the starter motor, the fuel injection valve, the throttle valve, and the ignition device to start the engine 21.

  When the permission signal is transmitted in step S60, the communication device 13 is controlled so that the transmitter 13a transmits the permission message signal to the portable device 40 in the subsequent step S80. The portable device 40 that has received the permission message signal notifies the vehicle driver that the engine start is permitted because the display items are not legally problematic. This notification may be message display on the display screen 41 or may be voice output.

  If the transmission of the permission signal is stopped in step S70, the communication device 13 is controlled so that the transmitter 13a transmits the prohibition message signal to the portable device 40 in the subsequent step S90.

  The portable device 40 that has received the prohibition message signal notifies the vehicle driver of the reason why traveling is not permitted. For example, a message stating that “running is not permitted because not all essential items are displayed” is displayed on the display screen 41 and is guided by voice. Thus, the microcomputer 14 at the time of the notification command corresponds to the reason notification command means 14c.

  Furthermore, the portable device 40 that has received the prohibition message signal notifies the vehicle driver which essential items are missing in the display items. For example, when the vehicle speed P1, which is an essential item, is not displayed, a message stating that “running is not permitted because the vehicle speed P1 is not displayed” or a message prompting the vehicle speed P1 to be displayed. Is displayed on the display screen 41 and guided by voice. The microcomputer 14 that is instructing the notification in this way corresponds to the item notification command means 14d.

  As described above, according to the present embodiment, the receiver 13b receives the display items displayed on the mobile device 40, and it is determined that all the required items are included in the received display items. A permission signal is transmitted to the engine ECU 20 to allow the engine 21 to start. Therefore, since start of the engine 21 is prohibited unless all the essential items are displayed on the portable device 40, it is possible to prevent the user from driving the vehicle in a state where all the essential items are not displayed.

  Furthermore, according to this embodiment, since the reason notification command means 14c is provided, the vehicle driver is notified of the reason when traveling is not permitted because all the essential items are not displayed. Therefore, since the driver can grasp the reason why the engine 21 does not start even when the key switch is turned on, the driver can be prompted to display all essential items on the portable device 40.

  Further, according to the present embodiment, since the item notification command means 14d is provided, it is determined whether any of the essential items are insufficiently displayed when the travel is not permitted because all the essential items are not displayed. The person is notified. Therefore, when the driver operates to change the setting of the portable device 40 so that all the required items are displayed, the change operation can be performed after grasping the required items that are lacking. It can be improved.

(Other embodiments)
The present invention is not limited to the description of the above embodiment, and may be modified as follows. Moreover, you may make it combine the characteristic structure of each embodiment arbitrarily, respectively.

  In the embodiment shown in FIG. 1, the navigation ECU 10 functions as a display control device. However, the communication device 13 that wirelessly communicates with the portable device 40 is provided in the other ECUs 20, 30, and the ECUs 20, 30 are displayed. It may be made to function as. Alternatively, a dedicated ECU that functions as a display control device may be mounted on the vehicle.

  In the embodiment shown in FIG. 1, the present invention is applied to a vehicle that starts traveling by the engine 21, but may be applied to a vehicle that starts traveling by an electric motor. In this case, if the permission signal has not been transmitted, control may be performed so as to prohibit the driving of the electric motor, thereby prohibiting traveling.

  In the embodiment illustrated in FIG. 1, the portable device 40 performs notification based on the permission message signal and the prohibition message signal. However, the notification is performed by a device other than the portable device 40, for example, displayed on the display device 11. You may implement.

  The message signal transmission in steps S80 and S90 in FIG. 2 may be stopped when a predetermined time has elapsed from the start of transmission.

  When the vehicle is determined to be affirmative in step S50 at the start of traveling, but is negatively determined in step S50 during the subsequent traveling, the following treatment is desirable. In other words, the user is prompted to display all the essential items, and if not all the essential items are displayed, a message display or voice guidance for notifying that the vehicle is to be stopped is displayed. When the negative determination in step S50 continues for a predetermined time, the vehicle speed is gradually reduced to forcibly stop the traveling.

  DESCRIPTION OF SYMBOLS 10 ... Display control apparatus, 13a ... In-vehicle transmitter, 13b ... In-vehicle receiver, 14a ... Determination means, 14b ... Permit means, 14c ... Reason notification command means, 14d ... Item notification command means, 40 ... Portable apparatus.

Claims (4)

In the display control apparatus for displaying the vehicle information transmitted from the in-vehicle transmitter (13a) on the portable device (40) carried by the vehicle occupant,
An in-vehicle receiver (13b) for receiving display items displayed on the portable device from the portable device;
A determination means (14a) for determining whether or not the received display items include all the essential items that are essential to be displayed when the vehicle is driven;
Provided with permission means (14b) for allowing the vehicle to travel on condition that the determination means determines that all of the essential items are included ,
The display control device according to claim 1 , wherein the vehicle is not allowed to travel because it is determined that all of the essential items are not included .   It is provided with a reason notification command means (14c) for instructing the vehicle occupant to notify the reason when the travel is not permitted because it is determined that all the essential items are not included. The display control apparatus according to claim 1.   If the travel is not permitted because it is determined that all the essential items are not included, the display item is instructed to inform the vehicle occupant of which essential items are missing. The display control device according to claim 1, further comprising item notification command means (14 d).   A vehicle display system comprising the display control device according to claim 1 and the portable device.

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