JP7343949B1 - Vehicle information control device - Google Patents

Abstract

An object of the present invention is to provide a vehicle information control device that can avoid displaying a message on a display unit while driving in TV mode, or cancel the display when the message is displayed. [Solution] When a condition for displaying a message on the display unit is met while driving in TV mode, the error bit is set to "0", and after transitioning to normal mode when a specific condition is met, the vehicle ECU 2 is set to "0". The message can be hidden by transmitting the vehicle speed pulse to the in-vehicle display device 4 until the error bit becomes "0". Some functions that are unavailable due to the message being displayed will also become available. [Selection diagram] Figure 1

Description

The present invention relates to a vehicle information control device. In particular, the present invention relates to improvements in information control when viewing or operating an on-vehicle display device while the vehicle is running.

2. Description of the Related Art Conventionally, a television canceller has been proposed to enable a passenger in a front passenger seat or a rear seat of a vehicle who is not driving the vehicle to watch television while the vehicle is running. As disclosed in Patent Document 1, a conventional general TV canceler simulates that the vehicle is stopped (stopped) instead of the vehicle speed signal sent to the in-vehicle navigation device. By transmitting the simulated signal, the in-vehicle navigation device determines that the vehicle is stopped even though the vehicle is in motion, thereby making it possible to watch television while the vehicle is in motion.

Japanese Patent Application Publication No. 2013-244955

By the way, the inventors of the present invention have proposed that instead of using the conventional TV canceller described above, it is possible to watch TV while the vehicle is running (DVD, HDMI (registered trademark), VTR, external input, etc.) by converting data using communication protocols such as CAN. We are currently developing a TV canceller that enables navigation operations, etc. Examples of means that enable TV viewing and navigation operations while the vehicle is running through data conversion include modulation of vehicle speed pulses sent to an on-board navigation device (hereinafter also referred to as an on-board display device), and vehicle speed pulses. Examples include changing the number of pulses, cutting off the vehicle speed pulse, and using these in combination. Hereinafter, the state that allows television viewing while the vehicle is running will be referred to as the TV mode, and the genuine state that restricts viewing and operation while the vehicle is traveling will be referred to as the normal mode.

However, in this type of TV canceller, a message may be displayed on the display unit when a specific condition is met while the vehicle is running in the TV mode. This message may not disappear until the ignition key is turned off (including turning off by pressing the start switch), and some functions may not be available.

The present invention has been made in view of this point, and its purpose is to avoid a message from being displayed on the display while driving in TV mode, or to prevent the message from being displayed. The object of the present invention is to provide a vehicle information control device that can cancel this display when the display occurs.

The solution of the present invention for achieving the above object is based on a vehicle information control device that can remove restrictions on viewing and operation of a vehicle-mounted display device while the vehicle is running. Then, this vehicle information control device causes the message to be displayed when a condition for displaying the message on the display unit is satisfied during the viewing or operation while the vehicle is running (during the TV mode described above). The system includes an information rewrite signal transmitter that rewrites the system error information to information that hides the message and transmits it, and the system error information is generated when the in-vehicle display device recognizes an error when the condition is satisfied. The vehicle information control device is connected to the in-vehicle display device and the vehicle ECU via signal lines, and the information rewriting signal transmitting unit rewrites the system error information in the in-vehicle display device. The system also has a function of transmitting the information written to the vehicle ECU, so that the message is hidden by the information rewriting signal transmitting section transmitting a signal in which the system error information is rewritten to the vehicle ECU. When a request is made to switch the in-vehicle display device from a mode that allows viewing and operation while driving to a mode that restricts viewing and operation while driving, the in-vehicle display device remains inactive until the system error information is erased. The present invention is characterized in that a signal based on genuineness is transmitted for rewriting the system error information to information that hides the message.

According to this specific matter, when a condition for displaying a message is satisfied, the information rewriting signal transmitter rewrites the system error information to information that hides the message. Therefore, it is possible to avoid a message from being displayed on the display unit, or to cancel the display when the message is displayed, and it becomes possible to use some functions that were previously unavailable.

In addition, when the conditions for displaying a message on the display unit are met, a signal is sent from the information rewriting signal transmitting unit (a signal for rewriting the message to information that hides it; an example of this signal is a vehicle speed pulse; (but not limited to) is transmitted to the on-vehicle display device. As a result, error recognition is canceled in the vehicle-mounted display device. Then, the information rewriting signal transmitting section transmits the information rewritten from the system error information to the vehicle ECU, thereby preventing the message from being displayed on the display section, or when the message is displayed. This display is canceled.

Additionally, if the mode is switched in response to a request from a passenger during a processing operation to hide a message, the message may be displayed on the display if the processing operation is not completed. . In contrast, with this solution, the message is displayed on the display by sending a signal to rewrite the system error information with information that hides the message until the system error information is deleted. You can definitely prevent this from happening.

Further, the device is provided with a notification means for notifying that the mode is in the switching period until the system error information is deleted, and the mode switching operation is disabled during the period. .

During the period until the system error information is deleted, if the mode is switched in response to a request for switching from a mode that allows viewing and operation while driving to a mode that restricts viewing and operation while driving, a processing operation that deletes the system error information If the process is not completed, a message may be displayed on the display. In view of this, in this solution, when a mode switching request occurs during the period until the system error information is deleted, the crew is notified that the mode switching period is in progress, and the disables mode switching operations. Thereby, it is possible to reliably prevent a message from being displayed on the display section.

In the present invention, when a condition is established for a message to be displayed on the display unit while viewing or operating the in-vehicle display device while the vehicle is running (during TV mode), a system error is detected by a signal transmitted from the information rewriting signal transmitting unit. By rewriting the information with information that hides the message, it is possible to prevent the message from being displayed on the display unit. This allows you to use some functions that were previously unavailable.

1 is a block diagram showing a schematic configuration of an entire in-vehicle audio system including a vehicle information control device according to an embodiment. FIG. 3 is a flowchart showing a main routine of data processing procedures. FIG. 3 is a flowchart diagram showing the procedure of first data processing. It is a flowchart figure which shows the procedure of 2nd data processing. 1 is a block diagram illustrating a first example of a schematic configuration of an entire in-vehicle audio system that enables navigation during television mode; FIG. FIG. 2 is a block diagram illustrating a second example of a schematic configuration of the entire in-vehicle audio system that enables navigation during TV mode.

Embodiments of the present invention will be described below based on the drawings. In this embodiment, a case will be described in which CAN-BUS (Controller Area Network-BUS) communication is adopted as the form of in-vehicle communication. Note that the form of in-vehicle communication is not limited to CAN-BUS communication, but may also employ AVC-LAN (Audio Visual Communication-Local Area Network), LIN (Local Interconnect Network), or the like.

FIG. 1 is a block diagram showing a schematic configuration of the entire in-vehicle audio system 1 including a vehicle information control device 3 according to the present embodiment. The in-vehicle audio system 1 has a configuration in which a vehicle ECU 2, a vehicle information control device 3, and an in-vehicle display device (also referred to as display audio) 4 are connected by a signal line. In addition, this FIG. 1 shows the configuration of an in-vehicle audio system 1 including a vehicle information control device 3 that enables viewing and operation of an in-vehicle display device 4 even while the vehicle is running, and the characteristic parts of the present invention. An excerpt of the configuration is shown.

As shown in FIG. 1, the connection state of the vehicle ECU 2, the vehicle information control device 3, and the vehicle-mounted display device 4 is that the vehicle ECU 2 and the vehicle information control device 3 are connected by CAN signal lines L1, L2 and a signal line L7. It is possible to transmit or receive signals from the vehicle ECU 2 to the vehicle information control device 3. Further, the vehicle information control device 3 and the vehicle-mounted display device 4 are connected by CAN signal lines L3, L4 and signal line L8, and it is possible to transmit or receive signals from the vehicle information control device 3 to the vehicle-mounted display device 4. ing. The signal lines L7 and L8 may be analog signal lines or digital signal lines.

(Vehicle ECU)
Vehicle ECU 2 is a computer that controls the vehicle. Generally, one vehicle is equipped with a plurality of vehicle ECUs, and the vehicle ECU 2 in FIG. 1 corresponds to a set of these plurality of vehicle ECUs. The vehicle ECU 2 includes a CAN signal transmitter 21 and a vehicle speed signal transmitter 22 as transmitters for various signals.

The CAN signal transmitter 21 is connected to the vehicle information control device 3 through CAN signal lines L1 and L2, and is configured to be able to transmit or receive various vehicle information from the vehicle ECU 2 to the vehicle information control device 3 using digital signals. ing. Note that since various vehicle ECUs for controlling the vehicle are connected to the CAN-BUS, the communication data on the CAN-BUS includes all information about the vehicle. For example, information such as the operating state of each of the various control devices mounted on the vehicle is included.

The vehicle speed signal transmitter 22 is configured to be able to transmit a vehicle speed signal (vehicle speed pulse) from the vehicle ECU 2 to the vehicle information control device 3. The transmission path for this vehicle speed signal is the signal line L7. Note that the CAN signal lines L1 and L2 may also be used.

(Vehicle information control device)
The vehicle information control device 3 responds to signals transmitted or transmitted/received from the vehicle ECU 2 to display information (information in TV mode) or information for satisfying conditions that enable viewing and operation of the vehicle-mounted display device 4 while driving. This is a device that transmits or receives information for vehicle position recognition (information in normal mode) to the in-vehicle display device 4.

Further, an LED switch 6 is connected to the vehicle information control device 3 through a signal line L9. The LED switch 6 is a switch installed in the vehicle interior and operated by a passenger, and is used to switch the mode of the in-vehicle audio system 1 including the vehicle information control device 3 between a TV mode and a normal mode. . Note that the configuration may be such that the TV mode and the normal mode can be switched by operating a steering wheel switch instead of the LED switch 6.

When a specific condition is met while driving in TV mode (for example, when the vehicle travels a predetermined distance at a predetermined speed or higher), a message is displayed on the display unit (hereinafter sometimes referred to as the meter panel). (Display of message accompanying error recognition on in-vehicle display device 4). This message may not disappear until the ignition key is turned off (including turning off by pressing the start switch), which may lead to a situation in which certain functions of the vehicle are disabled. Examples of this specific function include support functions related to vehicle driving, but there is also a possibility that various other functions may be disabled.

This embodiment prevents this message from being displayed (or deletes the message once it is displayed within a short period of time), and also avoids a situation where a specific function becomes impossible (or a situation where a specific function becomes possible). It was made possible to do so.

The vehicle information control device 3 includes a signal transmission/reception section 31, a signal control section 32, an LED switch signal input/output section 33, and an information rewriting signal as functional sections realized by a control program stored in a storage medium such as a built-in ROM. A transmitter 34 is provided. The functions of each of these parts will be outlined below.

The signal transmitting/receiving section 31 receives various vehicle information transmitted from the CAN signal transmitting section 21 of the vehicle ECU 2 via the CAN signal lines L1 and L2, and also transmits vehicle speed pulse information from the vehicle speed signal transmitting section 22 via the signal line L7. It can be received via. Further, when the mode of the in-vehicle audio system 1 including the vehicle information control device 3 is the TV mode, the signal transmitting/receiving unit 31 transmits a signal to the in-vehicle display device 4 in response to a signal (for example, a parking brake signal) received from the vehicle ECU 2. The signal is converted into a signal that can be viewed and operated while driving, and is output to the in-vehicle display device 4. Note that the parking brake signal is not limited to one that is received through CAN communication, but may be one that is provided with a parking brake signal generator and received as an analog signal from the parking brake signal generator.

When a specific condition is satisfied while driving in TV mode (for example, when traveling a predetermined distance at a predetermined speed or higher) and a request to switch from TV mode to normal mode occurs, the signal control unit 32 It has a function of canceling the blocking of the vehicle speed pulse information received from the vehicle speed signal transmitting section 22 via the signal transmitting/receiving section 31. That is, in this case, a process of outputting vehicle speed pulse information to the in-vehicle display device 4 for a predetermined period of time is performed. This vehicle speed pulse information corresponds to the "signal based on genuineness" in the present invention.

Operation information from the LED switch 6 is input to the LED switch signal input/output section 33 . For example, if the mode of the in-vehicle audio system 1 including the vehicle information control device 3 is the normal mode and the LED switch 6 is operated, the LED switch signal is input to the LED switch signal input/output section 33. to switch to TV mode. On the other hand, when the mode of the in-vehicle audio system 1 including the vehicle information control device 3 is the TV mode and the LED switch 6 is operated, the LED switch signal is input to the LED switch signal input/output section 33. You will be able to switch to normal mode.

The information rewriting signal transmitter 34 detects a situation in which a message is displayed on the meter panel when a specific condition is met (for example, when traveling a predetermined distance at a predetermined speed or higher) while driving in the TV mode described above. , the controller has a function of transmitting the vehicle speed pulse received from the vehicle ECU 2 to the vehicle-mounted display device 4 for a predetermined period of time when a request for switching from the TV mode to the normal mode occurs. As described above, the signal control unit 32 controls the vehicle speed received from the vehicle speed signal transmission unit 22 when a specific condition is satisfied while driving in the TV mode and a request to switch from the TV mode to the normal mode occurs. Since it has a function of canceling the blockage of pulse information, the information rewriting signal transmitting section 34 transmits the vehicle speed pulse received from the vehicle ECU 2 to the in-vehicle display device 4 for a predetermined period of time according to this process. The determination of whether the specific condition is satisfied is performed by acquiring driving information of the vehicle. For example, this is performed by acquiring vehicle travel information from the vehicle ECU 2. Further, information indicating that the specific condition is satisfied may be input to the signal control section 32 and the information rewriting signal transmission section 34. For example, this information may be input from the vehicle ECU 2.

In a situation where the above-mentioned message is displayed, a flag is raised as error data on the system. Hereinafter, this state will be referred to as the error bit "1" state. Information on the state of this error bit "1" corresponds to system error information in the present invention. In this state of the error bit "1", the information rewrite signal transmitter 34 transmits the vehicle speed pulse received from the vehicle ECU 2 to the vehicle display device 4 for a predetermined period of time, so that the vehicle display device 4 It is recognized that the condition does not satisfy (recognizes that no error has occurred on the system), and the flag is switched to a lowered state as error data on the system. Hereinafter, this state will be referred to as the error bit "0" state. Rewriting the error bit to a state of "0" corresponds to rewriting to information that hides the message in the present invention. Further, the predetermined time corresponds to the time when the error bit switches from "1" to "0", and corresponds to the time "until the system error information is erased" in the present invention.

Further, the information rewriting signal transmitting unit 34 has a function of transmitting information that changes the error bit to “0” by rewriting the error bit to the vehicle ECU 2 when the specific condition is satisfied while driving in the TV mode. It is also equipped with This function corresponds to the function of ``rewriting system error information that causes a message to be displayed with information that hides the message and transmitting it'' in the present invention. As a result, no message will be displayed on the meter panel. This prevents the occupant from feeling uncomfortable. In addition, good visibility of the meter panel can be maintained. Some functions that were previously unavailable will become available. In addition, the state in which this rewritten error bit "0" state information is transmitted to the vehicle ECU 2 is the state in which the vehicle speed pulse is transmitted to the vehicle-mounted display device 4 (when a request for switching to normal mode occurs). Transmission of vehicle speed pulses) continues until the error bit becomes "0".

Here, the timing of switching from the state of error bit "1" to the state of error bit "0" may be when the above-mentioned specific conditions are met and before the message is displayed on the meter panel. However, it may also be the timing when a message is displayed on the meter panel when the specific conditions are met. In the former case, no message will be displayed on the meter panel. In the latter case, although a message is temporarily displayed on the meter panel, the message display is canceled within a short period of time.

Furthermore, since the switching process from the state of error bit "1" to the state of error bit "0" requires a certain amount of time, before this switching process is completed (the information of error bit "0" is sent to the vehicle ECU 2). If a passenger requests to switch to normal mode by operating the LED switch 6 (before the message is no longer displayed on the instrument panel), the system activates that operation and switches to normal mode. Otherwise, a message may be displayed. This is because error information remains inside the in-vehicle display device 4.

Therefore, in this embodiment, when a request to switch to normal mode is made at this timing, the information rewriting signal transmitter 34 sends a vehicle speed pulse to the on-vehicle display device 4 for a predetermined period of time while maintaining the error bit rewriting process described above. When the transmission operation is executed and the state of error bit "1" no longer occurs, control (rewriting processing) for this error bit is released. Furthermore, during the period of control for this error bit, the operation of the LED switch 6 is disabled. This prevents a message from being displayed when switching to normal mode.

Note that while this process is being executed, information to the effect that mode switching is being executed is provided to the occupant. Specifically, when the above-mentioned specific conditions are met (when the conditions that cause a message to be displayed on the meter panel are met) and the LED switch 6 is operated to switch to normal mode, the error described below will occur. Until the bit rewriting process is completed (until the error bit is rewritten and the rewritten information is sent to the vehicle ECU 2 and the message is no longer displayed), the driver is informed that the mode switching is in progress. Provide information on For example, a signal for causing the LED switch 6 to perform a lighting operation or a signal for changing the lighting color may be sent to the LED switch 6, or a message indicating that mode switching is being executed may be displayed on the display 42 of the in-vehicle display device 4. A signal for displaying an image is transmitted to the display 42. Further, audio information indicating that mode switching is being executed may be provided through an on-vehicle speaker or the like. In these cases, the LED switch 6, display 42, in-vehicle speaker, etc. each correspond to the notification means in the present invention.

(In-vehicle navigation device)
The in-vehicle display device 4 includes a navigation section 41, a display 42, a television tuner 43, a vehicle speed signal receiving section 44, and the like.

The navigation unit 41 has a known navigation function that allows the occupant to set a route to a set destination by operating the in-vehicle display device 4. The display 42 displays map information of the set route and displays television images when watching television. The television tuner 43 is connected to a television antenna (not shown), and selects a target broadcasting station channel according to the user's selection from among a plurality of television broadcast waves received by the television antenna. Image data indicating broadcast content based on the television broadcast waves received is transmitted to the display 42. The vehicle speed signal receiving section 44 is capable of receiving a vehicle speed pulse signal through the vehicle speed signal line L8.

(Procedure of processing operation)
Next, the procedure of processing operations in the in-vehicle audio system 1 according to the present embodiment will be explained along the flowcharts of FIGS. 2 to 4. FIG. 2 is a flowchart showing a main routine of data processing procedures in the in-vehicle audio system 1. This flowchart is repeatedly executed at predetermined time intervals while the vehicle is running. Further, FIG. 3 is a flowchart showing the procedure of the first data processing (data processing in television mode) executed in step ST2 of FIG. FIG. 4 is a flowchart showing the procedure of the second data processing (data processing in normal mode) executed in step ST4 of FIG.

First, the main routine will be explained using FIG. While the vehicle is running, first, in step ST1, it is determined whether the current mode is the television mode. If the current mode is not the television mode and the determination in step ST1 is NO, the process returns directly. This is because the above-mentioned message will not be displayed if the device is not in TV mode.

If the current mode is the TV mode and a YES determination is made in step ST1, the process moves to step ST2, where the first data processing (rewriting the error bit and rewriting the information to the vehicle ECU 2), which will be explained below with reference to FIG. transmission) is executed. After this first data processing is completed, the process moves to step ST3, and it is determined whether or not an operation for switching the mode to normal mode (operation of the LED switch 6 by the occupant) has been performed.

If the operation to switch the mode to the normal mode is performed and a YES determination is made in step ST3, the process moves to step ST4, and the second data processing (enables navigation using the in-vehicle display device 4) described below with reference to FIG. However, mode transition invalidation processing is executed until the message is not displayed. After this second data processing is completed, the process moves to step ST5, the mode is switched to normal mode, and the process returns.

Next, the first data processing will be explained using FIG. 3. In this first data processing, first, in step ST11, the CAN1 data value, which is the data on the vehicle ECU 2 side, is rewritten, and the CAN1 data value is transmitted to the in-vehicle display device 4 side. This CAN1 data value is data for enabling television viewing on the in-vehicle display device 4, and is, for example, a parking brake signal. Thereafter, the process moves to step ST12, and the transmission of the vehicle speed information is cut off (continuation of the television mode). Thereby, television viewing on the in-vehicle display device 4 is continued.

Thereafter, the process moves to step ST13, and it is determined whether the above-described condition for displaying a message on the meter panel is satisfied. If this condition is not met and a NO determination is made in step ST13, it is determined that there is no message to be displayed and the process returns.

On the other hand, if the above conditions are met and a YES determination is made in step ST13, the process moves to step ST14, and the in-vehicle display device 4 changes from the state of error bit "1" to the state of error bit "0" (the error bit is rewritten). ), and this information is transmitted to the vehicle ECU 2.

Next, the second data processing will be explained using FIG. 4. In this second data processing, first, in step ST21, the information rewrite signal transmitter 34 starts an operation of transmitting a vehicle speed pulse to the on-vehicle display device 4 for a predetermined period of time, and sets an error bit of "0" due to the start of this operation. A display operation is performed to notify the occupants that the process for achieving the state `` is being executed (that the data processing mode is being executed). For example, the aforementioned operation of lighting the LED switch 6 or changing the lighting color or displaying an image on the display 42 of the in-vehicle display device 4 indicating that mode switching is in progress is performed. Alternatively, the information may be provided by voice.

In step ST22, the mode transition is invalidated because this data processing mode is being executed. That is, while the data processing mode is being executed, the operation of the LED switch 6 by the occupant is disabled.

In step ST23, the CAN1 data value is transmitted to the in-vehicle display device 4 side without being rewritten (passed through). This CAN1 data is data for enabling navigation on the in-vehicle display device 4. Thereafter, the process moves to step ST24, and vehicle speed information (vehicle speed pulse sent from the vehicle ECU 2) is transmitted via the vehicle speed signal line L8. This allows navigation using the in-vehicle display device 4.

Thereafter, in step ST25, it is determined whether or not the error bit on the vehicle-mounted display device 4 side is in the state of “0” due to the output of the vehicle speed pulse to the vehicle-mounted display device 4 described above. In other words, it is determined whether or not the message is not displayed. If the error bit is not in the state of "0" and a NO determination is made in step ST25, it is assumed that a message will be displayed if the mode is shifted to the normal mode, and the process returns to step ST21.

On the other hand, if the determination in step ST25 is YES, it is assumed that no message will be displayed even if the process continues to the normal mode, and the process proceeds to the normal mode and returns.

As explained above, in this embodiment, even if specific conditions are met while driving in TV mode, it is possible to prevent a message from being displayed on the meter panel by rewriting the error bit. This eliminates the possibility of causing discomfort to the occupants. In addition, good visibility of the meter panel can be maintained. Additionally, as the message is displayed, some functions that were previously unavailable become available.

Furthermore, in this embodiment, when a mode switching request occurs during the period until the system error information is erased (until the error bit becomes "0" state), it is possible to indicate that the mode switching period is in progress. In addition to informing the occupants of this, mode switching operations are disabled during this period. This can reliably prevent messages from being displayed on the meter panel.

- Example of enabling navigation during TV mode -
Next, in addition to the configuration of the embodiment described above, an example will be described in which navigation is enabled during the television mode. FIG. 5 is a block diagram showing the first example, and FIG. 6 is a block diagram showing the second example.

In what is shown in FIG. 5, a vehicle speed pulse generator 5 is connected to a vehicle ECU 2 and an on-vehicle display device 4 via signal lines L10 and L11. The vehicle speed pulse generator 5, the vehicle ECU 2, and the vehicle-mounted display device 4 may be connected to each other by an analog signal line or by a CAN signal line. When in the TV mode, the vehicle speed pulse generator 5 modulates the vehicle speed pulse to include a pulse waveform representing vehicle stop information, and transmits this information to the vehicle display device 4 to generate vehicle stop information (vehicle stop information). The in-vehicle display device 4 can be viewed and operated due to the fact that the in-vehicle display device 4 includes a pulse waveform representing stop information.

Here, signal processing to enable viewing and operation while the vehicle is running will be briefly described. The vehicle speed signal from the vehicle speed pulse generator 5 is generated as a vehicle speed pulse, and is generated as a modulated waveform in which a pulse waveform representing vehicle speed information and a pulse waveform representing vehicle stop information appear alternately. In the normal mode, the vehicle speed signal is transmitted to the vehicle-mounted display device 4 without being converted or modulated. As a result, the in-vehicle display device 4 can update the position of the own vehicle by using this vehicle speed signal, and the position of the own vehicle recognized by the in-vehicle display device 4 can be prevented from shifting from the actual position. Therefore, sufficient accuracy of position recognition of the own vehicle can be obtained. Note that the pulse width, pulse period, and duty ratio of the vehicle speed signal change depending on the vehicle speed.

On the other hand, in the TV mode, the vehicle speed signal is converted and modulated and transmitted to the vehicle-mounted display device 4. Here, the modulated vehicle speed signal is generated as a modulated waveform in which a pulse waveform representing vehicle speed information and a pulse waveform representing vehicle stop information appear alternately. For example, the ratio of the time length of the pulse waveform representing vehicle speed information to the time length of the pulse waveform representing vehicle stop information is set to approximately 1:2. This ratio is not limited to this. Such modulation of the vehicle speed pulse allows television viewing while the vehicle is running. Other configurations and operations are similar to those of the embodiment described above.

The one shown in FIG. 6 has a configuration in which a vehicle speed pulse generator 35 having the same function as the vehicle speed pulse generator 5 is built into the vehicle information control device 3. In this example, the vehicle information control device 3 is capable of transmitting the vehicle speed pulse from the vehicle speed pulse generator 35 to the on-vehicle display device 4 . Other configurations and operations are similar to those of the embodiment described above.

The examples shown in FIGS. 5 and 6 also have the same effect as the embodiment described above (a message is displayed on the meter panel even if certain conditions are met while driving in TV mode). (e.g., things that are not done) can be played.

-Other embodiments-
Note that the present invention is not limited to the embodiments and examples described above, and all modifications and applications can be made within the scope of the claims and equivalent ranges thereof.

For example, in the above embodiment and each example, in the second data processing, delay processing (LED switch 6) and a display operation to notify the passenger that the process is being performed. This is because the data processing mode requires a predetermined time, but if the time required for the data processing mode is short, these delay processes and notification to the occupants may be unnecessary. Further, even if the data processing mode requires a predetermined time, delay processing may be performed so that the notification to the occupants is not performed. Note that the time required for this data processing mode (the predetermined time) is not limited to a fixed time, and may vary depending on the processing content. In this case, the processing time will be ascertained, and the time for delay processing and notification to passengers will be changed accordingly.

Further, in the embodiment and each example, the vehicle information control device 3 according to the present invention is added to the vehicle audio system 1 that enables television viewing on the vehicle display device 4 because the vehicle display device 4 is equipped with the television tuner 43. We have explained the case where it is applied. The vehicle information control device 3 according to the present invention is not limited to this, but can also be applied to an in-vehicle audio system 1 configured to allow video viewing through external input (external input using an interface such as HDMI). It is.

INDUSTRIAL APPLICATION This invention is applicable to the vehicle information control apparatus which can avoid displaying a message on a meter panel while driving in TV mode.

2 Vehicle ECU
3 Vehicle information control device 34 Information rewriting signal transmitter 4 In-vehicle display device

Claims (2)

In a vehicle information control device that makes it possible to remove restrictions on viewing and operation of an in-vehicle display device while driving,
If a condition is established for a message to be displayed on the display unit during the viewing or operation while the vehicle is running, system error information that causes the message to be displayed is rewritten to information that hides the message. Equipped with an information rewriting signal transmitter to transmit ,
The system error information is generated when the in-vehicle display device recognizes an error when the condition is met;
The vehicle information control device is connected to each of the in-vehicle display device and the vehicle ECU via a signal line,
The information rewriting signal transmitting unit also has a function of transmitting information rewritten from the system error information in the in-vehicle display device to the vehicle ECU,
The message is hidden by the information rewriting signal transmitting unit transmitting a signal rewriting the system error information to the vehicle ECU,
When a request for switching from a mode that allows viewing and operation while driving to a mode that restricts the on-vehicle display device occurs, the on-vehicle display device displays a genuine message until the system error information is erased. 1. A vehicle information control device, wherein the vehicle information control device transmits a signal for rewriting the system error information to information that hides the message. The vehicle information control device according to claim 1,
The device is provided with a notification means for notifying that the mode is in the switching period until the system error information is deleted, and the mode switching operation is disabled during the period. Characteristic vehicle information control device.

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