JP5437103B2 - Information display device and vehicle - Google Patents

Description

  The present invention relates to an information display device and a vehicle.

  By using an information display device having a multiple display screen for displaying a plurality of different information on the same screen for an instrument panel of an automobile, a limited display space can be used effectively.

  For example, in the apparatus of Patent Document 1, in order to effectively use the display space, the display of information of a type that is less frequently used is converted into an icon or a layout is changed. On the other hand, even in the type of information that is iconified by the user because it is not frequently used, the information related to the warning information is displayed in a predetermined size by releasing the iconification when the alarm display is required. . Further, the icon display of the information display is prohibited during the alarm display.

  In such an information display device having a multiplex display screen that can be freely laid out, consideration is given so that the user does not overlook the alarm display by using a predetermined display pattern when displaying the alarm.

JP-A-10-185625

  Here, consider a case where the vehicle falls into an abnormal state that requires a warning display. For example, when an automobile overheats, an increase in cooling water temperature is seen as a precursor. Or when the tire of a car bursts, a decrease in the air pressure in the tire is seen as a precursor.

  In an information display device having a conventional multiple display screen that can be laid out freely, consideration is given so as not to be overlooked by the user when displaying an alarm. However, the conventional information display device having a layout-free multiple display screen cannot display the process of shifting from the normal state to the abnormal state.

  For example, in Patent Document 1, when an alarm is displayed, the iconization is canceled and an alarm display having a predetermined size is performed. However, in patent document 1, the state before alarm display is not displayed. Therefore, the user is suddenly informed of the occurrence of an abnormal situation by the warning display, and is not informed of any precursors.

  The present invention has been made under such a background, and an object of the present invention is to provide an information display device and a vehicle that can accurately notify the state of the vehicle including a warning of an abnormal state.

  One aspect of the present invention is an information display apparatus. That is, the information display device of the present invention is an information display device that controls display or non-display of vehicle information indicating vehicle states that can be displayed on the display screen on the display screen, input means for inputting vehicle information, When the hidden vehicle information indicates that the vehicle is in an abnormal state, the vehicle information is forcibly displayed on the display screen by canceling the non-display. Further, the vehicle information includes display control means for displaying on the display screen that the vehicle state is abnormal when the vehicle state indicates that the vehicle state is abnormal.

  Further, the display control means can forcibly return the displayed vehicle information to non-display again when the vehicle recovers from a state showing a sign that the vehicle state is abnormal.

  Another aspect of the present invention is a viewpoint as a vehicle. That is, the vehicle according to the present invention includes an input means for inputting vehicle information in a vehicle having an information display device that controls display or non-display of vehicle information indicating the state of the vehicle that can be displayed on the display screen. When the hidden vehicle information indicates that the vehicle is in an abnormal state, the vehicle information is forcibly canceled and the vehicle information is displayed on the display screen. Furthermore, the vehicle information includes display control means for displaying on the display screen that the vehicle state is abnormal when the vehicle information indicates that the vehicle state is abnormal.

  Further, the display control means can forcibly return the displayed vehicle information to non-display again when the vehicle recovers from a state showing a sign that the vehicle state is abnormal.

  ADVANTAGE OF THE INVENTION According to this invention, the state of the vehicle containing the precursor of an abnormal state can be notified correctly.

It is a block block diagram of the information display apparatus of embodiment of this invention. It is a figure which shows an example of the instrument panel which has the multiple display screen of FIG. It is a figure which shows an example which changed the layout of the display of the clock in the multiple display screen of FIG. 1 and FIG. It is a figure which shows the example of a display of the multiple display screen when the water temperature of a cooling water is more than predetermined value, or exceeds predetermined value. It is a figure which shows the example of a display of a multiple display screen when engine ECU (Electric Control Unit) issues the warning of an engine overheat. It is a flowchart which shows the operation | movement of the interruption display determination in the interruption determination process part of meter ECU.

(About the information display apparatus 1 of embodiment of this invention)
The information display device 1 according to the embodiment of the present invention has a multiple display screen 2, can display various types of information on the same screen, and can change the layout or switch between display and non-display. It is possible to display information on which an abnormality has occurred preferentially and display the alarm display so that the user does not miss it. The information display device 1 is mounted on a vehicle (not shown).

(Constitution)
As shown in FIG. 1, the information display device 1 includes a multiple display screen 2 and a meter ECU 3 (display control means in the claims). In the example of FIG. 1, the meter ECU 3 is connected to an engine ECU 4, and the meter ECU 3 and the engine ECU 4 perform CAN (Control Area Network) communication. Further, the coolant temperature information of the coolant is transmitted to the engine ECU 4 from the water temperature sensor 6 in the engine 5. Thereby, the coolant temperature information in the engine 5 and the alarm information when the engine 5 falls into an overheat state are transmitted from the engine ECU 4 to the meter ECU 3 via CAN communication.

  Further, the meter ECU 3 includes a display processing unit 10 (part of display control means in claims), an interrupt determination processing unit 11 (part of display control means in claims), an averaging processing unit 12, and CAN reception. It has a processing unit 13 (a part of input means in the claims) and a CAN communication unit 14 (a part of input means in the claims). The engine ECU 4 includes a CAN communication unit 15, a CAN transmission processing unit 16, an averaging unit 17, and a sensor input processing unit 18.

  The multiple display screen 2 is configured by, for example, a liquid crystal display panel or an organic EL (Electro Luminescence) display panel. In the example of FIG. 1, an accelerator opening display 20, an instantaneous fuel consumption display 21, a water temperature display 22, a shift position display 23, a date display 24, and a time display 25 are displayed on the multiple display screen 2. For convenience of explanation, in FIG. 1, the display area where the water temperature display 22 and the shift position display 23 are displayed is called a shift display section 26, and the display area where the accelerator opening display 20 and the instantaneous fuel consumption display 21 are displayed. Will be referred to as a sub-display unit 27.

  In the meter ECU 3, the display processing unit 10 controls the normal display of the multiple display screen 2. The interrupt determination processing unit 11 controls display (interrupt display, alarm display) other than normal on the multiple display screen 2. The averaging unit 12 removes the influence of disturbances such as noise by averaging data such as water temperature information input from the engine ECU 4 in units of a predetermined period. The CAN reception processing unit 13 performs reception processing in CAN communication with the engine ECU 4 and the like. The CAN communication unit 14 controls CAN communication with the engine ECU 4 and the like.

  Note that when the CAN reception processing unit 13 receives the alarm information, the averaging process is unnecessary, so the interrupt determination is made by skipping the averaging processing unit 12 (actually through the averaging processing unit 12). Alarm information is transmitted to the processing unit 11.

  In the engine ECU 4, the CAN communication unit 15 controls CAN communication with the meter ECU 3 and the like. The CAN transmission processing unit 16 performs transmission processing in CAN communication with the meter ECU 3 and the like. The averaging processor 17 removes the influence of disturbances such as noise by averaging the data from the water temperature sensor 6 and the like for each predetermined period. The sensor input processing unit 18 converts water temperature information such as a voltage value or a pulse duty ratio from the water temperature sensor 6 into water temperature information as a temperature value.

  As shown in FIG. 2, the multiple display screen 2 shown in FIG. 1 is arranged on the instrument panel 30 of the vehicle together with other instruments. In the example of the instrument panel in FIG. 2, in addition to the multiple display screen 2, a vehicle speed meter 31, an engine speed meter 32, a front air tank air pressure meter 33F, a rear air tank air pressure meter 33R, a fuel remaining amount meter 34, and a travel distance 35 in total.

  Each of the above-described ECUs includes a calculation unit, a memory, an I / O port, and the like (not shown). The arithmetic unit is configured by, for example, a CPU (Central Processing Unit), an ASIC (Application Specific Integrated Circuit), a microprocessor (microcomputer), a DSP (Digital Signal Processor), and the like.

(Operation)
Next, operations of the display processing unit 10 and the interrupt determination processing unit 11 of the meter ECU 3 will be described with reference to FIGS.

  The display processing unit 10 changes the layout of the multiple display screen 2 by an operation by a user (driver or the like) from an operation unit (not shown). In the example of FIG. 3, the water temperature gauge 22 displayed in FIGS. 1 and 2 is not displayed, and the clock 40 is displayed at the display position of the water temperature gauge 22 of FIGS. In FIG. 3, the date display 24 and the time display 25 in FIGS. 1 and 2 are not displayed along with the display of the clock 40.

  When the interrupt determination processing unit 11 determines an abnormality in the water temperature information transmitted from the averaging processing unit 12 in the layout as shown in FIG. 3, as shown in FIG. The display of 40 is not displayed and the water temperature gauge 22 is displayed.

  Further, when the interrupt determination processing unit 11 receives alarm information transmitted from the CAN reception processing unit 13, an alarm is displayed in the alarm display area 50 as shown in FIG. The alarm display area 50 is displayed larger than other display areas so that the driver does not miss it. In the example of FIG. 5, the alarm display region 50 is set so as to overlap the accelerator opening display 20 and the instantaneous fuel consumption display 21 in the sub display unit 27.

  The operation of the interrupt determination processing unit 11 of the meter ECU 3 will be described with reference to the flowchart of FIG.

  Interrupt display determination start: When the meter ECU 3 is activated, the interrupt determination processing unit 11 proceeds to the process of step S1.

  Step S1: The interrupt determination processing unit 11 monitors the water temperature information transmitted from the averaging processing unit 12, and determines whether or not the water temperature is 109 ° C. or higher. The interrupt determination processing unit 11 monitors the water temperature information transmitted from the averaging processing unit 12, and when the water temperature is 109 ° C. or higher (Yes in step S1), the process proceeds to step S2. On the other hand, when the water temperature is lower than 109 ° C. (No in step S1), the interrupt determination processing unit 11 repeatedly executes the process of step S1.

  Step S <b> 2: The interrupt determination processing unit 11 determines whether or not the water temperature gauge 22 is displayed on the shift display unit 26 of the multiple display screen 2. When the water temperature gauge 22 is displayed on the shift display unit 26 of the multiple display screen 2 (Yes in step S2), the interrupt determination processing unit 11 proceeds to the process of step S5. On the other hand, when the water temperature gauge 22 is not displayed on the shift display unit 26 of the multiple display screen 2 (No in step S2), the interrupt determination processing unit 11 proceeds to the process of step S3.

  Step S <b> 3: The interrupt determination processing unit 11 determines whether or not the water temperature gauge 22 is displayed on the sub display unit 27 of the multiple display screen 2. If the water temperature gauge 22 is displayed on the sub display unit 27 of the multiple display screen 2 (Yes in step S3), the interrupt determination processing unit 11 proceeds to the process of step S5. On the other hand, when the water temperature gauge 22 is not displayed on the sub display unit 27 of the multiple display screen 2 (No in step S3), the interrupt determination processing unit 11 proceeds to the process of step S4.

  Step S4: The interrupt determination processing unit 11 interrupts and displays the water temperature gauge 22 on the multiple display screen 2, and proceeds to the process of step S5. It is assumed that the position for interrupt display is determined in advance. For example, as shown in FIG. 4, the water temperature gauge 22 is interrupted and displayed at the top of the shift display unit 26 instead of the display of the clock 40.

  Step S5: The interrupt determination processing unit 11 determines whether or not overheat warning information is input from the engine ECU 4. When the overheat warning information is input (Yes in step S5), the interrupt determination processing unit 11 proceeds to the process of step S6. On the other hand, when the overheat warning information is not input (No in step S5), the interrupt determination processing unit 11 proceeds to the process in step S7.

  Step S6: The interrupt determination processing unit 11 displays an alarm in the alarm display area 50 of the multiple display screen 2 and ends the process.

  Step S7: The interrupt determination processing unit 11 monitors the water temperature information transmitted from the averaging processing unit 12, and determines whether the water temperature is 105 ° C. or lower. The interrupt determination processing unit 11 monitors the water temperature information transmitted from the averaging processing unit 12, and when the water temperature is 105 ° C. or lower (Yes in step S7), the process proceeds to step S8. On the other hand, the interrupt determination processing unit 11 monitors the water temperature information transmitted from the averaging processing unit 12, and when the water temperature is 105 ° C. or higher (No in step S7), the process returns to the process in step S4.

  Step S8: The interrupt determination processing unit 11 cancels the interrupt display of the water temperature gauge 22 on the multiple display screen 2 (that is, returns the water temperature gauge 22 to non-display again) and ends the process.

(effect)
As described above, the interrupt determination processing unit 11 indicates a state where the vehicle state indicated by the non-displayed vehicle information (for example, display of the water thermometer) is abnormal (for example, as a sign of overheating). When the water temperature rises to 109 ° C), the vehicle information is forcibly displayed by canceling the non-display, and the vehicle state indicated by the forcibly displayed vehicle information is abnormal. In this case, since information (warning display) indicating that is displayed, it is possible to notify the user of the sign before the vehicle condition becomes abnormal.

  That is, the information display device 1 forcibly displays information that exhibits a value that is not a predetermined normal value as a first step. As a result, the user (driver or the like) can detect the precursor before falling into an abnormal state in which an alarm is issued, and can take measures to avoid the abnormal state if possible.

  Further, when the abnormal state is returned to the normal state by the abnormal state avoidance treatment, the display indicating the sign of the abnormal state is canceled (that is, the display is again turned off) (step S8), so that the abnormal state is avoided. This eliminates the need for checking the display and switching the display.

  Furthermore, as a second stage, the information display apparatus 1 can perform warning display so that the user does not overlook the warning by switching to a predetermined warning display pattern for the information on which the warning has been issued.

(About the embodiment using the program)
Moreover, each part of meter ECU3 may be comprised by the general purpose information processing apparatus which operate | moves by a predetermined program. For example, a general-purpose information processing apparatus includes a memory, a CPU (Central Processing Unit), an input / output port, and the like. The CPU of the general-purpose information processing apparatus reads and executes a control program as a predetermined program from a memory or the like. Thereby, the function of each part of meter ECU3 is realized in a general-purpose information processor. As for other functions, functions that can be realized by software can be realized by a general-purpose information processing apparatus and a program. An ASIC, a microprocessor (microcomputer), a DSP, or the like may be used instead of the CPU described above.

  Even if the control program executed by the general-purpose information processing apparatus is stored in the memory or the like of the general-purpose information processing apparatus before shipment of the meter ECU 3, the general-purpose information processing apparatus is shipped after the meter ECU 3 is shipped. It may be stored in a memory or the like. A part of the control program may be stored in a memory of a general-purpose information processing device after the meter ECU 3 is shipped. Even if the control program stored in the memory or the like of a general-purpose information processing apparatus after shipment of the meter ECU 3 is, for example, an installed program stored in a computer-readable recording medium such as a CD-ROM, What was downloaded via transmission media, such as the internet, may be installed.

  The control program includes not only a program that can be directly executed by a general-purpose information processing apparatus, but also a program that can be executed by being installed on a hard disk or the like. Also included are those that are compressed or encrypted.

  As described above, by realizing the function of the meter ECU 3 with a general-purpose information processing device and a program, it becomes possible to flexibly cope with mass production and specification change (or design change).

(Other embodiments)
The embodiment of the present invention can be variously modified without departing from the gist thereof. In the above-mentioned embodiment, although the example based on the water temperature information from the water temperature sensor 6 of the engine 5 was described, this is an example. For example, the information display device 1 displays an interruption of the air pressure when the tire air pressure is equal to or lower than a predetermined value based on air pressure information from an air pressure sensor that detects the air pressure in the tire (not shown), and indicates a sign of burst. May be notified to the user.

  Alternatively, the information display device 1 displays an interrupt display based on the information on the remaining amount of fuel from the remaining fuel amount sensor if the remaining fuel amount is not displayed when the remaining fuel amount reaches, for example, 30%. If the remaining amount of fuel becomes 10% or less of the whole, for example, an alarm may be displayed.

  In addition, the information display device 1 can display both the interrupt display and the alarm display on the multiple display screen 2 step by step based on information from all sensors.

  Note that “Will the water temperature exceed 109 ° C.” in step S1 of the flowchart of FIG. 6 is “Would the water temperature exceed 109 ° C.”, and “Will the water temperature be 105 ° C. or less” in step S7? It may be less than?

  Further, 109 ° C. in step S1 and 105 ° C. in step S7 in the flowchart of FIG. 6 are not limited to these numerical values, and may be set variously. Further, the water temperature in step S1 and the water temperature in step S7 may be the same value.

DESCRIPTION OF SYMBOLS 1 ... Information display apparatus, 2 ... Multiple display screen, 3 ... Meter ECU (display control means), 10 ... Display processing part (a part of display control means), 11 ... Interrupt determination processing part (a part of display control means) ), 13... CAN reception processing part (part of input means), 14... CAN communication part (part of input means)

Claims (4)

In the information display device for controlling the display or non-display of the vehicle information indicating the state of the vehicle that can be displayed on the display screen on the display screen,
Input means for inputting the vehicle information;
When the hidden vehicle information indicates that the vehicle is in an abnormal state, the vehicle information is forcibly displayed and the vehicle information is forcibly displayed on the display screen. Furthermore, when the vehicle information indicates that the state of the vehicle is abnormal, a display control means for displaying that the vehicle state is abnormal on another part of the display screen;
Having
An information display device characterized by that. The information display device according to claim 1,
When the display control means recovers from a state showing a sign that the state of the vehicle is abnormal, the vehicle information displayed forcibly returns to non-display again.
An information display device characterized by that. In a vehicle having an information display device for controlling display or non-display of vehicle information indicating a vehicle state that can be displayed on a display screen on the display screen,
Input means for inputting the vehicle information;
When the hidden vehicle information indicates that the vehicle is in an abnormal state, the vehicle information is forcibly displayed and the vehicle information is forcibly displayed on the display screen. Furthermore, when the vehicle information indicates that the state of the vehicle is abnormal, a display control means for displaying that the vehicle state is abnormal on another part of the display screen;
Having
A vehicle characterized by that. The vehicle according to claim 3,
When the display control means recovers from a state showing a sign that the state of the vehicle is abnormal, the vehicle information displayed forcibly returns to non-display again.
A vehicle characterized by that.

Images