JPS6259812A - Multiple display device for vehicle - Google Patents

Abstract

PURPOSE:To display necessary information without fail even if wrong display change-over operation takes place while traveling by providing a display control means to forbid the changeover from a selected pattern to another pattern. CONSTITUTION:A display device is provided to an instrument panel of a vehicle and changes over and displays information of every kind in different combination for every pattern according to plural patterns preset by a multiple display means 11. Further, the pattern displayed by the multiple display means 11 by display selection means 51-53 is optionally selected to change over the display. Then, the changeover of the pattern displayed by the multiple display means 11 is controlled by a display control means 21 based on a travel detection means 39 detecting a traveling state of a vehicle and a signal from the detection means 39. In other words, the display control means 21 selects the changeover to another pattern and acts to forbid the changeover to another pattern. Accordingly, the changeover is not performed and the information required for traveling is always displayed even if an operator changes over the pattern in error during traveling.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a multi-display device for a vehicle that displays various types of information in a multiplex manner on a display screen provided on an instrument panel of a vehicle.

(Prior technology) The instrument panel installed in front of the driver's seat of a vehicle is equipped with meters such as a speedometer, tachometer, water temperature gauge, and fuel gauge, as well as various indicator lamps and warning lamps. Furthermore, in recent years, with the diversification of vehicle equipment and functions, for example, boost gauges that indicate the supercharging pressure of the supercharger and safety monitors that centrally display the status of each part of the vehicle when starting the vehicle have been installed. Therefore, there is a tendency for the number of display devices that display various types of information to increase.

In that case, if these indicators were individually arranged on the instrument panel, the installation area would become unnecessarily large.
The visibility of these indicators will be reduced.

To solve this problem, it is conceivable to display a plurality of pieces of information in a multiplexed manner on a screen in a fixed display area, as shown in, for example, Japanese Patent Laid-Open No. 57-151446. If this multiple display method is adopted, one display screen can be used to display, for example, a safety monitor display that shows the status of each part of the vehicle when starting, and a meter display that shows the vehicle speed, engine rotation speed, etc. when driving. Furthermore, when an abnormality occurs, it is possible to selectively display necessary information in a fixed display area according to each condition of the vehicle or according to the driver's request, such as displaying a warning display indicating the abnormality location, and various displays. visibility will be improved.

However, if various information is switched and displayed on the screen in this way, and the display can be switched by the driver's operation, for example, if the meter is displayed while driving due to an erroneous operation. There is a possibility that the display switches from the display to the safety monitor display and the information necessary for driving, such as the vehicle speed, is no longer displayed, and in such a case, driving the vehicle will be hindered.

(Object of the Invention) The present invention addresses the above-mentioned problems in a multiplex display device for a vehicle that displays various types of information multiplexed on a single display screen. The system is designed to ensure that information necessary for driving, such as vehicle speed, is always displayed even if the driver accidentally switches the display, and to prevent this type of information from being displayed while driving. purpose.

(Structure of the Invention) The dual-purpose display device according to the present invention is characterized in that it is configured as follows in order to achieve the above object.

That is, this multiple display device is installed on the instrument panel of the vehicle,
a display means for switching and displaying various types of information in different combinations for each pattern according to a plurality of preset patterns; a display selection means for arbitrarily selecting a pattern to be displayed on the display means and switching the display; The vehicle is comprised of a running detection means for detecting the running state, and a display control means for controlling switching of patterns displayed on the display means based on a signal from the detection means. The display control means switches and selects the pattern displayed by the display means to a pattern including information necessary for the vehicle to travel when the output signal of the travel detection means indicates that the vehicle is traveling, and also selects the display selector. It operates to prohibit switching from the pattern to another pattern by the means. Therefore, when the vehicle is running, a pattern that includes information necessary for driving is automatically displayed, and even if the driver mistakenly performs a pattern switching operation, the pattern that does not include the information is displayed.
Since H cost 5 will not be carried out, information necessary for driving will always be displayed.

(Effects of the Invention) As described above, the present invention provides a multi-display device for a vehicle that selectively displays various types of patterned information on a display screen in a window display area. When the vehicle is running, even if the driver makes a mistake in changing the pattern, information necessary for driving, such as vehicle speed, engine rotation, etc.
Water temperature, fuel remaining a, etc. will always be displayed. This prevents problems such as troubles in driving due to these necessary information not being displayed.

(Example) Examples of the present invention will be described below.

As shown in FIG. 1, the multiple display device according to this embodiment includes a display unit 1 installed on the instrument panel in front of the driver's seat of a vehicle, and a control unit 1-2 installed in the trunk room, for example. The two units 1 and 2 are connected via a transmission path 3 that multiplexes a large number of signals.

The display unit 1 is a multi-display display that switches between various displays on the screen using a light emitting element and a liquid crystal display. S1
1, a driver 12 for driving the display section 11, and an interface 13 to which signals from 2 are input to the control unit 1. The control unit l-2 is composed of a controller 21 that processes signals input from various sensors and switches, and an interface 22 that outputs the processing results of the controller 21 to the display unit 1. The controller 21 is connected to a battery 31, and in this embodiment is provided with an interface 23 for outputting signals a and a' to and from a control unit 32 of the four-wheel steering system.

The control unit 21 includes an ignition signal from an ignition switch 33, a fuel remaining Φ sensor 34, a water temperature sensor 35, an oil pressure sensor 36, a boost pressure sensor 37, an engine rotation sensor 38, and a vehicle speed sensor. Status signals C to h indicating the states detected by each sensor are inputted from the sensor 39, and a switch 40 detects a shortage of brake fluid m, a switch 41 detects a battery charging failure, and a switch 41 detects a shortage of oil level. a switch 42 for detecting abnormal overheating of the exhaust pipe, a switch 44 for detecting a lack of cooling water,
A switch 45 for detecting a door ajar, a switch 46 for detecting a break in a tail lamp, a switch 47 for detecting a break in a seat lamp, a switch 48 for detecting a seatbelt not being fastened, a switch 49 for detecting a lack of washer fluid, etc. Warning signals i to r are input from each IJI notification switch as necessary.

In addition, a plurality of display patterns are set in this control unit 21, in which each of the signals a-r is received and various types of information are displayed in different combinations on the multiplex display section 11 of the display unit 1. First to third selection switches 51 to 53 for manually switching are connected. The above display pattern is shown in Figure 2 (
Centering on the tachometer A1 that shows the engine speed shown in a), the fuel gauge A2 that shows the remaining amount of fuel, the water temperature gauge A3 that shows the water temperature, the boost gauge A4 that shows the boost pressure of the supercharger, and the four-wheel steering state, that is, each wheel. A tachometer center pattern △ that displays a steering indicator A5 indicating the steering state of the vehicle, a tachometer B1 shown in FIG.
5. All-item pattern B that displays the voltmeter 86, warning indicator group B7, and boost meter B8, and the same figure.
A checklist C1 that displays the normality and abnormality of each part of the vehicle shown in C) for each item, a comprehensive evaluation section C2 that displays the comprehensive evaluation of these parts, and a pictorial display all that illustrates abnormalities.
A safety monitor pattern C that displays C3 is set. Here, if the above safety monitor pattern C is selected and there is an abnormality in each part, an X mark will be displayed on the corresponding item in the checklist C1 as shown in Fig. 2 (C'), and the part will be is displayed on the picture display section C3, and warning characters are displayed on the general display section C2. Further, in this embodiment, the multiple display section 1
1, it is possible to display a clinic result display pattern D for each part of the vehicle as shown in Fig. 2(d).
It is used for repairs, etc.

As shown in FIG. 2(a), the multiple display section 11 is provided in a certain area within the instrument panel 60, and the instrument panel 60 also has a total odometer E, a trip display section, etc., as a dedicated display section. A meter F1, a headlamp indicator G1, a range indicator H1 for the automatic transmission, a driving mode indicator 1 for the automatic transmission, and the like are provided.

However, the controller 21 in the control unit 2 selects a pattern to be displayed on the multiple display section 11 in the display unit 1 according to the operation of the first to third selection switches 51 to 53 and the state of the vehicle. It operates to switch. Next, the operation of this controller 21 will be explained according to the flowchart shown in FIG.

First, the controller 21 performs step $ of the flowchart.
In Step 1, it is determined whether or not the ignition switch 33 has been turned on. If it has not been turned on, display on the multiple display section 11 is prohibited in Step S2, but when it has been turned on, the display section 11 shown in Fig. 2 is displayed in Step S3. Avoid displaying the safety monitor pattern C shown in <O). This allows the driver to check the state of charge of the brake fluid G1 battery.

Next, the controller 21 reads the engine speed in step S4, and when the engine speed is O, that is, the engine has not started yet and 10 seconds have not elapsed since the ignition switch was turned on. Selection switch 51
While none of steps 53 to 53 are operated, step S5
．． The steps S6 and S3 are repeatedly executed to continue displaying the safety monitor pattern C. Then, when the engine speed is no longer O, that is, when the engine is started, and when the ignition switch 33 is turned ON for 0 seconds even before the engine starts, the steps S4 or S5 to S7 are executed. Then, the previous pattern is displayed on the display section 11. In this case, as the previous pattern, the pattern that was displayed when the ignition switch 33 was turned OFF during the previous vehicle operation is displayed.

In this state, the previous pattern is displayed, or before the engine starts and the ignition switch 33
is turned on until 10 seconds have passed (during this time, the safety monitor pattern C is displayed in step S3), the first to third selection switches 51 to
53 is operated, step S8 or steps S6 to S9 are executed. If the operated switch is the first selection switch 51 for selecting the tachometer center pattern A shown in FIG.
The switches displayed in Figure 1 and operated are shown in Figure 2 (b).
), the second selection switch 52 is used to select all item pattern B of item 1, step S12 is executed to display pattern B of item 1 in question. In this way, when the tacho make center pattern △ or the all-item pattern B is displayed based on the operation of the selection switch 51 or 52, the controller 21 selects the L step S + o
Alternatively, execute steps S12 to S13 to set these selected patterns as the previous pattern, and then execute step S13.
After confirming that the ignition switch 33 is ON with M, the above step S7 is executed, and the previous pattern, that is, the pattern A or B selected as described above is displayed again, and the steps from step S7 to step Sa are executed. , So, SI4 and repeat step S7.
is executed, and the pattern A or B is continuously displayed.

On the other hand, when the operated switch is the third selection switch 53 for selecting the safety monitor pattern, step S9. Step S15 is executed via S11, and it is determined whether the vehicle speed is O or not. Then, only when the vehicle speed is O,
That is, steps 816 to 317 are executed only when the vehicle is stopped, and the selected safety monitor pattern C is displayed. However, if the vehicle speed is not O, that is, while the vehicle is running, steps S+s to S+o are executed, and the tachometer center pattern A is displayed.

As a result, even if the third selection switch 53 for selecting safety monitor pattern C is operated while driving, switching to pattern C will be prohibited, and the engine speed, water temperature, and fuel required for driving the vehicle will be prohibited. A tachometer center pattern A including information such as outside m will be displayed.

In addition, when the vehicle speed is O, the third selection switch 53
When the safety monitor pattern C is displayed by the operation, if any of the selection switches 51 to 53 is not further operated within 10 seconds after the selection operation, the steps 1 and 1 are performed from step S+1 above. Step S+
a, S19, S20 and then step S again
+y to continue displaying safety monitor pattern C. However, when the vehicle speed is no longer O during that time, that is, at 11,1 when the vehicle starts running, steps S20 to S1o are executed, and the tachometer center pattern Δ
Switch the display to . In other words, even if the ``Futei Monik Bakun C'' is displayed when the vehicle is stopped, once the vehicle starts traveling, the display will automatically switch to the tachometer-centered pattern, and the information necessary for traveling will be displayed. Furthermore, if any of the selection switches 51' to 53 is further operated and 'O' is performed before 10 seconds have elapsed since the safety monitor pattern C selection display,
Execute steps 89 and below from step 819,
Display the selected pattern as in the above case ((
(and when safety monitor pattern C is selected, pattern C is displayed only when the vehicle speed is O). Furthermore, if 10 seconds have elapsed since the selection display of the safety monitor pattern C, the process proceeds from step Sea to step S1a, and then to step S7.
to display the previous pattern. In this case, the previous pattern is the pattern before selection of safety monitor pattern C, that is, tachometer center pattern A or all-item pattern B.
becomes.

Furthermore, in addition to the display operation described above, the controller 1 [''-ra 21] also displays the diagnosis result by operating γ-ira etc. on a3.
The warning display operation when an abnormality occurs is performed in step A3.Next, these operations will be explained.

First, the diagnosis result display operation is as follows. Second selection switch 51
．． 52 at the same time, and at this time, the controller 21 steps from step S8 to step S9.
, S1+, S+5. After S+6, the subprogram shown in FIG. 4 is executed. Then, in step T1 of this subprogram, the first and second selection switches 51 and 52
After confirming that the are operated at the same time, proceed to step T2.
The diagnostic result display pattern D shown in FIG. Even if there is, when the medium speed is no longer O, "n1 to [1-ra21" are changed from step T3 to the third
Execute steps S to in the flowchart tr-1 to switch the display to the tachometer center pattern. Therefore, in this case as well, information necessary for driving the vehicle is displayed as soon as the vehicle starts driving.

In addition, the warning display operation is performed when a situation that requires a warning occurs.
This is done by executing the rib program shown in the figure including υ1. In other words, step LJ of this subprogram
If +2 confirms that an abnormality such as a lack of brake fluid has occurred, controller 21 determines whether the currently displayed pattern is safety monitor pattern C in step U2. If the pattern C is displayed, a warning is displayed at the corresponding location in the list C1 and the picture display section C3 for the pattern C, and a warning is displayed on the general display section C2. Display characters. Also,
If the pattern displayed when an abnormality occurs is a pattern other than the security monitor pattern C, step U3 is executed to display a warning pattern.

This warning pattern is all item pattern B in Figure 2 (b).
If the warning indicator jJB y is displayed and the all-item pattern B is displayed, the corresponding indicator in this indicator group B7 is displayed by lighting. Furthermore, if the pattern displayed when an abnormality occurs is the tachometer center pattern A, then the pattern A1. :Display the 9th group of warning indicators By instead of the 64-wheel steering indicator A5, and light up the corresponding indicators in the indicators F and f37.

As described above, various patterns are switched and displayed on the multi-display section 11 provided on the instrument panel 60 facing the driver's seat. If the vehicle is operated, or if the vehicle starts running while the vehicle is stopped and the front monitor pattern C is displayed, the tachometer center pattern will be displayed. In addition, when the vehicle is running, information necessary for driving is always displayed.

As the pattern to be displayed when the vehicle is running, instead of the tachometer center pattern A, the all-item display pattern B may be displayed.

[Brief explanation of the drawing]

Since the drawings are difficult to show the embodiments of the present invention, FIG.
Table display The entire 1iTj (circuit diagram showing 1°4 configuration, 2nd
Figures (a) to (d) are front views of the display section showing various display patterns, and Figure 3 is the display control 2 of the controller.
Figures 4 and 5 are flowcharts showing the diagnostic result display operation and warning operation of the controllers 1 to 1, respectively. . DESCRIPTION OF SYMBOLS 11... Water entry means (multiple display part), 21... Display control means (control [1-ra)], 39... Running detection means (
Vehicle speed range IJ), 51-53... Means to display level 1 (selection switch), 8-C... Pattern.

Claims (1)

[Claims] (1) A display means installed on a vehicle's instrument panel that switches and displays various types of information in different combinations for each pattern according to a plurality of preset patterns, and a display means that can arbitrarily change the pattern displayed by the display means. A display selection means for selectively switching the display, a running detection means for detecting the running state of the vehicle, and a signal indicating the running of the vehicle from the detection means, allows the pattern displayed by the display means to be set as necessary for the running of the vehicle. 1. A multi-display device for a vehicle, comprising display control means for switching to a pattern including information such as information, and display control means for prohibiting the display selection means from switching from the pattern to another pattern.