JPH05272992A - Display control device for vehicle - Google Patents

Abstract

PURPOSE:To display information with a small space. CONSTITUTION:This device is provided with a selection information display 14 for displaying a plurality of types of display information data on display regions G1-G6, a CPU 2 for data control for displaying the display information data on the display regions G1-G6, and a CPU 143 for display control for judging whether the number of display information data exceeded the number of display regions G1-G6. When it is judged that the number of display information data exceeded the number of display regions G1-G6, the display information data for the exceeded display regions are switched with the display information data which are being displayed on the display regions G1-G6 for each setting time for display.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle display control device for displaying vehicle display information by characters or symbol marks.

[0002]

2. Description of the Related Art Conventionally, a vehicle instrument panel has been disclosed in Japanese Patent Laid-Open No. 62-62.
As disclosed in Japanese Patent No. 58111, a meter unit that constantly displays the traveling speed, the engine speed, the cooling water temperature, the remaining fuel amount, and the like, and the occurrence of abnormalities such as insufficient brake fluid, insufficient charge, and insufficient engine oil A display unit is provided for displaying the contents of display information such as the shift setting state of the automatic transmission and the operation of the automatic cruise function by characters or symbol marks.

[0003]

By the way, as the number of kinds of display information to be displayed on the instrument panel is increasing with the multi-functionalization of vehicles, the display section is related to the meter section. Since it is arranged in a limited space, it is necessary to reduce the size of each display as the number of types of display information increases. As a result, there is a problem in that it is easy to overlook the display and it becomes difficult to identify the display content.

The present invention solves the above problems, and an object of the present invention is to provide a vehicle display control device capable of displaying a large amount of display information in a small space.

[0005]

In order to achieve the above object, the present invention provides a display means for displaying a plurality of types of display information data in a plurality of display areas, and the display information data in a display area of the display means. The display control means includes a display control means for displaying and a determination means for determining whether or not the number of display information data input to the display control means exceeds the number of display areas of the display means, and the display control means includes the determination means. When it is determined that the number of the above-mentioned display information data exceeds the number of the above-mentioned display areas, the display information data for the exceeded amount is switched to the display information data displayed on the above-mentioned display means at every preset time. It is intended to be displayed.

Further, according to a second aspect of the present invention, the storage means for storing the priorities of the respective display information data in advance is provided, and the display control means includes the display information having the lower priority among the display information data displayed on the display means. The data is switched to display information data that exceeds the number of display areas.

[0007]

According to the vehicle display control device of the first aspect,
When the number of display information data input to the display control means is less than or equal to the number of display areas of the display means, these display information data are displayed in each display area of the display means, and the number of display information data is displayed as described above. When the number of display areas of the means is exceeded, the display information data displayed on the display means and the display information data of the exceeded area are switched and displayed at preset time intervals.

According to the vehicle display control device of the second aspect, the priority of each display information data is stored in advance, and when the number of display information data exceeds the number of display areas of the display means, Among the display information data displayed on the display means, the display information data of lower priority and the display information data of the excess amount are alternately switched and displayed at preset time intervals.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 2 shows an embodiment of an instrument panel provided with a vehicle display device according to the present invention. Instrument panel 11
Is composed of a meter unit 12, a standard information display unit 13, and a selection information display unit (display means) 14. Meter part 1
2 is disposed in the central portion of the instrument panel 11, and includes a traveling speed meter 121, an engine speed meter 122, a cooling water temperature meter 123, a residual fuel amount meter 124, and an odometer 12.
5 and meters.

The standard information display section 13 is the meter section 12 described above.
Is arranged on the right side of the vehicle, and is provided with a charge shortage warning light 131, a brake fluid shortage warning light 132, and an engine oil shortage warning light 1.
33, a rear defroster operation light 134, a headlight high beam operation light 135, a theft alarm light 136, and the like, which are indicator lights for illuminating and displaying warnings and the like that need to be displayed through all vehicle types.

The selection information display section 14 displays display information other than the display information displayed on the standard information display section 13, for example, according to the equipment of each vehicle type, and is arranged on the left side of the meter section 12. It is composed of a liquid crystal, an EL element or a cathode ray tube. In addition, the selection information display unit 14
As shown in FIG. 4, the display screen has six display areas G1.
To G6, and images of characters and symbol marks indicating display information such as the shift setting state of the automatic transmission are displayed in the respective display areas G1 to G6.

Next, the control system of the vehicle display device will be described with reference to the block diagram of FIG. This control system comprises a multiplex communication circuit 1, a data control central control unit (CPU) 2 as a control means, and a display control unit 3. The multiplex communication circuit 1 includes a plurality of detection units 4 via one multiplex transmission line (bus) M including twisted pair wires.
Is connected to the detecting unit 4 and performs data communication with the detecting unit 4. The detection unit 4 detects display information that needs to be displayed on the instrument panel, such as the traveling speed, the remaining amount of engine oil, the shift setting state of the automatic transmission, etc., and displays these display information as ID data, display information data,
The data is converted into serial data composed of check data and the like and transmitted to the multiplex transmission path M. Then, the multiplex communication circuit 1 converts the serial data from the detection unit 4 into parallel data and outputs the parallel data to the data control CPU 2. The ID data is data for identifying what kind of display information is assigned to the display information data, and the check data is data for checking the received data on the receiving side.

The data control CPU 2 determines the contents of the display information data contained in the parallel data from the multiplex communication circuit 1, and displays these display information data in the display control section 3.
The meter drive circuit, the transistors Q1 to Q6, and the selection information display section drive circuit 141 are separately output. For example, the data to be displayed on the meter unit 12, such as the traveling speed, is sent to a meter drive circuit, which will be described later, with display information common to all vehicle types, for example, predetermined display information data such as insufficient charging (standard display information data). Display information data (special display information data) including display information data corresponding to the equipment for each vehicle model such as the shift setting state of the automatic transmission other than the standard display information data is selected information display section. It is output to the drive circuit 141. The special display information data may include display information common to all vehicle types.

The display controller 3 includes a speedometer drive circuit 31.
, A rotation speed meter drive circuit 32, a meter drive circuit for driving meters of the DA conversion units 33, 34, transistors Q1 to Q6 for driving the indicator lights 131 to 136 of the standard information display unit 13, and a selection information display unit. It is composed of a drive circuit 141, controls the display state of each meter of the meter unit 12 according to the data from the data control CPU 2, and also displays each display state of the standard information display unit 13 and the selection information display unit 14. It is designed to be controlled.

The speed meter drive circuit 31 controls the deflection angle of the pointer of the traveling speed meter 121 by inputting the data relating to the traveling speed from the data control CPU 2, and the traveling distance based on the data relating to the traveling speed. Is calculated and displayed on the odometer 125. The rotation speed meter drive circuit 32 controls the deflection angle of the pointer of the engine rotation speed meter 122 when data regarding the rotation speed of the engine is input from the data control CPU 2. The DA converter 33 controls the deflection angle of the pointer of the cooling water thermometer 123 by inputting the data regarding the cooling water temperature from the data control CPU 2. The DA converter 34 controls the deflection angle of the pointer of the remaining fuel amount meter 124 by inputting the data regarding the remaining amount of fuel from the data control CPU 2.

The transistors Q1 to Q6 turn on the respective indicator lights 131 to 136 of the standard information display section 13 according to the display information data from the data control CPU 2. For example, when insufficient charge is detected, the data control CPU 2 outputs a high signal to the base of the transistor Q1, which turns on the transistor Q1 and turns on the insufficient charge warning lamp 131.

It should be noted that the turn left lamp 5 and the turn right lamp 6 have data relating to a direction instruction or the like for switching between a high signal and a low signal at a predetermined time interval and the data control CP.
It is designed to blink by being output from U2 to the bases of the transistors Q7 and Q8.

The selection information display drive circuit 141 includes an interface 142 and a display control central control unit (CPU) 143 as a display control means, a discrimination means and a storage means.
The controller 144 and the ROM 145 as a memory are used to display an image of characters or symbol marks according to the display information data from the data control CPU 2 on the selection information display unit 14.

The display control CPU 143 is connected to the data control CPU 2 via the interface 142.
A display instruction signal is output to the controller 144 according to the display information data from the data control CPU 2. The controller 144 includes the display control CPU 1
Characters and symbol marks corresponding to the display instruction signal from 43 are read from the ROM 145 and displayed on the selection information display unit 14.

Further, the display control CPU 143 previously stores the priority order of the display information data. When the display information data from the data control CPU 2 is two or more, the stored priority order is stored. Accordingly, the display areas G1 to G6 of the selection information display section 14 are arranged and displayed in the order of G1 to G6. The display control CPU 1
When the number of data from the data control CPU 2 is one, the numeral 43 displays characters and symbol marks corresponding to the data in the display area G1 of the selection information display section 14.

The display control CPU 143 has a function of determining whether or not the number of pieces of display information data to be displayed on the selection information display section 14 exceeds the number (6) of the display areas G1 to G6, and the display. When the number of display information data to be exceeded exceeds 6, the display information data corresponding to the excess is displayed with the display information data displayed in the display areas G1 to G6 of the selection information display section 14 at preset time intervals. It has a function of switching to and displaying the information alternately on the selected information display section 14.

For example, when there are eight pieces of display information data from the communication control CPU 2, four pieces of data are displayed constantly in the display areas G1 to G4 of the selection information display section 14 in order from the highest priority. The four low-priority data are divided into two data, and the two divided data are alternately displayed in the display areas G5 and G6 for each set time.

Next, a display example of the selection information display section 14 will be described with reference to the flowchart of FIG. 3 by taking a vehicle type of an automatic transmission as an example. In addition, C for display control
The PU 143 has a display priority in the order of transmission change hold, transmission shift setting, auto cruise function operation, traction function abnormality, exhaust pipe overheat, lamp burnout, insufficient fuel level, insufficient washer fluid. It is assumed to be remembered.

For example, when the shift of the automatic transmission is set to "D", the change is held, the automatic cruise function is activated, and the abnormality of the traction function is detected, the display information data (serial data) indicating them is output. The serial data is transmitted from the detection unit 4 to the multiplex communication circuit 1, received by the multiplex communication circuit 1 (step S1), converted into parallel data, and output to the data control CPU 2.

The contents of the display information data from the multiplex communication circuit 1 are discriminated by the data control CPU 2 (step S2), and when discriminated as the data for the meter unit 12, the data is divided into the meter unit 12. (Step S3), the deflection angle of the pointer such as the traveling speed meter 121 is changed as necessary. When it is determined in step S2 that the data is for the standard information display unit 13, the data is divided into the transistors Q1 to Q6 (step S4),
The insufficient charge warning light 131 or the like is turned on. Further, if it is determined in step S2 that the display information data such as the set of the shift "D", the hold of the change, the operation of the auto cruise function, the abnormality of the traction function, etc. Information display drive circuit 141
(Step S5).

Then, it is judged whether or not the number of display information data exceeds six (step S6). Here, since the display information data is four pieces of data, that is, the automatic transmission is set to the shift “D”, the change is held, the automatic cruise function is activated, and the traction function is abnormal (NO in step S6),
In step S7, the display information data is sorted in descending order of priority, and the display area G1 is sorted according to this priority.
To G6 are displayed (step S8). That is, FIG.
As shown in, the character "HOLD" indicating the hold of the change is displayed in the display area G1 in the display area G1 according to the priority order.
The letter "D" indicating the setting of shift "D" in 2 indicates "CRUIS" indicating the operation of the auto cruise function in the display area G3.
The character "E" and the character "TRC" indicating the abnormality of the traction function are displayed in the display area G4.

After that, for example, when overheating of the exhaust pipe and burnout of the lamp are detected, as shown in FIG. 5, a symbol indicating overheating of the exhaust pipe and burnout of the lamp is detected through the processes of steps S1 to S8. The mark is additionally displayed in each of the display areas G5 and G6.

In this state, for example, when the fuel remaining amount shortage and the washer liquid shortage are detected, the number of display information data becomes eight (YES in step S6), so that the number exceeds six in step S9. Display switching processing is performed in which the minute display information data and the display information data displayed in the display areas G5 and G6 are switched at predetermined time intervals and alternately displayed on the selected information display unit 14.

For example, as shown in FIG. 6, the display in the display areas G5 and G6 is set in advance after being switched to the character "EMP" indicating the lack of the remaining fuel amount and the symbol mark indicating the lack of the washer liquid. When the time elapses, the display areas G5 and G6 again display the symbol mark indicating overheating of the exhaust pipe and burnout of the lamp as shown in FIG. Then, the switching of the display is repeated every set time.

As described above, when the number of display information data to be displayed on the selection information display section 14 exceeds the number of display areas G1 to G6, the display of the display areas G5 and G6 is switched and exceeded. Since the display information data is displayed, a large amount of display information data can be displayed on the selected information display unit 14 in a small display area.

In the above flow chart, four pieces of data with high priority are constantly displayed in the display areas G1 to G4, and when the number of pieces of display information data exceeds six,
Although the display areas G5 and G6 are switched and displayed alternately, any of the display areas G1 to G6 may be switched and displayed.

Further, when new display information data is displayed on the selection information display unit 14, characters or symbol marks corresponding to the display information data are temporarily set for a preset time period over the two display areas. Alternatively, the display may be displayed in one display area after the enlarged display. in this case,
It becomes easy to confirm the generation of new display information.

In the above embodiment, the selection information display section 1
Although the display area of 4 is set to 6 areas, it may be set to 5 areas or less, or may be set to 7 areas or more.

[0034]

According to the present invention, when the number of display information data exceeds the number of display areas of the display means, the display information data displayed on the display means and the display information data for the excess are preset. Since the display information is switched and displayed every time, all the display information can be displayed in a limited display area without reducing the display of the display information data. Therefore,
Not only can the instrument panel be used effectively, but the displayed contents can be confirmed without fail.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a control system of a vehicle display control device according to the present invention.

FIG. 2 is a front view showing an embodiment of the instrument panel.

FIG. 3 is a flowchart showing the operation of the control system.

FIG. 4 is a front view showing a display example of an image display unit.

FIG. 5 is a front view showing a display example of an image display unit.

FIG. 6 is a front view showing a display example of an image display unit.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 multiplex communication circuit 2 central control device for communication control 3 display control part 12 meter part 13 standard information display part 14 selected information display part (display means) 142 interface 143 central control device for display control (display control means, discrimination means, storage) Means) 144 controller 145 ROM

Claims (2)

[Claims] 1. Display means for displaying a plurality of types of display information data in a plurality of display areas, display control means for displaying the display information data in a display area of the display means, and a display input to the display control means. The display control means determines that the number of the display information data exceeds the number of display areas by the determination means, and the display control means determines whether the number of information data exceeds the number of display areas of the display means. In this case, the display control device for a vehicle is characterized in that the display information data for the excess amount is switched and displayed with the display information data displayed on the display means at every preset time. 2. A storage unit for storing the priority of each display information data in advance, wherein the display control unit displays the display information data of lower priority among the display information data displayed on the display unit. 2. The display control device for a vehicle according to claim 1, wherein the display information data is switched to the display information data exceeding the number of display areas.