JP3212676B2 - Display control device for vehicles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art Conventionally, the instrument panel of a vehicle is disclosed in
As shown in Japanese Patent No. 58111, a meter section for constantly displaying a running speed, an engine speed, a coolant temperature, a remaining fuel amount, and the like, and an occurrence of an abnormality such as a shortage of brake fluid, a shortage of charge, and a shortage of 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 and symbol marks.

[0003]

By the way, the number of types of display information to be displayed on the instrument panel has been increasing with the increase in the number of functions of the vehicle. Therefore, it is necessary to reduce each display as the number of types of display information increases. As a result, there arises a problem that the display is easily overlooked and the display content is difficult to identify.

An object of the present invention is to solve the above-mentioned problem, and an object of the present invention is to provide a display control device for a vehicle capable of displaying a large amount of display information in a small space.

[0005]

According to a first aspect of the present invention, there is provided a display means for displaying a plurality of types of display information data on a plurality of display areas, and a display means for displaying the display information data on the display means. Display control means for displaying the display information on the display area, determining means for determining whether the number of display information data input to the display control means exceeds the number of display areas of the display means, and priority order of each display information data Storage means for storing in advance, the display control means, when it is determined by the determination means that the number of the display information data exceeds the number of display areas, the display information data of the excess, The display information data having a lower priority among the display information data displayed on the display means is switched and displayed at predetermined time intervals.

[0006] According to a second aspect of the present invention, a plurality of display devices are provided.
Display means for displaying a plurality of types of display information data in an area
Display information data is displayed in the display area of the display means.
Display control means to be displayed and a table input to the display control means.
The number of display information data exceeds the number of display areas of the above display means
Determination means for determining whether or not each display information data
Storage means for storing priorities in advance, wherein the display control means, when it is determined that the number of pieces of display information data exceeds the number of display areas, regularly displays some display information data in descending order of priority. A plurality of display information data having a low priority are alternately displayed every half the set time and displayed .

[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 equal to or less than the number of display areas of the display means, the display information data is displayed on each display area of the display means, and the number of the display information data is displayed on the display area. If the number of display areas exceeds the number of display areas, the display information data displayed on the display means and the display information data corresponding to the excess are switched and displayed at predetermined intervals.

Further, 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, the priority of the display information data displayed on the display means is changed. The display information data having a lower rank and the display information data exceeding the rank are alternately switched and displayed at predetermined time intervals.

According to the second aspect, half of the plurality of pieces of display information data having low priority are alternately switched and displayed every set time.

[0010]

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 section 12, a standard information display section 13, and a selection information display section (display means) 14. Meter unit 1
2 is disposed in the center of the instrument panel 11, and includes a traveling speed meter 121, an engine speed meter 122, a cooling water thermometer 123, a remaining fuel meter 124, and an odometer 12.
And 5 meters.

The standard information display section 13 is provided with the meter section 12.
Are provided on the right side of the vehicle, a low-charge warning light 131, a low-brake-fluid warning light 132, and a low-engine-warning warning light 1
33, a rear defroster operation light 134, a headlight high beam operation light 135, a burglar alarm light 136, and other display lamps for lighting and displaying warnings and the like that need to be displayed for 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 equipment for each vehicle type, and is disposed on the left side of the meter section 12. Liquid crystal, an EL element, a cathode ray tube, or the like. In addition, the selection information display section 14
Indicates that the display screen has six display areas G1 as shown in FIG.
To G6, and images of characters and symbol marks indicating display information such as a shift setting state of the automatic transmission are displayed in each of the display areas G1 to G6.

Next, a control system of the display device for a vehicle will be described with reference to a block diagram of FIG. The control system includes a multiplex communication circuit 1, a central control unit (CPU) 2 for data control as 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 composed of a twisted pair line or the like.
And performs data communication with these detection units 4. The detection unit 4 detects display information that needs to be displayed on an instrument panel, such as a traveling speed, a remaining amount of engine oil, and a shift setting state of an automatic transmission, and outputs these display information to ID data, display information data,
The data is converted into serial data composed of check data and transmitted to the multiplex transmission line M. 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 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 transmits the display information data to the display control unit 3.
And outputs them separately to the meter drive circuit, the transistors Q1 to Q6, and the selection information display section drive circuit 141. For example, 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, on display information common to all vehicle types, for example, predetermined display information data such as insufficient charge (standard display information data). To the transistors Q1 to Q6, and display information data (special display information data) including display information data according to the equipment for each vehicle type such as the automatic transmission shift setting state other than the standard display information data. The signal is output to the drive circuit 141. The special display information data may include display information common to all vehicle types.

The display control unit 3 includes a speed meter driving circuit 31
Drive circuit for driving meters such as a speed meter drive circuit 32 and DA converters 33 and 34; transistors Q1 to Q6 for driving indicator lamps 131 to 136 of the standard information display unit 13; A drive circuit 141 controls the display state of each meter of the meter section 12 according to the data from the data control CPU 2, and controls the display states of the standard information display section 13 and the selection information display section 14. Control.

The speed meter drive circuit 31 controls the deflection angle of the pointer of the traveling speed meter 121 by inputting data relating to the traveling speed from the data control CPU 2 and based on the data relating to the traveling speed. Is 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 by inputting data on the rotation speed of the engine 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 data relating to 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 meter 124 by inputting data regarding the remaining fuel from the data control CPU 2.

The transistors Q1 to Q6 turn on the display lamps 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, a high signal is output from the data control CPU 2 to the base of the transistor Q1, whereby the transistor Q1 is turned on and the insufficient charge warning lamp 131 is turned on.

The turn left lamp 5 and the turn right lamp 6 are provided with data relating to a direction indication or the like for switching between a high signal and a low signal at predetermined time intervals.
U2 is output to the bases of the transistors Q7 and Q8 so as to blink.

The selection information display section drive circuit 141 includes an interface 142 and a display control central controller (CPU) 143 as display control means, determination means and storage means.
And a controller 144 and a ROM 145 as a memory. The selection information display unit 14 displays an image of a character or a symbol mark corresponding to the display information data from the data control CPU 2.

The display control CPU 143 is connected to the data control CPU 2 via the interface 142.
It outputs a display instruction signal to the controller 144 according to the display information data from the data control CPU 2. The controller 144 is a CPU for display control.
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.

The display control CPU 143 stores the priority of the display information data in advance, and when the display information data from the data control CPU 2 is two or more, the display priority of the stored priority is stored. In the display areas G1 to G6 of the selection information display unit 14 in the order of G1 to G6. The display control CPU 1
Reference numeral 43 indicates that when there is one data from the data control CPU 2, a character or a symbol mark corresponding to the data is displayed in the display area G1 of the selection information display unit 14.

The display control CPU 143 has a function of determining whether or not the number of display information data to be displayed on the selection information display section 14 exceeds the number (six) of the display areas G1 to G6. When the number of pieces of display information data to be exceeded exceeds six, the excess pieces of display information data are combined with the display information data displayed in the display areas G1 to G6 of the selection information display unit 14 at predetermined time intervals. And a function of alternately displaying the selected information on the selection information display unit 14.

For example, when the display information data from the communication control CPU 2 is eight, four data are displayed constantly in the display areas G1 to G4 of the selection information display unit 14 in order from the highest priority. The four data items having the lower priority are divided into two data items, and the two data items 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 a flowchart of FIG. 3 by taking a vehicle type of an automatic transmission as an example. The display control C
PU 143 has the following display priority in the order of hold of transmission change, transmission shift setting, operation of auto cruise function, abnormality of traction function, overheating of exhaust pipe, burnout of lamp, insufficient fuel level, insufficient washer fluid. It shall be stored.

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

The content of the display information data from the multiplex communication circuit 1 is determined by the data control CPU 2 (step S2). If the display information data is determined to be data to the meter section 12, the data is divided into the meter section 12. (Step S3), the deflection angle of the pointer such as the traveling speed meter 121 is changed as necessary. If it is determined in step S2 that the data is for the standard information display section 13, the data is classified into the transistors Q1 to Q6 (step S4).
The insufficient charging warning lamp 131 and the like are turned on. Further, in step S2, if it is determined that the data is the data to be displayed on the selection information display section 14, such as the display information data such as the setting 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 section drive circuit 141
(Step S5).

Next, it is determined whether or not the number of display information data exceeds six (step S6). Here, the display information data is four data of the setting of the automatic transmission to shift "D", the hold of the change, the operation of the automatic cruise function, and the abnormality of the traction function (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 the priority.
To G6 (step S8). That is, FIG.
As shown in the figure, the characters "HOLD" indicating the hold of the change are displayed in the display area G1 according to the priority order.
The character "D" indicating the setting of the shift "D" is displayed in the display area G3, and "CRUIS" indicating the operation of the auto cruise function is displayed in the display area G3.
The character "E" is displayed in the display area G4 with the character "TRC" indicating an abnormality in the traction function.

Thereafter, for example, when overheating of the exhaust pipe and burnout of the lamp are detected, a symbol indicating overheat of the exhaust pipe and burnout of the lamp is obtained as shown in FIG. Marks are additionally displayed in the display areas G5 and G6.

In this state, for example, if a shortage of remaining fuel and a shortage of washer fluid are detected, the number of display information data becomes eight (YES in step S6), and the number of display information data exceeds six in step S9. A display switching process of switching the display information data of the minute and the display information data displayed in the display areas G5 and G6 at every preset time and alternately displaying the display information data on the selection information display unit 14 is performed.

For example, as shown in FIG. 6, the display of the display areas G5 and G6 is switched to the character "EMP" indicating the shortage of the remaining fuel and the symbol mark indicating the shortage of the washer liquid, and thereafter, is set in advance. After a lapse of time, the display areas G5 and G6 again display a symbol mark indicating overheating and exhaustion of the exhaust pipe shown in FIG. The switching of the display is repeated every set time.

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

In the above flow chart, four data items having high priority are displayed constantly in the display areas G1 to G4, and when the number 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.

When new display information data is displayed on the selection information display section 14, a character or a symbol mark corresponding to the display information data is temporarily set over two display areas for a predetermined time. After only the enlarged display, it may be displayed in one display area. in this case,
Generation of new display information can be easily confirmed.

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

[0035]

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 excess display information data are set in advance. Since the display is switched every time the display information is displayed, all display information can be displayed in a limited display area without reducing the display of the display information data. Therefore,
The instrument panel can be used effectively, and the displayed contents can be confirmed without fail.

[Brief description of the drawings]

FIG. 1 is a block diagram showing one 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 an instrument panel.

FIG. 3 is a flowchart showing an operation of a 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]

REFERENCE SIGNS LIST 1 multiplex communication circuit 2 communication control central control unit 3 display control unit 12 meter unit 13 standard information display unit 14 selection information display unit (display unit) 142 interface 143 display control central control unit (display control unit, determination unit, storage Means) 144 Controller 145 ROM

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-54-153443 (JP, A) JP-A-62-58111 (JP, A) JP-A-62-58112 (JP, A) JP-A-5-58112 272991 (JP, A) JP 1-23339 (JP, B2) (58) Fields investigated (Int. Cl. ⁷ , DB name) G01D 7/00 G01D 7/00 302

Claims (2)

(57) [Claims] 1. A display means for displaying a plurality of types of display information data on a plurality of display areas; a display control means for displaying the display information data on a display area of the display means; and a display input to the display control means. Determining means for determining whether the number of pieces of information data exceeds the number of display areas of the display means, and storage means for storing in advance the priority order of each piece of display information data, wherein the display control means When it is determined that the number of the display information data exceeds the number of the display areas, the display information data of the excess and the display information data having a lower priority among the display information data displayed on the display means. Are switched and displayed at predetermined intervals of time. 2. A plurality of types of display information data in a plurality of display areas.
Display means for displaying data, and display information data as described above.
Display control means for displaying in a display area of the means, and this display
The number of display information data input to the control means is displayed above
Determining means for determining whether the number of display areas of the means has been exceeded
And a storage means for storing in advance the priority of each display information data.
And display control means, when it is determined that the number of display information data exceeds the number of display areas , the display control means displays a part of the display information data in order from the one with the highest priority in a regular manner. car dual display controller you characterized in that so as to display a plurality of display information data low priority is switched alternately each half by a set time.