JPS64647B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a display device for a vehicle that displays the status of various display target items of a vehicle on a display screen provided in a vehicle interior.

Conventionally, there is a display device for vehicles as disclosed in Japanese Patent Application Laid-Open No. 55-29712, which displays the status of various display items of a vehicle in a predetermined pattern on a display device such as a cathode ray tube display. There is.

However, since the display pattern is predetermined, the arrangement display state cannot be freely changed, and there is a problem in that it is not possible to provide versatility for various arrangement displays.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a display device for a vehicle that can freely change the array display state according to an external operation and has versatility for various array display states. That is.

In order to achieve the above object, the present invention includes a display means installed in a vehicle interior and having a display surface that displays the status of various display target items in the vehicle in a predetermined arrangement and that can change the display status; a plurality of detection means for individually detecting the states of various display target items; a first storage means storing a program for displaying the states of the various display target items in an array in a first display pattern; a display signal for inputting respective detection signals from the detection means and displaying the states of the various display target items in an array in the first display pattern according to a program stored in the first storage means; and a display control means for controlling the display means based on a display signal from the processing means to display the states of the various display target items on the display surface in an array, The storage means can be replaced by an external operation with a second storage means storing a program for displaying the states of the various display target items in a second display pattern different from the first display pattern. It is characterized by

The present invention will be described below with reference to embodiments shown in the drawings. FIG. 1 is an overall configuration diagram showing one embodiment of the present invention, which uses an on-vehicle microcomputer that executes digital arithmetic processing by software according to a predetermined control program.

In Fig. 1, numeral 1 is a vehicle speed sensor that detects the rotation of a magnetic rotary gear that is linked to the rotation of the wheels using an electromagnetic pickup, and shapes the signal from the electromagnetic pickup into a waveform and converts it into an analog signal. It generates a vehicle speed signal.
Reference numeral 2 denotes a rotational speed detector, which is installed in the distributor and generates a rotational speed signal proportional to the engine rotational speed at that time. 3 is the liquid level sensor,
The position of the float floating on the fuel liquid level in the fuel tank is detected based on the resistance value, and a liquid level signal corresponding to the detected position is generated. Reference numeral 4 denotes a water temperature sensor that detects the engine cooling water temperature using a thermistor and generates a water temperature signal corresponding to the engine cooling water temperature.
Reference numeral 5 denotes an inside temperature sensor, which is installed on the upper left side of the instrument panel and detects the room temperature of the vehicle and generates an inside temperature signal corresponding to the room temperature of the vehicle. Reference numeral 6 denotes an outside temperature sensor, which is installed behind the front grille and detects the outside air temperature and generates an outside temperature signal according to the outside air temperature. 7 is an A/D converter that converts an analog signal into a digital signal, which includes a vehicle speed signal from the vehicle speed sensor 1, a rotation speed signal from the rotation speed detector 2, a liquid level signal from the liquid level sensor 3, and a water temperature sensor 4.
The water temperature signal from the air temperature sensor 5, the inside temperature signal from the inside temperature sensor 5, and the outside temperature signal from the outside temperature sensor 6 are sequentially converted into digital signals. 8 is a clock circuit, which includes a crystal oscillator for clocking and several frequency dividers that divide the oscillation signal from this crystal oscillator into several stages, the final stage of which divides the frequency of the oscillation signal corresponding to the current time. It includes an output circuit that holds a time signal, receives a read signal from the outside, and outputs the time signal. 9 is an operation switch for enlarged display, and it has 5 reset push button switches for inside temperature (TR), outside temperature (TAM), time (CLK), water temperature (TMP), and remaining fuel amount (FUEL). A pulse enlarged display signal is generated in response to each switch being turned on. A timer circuit 10 includes a frequency divider for dividing the frequency of the oscillation signal from the crystal oscillator in the clock circuit 8, and sends out a unit pulse every 0.1 seconds.

A microcomputer 11 executes digital arithmetic processing of software according to a predetermined control program, and constitutes an arithmetic processing means, and receives digital signals from the detection means 1 to 6 via the A/D converter 7; Time signal from clock circuit 8, enlarged display signal from operation switch 9, timer circuit 1
It receives unit pulses starting from 0 and executes various calculations, judgments, and other processes, and generates display signals for CRT display and audio signals for audio generation, which will be described later.

12 is a video RAM (V-RAM), which receives display signals from the microcomputer 11, i.e.
Receives the address designation signal of the address corresponding to the pixel of the CRT display and the color designation signal that designates the color of that pixel,
Color designation signals are stored at addresses corresponding to pixels on a CRT display. 13 is V-RAM
A conversion circuit which together with 12 constitutes a display control means.
A synchronization signal generation circuit that generates a vertical synchronization signal once every 16.6 msec and a horizontal synchronization signal once every 63.5 μsec, and both the vertical and horizontal synchronization signals from this synchronization signal generation circuit are used as color specification signals for the V-RAM 12. It is equipped with a color conversion circuit that sequentially reads the color designation signal, converts the color designation signal into a color signal, and sends it out as a video signal.
The NTSC system is used, and while the color conversion circuit is converting a color designation signal into a color signal, a synchronization signal generation circuit sends a halt signal to the HALT terminal of the microcomputer 11. 1
4 is a CRT display device, which is similar to a general television consisting of a video amplification circuit, a vertical deflection circuit, a horizontal deflection circuit, a high voltage generation circuit, and a CRT, and which converts the video signal from the conversion circuit 13 to a video terminal. receive it and display it on the CRT (128 pixels vertically x horizontally)
192 pixels). 15 is a speech synthesizer,
It is equipped with an audio data ROM in which audio data for generating audio is stored in each predetermined area in advance, and receives an audio signal from the microcomputer 11, that is, an address designation signal that designates the starting address in a predetermined area of the audio data ROM. When received, the contents of addresses within a predetermined area are sequentially synthesized into voices starting from the first number, and a sound is generated from the speaker 16.
When the final address in a predetermined area is reached, a voice end signal indicating the end of voice synthesis is sent to the microcomputer 11.

The components 1 to 16 described above, except for the clock circuit 8, are operated by power supplied from an on-vehicle battery via an ignition switch.

Next, FIG. 2 shows the microcomputer 11
11a is a central processing unit (CPU) of a microcomputer 11;
Several megahertz (M
Hz) and executes software digital arithmetic processing in synchronization with it.
Using the Motorola MC6802, which has a CPU and a clock generator on a single chip,
c, control bus 11d, data bus 11e
It is connected to a read-only memory (ROM) 11f, a read/write memory (RAM) 11g, and an input/output (I/O) circuit 11h for exchanging various information.

The ROM 11f has a program that sequentially stores arithmetic procedures for display control step by step, and the CPU 11a executes the arithmetic processing by sequentially reading out the arithmetic procedures according to the program in the ROM 11f. , various data during the calculation are written and stored in the RAM 11g, and the data is read out when necessary. moreover,
I/O circuit 11h inputs and outputs various signals between the CPU 11a and external equipment of the microcomputer 11.
It is being adjusted.

The ROM 11f is exchangeable with various ROMs having programs for other display patterns by external operation, and constitutes an instruction means.
CRT display device 1 depending on the type of ROM program
4 can be changed to display patterns as shown in FIGS. 3, 4, and 5.

The case where a ROM having a program for the display pattern shown in FIG. 5 is used in the ROM 11f will be described below with reference to the display explanatory diagrams shown in FIGS. 5 to 10 and the calculation flowcharts shown in FIGS. 11 to 19. 5 to 10 are display explanatory diagrams showing various display forms on the CRT display device 14, FIG. 11 is a calculation flowchart showing the overall calculation processing of the microcomputer 11, and FIG. A calculation flowchart showing interrupt calculation processing based on unit pulses, Figure 13 is CRT display device 1
14 is a calculation flowchart showing the calculation process of a subroutine for changing the vertical pixel in the CRT display device 14, and FIG. is a calculation flowchart showing the calculation processing of the water temperature abnormality notification routine in FIG. 11, FIG. 16 is a calculation flowchart showing the calculation processing of the remaining fuel shortage notification routine in FIG. 18 is a calculation flowchart showing the calculation processing of the vehicle speed display routine in FIG. 11; FIG. 19 is a calculation flowchart showing the calculation processing of the rotation speed display routine in FIG. 11. It is.

Now, in a car equipped with this device, when the ignition switch is turned on at the start of operation, a stabilized voltage is supplied from the on-board battery to the various electrical systems shown in FIG. 1 via the stabilized power supply circuit.
Then, in the microcomputer 11,
The arithmetic processing is started at a start step 100 in FIG. 11, and the program proceeds to an initial setting routine 101 in which registers, counters, latches, etc. in the microcomputer 11 are set to initial states necessary for starting the arithmetic processing. This initial state setting operation includes a timer flag, a T voice generation flag, which will be described later.
F sound generation flag, vehicle speed flag, rotation speed flag,
Canceling the time flag, setting the T1st flag, F1st flag, and rotation data X, Y, and Z = 0,
Y=0, Z=0 and old vehicle speed data R S=0,
This includes settings such as R=0.

Then, the process proceeds to the fixed display routine 102,
The fixed display part of the CRT display, i.e. the fifth
"SPEED", "Km/h" in Figures to Figures 10,
A display signal for displaying "TACHO", "x100", and "rpm" in white is generated in the V-RAM 12. The subroutines shown in FIGS. 13 and 14 are used to generate this display signal. When using this subroutine, in the previous step,
Set the address corresponding to the first pixel of the part where the color changes in the vertical or horizontal direction on the CRT display in the HL register (H register is the address for the vertical direction, L register is the address for the horizontal direction)
Then, set the data that specifies the color (using 3-bit data so that 8 types of colors can be specified) in the A register, and set the data for the length in the vertical or horizontal direction that changes the color in the B register. It is set. That is, when using the vertical subroutine of FIG. 13, first, in step 301, the contents of the BH register are saved in respective predetermined areas of the RAM 11g, and then, in step 302, the contents of the A register are saved with the contents of the HL register. Specified V-
Transfer to the address of RAM12, add and update the value of the H register by 1 in step 303, and update the value in step 3.
At step 04, the value of the B register is updated by subtracting 1, and at determination step 305, it is determined whether the value of the B register is 0 or not. At this time, if the value of the B register is not 0, the determination is NO and the process returns to step 302. And this step 30
The arithmetic processing from step 2 to judgment step 305 is repeated, and when the value of the B register becomes 0, judgment step 3 is executed.
If the determination in step 05 is YES, the process proceeds to step 306, where the contents of the saved BH register are restored, and the process proceeds to return step 307, returning to the step before proceeding to this subroutine. Further, when using the horizontal subroutine of FIG. 14, the same processing as that of the vertical subroutine of FIG. 13 is performed except that the L register of the address in the horizontal direction is used. That is, step 40
1, the contents of the BL register are stored in RAM11.
In step 403, L is evacuated to a predetermined area of
The value of the register is added by 1, and in step 406, the saved contents of the BL register are restored.
In other steps 402, 404, 405, the 13th
Processing similar to steps 302, 304, and 305 in the figure is performed. By using the subroutines shown in FIGS. 13 and 14 and their combination, first, a display signal that makes the CRT display screen all black is sent to the V-RAM1.
2, and then generates a display signal for each fixed display item in its V-RAM 12.

Then, the process proceeds to the next various signal input step 103, where the A/D converter 7 is controlled to receive the vehicle speed signal from the vehicle speed sensor 1, the rotation speed signal from the rotation speed detector 2, and the like.
A liquid level signal from the liquid level sensor 3, a water temperature signal from the water temperature sensor 4, an inside temperature signal from the inside temperature sensor 5,
The outside temperature signal from the outside temperature sensor 6 is sequentially converted into a digital signal, and each of the converted digital signals (vehicle speed data S, rotation speed data R,
Remaining fuel data FUEL, water temperature data TMP, inside temperature data TR, outside temperature data TAM) and time data CLK from the clock circuit 8 are sequentially stored at predetermined locations in the RAM 11g. Then, the process proceeds to the next timer flag determination step 104, where it is determined whether or not the timer flag is set.
The answer is NO, and the process proceeds to water temperature determination step 105. In this water temperature determination step 105, the water temperature data TMP input and stored in the various signal input step 103 is
It is determined whether or not the water temperature data TMP is equal to or higher than the value corresponding to 90℃, but at this time, if the value of the water temperature data TMP is low immediately after starting to drive this car, this determination is not possible.
The result is NO, and the process proceeds to step 106 for determining remaining fuel.
In this remaining fuel determination step 106, the remaining fuel data input and stored in the various signal input step 103 is
It is determined whether FUEL is less than or equal to the value corresponding to 5. At this time, if the remaining fuel amount is sufficient and the value of the remaining fuel data FUEL is sufficiently high, the determination is NO.
The process then proceeds to the normal display routine 107. In this normal display routine 107, the CRT display device 14
The water temperature data input and stored in the various signal input step 103 to display the array as shown in FIG.
TEMP, remaining fuel data FUEL, internal temperature data
Figure 13 based on the values of TR and outside temperature data TAM,
Each display signal is generated in the V-RAM 12 using the subroutine of FIG. 14 and its combination. In addition, in Figure 5, the shaded area is red,
“TEMP”, “FUEL”, “TR”, “TAM”, and “℃” are designated as white, and other parts are designated as green. Further, one range of the water temperature per graph display corresponds to 7°C, and one range of the remaining fuel amount per graph display corresponds to 4.

Then, the process proceeds to the next time flag determination step 108, where it is determined whether or not the time flag is set. However, if the time flag remains cleared due to the initial setting, the determination becomes NO. And T1
Proceed to the first flag setting step 111 to set the T1 flag, and then proceed to the F1 flag setting step 1.
The process proceeds to step 12, where the F1 flag is set, and the process proceeds to TEMP expansion determination step 113. In this TEMP enlargement determination step 113, the operation switch 9
It is determined whether or not a TEMP enlargement display signal is generated based on the turning on of the TMP switch. If the TEMP switch is not turned on, the judgment becomes NO and the process proceeds to FUEL enlargement judgment step 114. In this FUEL enlargement judgment step 114, the FUEL is increased from the operation switch 9 based on the input of the FUEL switch.
Determine whether an enlarged display signal is generated,
If the FUEL switch is not turned on, the determination becomes NO and the process proceeds to step 115 for CLK expansion determination. In this CLK expansion determination step 115,
It is determined from the operation switch 9 whether or not a CLK enlarged display signal is generated based on the turning on of the CLK switch. If the CLK switch is not turned on, the judgment becomes NO, and TR enlargement judgment step 1 is performed.
Proceed to step 16. In this TR enlargement determination step 116, it is determined whether or not a TR enlargement display signal is generated from the operation switch 9 based on the turning on of the TR switch.If the TR switch is not turned on, the judgment becomes NO, and TAM enlargement judgment is made. Step 11
Proceed to step 7. In this TAM enlargement determination step 117, it is determined whether or not a TAM enlargement display signal is generated from the operation switch 9 based on the turning on of the TAM switch.If the TAM switch is not turned on, the judgment becomes NO, and the sound generation routine is performed. 70
Go to 0. In this voice generation routine 700, the calculation process starts from the T voice flag determination step 701 in FIG. 17, and it is determined whether the T voice flag is set, but the T voice flag is cleared in the initial setting. Therefore, the judgment becomes NO,
Proceeding to F voice flag determination step 708, it is determined whether or not the F voice flag is set. However, since the F voice flag is cleared in the initial setting, the determination becomes NO, and the voice generation routine 700
After completing one calculation process, the process proceeds to vehicle speed flag determination step 128 in FIG. In this vehicle speed flag determination step 128, it is determined whether or not the vehicle speed flag is set. However, if the vehicle speed flag remains cleared by initial setting, the determination becomes NO, and the process proceeds to rotation speed flag determination step 130.
In this rotation speed flag determination step 130, it is determined whether or not the rotation speed flag is set.
If the rotation speed flag remains cleared according to the initial setting, the determination becomes NO, and the process returns to the various signal input step 103. Thereafter, from this various signal input step 103 to the rotation speed flag determination step 13
A series of arithmetic operations in the main routine to 0 took several hundred meters.
Repeat at a period of sec.

On the other hand, when the timer circuit 10 generates a unit pulse every 0.1 seconds in response to the repeated calculations in the main routine, the main routine calculation processing is temporarily interrupted and the interrupt calculation processing shown in FIG. 12 is executed. That is, the interrupt calculation process starts from the interrupt start step 200 in FIG.
1 and adds 1 to the number of times data X to update it. Then, the process proceeds to the X determination step 202, where it is determined whether or not the number data X is 2. When the number data X is not 2, the determination is NO, but when the number data X is 2, the determination is YES. Natsute X
Proceed to reset step 203. And this X
At reset step 203, rotation speed data X is set to 0.
and set the rotation speed flag in step 204.
The process proceeds to step 205 to set the rotational speed flag, and proceeds to Y addition step 205. Furthermore, the X determination step 202
Even when the determination is NO, the process proceeds to Y addition step 205. In this Y addition step 205, 1 is added to the number of times data Y to update it. Then, proceeding to Y determination step 206, it is determined whether or not the number data Y is 5. When the number data Y is not 5, the determination becomes NO, but when the number data Y is 5, the determination becomes YES. Then, proceed to Y reset step 207. Then, in this Y reset step 207, the number of times data Y is reset to 0, and the process proceeds to vehicle speed flag setting step 208, where the vehicle speed flag is set.
The process advances to Z addition step 209. Also, when the determination in the Y determination step 206 is NO, the process proceeds to the Z addition step 209. In this Z addition step 209, 1 is added to the number of times data Z to update it. Then, the process advances to Z determination step 210 and the number of times data Z
is 10 or not, and when the number data Z is not 10, the judgment becomes NO and the process proceeds to return step 213, but when the number data Z is 10, the judgment becomes YES and the process proceeds to Z reset step 211.
Proceed to. And this Z reset step 211
The number of times data Z is reset to O in step 212, a time flag is set in time flag setting step 212, and the process proceeds to return step 213. Then, in this return step 213, the main routine that was temporarily interrupted is returned to. That is, this interrupt routine is reached every 0.1 seconds, and the rotational speed flag is set every 0.2 seconds, the vehicle speed flag is set every 0.5 seconds, and the time flag is set every 1 second.

Here, assuming that the rotation speed flag is set in the above-mentioned interrupt routine, when the rotation speed flag determination step 130 in the main routine of FIG. The rotation speed flag is cleared with , and the process proceeds to the rotation speed display routine 900. In this rotational speed display routine 900, the calculation process starts from the rotational speed reading step 901 in FIG. 19, and the old rotational speed data Ro and various signal input steps 103
The input and stored rotational speed data R is read out. Then, the process proceeds to deviation determination step 902, and the absolute value of the difference between the rotation speed data R and the old rotation speed data Ro is determined.
It is determined whether the value is greater than or equal to 100r.pm, and when it is smaller than the value equivalent to 100r.pm, that is, when there is no need to change the rotational speed display, the determination becomes NO and the rotational speed display routine is executed. 1 of 900
The calculation process is completed, but when the value is equal to or greater than 100 rpm, the determination becomes YES and the process proceeds to the rotation speed determination step 903. In this rotation speed determination step 903, it is determined whether or not the rotation speed data R is greater than or equal to a value corresponding to 6000r.pm, and when it is smaller than the value corresponding to 6000r.pm, the determination becomes NO and the green designation step is executed. Proceed to 904, set the data specifying green to the color specification address of RAM11g,
When the rotation speed data R is equal to or greater than the value equivalent to 600r.pm, the judgment becomes YES and red designation step 9
Proceed to 05 and save the data specifying red to RAM11.
Set it to the color specified address of g, and execute the numerical display routine 90.
Proceed to step 6. In this numerical display routine 906,
A map corresponding to the value of the rotation speed data R is selected from a map of numerical values stored in advance in each predetermined area of the ROM 11f for the numerical display area of the rotation speed on the display surface of the CRT display device 14, and this map and Based on the contents of the color specification address of the RAM 11g and the data specifying black, a display signal is generated to display the numerical value of the rotation speed for the rotation speed data R on the CRT display device 14 (the numerical part is green or red, the other parts are black). Generated in V-RAM12. At this time, if the rotation speed is 2000r.pm, the fifth
The display will look like the one shown (the numerical part is green). Then, the process advances to storage step 907 to store the rotation speed data R.
is stored as the old rotational speed data Ro, and one calculation process of this rotational speed display routine 900 is completed.
That is, in this rotation speed display routine 900,
against the rotational speed values displayed up to that point.
When there is a difference of 100r.pm or more, the rotational speed value is updated, and when the rotational speed value is smaller than 6000r.pm, it is displayed in green, and when it is over 6000r.pm, it is displayed in red, and the overspeed is displayed. A warning is issued by changing the display color.

Further, assuming that the vehicle speed flag is set in the interrupt routine of FIG. 12, when the vehicle speed flag determination step 128 of FIG. 11 is reached, the determination is YES.
, the process proceeds to the vehicle speed flag release step 129, where the vehicle speed flag is released and the vehicle speed display routine 80 is performed.
Go to 0. In this vehicle speed display routine 800, the arithmetic processing starts at vehicle speed reading step 801 in FIG. 18, and old vehicle speed data So and vehicle speed data S input and stored at various signal input step 103 are read out. Then, the process proceeds to deviation calculation step 802, where it is determined whether the absolute value of the difference between the vehicle speed data S and the old vehicle speed data So is greater than or equal to a value equivalent to 1 km/h, and is smaller than the value equivalent to 1 km/h. In other words, when there is no need to change the vehicle speed display, the determination becomes NO and one calculation process of the vehicle speed display routine is completed, but when the value is greater than or equal to 1 km/h, the determination becomes YES and the vehicle speed is determined. Step 8
Proceed to 03. In this vehicle speed determination step 803,
It is determined whether the vehicle speed data S is less than or equal to a value equivalent to 100 km/h, and when it is less than or equal to a value equivalent to 100 km/h, the determination becomes YES and the process proceeds to green designation step 804, where the data designating green color is determined. RAM
11g color specified address, and the vehicle speed data S is
When the value is greater than the value corresponding to 100 km/h, the determination becomes NO and the process proceeds to red designation step 805.
The data specifying the color red is set in the color specifying address of the RAM 11g, and the process advances to the numerical display routine 806. In this numerical display routine 806, a map corresponding to the value of the vehicle speed data S is selected from maps of numerical values stored in advance in each predetermined area of the ROM 11f for the numerical display area of the vehicle speed on the display surface of the CRT display device 14. And this map and RAM11g
The numerical value of the vehicle speed for the vehicle speed data S is displayed on the CRT using the contents of the color specification address and the data specifying black.
The display signal to be displayed on the display device 14 (the numerical part is green or red, the other parts are black) is set to V.
- Occurs in RAM12. At this time, the vehicle speed is 40
If it is Km/h, it will be displayed as shown in Figure 5 (the numerical part is green). Then, the process proceeds to storage step 807, where the vehicle speed data S is stored as old vehicle speed data So, and one calculation process of this vehicle speed display routine 800 is completed. That is, this vehicle speed display routine 8
00, the vehicle speed value is updated when there is a difference of 1 km/h or more from the previously displayed vehicle speed value, and the vehicle speed value is 100 km/h.
The display will be green in the following cases, and red if the speed exceeds 100km/h, and a warning of overspeeding will be issued by changing the display color.

Further, assuming that the time flag is set in the interrupt routine of FIG. 12, when the time flag determination step 108 of FIG. 11 is reached, the determination is YES.
Then, the program proceeds to time flag release step 109 to clear the time flag, and then proceeds to time display routine 110. In this time display routine 110, the time data CLK input and stored in the various signal input step 103 is read out, and the time display area on the display surface of the CRT display device 14 is preset in the ROM 11f.
Select a map for the value of time data CLK from among the maps of numerical values and marks (“AM”, “PM”) stored in each predetermined area of Based on the specified data, the time value and mark for the time data CLK are displayed on the CRT display device 14.
V-RAM12 sends a display signal to display (numbers and marks are green, other parts are black).
occurs in At this time, if the time is 10:08 a.m., the display will be as shown in Figure 5.

Then, the arithmetic processing of the main routine shown in Fig. 11 and the arithmetic processing of the interrupt routine shown in Fig. 12 are executed, and the various displays shown in Fig. 5 are displayed as the water temperature data at that time.
TMP, remaining fuel data FUEL, vehicle speed data S, rotation speed data R, inside temperature data TR, outside temperature data
Change as appropriate according to TAM and time data CLK.

After that, various signal input step 10 in FIG.
The value of water temperature data TMP input in step 3 increases each time it is input, and when it reaches a value equivalent to 90℃,
The determination in the water temperature determination step 105 that comes via the timer flag determination step 104 becomes YES, and
The process advances to water temperature abnormality notification routine 500. In this water temperature abnormality notification routine 500, the calculation process starts from the T1 flag determination step 501 in FIG. 15, and it is determined whether or not the T1 flag is set. Since the T1 flag is set in , the determination becomes YES. Then, the process proceeds to a T1-time flag release step 502 to cancel the T1-time flag, and proceeds to an audio setting step 503 to set the T audio flag and set the number of times data N _T to 1.
, and the process proceeds to black conversion step 504. In this black conversion step 504, a display signal is applied to convert all display areas showing water temperature, remaining fuel amount, inside temperature, outside temperature, and time in FIG. 5 to black.
It is generated in the RAM 12 and the process proceeds to the fixed display routine 505. In this fixed display routine 505, CRT
In order to make the display on the display device 14 as shown in FIG. 7, a display signal is generated in the V-RAM 12 to make the fixed display items, that is, "TEMP", "℃", and the frame of the bar graph display white, respectively. The process advances to a numerical display routine 506. This numerical display routine 5
In 06, water temperature data is displayed from the map of numerical values stored in advance in each predetermined area of the ROM 11f for the display area of 90 numerical values shown in Fig. 7.
Select a map for the value of TEMP, and use this map and the designated data in red and designated data in RAM 11g to display the numerical value of water temperature for the water temperature data TMP on the CRT display device 14 (the numerical part is red, the other parts are A display signal is generated to the V-RAM 12 to make the image appear black (black). At this time, if the water temperature is 90°C, the display will be as shown in Figure 7. Then, the process advances to the next area display step 507, where the area is set at 90°C.
The subroutine shown in Figures 13 and 14 is used to select the water temperature range corresponding to the water temperature data TMP from among the water temperature ranges obtained by dividing the water temperature from 121°C to 2°C into 16 parts, and to color all the selected water temperature ranges in red. and the combination thereof to convert the display signal to V-RAM
Occurs on the 12th. At this time, if the water temperature is 90°C, the area of the first stage (area of 90°C and 91°C) is displayed in red, as shown in Figure 7. Due to this,
The display on the CRT display device 14 is as shown in FIG.

1 of this water temperature abnormality notification routine 500.
Steps 113 to 117 are completed.
The seventeenth step in the voice generation routine 700 via
When the T voice flag determination step 701 shown in the figure is reached, the determination becomes YES because the T voice flag has been set. Then, the number of times determination step 7
02, it is determined whether or not the number data N _T is 1. Since the number data N _T is 1, the determination is YES, and in addition step 704, 1 is added to the number data N _T ( N _T =1+1=2).
Then, the process proceeds to the next number of times determination step 705, where it is determined whether or not the number of times data N _T is 3 or less. Since the number of times data N _T is 2, the determination becomes YES, and the abnormal water temperature sound generation step 707 Proceed to.
In this abnormal voice generation step 707, an address designation signal is generated to the voice synthesizer 15 to designate the starting address of the area for the water temperature abnormality among the voice data areas stored in the voice data ROM of the voice synthesizer 15. Then, F voice flag determination step 7
Proceeding to 08, the determination is NO because the F voice flag is not set, and the voice generation routine 7 is executed.
One calculation process of 00 is completed. As a result, the voice synthesizer 15 starts synthesizing the voice "Suion Gaijyoudesu" and the speaker 16 generates the voice.

After going through various steps, the process goes to the water temperature determination step 105 again, and when the determination becomes YES and the water temperature abnormality notification routine 500 is reached,
The T1 flag determination step 5 arrives first in FIG. 15 because the T1 flag has been cleared.
The judgment of 01 becomes NO, and the numerical display routine 5
06, the one calculation process is completed through the area display step 507. Thereafter, each time the water temperature abnormality notification routine 500 is reached, the above calculation process is executed, and the temperature numerical value and water temperature range shown in FIG. 7 are appropriately changed according to the water temperature data TMP at that time.

On the other hand, in the sound generation routine 700, when the T sound flag determination step 701 in FIG.
The result is YES, and the process advances to the number of times determination step 702, where the number of times data N _T is 2, so the determination becomes NO. The process then proceeds to voice end determination step 703, and if the voice synthesizer 15 has not generated a voice end signal by this point, the determination becomes NO.
After passing through the F voice flag determination step 708, the one calculation process is completed. From then on, the above calculation process is executed every time this voice generation routine 700 is reached,
When the voice end signal is generated from the voice synthesizer 15,
When the voice end determination step 703 is reached, the determination becomes YES due to the change in the signal level.
Then, the process advances to addition step 704 to add the number of times data.
1 is added to N _T ( _NT = 2 + 1 = 3), the process proceeds to the number of times judgment step 705, and since the number of times data N _T is 3, the judgment becomes YES, and the process proceeds to water temperature abnormal sound generation step 707, where the address is A designated signal is generated to the speech synthesizer 16, and one calculation process of the speech generation routine 700 is completed through the F speech flag determination step 708. By this, the speech synthesizer 1
At step 5, the voice synthesis of "Suion Gaijiyoudesu" is started again, and the voice is generated from the speaker 16.

Then, the next time the voice end determination step 703 in this voice generation routine 700 is reached,
Since there is no change in the signal level due to the voice end signal, the determination becomes NO, and the one calculation process is completed through the F voice flag determination step 708. After that, the above calculation process is carried out by this sound generation routine 70.
0, and when a voice end signal is generated from the voice synthesizer 15, a voice end determination step 7 is executed.
When it arrives at 03, the determination becomes YES. Then, the process advances to addition step 704 to add the number of times data N _T
1 is added to (N _T =3+1=4), and the process advances to the number of times judgment step 705. Since the number of times data _N and
After passing through the F voice flag determination step 708, the one calculation process ends. Therefore, when the voice generation routine 700 is entered from the next time, the determination at the T voice flag determination step 701 becomes NO, and the one calculation process is completed via the F voice flag determination step 708.

On the other hand, if the remaining fuel data FUEL reaches a value corresponding to 5 when the water temperature data TMP is smaller than the value corresponding to 90°C, the remaining fuel judgment step 106 that comes via the water temperature judgment step 105 in the main routine of FIG. The determination becomes YES, and the process proceeds to the remaining fuel amount insufficient notification routine 600. In this remaining fuel amount insufficient notification routine 600, as shown in FIG.
The arithmetic processing starts at the F1 flag determination step 601, and since the F1 flag has been set in the F1 flag setting step 112 by then, the determination becomes YES, and the process proceeds to the F1 flag release step 602. The F1 flag is canceled in step 603, the F voice flag is set, and the number of times data _NF is set to 1.The process proceeds to black exchange step 604, where a display signal similar to step 504 in FIG. 15 is set. V-RAM
Occurs on the 12th. And fixed display routine 60
Proceeding to step 5, in order to make the display of the CRT display device 14 as shown in FIG. 6, the V-RAM 1 sends a display signal to make the fixed display items, that is, "FUEL", "", and the frame of the bar graph display white respectively.
2 and proceeds to the numerical display routine 606. In this numerical display routine 606, 5
Select a map corresponding to the value of the remaining fuel data FUEL from among the numerical maps stored in advance in each predetermined area of the ROM 11f for the numerical value display area, and select this map, the red designated data in the RAM 11g, and the black Based on the designated data, a display signal is generated in the V-RAM 12 to display the numerical value of the remaining fuel amount relative to the remaining fuel data FUEL on the CRT display device 14 (the numerical part is red, the other parts are black). At this time, if the remaining fuel amount is 5, the display will be as shown in FIG. Then, the process proceeds to the next area display step 607, where a remaining fuel area corresponding to the remaining fuel data FUEL is selected from among the remaining fuel areas obtained by dividing 0 to 16 into 16 (one area corresponds to 1), and this selected remaining fuel area is 13th to make all red
A display signal is generated in the V-RAM 12 using the subroutines shown in FIGS.
At this time, if the remaining fuel amount is 5, the 5-stage area is displayed in red as shown in FIG. As a result, the display on the CRT display device 14 becomes as shown in FIG.

Then, this remaining fuel amount insufficient notification routine 600
One calculation process is completed, and steps 113 to 1 are completed.
17 to proceed to a voice generation routine 700. Then, the T voice flag determination step 701 in FIG.
F voice flag judgment step 70 arriving via
8 becomes YES, and the number of times judgment step 70
Proceeding to step 9, since the number data N _F is 1, the determination becomes YES, and the process proceeds to addition step 711, where 1 is added to the number data N _F (N _F = 1 + 1 = 2).
Then, the process advances to count determination step 712 and the count data is
Since N _F is 2, the determination becomes YES, and the process advances to step 714 for generating the sound of insufficient remaining fuel. In this step 714 for generating insufficient fuel amount sound, an address designation signal that specifies the starting address of an area corresponding to an insufficient amount of remaining fuel among the audio data areas stored in the audio data ROM of the audio synthesizer 15 is synthesized into a voice. 15, and one calculation process of the voice generation routine 700 is completed. As a result, the speech synthesizer 16 produces
The voice synthesis is started, and the voice is generated from the speaker 16.

After passing through various steps, the process again proceeds to the remaining fuel determination step 106, and when the determination becomes YES and the remaining fuel insufficient notification routine 600 is reached, the F1 flag has been cleared, so the first
The judgment at the F1 flag judgment step 601 that comes first in FIG. Thereafter, each time the remaining fuel quantity shortage notification routine 600 is reached, the above calculation process is executed, and the remaining fuel numerical value and remaining fuel area shown in FIG. 6 are appropriately changed according to the remaining fuel data FUEL at that time.

On the other hand, in the voice generation routine 700, the arithmetic processing is executed from the T voice flag determination step 701 to the F voice flag determination step 708, the number of times determination step 709, and the voice end step 710 until the voice synthesizer 15 generates a voice end signal. When the voice end signal is generated from the voice synthesizer 15, when the voice end determination step 710 is reached, the determination becomes YES due to a change in the signal level, and the process advances to addition step 711, where 1 is added to the number of times data N _F ( N _F =2+1=3) and the number of times judgment step 7
The process proceeds to step 12, where the determination becomes YES, and the process proceeds to step 714 for generating an insufficient amount of remaining fuel voice, where an address designation signal is generated to the voice synthesizer 15, and one calculation process of the voice generation routine 700 is completed. As a result, the speech synthesizer 15
The voice synthesis of "Fusokushitimasu" is started again, and the voice is generated from the speaker 16.

Then, for this voice generation, the voice synthesizer 15
When a voice end signal indicating the end of voice synthesis is generated, the voice end determination step 710 in the voice generation routine 700 makes a YES determination, and the process proceeds to an addition step 711 where 1 is added to the number of times data N _F (N _F =3+1). =4) and number of times determination step 7
The process proceeds to step 12, where the determination becomes NO since the number of times data N _F is 4, and the process proceeds to F voice flag release step 713, where the F voice flag is canceled and the one calculation process is completed. Therefore, when the voice generation routine 700 is entered from the next time, the determinations at the T voice flag determination step 701 and the F voice flag determination step 708 will both be NO, and the one calculation process will be completed.

On the other hand, when the CLK switch of the operation switch 9 is turned on and the CLK enlarged display signal is generated from the contact switch 9, the main routine shown in FIG.
When the CLK expansion determination step 115 is reached, the determination becomes YES. Then, the process proceeds to the time display enlargement routine 120, and uses the subroutines shown in FIGS. 13 and 14 and their combinations to change the display on the CRT display device 14 to the display shown in FIG. 8 using the method described so far. (The time display part is all green) is generated in the V-RAM 12, and the process proceeds to timer flag setting step 123 to set the timer flag, and proceeds to timer data setting step 124 to set the time value of approximately 5 seconds, i.e. The number of times the main routine is repeated for about 5 seconds is set as timer data T. Due to this,
The display on the CRT display device 14 is as shown in FIG.

After passing through various steps from the voice generation routine 700, a timer flag determination step 104 is performed.
When the timer flag is set, the determination becomes YES, and the subtraction step 12 is executed.
Proceed to step 5 and subtract 1 from the value of timer data T.
Proceeding to timer determination step 126, since the timer data T has just started subtracting and the value of timer data T has not reached 0, the determination becomes NO, and the process advances to voice generation routine 700. Then, when the timer data T subtracted in the subtraction step 125 becomes 0 after repeating the above calculation process for about 5 seconds, the determination in the next timer determination step 126 becomes YES, and the timer flag release step 1 is performed.
The process proceeds to step 27, where the timer flag is cleared, and the process proceeds to the sound generation routine 700. After going through various steps from this voice generation routine 700, when the timer flag determination step 104 is reached, the determination is made.
Become NO. Therefore, from now on, what has been displayed up to that point, ie, the normal display in FIG. 5, the enlarged display of insufficient remaining fuel in FIG. 6, or the enlarged display of water temperature abnormality in FIG. 7, is performed. That is, CLK
When the switch is turned on, the enlarged display of FIG. 8 takes priority over other displays for about 5 seconds, and after about 5 seconds, the display returns to what was being displayed up to that point.

Furthermore, when the TR switch of the operation switch 9 is turned on, when the TR enlargement judgment step 116 is reached, the judgment becomes YES, and the process proceeds to the inside temperature display enlargement routine 121. Therefore, the same calculation as the CLK enlargement described above is performed and the CRT is The display on the display device 14 is enlarged for about 5 seconds as shown in FIG. 9 (inside temperature display part is green).

Further, when the TAM switch of the operation switch 9 is turned on, when the TAM enlargement judgment step 117 is reached, the judgment becomes YES and the process proceeds to the outside temperature display enlargement routine 122, so that the display on the CRT display device 14 is stopped for about 5 seconds. Enlarge the display as shown in Figure 10 (the outside temperature display area is green).

Further, when the TEMP switch of the operation switch 9 is turned on, when the TEMP enlargement judgment step 113 is reached, the judgment becomes YES and the process proceeds to the water temperature display enlargement routine 118.
The display is enlarged for about 5 seconds as shown in FIG. 7 (however, the bar graph display is an enlarged version of the one in FIG. 5, with the water temperature region in red and the rest in green).

Furthermore, when the FUEL switch of the operation switch 9 is turned on, when the FUEL enlargement judgment step 114 is reached, the judgment becomes YES and the process proceeds to the remaining fuel amount display enlargement routine 119.
The display is enlarged for about 5 seconds as shown in Figure 6 (however, the bar graph display is an enlarged version of the one in Figure 5, with the remaining fuel area in red and the other areas in green).

In the above embodiment, the ROM 11f has programs for other display patterns.
Even if the display pattern of the CRT display device 14 is set to the display pattern shown in Figure 3 or Figure 4 using Enlarge the display accordingly. In addition,
The change in the array display state by replacing the ROM is not limited to the arrangement, form, and size of display items, but may also change the number and color of display items.

Furthermore, in the above embodiment, when one of the operation switches 9 is turned on, the display corresponding to that switch is enlarged, but as shown in FIG. A circuit 23 may be provided to enlarge the display using voice recognition. That is, the voices of "Nenriyo", "Suion", "Jikoku", "Nikeion", and "Gaikion" are registered in the voice recognition circuit 23, and the user faces the microphone 21 installed near the driver's seat and turns on the power switch 22. When one of the above voices is generated after inputting the input, the input voice is compared with the registered voice and if a match is recognized, a display enlargement signal corresponding to that voice is generated. It's okay. Note that the power switch 22 is attached to the microphone 21, and when it is turned on, the voice recognition circuit 2
This is to supply power to 3.

Furthermore, when the water temperature is abnormal or the amount of remaining fuel is insufficient, the display is enlarged from Fig. 5 to Fig. 6 or Fig. 7. It may be possible to reduce the amount and display it partially.

Furthermore, although the case where abnormality in water temperature is given priority over insufficient amount of remaining fuel has been shown, when the abnormality and the insufficient amount occur at the same time, the enlarged display may be alternately performed at predetermined time intervals.

In addition, the display items include remaining fuel amount, water temperature,
We used the time, inside temperature, outside temperature, vehicle speed, and rotational speed, and used remaining fuel and water temperature as targets for magnified display in the event of an abnormality, but we also used engine oil pressure, various lighting lamps,
The number of display items such as the air conditioning status of the air conditioner may be increased, thereby increasing the number of items to be enlarged and displayed in the event of an abnormality.

Furthermore, it is equipped with a plurality of abnormality detection circuits that are configured independently for each item to be enlarged and displayed in the event of an abnormality, and a normal display circuit that detects all the states of the displayed items. When no detection is detected, each display item is displayed in an array on the CRT display device 14 using the output from the normal display circuit, and when the abnormality detection circuit detects an abnormality, the output from this abnormality detection circuit is used as the output from the normal display circuit. The status of the abnormal display item may be enlarged and displayed on the CRT display device 14, giving priority to the error display item.

Furthermore, although a plurality of display target items are displayed on the display surface of the CRT display device 14, they may be displayed on a display surface using liquid crystal or the like.

As described above, in the present invention, the arrangement display state on the display screen can be freely changed simply by changing the instruction of the instruction means by external operation, and therefore, it is possible to freely change the arrangement display state on the display screen. It has the excellent effect of allowing you to have sex.

[Brief explanation of the drawing]

FIG. 1 is an overall configuration diagram showing an embodiment of the present invention;
FIG. 2 is a block diagram showing the detailed configuration of the microcomputer in FIG. 1, FIGS. 3 to 10 are display explanatory diagrams showing various display forms, and FIG. Figure 12 is a calculation flowchart showing the overall calculation processing; Figure 12 is a calculation flowchart showing interrupt calculation processing based on a unit pulse from the timer circuit; Figures 13 and 14 are calculation flowcharts showing subroutine calculation processing; Figure 15 is a calculation flowchart showing the calculation processing of the subroutine. is a calculation flowchart showing the calculation processing of the abnormal water temperature notification routine in FIG. 11, FIG. 16 is a calculation flowchart showing the calculation processing of the insufficient remaining fuel amount notification routine in FIG. 18 is a calculation flowchart showing the calculation processing of the voice generation routine, FIG. 18 is a calculation flowchart showing the calculation processing of the vehicle speed display routine in FIG. 11, and FIG. 19 is a calculation flowchart showing the calculation processing of the rotation speed display routine in FIG. 11. The flowchart and FIG. 20 are partial configuration diagrams showing another embodiment. 1...Vehicle speed sensor, 2...Rotation speed detector, 3...
...Liquid level sensor, 4...Water temperature sensor, 5...Inside temperature sensor, 6...Outside temperature sensor, 8...Clock circuit,
11...Microcomputer as arithmetic processing means, 11f...ROM constituting instruction means, 1
2, 13...V- constituting the display control means
RAM, conversion circuit, 14...as a display device
CRT display device.

Claims (1)

[Scope of Claims] 1. Display means installed in a vehicle interior and having a display surface that displays the status of various display target items in the vehicle in a predetermined arrangement and that can change the display status; and the various display target items. a plurality of detection means for individually detecting the states of the items; a first storage means storing a program for displaying the states of the various display target items in an array in a first display pattern; and the plurality of detection means. and generate display signals for displaying the states of the various display target items in an array in the first display pattern according to a program stored in the first storage means. a processing means; and a display control means for controlling the display means based on a display signal from the processing means to display the states of the various display target items on the display surface, the first storage means; , characterized in that the state of the various display target items can be exchanged by external operation with a second storage means storing a program for displaying the states of the various display target items in a second display pattern different from the first display pattern. Vehicle display device.