JP3510390B2 - Automotive multiple display - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multiple display device for an automobile, which is provided on an instrument panel of an automobile and used for displaying driving information and warning information.

[0002]

2. Description of the Related Art Conventionally, on an instrument panel (instrument panel) of an automobile, lights are lit when lights, an auto-cruise device, etc. are activated, or when an engine, a braking device, etc. fail.
Various indicator lights are provided. The indicator lamp is turned on based on driving information and warning information from various sensors and the like, and gives various warnings and warnings to the occupant by various identification symbols drawn on its display surface.

By the way, in recent years, the number of items to be displayed on the indicator light is 30 due to the increase of auxiliary devices accompanying the high performance and high performance of automobiles and the increase of various devices for improving the safety and comfort of passengers. The number is up to 50 points. Therefore, if these are to be displayed by individual display lamps, a large number of display lamps must be arranged in a limited space on the instrument panel, which causes a problem in layout. Further, in such a case, each indicator light is inevitably small, so that there is a problem that it is difficult for an occupant to recognize it when the light is turned on. Therefore, Japanese Utility Model Laid-Open No. 4-35191 proposes a multiple display device in which a relatively large LCD (liquid crystal display) or the like is arranged in the central portion of the instrument panel or the like, and a plurality of displays are performed on the LCD. There is. In this type of multiple display device, while the occupant operates the changeover switch to sequentially display the normal display items such as the battery voltage and the total traveled distance, when the coolant temperature rises abnormally or the braking device fails, etc. Instead of the normal display item, the warning display item is automatically displayed.

[0004]

In the above-mentioned multiple display device, it is inevitable that the number of change-over switches will increase if the occupant is allowed to freely change the screen display. For example, mode switch and for sequentially displaying a plurality of display items, other <br/> Ru select switch is switched to the display screen in each display item, the set-reset used for setting and time adjustment of travel schedules A switch and a display off switch for stopping the screen display are required at the minimum. However, when a large number of changeover switches are arranged in a limited installation space such as a meter cluster, the layout becomes difficult and the occupant's view tends to be complicated. Further, if a sufficient installation space cannot be secured, there is a possibility that the pressing surface area or interval of each changeover switch becomes small and the frequency of erroneous operation becomes high.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a multiple display device for an automobile which realizes a reduction in the number of changeover switches while ensuring a display changeover function.

[0006]

In order to achieve this object, therefore, in claim 1 of the present invention, a plurality of display items corresponding to the driving information of the automobile and the operation management information are displayed on the display section in the cab. In a multiple display device for an automobile to be displayed, an operating state detecting means for detecting an operating state of a device constituting the automobile and outputting a detection signal, and a display item corresponding to the detection signal of the operating state detecting means are displayed on the display section. The display control means for displaying on the display control means, the mode switch for outputting a command for sequentially displaying the display items on the display control means by the operation of the occupant, and the display control means within the display items by the operation of the occupant. and a select switch for outputting a command for switching the display screen, when occupant, who operate the corresponding mode switch and the select switch simultaneously, the display control Suggest that instruction to the display unit on the non-display mode in step is to be outputted.

According to a second aspect of the present invention, in the multiple display device according to the first aspect, the display control means includes the display.
Section is in non-display mode, the alarm information is
When the information is input, the display is switched to the warning display mode.
I propose the one that outputs the command to do.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a multiple display device according to the present invention will be described in detail below with reference to the drawings. FIG. 1 is a schematic configuration diagram showing an embodiment of a multiple display device applied to a large truck. In the figure, reference numeral 1 denotes an LCD type display, which is arranged at the center of the meter cluster on the instrument panel. The display 1 is drive-controlled by an ECU 2 installed under the driver's seat,
It is illuminated by green and red LEDs (light emitting diodes) 3 and 4 which are also drive-controlled by the ECU 2. E
The CU 2 is an input / output device (not shown), a storage device (ROM, RAM, BURAM) that incorporates image data, a calendar and the like.
Etc.), central processing unit with a quartz clock (CP
U) etc. On the input side of the ECU 2, the vehicle speed sensor 5, the fuel consumption sensor 6, the alternator L terminal 7, the door sensor 8, the water temperature sensor 9, the air pressure sensor 10, the disk pad sensor 11, the oil level sensor 12, the oil pressure sensor 13, etc. , Many sensors and devices are connected.

In the drawing, reference numeral 15 is a control panel provided on the instrument panel, which is a mode switch 1
6, a select switch 17, and a set / reset switch 18 are arranged. Each switch 16, 17, 18
Are respectively connected to the ECU 2, the mode switch 16 and the select switch 17 are used for switching the display, and the set / reset switch 18 is used for setting the operation schedule and the like. Further, 20 is a warning buzzer installed under the instrument panel, etc.
2 is connected to the output side. Further, 21 is an analog type oil pressure gauge installed on the instrument panel,
The lubricating oil pressure of the engine is displayed based on the output signal (electrical resistance value) from the oil pressure sensor 13.

The flowcharts of FIGS. 2 to 3 and FIG.
The operation of the multiple display device according to the present embodiment will be described in detail with reference to the display screen of FIG. When the driver turns on the ignition key to start driving the automobile, the display mode of the display 1 first becomes the voltage / trip display mode of M1 in FIG. 2, which is the normal display mode. In this display mode, the ECU 2 controls the alternator L terminal 7
Based on the voltage information from and the cumulative distance information in ROM,
The battery voltage and the trip meter are displayed on the display 1 as shown in FIG. The trip meter alternately switches between A and B when the occupant pushes the select switch 17, and, for example, the traveling distance from the start of operation and the traveling distance after refueling are displayed. Also, A, B
The trip meters are reset to 0 by the occupant operating the set / reset switch 18. Further, the ECU 2 lights up the green LED 3 in the normal display mode to make the occupant recognize that no abnormal situation has occurred.

In the voltage / trip display mode,
When the occupant pushes the mode switch 16, the display mode of the display 1 is switched to the time display mode of M2. In this display mode, the ECU 2 causes the display 1 to display the current time based on the time information of the built-in quartz clock. When the battery is attached or detached, the time information can be corrected by using the set / reset switch 18.

When the passenger presses the mode switch 16 in the time display mode, the display mode of the display 1 is switched to the calendar display mode of M3. In this display mode, the ECU 2 uses the calendar information to
As shown in FIG. 6, the current date is displayed on the display 1. Note that the calendar information can also be corrected using the set / reset switch 18, as with the time information.

When the passenger presses the mode switch 16 in the calendar display mode, the display mode of the display 1 is switched to the operation schedule display mode of M4. In this display mode, the ECU 2 displays the operation schedule on the display 1 as shown in FIG. 7, based on the operation schedule information stored in the RAM. That is, in the operation schedule display mode, every time the occupant presses the select switch 17, the estimated time of arrival at the destination, the remaining distance, and the target average speed are sequentially displayed.
Here, the estimated arrival time is a time at which the destination is considered to be reached in the current driving situation, and is calculated from the remaining distance and the average vehicle speed up to the present time. The target average vehicle speed is the average vehicle speed for arriving by the estimated arrival time, and is calculated from the remaining distance and the remaining time. In the operation schedule display mode, the display 1 is switched from the display screen to the input screen by operating the set / reset switch 18, and the distance to the destination and the estimated arrival time can be set.

When the passenger presses the mode switch 16 in the operation schedule display mode, the display mode of the display 1 is switched to the operation time mode of M5. In this display mode, the ECU 2 displays the operating time on the display 1 as shown in FIG. 8 based on the operating time information stored in the RAM. That is, in the operating time display mode, every time the occupant presses the select switch 17, the running time (drive time) after resetting, the engine starting time (engine on time), and the non-running time (loss time) of the engine starting time. ) And are displayed in sequence. The lost time is the time when the engine was stopped while the engine was running due to traffic jams, breaks, and so on.

When the occupant presses the mode switch 16 in the operation time mode, the display mode of the display 1 is switched to the inspection and maintenance memory display mode of M6 in FIG. In this display mode, the ECU 2 causes the display 1 to display the inspection and maintenance memory as shown in FIG. 9 based on the inspection and maintenance information stored in the RAM. That is, in the inspection and maintenance memory display mode, every time the occupant presses the select switch 17, the last engine oil, transmission oil, diff gear oil, and coolant replacement time (accumulated mileage and date) input during the previous inspection and maintenance is entered. ) Are sequentially displayed.

When in the inspection and maintenance memory display mode,
When the occupant pushes the mode switch 16, the display mode of the display 1 is switched to the average vehicle speed display mode of M7. In this display mode, the ECU 2 causes the display 1 to display the average vehicle speed after reset as shown in FIG. 10, based on the average vehicle speed information stored in the RAM. When the vehicle is in the average vehicle speed display mode, the occupant switches to the mode switch 1
When 6 is pressed, the display mode of the display 1 is switched to the hydraulic pressure display mode of M8. In this display mode,
Based on the hydraulic pressure information from the hydraulic pressure sensor 13, the ECU 2
As shown in FIG. 11, the lubricating oil pressure of the engine is displayed. The oil pressure sensor 13 is an analog type oil pressure gauge 21 as described above.
The occupant can monitor the hydraulic pressure at all times. When the occupant presses the mode switch 16 in the hydraulic pressure display mode, the display mode of the display 1 returns to the voltage / trip display mode of M1. Further, when the mode switch 16 is normally pressed, the display mode is switched only once, but the display mode is continuously switched by continuously pressing the mode switch 16. Therefore, if the occupant continues to press the mode switch 16, the normal display mode from M1 to M8
It is repeatedly displayed on the display 1.

On the other hand, when the warning information is input from the various sensors described above in the normal display mode from M1 to M8, the ECU 2 shifts to the warning display mode of M9. In the warning display mode, the ECU 2 interrupts the normal display, displays the warning display on the display 1, and turns on the red LED 4 to make the occupant recognize the occurrence of the abnormal situation. At this time, when a plurality of pieces of warning information are input, the ECU 2 causes the display 1 to sequentially display a plurality of corresponding warning displays at predetermined intervals.

For example, when the ECU 2 recognizes that the cooling water temperature has risen abnormally due to the input signals from the water temperature sensor 9 and the disk pad sensor 11 and that the remaining amount of the disk pad has decreased, it is shown in FIG. The overheat display and the disk pad display shown in FIG. 13 are repeated. Further, the ECU 2 displays the door (half door) shown in FIG. 14, the preheat display shown in FIG. 15, according to the other warning information.
Various warning displays such as the clutch wear display shown in FIG. 16 are displayed according to the display priority order. In the present embodiment, when the mode shifts to the warning display mode, the ECU 2 alerts the occupant with the warning display on the display 1 and the beep sound from the warning buzzer 20.

When the ECU 2 shifts to the warning display mode, it displays a warning until warning information from the sensors is no longer input (that is, until the cooling water temperature drops or the disk pad is replaced). By pressing the mode switch 16, the normal display mode is restored for a predetermined time (1 minute in this embodiment). This is because the occupant needs to confirm the time and the like even in the warning display mode, and by pressing the mode switch 16 during this time, the display is switched between the normal display modes.

When the display on the display 1 is uncomfortable during night driving, in this embodiment, the passenger presses the mode switch 16 and the select switch 17 at the same time so that the normal display mode M10 is not displayed. Switch to mode. In the non-display mode, the ECU 2 stops the display on the display 1 and turns off the LED 3 at the same time. Although the normal display is not performed in the non-display mode, when the warning information is input from the sensors, the ECU 2 shifts to the warning display mode of M9 and causes the display 1 to perform the warning display. When the occupant pushes the mode switch 16 in the non-display mode, the display mode of the display 1 returns to the normal display mode immediately before the non-display mode.

As described above, in the present embodiment, the display 1 is set to the non-display mode by the occupant pressing the mode switch 16 and the select switch 17 at the same time, so that the display off switch used conventionally is unnecessary. Became. As a result, the layout around the meter cluster can be facilitated, the individual switches can be made large, and the frequency of erroneous operation by the occupant can be reduced.

Although the description of the specific embodiments has been completed, the embodiments of the present invention are not limited to the above embodiments. For example, in the above embodiment, the first and second changeover switches are the mode switch and the select switch, but either one may be the set / reset switch.
Further, the third display switching command may be a display switching command other than the non-display mode, such as switching the normal display mode in the reverse order. Further, although the LCD is used for the display unit in the above embodiment, a CRT or the like may be used. Furthermore,
Specific device configurations, display switching procedures, and the like can be changed without departing from the gist of the present invention.

[0023]

As described above in detail, according to claim 1 of the present invention, an automobile displaying a plurality of display items according to the driving information of the automobile, operation management information and the like on the display section in the cab. In the multiple display device for vehicle, an operating state detecting means for detecting an operating state of the device forming the automobile and outputting a detection signal, and a display item corresponding to the detection signal of the operating state detecting means are displayed on the display section. Display control means, a mode switch for outputting a command for sequentially displaying the display items on the display control means by an operation of an occupant,
The occupant of the operation, and a select switch for outputting a command for switching the display screen in the display item on the display control means, when occupant, who operated the mode switch and the select switch at the same time, the Since the command for setting the display unit to the non-display mode is output to the display control means, the number of changeover switches can be reduced, the layout to the meter cluster and the like can be facilitated, and individual changeovers can be performed. The switch can be made larger, and the frequency of erroneous operation by the passenger is also reduced.

According to a second aspect of the present invention, in the multiple display device according to the first aspect, the display control means includes the display section.
In the non-display mode, the alarm information is sent from the operating state detecting means.
When input, shifts the display to the warning display mode
Because it assumed that outputs a command for the passenger display unit
Entering warning information even when the display mode is set
When power is applied, it can shift to the warning mode to call attention to the occupants .

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing an embodiment of a multiple display device according to the present invention.

FIG. 2 is a flowchart showing a procedure of multiple display.

FIG. 3 is a flowchart showing a procedure of multiple display.

FIG. 4 is a display screen in a voltage / trip display mode.

FIG. 5 is a display screen in a time display mode.

FIG. 6 is a display screen in a calendar display mode.

FIG. 7 is a display screen in an operation schedule display mode.

FIG. 8 is a display screen in an operating time mode.

FIG. 9 is a display screen in an inspection and maintenance memory display mode.

FIG. 10 is a display screen in an average vehicle speed display mode.

FIG. 11 is a display screen in a hydraulic pressure display mode.

FIG. 12 is a display screen in a warning display mode.

FIG. 13 is a display screen in a warning display mode.

FIG. 14 is a display screen in a warning display mode.

FIG. 15 is a display screen in a warning display mode.

FIG. 16 is a display screen in a warning display mode.

[Explanation of symbols]

1 display 2 ECU 3,4 LED 5 vehicle speed sensor 6 Fuel consumption sensor 7 Alternator L terminal 8 door sensor 9 Water temperature sensor 10 Air pressure sensor 11 Disk pad sensor 12 Oil level sensor 13 Oil pressure sensor 15 Control panel 16 mode switch 17 Select switch 18 set / reset switch 20 Warning buzzer 21 Oil pressure gauge

─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-4-92596 (JP, A) JP-A-62-39718 (JP, A) JP-A-2-164637 (JP, A) Actual flat 2- 146694 (JP, U) Actual Kaihei 4-35191 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) B60R 16/02 640,650 G09G 3/20 G09G 5/00 510

Claims (2)

(57) [Claims] 1. A multiple display device for a vehicle, which displays a plurality of display items corresponding to driving information of a vehicle, operation management information, etc. on a display section in a driver's cab, by detecting an operating state of a device constituting the vehicle. An operating state detecting means for outputting a detection signal, a display control means for displaying a display item corresponding to the detection signal of the operating state detecting means on the display section, and an operation of an occupant for displaying the display item on the display control means. a mode switch for outputting a command to sequentially displayed by an occupant of the operation, and a select switch for outputting a command for switching the display screen in the display item on the display control means, occupant, the mode When the switch and the select switch are operated at the same time, a command for setting the display unit to the non-display mode is output to the display control means. Characterized the door, multi-display device for motor vehicles. 2. The display control means outputs a command for shifting the display section to the warning display mode when the display section is in the non-display mode and the alarm information is input from the operating state detecting means. The multiple display device for an automobile according to claim 1, characterized in that: