JPS6030783Y2 - Automotive display device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a display device for an automobile that can display a plurality of contents in a switched manner on the same display.

In other words, the present invention is characterized by a device that provides the time display function of a clock and the failure display function of a failure diagnosis device on the same display surface, and in normal times displays at least the time and time-related elements; When an abnormality occurs in a failure detection target in an automobile, a primary warning is issued using the display section of the time-related element of this display means, and when a confirmation operation is performed on the confirmation means, the time display of the display means is switched to detect an abnormality. An object of the present invention is to provide a display device for an automobile that displays item contents of items.

An embodiment of the present invention shown in the drawings will be described below.

FIG. 1 shows the overall structure of an automobile display device according to the present invention.

In this Figure 1, 1 to 6 are detection circuits consisting of sensors attached to various parts of the car to detect various lamps, fluid levels, etc., and output a signal of 0 when normal and 1 when abnormal. It is something to do.

Reference numeral 7 denotes a priority determination circuit, which has a logical configuration to determine the priority order of the detection signals from the detection circuits 1 to 6. In this embodiment, the smaller the number, the higher the priority.

8 is a decoder for secondary warning, and 9 is a decoder for primary warning. Both decoders 8 and 9 select character codes to be displayed according to input signals and drive each display element of display devices 15 and 16. This outputs a display control signal.

10 is a digital clock circuit for time display; 11 is a date;
This is a digital clock circuit for displaying the day of the week, and both circuits 10.
Reference numeral 11 shares main parts such as a crystal oscillator and a frequency dividing circuit.

12.13 is a switching circuit, the former switches both signals from the decoder 9 and the date/day display clock circuit 11 in response to the signal Z from the OR gate 19; the latter switches between the decoder 8 and the time display clock circuit 11. Both signals from the circuit 10 are switched in response to a signal from a manually operated confirmation switch 14 (confirmation means).

The display 15 consists of four 16 segment display elements,
It is for a clock or secondary warning display, and the display 16 is 5
It consists of 16 segment display elements for displaying the date and day of the week or a primary warning.

In addition, ORage-17 and 18 divide the diagnostic items into two systems in this case, perform a logical sum, and form two types of primary warning command signals X and Y.

The detection circuits 1 to 6 and the priority discrimination circuit 7 constitute a detection means, the decoder 8 and the switching circuit 13 constitute a secondary display control means, and the decoder 9, the switching circuit 12, and the OR
The gates 17, 18, and 19 constitute primary display control means, and the displays 15 and 16 constitute display means.

Next, the operation of the above configuration will be explained.

Now, assume that the detection circuit 1 is used for detecting a brake lamp, the circuit 3 is used for detecting a brake fuse, and the circuit 6 is used for detecting a brake pad.

Normal time indicators 15 and 16 display the date, day of the week, and time as shown in FIG.

On the other hand, if the brake fuse is blown, each detection circuit 1~
The signals of output aL bL a2t b2t b3t a3 of 6 are '001000. So, a 1', b
1', a2't b2't b3't a3' signal also becomes '001000J.

Therefore, the signal X == 66111, and x, Y=
44119.66 The decoder 9 is set to display the characters rBRAKEJ when Q°゛. Also, since the signal Z becomes "1", the switching circuit 12 uses the signal from the clock circuit 11 to display the date as shown in Fig. 2. , the day of the week was displayed.
This time, the signal from the decoder 9 causes the signal to be output as shown in Fig.
Display the characters RAKE yo.

For secondary warnings, the switching circuit 13 switches from the time display to the failure item display according to the operation of the confirmation switch 14, and the display 15 is switched on only when the switch 14 is ON.
As shown in Figure 4A (display 'FUSEJ').

Therefore, if the ON state of the confirmation switch 14 is released,
The display on the display 15 returns to that shown in FIG.

Now, let's consider a case where two detection circuits simultaneously generate an abnormality. For example, if the brake lamp burns out while the above-mentioned 'FUSE yo' is displayed on the display 15, the outputs al and bl of detection circuits 1 to 6 will be , b2. b3. a3 is 1
01000. So, a l'g b l'w a
2'g b2't b3't a3' is "00100
From 0J to '100000J, the secondary warning display on the display 15 is as shown in Figure 4B (from 'FUSE' to 'L').
Replaced by AMPJ.

The above operation is the same as described above even if an abnormality occurs in the B group, which monitors other systems given priority within the A group (brake system).

As for how to classify each group, in addition to the above-mentioned functions, it is also possible to divide them into categories related to various lamps, temperature, liquid volume, etc., or to classify them according to priorities for safe driving. .

In the above-mentioned embodiment, the primary warning is displayed by text using the display 16, but the date and day of the week may be blinked at a constant cycle without changing the display content of the display 16, or the display 16 may be It is also conceivable to use only the middle display element for the primary warning, and to classify and indicate groups in which an abnormality has occurred using various symbols.

In addition, in the above-mentioned embodiment, the display 15 is switched and displayed only during manual operation of the confirmation switch 14, but a timer circuit is added to the switch 14, and a one-touch operation of the switch 14 causes the eyes to be opened dynamically for a certain period of time. It may be displayed in a different manner.

Further, the display devices 15 and 16 are not limited to 16-segment display elements, but may be dot display elements or the like as long as they can display alphabets, numbers, and symbols.

As described above, in the device of the present invention, normally, at least the time and time-related elements are displayed close to each other on the same display surface, and at least the time display portion is configured to be switchable to display predetermined item contents. means, a detection means for detecting the state of each detection item of each part of the vehicle, and this detection means also detects that an abnormal situation has occurred in at least one of the plurality of detection items, and the detection continues. while the primary display control means provides a primary warning display indicating the occurrence of an abnormal situation using the display portion of the time-related element in the display means, and a confirmation operation by the driver etc. to confirm the details of the abnormal situation. confirmation means that generates a confirmation signal when the confirmation signal is generated, and when the confirmation signal is generated from the confirmation means, the item contents of the abnormal situation occurrence item detected by the detection means are displayed in place of the time display, and from this state, the Since the device is equipped with a secondary display control means that returns the item content display portion to the time display when the confirmation signal is no longer generated, by separating the display portions for the primary warning and the secondary warning, it is possible to indicate that an abnormal situation has occurred. It is possible to inform the driver of the warning and also inform the time.If you want to know the details of the failure location, you can display the time instead of the time by confirming with the confirmation means, and when the confirmation is completed, the display means will display the time. The primary warning indicator returns to the time display, and the primary warning can continue to notify the abnormality state while notifying the time.Therefore, since the abnormality state will not be forgotten, it is possible to repair the abnormality occurrence. This method has an excellent effect in that it can reliably perform the following steps.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing one embodiment of the device of the present invention, and FIG.
FIG. 3, FIG. 4A, B, and C are explanatory diagrams showing the display state of the display of the device of the present invention. 1 to 6...Detection circuit, 7...Priority discrimination circuit, 8.9...Decoder, 10, 11...
...Digital clock circuit, 12,13...Switching circuit, 14...Confirmation switch, 15.16.
...Display, 17, 18, 19...OR
Gate.

Claims (1)

[Scope of utility model registration request] Normally, at least the time and time-related elements are displayed close to each other on the same display surface, and at least the time display portion is configured to be switchable to display the contents of predetermined items, and each of the detection items of each part of the automobile is provided. a detection means for detecting the state of the display means, and a detection means for detecting that an abnormal situation has occurred in at least one of the plurality of detection items, and while the abnormal situation continues, the time-related element on the display means is displayed. a primary display control means that uses a display portion to display a primary warning indicating the occurrence of an abnormal situation; and a confirmation means that generates a confirmation signal when a confirmation operation is performed by a driver or the like to confirm the content of the abnormal situation. When a confirmation signal is generated from the confirmation means, the item contents of the abnormal situation occurrence item detected by the detection means are displayed in place of the time display, and when the confirmation signal is no longer generated from this state, the item contents are displayed. A display device for an automobile, comprising: a secondary display control means for returning a portion to a time display.