JPH0896274A - Vehicle abnormality display device - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a vehicle abnormality display device capable of displaying both an alarm notification of an abnormality occurrence in each part of a vehicle and information notification of the abnormality on a single display panel. [Structure] A control device 1 that receives a signal 5A from an abnormality detection sensor 5 that detects an abnormality in each part of a vehicle, and sends warning data of this abnormality to a display panel 2 and a display including a plurality of lamps E11 to E53 The display panel 2 includes a panel 2, and the display panel 2 is a vehicle display device in which one lamp corresponding to the alarm data is turned on, and display of abnormality information is selected by a code display instruction switch 6 connected to the control device 1. At this time, the control device 1 sends the code data corresponding to the abnormality information to the display panel 2, and the display panel 2 simultaneously turns on a predetermined plurality of lamps in accordance with the code data so that the display panel 2 as a whole is set to 1 Abnormality information is notified by forming and displaying individual patterns.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle abnormality display device, and more particularly to an alarm display for informing an abnormality including a failure of each part of the vehicle and a code display for informing detailed information such as the cause of the abnormality. The present invention relates to a vehicle abnormality display device which is performed by the display panel.

[0002]

2. Description of the Related Art When an abnormality including a failure occurs in each part of an automobile, a vehicle abnormality display device having a function of displaying an alarm for notifying the abnormality and displaying detailed information of the cause of the abnormality is widely used. ing. An example of such a conventional vehicle abnormality display device described in Japanese Utility Model Laid-Open No. S58-150184 will be described with reference to FIGS. 10 and 11.
In both figures, the vehicle abnormality display device is provided with a plurality of sensors for detecting an abnormality of the vehicle, and the abnormality detection signals 100a to 100n output from the respective sensors are the microcomputer 1
01 is input. Further, the front panel is provided with a mode selection switch for selecting one of the abnormality warning mode and the abnormality location notification mode, and the mode selection signal 102 is supplied to the microcomputer.

When the abnormality warning mode is selected, the microcomputer 101 outputs an abnormality detection signal 10 from any of the sensors.
When 0a to 100n are input, a continuous abnormality alarm signal 104 is output. Further, the microcomputer 101 stores a different code for each abnormal place in the RAM 103 based on the abnormality detection signals 100a to 100n output from each sensor, and when the abnormal place notification mode is selected by the mode selection switch, the microcomputer 101 is stored. The code that is present is read, and the abnormal part notification signal 106 that is composed of a different code for each abnormal part is output.

When the abnormality alarm mode is selected, the microcomputer 10
The abnormality warning signal 104 output from the microcomputer 1 is the microcomputer 101.
Is output to the driver 105, the alarm lamp 107 is continuously turned on, and the driver can know that an abnormality has occurred in any part of the vehicle. Then, when the abnormal part notification mode is selected, the abnormal part notification signal 106 is output from the microcomputer 101 to the driver 105, and the alarm lamp 107 is lit at the number of times of lighting corresponding to a different code for each abnormal part. Therefore, for example, as shown in FIG.
By blinking four times and then blinking three times with a slight interval, it is possible to know that a cooling failure (trouble code 4) has occurred. Alternatively, by blinking seven times continuously, it can be known that a throttle opening failure (trouble code 7) has occurred. In this way, by changing the lighting state of the alarm lamp 107 for displaying the abnormal alarm, one alarm lamp 107 can be used for both purposes.

[0005]

However, in the conventional vehicle abnormality display device as described above, it is very difficult to confirm the display such as the number of times the alarm lamp blinks when the abnormality location notification mode is selected. There was a problem that counting errors frequently occurred. In addition, the counting work requires a long time for confirmation, and it is not clear at a glance that there is a drawback that the user is inconvenienced. Further, as the amount of alarm information increases, the blinking method also becomes complicated, making it difficult to read.

The present invention has been made to solve the above problems and drawbacks, and its purpose is to provide an alarm notification of the occurrence of an abnormality in each part of a vehicle and a notification of information related to the abnormality (for example, an abnormal location). An object of the present invention is to provide an abnormality display device for a vehicle, which can be used as a display on a display panel and can be easily confirmed.

[0007]

In order to achieve the above object, a vehicle abnormality display device according to the present invention receives a signal from an abnormality detection sensor which detects an abnormality in each part of a vehicle and displays warning data of the abnormality. In the vehicle display device, a control device which is organized as a unit and is sent to the display panel, and a display panel which is composed of a plurality of lamps, and the display panel turns on one lamp corresponding to the alarm data is abnormal. A code display instruction switch for selecting display of information is connected to the control device, and when the abnormality information display is selected by the code display instruction switch, the control device displays code data corresponding to the abnormality information in advance on the display panel as display data. Then, the display panel turns on a plurality of predetermined lamps corresponding to the code data at the same time so that one pattern is displayed on the entire display panel. And forming displayed.

Alternatively, the vehicle abnormality display device has the display data composed of a plurality of bits, and the shift register for serially capturing the display data and the display data in the shift register based on the timing of the latch signal. And a latch circuit having a multi-bit configuration,
The control device outputs a plurality of clock pulses to the shift register and further outputs a latch signal to the latch circuit, and the shift register serially outputs the display data composed of the plurality of bits based on the timing of the clock pulse. The display panel is characterized in that a plurality of lamps are turned on or off depending on the contents of each bit of the latch circuit.

Further, the control device receives the storage means for storing the alarm data and the code data, the signal from the abnormality detection sensor and the signal from the code display instructing switch to confirm the content of the abnormality, and to detect the abnormality. Based on the content and the signal from the code display instruction switch, the corresponding alarm data or code data is taken out from the storage means, is output as display data via the parallel / serial converter, and the clock trigger signal and the latch timing signal are further output. Display data generating means for outputting, clock pulse generating means that is triggered based on the clock trigger signal and sends a clock pulse to the shift register, and latch signal generating means that sends a latch signal to a latch circuit based on the latch timing signal. To have And it features.

Alternatively, the control device is provided with a storage means for temporarily storing at least one of the alarm data and the code data corresponding to the abnormality,
The display data generation means may be configured to read and write at least one of alarm data and code data to and from the storage means.

Further, an LCD having the lamp of the display panel as a backlight, and an LCD for driving the LCD
A driver is provided, and the control device outputs display pattern data to be displayed on the LCD to the LCD driver,
The display pattern data may be configured so that all of the LCDs light up when the code display instruction switch is operating.

[0012]

In the vehicle abnormality display device according to the present invention, the alarm display is performed by turning on one lamp, and when the display of the abnormality information is selected by the code display instruction switch, the control device displays the abnormality information in advance. Corresponding code data is sent to the display panel, and the display panel simultaneously turns on a plurality of predetermined lamps corresponding to the code data to form preliminarily associated characters and patterns, resulting in abnormalities. Display information. As described above, according to the present invention, one display panel can be used for both the alarm display of the occurrence of an abnormality in each part of the vehicle and the display of the information (for example, an abnormal place) about the occurred abnormality.

[0013]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is an overall configuration block diagram of an embodiment of a vehicle abnormality display device according to the present invention. In the figure, a vehicle abnormality display device D according to the present invention includes an abnormality detection sensor 5 for detecting an abnormality in each part of a vehicle, and a code display instruction switch 6 for selecting a display of more detailed information regarding the abnormality that has occurred. Is connected to the control device 1, a shift register 4 receiving the display data 12 and the clock pulse 13 transmitted from the control device 1, and the contents of the shift register 4 are latched based on a latch signal 11 transmitted from the control device 1. Latch circuit 3 to be turned on and templates T11 to T11 which turn on or off corresponding to each bit of the latch circuit 3
The display panel 2 has the lamps E11 to E53 incorporated with T53 attached thereto and driven by the driver 2A, a power source 8 connected to the display panel 2, and an ignition switch 7 for connecting and disconnecting the connection.

FIG. 2 is a block diagram of the control device shown in FIG. In the figure, the control device 1 is composed of a microcomputer having a built-in ROM or RAM, a microprocessor having an external ROM or RAM, and a dedicated logic circuit. The control device 1 stores display data generating means 1A having a parallel / serial converter 1G built therein, alarm data 1W and code data 1V, and storage means 1B accessed by the display data generating means 1A, and a clock trigger signal. 21 and the latch signal 11 based on the latch timing signal 22 and the clock pulse generating means 1D that sends the clock pulse 13 to the shift register 4.
To the latch signal generating means 1E.

Further, the alarm data 1 corresponding to the abnormality, which is accessed by the display data generating means 1A.
W or at least one of the code data 1V,
The storage means 1C for temporarily storing may be provided.

The display data generation means 1A accesses the storage means 1B, transmits the clock trigger signal 21 to the clock pulse generation means 1D, and transmits the latch timing signal 22 to the latch signal generation means 1E. Further, the display data generation means 1A accesses the storage means 1C. Here, the storage means 1B is preferably composed of a ROM,
The storage unit 1C is preferably composed of RAM.

FIG. 3 is a front view of the display panel shown in FIG. In the figure, the display panel 2 is arranged in 5 rows and 3 columns, and a total of 15 sets of display elements each consisting of the lamps E11 to E53 and templates T11 to T53 and the display elements arranged around these 15 sets of display elements. Driver 2A. Lamps E11, E12, E13 are arranged in the first row, and lamps E21, E22, E23 are arranged in the second and subsequent rows.
Etc. are similarly arranged. 15 templates T1
The symbols as shown in FIGS. 7 and 8, for example, are arranged in 1 to T53.

FIG. 4 is a perspective view of the vehicle abnormality display device according to the present invention mounted on a vehicle. As shown in the figure, the vehicle abnormality display device D is housed in a housing in which the display panel 2 and the code display instruction switch 6 are exposed, and is mounted on the dashboard.

FIG. 5 is an operation timing chart of the control device, and FIG. 6 is an operation flow chart. FIG. 7 is a front view of the display panel when an alarm is displayed, and FIG. 8 is a front view of the display panel when a code is displayed. The operation of the vehicle abnormality display device D will be described below with reference to these drawings. In FIG. 5, the control device 1 of the vehicle abnormality display device D is an ignition switch 7
The operation is started by turning on (see FIG. 4) (step S1).
The control device 1 first checks the abnormality detection sensor 5 (step S2), and if there is no abnormality (step S2).
3) A loop returns to the check of the abnormality detection sensor 5 (step S2), and if an abnormality occurs (step S2)
3) The contents of the abnormality are confirmed (step S4).

Then, the state of the code display instruction switch 6 is confirmed (step S5). Code display instruction switch 6
If is off, an alarm display for an abnormality has been requested. Here, the display data generation means 1A reads out the corresponding alarm data 1W having, for example, 15 bits from the storage means 1B (step S6), and then outputs the clock trigger signal 21 to trigger the clock pulse generation means 1D. (Step S8). The clock pulse generator 1D triggered by this causes the clock pulse 13
To the shift register 4.

Then, the display data generating means 1A drives the built-in parallel / serial converter 1G (step S
9), the read 15-bit alarm data 1W is parallel / serial converted to generate 15-bit serial display data 12. The shift register 4 captures the display data 12 bit by bit for each clock pulse 13 that is input. After all the bits have been taken in, the display data generating means 1A outputs the latch timing signal 22 to drive the latch signal generating means 1E (step S
10).

The loading operation of the shift register 4 will be described with reference to FIG. When the code display instruction switch 6 on the left side of the drawing is off, the 15-bit serial display data 12 created from the read alarm data 1W has a flag set only in the eighth bit b8. The clock pulses P1 to P15 take in the 15-bit serial display data 12 to the shift register 4. When the latch signal 11 is input here, the shift register 4
The 15-bit display data 12 therein is latched by the latch circuit 3 having a 15-bit configuration.

Returning to FIG. 1, the driver 2A of the display panel 2 is connected to each bit of the latch circuit 3, and only the driver 2A corresponding to the flagged bit is driven and connected to the driver 2A. Turn on the lamp. In this case, only the lamp E32 corresponding to the flagged eighth bit is turned on. This state is shown in FIG. In FIG. 7, the upper left lamp E11 corresponds to the first bit, and then the right lamp E12 corresponds to the second bit. Therefore, the lamp E21 corresponds to the fourth bit and the lamp E32 corresponds to the eighth bit. When only the lamp E32 is turned on, only the design drawn on the template T32 is displayed so that the type of alarm can be recognized.

Next, in step S5, if the code display instructing switch 6 is turned on, it is requested to display information on the abnormality that has occurred. Here, the display data generating means 1A
Corresponds to information on an abnormality generated from the storage means 1B,
The 15-bit code data 1V is read out (step S7), and then the clock trigger signal 21 is output to trigger the clock pulse generation means 1D (step S8). The clock pulse generator 1D triggered by this sends the clock pulse 13 to the shift register 4.

Next, the display data generating means 1A drives the built-in parallel / serial converter 1G (step S
9), the read-out 15-bit code data 1V
Is converted to parallel / serial to generate 15-bit serial display data 12. The shift register 4 captures the display data 12 bit by bit for each clock pulse 13 that is input. After all the bits have been fetched, the display data generating means 1A outputs the latch timing signal 22 to drive the latch signal generating means 1E (step S10).

The loading operation of the shift register 4 will be described with reference to FIG. When the code display instruction switch 6 on the right side of the drawing is on, the 15-bit serial display data 12 created from the read code data 1V includes the fourth bit b4, the sixth bit b6, and the eighth bit b6.
Bit b8, 10th bit b10, 12th bit b12
5 flags are set. Clock pulses P1 to P
Reference numeral 15 takes in the 15-bit serial display data 12 to the shift register 4. When the latch signal 11 is input here, 15-bit display data 1 in the shift register 4
2 is latched by the latch circuit 3 having a 15-bit configuration.

Since each lamp of the display panel 2 corresponds to each bit of the latch circuit 3 in the above order, in this case, five lamps E21, E23, corresponding to the five flagged bits, E32, E41, and E43 are turned on. This state is shown in FIG. In FIG. 8, 5 lights up.
The individual lamps E21, E23, E32, E41, E43 collectively form an X character. Abnormality information can be recognized by the formed X character. That is, when one lamp is turned on, an alarm is displayed, but in the abnormal information display, a plurality of lamps are turned on at the same time to form characters or patterns that are associated in advance as a whole. In this way, a single display panel can display both the alarm display and the abnormality information display, thus saving space.

As shown in FIG. 2, the control device 1 may be provided with a storage means 1C for temporarily storing at least one of the alarm data 1W and the code data 1V corresponding to the abnormality. In the case of this configuration, the display data generating means 1A stores at least one of the alarm data 1W and the code data 1V at the same time when an abnormality occurs.
Write in C. The alarm data 1W is displayed immediately, but the code data 1V of the repaired place, the treatment method and the like is not displayed on the site but can be displayed later at a maintenance factory or the like at an arbitrary time as needed.

FIG. 9 is a block diagram showing the overall construction of another embodiment of the vehicle abnormality display device according to the present invention. The same parts as those in the embodiment of FIG. 1 are designated by the same reference numerals and the description thereof will be omitted. In the figure, a vehicle abnormality display device D1 includes a control device 41 having a function of outputting the display pattern data 14 in addition to the function of the control device 1 of the embodiment of FIG. 1, a display panel 42, an LCD 16, and LCD for driving the LCD 16
The driver 15 is provided. The display panel 42 is obtained by removing the templates T11 to T53 from the display panel 2 of the embodiment of FIG. 1, and in this embodiment, the lamps E11 to E53 of the display panel 42 function as the backlight of the LCD 16.

The control device 41 outputs the display pattern data 14 to the LCD driver 15, but when the code display instruction switch 6 is off, that is, the alarm display, the LCD is displayed.
The display pattern data 14 to be displayed on each of the 16 LCDs is output. In this case, the display pattern 14 is to arrange all the symbols corresponding to all the templates shown in FIG. Of these, one pattern with the backlight turned on will be displayed.

On the other hand, when the code display instructing switch 6 is turned on, that is, when the abnormal information is displayed, the display pattern data 14 is set so that all the symbols of the LCD 16 are not aligned in the liquid crystal and all the liquid crystal surfaces are brightened to allow light to pass therethrough. Output. When all the liquid crystal surfaces are in a light-transmitting state and a plurality of backlights are turned on at the same time, only the LCD corresponding to the turned-on backlights shines and symbols such as characters corresponding to abnormality information are displayed on the entire display panel 42. It is something to display. With this configuration,
The distinction between the alarm display and the abnormal information display becomes clearer, and misidentification can be eliminated.

[0032]

As described above, the vehicle abnormality display device according to the present invention displays an alarm by lighting one lamp, and when the display of abnormality information is selected by the code display instruction switch. The control device sends code data corresponding to the abnormality information to the display panel, and the display panel simultaneously turns on a plurality of predetermined lamps corresponding to the code data, so that the characters preliminarily associated as a whole are displayed. Or a pattern is formed to display abnormal information. As described above, according to the present invention, a single display panel can be used for both the alarm display of the abnormality occurrence in each part of the vehicle and the display of the information (for example, the abnormal portion) related to the abnormality that has occurred, thereby saving a large space. It is possible to realize a vehicle abnormality display device which is not necessary and is low in cost.

[Brief description of drawings]

FIG. 1 is an overall configuration block diagram of an embodiment of a vehicle abnormality display device according to the present invention.

FIG. 2 is a block configuration diagram of the control device of FIG.

FIG. 3 is a front view of the display panel of FIG.

FIG. 4 is a perspective view of a mounted state of the vehicle abnormality display device according to the present invention.

5 is an operation timing chart of the control device of FIG. 1. FIG.

6 is an operation flow chart of the control device of FIG. 1. FIG.

FIG. 7 is a front view of the display panel when an alarm is displayed.

FIG. 8 is a front view of the display panel when displaying a code.

FIG. 9 is an overall configuration block diagram of another embodiment of the vehicle abnormality display device according to the present invention.

FIG. 10 is a configuration block diagram of a conventional vehicle abnormality display device.

11 is an explanatory diagram of codes and waveform examples when an abnormality is detected in the vehicle abnormality display device of FIG.

[Explanation of Codes] D vehicle abnormality display device 1 control device 2 display panel 2A driver 3 latch circuit 4 shift register register 5 abnormality detection sensor 6 code display instruction switch 7 ignition switch 8 power supply 11 latch signal 12 display data 13 clock pulse E11 ~ E53 lamp T11 ~ T53 template

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Office reference number FI Technical display location G01R 31/00 G06F 3/14 360A G08B 21/00 U

Claims (5)

[Claims] 1. A control device, which receives a signal from an abnormality detection sensor that detects an abnormality in each part of a vehicle, organizes alarm data of the abnormality as display data and sends the display data to a display panel, and a display panel including a plurality of lamps. In the vehicle display device in which the display panel turns on one lamp corresponding to the alarm data, a code display instruction switch for selecting display of abnormality information is connected to the control device, and the code display instruction is provided. When selecting the abnormal information display by the switch, the control device sends the code data corresponding to the abnormal information in advance to the display panel as the display data, and the display panel simultaneously turns on a plurality of predetermined lamps corresponding to the code data. An abnormality display device for a vehicle, characterized in that, as a state, one pattern is formed and displayed on the entire display panel. 2. The abnormality display device for a vehicle comprises the display data composed of a plurality of bits, and a shift register for serially fetching the display data, and fetches the display data in the shift register based on the timing of a latch signal. A latch circuit having a plurality of bits, wherein the control device outputs a plurality of clock pulses to the shift register, and further outputs a latch signal to the latch circuit,
The shift register serially takes in the display data consisting of the plurality of bits based on the timing of the clock pulse, and the display panel turns on or off a plurality of lamps according to the contents of each bit of the latch circuit. The vehicle abnormality display device according to claim 1, wherein: 3. The control device receives storage signals for storing the alarm data and code data, a signal from the abnormality detection sensor and a signal from the code display instruction switch, and confirms the content of the abnormality, Based on the content of the abnormality and the signal from the code display instruction switch, the corresponding alarm data or code data is taken out from the storage means, output as display data via the parallel / serial converter, and further clock trigger signal and latch timing signal. Display data generating means for outputting
A clock pulse generator that is triggered based on the clock trigger signal and sends a clock pulse to the shift register; and a latch signal generator that sends a latch signal to a latch circuit based on the latch timing signal. The vehicle abnormality display device according to claim 1. 4. The control device comprises storage means for temporarily storing at least one of the alarm data and the code data corresponding to the abnormality, and the display data generating means has at least one of the alarm data and the code data. 3. The vehicle abnormality display device according to claim 2, wherein the storage means is configured to read and write. 5. An LCD having the lamp of the display panel as a backlight, and an LCD driver for driving the LCD, wherein the control device includes the L driver for the LCD driver.
2. The display pattern data to be displayed on a CD is output, and the display pattern data is such that all of the LCDs are turned on when the code display instruction switch is activated. The vehicle abnormality display device according to any one of claims 1 to 3.