JP2001188975A - Alarm device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To evade increases of cost and power consumption by decreasing the number of lamps for alarm display and to display in real time an alarm to specific alarm input whose importance is functionally high and a self- diagnostic result. SOLUTION: This device equipped with a display control circuit 16 which inhibits driving output to an LED alarm lamp 14A when LED alarm lamp 14A is driven directly with the specific alarm input whose importance is functionally high and controls driving output to the LED alarm lamp 14A corresponding to alarm input other than the above specific alarm input according to the alarm input when the LED alarm lamp 14A is not driven directly.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an alarm device which can display an alarm input having a high functional importance in real time by giving priority to other alarm inputs.

[0002]

2. Description of the Related Art FIG. 6 is a circuit diagram showing the configuration of a conventional alarm device disclosed in Japanese Patent Application Laid-Open No. 3-27636. In the figure, 1, 3,... Are individual display lamps, 2 is an abnormality judgment switch corresponding to the individual display lamp 1, 4 is an abnormality judgment switch corresponding to the individual display lamp 3, and 5 is an individual display lamp 1, 3,. Individual alarm display means having switches 2, 4,... 6 is a control unit, 7 is a unified display lamp, 8 is a control unit 6
And a unified alarm display means having a unified display lamp 7 and the like.

[0003] The individual display lamps 1, 3 ... are A / T abnormal alarm, half door alarm, washer liquid amount alarm, fuel remaining amount alarm,
A warning display corresponding to each of a head lamp disconnection alarm, a stop lamp disconnection alarm, a tail lamp disconnection alarm, a battery system abnormality alarm, and the like is performed. The abnormality determination switches 2, 4,. Is used to control the on / off of the alarm display.

Next, the operation will be described. For example, when the abnormality determination switch 2 is turned on by the “washer liquid amount alarm”, the individual display lamp 1 corresponding to the abnormality determination switch 2 is turned on. At the same time, the control unit 6 detects that one of the individual display lamps is turned on, and turns on the unified display lamp 7 in the first display state. As a result, the occupant can recognize that some abnormality has occurred by recognizing the first display state of the unified display lamp 7 projected on the inner side surface of the windshield.

Further, when the unified display lamp 7 is in the first display state and the abnormality determination switch 4 is turned on by another abnormality, for example, a "fuel remaining amount alarm", the abnormality determination switch 4 is handled. The individual display lamp 3 lights up. As a result, the control unit 6 detects that another individual display lamp has been turned on, and turns on the unified display lamp 7 in the second display state. As a result, the occupant can recognize the second display state of the unified display lamp 7 projected on the inner surface of the windshield, and can know that some other abnormality has occurred.

[0006] In this alarm device, a plurality of individual display lamps are required, which causes an increase in cost and power consumption.

On the other hand, when such an alarm device is applied to an automobile driving system, a fuel injection (hereinafter referred to as FI), a control unit for a so-called electronic fuel injection device, etc., is functional in this automobile driving system. It is necessary to perform a self-diagnosis with high importance, and a specific alarm display and a display of the self-diagnosis result for a device such as a control unit for an electronic fuel injection device with high functional importance are other There is a request to display in priority to the alarm input

An alarm device having a configuration as shown in FIG. 7 is generally considered as a means for responding to such a request. In FIG. 7, reference numeral 9 denotes an interface for inputting an alarm signal for FI, an alarm signal for the amount of oil, an alarm signal for water temperature, etc., to a display control circuit, and 10 is the display control constituted by, for example, a microcomputer. Circuit, 17 is a driver for driving the LCD, 18 is the LCD, and 19 is the FI
For example, an LED warning light drive circuit including an LED warning light for performing a warning display according to a warning signal about the temperature, a warning signal about the liquid amount of the oil, a warning signal about the water temperature, and the like.

Next, the operation of the alarm device will be described. In this alarm device, the display control circuit 10 turns on any one of the alarm signal for the FI, the alarm signal for the oil level, and the alarm signal for the water temperature sent through the interface 9. Is determined by a control program incorporated in advance, and the LED warning light of the LED warning light driving circuit 19 is driven and turned on in accordance with the determination result, and LC
An alarm is displayed on the LCD 18 via the driver 17 for driving D18. In this case, it is also possible to prioritize the display of a specific alarm signal or a self-diagnosis result for the FI with a high functional importance over other alarm signals, and drive and turn on the LED alarm lamp. Further, the self-diagnosis result can be displayed on the LCD 18.

[0010]

Since the conventional alarm device is configured as described above, the former alarm device requires a plurality of individual display lamps, which leads to an increase in cost and power consumption. Further, there is a problem that it is not possible to respond to a request for displaying an alarm signal or a self-diagnosis result with higher priority in a device that performs a self-diagnosis such as an FI control unit for an electronic fuel injection device that is highly functionally important.

In the case where a warning signal or a self-diagnosis result in a device which performs a self-diagnosis and has a high degree of importance in function, such as an FI control unit for an electronic fuel injection device, such as the latter warning device, is displayed with priority. It is necessary to determine which of the alarm signal for the FI, the alarm signal for the oil level, and the alarm signal for the water temperature is on by a control program incorporated in advance. In order to eliminate the influence of the chattering of each alarm signal that causes a problem, it is necessary to perform a chattering avoiding process using, for example, a timer when capturing each alarm signal. Delay in the display timing of the LED warning light for the high FI alarm signal Occurs, such functionally can not be displayed in real time on high importance alarm signal there is a problem that a problem.

Further, in the latter alarm device, when the self-diagnosis result of the FI control unit or the like having a high functional importance is displayed on the LCD, it is necessary to add a dedicated port to the display control circuit. There was a problem that was disadvantageous in terms of.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and avoids an increase in cost and power consumption. In addition, the present invention has a high functional importance and gives priority to other alarm inputs. It is an object of the present invention to provide an alarm device that can perform an alarm display for a specific alarm input to be displayed and a self-diagnosis result in real time.

[0014]

According to the present invention, there is provided an alarm device comprising: a single alarm display which can be driven based on a plurality of alarm signals having different alarm contents; A warning indicator direct driving means for directly driving the warning indicator by an alarm signal having a high functional importance, and a warning indicator direct driving means for directly driving the warning indicator. While prohibiting the drive output to the warning indicator, when the warning indicator direct drive means is not directly driving the warning indicator, it responds to an alarm signal other than the functionally important alarm signal. And a warning display drive control means for controlling a drive output to the warning display based on the plurality of warning signals.

The alarm device according to the present invention provides a warning indicator direct drive means by outputting an output indicating that the self-diagnosis is being performed in the functionally important device corresponding to the functionally important alarm signal. Has a configuration for directly driving a warning indicator.

An alarm device according to the present invention is a first alarm device for directly driving an alarm display by an alarm signal having a high functional importance or an output of a self-diagnosis result in a device having a high functional importance. The warning indicator direct drive means has a switching element, and the warning indicator drive control means has a second switching element connected in parallel to the first switching element, and is directly driven by the first switching element. The control of the warning indicator, which is not performed, is performed by controlling the second switching element based on a plurality of warning signals.

An alarm device according to the present invention is an LCD warning display means for displaying a warning signal by a liquid crystal display in response to a warning signal having a high functional importance and a warning signal other than the warning signal having a high functional importance. It is provided with.

In the alarm device according to the present invention, the alarm signal for the FI control unit for the electronic fuel injection device is a functionally important alarm signal.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below. Embodiment 1 FIG. FIG. 1 is a circuit diagram showing a configuration of the alarm device of the first embodiment. In the following description, an alarm device applied to a motorcycle driving system will be described. In the figure, reference numeral 11 denotes a fuel injection (hereinafter, referred to as FI) that outputs an alarm signal when an abnormality is detected, that is, an FI control unit for a so-called electronic fuel injection device. Reference numeral 12 denotes a transistor (described later) that outputs an alarm signal output from the FI control unit 11. An interface for inputting the warning indicator direct drive means, the first switching element) 14C and the display control circuit 16;
ED warning light (single warning indicator), 14B is current limiting resistor of LED warning light 14A, 14C is interface 12
A transistor for directly driving the LED warning light 14A by the output of the display control circuit 14D;
It is a transistor (second switching element, warning display drive control means) for driving the D warning light 14A.
Transistor 14C and transistor 14D are connected in parallel with each other and in series with LED warning light 14A. Reference numeral 14 denotes an LED warning light drive circuit including an LED warning light 14A, a current limiting resistor 14B, transistors 14C and 14D, and the like.

Reference numeral 15 denotes an interface for inputting an alarm signal regarding the amount of oil and an alarm signal generated based on the A / D conversion result of the signal indicating the water temperature to the display control circuit 16. This is a display control circuit configured by a CPU. Reference numeral 17 denotes a driver circuit (LCD warning display means) for driving a liquid crystal display (hereinafter, referred to as LCD), and reference numeral 18 denotes the LCD (LCD warning display means).

FIG. 2 is a plan view of the instrument panel of the motorcycle provided with the LED warning light 14A shown in FIG. 1 when the alarm device of the first embodiment is applied to a motorcycle driving system. 2, the same or corresponding parts as those in FIG. 1 are denoted by the same reference numerals, and description thereof is omitted.
In the figure, 21 is a liquid crystal display for displaying a warning about FI, oil amount, water temperature, etc., 22 is also a speed display section, 23 is a total mileage display section (odometer) to date, and 24 is a trip. The meter display unit 25 is a time display unit. 31 is a turn signal display unit, 32 is a neutral indicator, and 33 is a high beam indicator. 41 is a digital display for displaying the water temperature, 4
2 is an engine tachometer.

Next, the operation will be described. FIG. 3 summarizes the LED warning light output in the display control circuit 16 of the alarm device according to the first embodiment. The alarm signal for FI, the alarm signal for the amount of oil, and the abnormality of the water temperature are shown. The display control circuit 1
6 to the base terminal of transistor 14D
ED warning light output is shown, when ON, the state with each alarm signal or the LED warning light output, and when OFF, the state without each warning signal, or the LED warning light There is no output.

FIG. 4 is a timing chart showing each alarm signal, LCD display output, and LED alarm lamp output in the alarm device according to the first embodiment. The display control circuit is transmitted from the FI control unit 11 through the interface 12. An on / off input (FI input), which is an alarm signal for the FI, which is input to the FIB 16, an FI chatter result indicating a result of performing chattering elimination processing on the alarm signal for the FI, and the warning display for the FI Part 21
FIG. 5 is a waveform diagram of an LCD display output for warning (FI LCD) for the LCD.

Also, the graph shows the result of performing chattering elimination processing on the alarm signal for the oil amount.
An LCD display output (OIL) for the IL chatter result and a warning about the amount of the oil to the warning display unit 21
LCD), an alarm signal (TEMP A / D result) generated based on the A / D conversion result for the water temperature,
An LCD display output (TEMP LCD) for warning about the water temperature to the warning display unit 21 and a drive signal (warning LED output) output to the base terminal of the transistor 14D that drives the LED warning lamp 14A.
5 is a timing chart showing a lighting state of the LED warning light 14A.

FIG. 5 is a flowchart showing the operation of processing for displaying an alarm, such as the output of an LED warning light, by the display control circuit 16 of the alarm device according to the first embodiment. The operation will be described below with reference to this flowchart. In the following description, the alarm input to be displayed preferentially is an alarm signal for FI, and the other alarm inputs are alarm signals for the amount of oil and water temperature other than the FI.

First, in step ST1, it is determined whether an alarm signal is present. As a result, when an alarm signal is input, in the subsequent step ST2, an alarm input to be displayed preferentially, that is, an alarm signal for FI, and another alarm input, that is, an alarm signal for the fluid amount and the water temperature of the oil are both generated. Determine if it exists. Further, as a result, if both the alarm signals are present, in the next step ST3, the LED alarm lamp 14A which the display control circuit 16 performs based on the alarm signal for the FI and the alarm signal for the oil amount and the water temperature of the oil. Display output to is prohibited. In the next step ST4, FI
Are displayed on the warning display section 21 of the LCD 18 based on the warning signal about the above and the warning signal about the liquid amount and the water temperature of the oil.

Note that the LCD in step ST4
18 is displayed on the warning display unit 21 only for the time for performing the chattering elimination process, which is the result of performing the chattering elimination process on the FI-related alarm signal, as shown in “FI LCD” in the timing chart of FIG. This is performed at the same timing as the delayed “FI chatter result”.

In this case, since the LED warning light 14A is supplied with the warning signal about FI outputted from the FI control unit 11 directly to the transistor 14C via the interface 12, the LED warning light indicates that an abnormality has occurred in FI. 14A lights up and displays in real time.

On the other hand, if there is only an alarm input to be displayed preferentially, that is, only an alarm signal for FI, the process proceeds from step ST2 to step ST5 and further to step ST6. In this step ST6, a warning based on the warning signal for FI is displayed on the warning display section 21 of the LCD 18.

The LCD in step ST6
18 is displayed on the warning display unit 21 only for the time for performing the chattering elimination process, which is the result of performing the chattering elimination process on the FI-related alarm signal, as shown in “FI LCD” in the timing chart of FIG. This is performed at the same timing as the delayed “FI chatter result”.

Then, in the following step ST7, the LE performed by the display control circuit 16 based on the alarm signal for FI is performed.
The display output to the D warning light 14A is prohibited.

In this case, since the LED warning light 14A is supplied with the FI warning signal output from the FI control unit 11 directly to the transistor 14C via the interface 12, the LED warning light indicates that an abnormality has occurred in the FI. 14A lights up and displays in real time.

On the other hand, if there is only another alarm input, that is, only an alarm signal for the oil amount and the water temperature, the process proceeds from step ST2 to step ST5 and step ST5.
Proceed to 8. In step ST8, a warning based on a warning signal about the oil amount and the water temperature is issued on the LCD 18.
Is displayed on the warning display section 21. And the following step S
At T9, a display output performed by the display control circuit 16 based on a warning signal about the oil amount and the water temperature of the oil is used as an LED.
The warning light 14A is turned on. As a result, an LED warning light output in the display control circuit 16 as shown in FIG. 3 is obtained.

In this case, by changing the blinking pattern and brightness of the LED warning light 14A according to the warning about the oil amount and the water temperature, it is possible to warn about the oil amount or the water temperature. Whether it is an alarm
The content of the alarm may be identified.

The self-diagnosis is performed for a device having a high functional importance such as the FI control unit 11. If the self-diagnosis result is output in a predetermined blinking pattern, the self-diagnosis result is obtained. Is received by the transistor 14C via the interface 12, the self-diagnosis result can be displayed in real time by the LED warning light 14A.

Further, since the self-diagnosis result is not displayed on the LCD unlike the related art, it is not necessary to add an input / output port of the LCD, so that there is no disadvantage in terms of mounting space and cost.

As described above, according to the first embodiment, when a functionally important warning signal such as FI is generated, the LED warning lamp 14A can be driven in real time in response to an abnormality generated for the FI. . Further, in this case, the LED warning light 14A is
Since the drive is directly performed via the transistor 14C by the warning signal, not by the display output output to the D warning light 14A, the occurrence pattern of the FI can be faithfully displayed by the LED warning light 14A with respect to the occurrence pattern. There is an effect that an alarm device can be obtained.

In the state where a functionally important alarm signal such as FI is generated, even if another alarm signal relating to the oil level or the water temperature is generated, only the highly important alarm signal has priority. Since the warning signal is displayed on the LED warning light 14A, the warning display of the warning signal having the higher importance is prevented from being hindered or confused by the warning display by the other warning signal, and the function as a human interface is eliminated. There is an effect that an alarm device which can improve the performance can be obtained.

Further, since it is sufficient to provide one LED warning light 14A, there is an effect that an alarm device capable of reducing cost and power consumption can be obtained.

When the FI control unit 11 is performing a self-diagnosis or outputting a self-diagnosis result in a predetermined blinking pattern, for example, the transistor 14C receives this self-diagnosis state via the interface 12. Thus, the fact that the FI control unit 11 is performing a self-diagnosis can be displayed and output in real time by the LED warning light 14A, and furthermore, it is not necessary to add a port for displaying the result of the self-diagnosis, thereby reducing mounting space and cost. There is an effect that an advantageous alarm device can be obtained.

Also, not the display output from the display control circuit 16 to the LED warning light 14A, but a functionally important warning signal such as FI is output from the LED warning light 14A.
Since A is directly driven, there is an effect that an alarm device that can improve the reliability of the alarm signal can be obtained.

In addition, there is no need to use a microcomputer using high-speed logic, and there is an effect that an alarm device that can be configured at low cost can be obtained.

In the above description, the alarm input which is displayed with higher priority in function is given as the FI alarm signal. However, another alarm signal such as an engine control unit may be used. However, the present invention is not limited to such an alarm signal. Also, the alarm device when applied to a motorcycle driving system has been described, but it is also possible to apply the alarm device to a system other than a motorcycle driving system.

[0044]

As described above, according to the present invention, a single warning display which can be driven based on a plurality of alarm signals having different alarm contents, A warning indicator direct drive means for directly driving the warning indicator by an alarm signal having a high functional importance, and the warning indicator direct drive means when the warning indicator is directly driving the warning indicator. While prohibiting drive output to the warning indicator,
When the warning indicator direct drive unit does not directly drive the warning indicator, the drive output to the warning indicator in response to an alarm signal other than the functionally significant alarm signal is output to the plurality of the warning indicators. And a warning indicator drive control means for controlling based on the warning signal of the above, it is possible to use the single warning indicator as a lamp for alarm display, the number of lamps for alarm display The cost and power consumption can be reduced by reducing the number of alarms, and the alarm display for a specific alarm input that is functionally important and that you want to give priority to other alarm inputs is confused with the alarm display for other alarm inputs. There is an effect that can be performed in real time by the alarm display.

According to the present invention, the warning indicator is directly driven by the output indicating that the self-diagnosis is being performed in the functionally important apparatus corresponding to the functionally important alarm signal. With this configuration, a state in which a device with a high functional importance corresponding to a specific alarm input with a high functional importance is performing a self-diagnosis can be displayed in real time on the warning display, and furthermore, the functionally important device can be displayed. Since there is no need to add a state in which the self-diagnosis of the high-level device is being performed or another component for displaying the self-diagnosis result, an increase in cost can be suppressed.

According to the present invention, the first switching element for directly driving the warning indicator by an alarm signal having a high functional importance or an output of a self-diagnosis result in a device having a high functional importance. And controlling a second switching element connected in parallel to the first switching element and the warning indicator not directly driven by the first switching element based on a plurality of warning signals. Is provided by controlling the switching elements of the above, it is possible to use the single warning indicator as a lamp for alarm display, the cost and consumption by reducing the number of lamps for alarm display The alarm display for a specific alarm input, which can reduce power and has a high degree of importance in function and is desired to display an alarm in priority to other alarm inputs, The effect of enabling real-time by the single warning indicator without confusion and alarm display by an alarm input.

According to the present invention, a warning is displayed by a liquid crystal display in accordance with an alarm signal of high functional importance and an alarm signal other than the alarm signal of high functional importance.
Since the system is configured to include the CD warning display means, the importance of the function is high, and the warning display for the specific warning input to be displayed prior to the other warning input is displayed by the other warning input. Not only can the single warning display be performed in real time without being confused with the above, but also the warning display can be performed by the liquid crystal display individually for each of the alarm inputs.

According to the present invention, the alarm signal for the FI control unit for the electronic fuel injection device is configured to be a functionally important alarm signal. Therefore, the alarm for the alarm input for the FI control unit is provided. There is an effect that display can be performed in real time.

[Brief description of the drawings]

FIG. 1 is a circuit diagram showing a configuration of an alarm device according to Embodiment 1 of the present invention.

FIG. 2 is a plan view of a motorcycle instrument panel when the alarm device according to Embodiment 1 of the present invention is applied to a motorcycle driving system.

FIG. 3 is an explanatory diagram summarizing an LED warning light output in a display control circuit of the alarm device according to the first embodiment of the present invention.

FIG. 4 is a timing chart showing each alarm signal, LCD display output, and LED warning light output in the alarm device according to the first embodiment of the present invention.

FIG. 5 is a flowchart showing an alarm display output processing operation such as an LED alarm light output by a display control circuit of the alarm device according to the first embodiment of the present invention.

FIG. 6 is a circuit diagram showing a configuration of a conventional alarm device.

FIG. 7 is a circuit diagram showing a configuration of a conventional alarm device.

[Explanation of symbols]

11 FI control unit 14A LED warning light (single warning indicator) 14C transistor (warning indicator direct drive means, first
14D transistor (second switching element, warning display drive control means) 16 display control circuit (warning display drive control means, LCD)
Warning display means) 17 Driver circuit (LCD warning display means) 18 LCD (LCD warning display means)

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Daisuke Higashi 2-1910 Nisshincho, Omiya-shi, Saitama F-term (reference) in Kansei Corporation 5C087 AA02 AA10 AA14 AA15 AA23 AA25 DD08 DD14 EE10 EE16 FF01 FF04 FF20 GG03 GG07 GG20 GG20 GG21 GG30 GG39 GG55 GG66

Claims (5)

[Claims] 1. A single alarm indicator which can be driven based on each alarm signal having a plurality of different alarm contents, and an alarm signal having a high functional importance among the plurality of alarm signals. A warning indicator direct driving means for directly driving the warning indicator; and a means for prohibiting a drive output to the warning indicator when the warning indicator direct driving means is directly driving the warning indicator. When the warning indicator direct drive unit does not directly drive the warning indicator, the plurality of drive outputs to the warning indicator in response to an alarm signal other than the functionally significant alarm signal are output to the plurality. And a warning indicator drive control means for controlling based on the warning signal. 2. The warning indicator direct drive means directly outputs the warning indicator with an output indicating that self-diagnosis is being performed in a functionally important device corresponding to a functionally important alarm signal. The alarm device according to claim 1, wherein the alarm device is driven. 3. The warning indicator direct drive means directly drives the warning indicator by an alarm signal having a high functional importance or an output indicating that a self-diagnosis is being performed in a device having a high functional importance. And the warning indicator drive control means has a second switching element connected in parallel with the first switching element, and is not directly driven by the first switching element. 3. The alarm device according to claim 1, wherein the control of the warning indicator is performed by controlling the second switching element based on a plurality of alarm signals. 4. An LCD warning display means for displaying a warning signal by a liquid crystal display according to a warning signal having a high functional importance and a warning signal other than the warning signal having a high functional importance. The alarm device according to any one of claims 1 to 3, characterized in that: 5. The alarm signal having a high functional importance is an alarm signal for an FI control unit for an electronic fuel injection device.
The alarm device according to claim 1.