JPS60231174A - Speed alarm for vehicle - Google Patents

Abstract

PURPOSE:To give alarms different from each other such as by no means disturbing crews separately each time the actual running speed exceeds the set running speed sequentially by transmitting auxiliary alarm tone output signals different from the normal alarm tone corresponding to at least two set running speeds. CONSTITUTION:A memory means 6 memorizes the results of addition of an addition means 5 with the setting of a running speed by a setting means 1. When the actual running speed exceeds the set running speed, an alarm tone output signal generation means 3 generates an alarm tone output signal to produce a specified alarm tone from an alarm tone generation means 4 while a display output signal generation means 7 generates a display output signal to display the set running speed on a display means 8. Then, when the actual running speed exceeds the memory value of the memory means 6, the alarm tone output signal generation means 3 generate an auxiliary alarm tone output signal to produce another alarm tone from the alarm tone generation means 4 while the display output signal generation means 7 generates an auxiliary display output signal to display the memory value on the display means 8.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a vehicle warning device, and more particularly, a vehicle speed warning device that issues an alarm when the actual traveling speed of the vehicle exceeds a set traveling speed. Regarding.

(Prior Art) Conventionally, in this type of vehicle speed warning device, an alarm sound continues to sound when the actual speed of the vehicle exceeds the set speed, so this is not a problem for the occupants. In addition, since the set traveling speed is only a single value, if the actual traveling speed increases beyond this value, the actual traveling speed There was a problem in that it was unclear how much the travel speed had increased from the set travel speed.

(Object of the Invention) The present invention has been made in response to the above-mentioned problems, and its purpose is to set at least two of the above-mentioned set travel speeds, and adjust these set travel speeds to actual driving conditions. To provide a speed warning device for a vehicle which gives different warnings so as not to make passengers feel bothered when the speed is exceeded one after another.

(Structure of the Invention) In achieving the above object, the structural features of the present invention are as follows:
As illustrated in FIG. 1, there is a setting means 1 which is operated when setting a set running speed of the vehicle and generates the set running speed as a setting signal, and a speed signal generator which generates the actual running speed of the vehicle as a speed signal. means 2, an alarm sound output signal generating means 6 for generating an alarm sound output signal necessary for specifying a predetermined alarm sound when the value of the speed signal exceeds the value of the setting signal; and an alarm sound generating means for generating the alarm sound in response, the adding means 5 for adding a predetermined running speed value to the value of the setting signal and generating this as an addition signal; a storage means 6 for storing the value of the addition signal; and a display output signal for generating an auxiliary display output signal necessary for defining the value of the setting signal when the value of the speed signal exceeds the value of the setting signal. The alarm sound output signal generating means is provided with a generating means 7 and a display means 8 for displaying the value of the setting signal in response to the display output signal and displaying the stored value in response to the auxiliary display output signal. 6 generates the alarm sound output signal for a first predetermined time, and when the value of the speed signal exceeds the stored value, an auxiliary alarm sound output signal necessary for specifying another alarm sound different from the alarm sound; is generated for a second predetermined time, and the alarm sound generating means 4 generates the other alarm sound in response to the auxiliary alarm sound output signal.

(Effects of the Invention) By configuring the present invention in this way, as the set traveling speed is set by the setting means 1, the storage means 6 stores the addition result of the adding means 5, and the actual traveling speed is exceeds the set traveling speed, the alarm sound output signal generation means 6 generates the alarm sound output signal, causes the alarm sound generation means 4 to generate the predetermined alarm sound, and the display output signal generation means 7 A display output signal is generated to display the set traveling speed on the display means 8, and when the actual traveling speed exceeds the stored value in the storage means B, the alarm sound output signal generating means 6 outputs the auxiliary alarm sound output signal. The warning sound generating means 4 generates the other warning sound, and the display output signal generating means 7 generates the auxiliary display output signal to display the stored value on the display means 8, so that the occupant can: Based on both the hearing of the predetermined warning sound by the warning sound generating means 4 and the visual confirmation of the set traveling speed by the display on the display means 8, the actual traveling speed of the vehicle is determined between the set traveling speed and the stored value. Based on both hearing the other alarm sound from the alarm sound generating means 4 and visually confirming the stored value by displaying the display means 8, It can be reliably recognized that the actual traveling speed exceeds the stored value. In this case, since the generation time of each alarm sound is limited to the first and second predetermined times, the occupant does not feel bothered by each alarm sound.

(Embodiment) Hereinafter, one embodiment of the present invention will be explained with reference to the drawings.
The figure shows an example of a vehicle speed warning device according to the present invention, and this speed warning device includes operation switches 10a to 10.
a, a speed sensor 2o, a waveform shaping circuit 3° connected to the speed sensor 20, and a microcomputer 40Q connected to the waveform shaping circuit 6o and each of the operation switches 1oa to 10d. Each operation switch 1oa~1od
The operation switch 10a is composed of a self-returning normally open push button switch and is attached to the steering wheel of the vehicle. 2 setting vehicle speed vB1.■8
It is closed when a setting request (or cancellation request) is made (referred to as □), and a first operation signal is generated.

The operation switch 10b is closed when the actual running speed of the vehicle (hereinafter referred to as "actual vehicle speed vs.") is requested to be displayed and generates a second operation signal, and the operation switch 10c is closed when the display of the first set vehicle speed VSI is requested. The operating switch 10d is closed to generate a fourth operating signal when the display of the second set vehicle speed ■θ2 is requested. Speed sensor 20 detects the actual vehicle speed Vs of the vehicle and generates a series of pass/I/pass signals having a frequency proportional to this detection. The waveform shaping circuit 30 sequentially shapes the waveform of each pulse signal from the speed sensor 20 and generates shaped pulses. Note that in FIG. 2, the symbol V indicates the defining voltage circuit v1. The constant voltage circuit v1 is directly supplied with power from the DC power supply B of the vehicle to generate the first constant voltage, while the constant voltage circuit v2 is connected to the ignition switch of the vehicle. When the switch SW is closed, power is supplied from the DC power supply B through the G terminal of the ignition switch SW to generate a second constant voltage.

The microcomputer 40 receives the first constant voltage from the constant voltage circuit vl and enters the operating state, and the main control program and the first and second interrupt control programs stored in advance in the microcomputer 40 are shown in FIGS. 6 and 7. Each flowchart is repeatedly executed in accordance with 1 and 2, and various arithmetic processes necessary for controlling the alarm sound generator 50 and the drive circuit 60 connected to the display 70 during the repetition of the execution will be described in the following operation explanation. Do as you please. In such a case, the interrupt timing of the first interrupt control program is defined by each time the timer provided in the microcomputer 40 reaches the maximum value (400 milliseconds), and the second interrupt control program The program interrupt timing is defined by the generation time of each shaping pulse from the waveform shaping circuit 30.

The alarm sound generator 50 is activated by receiving the second constant voltage from the constant voltage circuit V2, and is activated by the microcomputer 4.
0, and a speaker 52 connected to the alarm signal generating circuit 51. The alarm sound signal generation circuit 51 generates different alarm sounds A under the control of the microcomputer 40 as described later.

1st representing E, C, D. Second. Selectively generating a sixth and fourth alarm signal. The speaker 52 is arranged in the cabin of the vehicle and receives the first signal from the alarm signal generation circuit 51.
Second. Alarm sound A in response to the sixth or fourth alarm sound signal;
Generate B, C or D. The display device 70 is disposed in the cabin of the vehicle, and displays the actual vehicle speed of the vehicle and the first and second speeds under the control of the drive circuit 60 in cooperation with the microcomputer 40 as described later. Selectively displays the set vehicle speed v81°VB2.

In this embodiment configured as described above, when the vehicle is in a stopped state with the ignition switch SW open, the microcomputer 40 is in an operating state in which it responds to the first constant voltage from the constant voltage circuit V. Figures 3 to 5
According to the flowchart in the figure, each step 85, 85 (1° 85 CI 84 to 86, 89, 8
92, 90, 90a.

92,'93,99,101,10.3,105;10
7. The main control program is placed in a state in which calculations are performed cyclically through 109 and 109a, and the main control program starts running at step 80, its contents are initialized at step 81, and external interrupts are enabled at step 82. It is.

Further, it is assumed that the microcomputer 40 does not store each set vehicle speed.

In such a state, when the vehicle is started and accelerated by operating the ignition switch SW, the microcomputer 40 responds to the shaping pulses sequentially generated from the waveform shaping circuit 30 in cooperation with the speed sensor 20 and generates a second waveform shaping pulse. The interrupt control program is repeatedly executed according to the flowchart in FIG.
1, the count data Cv of the speed counter is added by "1" for each shaping parnu and updated as count data Cv. Furthermore, each time the timer of the microcomputer 40 reaches its maximum value, the microcomputer 40 repeatedly executes the first interrupt control program according to the flowchart of FIG. Based on the count data Cv in step 131, the actual vehicle speed of the vehicle is calculated and stored. In step 109a of the main control program, the microcomputer 40 generates the actual vehicle speed vs. in step 125 of the first interrupt control program as a current vehicle speed display signal, and in response, the drive circuit 60 outputs the current vehicle speed. The value of the display signal is generated as a drive signal, and the display 7
0 indicates the actual vehicle speed vB.

Thereafter, when it is visually confirmed that the actual vehicle speed 8 of the vehicle has reached the first set vehicle speed VsI based on the display content of the display 70 as described above, the operation switch 10a is closed and the first set vehicle speed VsI is activated. When the operation signal is generated, the microcomputer 40 selects [YE] at step 86 of the main control program.
sJ, and in step 87 the operation switch flag F in step 83C is set. = 0, the alarm sound A is determined from the alarm sound generator 50 in step 87a.
It generates the set signal necessary to generate the operation switch flag Fo, sets the operation switch flag Fo to "1," resets the count data co of the operation switch counter to zero, and sets the alarm flag F4.
is set to "1", the setting flag F8 is set to "1", and the sector signal flag F9 is set to "1".

Then, the microcomputer 40 performs step 871)
In step 87C, the actual vehicle speed ■s in step 125 is stored as the first set vehicle speed VEII, and in step 87C, the first set vehicle speed Vll11 is set to a predetermined value (for example, 10'&m/h>
* Add and store this addition result as the second set vehicle speed V82 (, each set vehicle speed v81 + "82 is multiplied by a constant (for example, 0.95), and these multiplication results are stored as the first and second set vehicle speeds, respectively. The set vehicle speed lower limit value ■ is stored as h1 and vb+, and the first set vehicle speed VB is stored in step 87d.
+ is generated as the first set vehicle speed display signal, and step 99
Based on the alarm flag F4=1 in step 8712, it is determined as [YKSJ, and in step 99a, step 8
Based on the set signal flag F9=1 in 7a, [YES
J, and in step 109, based on the setting flag F8-1 in step 87a, it is determined as [YESJ, and in step 87, based on Fo-1 in step 8712, it is determined as [YESJ, and in step 88, the count data is Based on Co=O, it is determined as NOJ.

As described above, when the set signal and the first set vehicle speed display signal are generated from the microcomputer 40, the alarm sound signal generation circuit 51 generates the first alarm sound signal in response to the cent signal from the microcomputer 40, and In response, the speaker 52 generates an alarm sound A, and the drive circuit 60 responds to the first set vehicle speed display signal from the microcomputer 40 and generates the value of this signal as a drive signal. 70 displays the first set vehicle speed v1111.

As a result, the driver can check the side set vehicle speed of the vehicle.
It is possible to reliably recognize that both +VS2 have been set by both hearing the alarm sound A from the speaker 52 and visually checking the display contents on the display 70.

Thereafter, the microcomputer 40 repeatedly executes the first interrupt control program in the same manner as described above, and executes step 12.
1, the count data Co of the operation switch counter is set to "1".
Step 126
The count data Cv of the speed counter is reset to zero. Therefore, the main control program makes a determination of "NO" in step 88 and "Y" in step 99a.
When the first operation signal is made to disappear by opening the operation switch 10a while repeating the determination with EsJ, the microcomputer 40 determines "NO" in step 86, and in step 83a, the microcomputer 40 determines "NO" in step 87a'. Based on the set signal flag F9-1, it is determined as YESJ, and in step 8b, the set signal is extinguished and the alarm flag F4 is reset to Q and the set signal flag F9-0. When the set signal disappears, the alarm sound generator 50 stops generating the alarm sound A. In this case, the alarm sound generator 5
The generation time of the alarm sound A from 0 coincides with the generation time of the set signal from the microcomputer 40, that is, the operation time of the operation switch 10a made at the driver's will, and the driver Even when hearing the alarm sound A, the user does not feel bothered.

When the calculation in step 831) of the main control program is completed as described above, the microcomputer 40 sets the operation nwitch flag F in step 83b.

= 0, determination is made as "NO" in each step 84 to 86 and 89, hysteresis flag F6 is set to ===1, determination is made as l"YKSJ in step 90, and [NOJ is determined in step 91. In step 92, it is determined that “
NOJ is determined in step 96 based on the setting flag F8-1 in step 87a, a first set vehicle speed display signal is generated in step 95a, and in response to this, the display 70 is activated. In cooperation with the circuit 60, the first
Displays the set vehicle speed V81. Then, the microcomputer 40 inputs each -"Tesog 99, 101, 103, 105.
, 107, it is determined as "NO", and in step 109, it is determined as "NO".
It is determined as YESJ, and in each step 110 to 112, it is determined as NOJ. However, the hysteresis flag F6 is provided corresponding to the second set vehicle speed V82.

Under such driving conditions of the vehicle, the actual vehicle speed vS
When the vehicle speed increases from the first set vehicle speed v81, the microcomputer 40 determines "YKSJ" in step 91 based on the actual vehicle speed vs. in step 125, and
4, the actual vehicle speed V.

In the rising process, it is determined to be 1YE3J based on the hysteresis flag F7-1 set in step 9 (1M2), and in step 94.12, the first alarm sound necessary to generate the alarm sound B from the alarm sound generator 5o is determined. It generates an output signal, sets the alarm flag F4-1, resets the count data C2 of the first alarm counter to =0, and resets the hysteresis flag F7-o.

Therefore, when the first alarm sound output signal is generated from the microcomputer 4° as described above, the alarm sound signal generation circuit 5
1 generates a second alarm sound signal, and in response to this, the speaker 52 generates an alarm sound B. As a result, the driver can determine that the actual vehicle speed v8 is the first set vehicle speed v based on the hearing of the warning sound B.
It can be correctly recognized that the value has increased beyond 81. Note that the hysteresis flag F7 is provided corresponding to the first set vehicle speed Vllll.

After the calculation in step 94.6 as described above, the microcomputer 40 performs step 94Q in step 99.
Based on the alarm flag F4=1 in step 99a, it is determined as YESJ, and in step 99a, based on the set signal flag F9=0 in step 83b, it is determined as rNOj, and in step 1
At step 00, it is determined "NO" based on the count data C2-0 in step 94a, and at step 109, it is determined "YESJ" based on the setting flag F8-1. Return to

Then, when proceeding to the main control program canutenope 94 in the same manner as in the above case, the microcomputer 40 sets the hysteresis flag F7-0 in step 9'4a.
Based on this, it is determined as “NO” and the main control program is executed in step 9.
Proceed after 9. Further, after resetting the count data C2=0 in step 94a, the microcomputer 4
0 in step 126 each time the first interrupt control program is executed.
The count data C2 is repeatedly added and updated. In this state, when the count data C2 in step 126 reaches the setting data D2 (previously stored in the microcomputer 40 as corresponding to 2 seconds), the microcomputer 40 performs the count data in step 100 (see FIG. 5). [
It is determined as YESJ, and in step 100a, the first alarm sound output signal is extinguished and the alarm flag F4-0 is reset. Then, the alarm sound signal generation circuit 51 causes the second alarm sound signal to disappear as the first alarm sound output signal from the microcomputer 40 disappears, and in response, the speaker 52 stops generating the alarm sound B. In this case, since the generation time of the warning sound B from the speaker 52 is limited to 2 seconds in relation to the setting data D2, the driver does not feel bothered by the warning sound B.

In such a state, when the actual vehicle speed vs in step 125 (see FIG. 6) increases from the second set table speed 82, the microcomputer 40 determines ``YESJ'' in each step 89.95, and in step qbr. rNOJ, and in step 97 it is determined as “NO”, and in step 9
In step 7111, the second set vehicle speed Vθ2 is generated as the second set vehicle speed display signal, and in step 98, it is determined as [YESJ] based on the hysteresis flag F6=1 in step 81, and in step 9812, the alarm sound generator 50 outputs the second set vehicle speed Vθ2. Generates the second alarm sound output signal necessary to generate the alarm sound C, sets the alarm flag F4=1, resets the count data C2 of the first alarm counter to zero, and hysteresis flag F6-0. and reset.

Then, the drive circuit 60 responds to the second set vehicle speed display signal from the microcomputer 40 and generates the value of this signal as a drive signal, and in response, the display 70 displays the second set vehicle speed "82". .Also, the alarm sound signal generation circuit 5
1 generates the third alarm sound signal in response to the second alarm sound output signal from the microcomputer 40, and the speaker 52 generates the alarm sound C in response. As a result, the driver can hear the warning sound C from the speaker 52 and the display 7.
0, it is possible to reliably and correctly recognize that the actual vehicle speed v8 has increased beyond the second set vehicle speed Vθ2. In such a case, the display 70 indicates that the actual vehicle speed Vs<second set vehicle speed v days. , the first set vehicle speed V13+
continues to be displayed, and when it becomes VB-vs2, the second set vehicle speed v82 is displayed, so V.

<First set vehicle speed v6□ according to display N70 at v82
The display serves as a preliminary warning for the actual vehicle speed ■8 to reach the second set vehicle speed vday□.

After the calculation in step 98a as described above, the microcomputer 40 determines "YESJ" in step 99 based on the alarm flag F4-1 in step 98a.
In step 9972, based on the set signal flag F9-0 in step 83b, it is determined as "NOJ, and step 1
At step 00, based on the count data C2=0 in step 982, it is determined as NOJ, and the main control program passes through each step 109 to 112 and returns to step 83.Then, the main control program proceeds to step 98 in the same manner as described above. Then, the microcomputer 40 determines that the key is NOJ based on the hysteresis flag F6-0 in step 982, and advances the main control program to step 99 and thereafter.Furthermore, after resetting the count data C2-0 in step 9812, the microcomputer 40 is the count data C at step 126 every time the first interrupt control program is executed.
2 is repeatedly added and updated. In such a state, when the count data C2 in step 125 reaches the setting data D2, the microcomputer 40 determines "YESJ" in step 100, and in step 100a, extinguishes the second alarm sound output signal and sets the alarm flag. P4 is reset to 0.Then, the alarm sound signal generation circuit 51 causes the third alarm sound signal to disappear due to the disappearance of the second alarm sound output signal from the microcomputer 40, and in response, the alarm sound signal generation circuit 51 causes the third alarm sound signal to disappear. stops the generation of alarm sound C. in this case,
Since the generation time of the alarm sound C from the speaker 52 is limited to 2 seconds in relation to the setting data D2, similar to the case of the alarm sound B, the driver may not be bothered by the alarm sound C. I don't feel it.

Thereafter, when the actual vehicle speed v6 decreases to a value between the second set vehicle speed ■θ2 and the second set vehicle speed lower limit value Vh2, the microcomputer 40 at step 95 (see FIG. 4)
“NO” and “YES” at each step 90°91
In step 94, the determination is "NO" based on the hysteresis flag F7=0 in step 9412. Then, the actual vehicle speed vs is the second set vehicle speed lower limit value vh2.
and the first set vehicle speed V81, the microcomputer 4Q determines "NO" at step 89, sets the hysteresis flag F6-1 at step 89a, and sets the hysteresis flag F6-1 at each step 90.91. It is determined as “YESJ” and “NO” is determined in step 94.

Furthermore, 1. The actual vehicle speed vs. the first set vehicle speed VB+ and the first
When the vehicle speed decreases to a value between the set vehicle speed lower limit value Vh+, the microcomputer 40 determines NOJ at step 91, determines rNOJ at each step 92 and 93, and outputs the first set vehicle speed display signal at step 93a. In response to this, the display 70 cooperates with the drive circuit 60 to display the first
Displays the set vehicle speed VSI.

As a result, the driver can determine the actual vehicle speed vs. the first set vehicle speed V.
A drop to 81 or below is visible. In such a case, the display 7
0 continues to display the second set vehicle speed VS2 when the actual vehicle speed Vs > the first set vehicle speed lower limit value Vb+, and when it becomes vs-vhl, the first set vehicle speed Vs1 is displayed, so Vs>V
Second set vehicle speed VIl on display 7o at h+! 2
The display serves as a preliminary warning for the decrease of the actual vehicle speed 8 to the first set vehicle speed VSI. Furthermore, when the actual vehicle speed (8) falls below the first set vehicle speed lower limit value Vh+, the microcomputer 40 determines "1NO" in step 90, and the hysteresis flag F7=1 in step 90a.
? ! : set, "No" is determined in each step 92 and 93, and the display 7 is set in the same manner as described above in step 93a.
0 causes the first set vehicle speed VS+ to be displayed.

If the second operation signal is temporarily generated from the operation switch 1ob during the process of increasing or decreasing the actual vehicle speed ■β as described above, the microcomputer 40 determines ``YESJ'' at step 84, and returns the signal at step 84a. generates a current vehicle speed display signal, sets the current vehicle speed display flag F1-1, resets the count data C1-0 of the current vehicle speed display counter, and sets the first and second set vehicle speed display flags F2-F.
3-0, and in step 106, it is determined as [YESJ] based on F1=1. In step 104, it is determined as "NO" based on C1=0, and in step 109, it is determined as [YESJ] based on F8-1. Fl-1 is determined in step 119.
Based on this, the current vehicle speed display signal is generated in step 110a.Then, the display 70 cooperates with the drive circuit 60 which responds to each current vehicle speed display signal from the microcomputer 40 to display the actual vehicle speed. Display vs.

Thereby, the driver can visually check the actual vehicle speed v6 from the display 70 by using the device of the present invention as a speedometer by operating the operation switch 10b as necessary. In such a case, the microcomputer 40 determines [YESJ] based on the current vehicle speed display flag F1=1 in step 84a in step 92 or 96, so that the display contents of the display 70 are changed in the process of proceeding to step 1106 of the main control program. There is no switching from the actual vehicle speed B to the first or second set vehicle speed VS] or VS2.

Further, as described above, after resetting the count data C1-0 in step 8412, the microcomputer 40
At step 122 of the first interrupt control program, each time the time value of the timer reaches the maximum value, the count data C1 is
While repeatedly adding "1" to C1 and updating it with C1,
If counting data CI>setting data D4 (previously stored in the microcomputer 40 as corresponding to 3 seconds) is satisfied, the determination in step 104 becomes YESJ. Then, the microcomputer 40 performs step 1.
At 04a, the current vehicle speed display signal is erased to stop displaying the actual vehicle speed on the display 70, and the current vehicle speed display flag F is
Reset to 1-0. Note that the display device 70 as described above
When the actual vehicle speed V8 is displayed by
Even if 0c or 10d is operated incorrectly, step 84
At a, the first and second set vehicle speed display flags F2 =
Since Fj is reset to 0, step 111
Or, in step 112, "It will not be misclassified as yEsJ.

Further, in the above-described operation, the operation switch 10c
When the third operation signal is temporarily generated, the microcomputer 40 determines "YEisJ" in step 85, generates the first set vehicle speed display signal in step 8512, and sets the first set vehicle speed display flag F2=1. , the count data C3-0 of the first set vehicle speed display counter is reset, the current vehicle speed display flag F1-〇 is reset, and the second set vehicle speed display flag F3 is reset to 0. 1 Based on the set vehicle speed display flag F2=1, it is determined as YESJ, and in step 106, it is determined as "NO" based on the count data C3 and setting data D4, and in step 111, it is determined as "YESJ" based on F2=1. Then, in step 111a, a first set military speed display signal is generated.

Then, the display 70 displays the first set vehicle speed V81 in cooperation with the drive circuit 60 that responds to each first set vehicle speed display signal from the microcomputer 40. This results in
If the driver forgets the first set vehicle speed ■III, the driver can visually confirm the first set vehicle speed display from the display 70 by operating the operation switch 10C as necessary.

If so, the microcomputer 40 performs step 96.
At step 85a, the first set vehicle speed flag F2-
1, the display content of the display 70 changes from the first set vehicle speed VS1 to the second set vehicle speed v8z in the process of proceeding to step 111a of the main control program.
It does not switch to .

Further, after the count data C3 is reset to 0 in step 85a, the microcomputer 40 repeatedly adds "1" to the count data C3 in step 122 and updates it as C3 every time the first interrupt control program is executed. , each time the main control program is executed, in step 85 it is determined "No" based on the disappearance of the sixth operation signal from the operation switch 10C, and in step 106, based on C3≦D4, l'-NO is determined.
J, and in step 111, it is determined as "YES",
In step 111a, a first set vehicle speed display signal is generated and the first set vehicle speed V81 is displayed on the display 70. When the count data C3 in step 122 of the first interrupt control program exceeds the setting data D4, the microcomputer 40 determines [YESJ] in step 106, and erases the first set vehicle speed display signal in step 10612. Then, the first set vehicle speed display on the display 70 is stopped, the first set vehicle speed display flag is reset to F2-0, and rNOJ is determined in step 111. In addition,
Even if the operation switch 101) or 10d is erroneously operated when the first set vehicle speed VB1 is displayed on the display 70 as described above, the current vehicle speed display flag F1-0 and the second set vehicle speed display flag F3 = 0 in step 85a. Therefore, it will not be erroneously determined as jYEsJ in step 110 or 112.

In addition, in the above-described operation, the operation switch 10 (
When the fourth operation signal is temporarily generated from i, the microcomputer 40 determines [YESJ in step 86, generates the second set vehicle speed display signal in step 86a, and sets the second set vehicle speed display flag F3- 1, the count data C4 of the second set vehicle speed display counter is reset to 0, the current vehicle speed display flag F, is reset to 0, and the first set vehicle speed display flag F2 is reset to 0, and the process proceeds to step 107. Based on the second set vehicle speed display flag F3 = 1, it is determined as "YES", and in step 108, it is determined as "NO" based on the count data C4 < setting data D4, and in step 112, it is determined as "NO" based on F3 = 1. YKsJ is determined, and a second set vehicle speed display signal is generated in step 112a.

Then, the display i70 displays the second set vehicle speed VII+2 in cooperation with the drive circuit 60 which responds to each second set vehicle speed display signal from the microcomputer 40. Thereby, the driver can visually confirm the second set vehicle speed 6 displayed on the display 70 by operating the operation switch 10d as necessary, such as when the driver forgets the second set vehicle speed Vθ2.

In such a case, the microcomputer 40 performs step 92.
2nd founding vehicle speed flag F3 at Ste.Tub 86a
Since it is determined that ['Y B S J based on =1, the display contents of the display 70 will not be switched from the second set vehicle speed VS2 to the first set vehicle speed VSI in the process of proceeding to step 112a of the main control program. .

Furthermore, after the count data C4 is reset to 0 in step 86a, the microcomputer 40 repeatedly adds "1" to the count data C4 and updates it as C4 in step 122 every time the first interrupt control program is executed. , each time the main control program is executed, in step 86 it is determined "NO" based on the disappearance of the fourth operation signal from the operation switch 10d, in step 108 it is determined as rNOJ based on C4≦D4, and in step 112 In step 112a, the second set vehicle speed display signal is generated and the second set vehicle speed v8□ is displayed on the display 70.
When the count data C4 in step 122 of the first interrupt control program exceeds the setting data D4, the microcomputer 40 determines "YR;SJ" in step 108, and eliminates the second set vehicle speed display signal in step 108a. Then, the second set vehicle speed display on the display 70 is stopped, and the second set vehicle speed display flag F3 is reset to 0, and "NO" is determined in step 112. Note that even if the operation switch 10b or 10c is erroneously operated when the second set vehicle speed vs2 is displayed on the display 70 as described above, the current vehicle speed display flag F is set in step 86a.
1=0 and the first set vehicle speed flag F220, so in step 110 or 111, "YES" is set.
It will not be mistakenly determined as j.

Further, after the vehicle runs under the above-mentioned action, when the first operation signal is generated by operating the operation switch 10a, the microcomputer 4Q causes [Y E S 'J' is determined, and in step 87, it is determined as ``NO'' based on the operation switch flag Fo-0 in step 8312, and in step 87111, a set signal is generated, and the operation switch flag F is determined. -1, reset the counting data of the operation switch counter to C0=O, and alarm flag F4.
= 1, and the count data of the first alarm counter C2-
0, maintain the setting flag F8-1, and set the set signal flag F9=1. Then, the alarm sound generator 50 generates the alarm sound A in response to the set signal from the microcomputer 40.

Next, the microcomputer 40 determines "YESJ" based on F4=1 in step 99, determines "YES" based on F9-1 in step 99a, and determines "YES" in step 109.
At step F8-1, JYESJ is determined based on F8-1, and the main control program passes through each step 110 to 112 and returns to step 83. Y
It is determined as ESJ, and “NO” is determined in step 88.
The main control program proceeds to step 89 and thereafter.

Therefore, after each count data Co is reset to 0 as described above, the count data co is exceeds the setting data D], the microcomputer 40 determines "YESJ" in step 88, and in step 88a, performs the reset necessary to eliminate the set signal and generate an alarm sound from the alarm sound generator 50. generate a signal, set the alarm flag F5-1, reset the count data C3 of the second alarm counter to 0,
The alarm flag F4-0 is reset, and in step 88b, the first and second set vehicle speeds vSl+VB2 and the first and second set vehicle speed lower limit values Vh++'Vh2 are erased, and the set flag FB=Q is reset. As described above, when the microcomputer 40 eliminates the C.7) signal and generates the reset signal, the alarm sound generator 50 stops generating the alarm sound A in response to the disappearance of the C.7 signal, and the microcomputer When the fourth alarm signal is generated from the alarm signal generation circuit 51 in response to the reset signal from the alarm signal generator 40, the speaker 52 generates an alarm sound.

After the calculation in step 88b, the microcomputer 40 determines "NO" in step 99 based on the alarm flag F4=0 in step 88a, and in step 101
In step 8811+, based on the alarm flag F5=1, it is determined as "YESJ", and in step 102, the count data C5 (based on the setting data D3 (previously stored in the microcomputer 40 as corresponding to 0.5 seconds) [
It is determined NO'j, and in step 109, step 881 is performed.
) is determined as "NO" based on the setting flag F8-0, and the main control program proceeds to step 109a. As described above, if the operation switch 10a is opened after confirming that the alarm sound is generated from the speaker 52, the microcomputer 40 will be able to hear the sound from the operation switch 10a when the main control program returns to step 8. 1 When the operation signal disappears, it is determined as NOJ and the next step 83
12, based on F9-1 in step 87a [YK
It is determined that it is SJ, and in step 83b it is reset to F9-0 and the main control program is advanced to step 83G and subsequent steps. Also, the count data C5-0 in step 88a
After the processing, the microcomputer 40 repeatedly adds "1" to the count data C5 in step 124 to update the count data C5 every time the first interrupt control program is executed.

During the execution of the main control program and the first interrupt control program as described above, if the count data C5 in step 124 exceeds the setting data D3, the microcomputer 40 will respond with "YES" in step 102.
J, and in step 102a, the reset signal is extinguished and the alarm flag F5-0 is reset. Then, the alarm sound signal generation circuit 51 responds to the disappearance of the reset signal from the microcomputer 40, causes the 41F alarm signal to disappear, and stops the generation of the alarm sound from the noupika 52. As can be understood from the above description, by continuing to operate the operation switch 10a for 2 seconds or more, the alarm sound generator 50 generates the alarm sound A for 2 seconds, and then generates the alarm sound for 0.5 seconds. Therefore, the driver
First and second set vehicle speeds VE1. ], VS2, and the first and second set vehicle speed lower limit values Vh+ and vh2 can be reliably recognized as being set in the microcomputer 40. In such a case, the driver operates the operation switch 1 in response to the generation of the alarm sound from the alarm sound generator 50.
Even if 0a is opened, each alarm sound A from the alarm sound generator 50
Since the sum of the times of occurrence of sounds A and D (2.5 seconds) almost matches the time of operation of the operation switch 1012 performed based on the driver's will, the driver can hear both sound signals A and D. I don't feel bothered even when I listen to it.

In addition, the first and second set vehicle speeds VIill+VB described above
.

If you want to store it as is in the microcomputer 40, you only need to do not operate the operation switch 10a, and even if you open the ignition switch Sw when the vehicle is stopped, the constant voltage circuit V1 will not connect to the DC power supply B. Since the microcomputer 4° continues to generate the first constant voltage under the cooperation of the microcomputer 4°, the microcomputer 4° adjusts the first and second set vehicle speeds VB1. Store V82 as is.

Further, in the embodiment, the microcomputer 40 controls each step 871) and 87C of the main control program in response to the generation of the first operation signal from the operation controller 1oa.
The first and second set vehicle speeds vll11+vs2 are stored substantially simultaneously at step 88b, and when the generation time of the first operation signal exceeds 2 seconds, each set vehicle speed ■E+I+V[l12 is erased at step 88b. Although an example has been described above, instead of this, the microcomputer 40 stores the first set vehicle speed VSI when the generation time of the first operation signal is 1 second, and calculates the second set vehicle speed VS2 when the generation time of the first operation signal is 2 seconds. It should be noted that the first set vehicle speed SL may be eliminated when the generation time of the first operation signal is -7% 3 seconds, and the second set vehicle speed VS2 may be eliminated when the generation time of the first operation signal is 4 seconds.

Further, in the above embodiment, each setting data D1D2 corresponds to 2 seconds, and each setting data D3 and D4 corresponds to 6 seconds and 0.5 seconds, respectively, but the present invention is not limited to this. The time corresponding to each of the data D and D4 may be changed as appropriate.

In carrying out the present invention, the main control program is partially modified as shown in FIGS. 8 to 10, and the sixth interrupt control program to be executed according to the flowchart shown in FIG. It may be stored in advance in the microcomputer and executed to perform various arithmetic processing necessary for controlling the drive circuit 60 as described below. In such a case, the interrupt timing of the sixth interrupt control program is It is defined by each time when the time values of other timers provided in 40 reach the maximum time value (assumed to be 1 second).

In this modified example, each time the clock value of the other timer of the microcomputer 40 reaches its maximum clock value, the microcomputer 40 executes the third interrupt control program in step 1 according to the flowchart of FIG.
40, the flashing flag F in step 141a is set in the previous execution of the sixth interrupt control program.
If set with +oF1, step 1
41, it is determined as YESJ, and step 141
In step b, the flashing flags p, o=Q are reset, and on the other hand, in step 141b, in the previous execution of the sixth interrupt control program.
If the blinking flag F1o has been reset to 0 in Step 141, the judgment is "NO" and the blinking flag F1°-1 is set in Step 141a. Repeat F1o=0 alternately.

Therefore, during execution of the main control program, if YESJ is determined in step 96 or 97, the microcomputer 40 executes step 112b based on F'i =F'2=F''3=Q. ' (see Fig. 10), the current vehicle speed display signal is generated, and in response, the display 70
displays the actual vehicle speed vs. in cooperation with the drive circuit 60. On the other hand, if the determination in step 93 is "1NO", the microcomputer 40 sets the blinking flag F in step 141a of the sixth interrupt control program.
0=1 (or F+o'=0 in step 141b)
Based on step 931) [YESJ (or 1NO
”), and in step 96a (or 96C) the first
Generate (or eliminate) a set vehicle speed display signal. Then,
The display '8870 is the first message from the microcomputer 40.
The display contents are made to blink in cooperation with the drive circuit 60 which responds to the generation (or disappearance) of the set vehicle speed display signal.

Further, if the determination in step 97 is "NO", the microcomputer 40 selects Fio"1 in step 141a (or F+ in step 141b).
o=0), it is determined as [YESJ (or "NO")] in step 971), and step 97i2 (or 27C
) to generate (or eliminate) a second set vehicle speed display signal. Then, the display 7Q blinks its display contents in cooperation with the drive circuit 60 which responds to the generation (or disappearance) of the second set vehicle speed display signal from the microcomputer 40.

As can be understood from the above, in this modification, the driver normally recognizes the display content on the display 70 as the actual vehicle speed Vs, and displays the same display only when the display content on the display 70 blinks. The content can be recognized as the first set vehicle speed VSI or the second set vehicle speed VE]2, and as a result, it is useful for improving the degree of use of the device of the present invention as a speedometer.

Further, in the above embodiment, when setting the second set vehicle speed VS2, the value to be added to the first set vehicle speed Vllll was set to a predetermined value (10 kmlh), but instead of this, for example, as shown in FIG. , the digital code switch 10e is connected to the microcomputer 40, and the first set vehicle speed p is set by the digital code switch 10θ.
A desired vehicle speed value to be added to 1llll is set as necessary and inputted to the microcomputer 40, and the desired vehicle speed value is set as the first set vehicle speed VS in step 87C.
It may be added to I and stored as the second set vehicle speed VIl12.

[Brief explanation of drawings]

FIG. 1 is a diagram corresponding to the configuration of the invention described in the claims, FIG. 2 is a block diagram showing an embodiment of the invention, and FIGS. 6 to 5 are executed by the microcomputer shown in FIG. 2. Flowchart showing the main control program, No. 6
The figure is a flowchart showing the first interrupt control program,
FIG. 7 is a flowchart showing the second interrupt control program, FIGS. 8 to 10 are main part flowcharts showing partial modifications of the main control program shown in FIGS. 6 to 5, and FIG. A flowchart showing a third interrupt control program to be executed by a microcomputer, and a first
FIG. 2 is a block diagram of main parts showing a partial modification of the above embodiment. Explanation of symbols 10a...Operation switch, 20...Speed sensor, 4
0...Microcomputer, 50...Alarm sound generator, 51...Alarm sound signal generation circuit, 52...Speaker, 60...Drive circuit, 70...Table device. Applicant Nippondenso Co., Ltd. Agent Patent Attorney Teru Hase - 6th J! 1 No. 71A No. 8'lA Fig. 9

Claims (1)

[Claims] a setting means that is operated when setting a set traveling speed of the vehicle and generates the set traveling speed as a setting signal; a speed signal generating means that generates the actual traveling speed of the vehicle as a speed signal; an alarm sound output signal generating means that generates an alarm sound output signal necessary for specifying a predetermined alarm sound when the value of the set signal is exceeded; and an alarm sound generator that generates the alarm sound in response to the alarm sound output signal. a speed warning device comprising: an adding means for adding a predetermined traveling speed value to the value of the setting signal and generating this as an addition signal; a storage means for storing the value of the addition signal; When the value of the signal exceeds the value of the setting signal, a display output signal necessary for defining the value of the setting signal is generated, and when the value of the speed signal exceeds the value stored in the storage means, the stored value is display output signal generating means for generating an auxiliary display output signal necessary for regulation, displaying the value of the setting signal in response to the display output signal, and displaying the stored value in response to the auxiliary display output signal; display means, wherein the alarm sound output signal generation means generates the alarm sound output signal for a first predetermined period of time, and when the value of the speed signal exceeds the stored value, the alarm sound output signal generates another sound different from the alarm sound. An auxiliary alarm sound output signal necessary for specifying the alarm sound is generated for a second predetermined time, and the alarm sound generating means generates the alarm sound of the function in response to the auxiliary alarm sound output signal. A vehicle speed warning device characterized by: