JPH0544664U - Speed alarm device - Google Patents

Abstract

(57) [Summary] [Purpose] Depending on the running condition of the vehicle, it issues an alarm warning that the running speed is above a predetermined set speed, and
It is assumed that the situation in which the driver and other occupants feel annoyance with respect to the alarm will be suppressed. A headlamp sensor (11) for detecting the operating state of left and right headlamps provided on a vehicle, a vehicle speed sensor (13) for detecting the traveling speed of the vehicle, and a state for issuing an alarm in a predetermined manner The alarm unit (16) and the headlamp sensor (11) which are supposed to be obtained detect that the left and right headlamps are in a lighting state, and the vehicle speed sensor (13) determines the traveling speed of the vehicle to a predetermined set speed. When the above is detected, the alarm unit (1
6) A control unit (1) that causes the alarm to be issued
5) and.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a speed alarm device which is disposed in a vehicle and performs an operation of warning that the traveling speed is equal to or higher than a predetermined set value according to the traveling state of the vehicle.

[0002]

[Prior Art]

 It may be said that a vehicle is equipped with a speed warning device that, when the traveling speed exceeds a preset value, makes the passenger recognize this and warns the passenger. A speed warning device for such a vehicle that has been proposed, for example, as shown in Japanese Utility Model Laid-Open No. 59-187757, generates a warning sound when the running speed of the vehicle exceeds a predetermined set speed. It is generally said that.

The purpose of providing the vehicle with the speed warning device is, of course, to the driver such that the traveling speed of the vehicle exceeds the speed limit stipulated for the road on which the vehicle travels, or the vehicle safety is high. The purpose of this is to prevent a situation in which the vehicle is running at a high speed so as to impair the running condition from being imitated. Therefore, the condition in which the speed warning device is activated is that the vehicle is running at a relatively high speed and Noise is often at a relatively high level. Therefore, if the speed warning device emits a warning sound when activated, the warning sound should be audible to the human ear with relatively high sensitivity.

[0004]

[Problems to be solved by the device]

 The traveling speed (safety speed) at which the safe traveling state of the vehicle in the traveling state is maintained varies significantly depending on the traveling environment of the vehicle. For example, even when the vehicle travels on a flat straight road or a gentle curved road, there is sufficient road lighting even during the daytime or at night when it is not necessary to operate the headlamps. Driving with no headlamps is required for driving at night and for driving at night when headlamp lighting is required, or driving in a long tunnel even during daytime. In the state, a significantly higher safe speed can be obtained.

However, in the conventional speed alarm device, the speed alarm device always operates when the traveling speed becomes equal to or higher than the preset speed regardless of the traveling environment of the vehicle. , A warning sound will be emitted, and the set speed for the running speed at that time will be, for example, less than or equal to the safe speed under the running conditions at night when headlamp illumination is required. There is. Therefore, in a vehicle equipped with a conventional speed warning device, for example, the vehicle is in a running state during the daytime when the headlamps do not need to be activated, the safe speed is reliably maintained, and the speed warning device warns. However, there is a problem in that an alarm sound is emitted by the speed alarm device, and the occupant including the driver feels annoyed although the vehicle is unnecessary.

In view of such a point, the present invention is arranged in a vehicle and issues an alarm that warns that the running speed is equal to or higher than a predetermined set speed according to the running state of the vehicle, and further, the warning is issued. On the other hand, it is an object of the present invention to provide a speed warning device that suppresses a situation in which an occupant including a driver feels troublesome.

[0007]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the speed warning device according to the present invention has a headlamp operation detecting means for detecting an operation state of a headlamp provided in a vehicle and a vehicle speed alarm device as shown in FIG. The vehicle speed detection means for detecting the traveling speed, the alarm means capable of giving an alarm in a predetermined manner, and the control means for controlling the alarm means are provided, and the control means detects the headlamp operation. When the headlamp is turned on by the means and the vehicle speed detecting means detects that the vehicle traveling speed is equal to or higher than a predetermined set speed, the alarm means is caused to give an alarm state. Composed and configured.

In addition, in one aspect of the speed warning device according to the present invention, in addition to the above-described basic configuration, whether high beam irradiation is performed or low beam irradiation is performed when the headlamp is in a lighting state. The control means detects that the headlamp operation state detecting means detects that the headlamp is in the lighting state, and the headlamp irradiation state detecting means detects the headlamp. When it is detected that the low beam irradiation of the vehicle is being performed, when the vehicle speed detection means detects that the traveling speed of the vehicle is equal to or higher than the first set speed, the alarm means is activated. In addition, the headlamp operation detecting means detects that the headlamp is in the lighting state, and detects the headlamp irradiation state. When it is detected by the emitting means that the headlamp is emitting the high beam, it is detected by the vehicle speed detecting means that the traveling speed of the vehicle is equal to or higher than the second set speed which is higher than the first set speed. When this happens, the alarm means shall be in a state of issuing an alarm.

Further, in another aspect of the speed warning device according to the present invention, in addition to the basic configuration described above, a road lighting detection means for detecting a lighting state of a road surface on which a vehicle is traveling is provided, When it is detected by the road lighting detection means that the road surface on which the vehicle is traveling is illuminated with an illuminance equal to or higher than a predetermined value, the warning means is set to stop the alarm. It

[0010]

[Action]

 In the speed warning device according to the present invention configured as described above, the vehicle is in a traveling state with the headlamps turned on, and the traveling speed is equal to or higher than a predetermined set speed. At that time, an alarm will be issued to warn that. Therefore, according to the speed warning device of the present invention, when the vehicle is in a driving environment in which the safe speed is relatively low, the driver is instructed that the running speed of the vehicle exceeds the safe speed. When the vehicle is driving during the daytime when it is not necessary to operate the headlamps, the safe speed is reliably maintained and the speed warning device is activated. Although the warning by the driver is unnecessary, the warning by the speed warning device is issued, which avoids the situation where the driver and other passengers feel annoyed.

In one aspect of the speed warning device according to the present invention, when the vehicle is in a running state with the headlamp turned on, whether low beam irradiation of headlamps is performed or high beam irradiation is performed. It is determined whether the irradiation is being performed, and when the vehicle is running under the high beam irradiation of the headlamp, an alarm is issued in the running state under the low beam irradiation of the headlamp. When the vehicle reaches a traveling speed higher than the traveling speed, an alarm will be issued, and the alarm control will be performed according to the actual situation of the one-layer traveling.

Further, in another aspect of the speed warning device according to the present invention, even when the vehicle is in a traveling state with the headlamp turned on, the vehicle is running on a road surface in which the vehicle is traveling. When the lighting is illuminated with an intensity equal to or higher than a predetermined value, the alarm is disabled so that the driver and other occupants do not feel annoyed by the unnecessary alarm.

[0013]

【Example】

 FIG. 2 shows an example of a speed warning device according to the present invention together with a headlamp control system of a vehicle to which it is applied.

In the example shown in FIG. 2, a headlamp sensor 11 for detecting a lighting state of a headlamp provided in a vehicle, a low beam irradiation for a headlamp in a lighting state, and a high beam A high / low beam state sensor 12 that determines whether or not irradiation is being performed, a vehicle speed sensor 13 that detects the traveling speed of the vehicle, and a road lighting sensor 14 that detects road illumination for the road surface on which the vehicle is traveling. It is provided.

The headlamp sensor 11, the high / low beam state sensor 12, the vehicle speed sensor 13 and the road lighting sensor 14 respectively output detection output signals SH, SB, SV and SI, and these detection output signals SH, SB and SV are output. And SI are supplied to the control unit 15. The control unit 15 includes, for example, a high beam operation switch for turning on the headlamp in the low beam irradiation state, for example, a command signal SLB from the headlamp operation switch and for turning on the headlamp in the high beam irradiation state. The command signal SHB from is also supplied.

The control unit 15 forms the headlamp control signals CLL and CLR in response to the command signal SLB and supplies them to the driving units 17 and 18, respectively, and also responds to the command signal SHB in order to generate the headlamp control signal CLL. In addition to CLR and CLR, the headlamp control signals CHL and CHR are formed, and the headlamp control signals CLL and CLR are supplied to the driving units 17 and 18, respectively, and the headlamp control signals CHL and CHR are supplied to the driving units 19 and 20. Supply each. The driving unit 17 forms the headlamp driving signal DLL based on the headlamp control signal CLL and supplies it to the left low beam lamp 21, and the driving unit 18 controls the headlamp driving signal DLL based on the headlamp control signal CLR. The drive signal DLR is formed and supplied to the right low beam lamp 22. Further, the drive unit 19 forms the headlamp drive signal DHL based on the headlamp control signal CHL and supplies it to the left high beam lamp 23, and the drive unit 20 outputs the headlamp drive signal DHL based on the headlamp control signal CHR. A lamp drive signal DHR is formed and provided to the right high beam lamp 24. The left low beam lamp 21 and the left high beam lamp 23 are turned on by being supplied with the headlamp drive signals DLL and DHL, respectively, and constitute a left headlamp by the two, and the right low beam lamp 22 and the right high beam lamp are also provided. Reference numeral 24 is turned on by being supplied with headlamp drive signals DLR and DHR, respectively, and both constitute a right headlamp.

By doing so, when the command signal SLB is supplied to the control unit 15, the headlamp drive signals DLL and DLR are supplied from the drive units 17 and 18 to the left low beam lamp 21 and the right low beam lamp 22, respectively. As a result, the left low beam lamp 21 and the right low beam lamp 22 are turned on, whereby the left head lamp and the right head lamp are turned on with the low beam irradiation state. Further, when the command signal SHB is supplied to the control unit 15, the headlamp drive signals DLL and DLR are supplied from the driving units 17 and 18 to the left low beam lamp 21 and the right low beam lamp 22, respectively, and the left low beam lamp 21 and the right low beam lamp 21 are supplied. The low beam lamp 22 is turned on, and the headlamp drive signals DHL and DHR are supplied from the driving units 19 and 20 to the left high beam lamp 23 and the right high beam lamp 24, respectively, and the left high beam lamp 23 and the right high beam lamp are supplied. 24 is turned on, so that the left head lamp and the right head lamp are turned on in the high beam irradiation state.

Further, the control unit 15 controls the detection output signal SH from the headlamp sensor 11, the detection output signal SB from the high / low beam state sensor 12, the detection output signal SV from the vehicle speed sensor 13 and the road lighting. An alarm control signal CA is formed according to the detection output signal SI from the sensor 14 and is sent to the alarm unit 16 to cause the alarm unit 16 to generate an alarm. The headlamp sensor 11 detects the lighting states of the left headlamp and the right headlamp according to the states in which the driving units 17 and 18 send the headlamp driving signals DLL and DLR, respectively, and detects the left headlamp and the right headlamp. When the lighting state of is detected, the detection output signal SH is sent out. In the high / low beam state sensor 12, the driving units 17 and 18 send headlamp driving signals DLL and DLR, respectively, and the driving units 19 and 20 do not send headlamp driving signals DHL and DHR, respectively. In response, the left head lamp and the right head lamp detect the lighting state in which the low beam irradiation is performed, and the drive units 17 and 18 send head lamp drive signals DLL and DLR, respectively, and the drive unit 19 and And 20 output headlamp drive signals DHL and DHR, respectively, and detect a lighting state in which high beam irradiation is performed for the left headlamp and the right headlamp, and a low beam for the left headlamp and the right headlamp is detected. When the lighting condition that irradiation is performed is detected, it takes a low level and the left head lamp and right Tsu is lighting state high beam irradiation is carried out for de lamp sends a detection output signal SB to take high levels when detected. Further, the vehicle speed sensor 13 outputs a detection output signal SV corresponding to the traveling speed of the vehicle, and the road lighting sensor 14 further illuminates the road surface on which the vehicle is traveling with an illuminance of a predetermined value or more. When the state is detected, the detection output signal SI is sent out.

Under such circumstances, the control unit 15 does not supply the detection output signal SH, and when it is detected that the left headlamp and the right headlamp are not in the lighting state, or based on the detection output signal SI. When it is detected that the road surface on which the vehicle is traveling is illuminated with an illuminance equal to or higher than a predetermined value, the alarm control signal CA is not sent. Further, based on the detection output signal SH, it is detected that the left head lamp and the right head lamp are in the lighting state, the detection output signal SI is not supplied, and the illumination of the road surface on which the vehicle is traveling is predetermined. When it is detected that the illuminance is not higher than the value of, the high beam irradiation is performed based on the detection output signal SB whether the left head lamp and the right head lamp are in the lighting state in which the low beam irradiation is performed. Determine if it is lit. As a result, when the left headlamp and the right headlamp are in the lighting state where the low beam irradiation is performed, when the traveling speed VV represented by the detection output signal SV is less than the first set speed VL, the alarm control signal CA When the traveling speed VV represented by the detection output signal SV is equal to or higher than the first set speed VL, the alarm control signal CA is sent. Further, when the left headlamp and the right headlamp are in a lighting state in which high beam irradiation is performed, the traveling speed V V represented by the detection output signal SV is higher than the first set speed VL and is set to the second set speed VH. When it is less than the above, the alarm control signal CA is not transmitted, and when the traveling speed VV represented by the detection output signal SV is equal to or higher than the second set speed VH, the alarm control signal CA is transmitted.

Therefore, in the example shown in FIG. 2, the control unit 15 sends the alarm control signal CA to the alarm unit 16, and the alarm unit 16 issues an alarm. The lamp and right headlamp are lit, and the road surface on which the vehicle is traveling is not illuminated with an illuminance higher than a predetermined value. In the lighting state where the low beam irradiation is performed, when the traveling speed VV of the vehicle is equal to or higher than the first set speed VL, the left head lamp and the right head lamp are also in the lighting state where the high beam irradiation is performed. And, when the traveling speed VV of the vehicle is equal to or higher than the second set speed VH which is higher than the first set speed VL. As a result, according to the example shown in FIG. 2, the left headlamp and the right headlamp of the vehicle are in a lighting state, and the road surface on which the vehicle is traveling is not illuminated with an illuminance higher than a predetermined value. Therefore, when the vehicle is in a driving environment in which the safe speed is relatively low, actions are taken to prevent the driver from being injured that the speed of the vehicle exceeds the safe speed. In addition, for example, even if the vehicle is in a running state during the daytime when it is not necessary to operate the left and right headlamps and the safe speed is reliably maintained and the warning by the speed warning device is unnecessary, A warning is issued, which prevents the driver and other occupants from feeling annoyed.

The control unit 15 that performs the control operation as described above is configured by using, for example, a microcomputer. Regarding an example of a program that the microcomputer executes to control the operation of the alarm unit 16. , With reference to the flow chart shown in FIG.

In the program shown by the flowchart of FIG. 3, after the start, in step 31, the detection output signals SH, SB, SV and SI are captured, and in the following step 32, based on the detection output signal SH, It is determined whether the left and right headlamps are in the lighting state. If the left and right headlamps are not in the lighting state, the process proceeds to step 34. In step 34, it is judged whether or not the alarm control signal CA is being sent. If the alarm control signal CA is being sent, in step 35, the sending of the alarm control signal CA is stopped, Returning to step 31, if the alarm control signal CA is not transmitted, the process directly returns to step 31.

Further, as a result of the determination in step 32, when the left and right headlamps are in the lighting state, in step 33, the illumination of the road surface on which the vehicle is traveling is equal to or more than a predetermined value based on the detection output signal SI. Judgment is made with the illuminance of (with road lighting). As a result, when the illumination of the road surface on which the vehicle is traveling is in a state where the illuminance is equal to or higher than a predetermined value, the process proceeds to step 34, steps 34 and 35 are performed as described above, and then step 31 is performed. Return.

On the other hand, if the result of determination in step 33 is that the road surface on which the vehicle is traveling is not illuminated with an illuminance greater than or equal to a predetermined value, in step 36, based on the detection output signal SB. , It is determined whether the left headlamp and the right headlamp are in a lighting state in which high beam irradiation is performed. As a result, when the left headlamp and the right headlamp are not in the lighting state in which the high beam irradiation is performed but in the lighting state in which the low beam irradiation is performed, in step 37, the traveling speed VV represented by the detection output signal SV is It is determined whether or not the speed is equal to or higher than the first set speed VL. If the traveling speed VV is lower than the first set speed VL, the process proceeds to step 34 and steps 34 and 35 are performed as described above. Returning to step 31, if the traveling speed VV is equal to or higher than the first set speed VL, the process proceeds to step 38.

In step 38, it is judged whether or not the alarm control signal CA is being sent out. If the alarm control signal CA is not sent out, in step 39 the sending of the alarm control signal CA is started. Then, the process returns to step 31, and when the alarm control signal CA is transmitted, the process directly returns to step 31.

Further, as a result of the determination in step 36, when the left head lamp and the right head lamp are in the lighting state in which high beam irradiation is performed, in step 40, the traveling speed VV represented by the detection output signal SV is If the traveling speed VV is less than the second set speed VH, it is judged whether or not the set speed VH is equal to or higher than the second set speed VH. If the traveling speed VV is equal to or higher than the second set speed VH, the process proceeds to step 38, steps 38 and 39 are performed as described above, and the process returns to step 31.

In the above example, when the left and right headlamps are not lit, the alarm control signal CA is not sent from the control unit 15 to the alarm unit 16, and the alarm unit 16 does not issue an alarm. However, in the speed alarm device according to the present invention, the alarm unit 16 may be configured to issue an alarm even when the left and right headlamps are not lit. In such a case, For example, when the traveling speed VV represented by the detection output signal SV is equal to or higher than the third set speed which is higher than the second set speed VH, the alarm control signal CA is sent from the control unit 15 to the alarm unit 16. The alarm unit 16 is set to issue an alarm.

[0028]

[Effect of the device]

 As is clear from the above description, according to the speed warning device of the present invention, when the vehicle is in a traveling environment in which its safe speed is relatively low, the warning means can notify the driver of the vehicle. The operation to prevent the situation where the traveling speed exceeds the safe speed is surely performed, and, for example, when the vehicle is in a traveling state during the daytime when the headlamps do not need to be operated, the safe speed is The alarm is issued even though the vehicle is reliably maintained and the alarm is unnecessary, thereby avoiding a situation in which the driver and other passengers feel annoyed.

Further, according to one aspect of the speed warning device of the present invention, when the vehicle is in a running state with the headlamp turned on, whether low beam irradiation of the headlamp is performed or high beam irradiation is performed. It is determined whether the irradiation is being performed, and when the vehicle is running under the high beam irradiation of the headlamp, an alarm is issued in the running state under the low beam irradiation of the headlamp. When the vehicle reaches a traveling speed higher than the traveling speed, an alarm will be issued, and the alarm control will be performed according to the actual situation of the one-layer traveling. Further, in another aspect of the speed warning device according to the present invention, even when the vehicle is in a running state with the headlamps turned on, the illumination of the road surface on which the vehicle is running is not provided. When the illuminance is equal to or higher than a predetermined value, the alarm is prevented from being issued, and the situation in which the driver and other occupants feel annoyed by the unnecessary alarm is avoided.

[Brief description of drawings]

FIG. 1 is a basic configuration diagram showing a speed warning device according to the present invention in correspondence with a utility model registration claim.

FIG. 2 is a block diagram showing an example of a speed warning device according to the present invention together with a headlamp control system in a vehicle to which the speed warning device is applied.

FIG. 3 is a flowchart showing an example of a program executed by a microcomputer when the control unit in the example shown in FIG. 1 is configured by the microcomputer.

[Explanation of symbols]

 11 Head Lamp / Sensor 12 High / Low Beam Condition Sensor 13 Vehicle Speed Sensor 14 Road Lighting Sensor 15 Control Unit 16 Alarm Unit 17, 18, 19, 20 Drive Unit 21 Left Low Beam Lamp 22 Right Low Beam Lamp 23 Left High Beam Lamp 24 Right High Beam Lamp

Claims (3)

[Scope of utility model registration request] 1. A headlamp operation detecting means for detecting an operating state of a headlamp provided in a vehicle, a vehicle speed detecting means for detecting a traveling speed of the vehicle, and a state capable of issuing an alarm in a predetermined manner. The warning means and the headlamp operation detecting means detect that the headlamp is in a lighting state, and the vehicle speed detecting means detects that the traveling speed of the vehicle is equal to or higher than a predetermined set speed. And a control unit that causes the alarm unit to take a state of issuing an alarm when the speed alarm device is activated. 2. A headlamp irradiation state detecting means for determining whether high beam irradiation is being performed or low beam irradiation is being performed when the headlamp is in a lighting state, and the control means is the headlamp operation. When the detection means detects that the headlamp is in a lighting state and the headlamp irradiation state detection means detects that the headlamp is performing low beam irradiation, the vehicle speed detection means When the traveling speed of the vehicle is detected to be equal to or higher than the first set speed, the alarm means is caused to give an alarm, and the headlamp operation detecting means may turn on the headlamp. It is detected, and the headlamp irradiation state detecting means is performing high beam irradiation of the headlamp. When it is detected, when the vehicle speed detecting means detects that the traveling speed of the vehicle is equal to or higher than a second set speed which is higher than the first set speed, the warning means gives an alarm. The speed alarm device according to claim 1, wherein the speed alarm device is set in a state. 3. A road illumination detecting means for detecting an illumination state on a road surface on which a vehicle is traveling, said control means comprising:
When the road illumination detecting means detects that the road surface on which the vehicle is traveling is illuminated with an illuminance equal to or higher than a predetermined value, the alarm means is caused to set a state in which no alarm is issued. The speed alarm device according to claim 1 or 2.