JP2011121557A - Alarm sound device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an alarm sound device for a vehicle stably generating a small alarm sound to a pedestrian or a bicycle with a simple constitution. <P>SOLUTION: This alarm sound device for the vehicle includes a push-button switch 4, a switch circuit 2 of turning on in a period when operating the push-button switch 4 and an alarming horn 1 for generating the alarm sound by carrying an electric current in a period when the switch circuit 2 is ON, and includes the other push-button switch 5 and an ON means 3 for turning on the switch circuit 2 for a predetermined time when operating the other push-button switch 5, and is constituted so that the alarming horn 1 generates the alarm sound smaller than an alarm sound in the period when operating the push-button switch 4 when operating the other push-button switch 5. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a vehicle warning device that generates a warning sound by energizing a warning device during a period in which a pushbutton switch is operated, and a switch circuit being on. .

  The vehicle warning device is configured such that, when a pushbutton switch provided on a steering wheel (handle) is operated, the warning device is energized and generates a warning sound during the operation period.

  Japanese Patent Application Laid-Open No. 2004-133826 discloses a main horn with a sound output level set within a legal reference value range, and a pedestrian horn with a sound output level set to a range that is smaller than the main sounder and audible. And a quiet alarm device for a vehicle are disclosed. The main alarm, the pedestrian alarm, and the quiet alarm are configured to be arbitrarily switched and soundable.

Utility Model Registration No. 3094635

In the vehicle alarm device, the driver may operate the push button switch normally when the object to be warned is a vehicle. However, when the object to be warned is a pedestrian or a bicycle, the driver operates the push button switch normally. , There is a problem that there is a risk of falling and being surprised by the loud volume.
On the other hand, the driver often tries to generate a small sound from the horn by adjusting the finger and operating the push button switch very lightly, but the adjustment of the finger is not successful, There is a case where a loud sound is generated or an important sound is not generated. Therefore, Patent Document 1 proposes a vehicular alarm device that is configured to use a plurality of horns having different sound output levels and use them separately. However, this increases the number of components and increases the cost of components. There's a problem.

  The present invention has been made in view of the circumstances as described above, and provides a vehicle warning device capable of stably generating a small warning sound for a pedestrian or a bicycle with a simple configuration. The purpose is to provide.

  According to a first aspect of the present invention, there is provided a vehicle warning device, a pushbutton switch, a switch circuit that is turned on while the pushbutton switch is operated, and a warning sound that is energized while the switch circuit is on. In a vehicle warning device comprising a sounding device for generating, comprising: another pushbutton switch; and an ON means for turning on the switch circuit for a predetermined time when the other pushbutton switch is operated, When the other pushbutton switch is operated, the audible alarm is configured to generate an audible alarm smaller than the audible alarm.

  In this vehicle alarm device, the switch circuit is turned on while the pushbutton switch is operated, and the alarm device is energized to generate an alarm sound while the switch circuit is on. When the other pushbutton switch is operated, the ON means turns on the switch circuit for a predetermined time. When another pushbutton switch is operated, the audible alarm generates a audible alarm smaller than the audible alarm during the period in which the pushbutton switch is operated.

  The vehicle warning device according to the second invention is characterized in that the predetermined time is determined in a short time so that the warning device generates an insufficient warning sound.

  In this vehicle warning device, the predetermined time for turning on the switch circuit is set to a short time so as to generate an insufficient warning sound before the warning device reaches full operation.

  According to a third aspect of the present invention, there is provided the vehicle warning device further comprising means for variably adjusting the length of the predetermined time.

  In this vehicle warning device, the length of the predetermined time during which the switch circuit is turned on can be variably adjusted manually, whereby the volume of the warning device can be adjusted.

  In the vehicle warning device according to a fourth aspect of the present invention, when the other pushbutton switch is operated, the ON means turns on the switch circuit a plurality of times for a second predetermined time every first predetermined time. It is comprised by these.

  In this vehicle warning device, when another pushbutton switch is operated, the ON means performs a PWM (Pulse Width Modulation) operation to turn on the switch circuit a plurality of times for a second predetermined time every first predetermined time. Do.

  According to a fifth aspect of the vehicle alarm system, the switch circuit is a semiconductor switch circuit.

  According to the vehicle warning device according to the present invention, a vehicle warning device capable of stably generating a small warning sound for a pedestrian or a bicycle can be realized with a simple configuration. .

It is a block diagram which shows the principal part structure of embodiment of the warning device for vehicles which concerns on this invention. It is a flowchart which shows operation | movement of embodiment of the vehicle alarm device which concerns on this invention. It is a timing chart which shows operation | movement of embodiment of the vehicle alarm device which concerns on this invention. It is a block diagram which shows the principal part structure of embodiment of the warning device for vehicles which concerns on this invention.

Hereinafter, the present invention will be described with reference to the drawings illustrating embodiments thereof.
(Embodiment 1)
FIG. 1 is a block diagram showing a main configuration of the first embodiment of the vehicle warning device according to the present invention.
The vehicle alarm device includes an alarm switch (push button switch) 4 and a small volume switch (other push button switches) 5 provided on a vehicle handle (not shown). The alarm switch 4 and the small volume switch 5 have one terminal connected to the alarm control circuit 3 and the other terminal grounded.

The horn control circuit 3 is supplied with power from an in-vehicle battery (not shown) and is connected to the gate of a P-channel MOS type FET (switch circuit) 2, whichever of the horn switch 4 and the small volume switch 5 is connected. The FET 2 is controlled to be turned on / off depending on whether or not is turned on.
The FET 2 has a source connected to a power supply terminal from the in-vehicle battery, and a drain connected to one terminal of the alarm 1. The other terminal of the alarm 1 is grounded.

The sound alarm control circuit 3 includes a microcomputer, turns on the FET 2 while the sound alarm switch 4 is turned on, and the sound alarm 1 rings without interruption during that period.
The horn control circuit 3 (ON means) 3 turns on the FET 2 for a very short predetermined time (for example, several milliseconds) when the low volume switch 5 is turned on, and the horn 1 is sounded by that. Sounds small.
The sound alarm control circuit 3 is provided with an adjuster (variable adjusting means) 8 for manually adjusting the predetermined time for turning on the FET 2.

The alarm control circuit 3 turns on the FET 2 a plurality of times for the second predetermined time (several milliseconds) every first predetermined time (several milliseconds) when the low volume switch 5 is turned on ( In other words, the horn 1 may generate a small sound that does not sound completely.
Further, the horn control circuit 3 turns on the FET 2 for the second predetermined time every first predetermined time while the low volume switch 5 is turned on, and the horn 1 generates a small sound during that period. You may do it.
The sound alarm control circuit 3 gives priority to the operation according to the sound alarm switch 4 when both the sound alarm switch 4 and the small volume switch 5 are turned on.

Hereinafter, the operation of the vehicle warning device having such a configuration will be described with reference to the flowchart of FIG.
The sound alarm control circuit 3 first determines whether or not the sound alarm switch 4 is turned on (S1). If the sound alarm switch 4 is turned on, the FET 2 is turned on and the alarm sound switch 4 is turned on. The sounder is sounded (driven) (S7). Next, it is determined again whether or not the horn switch 4 is turned on (S1), and the horn 1 is sounded seamlessly while the horn switch 4 is turned on.

If the horn switch 4 is not turned on (S1), the horn control circuit 3 determines whether or not the small volume switch 5 is turned on (S3).
If the low sound volume switch 5 is turned on (S3), the sound alarm control circuit 3 turns on the FET 2 for a very short predetermined time (for example, several milliseconds) without causing the sound alarm 1 to ring completely. A small ring (drive) is made (S5). Next, it is determined again whether the alarm switch 4 is turned on (S1).
If the low sound volume switch 5 is not turned on (S3), the sound alarm control circuit 3 determines whether or not the sound alarm switch 4 is turned on (S1).

By the operation as described above, the vehicle warning device of the first embodiment rings as shown in the timing chart of FIG. That is, when the alarm switch 4 is on (b) and the alarm 1 is sounding (driven) without interruption (a), when the small volume switch 5 is operated and turned on ( c) The horn 1 rings (drives) without being affected by the operation of the small volume switch 5 (a).
When the sound switch 4 is off (b), when the small volume switch 5 is operated and turned on (c), the sound device 1 has a very short predetermined time (for example, several milliseconds), A small ring (drive) without ringing (a).

When the small volume switch 5 is operated to be turned on (c) and the alarm 1 is ringing (driving) for a very short predetermined time (for example, several milliseconds) without ringing (a) ) When the horn switch 4 is operated and turned on (b), the horn 1 continues to ring (drive) continuously (a).
When the low volume switch 5 is operated and turned on (c), the horn 1 sounds (drives) small without ringing for a very short predetermined time (a). It is also possible to drive the second predetermined time (several milliseconds) a plurality of times every predetermined time (several milliseconds) to make a small ring without ringing. Further, during the period in which the small volume switch 5 is on, the alarm 1 may be driven for a second predetermined time every first predetermined time so as to ring small without ringing.

(Embodiment 2)
FIG. 4 is a block diagram showing the main configuration of the second embodiment of the vehicle warning device according to the present invention.
This vehicle alarm device includes an alarm switch 4 and a small volume switch 5 provided on a vehicle handle (not shown). One terminal of each of the alarm switch 4 and the small volume switch 5 is connected to a power supply terminal from the in-vehicle battery.

The other terminal of the alarm switch 4 is connected to the gate of the P-channel MOS FET 2 and one terminal of the resistor 7. The other terminal of the small volume switch 5 is connected to one terminal of the signal generator 6, and the other terminal of the signal generator 6 is connected to the gate of the P-channel MOS type FET 2 and one terminal of the resistor 7. It is connected. The other terminal of the resistor 7 is grounded.
The FET 2 has a source connected to a power supply terminal from the in-vehicle battery, and a drain connected to one terminal of the alarm 1. The other terminal of the alarm 1 is grounded.

When the low volume switch 5 is turned on, the signal generator 6 outputs a signal for turning on the FET 2 for a very short predetermined time (for example, several milliseconds), so that the horn 1 does not ring completely. Sounds small.
When the horn switch 4 is turned on, the FET 2 is turned on, and the horn 1 rings without interruption during the ON period.

The signal generator 6 turns on the FET 2 a plurality of times for the second predetermined time (several milliseconds) every first predetermined time (several milliseconds) when the low volume switch 5 is turned on (that is, (A PWM drive) signal may be output, and the horn 1 may thereby generate a small sound that does not sound.
Further, the signal generator 6 outputs a signal for turning on the FET 2 for the second predetermined time every first predetermined time while the low volume switch 5 is turned on, and the alarm 1 emits a small sound during that period. May be generated.
The operation of the vehicular alarm device having such a configuration is the same as the operation shown in the timing chart of FIG.

1 Alarm 2 (P channel MOS type) FET (switch circuit)
3 Warning sound control circuit (on means)
4 Alarm switch (push button switch)
5 Low volume switch (other pushbutton switches)
6 Signal generator (ON means)
7 Resistance 8 Controller (Means to variably adjust)

Claims (5)

A vehicle warning sound comprising a pushbutton switch, a switch circuit that is turned on while the pushbutton switch is operated, and a sounding device that is energized to generate a warning sound while the switch circuit is on In the device
Another pushbutton switch and an ON means for turning on the switch circuit for a predetermined time when the other pushbutton switch is operated, and when the other pushbutton switch is operated, the warning A vehicular warning device, wherein a sounder generates a warning sound smaller than the warning sound.   2. The vehicle warning device according to claim 1, wherein the predetermined time is set to a short time so that the warning device generates an insufficient warning sound.   The vehicle warning device according to claim 1, further comprising means for variably adjusting the length of the predetermined time.   2. The vehicle according to claim 1, wherein when the other pushbutton switch is operated, the on-unit is configured to turn on the switch circuit a plurality of times for a second predetermined time every first predetermined time. Alarm device.   The vehicular alarm device according to any one of claims 1 to 4, wherein the switch circuit is a semiconductor switch circuit.

Images