JP2007112211A - Audio controller - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an audio controller capable of preventing misalarming caused by an automatic alarming device. <P>SOLUTION: An audio ECU 50 is electrically connected with a remote start ECU 23. Furthermore, the remote start ECU 23 outputs warming operation start signals to the audio ECU 50 when first receiving signals (ID code signals for requiring warming operation start transmitted from a mobile terminal 10, which are demodulated by a receiving circuit 22, when a warming operation start switch 11 of the corresponding mobile terminal 10 is operated) are inputted from the receiving circuit 22. Then, the audio ECU 50 bans power supply to a vehicle-mounted audio equipment 60 when the warming operation start signals are inputted from the remote start ECU 23. That is to say, in this case, the vehicle-mounted audio equipment 60 is controlled to prevent sounds identical to a reference sound from being outputted from the vehicle-mounted audio equipment. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an audio control device that controls an on-vehicle audio device, and more particularly, to an audio control device that is mounted on a vehicle together with an auto alarm device that issues an alarm from an alarm device when an alarm is to be issued.

Patent Document 1 discloses a technique for mounting an auto alarm device on a vehicle to which an engine remote start system is applied.
The engine remote start system disclosed in Patent Document 1 permits the start of a vehicle-mounted engine by an engine start / stop control device when a start switch of a corresponding portable device is operated. Therefore, according to the vehicle to which such an engine remote start system is applied, the user can start the vehicle-mounted engine by remote operation from a point away from the vehicle for the purpose of so-called warm-up operation in winter.

  On the other hand, the auto alarm device disclosed in Patent Document 1 is that the vehicle should issue a warning when an angle change exceeding a predetermined threshold is detected with respect to the tilt angle detected by the tilt sensor during parking. An alarm is issued from an alarm device as being in a state. Therefore, according to a vehicle equipped with such an automatic alarm device, an alarm can be issued when the vehicle is tilted by an angle change exceeding a predetermined threshold by a third party who intends to steal the vehicle.

  Here, when an auto alarm device is mounted on a vehicle to which the engine remote start system is applied, when the on-board engine is started by operating the start switch of the corresponding portable device, it occurs during engine driving. There is a possibility that an alarm is erroneously issued from the alarm device due to the shaking of the vehicle. Therefore, Patent Document 1 discloses a technique for solving such a problem.

As another example of the auto alarm device, there has been proposed a device that issues an alarm on the assumption that an unauthorized intrusion has occurred when a sound when the in-vehicle window glass is broken is detected by an intrusion sensor.
JP 2005-112178 A

  However, when an auto alarm device using an intrusion sensor is mounted on a vehicle to which the engine remote start system is applied, there are the following problems. That is, after the engine is stopped with the audio switch turned on, when the start switch is operated during the warm-up operation, the in-vehicle audio device is activated during the warm-up operation. If it does so, when the sound similar to the sound when a vehicle-mounted window glass is destroyed sounds from a vehicle-mounted audio apparatus, there exists a possibility that a warning may be emitted accidentally from an alarm device.

  The present invention has been made paying attention to such problems, and an object thereof is to provide an audio control device capable of preventing false alarms caused by an auto alarm device.

  In order to achieve the above object, the invention according to claim 1 is directed to an auto alarm in which an alarm is issued from an alarm device when a reference sound serving as an index indicating that an alarm should be issued is detected by a sound sensor. An audio control device mounted on a vehicle together with the device, the warm-up operation transmitted from the corresponding communication terminal to request the start of the warm-up operation to drive the in-vehicle engine by remote control from a point away from the vehicle The gist of the invention is that it includes control means for controlling the in-vehicle audio device so that the sound that matches the reference sound does not sound from the in-vehicle audio device when the start request signal is acquired.

  According to this configuration, when the warm-up operation start request signal is acquired by the control means, the in-vehicle audio device is controlled by the control means so that the sound that matches the reference sound does not sound from the in-vehicle audio device. For this reason, it is avoided that a warning is accidentally issued from the alarm device due to a sound generated from the in-vehicle audio device during the warm-up operation. Accordingly, false alarms caused by the auto alarm device can be prevented.

  According to a second aspect of the present invention, in the audio control device according to the first aspect, when the warm-up operation start request signal is acquired by the control unit, the warm-up operation control means for starting the warm-up operation, and the in-vehicle audio Audio control means for controlling the device, and when the warm-up operation start request signal is acquired by the control means, the warm-up operation control means performs audio control of a warm-up operation start signal indicating that the warm-up operation is started. And when the warm-up operation start signal is input from the warm-up operation control unit, the audio control unit controls the in-vehicle audio device so that a sound matching the reference sound does not sound from the in-vehicle audio device. This is the gist.

  According to this configuration, when the warm-up operation start request signal is acquired by the control unit, the warm-up operation is started by the warm-up operation control unit. At this time, a warm-up operation start signal is output from the warm-up operation control means to the audio control means. Then, the in-vehicle audio device is controlled by the audio control means so that the sound that matches the reference sound does not sound from the in-vehicle audio device. For this reason, it is avoided that a warning is accidentally issued from the alarm device due to a sound generated from the in-vehicle audio device during the warm-up operation. Accordingly, false alarms caused by the auto alarm device can be prevented.

  According to a third aspect of the present invention, in the audio control device according to the second aspect, when the warm-up operation start signal is input from the warm-up operation control unit, the audio control unit prohibits power feeding to the in-vehicle audio device. That is the gist.

  According to this configuration, when a warm-up operation start signal is input from the warm-up operation control unit to the audio control unit, power supply to the in-vehicle audio device is prohibited by the audio control unit. That is, at this time, the in-vehicle audio device is not activated. For this reason, it is reliably avoided that an alarm is erroneously emitted from the alarm device due to a sound (in this case, it does not sound) sounded from the in-vehicle audio device during the warm-up operation. Therefore, it is possible to reliably prevent false alarms caused by the auto alarm device.

  According to a fourth aspect of the present invention, in the audio control device according to the second aspect, when the warm-up operation start signal is input from the warm-up operation control unit, the audio control unit does not make a sound from the in-vehicle audio device. The gist is to operate the in-vehicle audio apparatus in the aspect.

  According to this configuration, when a warm-up operation start signal is input from the warm-up operation control unit to the audio control unit, the audio control unit operates the in-vehicle audio device in a manner that no sound is produced from the in-vehicle audio device. That is, at this time, the in-vehicle audio device is operated silently. For this reason, it is ensured that the alarm will give a false alarm due to the sound of the in-vehicle audio device during the warm-up operation (in this case, the in-vehicle audio device is operating but the surrounding sound does not sound). Avoided. Therefore, it is possible to reliably prevent false alarms caused by the auto alarm device.

  According to a fifth aspect of the present invention, in the audio control device according to the first aspect, when the warm-up operation start request signal is acquired by the control unit, the warm-up operation control means for starting the warm-up operation, and the vehicle-mounted audio Audio control means for controlling the device, and the warm-up operation control means has the gist of prohibiting power supply to the audio control means when the warm-up operation start request signal is acquired by the control means.

  According to this configuration, when the warm-up operation start request signal is acquired by the control unit, the warm-up operation is started by the warm-up operation control unit. At this time, power supply to the audio control means is prohibited by the warm-up operation control means. As a result, the in-vehicle audio device is not activated. For this reason, it is reliably avoided that an alarm is erroneously emitted from the alarm device due to a sound (in this case, it does not sound) sounded from the in-vehicle audio device during the warm-up operation. Therefore, it is possible to reliably prevent false alarms caused by the auto alarm device.

Since this invention is comprised as mentioned above, there exist the following effects.
According to the present invention, it is possible to prevent false alarms caused by the auto alarm device.

Hereinafter, an embodiment embodying the present invention will be described.
As shown in FIG. 1, an engine remote start system 1 is applied to an automobile of the present embodiment, and an auto alarm device 2 is mounted.

  First, the engine remote start system 1 will be described. The engine remote start system 1 includes a portable device 10 and a warm-up operation control device 20. The portable device 10 is owned by the owner of the automobile. The warm-up operation control device 20 is provided on the automobile side.

  The portable device 10 has a transmission function by wireless communication. The portable device 10 includes a warm-up operation start switch 11, a warm-up operation stop switch 12, a microcomputer 13, a transmission circuit 14, and a transmission antenna 15.

  The warm-up operation start switch 11 is operated when it is desired to drive the in-vehicle engine by remote control from a point away from the vehicle (in this embodiment, a point about 10 m at the longest from the vehicle). That is, the warm-up operation start switch 11 is operated when it is desired to start the warm-up operation while staying outside the vehicle. The warm-up operation start switch 11 is a push switch having a button that can be pressed from the outside of the portable device 10. When the button is pressed, the warm-up operation start switch 11 outputs a detection signal to the microcomputer 13 that an operation serving as a trigger for starting the warm-up operation has been performed.

  The warm-up operation stop switch 12 is operated when it is desired to stop the driving of the in-vehicle engine by remote control from a point away from the vehicle (in this embodiment, a point about 10 m at the longest from the vehicle). That is, the warm-up operation stop switch 12 is operated when it is desired to stop the warm-up operation while staying outside the vehicle. The warm-up operation stop switch 12 is a push switch having a button that can be pressed from the outside of the portable device 10. When the button is pressed, the warm-up operation stop switch 12 outputs to the microcomputer 13 a detection signal indicating that an operation serving as a trigger for stopping the warm-up operation has been performed.

  The microcomputer 13 includes a nonvolatile memory 13a. In the memory 13a, an ID code (ID code of the portable device 10) set individually for each portable device 10 is stored. When the detection signal is input from the warm-up operation start switch 11, the microcomputer 13 requests the warm-up operation control device 20 to start the warm-up operation in order to request the start of the warm-up operation. A signal (warm-up start request ID code signal) including the code (warm-up start request operation code) and the ID code of the portable device 10 is generated. In this case, the microcomputer 13 outputs the warm-up operation start request ID code signal to the transmission circuit 14.

  When the warm-up operation start request ID code signal is input from the microcomputer 13, the transmission circuit 14 modulates the warm-up operation start request ID code signal into a radio wave having a predetermined frequency (300 MHz in this embodiment). The transmission antenna 15 is a medium for transmitting the warm-up operation start request ID code signal modulated by the transmission circuit 14.

  Further, when the detection signal is input from the warm-up operation stop switch 12, the microcomputer 13 requests the warm-up operation control device 20 to stop the warm-up operation in order to request the warm-up operation control device 20 to stop the warm-up operation. A signal (warm-up operation stop request ID code signal) including the operation code (warm-up operation stop request operation code) and the ID code of the portable device 10 is generated. In this case, the microcomputer 13 outputs the warm-up stop request ID code signal to the transmission circuit 14. When the warm-up stop request ID code signal is input from the microcomputer 13, the transmission circuit 14 modulates the warm-up stop request ID code signal into a radio wave having a predetermined frequency (300 MHz in this embodiment). The transmission antenna 15 also functions as a medium for transmitting the warm-up stop request ID code signal modulated by the transmission circuit 14.

  The warm-up operation control device 20 has a reception function by wireless communication. The warm-up operation control device 20 includes a receiving antenna 21, a receiving circuit 22, and a remote start electronic control unit (hereinafter referred to as a remote start ECU) 23.

  The receiving antenna 21 is a medium for receiving the warm-up start request ID code signal and the warm-up stop request ID code signal transmitted from the portable device 10. When the reception circuit 21 receives the warm-up operation start request ID code signal, the reception circuit 22 demodulates the warm-up operation start request ID code signal to generate a first reception signal. In this case, the reception circuit 22 outputs the first reception signal to the remote start ECU 23. The first received signal includes the warm-up operation start request operation code and the portable device 10 ID code.

  Further, when the reception circuit 21 receives the warm-up stop request ID code signal, the reception circuit 22 demodulates the warm-up stop request ID code signal to generate a second reception signal. In this case, the reception circuit 22 outputs the second reception signal to the remote start ECU 23. Note that the second received signal includes the warm-up stop request operation code and the portable device 10 ID code.

  The remote start ECU 23 includes a nonvolatile memory 23a. The memory 23 a stores the same ID code (reference ID code) as the ID code of the corresponding portable device 10. When the first reception signal is input from the reception circuit 22, the remote start ECU 23 recognizes that an operation serving as a trigger for starting the warm-up operation is performed using the corresponding portable device 10. In this case, the remote start ECU 23 starts the in-vehicle engine 30. That is, in this case, the remote start ECU 23 starts a warm-up operation.

  In addition, when the second reception signal is input from the reception circuit 22, the remote start ECU 23 recognizes that an operation serving as a trigger for stopping the warm-up operation is performed using the corresponding portable device 10. To do. In this case, the remote start ECU 23 stops driving the in-vehicle engine 30. That is, in this case, the remote start ECU 23 stops the warm-up operation.

  Next, the auto alarm device 2 will be described. The auto alarm device 2 includes an intrusion sensor 41, a security electronic control unit (hereinafter referred to as a security ECU) 42, and an alarm device 43.

  The intrusion sensor 41 is for detecting a sound when the vehicle-mounted window glass is broken. When the intrusion sensor 41 detects a sound when the in-vehicle window glass is broken, the intrusion sensor 41 outputs a detection signal indicating that the in-vehicle window glass is broken to the security ECU 42.

  When the detection signal indicating that the vehicle-mounted window glass is broken is input from the intrusion sensor 41, the security ECU 42 recognizes that the vehicle-mounted window glass is broken. In this case, it can be said that the automobile is placed in a state where an alarm should be issued. Therefore, in this case, the security ECU 42 outputs an alarm command signal to the alarm device 43. The alarm device 43 comprising an in-vehicle horn rings when an alarm command signal is input from the security ECU 42.

  As described above, the auto alarm device 2 warns when the intrusion sensor 41 (sound sensor) detects a sound when the vehicle-mounted window glass is broken (a reference sound serving as an index indicating that an alarm should be issued). An alarm is issued from the device 43. In other words, when the automobile is placed in a state where an alarm should be issued, the auto alarm device 2 notifies the surroundings of the automobile that the automobile is placed in a state where an alarm should be issued.

Next, features of the present embodiment will be described.
An audio electronic control unit (hereinafter referred to as audio ECU) 50 is electrically connected to the remote start ECU 23. The audio ECU 50 controls the in-vehicle audio device 60. The in-vehicle audio device 60 includes a car radio, a car stereo, a car navigation system, and the like.

  Then, when the first reception signal is input from the receiving circuit 22, the remote start ECU 23 starts the warm-up operation as already described, and the remote start ECU 23 starts the warm-up operation at this time. A warm-up operation start signal indicating that is output to the audio ECU 50. The audio ECU 50 prohibits power supply to the in-vehicle audio device 60 when a warm-up operation start signal is input from the remote start ECU 23. That is, at this time, the in-vehicle audio device 60 is not operated. In other words, in this case, the in-vehicle audio device 60 is controlled so that the sound that matches the reference sound does not sound from the in-vehicle audio device 60.

  In the present embodiment, the audio control device 3 is configured by the remote start ECU 23 and the audio ECU 50. That is, the audio control device 3 is mounted together with the auto alarm device 2 in the automobile of the present embodiment. The remote start ECU 23 and the audio ECU 50 constitute control means. The remote start ECU 23 constitutes warm-up operation control means. On the other hand, the audio ECU 50 constitutes an audio control means.

As described above, according to the present embodiment, the following operations and effects can be obtained.
(1) When the warm-up operation start request ID code signal is received by the warm-up operation control device 20, the in-vehicle audio device 60 is controlled so that the sound that matches the reference sound does not sound from the in-vehicle audio device 60. That is, when the warm-up operation start request signal (the first reception signal related to the warm-up operation start request ID code signal) is acquired by the control means (remote start ECU 23, audio ECU 50), the sound that matches the reference sound Is not controlled by the in-vehicle audio device 60, and the in-vehicle audio device 60 is controlled by the control means. For this reason, it is avoided that an alarm is accidentally issued from the alarm device 43 due to a sound generated from the in-vehicle audio device 60 during the warm-up operation. Therefore, false alarms by the auto alarm device 2 can be prevented.

  (2) When the warm-up operation start request signal (first reception signal) is acquired by the control means (remote start ECU 23, audio ECU 50), the warm-up operation is started by the remote start ECU 23. At this time, a warm-up operation start signal is output from the remote start ECU 23 to the audio ECU 50. Then, the in-vehicle audio device 60 is controlled by the audio ECU 50 so that the sound that matches the reference sound does not sound from the in-vehicle audio device 60. For this reason, it is avoided that an alarm is accidentally issued from the alarm device 43 due to a sound generated from the in-vehicle audio device 60 during the warm-up operation. Therefore, false alarms by the auto alarm device 2 can be prevented.

  (3) When a warm-up operation start signal is input from the remote start ECU 23 to the audio ECU 50, the audio ECU 50 prohibits power supply to the in-vehicle audio device 60. That is, at this time, the in-vehicle audio device 60 is not operated. For this reason, it is reliably avoided that an alarm is erroneously issued from the alarm device 43 due to a sound (in this case, it does not sound) sounded from the in-vehicle audio device 60 during the warm-up operation. Therefore, the false alarm by the auto alarm device 2 can be surely prevented.

  (4) The user is not in the vehicle during the warm-up operation based on the operation of the warm-up operation start switch 11 of the portable device 10. Therefore, it goes without saying that no inconvenience arises even if the in-vehicle audio device 60 is not operated under such circumstances.

In addition, the said embodiment can also be changed and actualized as follows.
When the warm start operation start signal is input from the remote start ECU 23 to the audio ECU 50, the audio ECU 50 controls the in-vehicle audio device 60 so that the sound that matches the reference sound does not sound from the in-vehicle audio device 60. It is not limited to the aspect in which ECU50 prohibits the electric power feeding with respect to the vehicle-mounted audio apparatus 60. FIG. That is, as shown in FIG. 2, when a warm-up operation start signal is input from the remote start ECU 23 to the audio ECU 50, the audio ECU 50 operates the in-vehicle audio device 60 in such a manner that no sound is produced from the in-vehicle audio device 60. May be adopted.

  According to this configuration, when a warm-up operation start signal is input from the remote start ECU 23 to the audio ECU 50, the audio ECU 50 operates the in-vehicle audio device 60 in a manner in which no sound is generated from the in-vehicle audio device 60. That is, at this time, the in-vehicle audio device 60 is operated without sound. For this reason, an alarm is erroneously issued from the alarm device 43 due to a sound that is sounded from the in-vehicle audio device 60 during the warm-up operation (in this case, the in-vehicle audio device 60 operates but does not sound in the surroundings). Is definitely avoided. Therefore, the false alarm by the auto alarm device 2 can be surely prevented.

  When the warm-up operation start request signal (first reception signal) is acquired by the control means (remote start ECU 23, audio ECU 50), the control means does not make a sound that matches the reference sound from the in-vehicle audio device 60 The aspect of controlling the in-vehicle audio device 60 is not limited to the aspect in which the audio ECU 50 controls the in-vehicle audio device 60. That is, as shown in FIG. 3, when the warm-up operation start request signal (first reception signal) is acquired by the control means (remote start ECU 23, audio ECU 50), the remote start ECU 23 prohibits power supply to the audio ECU 50. You may employ | adopt the structure to do.

  In other words, instead of a configuration in which the audio ECU 50 directly controls the in-vehicle audio device 60, a configuration in which the remote start ECU 23 indirectly controls the in-vehicle audio device 60 by prohibiting the power supply to the audio ECU 50. May be adopted.

  According to this configuration, when the warm-up operation start request signal (first reception signal) is acquired by the control means (remote start ECU 23, audio ECU 50), the warm-up operation is started by the remote start ECU 23. At this time, power supply to the audio ECU 50 is prohibited by the remote start ECU 23. As a result, the in-vehicle audio device 60 is not operated. For this reason, it is reliably avoided that an alarm is erroneously issued from the alarm device 43 due to a sound (in this case, it does not sound) sounded from the in-vehicle audio device 60 during the warm-up operation. Therefore, the false alarm by the auto alarm device 2 can be surely prevented.

  -Needless to say, the vehicle is mounted not only by driving the engine (warm-up operation) by operating the warm-up start switch 11 of the portable device 10 but also by starting the engine after getting on the vehicle. The engine is driven (normal operation). Here, in the configuration in which the in-vehicle audio device 60 is not operated during the warm-up operation as in the above embodiment, when the engine start operation is performed after getting on, the in-vehicle audio device 60 at the time of getting off the previous time. A configuration that reflects the operating state may be adopted.

  For example, if the vehicle-mounted engine is stopped while the vehicle-mounted audio device 60 is operated when the vehicle gets off the previous time, the vehicle-mounted audio device 60 is operated when an engine start operation is performed after the current boarding. On the other hand, if the vehicle-mounted engine is stopped when the vehicle-mounted audio device 60 is not operated at the time of the previous getting off, the vehicle-mounted audio device 60 is not operated when the engine start operation is performed after the current boarding.

  When configured in this way, in a situation where it is clear that the user is in the vehicle as in the case where the engine start operation is performed after boarding, the user does not feel uncomfortable by reproducing the previous situation when getting off the vehicle. There are benefits.

  Alternatively, in the configuration in which the in-vehicle audio device 60 is not operated during the warm-up operation as in the above embodiment, when the engine start operation is performed after getting on, the in-vehicle audio device 60 at the previous dismounting Regardless of the operating state, a configuration in which the in-vehicle audio device 60 is always operated may be employed.

  Alternatively, in the configuration in which the in-vehicle audio device 60 is not operated during the warm-up operation as in the above embodiment, when the engine start operation is performed after getting on, the in-vehicle audio device 60 at the previous dismounting Regardless of the operation state, a configuration in which the in-vehicle audio device 60 is not necessarily operated may be employed.

The block diagram which shows the structure of the motor vehicle of this embodiment by which the engine remote start system is applied, the auto alarm apparatus is mounted, and also the audio control apparatus is mounted. The block diagram which shows the structure of the motor vehicle of other embodiment by which an engine remote start system is applied, an auto alarm apparatus is mounted, and also the audio control apparatus is mounted. The block diagram which shows the structure of the motor vehicle of other embodiment by which an engine remote start system is applied, an auto alarm apparatus is mounted, and also the audio control apparatus is mounted.

Explanation of symbols

  2 ... auto alarm device, 10 ... mobile device (communication terminal), 23 ... remote start ECU (audio control device, control means, warm-up operation control means), 30 ... in-vehicle engine, 41 ... intrusion sensor (sound sensor), 43 ... alarm, 50 ... audio ECU (audio control device, control means, audio control means), 60 ... in-vehicle audio equipment.

Claims (5)

An audio control device mounted on a vehicle together with an auto alarm device that issues an alarm from an alarm device when a reference sound serving as an index indicating that the alarm should be issued is detected by the sound sensor,
When a warm-up operation start request signal transmitted from the corresponding communication terminal is requested to request the start of warm-up operation to drive the in-vehicle engine by remote control from a point away from the vehicle, a sound that matches the reference sound An audio control device comprising control means for controlling the in-vehicle audio device so that the sound does not sound from the in-vehicle audio device. The audio control device according to claim 1.
A warm-up operation control means for starting a warm-up operation when the warm-up operation start request signal is acquired by the control means;
Audio control means for controlling the in-vehicle audio equipment,
The warm-up operation control means outputs a warm-up operation start signal indicating that the warm-up operation is started to the audio control means when the warm-up operation start request signal is acquired by the control means,
The audio control means controls the in-vehicle audio device so that the sound that matches the reference sound does not sound from the in-vehicle audio device when the warm-up operation start signal is input from the warm-up operation control means. apparatus. The audio control device according to claim 2,
The audio control device according to claim 1, wherein the audio control unit prohibits power supply to the in-vehicle audio device when a warm-up operation start signal is input from the warm-up operation control unit. The audio control device according to claim 2,
The audio control device is characterized in that when the warm-up operation start signal is input from the warm-up operation control device, the audio control device operates the in-vehicle audio device in such a manner that no sound is generated from the in-vehicle audio device. The audio control device according to claim 1.
A warm-up operation control means for starting a warm-up operation when the warm-up operation start request signal is acquired by the control means;
Audio control means for controlling the in-vehicle audio equipment,
The warm-up operation control unit prohibits power supply to the audio control unit when the warm-up operation start request signal is acquired by the control unit.

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