JP2012076623A - Vehicle warning system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle warning system, by which a vehicle occupant can determine an open state of a door.SOLUTION: The vehicle warning system 10 includes: a body ECU 28 that detects the open states of doors 22a to 22d based on signals of door sensor 24a to 24d, respectively, and outputs corresponding signals to a meter ECU 39; a plurality of loudspeaker 42a to 42d each provided inside a car interior 14 and emitting a sound; and the meter ECU 39 that, when the body ECU 28 detects the open state(s) of the door(s) among the doors 22a to 22d, emits alarm sound(s) showing the open state(s) of the door(s), wherein the alarm sound(s) is/are emitted from the loudspeaker 42a to 42d closest to the opened doors 22a to 22d, respectively.

Description

  The present invention relates to a vehicle warning system used in a vehicle, and more particularly to a warning system that warns that a door is open.

  Conventionally, a vehicle meter provided in front of the driver's seat has been provided with an indicator that displays the vehicle status, and when any door is in an open state that becomes a half-door without being completely closed, that fact is displayed. There was a warning system that displayed on the vessel and warned that the door was open. Accordingly, the driver can know that any of the doors is in the open state, and can improve the state of the door (see Patent Document 1).

JP 2008-74326 A

  In the case where the door is in an open state even though the door is closed, the passenger who closed the door generally closes the door again to close the door.

  However, in the warning system described above, a warning is issued to the driver that one of the doors is open, so that the driver who receives the warning is in the vicinity of the door that is open each time. The passenger seated in must be informed that the door is open and asked to close the door again.

  The present invention has been made in view of the above-described problems, and an object thereof is to provide a vehicle warning system that allows an occupant riding in a vehicle to determine an open door. is there.

  The invention according to claim 1 is provided individually at a plurality of doors provided in the vehicle, and provided individually at a plurality of door open state detecting means for detecting the open state of the door, and at a plurality of locations in the vehicle interior of the vehicle. And a plurality of sound generating means for generating a sound and a door open state detecting means for detecting the door open state when at least one door open state detecting means detects the door open state. A warning control means for warning that the open door is in an open state by generating a warning sound from a specific sound generating means provided at a position closest to the open door; It is said.

  According to the first aspect of the present invention, when at least one of the door open state detecting means detects the door open state, the warning control means is provided with a door open state detecting means for detecting the door open state. A warning sound indicating that the door is in an open state is generated from specific sound generating means provided at a position closest to the open door. As a result, a warning sound indicating that the door is in an open state is emitted from the specific sound generating means provided at a position closest to the door in the open state. According to the generation of this warning sound, an occupant riding in the vehicle can determine the door in the open state from the direction in which the warning sound is generated.

  In this way, if the occupant riding the vehicle can determine the door that is in the open state, the occupant can voluntarily reclose the door that is in the open state, so that the driver Each time, it is not necessary to notify the other passengers of the presence of the open door and to request that the door be closed again.

  The invention according to claim 2 is provided with occupant seating state detecting means for detecting the seating state of the occupant in each seat provided at a position closest to each door of the vehicle, and at least one door open state When the detection means detects the open state of the door, when the warning control means issues a warning of the open state door, the occupant seating state detection means is directed to the specific seat provided at the position closest to the open state door. When the seating of the occupant is detected, the warning control means generates a warning sound from the specific sound generating means toward the specific seat.

  According to the second aspect of the present invention, when the warning control means issues a warning for the open state door, the occupant seating state detection means is provided for the occupant to a specific seat provided at a position closest to the open state door. When seating is detected, the warning control means generates a warning sound toward the specific seat from the specific sound generating means, so that a door in the vicinity of the occupant is not attached to the occupant seated in the specific seat. You can be sure that you are in the open state.

  Here, when one of the passengers other than the driver gets off and closes the door, but the door is not completely closed and is open, the door open state detection means that the door is open However, the occupant seating state detection means does not detect that the occupant is seated in the specific seat. In such a case, even if the warning control means generates a warning sound from the specific sound generating means toward the specific seat, which door is open to the occupant including the driver remaining in the vehicle. There is a possibility that it cannot be surely transmitted.

  On the other hand, in the invention described in claim 3, when the warning control means issues a warning for the open state door, the warning control is performed if the occupant seating state detection means does not detect the seating of the occupant on the specific seat. The means does not generate a warning sound from the specific sound generating means, but generates a warning sound from the driver seat sound generating means provided at a position closest to the driver seat. By generating the warning sound from the driver's seat sound generating means in this way, even if no occupant is seated in the specific seat, if the driver is seated in the driver's seat, the presence of the open door is at least driven. Can tell.

  In the third aspect of the invention, the driver seat sound generating means may be any sound generating means provided at a position closest to the driver seat as described above. For example, an audio device including a plurality of speakers is mounted on a vehicle. The speaker of this audio apparatus is generally installed in the vicinity of each seat, and is installed without exception in the vicinity of the driver's seat. The vehicle is also provided with an instrument with a built-in speaker in front of the driver's seat. The speaker of this instrument is a speaker that mainly gives a warning to the driver based on the sound of the vehicle state. In the invention described in claim 3, the driver's seat sound generating means may be, for example, a speaker included in the audio device or a speaker built in the instrument.

  Further, as in the fourth aspect of the invention, when the warning control means issues a warning of the open door, the warning control means is opened if the occupant seating state detection means does not detect the seating of the occupant on the specific seat. When detecting the seating of an occupant in a specific seat located closest to the status door, a warning sound having a louder volume than that generated by the specific sound generating means is generated from the specific sound generating means. May be. According to such a loud warning, even if no occupant is seated in the specific seat, the occupant seated in a seat other than the specific seat provided in the position closest to the open door, Can tell the presence of an open door.

  According to a fifth aspect of the present invention, the vehicle is provided with display means for displaying the state of the vehicle in front of the driver's seat, and at least one door open state detection means detects the door open state. When the occupant seating state detection unit does not detect the seating of the occupant on the specific seat when the warning control unit performs the warning of the open state door, the warning control unit displays the presence of the open state door on the display unit. It is characterized by that.

  As in the fifth aspect of the present invention, when the warning control means issues a warning for the opened door, the occupant seated state detecting means detects the seating of the occupant on the specific seat provided at the position closest to the opened door. If not, the warning control means displays the presence of the open door on the display means. This display means is provided in front of the driver's seat. According to these matters, the warning control means displays the presence of the open door on the display means, so that the driver visually recognizes this display. Thus, according to the display of the presence of the open door being performed by the display means, the presence of the open door can be communicated to at least the driver.

It is a schematic block diagram for demonstrating arrangement | positioning of the component of the warning system for vehicles by one Embodiment of this invention. It is a block diagram of the warning system for vehicles by one embodiment of the present invention. It is a flowchart which shows the control content of the warning system for vehicles by one Embodiment of this invention. It is a flowchart which shows the control content of the warning system for vehicles by one Embodiment of this invention.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

(One embodiment)
FIG. 1 is a schematic configuration diagram for explaining the arrangement of components of a warning system of the present invention on a vehicle. FIG. 2 is a block diagram of the warning system. The warning system 10 warns occupants including drivers who are in the passenger compartment 14 when the plurality of doors 22a to 22d provided in the vehicle 12 are open, for example, the half doors of the doors 22a to 22d. System. Hereinafter, the configuration of the warning system 10 of the present embodiment will be described with reference to FIGS. 1 and 2.

  Before describing the configuration of the warning system 10, the positional relationship between the doors 22a to 22d and the seats 20a to 20d will be described. In this embodiment, four doors 22a to 22d are provided in the vehicle. As shown in FIG. 1, two doors 22a to 22d are provided on the right side of the vehicle 12 and two on the left side of the vehicle. Of the two doors 22 a and 22 c provided on the right side of the vehicle 12, the right front door 22 a is provided in front of the vehicle 12, and the right rear door 22 c is provided in the rear of the vehicle 12. Of the two doors 22b and 22d provided on the left side of the vehicle 12, the left front door 22b is provided in front of the vehicle 12, and the left rear door 22d is provided in the rear of the vehicle 12.

  In the following description, the right front door 22a is called the driver's seat door 22a, the left front door 22b is called the passenger seat door 22b, the right rear door 22c is called the right rear seat door 22c, The door 22d may be referred to as the left rear seat door 22d.

  The vehicle 12 of the present embodiment is configured to include a steering wheel 18 on the right front side. In the passenger compartment 14 of the vehicle 12, a driver's seat 20a is provided on the right front side, and a passenger seat 20b is provided on the left side of the driver's seat 20a. Further, a right rear seat 20c is provided behind the driver seat 20a, and a left rear seat 20d is provided on the left side of the right rear seat 20c.

  Each seat 20a-d is provided with doors 22a-d, respectively. The driver gets on the vehicle 12 through the driver's seat door 22a and sits on the driver's seat 20a. An occupant who wants to sit on the passenger seat 20b gets on the vehicle 12 through the passenger seat door 22b and sits on the passenger seat 20b. An occupant who wants to sit on the right rear seat 20c gets on the vehicle 12 through the right rear seat door 22c and sits on the right rear seat 20c. An occupant who wants to sit on the left rear seat 20d gets on the vehicle 12 through the left rear seat door 22d and sits on the left rear seat 20d.

(Warning system configuration)
The warning system 10 includes a combination meter 30, an audio device 40, a body ECU 28, a skid control ECU 52, and the like.

  The combination meter 30 displays the state of the vehicle 12, and is installed on the driver's seat 20a side of the instrument panel 16 provided in front of the vehicle 12. The combination meter 30 displays a speedometer 36 that displays the traveling speed of the vehicle 12, a tachometer 38 that displays the rotational speed of an engine mounted on the vehicle 12, open states (including half-doors) of the doors 22a to 22d, and the like. A display speaker 32 and a meter speaker 34 that emits a buzzer sound when the doors 22a to 22d are opened are provided. In the present embodiment, the display device 32 is composed of, for example, a liquid crystal display device. The display 32 displays an image simulating the vehicle 12 and images of the open doors of the doors 22a to 22d in the open state in the vehicle image. In addition, the display device 32 may be an indicator that emits light when any of the doors 22a to 22d is in an open state, instead of the liquid crystal display device.

  The combination meter 30 also includes a meter ECU 39 that controls the speedometer 36, tachometer 38, display 32, and meter speaker 34. ECU is an abbreviation for Electronic Control Unit. The meter ECU 39 is mainly composed of a microcomputer, for example, and is connected to a CAN (Controller Area Network) 60 as shown in FIG. The CAN 60 is an in-vehicle network system that realizes transmission of vehicle information between various devices mounted on the vehicle 12 according to a predetermined protocol. The CAN 60 is connected to an audio ECU 44, a body ECU 28, a skid control ECU 52, and the like which will be described later.

  The meter ECU 39 has an open state signal indicating the open state of each of the doors 22a to 22d from the body ECU 28 through the CAN 60, and a seating state indicating that an occupant is seated in each of the passenger seat 20b, the right rear seat 20c, and the left rear seat 20d. A signal is input, and a vehicle speed signal indicating the traveling speed of the vehicle 12 is input from the skid control ECU 52 through the CAN 60. A rotational speed signal indicating the rotational speed of the engine is input to the meter ECU 39 through an CAN 60 from an engine control ECU (not shown).

  The meter ECU 39 controls the speedometer 36, the tachometer 38, the display 32, and the meter speaker 34 based on the open state signals, seating signals, vehicle speed signals, and engine speed signals of the doors 22a to 22d. As a result, the speedometer 36 displays the speed corresponding to the input vehicle speed signal, the tachometer 38 displays the rotational speed corresponding to the engine rotational speed signal, and the display 32 displays the doors 22a to 22a. An image indicating the open state of d is displayed, and a buzzer sound indicating the open state of the doors 22a to 22d is emitted from the meter speaker 34.

  The audio device 40 is a device that outputs music stored in a radio broadcast, a CD (compact disc) or the like via speakers 42a to 42d. The audio device 40 is provided between the driver seat 20a and the passenger seat 20b in the instrument panel 16. The audio device 40 can output music stored in a built-in HDD (hard disk drive) and sound data of a television broadcast received by a built-in TV tuner via speakers 42a to 42d.

  Among the speakers 42a to 42d, the right front speaker 42a is provided on the driver's seat door 22a, the left front speaker 42b is provided on the passenger seat door 22b, the right rear speaker 42c is further rearward of the right rear seat 20c, and the right rear seat. The left rear speaker 42d is provided in the vicinity of the door 22c, and is further rearward of the left rear seat 20d and in the vicinity of the left rear seat door 22d. The right rear speaker 42c and the left rear speaker 42d may be provided on the right rear door 22c and the left rear door 22d, respectively. In the following description, the right front speaker 42a is referred to as a driver's seat speaker 42a, the left front speaker 42b is referred to as a passenger seat speaker 42b, the right rear speaker 42c is referred to as a right rear seat speaker 42c, The speaker 42d may be referred to as the left rear seat speaker 42d.

  The audio device 40 includes an audio ECU 44 that controls a radio tuner, a CD data reading unit, and the like, and controls the speakers 42a to 42d so as to generate sound data acquired by the tuner and the data reading unit. . The audio ECU 44 is mainly composed of a microcomputer, for example, and is connected to a CAN 60 as shown in FIG. The audio ECU 44 not only outputs the sound data received by the radio tuner or the sound data acquired by the CD data reading unit from the speakers 42a to 42d, but also warns that one of the doors 22a to 22d is open. The speakers 42a to 42d are controlled so as to generate a warning sound.

  The body ECU 28 is mainly composed of a microcomputer, and is connected to a CAN 60. The body ECU 28 is connected to door sensors 24a to 24d that detect open / closed states of the doors 22a to 22d. The right front door sensor 24a is provided on the driver's seat door 22a, the left front door sensor 24b is provided on the passenger seat door 22b, the right rear door sensor 24c is provided on the right rear seat door 22c, and the left rear door sensor 24d is provided on the left rear seat door 22d. It has been. Each door sensor 24a-d is configured to generate an electrical signal when the electrodes in the sensor come into contact with each other when the door is open.

  The body ECU 28 determines which door 22a-d the electrical signal from the input door sensor 24a-d is, and outputs an open state signal corresponding to the determination result to the CAN 60. Specifically, when the body ECU 28 determines that the input electrical signal is from the right front door sensor 24a, the body ECU 28 outputs a right front door open state signal, and the input electrical signal is from the left front door sensor 24b. If it is determined that the left front door open state signal is output, if it is determined that the input electrical signal is from the right rear door 22c, the right rear door open state signal is output and the input electrical signal is left rear If it is determined that it is from the door 22d, a left rear door open state signal is output.

  When any one of the right front door open state signal, the left front door open state signal, the right rear door open state signal, or the left rear door open state signal is input from the body ECU 28 to the meter ECU 39, the meter ECU 39 is input. It is determined that the doors 22a to 22d corresponding to the signals are open. For example, when the right front door open state signal is input, the meter ECU 39 determines that the driver's seat door 22a is open. When the left front door open state signal is input, the meter ECU 39 determines that the passenger seat door 22b is open. When the right rear door open state signal is input, the meter ECU 39 determines that the right rear door 22c is open. When the left rear door open state signal is input, the meter ECU 39 determines that the left rear door 22d is open.

  The body ECU 28 includes a passenger seat seating sensor 26b for detecting whether or not an occupant is seated in the passenger seat 20b, the right rear seat 20c, and the left rear seat 20d, a right rear seat seating sensor 26c, and a left rear seat seating sensor. 26d is connected. Each of the seating sensors 26b to 26d is provided inside the seat cushions of the passenger seat 20b, the right rear seat 20c, and the left rear seat 20d, at a position where a passenger is seated and a load acts. Each of the seating sensors 26b to 26d is configured to generate an electrical signal when the occupant is seated and a load is applied, so that the electrodes in the sensor come into contact with each other.

  The body ECU 28 determines which seat 20b-d the electrical signal from the seating sensors 26b-d is input, and outputs a seating signal corresponding to the determination result to the CAN 60. Specifically, when the body ECU 28 determines that the input electrical signal is from the front passenger seating sensor 26b, the body ECU 28 outputs a front passenger seating signal, and the input electrical signal is output from the right rear seating sensor 26c. If it is determined that the received signal is from the left rear seat seating sensor 26d, the left rear seat seating signal is output.

  When one of the passenger seat seating signal, the right rear seat seating signal, or the left rear seat seating signal is input from the body ECU 28 to the meter ECU 39, the meter ECU 39 applies to the seats 20b to 20d corresponding to the input signal. It is determined that a passenger is seated. For example, when a passenger seating signal is input, the meter ECU 39 determines that an occupant is seated in the passenger seat 20b. When the right rear seat seating signal is input, the meter ECU 39 determines that an occupant is seated in the right rear seat 20c. When the left rear seat seating signal is input, the meter ECU 39 determines that an occupant is seated in the left rear seat 20d.

  The skid control ECU 52 controls the brake hydraulic pressure of each wheel by driving and controlling a brake actuator (not shown) in order to ensure excellent vehicle stability during deceleration, acceleration and turning. The skid control ECU 52 is mainly composed of a microcomputer, and is connected to a CAN 60. The skid control ECU 52 is connected to a wheel speed sensor 50 that generates a pulse signal in accordance with the rotation of each wheel. The skid control ECU 52 calculates the traveling speed of the vehicle 12 based on the pulse signal from the wheel speed sensor 50 and outputs a vehicle speed signal corresponding to the traveling speed to the CAN 60.

  The configuration of the warning system 10 has been described above. Next, the operation, action, and effect of the warning system 10 when the warning of the open state of the doors 22a to 22d is generated will be described using the control flow shown in FIGS. This control flow is started when an engine switch (not shown) is turned on. Here, the engine switch is a switch operated by a driver to operate the vehicle 12. If the vehicle 12 is driven by an engine, the engine is operated by operating the engine switch. If the vehicle 12 travels by an engine and an electric motor, and is a so-called hybrid type, travel that allows the driver to travel the vehicle 12 by depressing an accelerator pedal by operating an engine switch. It will be in a standby state.

  In step S10 shown in FIG. 3, a door open state signal is input from the body ECU 28 to the meter ECU 39 through the CAN 60. Of the doors 22a to 22d, a door open state signal of a door that is in an open state is input to the meter ECU 39.

  In step S20, it is determined whether or not a door open state signal is input to the meter ECU 39. If at least one door open state signal is input, it is necessary to warn that the door is in an open state, so the process proceeds to step S30. If no door open state signal is input, all the doors 22a to 22d are in a closed state, and it is not necessary to warn that the door is in an open state, so this control flow ends.

  In step S30, a vehicle speed signal is input from the skid control ECU 52 to the meter ECU 39 through the CAN 60. In step S40, it is determined whether or not the vehicle 12 is in a traveling state based on the vehicle speed signal. Specifically, if the vehicle speed indicated by the vehicle speed signal is other than 0 km / h, it is determined that the vehicle 12 is traveling. If it is determined in step S40 that the vehicle 12 is in a traveling state, the process proceeds to step S50. If it is determined that the vehicle 12 is not in a traveling state, that is, the vehicle speed is 0 km / h and the vehicle is in a stopped state, the control flow ends.

  As described above, in steps S10 to S40, it is determined whether or not to warn an occupant on the vehicle 12 that the doors 22a to 22d are in the open state. The process after step S50 is a process for the warning procedure of the open state of the doors 22a to 22d.

  In step S50, it is determined whether or not the door in the open state is the driver's seat door 22a. If the door in the open state is the driver's seat door 22a, the process proceeds to step S60, and an image indicating the open state of the driver's seat door 22a is displayed on the indicator 32 of the combination meter 30. Generate a buzzer sound. Alternatively, in step S60, a warning sound is generated from the driver's seat speaker 42a to warn that the driver's seat door 22a is open. In this state, the process proceeds to step S80. Thus, the driver sitting on the driver's seat 20a can grasp that the driver's seat door 22a is in an open state. In this step S60, the volume of the buzzer sound emitted from the meter speaker 34 and the volume of the warning sound emitted from the driver's seat speaker 42a may be delivered to the ears of the driver sitting on the driver's seat 20a. The volume is relatively low.

  On the other hand, in step S70, if the display 32, the meter speaker 34, or the driver's seat speaker 42a warns that the driver's seat door 22a is in the open state, the screen display of the display 32, the meter The buzzer sound from the speaker 34 or the warning sound from the driver's seat speaker 42a is stopped. If there is no warning from the display 32, meter speaker 34, or driver's seat speaker 42a that the driver's seat door 22a is open, the processing here is not executed, and the processing proceeds to step S80.

  In step S80, it is determined whether or not the open door is the passenger seat door 22b. If the door in the open state is the passenger seat door 22b, the process proceeds to step S90.

  In step S90, it is determined whether or not an occupant is seated in the passenger seat 20b. If an occupant is seated in the passenger seat 20b, the process proceeds to step S100, and a warning sound is generated from the passenger seat speaker 42b to warn that the passenger seat door 22b is open. Note that in this step S100, the volume of the warning sound emitted from the passenger seat speaker 42b may be delivered to the passenger's ear seated on the passenger seat 20b, so that the volume is relatively small.

  If no occupant is seated in the passenger seat 20b, the process proceeds to step S110, and an image showing the open state of the passenger seat door 22b is displayed on the display 32 of the combination meter 30, and a buzzer sound is generated from the meter speaker 34. Let Alternatively, in step S110, a warning sound is generated from the driver's seat speaker 42a to warn that the passenger seat door 22b is open. Alternatively, in step S110, a warning sound is generated from the passenger seat speaker 42b to warn that the passenger seat door 22b is open. The volume when the warning sound is generated from the passenger seat speaker 42b is larger than the volume of the sound emitted from the passenger seat speaker 42b in step S100. According to these things, at least the driver can be informed that the passenger seat door 22b is in an open state even if no passenger is seated in the passenger seat 20b. In particular, according to the warning by the loud sound from the passenger seat speaker 42b, the passenger seated in a seat other than the passenger seat 20b can be informed that the passenger seat door 22b is open. When the process in step S100 or S110 is executed, the process proceeds to step S130 in this state (see FIG. 4).

  On the other hand, in step S120, if the display 32, the meter speaker 34, the driver's seat speaker 42a, or the passenger seat speaker 42b warns that the passenger seat door 22b is open, the screen of the display 32 is displayed. The display, the buzzer sound from the meter speaker 34, and the warning sound from the driver seat speaker 42a or the passenger seat speaker 42b are stopped. If there is no warning from the display 32, the meter speaker 34, the driver's seat speaker 42a, or the passenger seat speaker 42b that the passenger seat door 22b is open, the processing here is not executed, and the processing proceeds to step S130. move on.

  In step S130, it is determined whether the open door is the right rear seat door 22c. If the open door is the right rear seat door 22c, the process proceeds to step S140.

  In step S140, it is determined whether or not an occupant is seated in the right rear seat 20c. If an occupant is seated in the right rear seat 20c, the process proceeds to step S150, and a warning sound is generated from the right rear seat speaker 42c to warn that the right rear seat door 22c is open. In this step S150, the volume of the warning sound emitted from the right rear seat speaker 42c may be delivered to the ear of the passenger seated in the right rear seat 20c, so that the volume is relatively small.

  If no occupant is seated in the right rear seat 20c, the process proceeds to step S160, and an image showing the open state of the right rear seat door 22c is displayed on the display 32 of the combination meter 30, and a buzzer sound is emitted from the meter speaker 34. Is generated. Alternatively, in step S160, a warning sound is generated from the driver's seat speaker 42a to warn that the right rear seat door 22c is open. In step S160, a warning sound is generated from the right rear seat speaker 42c to warn that the right rear seat door 22c is in the open state. The volume at which the warning sound is generated from the right rear seat speaker 42c is larger than the volume of the sound emitted from the right rear seat speaker 42c in step S150. According to these things, even if no occupant is seated in the right rear seat 20c, at least the driver can be informed that the right rear seat door 22c is open. Further, in particular, according to the warning by the loud sound from the right rear seat speaker 42c, it is possible to inform the occupant seated in a seat other than the right rear seat 20c that the right rear seat door 22c is open. it can. When the process in step S150 or S160 is executed, the process proceeds to step S180 in this state.

  On the other hand, in step S170, if the display 32, the meter speaker 34, the driver's seat speaker 42a, or the right rear seat speaker 42c warns that the right rear seat door 22c is open, the display 32 is displayed. , The buzzer sound from the meter speaker 34, and the warning sound from the driver seat speaker 42a or the right rear seat speaker 42c are stopped. If there is no warning from the display 32, the meter speaker 34, the driver's seat speaker 42a, or the right rear seat speaker 42c that the right rear seat door 22c is open, the processing here is not executed and the processing is stepped. The process proceeds to S180.

  In step S180, it is determined whether the open door is the left rear seat door 22d. If the open door is the left rear seat door 22d, the process proceeds to step S190.

  In step S190, it is determined whether or not an occupant is seated in the left rear seat 20d. If an occupant is seated in the left rear seat 20d, the process proceeds to step S200, and a warning sound is generated from the left rear seat speaker 42d to warn that the left rear seat door 22d is open. In this step S200, the volume of the warning sound emitted from the left rear seat speaker 42d may be delivered to the occupant's ear seated in the left rear seat 20d, so that the volume is relatively small.

  If no occupant is seated in the left rear seat 20d, the process proceeds to step S210, an image showing the open state of the left rear seat door 22d is displayed on the display 32 of the combination meter 30, and a buzzer sound is emitted from the meter speaker 34. Is generated. Alternatively, in step S210, a warning sound is generated from the driver's seat speaker 42a to warn that the left rear seat door 22d is open. In step S210, a warning sound is generated from the left rear seat speaker 42d to warn that the left rear seat door 22d is in the open state. The volume of the warning sound generated from the left rear seat speaker 42d is larger than the volume of the sound emitted from the left rear seat speaker 42d in step S200. According to these things, even if no occupant is seated in the left rear seat 20d, at least the driver can be informed that the left rear seat door 22d is open. Further, in particular, according to a high-volume warning from the left rear seat speaker 42d, it is possible to notify the passenger sitting in a seat other than the left rear seat 20d that the left rear seat door 22d is open. it can. When the process in step S200 or S210 is executed, the process proceeds to step S230 in this state.

  On the other hand, in step S220, if the display 32, the meter speaker 34, the driver's seat speaker 42a, or the left rear seat speaker 42d warns that the left rear seat door 22d is open, the display 32 is displayed. , The buzzer sound from the meter speaker 34, and the warning sound from the driver seat speaker 42a or the left rear seat speaker 42d are stopped. If there is no warning from the display 32, the meter speaker 34, the driver's seat speaker 42a, or the left rear seat speaker 42d that the left rear seat door 22d is open, the processing here is not executed and the processing is stepped. Proceed to S230.

  In step S230, it is determined whether or not the engine switch is in an ON state. If the engine switch is ON, the process returns to step S50 again. This control flow is repeatedly executed until the engine switch is turned off. If the engine switch is OFF, this control flow ends. When the control flow ends, the warning operation ends.

  The processing in each step of the control flow has been described above. Next, how the warning system 10 operates will be described using a plurality of examples. Here, (a) an operation when the passenger is seated in the passenger seat 20b and the passenger seat door 22b closed by the passenger is in an open state (half door) (first example), (B) An operation (second example) when the left rear seat door 22d is in an open state (half door) with no occupant seated in the left rear seat 20d will be described.

(A) About the first example The first example in which the passenger seat door 22b closed by the occupant is in an open state (half door) in a state where the occupant is seated in the passenger seat 20b is, for example, Occurs when boarding the seat 20b. In the state of the first example, since the passenger seat door open state signal is input to the meter ECU 39, it is determined in step S20 that the door is open. Thereafter, a vehicle speed signal is input from the skid control ECU 52 to the meter ECU 39, and it is determined in step S40 that the vehicle 12 is in a traveling state. If it is determined in step S40 that the vehicle 12 is in a traveling state, the process proceeds to step S50 and subsequent steps.

  In the first example, since the door open state signal input to the meter ECU 39 is a passenger seat door open state signal, the determination in step S50 is negative, and the process proceeds to step S70. In this first example, the display 32, the meter speaker 34, or the driver's seat speaker 42a does not warn that the driver's seat door 22a is open, so step S70 is not executed, and the process goes to step S80. move on.

  Since the door open state signal input to the meter ECU 39 is a passenger seat door open state signal, the determination in step S80 is affirmative, and the process proceeds to step S90. And since the seating signal input into meter ECU39 is a passenger seat seating signal, determination by step S90 becomes affirmation determination and a process progresses to step S100. By executing step S100, the passenger seat speaker 42b warns the passenger seated in the passenger seat 20b that the passenger seat door 22b is open.

  In the processing after step S100, the door open state signal input to the meter ECU 39 is only the passenger seat door open state signal, so the right rear seat speaker 42c, the left rear seat speaker 42d, the display 32, or the meter speaker 34 The process proceeds to step S230 without warning. The process proceeds in the order of steps S130-S170-S180-S220. If the engine switch is ON, the process returns to step S50.

  When the occupant seated on the passenger seat 20b receives the warning from the warning system 10 in the state where step S100 is being executed, the passenger seat door 22b is closed again, and the door 22b is closed, the meter ECU 39 is informed The seat door open state signal is not input. Then, the determination in step S80 is negative and the process proceeds to step S120. In step S120, since the open state of the passenger seat door 22b is canceled and closed, the warning sound from the passenger seat speaker 42b is stopped. The processing after step S130 proceeds in the order of steps S170-S180-S200 as described above. That is, after step S120 is executed, the warning about the open state of the door 22b is stopped from the display 32, the meter speaker 34, and all the speakers 42a to 42d.

  Thus, according to the warning system 10 of the present embodiment, when the passenger seat door 22b is in the open state, the open state of the door 22b is warned from the passenger seat speaker 42b that is the speaker closest to the door 22b. Since a warning sound is emitted, an occupant including a driver riding in the vehicle 12 can determine the open state door from the direction in which the warning sound is emitted. In this way, if the occupant on the vehicle 12 can determine that the open door is the passenger seat door 22b, the occupant will voluntarily reclose the passenger seat door 22b. Each time, the passenger does not have to ask another passenger to reclose the passenger seat door 22b.

  Further, according to the warning system 10 of the present embodiment, a warning sound is generated from the passenger seat speaker 42b in a state where the passenger is seated on the passenger seat 20b as shown in step S100. It is possible to reliably warn that the passenger seat door 22b is in the open state.

  In this first example, the case where the passenger seat door 22b is in the open state has been described. Even if the other doors 22a, c, d are in an open state and a passenger is seated in each of the seats 20a, c, d of the corresponding doors 22a, c, d, the warning system 10 Operates in the same way as an example.

  Specifically, when the driver's seat door 22a is in an open state, step S60 is executed, and an image in which the driver's seat door 22a is in an open state is displayed on the display 32, and the meter A buzzer sound that warns that effect is emitted from the speaker 34 or a warning sound is emitted from the driver's seat speaker 42a. If the right rear seat door 22c is open and the occupant is seated in the right rear seat 20c, step S150 is executed, and the right rear seat speaker 42c performs the right rear seat. A warning sound is issued to warn that the door 22c is open. When the left rear seat door 22d is in an open state and an occupant is seated in the left rear seat 20d, step S200 is executed, and the left rear seat speaker 42d A warning sound is issued to warn that the seat door 22d is open.

  In this control flow, when a plurality of doors, for example, the passenger seat door 22b and the right rear seat door 22c are in an open state, a warning sound is emitted from both the passenger seat speaker 42b and the right rear seat speaker 42c. The warning sound emitted from the speakers 42a to 42d may be a buzzer sound or may be a voice of a person recorded in advance.

(B) Second Example A second example in which the left rear seat door 22d is in an open state (half door) in a state where no occupant is seated in the left rear seat 20d is, for example, riding in the left rear seat 20d. This occurs when the occupant who has been opening the left rear seat door 22d gets off the vehicle. In the state of the second example, since the left rear seat door open state signal is input to the meter ECU 39, the open state is determined in step S20. Thereafter, when a vehicle speed signal is input from the skid control ECU 52 to the meter ECU 39 and it is determined in step S40 that the vehicle 12 is in a traveling state, the process proceeds to step S50 and subsequent steps.

  In the second example, since the door open state signal input to the meter ECU 39 is a left rear seat door open state signal, the determination in step S50 is negative, and the process proceeds to step S70. In this second example, the display 32, the meter speaker 34, or the driver's seat speaker 42a does not warn that the driver's seat door 22a is open, so step S70 is not executed and the process proceeds to step S80. .

  The subsequent determination at step S80 is a negative determination, and the process proceeds to step S120. In this second example, the display 32, the meter speaker 34, the driver's seat speaker 42a or the passenger seat speaker 42b does not warn that the passenger seat door 22b is open, so that step S120 is not executed. Advances to step S130.

  The determination in subsequent step S130 is a negative determination, and the process proceeds to step S170. In this second example, the display 32, the meter speaker 34, the driver's seat speaker 42a or the right rear seat speaker 42c does not warn that the right rear seat door 22c is open, so step S120 is not executed. Then, the process proceeds to step S180.

  The subsequent determination at step S180 is affirmative, and the process proceeds to step S190. Since the seating signal input to the meter ECU 39 is not at least the left rear seat seating signal, the determination in step S190 is a negative determination, and the process proceeds to step S210. Then, by executing step S210, the driver who is riding on the vehicle 12 by any one of the three means of the display 32 and the meter speaker 34, the left rear seat speaker 42d, or the driver seat speaker 42a. Or you are warned towards the passenger.

  In particular, the volume of the warning sound generated from the left rear seat speaker 42d is larger than the volume of the warning sound emitted from the left rear seat speaker 42d when the occupant is seated on the left rear seat 20d. Yes. In this way, if the volume of the warning sound from the left rear seat speaker 42d is high, even if no occupant is seated in the left rear seat 20d, the other seats 20a, b, c including the driver are seated. Can be informed that the left rear seat door 22d is in an open state. According to the warning from the left rear seat speaker 42d, for example, when an occupant is seated in the right rear seat 20c, the occupant can reclose the left rear seat door 22d. It is not necessary to ask another occupant to reclose the left rear seat door 22d each time.

  The warning by the display 32, the meter speaker 34, and the driver's seat speaker 42a can inform at least the driver that the left rear seat door 22d is in the open state.

  In the second example, the case has been described in which the left rear seat door 22d is in an open state and no occupant is seated in the left rear seat 20d. Even if the other doors 22b and c except for the driver's seat door 22a are in an open state and no occupant is seated in the seats 20b and c of the corresponding doors 22b and c, the warning system 10 is a second example. Operates in the same way.

  Specifically, when the passenger seat door 22b is in an open state and no passenger is seated in the passenger seat 20b, step S110 is executed and a warning from the display 32 and the meter speaker 34 is displayed. A warning is issued from the passenger seat speaker 42b or a warning from the driver seat speaker 42a. If the right rear seat door 22c is in the open state and no occupant is seated in the right rear seat 20c, step S160 will be executed, and a warning from the display 32 and the meter speaker 34 will be displayed. A warning is issued from the seat speaker 42c or a warning from the driver seat speaker 42a.

  The speakers 42a to 42d of the present embodiment correspond to “sound generating means” described in the claims, and in particular, the driver's seat speaker 42a or the meter speaker 34 is “driver's seat” described in the claims. It corresponds to “sound generating means”. The door sensors 24a to 24d correspond to "door open state detecting means" described in the claims, and the seating sensors 26b to 26d and the body ECU 28 include "occupant sitting state detecting means" described in the claims. The display 32 corresponds to “display means” described in the claims. The meter ECU 39 that executes steps S60, S100, S110, S150, S160, S200, and S210 corresponds to “warning control means” described in the claims.

(Other embodiments)
In the above, several embodiment of this invention was described. The present invention is not construed as being limited to the above-described embodiments, and can be applied to various embodiments without departing from the scope of the invention.

  For example, in the above-described embodiment, the meter ECU 39 determines that the door is closed because the door open state signal is not input, but the door closed state indicating the closed state of the doors 22a to 22d. The body ECU 28 may be configured to output a signal, and the door closed state may be determined based on the door closed state signal from the body ECU 28.

  In the above embodiment, when a warning is issued from the combination meter 30 in steps S60, S110, S160, and S210, a warning is issued from the display 32 and the meter speaker 34, but a warning is issued from either one. Also good.

  In step S60, the warning from the display 32, the meter speaker 34, and the driver's seat speaker 42a may be from any one of the elements 32, 34, 42a, or all the elements 32, 34, It may be from 42a. In step S110, warnings from the display 32, the meter speaker 34, the passenger seat speaker 42b, and the driver seat speaker 42a may be from any one of the elements 32, 34, 42b, 42a, or all. The elements 32, 34, 42b, and 42a may be included. In step S160, the warning from the display 32, the meter speaker 34, the right rear seat speaker 42c, and the driver seat speaker 42a may be from any one of the elements 32, 34, 42c, and 42a. It may be from all the elements 32, 34, 42c, 42a. In step S210, the warning from the display 32, the meter speaker 34, the left rear seat speaker 42d, and the driver seat speaker 42a may be from any one of the elements 32, 34, 42d, and 42a. It may be from all the elements 32, 34, 42d, 42a.

  10 warning system, 12 vehicle, 14 passenger compartment, 20a driver's seat, 20b passenger seat, 20c right rear seat, 20d left rear seat, 22a right front (driver's seat) door, 22b left front (passenger seat) door, 22c right rear (right) Rear seat), 22d Left rear (left rear seat) door, 24a Right front (driver's seat) door sensor (door open state detecting means), 24b Left front (passenger seat) door sensor (door open state detecting means), 24c Right rear (right) Rear seat) Door sensor (door open state detection means), 24d Left rear (left rear seat) door sensor (door open state detection means), 26b Passenger seat seat sensor (occupant seat state detection means), 26c Right rear seat seat sensor (occupant) Seating state detection means), 26d left rear seat seating sensor (occupant seating state detection means), 28 body ECU (door open state detection means, occupant seating state detection means), 30 combinations Meter, 32 Display (display means), 34 Meter speaker (driver seat sound generating means), 39 Meter ECU (warning control means), 40 Audio device, 42a Right front (driver seat) speaker (sound generating means, driver seat sound) Generating means), 42b left front (passenger seat) speaker (sound generating means), 42c right rear (right rear seat) speaker (sound generating means), 42d left rear (left rear seat) speaker (sound generating means), 44 audio ECU , 50 Wheel speed sensor, 52 Skid control ECU, 60 CAN

Claims (5)

A plurality of door open state detecting means provided individually for a plurality of doors provided in the vehicle and detecting an open state of the door;
A plurality of sound generating means that are individually provided at a plurality of locations in the vehicle interior of the vehicle and emit sound;
When at least one of the door open state detection means detects the door open state, it is closest to the open state door provided with the door open state detection means for detecting the door open state. A vehicle warning system comprising: warning control means for warning that the open door is in an open state by generating a warning sound from a specific sound generating means provided at a position. Occupant seating state detection means for detecting the seating state of the occupant in each seat provided at a position closest to each door of the vehicle,
When at least one of the door open state detection means detects the open state of the door, the warning control means performs warning of the open state door,
When the occupant seating state detection means detects the occupant's seating in a specific seat provided at a position closest to the open state door, the warning control means, from the specific sound generation means, The vehicle warning system according to claim 1, wherein the warning sound is generated toward a specific seat. When at least one of the door open state detection means detects the open state of the door, the warning control means performs warning of the open state door,
When the occupant seating state detection means does not detect the occupant's seating on the specific seat, the warning control means does not generate the warning sound from the specific sound generation means, and among the sound generation means, 3. The vehicle warning system according to claim 2, wherein the warning sound is generated from a driver seat sound generating means provided at a position closest to the driver seat. When at least one of the door open state detection means detects the open state of the door, the warning control means performs warning of the open state door,
When the occupant seating state detection means does not detect the occupant's seating in the specific seat, the warning control means generates the specific sound generation means when detecting the occupant's seating in the specific seat. 4. The vehicle warning system according to claim 2, wherein the specific sound generating unit generates the warning sound having a volume higher than that of the warning sound. 5. The vehicle is provided with display means for displaying the state of the vehicle in front of the driver's seat,
When at least one of the door open state detection means detects the open state of the door, the warning control means performs warning of the open state door,
The said warning control means displays the presence of the said open state door on the said display means when the said passenger | crew seating state detection means does not detect the seating of the passenger | crew to the said specific seat, The said display means is displayed. 5. The vehicle warning system according to any one of 4 above.

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