JP5029434B2 - Drunk state determination device and drunk driving prevention device - Google Patents

Description

  The present invention suppresses drunk driving by using a drunk driving prevention apparatus that determines whether or not a driver is in a drunk state by detecting a specific component contained in the air in the passenger compartment, and the determination result thereof The present invention relates to a drunk driving prevention device that performs control for the purpose.

  In recent years, from the viewpoint of safe driving, research on drunk driving prevention devices that determine whether a driver is in a drunk state and permit the vehicle to run only when it is determined that the driver is not in a drunk state has been promoted. ing.

  As a method for determining whether or not the driver is in a drunk state, for example, an inspection device having an exhalation breathing port is arranged near the driver's seat so that the driver breathes in when the vehicle starts. It is conceivable to make a determination by comparing the concentration of an indicator component such as alcohol or acetaldehyde contained in exhaled breath with a determination threshold value.

Further, it is also possible to consider a mode in which the same inspection is performed on the air in the passenger compartment that is inhaled by negative pressure without providing the exhalation inlet as described above, and having an air suction hole at an arbitrary position in the passenger compartment. Further, an inspection sensor may be provided at a position where the driver's breath comes into contact. These aspects have the advantage that the driver is not bothered to act on his / her own and can be continuously monitored even while the vehicle is running. The invention about the navigation apparatus which has a function which performs alcohol detection in such a mode is indicated (for example, refer to patent documents 1).
JP 2005-24507 A

  However, in the above-described conventional apparatus, the detection of the indicator component concentration may not be sufficiently significant due to the operation of a vehicle opening / closing mechanism that inhibits the detection of the indicator component concentration, such as a door or a window. .

  The present invention is for solving such a problem, and a drunk state determination device for a vehicle capable of making detection of an indicator component concentration sufficiently significant and an effect of drunk driving using the determination result. An object of the present invention is to provide a drunk driving prevention device that can be prevented automatically.

In order to achieve the above object, the first aspect of the present invention provides:
Index component concentration detection means for detecting the concentration of an index component included in the driver's breath, the indicator component indicating a driver's drinking state;
An open / close mechanism control means for controlling the open / close mechanism of the vehicle, and a drinking level determination device comprising:
The opening / closing mechanism control means prohibits the operation of the opening / closing mechanism of the vehicle that inhibits the drinking state determination until the drinking state determination using the index component concentration detected by the index component concentration detecting means is completed. Characterized by the
It is a drinking state determination device.

  According to the first aspect of the present invention, the operation of the opening / closing mechanism of the vehicle that inhibits the drinking level determination until the drinking level determination using the index component concentration detected by the index component concentration detection means is completed. Since it is prohibited, the detection of the indicator component concentration can be made sufficiently significant.

In the first aspect of the present invention,
The opening / closing mechanism control means prohibits the release of door locks other than the driver's door until the drinking level determination using the index component concentration detected by the index component concentration detection means is completed. It is good also as what to do.

In the first aspect of the present invention,
The opening / closing mechanism control means may prohibit the window opening operation until the drinking level determination using the index component concentration detected by the index component concentration detection means is completed.

The second aspect of the present invention is:
A drinking level determination apparatus according to the first aspect of the present invention;
Drunk driving suppression control means for performing control for suppressing drunk driving according to the determination result of the drinking level determination device;
A drunk driving prevention apparatus comprising:

  According to the second aspect of the present invention, drunk driving can be effectively prevented using the determination result of the drinking level determination apparatus of the first aspect of the present invention.

  ADVANTAGE OF THE INVENTION According to this invention, the drunk state determination apparatus for vehicles which can make detection of an indicator component density | concentration significant enough, and the drunk driving which can prevent drunk driving effectively using the determination result A prevention device can be provided.

  Hereinafter, the best mode for carrying out the present invention will be described with reference to the accompanying drawings.

<First embodiment>
The drunk driving prevention apparatus 1 according to the first embodiment of the present invention will be described below. FIG. 1 is a diagram illustrating an example of the overall configuration of the drunk driving prevention device 1. The drunk driving prevention device 1 includes a drunk state determination device 11 and an drunk driving suppression control ECU (Electronic Control Unit) 70 as main components. In addition, the drinking level determination device 11 includes an index component concentration detection device 20, a body ECU 30, and a master ECU 60.

  The indicator component concentration detection device 20 is, for example, an air suction hole 21 installed in an upper part of a steering column, a pump 22 for guiding air in the vehicle compartment from the air suction hole 21 to the air flow path by negative pressure, A humidity sensor 23 for detecting the humidity of the air, a semiconductor sensor 24 for detecting an index component such as alcohol or acetaldehyde, an operation switch 25 for turning on the apparatus, and the like are included. Note that this configuration is merely an example, and the air suction hole 21 may be installed at an arbitrary position in the vehicle interior (for example, around the rearview mirror, the ceiling above the driver's seat, around the combination meter, etc.). Further, the semiconductor sensor 24 may be installed at a position where the driver's breath is taken without providing the air suction hole 21 and the pump 22.

  When the operation switch 25 is operated by the user, the indicator component concentration detection device 20 starts operation by transmitting a signal indicating that to the master ECU 40, and drives the pump 22 from the air intake hole 21 to the inside of the vehicle interior. Inhale air. Then, the outputs of the humidity sensor 23 and the semiconductor sensor 24 are transmitted to the master ECU 40.

  The body ECU 30 is a microcomputer in which a ROM (Read Only Memory), a RAM (Random Access Memory), and the like are connected to each other through a bus with a central processing unit (CPU) as the center, and an HDD (Hard Disc Drive). And a storage device such as a DVD (Digital Versatile Disk) drive, a CD (Compact Disc) drive, a flash memory, an I / O port, a timer, a counter, and the like. The body ECU 30 concentrates control of the door lock ASSY 40, the power window device, the electric seat, the electric mirror, and the like. The body ECU 30 may follow a permission signal from a personal authentication device such as an immobilizer when controlling each device to be controlled. However, since this does not have a direct relationship with the present invention, the description is omitted. .

  The door lock ASSY 40 is a group of devices disposed on each door (shown as a single unit in FIG. 1), and includes a door lock mechanism 42, a door lock control motor 44, and a door lock position switch 46. . The door lock mechanism 42 is a lock member that mechanically allows or prohibits the opening of the door, a door outside handle, a touch sensor installed inside the door outside handle, and a lock that locks the door from inside and outside the vehicle interior. / Unlock switch, key cylinder that mechanical key is inserted and rotated, etc. The door lock control motor 44 is operated by an instruction from the body ECU 30 to operate the lock member. For example, the door lock position switch 46 is connected to the lock member, detects the state (locked state or unlocked state) of the door lock mechanism 42, and transmits the detected state to the body ECU 30.

  The body ECU 30 detects when the touch sensor detects that the user touches the inside of the door outside handle, when the lock / unlock switch is operated, or when the mechanical key is inserted and rotated in the key cylinder. For example, the door lock control motor 44 is driven to bring the vehicle door into an unlocked state or a locked state.

  Further, the body ECU 30 in the present embodiment unlocks only the driver's seat door when unlocking the vehicle door in response to an unlocking instruction from outside during parking.

  The master ECU 60 is a microcomputer having a hardware configuration similar to that of the body ECU 30, for example. The master ECU 60 determines whether or not the driver is in a drinking state based on the data input from the index component concentration detection device 20. Specifically, for example, after confirming that the driver's breath has been inhaled when the humidity detected by the humidity sensor 23 is equal to or higher than a predetermined value, the index component concentration detected by the semiconductor sensor 24 is set to the threshold value. If it is above, the driver is in a drinking state, and if it is less than the threshold value, it is determined that the driver is not in a drinking state. If the humidity detected by the humidity sensor 23 is less than a predetermined value, the determination result may not be determined.

  Further, the master ECU 60 prohibits the operation of the vehicle opening / closing mechanism that inhibits the drinking level determination until the drinking level determination ends. In the present embodiment, unlocking of vehicle doors other than the driver's seat door (release of the door lock) is prohibited. As a specific process, an execution program for the body ECU 30 is set so that the body ECU 30 does not unlock vehicle doors other than the driver's door until the permission signal is input from the master ECU 60. That's fine.

  As a result, when the vehicle door is unlocked from the outside during parking as described above, only the driver's seat door is unlocked, and thereafter, the vehicle other than the driver's seat door until the drinking level determination is completed. Since the unlocking of the door is prohibited, only the driver is present in the passenger compartment. Therefore, it is possible to suppress the inconvenience that an occupant other than the driver impersonates the driver and blows on the index component concentration detection device 20 to make the driver appear not to be in a drinking state. Therefore, the detection of the indicator component concentration by the indicator component concentration detection device 20 can be made sufficiently significant.

  Hereinafter, the flow of processing by the drinking level determination apparatus 11 of the present embodiment will be described. FIG. 2 is a flowchart showing a flow of characteristic processing executed by the drinking level determination apparatus 11. This flow is started when the vehicle is parked, for example.

  First, it waits until a door lock release instruction is issued from the outside using an electronic key or a mechanical key (S100).

  When the door lock release instruction is issued, the body ECU 30 unlocks only the driver's seat door (S102).

  And it waits until the operation switch 25 is operated (S104).

  When the operation switch 25 is operated, the index component concentration detection device 20 starts to operate (S106), and outputs the sensor output value to the master ECU 60 (S108).

  The master ECU 60 determines the drinking level of the driver based on the input data (S110). When the determination result is confirmed, the master ECU 60 outputs the determination result to the drunk driving suppression control ECU 70, and the vehicle other than the driver seat door. A permission signal for permitting unlocking of the door is output to the body ECU 30 (S112, S114, S116).

  The body ECU 30 that has received the permission signal may immediately unlock the vehicle door other than the driver's seat door, or wait for a second unlocking instruction and unlock the vehicle door other than the driver's seat door. May be.

  The drunk driving suppression control ECU 70 is a microcomputer having a hardware configuration similar to that of the body ECU 30, for example. The drunk driving suppression control ECU 70 that has received the determination result performs various controls for suppressing the drunk driving when the determination result of the drinking level determination device 11 determines that the driver is in the drunk state. To do. Specifically, if the vehicle is stopped, an instruction signal is output to the engine control computer so as to prohibit or forcibly stop the engine start. Also, if the vehicle is running, the vehicle speed is restricted, the shift position is fixed or restricted (restricted to 1st speed or 2nd speed), etc., and when the vehicle speed falls below a certain speed, forced braking operation, fuel supply cut, etc. are performed. Stop the vehicle.

  According to the drinking level determination apparatus 11 of the present embodiment described above, the release of door locks other than the door for the driver's seat is prohibited until the drinking level determination is completed. It is possible to suppress the inconvenience of spoofing and blowing the indicator component concentration detection device 20 so that the driver is not in a drinking state. Therefore, the detection of the indicator component concentration by the indicator component concentration detection device 20 can be made sufficiently significant.

  Moreover, according to the drunk driving prevention apparatus 1 of a present Example, drunk driving can be effectively prevented using the determination result of the drunk state determination apparatus 11.

<Second embodiment>
Hereinafter, the drunk driving prevention apparatus 2 according to the second embodiment of the present invention will be described. FIG. 3 is a diagram illustrating an example of the overall configuration of the drunk driving prevention device 2. The drunk driving prevention device 2 includes a drunk state determination device 12 and a drunk driving suppression control ECU 70 as main components. The drinking level determination device 12 includes an index component concentration detection device 20, a body ECU 30, and a master ECU 60. Note that the hardware configuration of each of these components is the same as that of the first embodiment, so the same reference numerals are given and description thereof is omitted.

  In the present embodiment, the master ECU 60 prohibits the window opening operation until the drinking level determination is completed. Therefore, the power window device 50 is one of the controlled objects to be controlled in the application of the present invention.

  The power window device 50 is a device arranged for each window (shown as a single device in FIG. 3), and includes an opening / closing instruction switch 52, a window body 54, and a window drive motor 56. An operation performed on the opening / closing instruction switch 52 is input to the body ECU 30, and the body ECU 30 drives the window driving motor 56 in response thereto. The window drive motor 56 is a DC motor, for example, and drives the window main body 52 up and down by pulling the drive cable in both directions.

  In addition, the body ECU 30 invalidates the operation performed on the opening / closing instruction switch 52 and instructs the opening / closing instruction switch 52 to open the window in an initial state (a state where an occupant has boarded from the parking state). However, the window drive motor 56 is not driven.

  Thus, since the window is kept closed until the drinking state determination is completed, the detection value of the indicator component concentration detection device 20 is included in the exhalation of the driver by the exhaust gas flowing in from the outside of the vehicle. The inconvenience that the component is not reflected can be solved. In addition, it is possible to prevent the inconvenience that the person leans into the passenger compartment through the window from outside the vehicle and blows on the indicator component concentration detection device 20. Therefore, the detection of the indicator component concentration by the indicator component concentration detection device 20 can be made sufficiently significant.

  Hereinafter, the flow of processing by the drinking level determination apparatus 12 of the present embodiment will be described. FIG. 4 is a flowchart showing a flow of characteristic processing executed by the drinking level determination device 12. This flow is started when the vehicle is parked, for example.

  First, it waits until the door lock cancellation | release instruction | indication by an electronic key or a mechanical key is made from the outside (S200).

  When the door lock release instruction is issued, the body ECU 30 invalidates the operation performed on the opening / closing instruction switch 52 as described above (S202). Since the window is normally closed during parking, the window opening operation is substantially invalidated. Therefore, in FIG. 4, “window opening operation invalid” is described.

  And it waits until the operation switch 25 is operated (S204).

  When the operation switch 25 is operated, the index component concentration detection device 20 starts operating (S206), and outputs the sensor output value to the master ECU 60 (S208).

  The master ECU 60 determines the driver's drinking level based on the input data (S210). When the determination result is confirmed, the master ECU 60 outputs the determination result to the drunk driving suppression control ECU 70 and permits the window opening operation. The permission signal is output to the body ECU 30 (S212, S214, S216).

  The body ECU 30 that has received the permission signal validates the operation performed on the opening / closing instruction switch 52, and thereafter drives the window driving motor 56 in accordance with the operation performed on the opening / closing instruction switch 52.

  According to the drinking level determination device 12 of the present embodiment described above, the window opening operation is prohibited until the drinking level determination is completed. The problem that the driver leans out through the window and blows on the index component concentration detection device 20 to make the driver appear not to be drunk can be suppressed. Therefore, the detection of the indicator component concentration by the indicator component concentration detection device 20 can be made sufficiently significant.

  According to the drunk driving prevention device 2 of the present embodiment, drunk driving can be effectively prevented using the determination result of the drinking level determination device 12.

  The best mode for carrying out the present invention has been described above with reference to the embodiments. However, the present invention is not limited to these embodiments, and various modifications can be made without departing from the scope of the present invention. And substitutions can be added.

  For example, both the unlocking of the vehicle door other than the driver's door and the opening operation of the window may be prohibited until the drinking state determination is completed.

  Moreover, although body ECU30, master ECU60, and drunk driving suppression control ECU70 were expressed as separate bodies, you may have the hardware apparatus with which these were integrated.

  The present invention can be used in the automobile manufacturing industry, the automobile parts manufacturing industry, and the like.

It is a figure which shows an example of the whole structure of the drunk driving prevention apparatus 1 which concerns on 1st Example of this invention. It is a flowchart which shows the flow of the characteristic process which the drinking level determination apparatus 11 performs. It is a figure which shows an example of the whole structure of the drunk driving prevention apparatus 2 which concerns on 2nd Example of this invention. It is a flowchart which shows the flow of the characteristic process which the drinking level determination apparatus 12 performs.

Explanation of symbols

1, 2 Drunk driving prevention device 11, 12 Drinking state determination device 20 Index component concentration detection device 21 Air intake hole 22 Pump 23 Humidity sensor 24 Semiconductor sensor 25 Operation switch 30 Body ECU
40 Door lock assembly
42 Door Lock Mechanism 44 Door Lock Control Motor 46 Door Lock Position Switch 50 Power Window Device 52 Open / Close Instruction Switch 54 Window Body 56 Window Drive Motor 60 Master ECU
70 ECU for drunk driving suppression control

Claims (3)

Index component concentration detection means for detecting the concentration of an index component included in the driver's breath, the indicator component indicating a driver's drinking state;
An open / close mechanism control means for controlling the open / close mechanism of the vehicle, and a drinking level determination device comprising:
The opening / closing mechanism control means unlocks only the driver's door when unlocking the vehicle door in accordance with an unlocking instruction from the outside, and the index component concentration detected by the index component concentration detecting means Until the drinking state determination using is completed , the release of door locks other than the driver's door is prohibited ,
Drunk state determination device. The opening / closing mechanism control means prohibits a window opening operation until the drinking level determination using the index component concentration detected by the index component concentration detection means is completed.
The drinking level determination apparatus according to claim 1 . The drinking level determination device according to claim 1 or 2 ,
Drunk driving suppression control means for performing control for suppressing drunk driving according to the determination result of the drinking level determination device;
A drunk driving prevention device comprising:

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