JP2006280748A - Air content supply device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air content supplying device for a vehicle capable of reliably supplying each crewman with air including air content. <P>SOLUTION: An air content supplier ECU101 applies square wave voltage to a coil 42 of an air compressing means 14 more than once. The square wave voltage is set, whose amplitude is 12V, voltage applied time is T1, and voltage applied interval is T2 for example, so that an air cannon intermittently discharges air for the crewman at a period (T1+T2). The crewman inhales perfume component discharged at certain intervals through the nose, which offers an awakening or a relaxing effect. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an air quality component supply device that supplies an air cannon containing an aromatic component in a passenger compartment to an occupant, and relates to a vehicle air quality supply device that can intermittently supply the air cannon.

  Conventionally, a fragrance for removing an unpleasant odor in a vehicle or providing a comfortable scent sensation to passengers has been provided. For example, a fragrance component in a liquid state or a gel state is enclosed in a container, and the fragrance component is supplied to the entire interior of the vehicle by releasing the vaporized fragrance component from the opening of the container.

  However, since such a fragrance always releases a fragrance component into the vehicle, the fragrance atmosphere in the vehicle is kept constant. For this reason, the olfactory sense of the occupant becomes accustomed to the aromatic atmosphere, the olfactory sense is lowered, and the scent component cannot be sensed.

In order to solve this problem, there is an aroma component supply device in which an aroma component is mixed with conditioned air to be blown from an air conditioner outlet, and this conditioned air is blown out intermittently. This is configured to supply fragrance components to the entire interior of the vehicle by blowing out conditioned air containing the fragrance components from an outlet provided in the instrument panel. For example, an intermittent operation based on a 1 / f random number is performed. With such a configuration, a scent sensation can always be given to the occupant without causing a decrease in smell (see, for example, Patent Document 1).
Japanese Patent No. 3134306

  However, in the above configuration, since the fragrance component is supplied to the entire interior of the vehicle, a problem of disgust due to the preference of each occupant with respect to the fragrance component and a problem of a scented odor on the interior member such as a seat have occurred. . Furthermore, it has been impossible to accurately supply an appropriate fragrance component or an appropriate amount of the fragrance component to an individual occupant in accordance with the occupant's needs or the situation of the occupant.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a vehicle air quality capable of accurately supplying useful fragrance components to individual occupants without causing a decrease in olfactory sense of the occupants. It aims at providing a component supply apparatus.

  In order to achieve the above object, the technical means described in claims 1 to 12 are employed.

  According to the first aspect of the present invention, there is provided an air quality component supply device for a vehicle that supplies an air cannon to an occupant in a vehicle, the air quality component chamber holding a predetermined fragrance component, and the air in the air quality component chamber. An air cannon is generated by compression, and an air compressing unit that discharges the air cannon toward an individual occupant and a control unit that intermittently drives the air compressing unit are provided.

  According to this configuration, since the air cannon containing the fragrance component can be released to individual occupants, the air cannon can be reliably supplied to the occupants who need it. In addition, since the air cannon is intermittently released, it is possible to prevent a decrease in olfactory sensation due to continuous inhalation of fragrance components, and to always give a sense of smell to the passenger.

  The invention according to claim 2 comprises fragrance component storage means for storing a plurality of fragrance components, and transport means for transporting the fragrance components stored in the fragrance component storage means to the air quality component supply chamber. The air gun containing a predetermined amount of the fragrance component is given to the occupant who needs the fragrance component at a predetermined timing by controlling the operation of the conveying means and the air compression means based on the estimation result. It is characterized by the fact that it is made to release.

  If comprised in this way, the air cannon containing the optimal amount of fragrance components can be supplied at the optimal timing according to the environment, psychological state, and physical state of each occupant, thereby improving passenger comfort Can do.

  According to a third aspect of the present invention, the air quality component chamber and the air compression means are configured in the housing, and the air compression means is provided in the compression member that changes the volume of the air quality component chamber by magnetic force and electromagnetic force, and the compression member. It is characterized by being comprised from a coil and the magnet provided facing a compression member.

  According to this configuration, since the space occupied by the components constituting the air compression means can be reduced, a vehicle air quality component supply device in which the entire casing is downsized can be obtained.

  According to a fourth aspect of the present invention, the air quality component chamber and the air compression means are configured in the housing, and the air compression means is provided on the compression member that changes the volume of the air quality component chamber by magnetic force and electromagnetic force, and the compression member. It is comprised from the magnet and the coil provided facing a compression member, It is characterized by the above-mentioned.

  According to this configuration, since the volume occupied by the air compression means can be reduced by using both magnetic force and electromagnetic force as the driving force for compression, the entire housing can be made smaller and the installation space is limited. Miniaturization of a vehicle air quality component supply device for a vehicle can be realized.

  According to invention of Claim 5, the housing | casing is made into the flat shape, It is characterized by the above-mentioned.

  This configuration is useful for vehicles with limited installation space, and also places the device in a narrow place that is closer to the occupant, such as an instrument panel, an overhead module, or a ceiling. As a result, the air cannon can be effectively released toward the occupant.

  According to invention of Claim 6, the housing | casing is made into the column shape, It is characterized by the above-mentioned.

  This configuration is useful for vehicles with limited installation space, and also places the device in a narrow place that is closer to the occupant, such as an instrument panel, an overhead module, or a ceiling. It becomes possible to do.

  According to the seventh aspect of the present invention, the apparatus is operated based on the control of the control means, and includes a voltage applying means for applying a rectangular wave voltage to the coil.

  According to this configuration, electromagnetic force is instantaneously generated by applying a rectangular wave voltage including a high-frequency component, so that the air in the air quality component chamber is instantaneously compressed and the generation of an air cannon is promoted. can do.

  According to an eighth aspect of the present invention, the voltage application means includes a booster circuit that boosts the power supply voltage of the in-vehicle power supply, and applies the output voltage of the booster circuit to the coil.

  According to the present configuration, the air cannon can be appropriately discharged to the occupant because the transport distance of the air cannon can be adjusted by boosting the applied voltage by the boosting circuit.

  The invention according to claim 9 is characterized in that the control means controls operations of the conveying means and the air compression means based on a signal from the navigation ECU or / and the vehicle integrated ECU.

  According to this configuration, it is possible to supply a more appropriate fragrance component by estimating the individual state of the occupant from the signal of the navigation ECU or the signal of the vehicle integrated ECU. This can be further improved.

  According to a tenth aspect of the present invention, the control means controls the operations of the conveying means and the air compressing means based on the detection data of the biological sensor that detects the occupant's biological signal.

  According to this configuration, it is possible to supply a more appropriate fragrance component by estimating the individual state of the occupant from the detection data of the biosensor, so that the comfort can be further improved for each occupant. .

According to the eleventh aspect of the present invention, a CO ₂ concentration sensor for detecting the CO ₂ concentration of the air in the vehicle is provided, and the control means is provided in the aroma component storage means when the detected value of the CO ₂ concentration sensor is equal to or greater than a predetermined value. Among the stored fragrance components, the conveying means is operated so as to convey the fragrance component having awakening effect to the air quality component chamber, and the air compression means is operated.

According to this configuration, it is possible to supply an air cannon containing an aroma component having an arousal effect in conjunction with the CO ₂ concentration state of the air in the vehicle, so that the location close to the detection position of the CO ₂ concentration sensor. It is possible to appropriately improve the passenger environment.

  In a twelfth aspect of the present invention, the control means controls the operations of the conveying means and the air compressing means based on the random numbers output from the random number generating circuit.

  According to this configuration, the conveying means and the air compressing means can be intermittently operated based on the random number output from the random number generating circuit, thereby always maintaining an appropriate freshness without getting tired of the scent sensation of the occupant. Can be given.

(First embodiment)
An embodiment in which a vehicle air quality component supply device according to the present invention is applied to an automobile will be described with reference to FIGS. A plurality of air quality component supply devices for a vehicle according to the present embodiment are provided in the vehicle, discharge an air cannon containing a predetermined air quality component toward the occupant direction, and supply this to the occupant. Air quality component release means 10, 11, 12 for accurately releasing an air cannon to passengers 3, 4 existing in the interior 2 of the automobile 1, and air quality component supply ECU 101 (control means) for controlling these operations (See FIG. 2).

  As shown in FIG. 1, the air quality supply component means 10 to 12 are provided at positions where the air cannon can be accurately discharged to the passengers 3 and 4 existing in the vehicle interior 2 of the automobile 1.

  The air cannon according to the present invention is intended to be released as a lump of fluid by being compressed from a discharge port formed in the space when the fluid stored in the space is compressed. Yes. As the form of the air cannon, for example, the air cannon is generally released as a lump having a vortex ring shape or a spherical shape.

  The air quality component releasing means 10 is provided in the instrument panel 70 so that the air cannon can be released toward the inside 2 of the vehicle. The air quality component releasing means 10 may be provided in the vicinity of the air conditioner device normally disposed in the instrument panel 70, or may be configured integrally with the air conditioner device.

  The air cannon discharged from the discharge port 27 of the air quality component discharge means 10 is discharged toward the vicinity of the face of the occupant 3 sitting in the front seat 5 via the grill outlet formed in the instrument panel 70. The When this air cannon hits the face or shoulder of the occupant 3, the mass of the air cannon collapses and the contained air quality component is diffused to form the diffusion region 7, and from the nose and mouth of the occupant 3. Inhaled and taken into the body.

  The air quality component releasing means 11 is provided in the overhead module 9 formed in the front seat side ceiling portion of the vehicle interior 2. The air cannon discharged from the discharge port of the air quality component discharge means 11 is discharged toward the vicinity of the face of the occupant 3 sitting in the front seat 5 via the blowout port formed in the overhead module 9. When the air cannon hits the face or head of the occupant 3, the air cannon lumps and the contained air quality component diffuses in the diffusion region 7.

  Moreover, the air quality component discharge | release means 12 is provided in the rear seat side ceiling part in the vehicle interior 2. As shown in FIG. The air cannon discharged from the discharge port of the air quality component discharge means 12 is discharged toward the vicinity of the face of the occupant 4 sitting in the rear seat 6. When this air cannon hits the face or head of the occupant 4, the air cannon lumps and the contained air quality component is diffused so as to form a diffusion region 8, and the air cannon is passed through the nose and mouth of the occupant 3. Inhaled and taken into the body.

  In addition, the housing | casing which comprises the air quality component discharge | release means 10, 11, and 12 is formed in flat shape, In narrow space, such as the inside of the instrument panel 70, the overhead module 9, and the ceiling part of the vehicle interior 2, etc. It is possible to arrange.

  Next, the structure of the air quality component discharge | release means 10-12 is demonstrated. As shown in FIG. 3, the air quality component discharge means 10 to 12 have an air gun discharge port 27 on one end face in the housing 16 and communicate with the discharge port 27 in the housing 16. The component chamber 15, the air compression means 14 for compressing and reducing the volume of the air quality component chamber 15 on the other side, the fragrance component storage means 17A to 17C for storing plural kinds of fragrance components, and the fragrance component storage means 17A to 17C The transport means 21 selectively transports the stored fragrance component to the air quality supply chamber 15.

  As shown in FIG. 3, the air quality component chamber 15 is a space in which the fragrance components stored in the fragrance component supply means 17 </ b> A to 17 </ b> C are sent and stored by the transport means 21. The fragrance component conveyed by the conveying means 21 is sent into the air quality component chamber 15 in a gaseous state, and is filled in this volume.

  On the other hand, the air compressing means 14 is deformed to the air quality component chamber 15 side by a magnetic force and an electromagnetic force and changes the volume of the air quality component chamber 15, a coil 24 provided in the compression member 22, and a compression It is comprised from the magnet 23 provided facing the member 22. FIG.

  When a voltage is applied to the air compressing means 14 from a vehicle-mounted battery or the like, an electromagnetic force that pushes the compressing member 22 toward the air quality component chamber 15 by flowing through the coil 24 works. Furthermore, the magnetic force that passes through the inside of the coil 24 by the magnet 23 also acts, and the compression member 22 is instantaneously greatly deformed toward the air quality component chamber 15, and the compression member 22 protrudes greatly from the central portion thereof. In this shape, the air 24 extends to the air quality component chamber 15 side to the position 25, and the coil 24 also extends to the air quality component chamber 15 side to the position 26 together with the compression member 22. Due to the deformation of the compression member 22, the volume of the air quality component chamber 15 is instantaneously reduced. Therefore, the humidity component filled in the volume is compressed and instantaneously discharged to the outside from the discharge port 27. become. By causing this series of operations instantaneously, the air containing the humidity component released from the discharge port 27 is discharged into the vehicle 2 as a fluid mass, for example, a vortex ring or a spherical mass.

  FIG. 4 is a perspective view showing the internal configuration of the housing 16, and the air quality component chamber 15 and the air compression means 14 are partitioned by a thin plate-like compression member 22. The compression member 22 is composed of a plate-like member having a self-returning force, and is preferably composed of a thin plate such as rubber, silicon, or elastomer. The coil 24 may be fixed to the compression member 22 by adhesion, or may be embedded and integrated in the compression member 22. The magnet 23 is arranged with a distance that does not contact the coil 24 when the compression member 22 is not deformed, and the distance of the magnet 23 from the surface of the compression member 22 is made as small as possible. It is desirable to configure.

  The fragrance component storage means 17A to 17C are tanks for storing and sealing the fragrance component that is an air quality component, and store the volatile fragrance component in a liquid state in an atmospheric pressure atmosphere. The fragrance components stored in the storage means 17A to 17C are different from each other. For example, 17A has an awakening effect (for example, a strong odor component, a high oxygen concentration fragrance component, a fragrance component containing cold air). ), 17B has a relaxing effect (for example, an aroma component and a negative ion-containing fragrance component), and 17C has a vehicle sickness preventing effect. In addition, the fragrance component storage means 17A to 17C are provided with valves 18A to 18C, which will be described later, and the fragrance components can be released by opening the valves 18A to 18C. In the present embodiment, the three fragrance component storage means 17A to 17C are provided to store three types of fragrance components. However, the present invention is not limited to this, and two or less types or four or more types of fragrance components are stored. You may comprise so that it may obtain.

  The transport means 21 includes valves 18 </ b> A to 18 </ b> C, connection tubes 20 </ b> A to 20 </ b> C that connect the valves 18 </ b> A to 18 </ b> C and the air quality supply chamber 15, and a transport pump 19 that transports fragrance components to the air quality chamber 15. Yes. The valves 18A to 18C are opened and closed based on a drive signal from an air quality component supply ECU 101, which will be described later. When the valves 18A to 18C are in an open state, the flow path to the air quality supply chamber 15 is opened, and thereby The aroma components of the storage means 17A to 17C are vaporized and flow into the connecting tubes 20A to 20C. Similarly, the transport pump 19 operates upon receiving a drive signal from the air quality supply ECU 101, and by operating this, the fragrance component staying in the connection tubes 18 </ b> A to 18 </ b> C is transferred to the air quality supply chamber 15. It is sent. The fragrance component storage means 17A to 17C and the transport means 21 constitute the fragrance component supply means described in the claims.

  Next, another example of the configuration of the vehicle air quality supply means 10 to 12 will be described. As shown in FIG. 5, the air quality component releasing means 10-12 is different from the above structure in the air compressing means 14A in the housing 16A, and different parts will be described below.

  The air compression means 14A includes a compression member 40 that changes the volume of the air quality component chamber 15A by a magnetic force and an electromagnetic force and changes the volume of the air quality component chamber 15A, a magnet 41 provided in the compression member 40, and a compression member 40 and a coil 42 provided opposite to 40.

  When a voltage is applied to the air compressing means 14A from a vehicle-mounted battery or the like, an electromagnetic force is generated that causes a current to flow through the coil 42 and pushes the compression member 40 toward the air quality component chamber 15A. Further, a repulsive force is also exerted by the magnet 41, and a force for deforming the compression member 40 is exerted by the action of these electromagnetic force and magnetic force, so that the compression member 40 instantaneously acts on the air quality component chamber 14A side. Deforms greatly. At this time, the compression member 40 protrudes to the air quality component chamber 15A side up to a position 43 in a shape with its central portion protruding greatly, and the magnet 41 is also integrated with the compression member 40 to the air quality component chamber 15A side to the position 44. It will overhang. Due to the deformation of the compression member 40, the volume of the air quality component chamber 15A is instantaneously reduced, so that the humidity component filled in the volume is compressed and instantaneously discharged to the outside from the discharge port 27. become. By causing this series of operations instantaneously, the air containing the humidity component released from the discharge port 27 is discharged into the vehicle 2 as a fluid mass, for example, a vortex ring or a spherical mass.

  FIG. 6 is a perspective view showing the internal configuration of the housing 16A. The air quality component chamber 15A and the air compression means 14A are partitioned by a thin plate-shaped compression member 40. FIG. A coil 42 is arranged around the magnet 41 so as to surround it. The magnet 41 and the coil 42 are insulated by a resin member formed in a tubular shape. A cylindrical magnet 41 is arranged along the inner diameter of the resin member, and the magnet 41 slides on the inner diameter portion of the resin member along with the deformation of the compression member 40 due to electromagnetic force and magnetic force.

  The compression member 40 is composed of a plate-like member having a self-returning force, and is preferably composed of a thin plate such as rubber, silicon, or elastomer. The magnet 41 may be fixed to the compression member 40 by adhesion, or may be embedded in the compression member 40 and integrated. The coil 42 is arranged with a distance that does not contact the compression member 40 in a state where the compression member 40 is not deformed. The distance from the surface of the compression member 40 to the end surface of the housing 16A is as follows. It is desirable to configure the distance as small as possible to accommodate the magnet 41 as much as possible.

  As described above, in the configuration of the air compression means 14A, the magnet 41 is moved together with the compression member 40, so that a movable structure having excellent durability against repeated reciprocating motion can be obtained.

  By configuring the air quality component releasing means in this way, the physiques of the casings 16 and 16A can be formed very small. For example, the longitudinal length L1 of the air compression means 14, 14A and the air quality component chambers 15, 15A is about 50 mm, the length Z1 of the air quality chamber is about 30 mm, and the length of the casing It is possible to form such that the dimension X1 is about 30 mm and the diameter Y1 of the discharge port 27 is about φ8 to 10 mm. Further, as shown in FIG. 7, the casings 16 and 16A may have a cylindrical shape as the casing 16 (16A). In this case, the dimension of the outer diameter φR2 of the cylinder is about φ30 mm, and the dimension of the inner diameter φR1 of the discharge port 27 can be configured to be about 1/3 of φR2, and thus is formed to be about 10 mm. Or it is good also considering the shape of the housing | casing 16 (16A) as a flat rectangular parallelepiped shape, as shown in FIG. In this case, the diameter dimension φ1 of the discharge port 27 can be about 10 mm, and the long side dimension L1 of the side surface on which the discharge port 27 is formed can be about 45 mm, and the short side dimension L2 can be about 20 mm. The material of the casings 16 and 16A is not particularly limited, but is made of a material that can maintain airtightness to some extent such as resin and metal so that the aroma component filled in the air quality component chamber 15 does not leak.

The air quality component releasing means 10 to 12 arranged in the vehicle interior 2 are controlled by the air quality component supply ECU 101 that operates based on signals from various devices. The air quality component supply ECU 101 performs various analyzes on the signals from the navigation ECU 110, the vehicle integrated ECU 120, the living body sensor 130, the CO ₂ concentration sensor 140 and / or the operation means 150, and releases the air cannon. Judgment of the type and amount of aromatic components to be contained in the gun, and the release conditions such as the release speed of the air cannon are determined (see FIG. 2).

  The air quality component supply ECU 101 controls the air quality component release means 10 to 12 based on the release conditions. This control includes, for example, control of the amount of the fragrance component stored in the fragrance component storage means 17A to 17C, and adjustment of the opening degree of the valves 18A to 18C constituting the transport means 21 for sending the fragrance component to the air quality component chamber 15. Control of the transport pump 19 and control of the air compression means 14.

  Further, the air quality component supply ECU 101 controls the magnitude of the compression force for compressing the air in the air quality component chamber 15 and the activation of the compression force with respect to the air compression means 14 of the air quality component release means 10-12. . For example, by controlling the magnitude of the compression force, it is controlled to which occupant the air cannon is released and how far the air cannon is delivered, and by controlling the activation of the compression force, the air cannon is continuously operated It is possible to control whether it is released periodically or intermittently with a predetermined time interval. In addition, as shown in FIG. 1, when a plurality of air quality component releasing means 10 to 12 are arranged in the vehicle interior 2, the air quality component releasing means to be activated is controlled.

  The navigation ECU 110 is a control unit of the navigation system, and provides at least basic functions of current position display, destination selection, route calculation, and route guidance to the occupant, as well as VICS (Vehicle Information and Communication System). Function that can acquire external information such as G-BOOK (content service that can be used from in-vehicle devices, registered trademark of Toyota Motor Corporation), Internet, etc. Also have. When the navigation ECU 110 obtains that the road is congested by VICS or G-BOOK, the navigation ECU 110 transmits the information to the air quality component supply ECU 101. In response to this, the air quality component supply ECU 101 assumes that the occupant, particularly the driver, becomes sleepy, and supplies the air quality component chamber 15 with the aroma component having awakening effect stored in the aroma component storage means 17A as the air quality component. It is controlled to send in and contain in the air cannon and release it to the driver. As a result, the driver can eliminate drowsiness or obtain an awakening effect by inhaling an aroma component having an awakening effect from the nose, and can prevent a drowsy driving.

  Further, when the air quality component supply ECU 101 obtains traffic jam information from the navigation ECU 110, the air quality component supply ECU 101 fills the aroma component storage means 17B as an air quality component on the assumption that the driver and other occupants are frustrated by the traffic jam. The fragrance component having a relaxing effect is sent to the air quality component chamber 15 to be contained in the air cannon and released toward the driver, thereby making the driver and other occupants feel relaxed. be able to.

  In addition, the air quality component supply ECU 101 may perform intermittent control of air cannon emission in which the air cannon is released for a predetermined time after the air cannon containing a predetermined amount of aroma component is released. By performing intermittent control under certain conditions in this manner, it is possible to promote olfactory recovery from the olfactory desensitization caused by excessive inhalation of the fragrance component, and to allow the occupant to sense even a small amount of the fragrance component.

  The vehicle integrated ECU 120 has a function of obtaining operation information of each functional component of the automobile 1 and communicating with the air quality component supply ECU 101. The operation information of each functional component includes, for example, vehicle speed information, brake information, inter-vehicle sensor information, steering angle information of the steering wheel, and window opening / closing information regarding the opening / closing state of the side window glass. The vehicle integrated ECU 120 transmits these pieces of information to the air quality component supply ECU 101.

  The air quality component supply ECU 101 recognizes information such as when the vehicle speed is equal to or lower than a predetermined value, the number of times of braking per unit time is equal to or higher than the predetermined value, or when the distance from the preceding vehicle by the inter-vehicle sensor is equal to or lower than the predetermined value. When it does, it considers that it is congested, and as mentioned above, the control which discharges toward the driver the air cannon containing the fragrance component with the awakening effect stored in the fragrance component generation means 17A. In order to give a relaxing effect, control is performed to release an air cannon containing a relaxing fragrance component stored in the fragrance component generating means 17B as an air quality component toward the driver.

  Further, when the vehicle integrated ECU 120 continuously obtains, for example, a value of 80 km or more as the vehicle speed information for a predetermined time or more, the air quality component supply ECU 101 assumes that the vehicle is traveling on a highway or the like and falls asleep. In order to prevent driving, a predetermined amount of the aroma component stored in the aroma component storage means 17A as an air quality component is sent to the air quality component chamber 15 and contained in the air quality component chamber 15 for the driver. Control to release.

  Further, when the vehicle integrated ECU 120 transmits to the air quality component supply ECU 101 that the window is opened as the window opening / closing information, the air quality component supply ECU 101 recognizes that the outside wind is blowing into the vehicle, and is predetermined. Interlock control is performed to stop the release of the air cannon until information is obtained that the time or window is closed. When the window is open, the outside wind is flying in the car 2. Therefore, even if the air cannon is released, it is difficult to diffuse the air cannon toward a predetermined occupant or space. Is.

  Further, based on the steering angle information received from the vehicle integrated ECU 120, if it is determined that the steering direction of the steering device is alternately continuous in the left-right direction, it is assumed that the vehicle is traveling on a continuous curve such as a saddle road, For the driver, a predetermined amount of aroma component having a relaxing effect, which is stored in the aroma component storage means 17B in order to relieve the tension state, is sent to the air quality component chamber 15 and contained in the air cannon. On the other hand, for the occupant, a predetermined amount of the fragrance component having an effect of preventing motion sickness, which is stored in the fragrance component generation means 17C as an air quality component in order to prevent motion sickness, The air quality component chamber 15 is fed into the air cannon so as to be contained in the air cannon and discharged toward the passenger.

  Further, when the vehicle integrated ECU 120 continuously obtains a value of 80 km or more, for example, for a predetermined time or longer, the air quality component supply ECU 101 considers that the vehicle is traveling on an expressway and prevents a drowsy driving. Therefore, the aroma component generating means 17 filled as the air quality component has a predetermined amount of the aroma component with awakening effect, the strong odor component, the fragrance component with high oxygen concentration, or the fragrance component containing cold air. Control is carried out by feeding into the component chamber 15, containing it in the air cannon and releasing it toward the driver.

  The biosensor 130 detects the occupant's biosignal and transmits it to the air quality component supply ECU 101. Examples of the biological signal detected from the occupant include heart rate information such as a heart rate per unit time measured by a heart rate sensor, pupil information such as the size of the occupant's pupil, and occupant brain wave information. When the heartbeat information, the pupil information, and / or the electroencephalogram information detected by the biometric sensor 130 is information that the occupant seems to be drowsy, the air quality component supply ECU 101 includes a plurality of air quality component supply ECUs 101 as described above. From the different fragrance components, a fragrance component having an arousal effect is selected and sent to the air quality component chamber 15 to release the air cannon containing the component. On the other hand, when the information is that the occupant seems to be in a tension state, the air quality component supply ECU 101 selects a fragrance component having a relaxing effect from a plurality of different fragrance components as described above, and air It is sent to the mass component chamber 15 and the air cannon containing the component is released.

The CO ₂ concentration sensor 140 is a sensor that detects the humidity of the air in the vehicle interior 2 and transmits the detected value to the air quality component supply ECU 101. Generally, when the CO ₂ concentration is set to 10,000 ppm or more, it is said that sleepiness is invited, and the air quality component supply ECU 101 determines whether the detected value is higher or lower than 10000 ppm. The air quality component supplying means 10 to 12 and the conveying means 21 are controlled as follows. When the detected value of the CO ₂ concentration sensor 140 is higher than 10000 ppm, it is considered that the driver may be drowsy, and the awakening effect stored in the fragrance component storage unit 17A by operating the transport unit 21 is obtained. The aroma component is transported to the air quality component chamber 15 and a voltage is applied to the air compression means 14 to release the air cannon to the driver. On the other hand, when the detected value is 10,000 ppm or less, the driver is considered to be in a normal state without drowsiness, and the conveying means 21 is configured to release an air cannon containing other fragrance components to the driver. And the air compression means 14 is operated. At this time, when a plurality of the CO ₂ concentration sensors 140 are arranged in the vehicle 2, an air cannon is released toward an occupant closest to the CO ₂ concentration sensor 140 that detects a predetermined value or more, or toward the space. In addition, a control process of starting an air quality component supply unit located closest to the CO ₂ concentration sensor 140 may be performed.

  The operation means 150 is for forcibly operating the vehicle air quality component releasing means when the occupant himself wishes to obtain the fragrance component. For example, the occupant of the instrument panel 70 is easy to operate. The place is configured in the form of a switch or button. The operation means 160 includes at least an operation selection switch (button) capable of selecting the operation or operation stop of the air quality component release means 10 to 12 and an aroma component selection switch (button) capable of selecting any one of the plurality of aroma components. have. The operation means 150 transmits a setting signal based on the set item to the air quality component supply ECU 101. Based on this, the air quality component supply ECU 101 operates the air quality component release means 10-12. Control.

  When the air quality component supply ECU 101 releases the air cannon containing the fragrance component selected according to the running state of the vehicle and the mental / physical state of the occupant as described above, the following intervals are used. Therefore, this is intermittently released.

  The air quality component supply ECU 101 operates a power supply circuit 155 (corresponding to voltage application means, see FIG. 9) having a booster circuit unit, and converts a DC voltage from the on-vehicle battery (voltage 12V) into a rectangular wave voltage. As shown in FIG. 10A, a rectangular wave voltage is applied to the coil 42 of the air compression means 14 a plurality of times. This rectangular wave voltage has, for example, an amplitude of 12 V, a voltage application time T1, and a voltage application interval T2. As a result, the air cannon is released to the occupant at a cycle (T1 + T2). The occupant can inhale the fragrance component released at a predetermined interval from the nose, and can get awakened or relaxed feeling by the fragrance component. In the present embodiment, T1 and T2 are 1 (second) and 3 (second), respectively.

  Here, it is known that the human olfaction causes so-called olfactory fatigue when the same air quality component is continuously inhaled and the sensitivity to the component decreases. Therefore, as a method of keeping the scent component perceived by the occupant, a method for increasing the amount of the scent component contained in the air cannon or a period for recovering the sense of smell by supplying the scent component intermittently is provided. A method is mentioned.

  In the method of increasing the amount of fragrance component, since a large amount of fragrance component is released into the vehicle, there is a risk of causing this to be detected by a passenger who does not need the fragrance component. This is not a useful method because there are concerns about this problem. On the other hand, the method of intermittently releasing a fragrance component is a useful method without having to worry about such a problem.

  FIG. 10B is a graph showing the olfactory sensitivity with respect to the voltage applied to the air compressing means 14. According to this, the olfactory sensation has a predetermined sensitivity at the initial stage of inhalation of the fragrance component and can sufficiently sense the fragrance component, while the sensitivity decreases when a predetermined time elapses from the start of inhalation. However, in this embodiment, since the air cannon is intermittently released, when the next air cannon is supplied by recovering the olfactory sensitivity while the discharge of the air cannon is stopped. The aromatic component contained in can be sufficiently sensed.

  It should be noted that the voltage application time and voltage application interval of the rectangular wave voltage can be set to arbitrary values, and in short, may be set to values that do not cause olfactory fatigue of the occupant.

  By the way, the reason why the voltage applied to the air compressing means 14 (14A) is a rectangular wave voltage includes a high frequency component as compared with, for example, a sine wave voltage. This is because the electromagnetic force can be generated in a short time and the compression member 22 can be deformed instantaneously. In addition, by applying a plurality of rectangular wave voltages as described above, a plurality of air cannons are released to the occupant, so even if there are some obstacles on the way, When one air cannon hits the occupant, the probability that the occupant senses the fragrance component can be improved.

  Further, the voltage of the in-vehicle battery may be boosted by the boosting circuit unit and applied to the air compression means 14. By setting the amplitude of the applied voltage to, for example, 16 V by the booster circuit unit, it is possible to increase the range of selection of the occupant who wants to supply the air cannon by increasing the transport distance of the air cannon.

  Thus, according to this embodiment, since the air cannon containing the fragrance component can be released to the individual occupants 3 and 4, the air cannon is reliably supplied to the occupant who needs the fragrance component. can do. In addition, since the air cannon is intermittently released, olfactory fatigue due to continuous inhalation of fragrance components can be prevented, and the scent sensation can be reliably given to the occupant.

  Further, a plurality of types of fragrance components are stored by the fragrance component storage means 17A to 17C, and an optimum fragrance component is selected based on the running state of the automobile 1, the mental state / body state of the occupants 3 and 4, and this is selected as the occupant 3 , 4 so that the comfort of each passenger can be improved.

  In addition, the operation means 160 is provided so that the passengers 3 and 4 can select whether to operate or stop the operation of the air quality component releasing means 10 to 12 and select the aroma component. Thereby, an optimal aroma component can be supplied at the timing which a passenger | crew desires.

(Second Embodiment)
A second embodiment of the present invention will be described with reference to FIGS. Note that the same parts as those in the first embodiment are denoted by the same reference numerals and redundant description is omitted, and description of the same operational effects is also omitted, and only differences are described.

  In the present embodiment, the discharge interval of the air cannon is controlled based on the random number output from the random number generation circuit 160. The random number generation circuit 160 generates a 1 / f random number whose output power spectrum is inversely proportional to the frequency f, and outputs the 1 / f random number to the air quality component supply ECU 101. Then, the air quality component supply ECU 101 intermittently applies a voltage to the air compression means 14 according to the random number output from the random number generation circuit 160 (see FIG. 11).

  Here, for example, assuming that the voltage application time of the rectangular wave voltage is T1, and the voltage application interval is T2, the value of T1 is associated with the value of T2. Then, since the frequency f (1 / (T1 + T2)) in each combination of the voltage application time T1 and the voltage application interval T2 is determined, the random number generator 160 satisfies the relationship that the power spectrum of each combination is 1 / f. Thus, a random number designating each combination is generated (see FIG. 12). Therefore, the air quality component supply ECU 101 operates the air compression means 14 at the voltage application time T1 and the voltage application interval T2 specified by the random number output of the random number generation circuit 160 (see FIG. 13).

  Thus, according to this embodiment, since the release of the air cannon is controlled to 1 / f fluctuation, a fresh and comfortable scent can be constantly given without causing olfactory fatigue.

  The random number generation circuit 160 may generate a random number with a fixed relationship (M series) regardless of the frequency.

It is the conceptual diagram which showed the vehicle interior arrangement | positioning of the air quality component discharge | release means in 1st Embodiment. It is the block diagram which showed the whole structure of the air quality component supply apparatus for vehicles. It is the conceptual diagram which showed the internal structure of the air quality component chamber and the air compression means. It is the perspective view which fractured | ruptured partially which showed the internal structure of the air quality component chamber and the air compression means. It is the conceptual diagram which showed the internal structure of the other example about an air quality component chamber and an air compression means. It is the perspective view which fractured | ruptured partially which showed the internal structure of the air quality component chamber and the air compression means. It is the perspective view which showed the modification of the housing | casing of an air quality component supply means. It is the perspective view which showed the modification of the housing | casing of an air quality component supply means. 3 is a circuit diagram showing a circuit configuration of a power supply circuit 155. FIG. (A) is the figure which showed the voltage waveform applied to the air compression means 14. FIG. (B) is a graph showing the olfactory sensitivity of the passenger. It is the conceptual diagram which showed the whole structure of the air quality component supply device for vehicles which concerns on 2nd Embodiment. It is a power spectrum figure of 1 / f random number. It is a time chart which shows the timing of a voltage application and a voltage application stop.

Explanation of symbols

2 ... Inside the vehicle 3, 4 ... Passenger 14, 14A ... Air compression means 15, 15A ... Air quality component chamber 16, 16A ... Housing 17A, 17B, 17C ... Fragrance component storage means 21 ... Conveyance means 22, 40 ... Compression member 23 , 41 ... Magnets 24, 42 ... Coil 110 ... Navigation ECU
120 ... Vehicle integrated ECU
130 ... biosensor 140 ... CO ₂ concentration sensor 150 ... operating unit 160 ... random number generator

Claims (12)

An air quality component supply device for a vehicle for supplying an air cannon to a passenger in a vehicle,
An air quality component chamber holding a predetermined fragrance component;
Air compression means for generating air cannons by compressing air in the fragrance component chamber, and for releasing the air cannon toward individual passengers;
An air quality component supply device for a vehicle, comprising: control means for intermittently driving the air compression means. Aroma component storage means for storing a plurality of aroma components;
Transport means for transporting the fragrance component stored in the fragrance component storage means to the air quality component supply chamber;
The control means estimates the state of the occupant and controls the operations of the transport means and the air compression means based on the estimation result, thereby providing a predetermined amount of fragrance to the occupant requiring the fragrance component 2. The air quality component supply device for a vehicle according to claim 1, wherein the air cannon containing the component is discharged at a predetermined timing. The air quality component chamber and the air compression means are configured in a housing,
The air compression means includes a compression member that changes the volume of the air quality component chamber by magnetic force and electromagnetic force, a coil provided in the compression member, and a magnet provided opposite to the compression member. The vehicular air quality component supply device according to claim 1 or 2, characterized in that The air quality component chamber and the air compression means are configured in a housing,
The air compression means includes a compression member that changes the volume of the air quality component chamber by magnetic force and electromagnetic force, a magnet provided in the compression member, and a coil provided opposite to the compression member. The vehicular air quality component supply device according to claim 1 or 2, characterized in that   The vehicle air quality component supply device according to claim 3 or 4, wherein the casing has a flat shape.   The vehicular air quality component supply device according to claim 3 or 4, wherein the casing has a cylindrical shape.   The vehicle air according to any one of claims 3 to 6, further comprising a voltage applying unit that operates based on the control of the control unit and applies a rectangular wave voltage to the coil. Quality component supply device.   8. The vehicular air quality component supply according to claim 7, wherein the voltage application means includes a booster circuit that boosts a power supply voltage of an in-vehicle power supply, and applies an output voltage of the booster circuit to the coil. apparatus.   The said control means controls operation | movement of the said conveyance means and the said air compression means based on the signal from navigation ECU or / and vehicle integration ECU, The Claim 2 thru | or 8 characterized by the above-mentioned. Air quality component supply device for vehicles.   The said control means controls the operation | movement of the said conveyance means and the said air compression means based on the detection data of the biosensor which detects the said occupant's biosignal. The air quality component supply apparatus for vehicles as described. A CO ₂ concentration sensor that detects the CO ₂ concentration of the air inside the vehicle is provided.
When the detected value of the CO ₂ concentration sensor is equal to or greater than a predetermined value, the control means sends a fragrance component having an arousal effect among the fragrance components stored in the fragrance component storage means to the air quality component chamber. The vehicle air quality component supply device according to any one of claims 2 to 10, wherein the conveying means is operated so as to be conveyed, and the air compressing means is operated.   The vehicle air according to any one of claims 2 to 11, wherein the control means controls operations of the conveying means and the air compressing means based on a random number output from a random number generation circuit. Quality component supply device.

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