JP2019167055A - Internal environment adjustment device, vehicle including the same and internal environment adjustment method - Google Patents

Abstract

To provide an internal environment adjustment device that can maintain and improve a state of health of an occupant.SOLUTION: An internal environment adjustment device 1 for adjusting an internal environment of a cabin C of a vehicle V includes a control unit ECU that adjusts an internal oxygen concentration of the cabin C to be a high concentration relative to the atmosphere using oxygen enrichment air that is generated by an oxygen enrichment mechanism 21.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an internal environment adjustment device for adjusting the indoor environment of a moving body, a vehicle including the same, and an internal environment adjustment method.

  2. Description of the Related Art Conventionally, there is a device that adjusts an indoor environment where a passenger is present when driving a vehicle and suppresses the influence of the environment on the physical condition of the passenger. As this type of device, by adjusting the amount of outside air introduced into the room from the outside of the vehicle, the atmospheric pressure in the room is kept within a predetermined range and the deterioration of the physical condition of the passenger due to the fluctuation of the atmospheric pressure is suppressed. Is known (see, for example, Patent Document 1).

JP-A-9-226355

  However, the device described in Patent Document 1 is merely a device that can suppress the influence caused by fluctuations in atmospheric pressure accompanying the movement of the vehicle so as not to impair the health condition of the passenger. For this reason, it has not been possible to give a new added value to the vehicle by using this device, such as actively maintaining and improving the health of the passenger even in a situation without movement.

  The present invention has been made in view of the above points, and provides an internal environment adjustment device capable of maintaining and improving the health condition of a passenger, a vehicle including the same, and an internal environment adjustment method The purpose is to do.

The internal environment adjusting device of the present invention is
An internal environment adjusting device for adjusting the indoor environment of a moving object,
An environment adjustment unit that adjusts the oxygen concentration in the room to be higher than the atmosphere is provided.

  In general, it is known that when oxygen is sufficiently taken into the body, an effect of maintaining and improving health is obtained. Here, “maintenance / improvement of health” includes suppression and recovery of fatigue due to driving, etc., suppression of drowsiness, recovery of injury, diet effect, decomposition of lactic acid, improvement of memory, improvement of skin condition, etc. It is. It is also known that it is effective to increase the oxygen concentration of the gas present around the subject in order to sufficiently take in oxygen.

  However, when oxygen is taken into the body from the respiratory organs, the amount of oxygen taken in (bound oxygen amount) depends on the amount of hemoglobin in the blood to which oxygen binds, so depending on the amount of hemoglobin, the amount of oxygen supplied There was a possibility that oxygen could not be taken into the body sufficiently even if increased. In this case, oxygen is difficult to reach to the end of the capillary blood vessel thinner than hemoglobin, and even if the amount of bound oxygen is increased, a sufficient effect may not be obtained.

  On the other hand, as a result of earnest research, the present inventors have found that the amount of dissolved oxygen taken into the blood of the subject can be increased by increasing the oxygen concentration of the gas present around the subject. Obtained.

  Therefore, in the internal environment adjustment device of the present invention, the indoor environment (gas state) is adjusted so that the oxygen concentration is higher than that of the atmosphere.

  As a result, the mobile body equipped with this internal environment adjusting device can realize an environment in which oxygen can be easily taken into the body effectively, so that dissolved oxygen can be supplied to the end of the human body. It is possible to maintain and improve the health status of passengers simply by spending time at the airport. As a result, a new added value other than a simple moving means can be given to the moving body as a means for maintaining and improving the health state.

Moreover, in the internal environment adjusting device of the present invention,
A passenger recognition unit for recognizing presence or absence of a passenger in the room;
The environment adjustment unit preferably adjusts the oxygen concentration in the room to be higher than the atmosphere when the passenger is in the room.

  This configuration prevents the occurrence of a difference between the indoor environment in an unattended state and the environment outside the moving body, so that a phenomenon caused by the difference in the environment (for example, occurrence of tinnitus, opening / closing of a door) Occurrence of force necessary for operation) can be suppressed, and it is possible to make it difficult for the passenger to feel uncomfortable during boarding.

  Moreover, even when an auto start function or the like that adjusts the indoor environment by starting an air conditioner or the like before the passenger enters the vehicle is prevented from excessively adjusting the indoor environment. Therefore, waste of energy for adjusting the indoor environment can be prevented.

Further, in the internal environment adjustment device of the present invention, in the case of a configuration that recognizes the presence or absence of a passenger in the room,
The passenger recognition unit recognizes the number of passengers,
Preferably, the environment adjustment unit adjusts the oxygen supply amount in the room based on the recognized number of passengers so as to adjust the oxygen concentration in the room to be higher than the atmosphere. .

  In order to adjust the indoor environment, the degree of fluctuation of the indoor environment (especially oxygen concentration) is greatly influenced by the number of passengers in the room (that is, the amount of oxygen consumed by the passenger's breathing). It is necessary to consider the amount of oxygen consumed. Therefore, in this way, the indoor oxygen supply amount is based on the number of passengers (that is, after predicting the amount of oxygen consumed and calculating the oxygen supply amount that supplements the consumption amount), If it adjusts, it will become easy to make a gas state into a desired state.

Moreover, in the internal environment adjusting device of the present invention,
A health condition recognition unit that recognizes the health condition of the passenger,
The environment adjustment unit preferably adjusts the oxygen concentration in the room to be higher than the atmosphere when the recognized health condition of the occupant is a predetermined health condition.

  Here, the “predetermined health condition” refers to a health condition in which it is determined that improvement / improvement of the health condition is necessary. For example, it refers to a health condition in which the recognized degree of fatigue or sleepiness of the occupant exceeds a threshold value. The criterion for determining whether or not a predetermined health condition is present may be set as appropriate.

  If comprised in this way, it will become possible to supply oxygen efficiently only to the timing which needs maintenance and improvement of a healthy state with respect to a passenger. As a result, excessive adjustment of the indoor environment is prevented, so that waste of energy for adjusting the indoor environment can be prevented.

Moreover, in the internal environment adjustment device of the present invention, in the case of a configuration that recognizes the health condition of the passenger,
The health condition recognition unit preferably recognizes the health condition of the passenger based on the biological information of the passenger transmitted from the portable information terminal.

  With this configuration, it is possible to refer not only to the state when boarding the mobile body but also to the biological information before boarding the mobile body, so that the health condition of the passenger can be more appropriately recognized. Become. As a result, an appropriate indoor environment can be set for the passenger, which makes it easier to maintain and improve the health condition.

  Here, the “portable information terminal” is a mobile phone, a wearable terminal, a laptop computer, etc. that can acquire information related to the health condition of the passenger outside the mobile body, and for the internal environment adjustment device, What is necessary is just to have a communication function which can transmit the information which concerns on a passenger's health condition.

  In addition, the “health condition recognition unit” may automatically input and set the passenger himself / herself in addition to automatically recognizing the passenger's health condition.

  It is preferable that the environment adjustment unit adjusts the internal air pressure, which is the indoor air pressure, to be positive with respect to the external air pressure, which is the air pressure around the moving body.

  As a result of further earnest research, the present inventor not only increases the oxygen concentration of the gas existing around the subject, but also makes the atmospheric pressure by the gas existing around the subject positive with respect to the atmospheric pressure. The present inventors have found that the amount of dissolved oxygen taken into the subject's body can be effectively increased. For example, it has been found that when the oxygen concentration is 20% or more and 40% or less, it is particularly preferable that the atmospheric pressure be 1.1 to 2 atm.

  Thus, in this way, not only the indoor oxygen concentration is made higher than the atmosphere, but also the internal atmospheric pressure, which is the atmospheric pressure, is positive with respect to the external atmospheric pressure, which is the atmospheric pressure around the moving body. If adjusted, the amount of dissolved oxygen taken into the body can be increased, so that the health condition of the passenger can be more effectively maintained and improved.

Moreover, as an internal environment adjusting device of the present invention,
An oxygen-enriching mechanism that generates oxygen-enriched air; and a flow rate control valve that adjusts the supply amount of the oxygen-enriched air from the oxygen-enriched mechanism into the room,
The environment adjusting unit adjusts the supply amount of the oxygen-enriched air into the room by adjusting the opening of the flow control valve so that the oxygen concentration in the room becomes higher than the atmosphere. You may comprise so that it may adjust to.

Further, in the internal environment adjustment device of the present invention, in the case of a configuration that generates oxygen-enriched air with an oxygen-enriching mechanism,
An outside air pressurizing mechanism for pressurizing outside air introduced from the outside of the moving body;
The oxygen enrichment mechanism preferably generates oxygen enriched air using the pressurized outside air.

  In general, it is known that when oxygen-enriched air is generated by using pressurized air, the generation efficiency of oxygen-enriched air is improved. Therefore, with this configuration, the energy required to generate oxygen-enriched air can be reduced.

The vehicle of the present invention is
One of the internal environment adjusting devices described above is mounted.

  The vehicle configured as described above can be used as a health condition maintaining / improving means, and thus has a new added value other than a simple moving means.

In the vehicle of the present invention,
An internal combustion engine,
The internal environment adjustment device has an oxygen enrichment mechanism that generates oxygen enriched air,
The environment adjusting unit preferably supplies the generated oxygen-enriched air to the room and the internal combustion engine.

Since an oxygen enrichment mechanism that generates oxygen enriched air is relatively expensive, when installed in a vehicle, the manufacturing cost of the vehicle will increase. Thus, when the oxygen enrichment mechanism is used not only to adjust the indoor environment but also to intake air into the internal combustion engine, it not only improves the health of the passenger and recovers from fatigue, but also improves fuel efficiency and exhausts. The effect of reducing NO _x , CO ₂ , HC and the like can be produced.

  As a result, it is possible to provide a vehicle with high added value that is friendly to the environment and reduces resource consumption by reducing the running cost of the vehicle as a whole. Product value can be provided.

Moreover, the internal environment adjustment method of the present invention includes:
An internal environment adjustment method for adjusting the indoor environment of a moving object,
A step of adjusting the oxygen concentration in the room so as to be high with respect to the atmosphere is provided.

Explanatory drawing which shows typically the structure of the internal environment adjustment apparatus of the vehicle which concerns on embodiment. Explanatory drawing which shows typically the sensor mounted in the vehicle of FIG. The block diagram which shows the structure of the internal environment adjustment apparatus of the vehicle of FIG. The flowchart which shows the process which the control part of the vehicle of FIG. 1 performs. The graph which shows the fluctuation | variation of the internal pressure with respect to the external pressure of the vehicle of FIG.

  First, prior to specific description of the vehicle according to the present embodiment, a concept related to vehicle development / design according to the present invention will be described.

  In general, it is known that when oxygen is sufficiently taken into the body, an effect of maintaining and improving health is obtained. Here, “maintenance / improvement of health” includes suppression and recovery of fatigue due to driving, etc., suppression of drowsiness, recovery of injury, diet effect, decomposition of lactic acid, improvement of memory, improvement of skin condition, etc. It is.

  However, when oxygen is taken into the body from the respiratory organs, the amount of oxygen taken in (bound oxygen amount) depends on the amount of hemoglobin in the blood to which oxygen binds, so depending on the amount of hemoglobin, the amount of oxygen supplied There was a possibility that oxygen could not be taken into the body sufficiently even if increased. In this case, oxygen is difficult to reach to the end of the capillary blood vessel thinner than hemoglobin, and even if the bound oxygen is increased, a sufficient effect may not be obtained.

  On the other hand, as a result of earnest research, the present inventor has increased the oxygen concentration of the gas existing around the subject, or made the atmospheric pressure by the gas positive with respect to atmospheric pressure, or both of them. It was found that the amount of dissolved oxygen taken into the subject's body can be increased by satisfying the condition. Further, in order to increase the amount of dissolved oxygen in the human body, it has been found that the oxygen concentration in the atmosphere is particularly preferably 20% or more and 40% or less, and the atmospheric pressure is particularly preferably 1.1 atmospheres or more and 2 atmospheres or less. It was.

In addition, conventionally, by supplying oxygen-enriched air to an internal combustion engine such as an engine, combustion efficiency is improved, fuel efficiency is improved, and exhausted NO _x , CO ₂ , HC, and the like are reduced. It is known that it can be.

Therefore, the present inventor referred to as a means for maintaining / improving health conditions in addition to the added value of improving fuel efficiency and reducing NO _x , CO ₂ , HC, etc. that are conventionally known for vehicles. Based on the concept of giving new added value, the vehicle according to the present invention was developed and designed based on the concept.

  Note that the moving body on which the internal environment adjusting device of the present invention is mounted is not limited to a vehicle, and is a room in which a passenger (including a passenger such as a driver as well as a passenger other than a passenger) gets in. If there is something. Therefore, the mobile body of the present invention includes special vehicles such as work machines, trains, ships, airplanes, and the like in addition to the general passenger cars exemplified in the following embodiments.

  Hereinafter, with reference to the drawings, a vehicle V equipped with the internal environment adjustment device 1 according to the embodiment will be described.

  First, with reference to FIG.1 and FIG.2, schematic structure of the vehicle V of this embodiment is demonstrated.

  As shown in FIGS. 1 and 2, the vehicle V includes a passenger compartment P in which a passenger P is present when moving. The vehicle V is provided with various sensors for detecting the state of the engine ENG, the state of the passenger P, and the environment inside and outside the passenger compartment C.

  As shown in FIG. 1, the cabin C is provided with a plurality of air conditioner outlets 10 and pressure release valves 11 (displacement adjustment mechanisms) in order to adjust the interior (indoor) environment of the cabin C. Yes.

  Here, the “environment” inside the passenger compartment C refers to the state of the gas inside the passenger compartment C. Specifically, the internal air pressure that is the atmospheric pressure inside the passenger compartment C and the interior of the passenger compartment C This refers to the oxygen concentration of the internal air. Further, the “state” of the passenger P indicates the presence / absence of the passenger P, the number of persons, the health condition, and the like. “Health state” refers to the degree of fatigue, the degree of sleepiness, and the like.

  The air conditioner outlet 10 is provided at various locations inside the passenger compartment C, and supplies oxygen-enriched air, which will be described later, to the interior of the passenger compartment C based on a signal from a control unit ECU, which will be described later.

  The pressure release valve 11 (exhaust amount adjusting mechanism) is configured to allow communication between the inside and the outside of the passenger compartment C. The opening degree of the pressure release valve 11 (and hence the exhaust amount of air from the inside of the passenger compartment C) is adjusted based on a signal from the control unit ECU described later.

  In the vehicle V, the internal pressure of the passenger compartment C is adjusted by adjusting the amount of oxygen-enriched air introduced into the passenger compartment C from the air conditioner outlet 10 and the opening degree of the pressure release valve 11. Is called.

Further, the vehicle V includes a drive mechanism including an engine E (internal combustion engine) as a drive source as a mechanism for driving the vehicle V and a mechanism for adjusting the environment of the passenger compartment C; An air introduction hole 20 for introducing outside air from the outside, an oxygen enrichment mechanism 21 that generates oxygen-enriched air using a part of the introduced outside air, and another part of the introduced outside air as a refrigerant Cooling mechanism 22, compressor 23 for pressurizing the introduced outside air and oxygen-enriched air (outside air pressurizing mechanism, oxygen-enriched air pressurizing mechanism), tank 24 for storing oxygen-enriched air, and a sensor to be described later And a control unit ECU for controlling each mechanism based on the detection result of the class.

  The oxygen enrichment mechanism 21 is a PSA (Pressure Swing Adsorption) type (adsorption) oxygen enrichment mechanism. The oxygen enrichment mechanism 21 repeats pressurization and decompression of the outside air introduced from the air introduction hole 20 inside a cylinder containing a special zeolite having a function of adsorbing nitrogen, and oxygen contained in the outside air. Oxygen-enriched air is produced by separating nitrogen and nitrogen. As the zeolite, for example, one formed of silica, alumina or the like is used.

  Part of the oxygen-enriched air generated by the oxygen enrichment mechanism 21 is supplied to the air conditioner outlet 10 via the indoor supply path 25 and is introduced into the passenger compartment C via the air conditioner outlet 10. The The oxygen-enriched air thus introduced is used for adjusting the oxygen concentration inside the passenger compartment C and the internal pressure.

  The amount of oxygen-enriched air introduced into the passenger compartment C is controlled by a first flow rate control valve 25 a provided in the indoor supply path 25. The first flow control valve 25a is controlled by the control unit ECU.

  The other part of the generated oxygen-enriched air is stored in the tank 24 via the intake air supply passage 26 and is introduced into the engine ENG at a predetermined timing. Specifically, oxygen-enriched air is introduced into the combustion chamber inside the engine ENG via an intake manifold (not shown) of the engine ENG, a supercharger (not shown), and the like.

  The amount of oxygen-enriched air stored in the tank 24 and the amount of oxygen-enriched air introduced into the engine ENG are controlled by a second flow rate control valve 26 a provided in the intake air supply path 26. The second flow rate control valve 26a is controlled by the control unit ECU.

  In the present embodiment, a PSA-type oxygen enrichment mechanism that easily generates high-concentration oxygen-enriched air is used. However, the oxygen enrichment mechanism of the present invention only needs to be capable of generating oxygen enriched air.

  For example, a PVSA (Pressure Vacuum Swing Adsorption) type may be added to the oxygen enrichment mechanism 21 by further adding a vacuum pump for removing air inside a container containing zeolite. In the case of such a PVSA type, regeneration of zeolite is more efficiently promoted than that of the PSA type, so that the ability to generate oxygen-enriched air is further increased.

  Further, for example, an oxygen enrichment type oxygen enrichment mechanism may be used. In the oxygen-enriched membrane type oxygen-enriching mechanism, oxygen-enriched air is generated by passing air through an oxygen-enriched membrane that can transmit more oxygen than nitrogen. As the oxygen-enriched film, for example, a film formed of silicon or the like is used. The oxygen-enriched membrane type oxygen enrichment mechanism is inferior to the PSA type in terms of performance to improve the oxygen concentration, but is advantageous in terms of silence, size, and power consumption.

  The cooling mechanism 22 uses the introduced outside air to adjust the temperature of the air introduced into the passenger compartment C, as well as the cooling of the engine ENG and the temperature of the oxygen enrichment mechanism 21 (specifically, zeolite). Also make adjustments.

  The compressor 23 (outside air pressurization mechanism, oxygen-enriched air pressurization mechanism) is introduced from the air introduction hole 20 to pressurize the external air and introduces it into the oxygen enrichment mechanism 21 and the cooling mechanism 22. This is because the air introduced into the oxygen enrichment mechanism 21 and the cooling mechanism 22 is pressurized, thereby improving the generation efficiency of the oxygen enriched air in the oxygen enrichment mechanism 21 and the cooling efficiency in the cooling mechanism 22. This is to make it happen.

  Further, a bypass passage 27 is provided from the compressor 23 to the indoor supply passage 25 through which the oxygen-enriched air generated by the oxygen enrichment mechanism 21 passes. Thereby, the generated oxygen-enriched air and the pressurized outside air are mixed. As a result, not only the oxygen concentration is higher than the atmosphere but also pressurized air is introduced into the interior of the passenger compartment C.

  This is because the air pressure introduced into the interior of the passenger compartment C is pressurized, so that the internal pressure in the passenger compartment C can be easily adjusted as compared to the case of introducing non-pressurized air. is there.

  The oxygen concentration of air introduced into the passenger compartment C and the degree of pressurization (specifically, the supply amount from the compressor 23 to the oxygen enrichment mechanism 21 and the cooling mechanism 22 and the supply amount to the bypass passage 27) Controlled by the control unit ECU.

  In the present invention, it is not always necessary to use a compressor as the outside air pressurizing mechanism and the oxygen-enriched air pressurizing mechanism, and any mechanism other than the compressor may be used as long as it is a known mechanism capable of pressurizing air. Also good. In addition, when the generation capacity of the oxygen enrichment mechanism is sufficiently high, or when the air blowing capacity of the air conditioner including the air conditioner outlet 10 is sufficiently high, the air need not be pressurized. The enriched air pressurizing mechanism may be omitted.

  As shown in FIG. 2, the vehicle V is provided with a plurality of sensors for detecting the environment inside and outside the vehicle V.

  Specifically, the vehicle V includes, as sensors for detecting the state of the engine ENG, an ENG rotational speed sensor 30 that detects the rotational speed of the engine ENG, an ENG temperature sensor 31 that detects the temperature of the engine ENG, and an accelerator. And an AP opening sensor 32 for detecting the opening of the pedal.

  In addition, the vehicle V has a camera 40 that captures the interior of the passenger compartment C, a brain wave sensor 41 that detects a brain wave of the passenger P, and a pulse of the passenger P as sensors for detecting the state of the passenger P. A pulse sensor 42 for detecting and a respiratory pulse sensor 43 for detecting a respiratory beat of the passenger P are provided.

The vehicle V is a sensor for detecting the environment inside the passenger compartment C, and an O ₂ sensor 50 that detects oxygen inside the passenger compartment C and CO ₂ that detects carbon dioxide inside the passenger compartment C. A sensor 51, an internal air pressure sensor 52 that detects an internal air pressure that is an air pressure inside the passenger compartment C, and a door sensor 53 that detects an open / closed state of a door or window (not shown) are provided.

  Further, the vehicle V includes an external atmospheric pressure sensor 60 that detects an atmospheric pressure around the vehicle V as a sensor for detecting an environment outside the vehicle V.

  The detection results of these sensors are transmitted to the control unit ECU. The control unit ECU is configured by one or a plurality of electronic circuit units including a CPU, a RAM, a ROM, an interface circuit, and the like.

  As shown in FIG. 3, the control unit ECU includes a passenger recognition unit 70, a health state recognition unit 71, an open state recognition unit 72, and a running state as functions realized by the implemented hardware configuration or program. A recognizing unit 73, an oxygen concentration recognizing unit 74, an internal air pressure recognizing unit 75, an external air pressure recognizing unit 76, and an environment adjusting unit 77 are provided. Processing by each of these functional units is executed sequentially.

  In the vehicle V, a passenger recognition unit 70, a health state recognition unit 71, an open state recognition unit 72, a travel state recognition unit 73, an oxygen concentration recognition unit 74, an internal pressure recognition unit 75, and an external pressure recognition unit. 76, the environment adjusting unit 77 determines whether the environment inside the passenger compartment C is inside (that is, the gas flowing into the passenger compartment C) based on the state of the passenger P recognized by the operator 76 and the environment inside and outside the vehicle V. Supply amount) and the supply amount of oxygen-enriched air to the engine ENG.

  The occupant recognition unit 70 recognizes the presence or absence of the occupant P inside the passenger compartment C based on the signal from the camera 40. When it is recognized that the passenger P does not exist inside the passenger compartment C, the environment adjusting unit 77 does not adjust the environment inside the passenger compartment C.

  Thereby, in the vehicle V, occurrence of a difference between the environment inside the passenger compartment C and the environment outside the vehicle V in an unmanned state is prevented, so that a phenomenon caused by the difference in the environment (for example, when boarding) The occurrence of tinnitus and fluctuations in the force necessary for opening and closing the door) is suppressed, and it is difficult for the passenger P to feel uncomfortable during boarding.

  In addition, although not adopted in the vehicle V, in the case of adopting an auto start function or the like that adjusts the indoor environment before the passenger gets in, the indoor environment is thus determined based on the presence or absence of the passenger. By starting the adjustment, it is possible to prevent excessive adjustment of the indoor environment. Thereby, even if the auto start function is employed, it is possible to prevent waste of energy for adjusting the indoor environment.

  Further, the passenger recognition unit 70 recognizes the number of passengers P inside the passenger compartment C based on a signal from the camera 40. The environment adjustment unit 77 determines how much the environment inside the passenger compartment C is adjusted based on the number of recognized passengers P.

  This is because the degree of environmental fluctuation (in particular, fluctuation of oxygen concentration) in the passenger compartment C is the number of passengers P inside the passenger compartment C, that is, the amount of oxygen consumed by the passengers P's breathing). This is because the amount of consumed oxygen must be taken into consideration in order to adjust the indoor environment.

  Here, the occupant recognition unit of the present invention is not limited to one that recognizes the occupant based on the signal from the camera, but detects an existing occupant recognition method (for example, the weight or movement of the seat). A passenger may be recognized based on a method, a method of detecting use of a seat belt, or a method of combining them.

  As a method for adjusting the interior of the passenger compartment C based on the number of passengers P, for example, referring to a data table set in advance from the number of passengers P, the oxygen per hour in the passenger compartment P A method of estimating the amount of reduction and determining the amount of oxygen-enriched air supplied to the interior of the passenger compartment C based on the amount of reduction is included.

  The health condition recognition unit 71 boarding based on the signals from the camera 40, the brain wave sensor 41, the pulse sensor 42, and the respiratory pulse sensor 43, and the biological information acquired through the portable information terminal 80 of the passenger P. Recognize the health status of the person P. For example, it is recognized based on a signal from the camera 40 whether the passenger P is sleeping or is drowsy.

  Then, the environment adjustment unit 77 determines whether or not to adjust the environment inside the passenger compartment C based on whether or not the recognized health state of the passenger P is a predetermined health state, and to what extent. Determine whether to make adjustments.

  Here, the “predetermined health condition” refers to a health condition in which it is determined that improvement / improvement of the health condition is necessary. For example, it refers to a health state in which the recognized degree of fatigue or sleepiness of the passenger P exceeds a threshold value. The criteria for determining whether or not the vehicle is in a predetermined health state may be appropriately set by the designer of the vehicle V.

  In addition, as described above, the health condition recognition unit of the present invention may be one that the passenger P himself / herself inputs and sets as appropriate, in addition to automatically recognizing the health condition of the passenger P.

  Depending on the health condition of the passenger P, the maintenance / improvement of the health condition by the oxygen-enriched air may not be necessary, but conversely, the demand for it may increase.

  Therefore, the adjustment of the environment inside the passenger compartment C and the adjustment of the supply amount of the oxygen-enriched air to the engine ENG are performed based on the health condition of the passenger (that is, the timing when the health condition needs to be maintained / improved (Limited to).

  Thereby, oxygen-enriched air can be used at an appropriate timing for the passenger P. In addition, since excessive adjustment of the environment inside the passenger compartment C is prevented, waste of energy for adjusting the environment inside the passenger compartment C can be prevented.

  In the vehicle V of the present embodiment, the health condition recognition unit 71 recognizes the health condition of the passenger P with reference to the biological information transmitted from the portable information terminal of the passenger P. This is because the health status of the passenger P is appropriately determined by recognizing the health status of the passenger P with reference to the status before boarding the vehicle V as well as the status when the vehicle V is boarded. (As a result, an appropriate environment inside the passenger compartment C is set for the passenger P), and the health condition is effectively maintained and improved.

  Here, the “portable information terminal” is a mobile phone, a wearable terminal, a laptop computer, or the like that can acquire information related to the health condition of the passenger P outside the vehicle V, and the health condition recognition unit 71 Any communication function that can transmit information related to the health status of the passenger is acceptable.

  However, the internal environment adjustment device of the present invention is not limited to such a configuration, and the health condition of the passenger may be recognized only by signals detected by sensors mounted on the vehicle. In addition, the health condition of the occupant may be recognized based only on the biometric information transmitted from the portable information terminal.

  Based on the signal from the door sensor 53, the open state recognition unit 72 recognizes whether at least one of a window and a door (not shown) of the vehicle V is open. When the open state recognizing unit 72 recognizes that at least one of the window and the door is open, the environment adjusting unit 77 adjusts the environment inside the passenger compartment C (particularly, the internal pressure). Not performed.

  This is because when at least one of the window and the door is open, the airtightness of the interior of the passenger compartment C becomes extremely low. Therefore, a large amount of energy is required to adjust the internal pressure of the passenger compartment C. This is necessary.

  The traveling state recognition unit 73 recognizes the traveling state of the vehicle V based on signals from the ENG rotation speed sensor 30, the ENG temperature sensor 31, and the AP opening degree sensor 32. The environment adjustment unit 77 adjusts the supply amount of oxygen-enriched air to the interior of the vehicle compartment C and the engine ENG according to the recognized running state of the vehicle V.

  Specifically, the engine ENG is in a low temperature driving (starting) state where the temperature is lower than a predetermined temperature, the engine ENG has a higher rotational speed than the predetermined rotational speed, and the engine ENG has a load higher than the predetermined load. In the case of at least one of the high rotation and high load states, the supply amount of the oxygen-enriched air to the engine ENG is made larger than the supply amount of the oxygen-enriched air to the inside of the passenger compartment C.

  This is because when the engine ENG is at least one of a low temperature driving (starting) state and a high rotation high load state, the intake air amount and fuel injection supplied to the engine ENG to generate the necessary torque Since the air-fuel ratio rich control for increasing the amount is generally performed, the fuel efficiency tends to be temporarily deteriorated.

  In this case, in this case, the vehicle V supplies a large amount of oxygen-enriched air to the internal combustion engine to improve combustion and prevent deterioration of fuel consumption, and to reduce early warm-up and emissions. Yes.

  Further, for example, when the engine ENG has a higher rotational speed than the predetermined rotational speed and the engine ENG is in a high rotational speed and low load state lower than the predetermined load, the oxygen-enriched air is sent to the engine ENG. The supply amount to the inside of the passenger compartment C is made larger than the supply amount.

  This is because when the engine ENG is in a high rotation and low load state, the torque applied to the engine ENG is low, so the fuel consumption can be further improved by increasing the intake air amount and promoting lean combustion. is there.

  Further, in such a case, if a part of the oxygen-enriched air generated inside the passenger compartment C is supplied, the oxygen-enriched air is supplied to the passenger compartment while maintaining a state in which combustion is improved and fuel efficiency is improved. This is because it can be used to maintain and improve the health condition of the passenger P inside C.

  Here, the “load” of the engine ENG is a value determined by the required torque and the required intake air amount. The values of “predetermined temperature”, “predetermined number of revolutions”, and “predetermined load” are appropriately set according to the performance of the components of the vehicle V including the engine ENG and the like.

  The traveling state recognition unit 73 also recognizes whether or not the vehicle V has stopped. When the traveling state recognition unit 73 recognizes that the vehicle V has been stopped, the environment adjustment unit 77 opens the pressure release valve 11 and starts exhausting the air inside the passenger compartment C.

  Here, the “stopped state” refers to a state in which the possibility of opening and closing the door is high, such as a state in which driving of the engine is stopped or a state in which the movement of the moving body is stopped for a predetermined time or more.

  When the vehicle V is stopped, it is considered that the passenger P is likely to open the door thereafter. Therefore, the vehicle V is configured to bring the internal air pressure in the passenger compartment C close to the external air pressure around the vehicle V in preparation for opening the door when it is recognized that the vehicle V has stopped. . Thereby, it is suppressed that a door is opened violently by the atmospheric | air pressure difference of the internal atmospheric pressure of the vehicle interior C, and the external atmospheric pressure around the vehicle V. FIG.

The oxygen concentration recognition unit 74 recognizes the oxygen concentration inside the passenger compartment C based on signals from the O ₂ sensor 50 and the CO ₂ sensor 51. Further, the internal air pressure recognition unit 75 recognizes the internal air pressure, which is the air pressure inside the passenger compartment C, based on the signal from the internal air pressure sensor 52. Further, the external air pressure recognition unit 76 recognizes the external air pressure that is the atmospheric pressure around the vehicle V based on a signal from the external air pressure sensor 60.

  Based on the recognized state of the passenger P and the environment inside and outside the vehicle V, the environment adjustment unit 77 determines the environment inside the passenger compartment C (that is, the state of gas. Specifically, the oxygen concentration And the supply pressure of oxygen-enriched air to the engine ENG.

  Specifically, the environment adjustment unit 77 generates the oxygen-enriched air generated by the oxygen-enriching mechanism 21, the temperature of the oxygen-enriched air generated by the cooling mechanism 22, and the degree of pressurization of the oxygen-enriched air and outside air by the compressor 23. , The supply amount of oxygen-enriched air to the interior of the passenger compartment C by the first flow control valve 25a and the air conditioner outlet 10, the supply amount of oxygen-enriched air to the engine ENG by the second flow control valve 26a, and the pressure The amount of air exhausted from the interior of the passenger compartment C is adjusted by the release valve 11.

  In the vehicle V of the present embodiment, the passenger recognition unit 70, the health state recognition unit 71, the open state recognition unit 72, the traveling state recognition unit 73, the oxygen concentration recognition unit 74, the internal pressure recognition unit 75, and the external pressure Based on the signal from the recognition unit 76, the environment adjustment unit 77 adjusts the environment inside the passenger compartment C.

  However, the internal environment adjusting device of the present invention is not necessarily limited to such a configuration. For example, when it is configured to adjust the environment inside the passenger compartment and the supply amount of oxygen-enriched air to the internal combustion engine based on a predetermined setting when the vehicle is driven, Any one or all of the person recognition unit, the health state recognition unit, the open state recognition unit, the running state recognition unit, the oxygen concentration recognition unit, the internal air pressure recognition unit, and the external air pressure recognition unit may be omitted. .

  In the vehicle V, the above-described sensors, control unit ECU (and its respective functional units), oxygen enrichment mechanism 21, cooling mechanism 22, compressor 23, first flow control valve 25a, second flow control valve 26a, air conditioner blowout The internal environment adjusting device 1 is configured by the port 10 and the pressure release valve 11.

  In the vehicle V, the environment inside the passenger compartment C and the engine ENG are enriched with oxygen from the time when the engine ENG of the vehicle V is driven by the internal environment adjustment device 1 or the movement of the vehicle V is started. The process for adjusting the supply amount of the chemical air is started.

  Next, with reference to FIGS. 3 to 5, processing (internal environment adjustment method) performed by each function unit of the control unit ECU of the internal environment adjustment device 1 for adjusting the environment inside the passenger compartment C will be described. To do. FIG. 4 is a flowchart illustrating a process performed by the control unit ECU.

  In this process, first, the passenger recognition unit 70 recognizes the presence / absence and number of passengers P in the passenger compartment C based on the signal from the camera 40 (FIG. 4 / STEP01).

  When the occupant recognition unit 70 recognizes that the occupant P is not inside the passenger compartment C (NO in FIG. 4 / STEP02), the process returns to STEP01, and the occupant recognition unit 70 again detects the passenger compartment C. The presence / absence of the passenger P and the number of passengers P are recognized.

  On the other hand, when the occupant recognition unit 70 recognizes that the occupant P is inside the passenger compartment C (in the case of YES in FIG. 4 / STEP02), the health state recognition unit 71 includes the camera 40, the electroencephalogram sensor 41, Based on the signals from the pulse sensor 42 and the respiratory pulse sensor 43 and the biological information acquired via the portable information terminal 80 of the passenger P, the health state of the passenger P is recognized (FIG. 4 / STEP03). .

  When the health state recognition unit 71 recognizes that the health state is not a predetermined health state (for example, a health state in which it is determined that improvement / improvement of the health state is necessary) (NO in FIG. 4 / STEP04) ), Returning to STEP 01, the passenger recognition unit 70 again recognizes the presence / absence and number of the passenger P in the passenger compartment C.

  At this time, instead of returning to STEP 01, the process may return to STEP 03, and the health condition recognition unit 71 may recognize the health condition of the passenger P again after a predetermined time has elapsed.

  On the other hand, when the health state recognition unit 71 recognizes that the health state is a predetermined health state (in the case of YES in FIG. 4 / STEP04), the open state recognition unit 72 is based on the signal from the door sensor 53. The state of the window and door of the vehicle V is recognized (FIG. 4 / STEP05).

  When the open state recognizing unit 72 recognizes that one of the door and the window is open (in the case of YES in FIG. 4 / STEP 06), the process returns to STEP 01, and the passenger recognizing unit 70 again detects the passenger compartment. The presence / absence and number of the passenger P inside C are recognized.

  At this time, instead of returning to STEP01, the process may return to STEP05, and after a predetermined time has elapsed, the health condition recognition unit 71 may recognize the health condition of the passenger P again. Alternatively, returning to STEP 03, the health condition recognition unit 71 may recognize the health condition of the passenger P again after a predetermined time has elapsed.

  On the other hand, when the open state recognizing unit 72 recognizes that the door and the window are not in the open state (NO in FIG. 4 / STEP06), the running state recognizing unit 73 includes the ENG rotation speed sensor 30 and the ENG temperature sensor 31. Based on the signal from the AP opening sensor 32, the traveling state of the vehicle V is recognized (FIG. 4 / STEP07).

  When the traveling state recognition unit 73 recognizes that the engine ENG is at least one of a low temperature state and a low rotation high load state (YES in FIG. 4 / STEP08), the environment adjustment unit 77 While preferentially supplying the engine air to the engine ENG, the engine air is also supplied to the interior of the passenger compartment C, and adjustment of the environment inside the passenger compartment C and the supply amount of oxygen-enriched air to the engine ENG is started. (FIG. 4 / STEP09).

  On the other hand, when the traveling state recognition unit 73 recognizes that the engine ENG is neither in the low temperature state nor in the low rotation high load state (in the case of NO in FIG. 4 / STEP08), the engine ENG is in the high rotation low load state. When recognized as being present (FIG. 4 / YES in STEP 10), the environment adjustment unit 77 supplies oxygen-enriched air preferentially to the interior of the passenger compartment C and also to the engine ENG, Adjustment of the environment inside the passenger compartment C and the supply amount of oxygen-enriched air to the engine ENG is started (FIG. 4 / STEP 11).

  On the other hand, when the running state recognition unit 73 recognizes that the engine ENG is neither in the low temperature state nor in the low rotation high load state (in the case of NO in FIG. 4 / STEP08), it is not in the high rotation low load state. Is recognized (in the case of NO in FIG. 4 / STEP 10), the environment adjustment unit 77 supplies the oxygen-enriched air to the interior of the passenger compartment C and the engine ENG according to a predetermined supply amount, Adjustment of the environment inside the chamber C and the supply amount of oxygen-enriched air to the engine ENG is started (FIG. 4 / STEP 12).

  In the adjustment of the environment in STEP09, STEP11, and STEP12, specifically, first, the environment adjustment unit 77 is realized inside the passenger compartment C based on the number of recognized passengers P and the health condition of the passengers P. After the environment to be determined is determined, the supply amount of oxygen-enriched air necessary to realize the environment inside the passenger compartment C is recognized. Further, the environment adjustment unit 77 recognizes the supply amount of oxygen-enriched air to be supplied to the engine ENG based on the recognized running state of the vehicle V.

  After that, the environment adjustment unit 77 adjusts the opening of the first flow control valve 25a in the indoor supply passage 25 and the opening of the second flow control valve 26a in the intake supply passage 26 to adjust the interior of the vehicle interior C. And oxygen-enriched air is supplied to the engine ENG while adjusting the supply amount to each of them.

  In this way, the environment adjusting unit 77 supplies the environment enriched in the cabin C (that is, the oxygen concentration and the internal pressure that is the pressure inside the cabin C) and the supply of oxygen-enriched air to the engine ENG. Adjust the amount.

  Here, in the vehicle V, the internal atmospheric pressure (the value indicated by the solid line in FIG. 5) that is the atmospheric pressure inside the passenger compartment C is an effective range for improving the health condition, and the external atmospheric pressure that is the atmospheric pressure around the vehicle V. (For example, the oxygen concentration is 20% or more and 40% or less, and the internal pressure is 1.1 atm or more and 2 atm or less) with respect to (the value indicated by the alternate long and short dash line in FIG. 5), and The adjustment is made so that the difference between the external pressure and the internal pressure becomes constant.

  This is because when the differential pressure between the internal and external pressures fluctuates, a force that deforms the car body is applied to the car body according to the fluctuations. It is for suppressing. However, when a means for separately suppressing deformation of the vehicle body, vibration, noise, or the like is provided, the adjustment may not necessarily be performed so that the differential pressure becomes constant.

  Further, as shown in FIG. 5, the increase in the internal air pressure is performed in stages so as to gradually approach the target air pressure from the time when adjustment is started (that is, the current position). This is because, if the indoor air pressure is rapidly increased, the passenger may experience tinnitus and the like, which may cause discomfort. However, when the target atmospheric pressure is not so different from the current internal atmospheric pressure, the internal atmospheric pressure may be immediately adjusted to the target atmospheric pressure.

  Returning to the description of the processing performed by each functional unit of the control unit ECU shown in the flowchart of FIG. After the processing of STEP09, STEP11, and STEP12, the traveling state recognition unit 73 again performs the traveling state of the vehicle V based on signals from the ENG rotation speed sensor 30, the ENG temperature sensor 31, and the AP opening degree sensor 32. Is recognized (FIG. 4 / STEP 13).

  When the traveling state recognition unit 73 recognizes that the vehicle V is not in a stopped state (FIG. 4 / NO in STEP14), the process returns to STEP08, and the traveling state recognition unit 73 again performs the traveling state of the vehicle V. (Whether the engine ENG is at least one of a low temperature state and a low rotation high load state, or is it a low temperature state).

  On the other hand, when the traveling state recognition unit 73 recognizes that the vehicle V has stopped (in the case of YES in FIG. 4 / STEP 14), the environment adjustment unit 77 opens the pressure release valve 11 and opens the passenger compartment. The internal air pressure, which is the air pressure inside C, is adjusted so as to approach the external air pressure, which is the air pressure around the vehicle V (FIG. 4 / STEP 15).

  As shown in FIG. 5, the decrease in the internal air pressure is stepwise so that it gradually approaches the external air pressure as it approaches the destination from a predetermined time (for example, when a predetermined distance from the destination). To be done. This is because if the atmospheric pressure in the room is drastically lowered, the passenger may feel uncomfortable. However, when the outside air pressure is not so different from the current inside air pressure, the inside air pressure may be immediately adjusted to the outside air pressure.

  Thereafter, when the internal pressure becomes substantially the same value as the external pressure and the door of the vehicle V is opened, the control unit ECU ends the current process.

As described above, the vehicle V is equipped with the oxygen enrichment mechanism 21, and the generated oxygen enriched air adjusts the environment inside the passenger compartment C and adjusts the intake air amount of the engine ENG ( As a result, fuel consumption is improved and NO _x , CO ₂ , HC, etc. emitted are reduced).

As a result, the vehicle V maintains a healthy state in addition to an added value such as an improvement in fuel consumption and a reduction in exhausted NO _x , CO ₂ , HC, and the like, as in a conventional vehicle equipped with an oxygen enrichment mechanism.・ It has new added value as a means of improvement. The new added value is provided in a form that is easily felt by the passenger P.

  Although the illustrated embodiment has been described above, the present invention is not limited to such a form.

  For example, in the above-described embodiment, the environment adjustment unit 77 improves the oxygen concentration and makes the internal pressure that is the pressure inside the passenger compartment C positive with respect to the external pressure that is the pressure around the vehicle V. Adjustments have been made. In addition to the interior of the passenger compartment C, oxygen-enriched air is supplied to an engine that is an internal combustion engine.

  However, the internal environment adjustment device of the present invention is not limited to such a configuration, and may be any device that adjusts at least the oxygen concentration in the room of the moving body to be higher than the atmosphere. .

  Further, in the above embodiment, the environment inside the passenger compartment C is adjusted and the oxygen-enriched air is supplied to the engine ENG with the passenger P as a reference. Here, the passenger P includes not only the driver but also a passenger.

  However, the passenger who becomes a reference in the present invention may be any person who exists in the room when the moving body moves, such as one or both of the driver and the passenger.

  Moreover, in the said embodiment, adjustment of the environment inside the compartment C adjusts the supply amount of the oxygen-enriched air to the inside of the compartment C, and the opening degree of the pressure release valve 11 which is an exhaust amount adjustment mechanism. Is done by adjusting.

  However, the internal environment adjustment apparatus of the present invention is not limited to such a configuration, and various known methods may be used as the environment adjustment method. For example, as a method of adjusting the oxygen concentration, instead of supplying oxygen-enriched air, a method of supplying an oxygen tank to the moving body and supplying oxygen itself, or installing a nitrogen removing device indoors, A method of removing nitrogen directly from indoor air may be used. In addition, for example, as a method for adjusting the internal atmospheric pressure, which is an indoor atmospheric pressure, a method in which the volume or temperature in the room of the moving body is changed may be used.

  In the above embodiment, when determining the necessity and contents of the interior of the passenger compartment C, the presence / absence and number of passengers, health status, door and window open status, and running status are recognized in this order. Has been done.

  However, the internal environment adjustment device of the present invention is not limited to such a configuration, and finally, adjustment is performed so that the oxygen concentration in the room of the moving body is higher than the atmosphere. I just need it. For example, the presence / absence and number of passengers, health status, door and window open status, and running status may be recognized in a different order from the embodiment, and at least one or all of them may be omitted. May be.

  In the embodiment of the present invention, a part of the oxygen-enriched air is supplied to the internal combustion engine. However, the present invention can also be applied to an electric vehicle that does not have the internal combustion engine.

1 Internal environment adjustment device 11 Pressure release valve (displacement adjustment mechanism)
DESCRIPTION OF SYMBOLS 10 Air-conditioner outlet 20 Air introduction hole 21 Oxygen enrichment mechanism 22 Cooling mechanism 23 Compressor (Outside air pressurization mechanism, oxygen enriched air pressurization mechanism)
24 Tank 25 Indoor supply path 25a First flow control valve 26 Intake supply path 26a Second flow control valve 27 Bypass path 30 ENG rotation speed sensor 31 ENG temperature sensor 32 AP opening sensor 40 Camera 41 EEG sensor 42 Pulse sensor 43 Respiration beat Sensor 50 O ₂ sensor 51 CO ₂ sensor 52 Internal air pressure sensor 53 Door sensor 60 External air pressure sensor 70 Passenger recognition unit 71 Health state recognition unit 72 Open state recognition unit 73 Traveling state recognition unit 74 Oxygen concentration recognition unit 75 Internal pressure recognition unit 76 External air pressure recognition unit 77 Environmental adjustment unit 80 Portable information terminal C Car compartment ENG engine (internal combustion engine)
ECU control part P Passenger V Vehicle (moving body)

Claims (11)

An internal environment adjusting device for adjusting the indoor environment of a moving object,
An internal environment adjusting device comprising an environment adjusting unit that adjusts the oxygen concentration in the room so as to be higher than the atmosphere. The internal environment adjusting device according to claim 1,
A passenger recognition unit for recognizing presence or absence of a passenger in the room;
The internal environment adjustment device, wherein the environmental adjustment unit adjusts the oxygen concentration in the room to be higher than the atmosphere when the passenger is in the room. The internal environment adjusting device according to claim 2,
The passenger recognition unit recognizes the number of passengers,
The environment adjusting unit adjusts the oxygen supply amount in the room based on the recognized number of passengers, and adjusts the oxygen concentration in the room to be higher than the atmosphere. Internal environmental adjustment device. In the internal environment adjusting device according to any one of claims 1 to 3,
A health condition recognition unit that recognizes the health condition of the passenger,
The environment adjustment unit adjusts the oxygen concentration in the room to be higher than the atmosphere when the recognized health condition of the occupant is a predetermined health condition. Adjustment device. In the internal environment adjusting device according to claim 4,
The health condition recognizing unit recognizes the health condition of the occupant based on the occupant's biological information transmitted from a portable information terminal. In the internal environment adjusting device according to any one of claims 1 to 5,
The internal environment adjustment device, wherein the environmental adjustment unit adjusts an internal atmospheric pressure, which is an indoor atmospheric pressure, to a positive pressure with respect to an external atmospheric pressure, which is an atmospheric pressure around the moving body. In the internal environment adjustment device according to any one of claims 1 to 6,
An oxygen-enriching mechanism that generates oxygen-enriched air; and a flow rate control valve that adjusts the supply amount of the oxygen-enriched air from the oxygen-enriched mechanism into the room,
The environment adjusting unit adjusts the supply amount of the oxygen-enriched air into the room by adjusting the opening of the flow control valve so that the oxygen concentration in the room becomes higher than the atmosphere. An internal environment adjusting device characterized by adjusting to the internal environment. The internal environment adjusting device according to claim 7,
An outside air pressurizing mechanism for pressurizing outside air introduced from the outside of the moving body;
The internal environment adjustment device, wherein the oxygen enrichment mechanism generates oxygen enriched air using the pressurized outside air.   A vehicle comprising the internal environment adjusting device according to any one of claims 1 to 8. The vehicle according to claim 9, wherein
An internal combustion engine,
The internal environment adjustment device has an oxygen enrichment mechanism that generates oxygen enriched air,
The environment adjustment unit supplies the generated oxygen-enriched air to the room and the internal combustion engine. An internal environment adjustment method for adjusting the indoor environment of a moving object,
An internal environment adjustment method comprising a step of adjusting the oxygen concentration in the room so as to be high with respect to the atmosphere.