JP2021117529A - Carbon dioxide collection system in vehicle mounting co2 collection device - Google Patents

Abstract

To provide a carbon dioxide collection system capable of improving an operation frequency of a CO2 collection device by avoiding or suppressing troublesomeness in stopping at collection equipment to collect or exhaust carbon dioxide.SOLUTION: A carbon dioxide collection system in a vehicle mounting a CO2 collection device includes parking guidance means to be connected to a vehicle intending to park so as to allow the vehicle to move to a predetermined parking position and to park at the position in place of a driver of the vehicle. The parking guidance means is constituted to collect carbon dioxide by communication with the CO2 collection device during being connected to the vehicle when the vehicle is moved to a parking position or after moving the vehicle to the parking position (steps S3, S50, S80).SELECTED DRAWING: Figure 5

Description

The present invention relates to a carbon dioxide recovery system in a vehicle equipped with a device for recovering CO ₂ in CO ₂ or in the air discharged from an internal combustion engine.

A vehicle equipped with a CO ₂ recovery device is described in Patent Document 1. The CO ₂ recovery device supplies the exhaust gas (exhaust gas) discharged from the engine to the CO ₂ capture agent, and the CO ₂ capture agent captures or adsorbs the carbon dioxide in the exhaust gas to reduce the carbon dioxide in the exhaust gas. It is configured to allow, that is, to collect. Residual exhaust gas after contact with the CO _{2 scavenger is released into the atmosphere.} Further, in the above-mentioned CO ₂ recovery device, carbon dioxide is desorbed from the scavenger by heating the scavenger by the exhaust heat from the engine, and the desorbed carbon dioxide is stored in the storage tank in the vehicle. It is configured in. The carbon dioxide stored in the storage tank is recovered at a predetermined recovery stand.

Special Table 2014-504695

Since the capacity of the above-mentioned storage tank is fixed by design or structure, if the storage tank is full or stores carbon dioxide more than a predetermined amount, it becomes impossible to recover carbon dioxide any more. It ends up. Therefore, after the predetermined amount is recovered, carbon dioxide is transferred from the storage tank of the vehicle to the tank installed in the recovery stand to increase the free capacity of the storage tank of the vehicle. However, it may be troublesome or uncomfortable to go to the collection stand because the collection stand is far from the current location or the collection stand is crowded. In that case, the storage tank of the vehicle is almost full and the carbon dioxide recovery cannot be continued, so that the carbon dioxide cannot be recovered even if the vehicle is equipped with the _{CO 2 recovery device.} In this way, conventionally, since the place where the carbon dioxide recovered by the vehicle is transferred to the place where the carbon dioxide is further processed such as other fixed facilities is limited, the carbon dioxide recovery function can be achieved by traveling over a wide area. The CO2 capture device of a vehicle with excellent performance could not be used effectively, and there was room for developing new technology in this respect.

The present invention has been made against the background of the above circumstances, and can improve the operating frequency of the _{CO 2} recovery device by avoiding or suppressing the troublesomeness of stopping at a recovery device to recover or discharge carbon dioxide. The purpose is to provide a carbon capture system.

In order to achieve the above object, the present invention collects and stores carbon dioxide in a gas by capturing or adsorbing it, and recovers the stored carbon dioxide with a recovery device provided outside. In a _{carbon dioxide recovery system in a vehicle equipped with a configured CO 2} recovery device, the vehicle is connected to the vehicle to be parked, and the vehicle is moved to a predetermined parking position and parked on behalf of the driver of the vehicle. It has a parking guidance means, and the parking guidance means is configured to receive carbon dioxide stored in the vehicle in a state of being connected to the vehicle and transfer the carbon dioxide to the collector. There is.

In the collection system according to the embodiment of the present invention, the parking guidance means is connected to the vehicle to be parked, and the parking guidance means moves the vehicle to the parking position on behalf of the driver. When the parking guidance means is connected to the vehicle, such as when the parking guidance means is moving the vehicle to the parking position or when the vehicle is stopped at the parking position, the carbon dioxide stored in the vehicle is parked. Transferred to a collector via induction means. The recovery device may be provided in the parking guidance means, or is installed in the vicinity of the parking position, and the parking guidance means is configured to mediate the transfer of carbon dioxide from the vehicle to the recovery device. You may be. Therefore, according to the recovery system of the present invention, the amount of carbon dioxide stored in the vehicle can be reduced by using the parking time, so that the CO ₂ recovery device is used when starting from the parking position and traveling. The carbon dioxide recovery capacity is restored and the carbon dioxide recovery can be continued. As a result, the frequency with which the vehicle goes to the carbon dioxide recovery stand is reduced, in other words, it is possible to reduce the situation where the recovery capacity is reduced and carbon dioxide cannot be _{recovered. Therefore, the operation of the CO 2} recovery device is performed. The frequency can be increased.

It is a block diagram for demonstrating an example of embodiment of this invention. It is a figure which shows typically an example of the vehicle equipped with the _{CO 2} recovery device which concerns on embodiment of this invention. It is a block diagram which shows an example of the structure _{of the CO 2} recovery apparatus in embodiment of this invention. It is a flowchart for demonstrating an example of control in Embodiment of this invention. It is a flowchart for demonstrating an example of control executed in a control center. It is a flowchart for demonstrating an example of the control executed by a parking device.

FIG. 1 is a block diagram for explaining an example of an embodiment of the present invention. Vehicle Ve in the embodiment of the invention, carbon dioxide and contained in the exhaust gas of the engine, vehicle interior outside of carbon dioxide capture or adsorption to recover contained in the air, also, CO ₂ that is configured to reservoir The recovery device 1 is provided. The vehicle Ve may be a vehicle Ve having only an engine as a driving force source, or a so-called hybrid vehicle having a motor as a driving force source in addition to the engine. Further, the vehicle Ve may be a vehicle Ve capable of automatic driving by controlling the driving force, the braking force, the steering, and the like without human operation. The configurations of the CO ₂ recovery device 1 and the vehicle Ve will be described later.

Since the amount of carbon dioxide that can be recovered or stored by the above-mentioned CO _{2 recovery device 1 is determined by design or structure, the carbon dioxide storage portion 2 in the CO 2} recovery device 1 is full or carbon dioxide. When the amount of carbon dioxide stored exceeds a predetermined amount, carbon dioxide cannot be recovered any more. Therefore, when carbon dioxide is recovered or stored in the storage section 2 of _{the CO 2} recovery device 1 to some extent, it is stored in the storage section 2 of the _{CO 2 recovery device 1 in a predetermined recovery stand provided outside the vehicle Ve.} It is necessary to emit carbon dioxide. However, if the current location is far from the recovery stand or the recovery stand is crowded, it may be troublesome or troublesome to stop by the recovery stand and discharge carbon dioxide from the storage unit 2. Therefore, in the recovery system according to the embodiment of the present invention, for example, when the vehicle is automatically parked at a predetermined parking position in the parking lot and the automatic valley parking is performed, the CO ₂ recovery device 1 is used. It is configured to recover carbon dioxide from the on-board vehicle Ve.

Specifically, the vehicle Ve in the embodiment of the present invention is connected to a predetermined communication network, and as shown in FIG. 1, is configured to mutually perform data communication with the control center 3 in the parking lot. Has been done. The vehicle Ve includes a DCM (Data Communication Module) 4 that transmits / receives data between the vehicle (own vehicle) Ve and the control center 3, a driving force source such as an engine or a motor, and a CO ₂ recovery device 1. It is equipped with an electronic control unit (ECU) 5 that electrically controls such as. Data and information to be transmitted from the vehicle Ve to the control center 3 (hereinafter, referred to as vehicle information.) The current absence of position and the CO ₂ recovery apparatus 1 of the vehicle Ve, when mounted with the CO ₂ recovering apparatus 1 Can list the free capacity of the storage unit 2 in the CO ₂ recovery device 1, whether or not automatic operation is possible, the length, width, height, weight of the vehicle Ve, that is, the size of the vehicle Ve, and the like. .. Examples of the data and information received by the vehicle Ve from the control center 3 include a parking position, a parking method, and a warehousing method.

The ECU 5 is mainly composed of a microcomputer, performs calculations using various input data and data stored in advance, and uses the results of the calculations as a driving force source such as an engine or a motor and a CO ₂ recovery device 1. It is configured to be output as a control command signal. The ECU 5 has a data storage unit 6 that stores and stores various data, and the data storage unit 6 stores various data and information about the vehicle Ve described above. Further, the ECU 5 has a function (not shown) for acquiring the position information of the vehicle Ve. The position information can be performed based on, for example, map information or road information acquired from a navigation system (not shown). Alternatively, if the position of the vehicle Ve can be detected by a sensor or signpost installed on the road or on the side of the road, the current position can be obtained by communicating with such a sensor or signpost. Further, the position information may be information obtained by GPS (Global Positioning System).

The control center 3 is composed mainly of a transmission / reception unit 7 that receives vehicle information and the like transmitted from the vehicle Ve and transmits data such as a parking position to the vehicle Ve, and a microcomputer, and various input data and in advance. It includes a control ECU 8 that performs calculations using the stored data and outputs the result of the calculations as a control command signal. The control ECU 8 includes a parking position determining unit 9 that determines the parking position of the vehicle Ve in the parking lot, and a parking device control unit 10 that controls a parking device that moves the vehicle Ve to the parking position and parks the vehicle Ve. The control center 3 does not necessarily have to be provided in or around the parking lot, and may be configured so as to be capable of data communication with the vehicle Ve and the parking device via the communication network.

The parking device 11 is a device corresponding to the parking guidance means according to the embodiment of the present invention, and performs automatic driving by automatically controlling the driving operation without a person operating the parking position, instead of the driver. It is configured to move and park the vehicle Ve up to. That is, it is configured to perform automatic valet parking in which the vehicle Ve is driven and parked on behalf of the driver. The movement of the vehicle Ve by the parking device 11 is performed by electrically connecting the vehicle Ve and the parking device 11 and electrically controlling the driving force, braking force, steering, etc. of the vehicle Ve by the parking device 11. You may go. Alternatively, the vehicle Ve and the parking device 11 may be mechanically connected and the vehicle Ve may be towed by the parking device 11.

Further, the parking device 11 is configured to receive carbon dioxide from the _{CO 2} recovery device 1 mounted on the vehicle Ve when the vehicle Ve is moved to the parking position or after the vehicle Ve is parked at the parking position. Has been done. That is, the parking device 11 is a transmission / reception unit 13 that transmits / receives data between the parking device side CO _{2 recovery device 12 that can be connected to the CO 2 recovery device 1 mounted on the vehicle Ve and the vehicle Ve and the control center 3.} And an ECU 14 for a parking device, which is mainly composed of a microcomputer, performs calculations using various input data and data stored in advance, and outputs the result of the calculation as a control command signal. There is. Further, the parking device 11 includes a driving force source for applying a driving force and a braking force to the wheels, a braking device, and a steering device (not shown) for operating the steering angle of the steering wheel. Parking apparatus CO ₂ recovering apparatus 12 may be configured similarly to the CO ₂ recovering apparatus 1 installed in the vehicle Ve, or discharged from the CO ₂ recovering apparatus 1 installed in the vehicle Ve dioxide It may be a tank for storing carbon dioxide. In short, it may be configured so that it can be connected to _{the CO 2} recovery device 1 mounted on the vehicle Ve to recover carbon dioxide and store the recovered carbon dioxide. Further, the parking device 11 is configured to be connected to a predetermined recovery stand, and by connecting to the recovery stand, carbon dioxide collected and stored in the _{parking device side CO 2 recovery device 12 at the recovery stand.} Emit carbon.

Parking device for ECU14 is recovered and the carbon dioxide in the parking apparatus CO ₂ recovering apparatus 12, the CO ₂ recovery apparatus control unit 15 for controlling the discharge of carbon dioxide into predetermined collecting stand from the parking apparatus CO ₂ recovering apparatus 12 It has. Further, the parking device ECU 14 controls a driving force source (not shown) of the parking device 11, a driving force and braking force of the braking device, a steering angle of the steering device, and the like based on various data received by the transmission / reception unit 13. It is configured for automatic operation.

FIG. 2 is a diagram schematically showing an example of a vehicle Ve equipped with the _{CO 2} recovery device 1 according to the embodiment of the present invention. The vehicle Ve shown in FIG. 2 includes an engine 16 as a driving force source. The engine 16 may be a gasoline engine, a diesel engine, or the like, and is configured to adjust the output and electrically control operating states such as start and stop. In the case of a gasoline engine, the opening degree of the throttle valve, the amount of fuel supplied or injected, the execution and stop of ignition, and the ignition timing are electrically controlled. In the case of a diesel engine, the fuel injection amount, the fuel injection timing, the opening degree of the throttle valve in the EGR [Exhaust Gas Recirculation] system, and the like are electrically controlled. As described above, the vehicle Ve in the embodiment of the present invention may be a so-called hybrid vehicle equipped with a motor as a driving force source in addition to the engine 16, and the driving force and the driving force can be obtained without human operation. It may be configured so that automatic driving can be performed by controlling braking force, steering, and the like.

In the _{example shown here, the CO 2} recovery device 1 is provided in the exhaust flow path 17 of the engine 16, and the air containing carbon dioxide in the exhaust gas discharged from the engine 16 to the exhaust flow path 17 and the vehicle interior or By contacting the air containing carbon dioxide outside the vehicle interior with a capture agent (not shown), the capture agent is configured to capture or adsorb carbon dioxide and recover it. Further, the CO ₂ recovery device 1 has a storage unit 2 for storing the carbon dioxide recovered from the air. The storage portion 2 may be composed of the above-mentioned scavenger. That is, it may be configured to store carbon dioxide in a state where carbon dioxide is captured or adsorbed by the scavenger. Alternatively, the storage unit 2 may be composed of a tank (not shown) that desorbs carbon dioxide captured or adsorbed by the scavenger from the scavenger and stores the desorbed carbon dioxide. Since the amount of the scavenger and the capacity of the tank in the storage unit 2 are determined by design or structure, the maximum amount of carbon dioxide that can be stored in the storage unit 2 can be obtained in advance. The above-mentioned air means exhaust gas, gas around the vehicle such as gas inside and outside the vehicle interior of the vehicle Ve, and gas in the vicinity thereof, and gas in a predetermined space.

The exhaust flow path 17 is provided with a heat storage device 18 for storing the heat discharged from the engine 16 to the exhaust flow path 17. As an example, the scavenger is heated by the heat stored in the heat storage device 18 to desorb carbon dioxide trapped or adsorbed by the scavenger from the scavenger. Therefore, when the storage unit 2 is configured by the scavenger and the carbon dioxide captured or adsorbed in the storage unit 2 is collected by the recovery stand 19 provided outside the vehicle Ve, the storage unit 2 is stored in the collection stand 19. The storage unit 2, that is, the scavenger is heated by the above-mentioned heat storage device 18 in a state where the above-mentioned heat storage device 18 is connected. In this way, carbon dioxide is desorbed from the scavenger and recovered at the recovery stand 19. Alternatively, when the storage unit 2 is composed of the tank described above, the carbon dioxide desorbed from the scavenger as described above is temporarily stored in the tank, and the tank is connected to the recovery stand 19 to form a tank. The carbon dioxide stored inside is recovered at the recovery stand 19. The CO ₂ recovery device 1 having the above configuration is stored, for example, in the luggage space of the vehicle Ve or in the vicinity of the luggage space. Further, the above-mentioned recovery stand 19 corresponds to the recovery device in the embodiment of the present invention. The collection stand 19 is provided, for example, in a gas station, a service area or parking area of an expressway, a parking lot of a commercial facility, or the like.

_{The capture and recovery of carbon dioxide by the CO 2} recovery device 1 according to the embodiment of the present invention can be performed by a conventionally known method such as a physical adsorption method, a physical absorption method, a chemical absorption method, or a deep cold separation method. can. In the embodiment of the present invention, a physical adsorption method is adopted as a method for capturing or recovering carbon dioxide, and carbon dioxide in exhaust gas or in the air inside or outside the vehicle is captured or adsorbed by a scavenger such as activated carbon or zeolite. It is configured to be recovered. Specifically, by setting the temperature of the scavenger in the storage unit 2 to a temperature lower than that when carbon dioxide is desorbed from the scavenger, the scavenger captures or adsorbs carbon dioxide and recovers it. In the following description, the temperature at which carbon dioxide is captured or adsorbed by this scavenger is referred to as the adsorption temperature. Then, carbon dioxide is desorbed from the scavenger by setting the temperature of the scavenger to a temperature higher than the adsorption temperature. Alternatively, carbon dioxide is captured or adsorbed by the scavenger by increasing the pressure when the carbon dioxide is brought into contact with the scavenger to some extent, and carbon dioxide is desorbed from the scavenger by lowering the pressure.

FIG. 3 is a block diagram showing an example of the configuration _{of the CO 2} recovery device 1 according to the embodiment of the present invention. In the example shown in FIG. 3, the heat exchanger 20 is provided on the upstream side of the storage unit 2 in the flow direction of the exhaust gas discharged from the engine 16. The heat exchanger 20 cools the exhaust gas and air of the engine 16 to a temperature equal to or lower than the above adsorption temperature, and is configured to exchange heat between the cooling water cooled by the radiator 21 and the exhaust gas and air. .. A pump 22 that sends exhaust gas or the like to the storage unit 2 between the heat exchanger 20 and the storage unit 2 in the above-mentioned flow direction of the exhaust gas, and a flow rate sensor 23 that detects the flow rate of the exhaust gas or the like introduced into the storage unit 2. Is provided. Therefore, the amount of carbon dioxide captured or adsorbed by the scavenger and recovered can be estimated based on the flow rate of the exhaust gas detected by the flow rate sensor 23.

The residual exhaust gas in which carbon dioxide is captured or adsorbed by the scavenger is discharged to the outside of the vehicle Ve through the exhaust port 24, or is returned to the exhaust flow path 17 and is returned to the exhaust flow path 17 together with other exhaust gas to the exhaust port of the exhaust flow path 17. It is emitted from 17A to the outside of the vehicle Ve. Further, the carbon dioxide stored in the storage unit 2 is discharged to the recovery stand 19 through the recovery port 25, and can also be discharged to the outside of the vehicle Ve from the discharge port 24. When the storage unit 2 is provided with a tank, the carbon dioxide in the tank is discharged to the recovery stand 19 through the recovery port 25, or is discharged to the outside from the discharge port 24. _{Therefore, when carbon dioxide is recovered from the storage unit 2 in the CO 2} recovery device 1 of the vehicle Ve, _{the parking device side CO 2} recovery device 12 of the parking device 11 is connected to at least one of the discharge port 24 and the recovery port 25. Will be done. The connection between one of the discharge port 24 and the recovery port 25 and the CO ₂ recovery device 12 on the parking device side in the vehicle Ve, and the transfer of carbon dioxide between them are carried out by a vehicle such as a hose or a pipe (not shown). the a CO ₂ recovery apparatus 1 of Ve and parking apparatus CO ₂ recovering apparatus 12 can be performed by communicating. The connection between the vehicle Ve and the parking device 11 by these hoses, pipes, etc. may be performed by a person, or may be configured to be automatically connected.

The calculation and detection of the amount of carbon dioxide stored in the storage unit 2 will be described by taking as an example the case where the carbon dioxide in the exhaust gas of the engine 16 is recovered and stored in the storage unit 2. The concentration of carbon dioxide contained in the exhaust gas of the engine 16 is within a substantially constant value or a constant concentration range when the engine 16 is constantly operating (combusting). Since _{the amount of exhaust gas supplied to the CO 2} recovery device 1 can be detected by the flow rate sensor 23, the amount of carbon dioxide supplied to the _{CO 2} recovery device 1 can be obtained based on the detected value of the flow rate sensor 23. When the throttle opening or the fuel injection amount suddenly increases as in the case of sudden acceleration, or when the low throttle opening continues due to traffic congestion, the operating condition of the engine 16 is adjusted. By performing the correction, the amount of carbon dioxide supplied to the _{CO 2 recovery device 1 can be obtained.} The proportion of carbon dioxide that can be captured or adsorbed by the scavenger varies depending on the temperature and flow velocity of the exhaust gas, but this can be determined in advance by experiments or the like. Then, by integrating the amount of carbon dioxide recovered thus obtained, the amount of carbon dioxide stored in the scavenger, that is, the storage unit 2, that is, the total amount of carbon dioxide recovered can be obtained. Further, when the above-mentioned tank is provided, it is also possible to obtain the amount of carbon dioxide in the tank by detecting the pressure in the tank. Further, since there is a correlation between the amount of carbon dioxide generated and the amount of fuel injected, it is also possible to obtain the amount of carbon dioxide recovered by the _{CO 2 recovery device 1 based on the amount of fuel injected.}

Next, a control example executed in the embodiment of the present invention will be described. FIG. 4 is a flowchart for explaining the control example, which is executed on the vehicle Ve in the embodiment of the present invention. First, the vehicle information is transmitted to the control center 3 (step S1). The vehicle information, as described above, the current presence of the position and the CO ₂ recovery apparatus 1 of the vehicle Ve, when mounted with the CO ₂ recovering apparatus 1 is empty reservoir 2 in that the CO ₂ recovery apparatus 1 The capacity, whether or not automatic driving is possible, the length, width, height, and weight of the vehicle Ve, that is, the size of the vehicle Ve, and the like. Since the control example executed in the embodiment of the present invention is a control example when the vehicle Ve or the parking device 11 is automatically driven in a valley, the boarding is performed at the time when the control example shown in FIG. 4 is executed. It is desirable that the person and the driver get off the vehicle Ve.

FIG. 5 is a flowchart for explaining an example of control executed at the control center 3 that has received the vehicle information described above. As shown in FIG. 5, in the control center 3, the parking position is first determined based on the received vehicle information (step S10). For example, in the case where the vehicle Ve is equipped with a CO ₂ recovering apparatus 1, as to park around the other vehicle Ve equipped with a CO ₂ recovery device 1, the parking position of the vehicle Ve is determined. This is because _{when the vehicles Ve equipped with the CO 2} recovery device 1 are scattered and parked, one of the vehicles Ve and the other vehicle is recovered when carbon dioxide is recovered from the plurality of vehicles Ve by the parking device 11. This is to avoid the time required for moving to and from Ve. That is, this is to move the parking device 11 from one vehicle Ve to another vehicle Ve in a timely and efficient manner. The parking position may be determined so that the vehicle Ve equipped with the _{CO 2} recovery device 1 is parked around the recovery stand 19. _{In this case, since the vehicle Ve equipped with the CO 2} recovery device 1 is parked within a predetermined range centered on the recovery stand 19, the parking device 11 can be moved more efficiently in terms of time. Carbon dioxide can be transferred from the vehicle Ve to the recovery stand 19 via the parking device 11.

Next, it is determined whether or not the vehicle is an autonomous driving vehicle (step S20). Since the vehicle information described above includes information about automatic driving, the determination in step S20 can be made based on the vehicle information. Alternatively, for example, data such as a vehicle type and a vehicle class may be referred to. If a positive determination is made in step S20, _{it is determined whether or not the CO 2} recovery device 1 is mounted (step S30). The vehicle information described above includes information about the _{CO 2 recovery device 1.} Therefore, the determination in step S30 can be made based on the vehicle information. The determination in steps S20 and S30 may be made by performing data communication between the control center 3 and the vehicle Ve _{to newly acquire information on automatic driving and the CO 2 recovery device 1.}

If a negative determination is made in step S30, a command signal for parking by automatic operation at the parking position determined in step S10 is output from the control center 3 (step S40). The vehicle Ve to which the command signal is output in step S40 is a vehicle Ve that can be automatically driven but is not equipped with the _{CO 2 recovery device 1.} Therefore, after executing the control in step S40, the routine shown in FIG. 5 is temporarily terminated without performing any particular control.

On the other hand, if a positive judgment is made in step S30, a command signal for automatically driving the vehicle Ve to the parking position determined in step S10 is output from the control center 3 and the parking device. In response to 11, a command signal is created for the vehicle Ve to recover carbon dioxide (step S50). This is because the vehicle Ve to which the command signal in step S50 is output is a vehicle Ve capable of automatic driving _{and equipped with the CO 2} recovery device 1, so that the vehicle Ve is moved by the parking device 11 or can be moved by the parking device 11. This is because there is no need to tow and the vehicle can be parked in the parking position by automatic operation. Further, the reason why carbon dioxide is recovered after parking at the parking position is that it takes a certain amount of time to recover carbon dioxide from the _{CO 2 recovery device 1 and that the valley parking is performed promptly.} After that, the above-mentioned command signal for the parking device 11 is output from the control center 3 (step S60). After that, the routine shown in FIG. 5 is temporarily terminated without any particular control.

If a negative determination is made in step S20 described above, _{it is determined whether or not the CO 2} recovery device 1 is mounted (step S70). Since the control content in step S70 is the same as the control content in step S30, the description thereof will be omitted.

If a positive judgment is made in step S70, the vehicle Ve is moved to the parking position or towed by the parking device 11, and the CO mounted on the vehicle Ve is mounted on the vehicle Ve during the movement or towing. ₂ A command signal for recovering carbon dioxide stored in the recovery device 1 is created. (Step S80). This is because the vehicle Ve to which the command signal in step S80 is output cannot be automatically driven and needs to be moved to the parking position or towed by the parking device 11. Further, at this time, the _{carbon dioxide stored in the CO 2} recovery device 1 is recovered in order to effectively utilize the time. After that, the process proceeds to step S60, and the command signal created in step S80 is output from the control center 3.

If a negative determination is made in step S70, a command signal for moving or towing the vehicle Ve to the parking position is created. (Step S90). This is because the vehicle Ve to which the command signal in step S90 is output cannot be automatically driven and needs to be moved to the parking position or towed by the parking device 11. The vehicle Ve is not equipped with the _{CO 2 recovery device 1.} After that, the process proceeds to step S60, and the command signal created in step S90 is output from the control center 3.

Returning to the description of the flowchart of FIG. 4, it is determined whether or not the command signal from the control center 3 for the vehicle Ve has been received following the control in step S1 (step S2). Specifically, the command signal is a command signal created in steps S40 and S50 in the control example shown in FIG. If the command signal is not received, it is negatively determined in step S2, and in that case, the routine shown in FIG. 4 is temporarily terminated without any particular control. On the other hand, when the command signal is received, it is positively determined in step S2, and the vehicle Ve is parked at the parking position by automatic driving according to the command signal (step S3). After that, the routine shown in FIG. 4 is temporarily terminated.

Here, a control example executed by the parking device 11 will be described. FIG. 6 is a flowchart for explaining the control example. First, it is determined whether or not the command signal from the control center 3 for the parking device 11 has been received (step S100). Specifically, the command signal is a command signal created in steps S50, S80, and S90 in the control example shown in FIG. If the command signal is not received, a negative determination is made in step S1, and in that case, the routine shown in FIG. 6 is temporarily terminated without any particular control. On the other hand, when the command signal is received, it is positively determined in step S1 and the parking device 11 is controlled according to the command signal (step S200). That is, when the vehicle Ve is _{an autonomous driving vehicle equipped with the CO 2} recovery device 1, the parking device 11 is controlled so as to go to recover carbon dioxide after parking at the parking position by automatic driving. Then, it passed through the parking apparatus CO ₂ recovering apparatus 12 communicate with each other in the CO ₂ recovering apparatus 1 and the parking device 11 of the vehicle Ve, the carbon dioxide is transferred from the CO ₂ recovering apparatus 1 in the parking apparatus CO ₂ recovering apparatus 12. On the other hand, when the vehicle Ve is _{equipped with the CO 2} recovery device 1 but is not an autonomous driving vehicle, the parking device 11 moves or pulls the vehicle Ve to the parking position. At this time passed through the parking apparatus CO ₂ recovering apparatus 12 communicate with each other in the CO ₂ recovering apparatus 1 and the parking device 11 of the vehicle Ve, the carbon dioxide was transferred to a CO ₂ recovery apparatus parking apparatus CO ₂ recovering apparatus 12 from 1 Can be replaced. On the other hand, when the vehicle Ve is _{not equipped with the CO 2} recovery device 1, the parking device 11 moves the vehicle Ve to the parking position or is towed.

Explaining the transfer of carbon dioxide from the CO ₂ recovery device 1 to the parking device side CO ₂ recovery device 12, the transfer is, for example, parked in at least one of the discharge port 24 and the recovery port 25 of the vehicle Ve. It is started by detecting that a hose, a pipe or the like (not shown) of the device 11 is connected. When the storage unit 2 is composed of the scavenger, the amount of carbon dioxide transferred from the vehicle Ve to the parking device 11 is controlled by controlling the heating amount of the scavenger by the heat storage device 18. Alternatively, when the storage unit 2 is composed of the tank described above, carbon dioxide transferred from the vehicle Ve to the parking device 11 by controlling a carbon dioxide on-off valve (not shown) provided in the tank. The amount of is controlled. Further, the amount of carbon dioxide that can be transferred as described above is determined by the amount of carbon dioxide that can be accepted by the parking device 11, that is, the free capacity. Therefore, the above-mentioned heating amount and on-off valve are controlled so that the amount of carbon dioxide to be transferred is equal to or less than the free capacity in the above-mentioned parking device 11. When carbon dioxide is transferred from the tank mounted on the vehicle Ve to the tank mounted on the parking device 11, the tank of the parking device 11 has a free capacity as compared with the tank of the vehicle Ve, so that the parking device The pressure of the tank of 11 is lower than the pressure of the tank of the vehicle Ve. Therefore, when the on-off valves of those tanks are opened together, carbon dioxide can be transferred by the pressure difference between those tanks. Then, after the above-mentioned transfer of carbon dioxide is completed, the routine shown in FIG. 4 is temporarily terminated.

As described above, in the recovery system according to the embodiment of the present invention, when the parking device 11 is connected to the vehicle Ve, such as in the process of moving the vehicle Ve to the parking position or in the state of being stopped at the parking position. In addition, the carbon dioxide stored in the vehicle Ve is transferred to the _{CO 2 recovery device 12 on the parking device side in the parking device 11.} That is, since the amount of carbon dioxide stored in the vehicle Ve can be reduced by using the parking time, the _{carbon dioxide recovery capacity of the CO 2} recovery device 1 is restored when starting from the parking position and traveling. And you can continue to recover carbon dioxide. As a result, the frequency with which the vehicle Ve goes to the carbon dioxide recovery stand 19 is reduced, in other words, it is possible to reduce the situation where the recovery capacity is reduced and carbon dioxide cannot be _{recovered. Therefore, the CO 2} recovery device. The operation frequency of 1 can be increased. In addition, it is possible to avoid or suppress the troublesomeness of stopping at the collection stand 19. Further, as compared with the case of stopping at the collection stand 19 on the way to the destination, it is possible to allow a margin of time until the arrival at the destination. Further, in the embodiment of the present invention, since carbon dioxide is only transferred from the vehicle Ve to the parking device 11 as described above, the carbon dioxide concentration in the atmosphere is not increased.

The present invention is not limited to the above-described embodiment, and _{the carbon dioxide recovered by the CO 2} recovery device 1 according to the embodiment of the present invention is not limited to the carbon dioxide in the exhaust gas of the engine 16 and is the vehicle of the vehicle Ve. It may be carbon dioxide in the air inside and outside the vehicle.

1 CO ₂ recovery device 2 Storage unit 19 Recovery stand (collector)
10 Electronic control unit (ECU)
11 Parking device (parking guidance means)
Ve vehicle

Claims (1)

Carbon dioxide in a vehicle equipped with a _{CO 2} recovery device configured to recover and store carbon dioxide in a gas by capturing or adsorbing it, and recovering the stored carbon dioxide with a recovery device provided outside. In a carbon capture system
It has a parking guidance means that is connected to the vehicle to be parked, moves the vehicle to a predetermined parking position on behalf of the driver of the vehicle, and parks the vehicle.
_{The parking guidance means is equipped with a CO 2} recovery device characterized in that it is configured to receive carbon dioxide stored in the vehicle while being connected to the vehicle and transfer it to the recovery device. A carbon dioxide recovery system for vehicles that have been used.

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