DE102020212835A1 - CONTROL SYSTEM FOR A VEHICLE WITH CO2 CATCH DEVICE - Google Patents

Abstract

A control system for a vehicle (Ve), which is designed to increase the number of possibilities to capture CO2 by a CO2 capture device (1) which is arranged in the vehicle (Ve). A control unit (5) of the control system is designed to determine whether the vehicle (Ve) is connected to a predetermined building (7) and to collect CO2 from the air in the building (7) when the vehicle (Ve) is connected to the building (7).

Description

CROSS REFERENCE TO RELATED APPLICATIONS

The present invention claims the advantages of Japanese Patent Application No. 2019-190756 , filed with the Japanese Patent Office on October 18, 2019.

BACKGROUND

Field of the invention

Embodiments of the present invention relate to the technique of a control system for a vehicle having a CO2 capture device that collects CO2 in the atmosphere and in the exhaust gases emitted by an internal combustion engine.

Discussion of the state of the art

The JP-A-2014-509360 describes a vehicle equipped with a CO2 capture device. In the in the JP-A-2014-509360 In the learned vehicle, exhaust gases emitted from an engine are fed to a collecting agent to capture CO2 contained in the exhaust gases, and the exhaust gases from which the CO2 has been captured by the collecting agent are discharged into the atmosphere. According to the teaching of the JP-A-2014-509360 the captured CO2 is heated by the waste heat from the engine to be desorbed by the capture agent and then compressed to be temporarily stored in liquid form.

In order to prevent global warming, it is desirable to use the vehicle equipped with the CO2 trap to capture the CO2 in the air. The z. B. in the JP-A-2014-509360 The described CO2 capture device can capture not only CO2 that is contained in the exhaust gases, but also CO2 that is contained in the atmosphere. However, according to the teaching, the JP-A-2014-509360 the CO2 contained in the exhaust gases is only captured while the vehicle is being driven. Therefore, in order to reduce the CO2 more effectively, it is desirable to increase the number of ways to use the CO2 trap device installed in the vehicle.

SHORT DISPLAY

Aspects of embodiments of the present invention are designed with the above technical problems in mind, and it is therefore an object of the present invention to provide a control system for a vehicle which is designed to increase the number of possibilities for CO2 by one arranged in the vehicle Collect the CO2 collecting device.

The control system according to the exemplary embodiment of the present invention is applied to a vehicle having a CO2 trap that traps CO2 from a gas stream. The control system includes a control unit that controls the vehicle. To achieve the above object, according to the exemplary embodiment of the present invention, the control device is configured to determine whether the vehicle is connected to a predetermined building; and to collect CO2 from the air in the building when the vehicle is connected to the building.

In a non-limiting embodiment, the controller can further be configured to determine whether the CO2 capture device should be supplied with electrical energy from the building in order to collect the CO2 from the air in the building; collecting the CO2 from the air in the enclosure by supplying the CO2 trap with the electrical energy from the enclosure when the CO2 trap can be supplied with the electrical energy from the building; and collecting the CO2 from the air in the building by supplying the collecting device with electrical energy from a battery of the vehicle when the CO2 collecting device cannot be supplied with the electrical energy from the building.

In a non-limiting embodiment, the control device can furthermore be designed to determine, on the basis of a state of charge of the battery and a current consumption in the building, whether the CO2 collection device should be supplied with the electrical energy from the building.

In a non-limiting embodiment, the control device can furthermore be designed to determine a room of the building in which a person is staying and to collect the CO2 from the air in the room of the building in which the person is preferably staying.

In a non-limiting embodiment, the control device can furthermore be designed to determine a room of the building in which the concentration of CO2 in the air is high and to preferentially collect the CO2 from the air in the room of the building in which the concentration of CO2 in the air is high.

In a non-limiting embodiment, the control device can also be designed to collect the CO2 from the air in the building, when the cost of the electrical energy supplied by the building is lower.

In a non-limiting embodiment, the control device can also be designed to collect the CO2 from the air in the building when the supply of electrical energy exceeds the demand for electrical energy.

In one non-limiting embodiment, the control system may further include a CO2 converter that converts the CO2 collected by the CO2 trap into fuel. Furthermore, the control device can be designed to convert the CO2 collected by the CO2 collecting device into fuel if an amount of CO2 adsorbed on the CO2 collecting device is equal to or greater than a predetermined value.

In a non-limiting embodiment, the controller may further be configured to determine whether it is possible to discharge the CO2 collected by the CO2 trap into a storage tank located in the building and that collected by the CO2 trap Discharge CO2 into the storage tank and convert the CO2 in the storage tank into fuel, if it is possible to discharge the CO2 collected by the CO2 capture device into the storage tank.

In a non-limiting embodiment, the controller may further be configured to determine that cheaper power is available when it is not possible to discharge the CO2 collected by the CO2 trap into the storage tank, and that through the CO2 trap Convert collected CO2 into fuel using the cheaper energy when the cheaper energy is available.

In a non-limiting embodiment, the controller may further be configured to determine whether conversion of the CO2 collected by the CO2 capture device to fuel can be postponed until the cheaper energy becomes available when the cheaper energy is not available Converting the CO2 collected by the CO2 capture device to fuel until the cheaper energy becomes available, and converting the CO2 captured by the CO2 capture device into fuel by the cheaper energy when the cheaper energy is available when the conversion of the by CO2 collected by the CO2 trap can be shifted into fuel, and the CO2 collected by the CO2 trap can be converted into fuel by electrical energy other than the cheaper energy, if the conversion of the CO2 collected by the CO2 trap into fuel is not shifted can.

In one non-limiting embodiment, the controller may further be configured to determine whether to postpone conversion of the CO2 collected by the CO2 trap to fuel based on a plan to use the vehicle.

In one non-limiting embodiment, the control system may further include a bypass valve that changes a destination of the air flowing from the building between the CO2 trap and the atmosphere. Furthermore, the control device can be designed to determine an amount of CO2 currently adsorbed on the CO2 collecting device when the CO2 is collected from the air in the building, and to control the bypass valve in such a way that the air discharged from the building is released into the atmosphere when the amount of CO2 adsorbed on the CO2 capture device has reached a threshold limit.

In one non-limiting embodiment, the controller may further be configured to convert the CO2 collected by the CO2 capture device into fuel when the vehicle Ve is parked.

Thus, according to the exemplary embodiment of the present invention, the CO2 contained in the air in the building can be collected by the CO2 trap disposed in the vehicle when the vehicle is parked. According to the exemplary embodiment of the present invention, therefore, the CO2 to be emitted from the building can be captured by the CO2 capture device. Further, if the electric power can be supplied to the CO2 trap from the building, the CO2 can be trapped by the CO2 trap without consuming the electric power accumulated in the battery of the vehicle. According to the exemplary embodiment of the present invention, therefore, the CO2 from the building can be collected by the CO2 trap even when a state of charge of the battery is low. For these reasons, the number of ways to collect CO2 through the CO2 trap can be increased.

According to the exemplary embodiment of the present invention, the CO2 can preferably be collected from the room in which the person is staying, that is, where the concentration of CO2 in the air is high. According to the exemplary embodiment of the present invention, therefore, the CO2 can be efficiently collected from the building.

According to the exemplary embodiment of the present invention, the CO2 can be collected from the building when the cheaper electrical energy is available, e.g. B. when the supply of electrical energy exceeds the demand for electrical energy. According to the exemplary embodiment of the present invention, therefore, the cost of collecting the CO2 can be reduced.

According to the exemplary embodiment of the present invention, the CO2 collected by the CO2 trap can be converted into fuel. The resulting fuel can be used to run the engine, so that fuel costs are reduced. In this way, the captured CO2 that is to be removed can be used to save fuel costs.

According to the exemplary embodiment of the present invention, the air flow discharged from the building is released or discharged into the atmosphere by controlling the bypass valve when the amount of CO2 adsorbed on the CO2 trap reaches the threshold limit value. According to the exemplary embodiment of the present invention, therefore, the air flow is not excessively supplied to the CO2 trap, so that the CO2 trap is prevented from being damaged. Furthermore, the rooms of the building can be ventilated if the CO2 capture device is not connected to the building or the CO2 capture device is no longer suitable for capturing the CO2.

Thus, according to the exemplary embodiment of the present invention, CO2 can be collected from the air in the building, and the CO2 captured by the CO2 trap can be converted into fuel. According to the exemplary embodiment of the present invention, therefore, the CO2 emissions from the building into the atmosphere can be reduced.

Figure list

• 1 ist ein konzeptuelles Diagramm, das ein erstes Beispiel des Steuerungssystems für das Fahrzeug, das die CO2-Auffangvorrichtung umfasst, zeigt;
• 2 ist ein Blockdiagramm, das Funktionen einer elektronischen Steuerungseinheit des Steuerungssystems gemäß dem ersten Beispiel zeigt;
• 3 ist ein Flussdiagramm, das eine Routine zum Steuern das Fahrzeug gemäß dem ersten Beispiel zeigt;
• 4 ist ein Flussdiagramm, das eine Routine zum Steuern eines Gebäudes gemäß dem ersten Beispiel der vorliegenden Erfindung zeigt;
• 5 ist ein konzeptionelles Diagramm, das ein zweites Beispiel des Steuerungssystems für das Fahrzeug, das die CO2-Auffangvorrichtung umfasst, zeigt;
• 6 ist ein Flussdiagramm, das eine Routine zum Steuern des Gebäudes gemäß dem zweiten Beispiel zeigt;
• 7 ist eine schematische Darstellung, die eine Struktur eines Bypass-Ventils gemäß dem dritten Beispiel zeigt;
• 8 ist ein Blockdiagramm, das Funktionen der elektronischen Steuerungseinheit des Steuerungssystems gemäß dem dritten Beispiel zeigt;
• 9 ist ein Flussdiagramm, das eine Routine zum Steuern des Bypass-Ventils gemäß dem dritten Beispiel zeigt;
• 10 ist ein konzeptionelles Diagramm, das ein viertes Beispiel des Steuerungssystems für das Fahrzeug, das die CO2-Auffangvorrichtung umfasst, zeigt;
• 11 ist ein Blockdiagramm, das Funktionen der elektronischen Steuerungseinheit des Steuerungssystems gemäß dem vierten Beispiel zeigt;
• 12 ist ein Flussdiagramm, das eine Routine zum Umwandeln von aufgefangenem CO2 in Kraftstoff gemäß dem vierten Beispiel zeigt;
• 13 ist ein Flussdiagramm, das eine Routine zum Umwandeln von aufgefangenem CO2 in Kraftstoff gemäß dem fünften Beispiel zeigt; und
• 14 ist ein Flussdiagramm, das eine Routine zum Verschieben der Umwandlung des aufgefangenen CO2 in Kraftstoff gemäß dem sechsten Beispiel zeigt.

Features, aspects and advantages of exemplary embodiments of the present invention will become more fully understood with reference to the following description and accompanying drawings, which are not intended to limit the invention in any way.

• 1 Fig. 13 is a conceptual diagram showing a first example of the control system for the vehicle including the CO2 trap;
• 2 Fig. 13 is a block diagram showing functions of an electronic control unit of the control system according to the first example;
• 3 Fig. 13 is a flowchart showing a routine for controlling the vehicle according to the first example;
• 4th Fig. 3 is a flowchart showing a routine for controlling a building according to the first example of the present invention;
• 5 Fig. 13 is a conceptual diagram showing a second example of the control system for the vehicle including the CO2 trap;
• 6th Fig. 3 is a flowchart showing a routine for controlling the building according to the second example;
• 7th Fig. 3 is a schematic diagram showing a structure of a bypass valve according to the third example;
• 8th Fig. 3 is a block diagram showing functions of the electronic control unit of the control system according to the third example;
• 9 Fig. 3 is a flowchart showing a routine for controlling the bypass valve according to the third example;
• 10 Fig. 13 is a conceptual diagram showing a fourth example of the control system for the vehicle including the CO2 trap;
• 11 Fig. 3 is a block diagram showing functions of the electronic control unit of the control system according to the fourth example;
• 12th Fig. 13 is a flowchart showing a routine for converting trapped CO2 into fuel according to the fourth example;
• 13th Fig. 3 is a flowchart showing a routine for converting trapped CO2 into fuel according to the fifth example; and
• 14th Fig. 13 is a flowchart showing a routine for postponing the conversion of captured CO2 into fuel according to the sixth example.

DETAILED DESCRIPTION OF THE PREFERRED

DESIGN (S)

Embodiments of the present invention are described below with reference to the accompanying drawings. It should be noted that the embodiments shown below only show examples of the present invention are not intended to limit a scope of the present invention.

(First example)

1 Figure 3 shows a first example of the present invention. The control system according to the present invention is applied to a vehicle Ve having a CO 2 collecting device 1 for collecting carbon dioxide (hereinafter referred to as CO 2) from the air in buildings. According to the present invention, the definition of "building" includes homes, offices, premises, factories, warehouses, and so on. 1 Fig. 13 schematically shows structures of the vehicle Ve with the CO2 trap 1 to which the control system according to the embodiment of the present invention is applied, and a building 7th to which the vehicle Ve is connected. The vehicle Ve includes an internal combustion engine (hereinafter referred to simply as “engine”) 2 as a drive machine, a pump 3 that sucks in a gas stream containing CO2 and discharges the gas stream to the CO2 trap 1, and a battery 4th that provides the electrical energy needed to collect the CO2.

The CO2 capture device 1 includes a CO2 absorber that captures CO2, and the captured CO2 can be temporarily stored in a CO2 tank. An exhaust pipe 6th extends from the engine 2 , and the CO2 trap 1 is with the exhaust pipe 6th connected. The CO2 capture device 1 not only collects CO2 from the engine 2 exhaust gases emitted during the drive, but also from the air in z. B. the vehicle interior. According to the in 1 The first example shown is the vehicle Ve in the vicinity of the building 7th parked around by a hose with the building 7th to be connected so that the CO2 is removed from the air in the building 7th is collected.

At least one ventilation device such as a fan 8th is located in a predetermined room (s) of the building 7th so that one through the fan 8th generated air flow from a ventilation opening 9 is discharged in order to be fed to the CO2 collecting device 1. Optionally, several vents can be used 9 in the building 7th be arranged. In this case the CO2 can be in the building 7th can be collected more effectively by multiple vehicles Ve. A stretch can 10 is in the building 7th arranged so that the vehicle Ve through a power cable to the socket 10 of the building 7th is connected. It can also be a solar panel 11 on a roof of the building 7th be arranged.

The one from the engine 2 to the exhaust pipe 6th Emitted exhaust gases are brought into contact with a collecting means or collecting agent held in the CO2 absorber 5, so that CO2 contained in the exhaust gases is collected by the collecting means. Furthermore, CO2 becomes in the air in the vehicle interior as well as in the airflow from the building 7th CO2 supplied through the hose is captured by the collecting agent held in the CO2 absorber 5. For example, CO2 can be captured by physical adsorption, physical absorption, chemical adsorption and cryogenic distillation, and the like.

For example, if physical adsorption is used, the exhaust gases or the air stream is brought into contact with a solid collecting agent such as activated carbon and zeolite held in the CO2 absorber 5 so that the CO2 contained in the exhaust gases can be absorbed by the The capture agent is adsorbed, and the capture agent is heated or depressurized to desorb the CO2 from the capture agent.

When the physical absorption is used, the exhaust gases or the air stream are brought into contact with an absorption solution such as methanol and ethanol kept under high pressure at low temperatures in the CO2 absorber 5, and the absorption solution is heated or its pressure reduced to desorb the CO2 from the absorption solution.

When the chemical adsorption is used, the exhaust gases or the air stream is brought into contact with an absorption solution such as amine held in the CO2 absorber 5 so that the CO2 contained in the exhaust gases is adsorbed on the trapping solution, and the Receiving solution is heated to desorb CO2 from the receiving solution.

When cryogenic distillation is used, the CO2 contained in the exhaust gases or the air stream is liquefied by compressing and cooling the exhaust gases, and the liquefied CO2 is distilled to capture the CO2.

According to the exemplary embodiment of the present invention, physical adsorption is used to capture the CO2 in the exhaust gases and in the atmosphere by the CO2 trap 1. In this case, the CO2 can be captured by the capture means at low temperatures and released by the capture means at high temperatures. Otherwise, the CO2 can also be captured by the capture means under high pressure and released by the capture means when the pressure is reduced.

To control the CO2 collecting device 1, the control system is equipped with a electronic control unit (hereinafter abbreviated as "ECU") 12 equipped as a control unit, which in 2 is shown. The ECU 12th comprises a microcomputer as its main component adapted to calculate calculations based on incoming data and data stored in advance, and a calculation result is e.g. B. transmitted to the CO2 collecting device 1 in the form of a command signal. For example, the ECU controls 12th the supply of the exhaust gases or the air flow to the CO2 absorber 5 and both absorption and desorption of the CO2 to / from the CO2 absorber 5.

For this purpose, data collected by various sensors, including a recovered amount of CO2 and so on, is sent to the ECU 12th Posted. Like it in 2 shown includes the ECU 12th : a CO2 quantity estimator 13th which calculates an amount of CO2 captured by (or adsorbed on) the CO2 absorber 5 based on the incoming data; a connection determiner 14th , the connection between the vehicle Ve and the ventilation opening 9 of the building 7th certainly; a power supply control device 15th that controls the electrical energy supplied to the CO2 trap 1; and a pump controller 16 that the pump 3 controls. To get the CO2 from the air in the building 7th by the CO2 collecting device 1 of the vehicle Ve, the vehicle Ve and the building can 7th communicate with each other.

Under normal conditions, a concentration of CO2 in the air in the building falls 7th in a predetermined range which is determined experimentally. Therefore, an amount of CO 2 supplied to the CO 2 collecting device 1 can be obtained based on a flow rate of the air flow passing through the CO 2 collecting device 1. In contrast, a capacity of the collecting means of the CO2 absorber 5 varies depending on z. B. a temperature and a flow rate of the air stream. However, the capacity of the collecting means of the CO2 absorber 5 can be obtained in any situation based on an experimental result. Accordingly, an amount of the CO2 captured by the CO2 absorber 5 per unit time based on the flow rate and temperature of the air flow flowing into the CO2 absorber 5 per unit time and a total amount of the CO2 absorber 5 can be obtained CO2 captured can be obtained by integrating the amount of CO2 captured by the CO2 absorber 5 per unit of time. In order to recover an amount of the CO2 captured by the CO2 absorber 5, a flow rate sensor that measures a flow rate of the air flow flowing through the CO2 absorber 5 is arranged upstream or downstream of the CO2 absorber 5. A storage tank (not shown) can optionally be provided in order to temporarily hold the CO2 desorbed by the CO2 absorber 5. In this case, an amount of the CO2 desorbed from the CO2 absorber 5 can be detected by measuring a pressure in the storage tank using an additional pressure sensor or the like.

Thus, the CO2 in the exhaust gases and in the air can be captured by the CO2 collecting device 1 of the vehicle Ve. According to the present invention, the control system is designed to remove not only CO2 from the exhaust gases during the propulsion of the vehicle Ve, but also from the air in the building 7th When the vehicle Ve is parked, collect it by the CO2 capture device 1. For this purpose, according to the first example, the ECU controls 12th the vehicle Ve by executing the in 3 routine shown.

In step S1 it is determined whether the vehicle Ve with the vent 9 of the building 7th is connected to CO2 from the air in the building 7th to collect. Such a determination is made in step S1 by the connection determiner 14th . When the vehicle ve not using the vent 9 of the building 7th connected, so the answer from step S1 Is NO, the routine returns without executing any particular control.

In contrast, the routine moves with step S2 proceeded to a request to activate the fan 8th from the ECU 12th to a control system of the building 7th to send when the vehicle Ve with the vent 9 of the building 7th connected, so the answer from step S1 YES is. In other words, in step S2 becomes a requirement to expel air from the building 7th from the ECU 12th to the building's control system 7th transfer.

After starting to activate the fan 8th will be in step S3 determines whether the pump 3 from the building 7th to be powered to remove CO2 from the air in the building 7th to collect. In other words, in step S3 it determines whether electrical energy is used to collect CO2 from the air in the building 7th is required of the pump 3 from the building 7th or from the battery 4th of the vehicle Ve is to be supplied. For example, if a battery charge level 4th is lower than a predetermined level, the answer will be from step S3 Be YES. In contrast, the answer will be from step S3 Be NO when an electrical load in the building is high, that is, when there is an electrical consumption in the building 7th is high. When the pump 3 from the building 7th the electrical energy is not supplied, so the answer from step S3 Is NO, the routine advances to step S4 proceeded to the pump 3 with power from the battery 4th to supply, reducing the flow of air from the building 7th the CO2 collecting device 1 of the vehicle Ve is supplied.

If, on the contrary, the pump 3 from the building 7th with the electrical energy to be supplied, so the answer from step S3 If YES, the routine moves with step S5 proceeded to the pump 3 with the electrical energy from the building 7th to supply, reducing the flow of air from the building 7th the CO2 collecting device 1 of the vehicle Ve is supplied. When the pump 3 with the electrical energy from the building 7th is supplied, it is advantageous to use the pump 3 z. B. at night with the electrical energy from the building 7th to be supplied when the electricity generation of the electricity provider exceeds the demand for electrical energy and thus the price of the electrical energy supplied by the electricity provider is lower.

In each of these cases it is beneficial to remove CO2 from the air in the building 7th to collect at a time when the concentration of CO2 in the air is high. If, for example, the building 7th is a residential building, it is beneficial to collect CO2 after dark when a resident is using electrical appliances, gas stoves, and the like. As a result, CO2 can be efficiently captured while reducing the power consumption for collecting the CO2.

Then in step S6 determines whether an amount of the CO2 adsorbed (or stored) on the CO2 absorber 5 reaches a threshold limit value. Such a determination in step S6 can through the CO2 quantity estimator 13th or by measuring an amount of the CO2 stored in the CO2 tank. If the amount of CO2 adsorbed on the CO2 adsorber 5 has not yet reached the threshold limit value, the answer from step S6 Is NO, the determination is made in step S6 repeated until the collection of CO2 from the air in the building 7th is complete or the amount of CO2 adsorbed on the CO2 adsorber 5 has reached the threshold limit value.

In contrast, the routine continues to stop the pump 3 and to send a request to stop the fan 8th from the ECU 12th to the building's control system 7th with step S7 continues when the amount of CO2 adsorbed on the CO2 adsorber 5 has reached the threshold limit value, so that the answer from step S6 YES is. That is, since the amount of CO2 adsorbed on the CO2 adsorber 5 has reached the threshold limit, the collection of CO2 from the air in the building is stopped 7th completed. When the amount of CO2 adsorbed on the CO2 adsorber 5 has not yet reached the threshold limit value, but the collection of CO2 from the air in the building 7th has already been completed, the pump will 3 and the fan 8th stopped. The routine then returns.

If in step S2 the request to activate the fan 8th is transferred, the in 4th routine shown executed to the building 7th to control. In step S10 it is determined whether the control system of the building 7th the request to activate the fan 8th received. When the control system of the building 7th the request to activate the fan 8th has not yet received, so the answer from step S10 Is NO, the routine returns without executing any particular control.

In contrast, the routine moves with step S11 continued when the control system of the building 7th the request to activate the fan 8th received so the answer from step S10 YES is to the fan 8th to put in rotation and the ECU 12th to inform about the fact that the fan 8th is set in rotation.

Then in step S12 determines whether a request to stop the fan 8th from the ECU 12th to the building's control unit 7th is transmitted. As described above, the request to stop the fan becomes 8th in step S7 the above-mentioned routine that is included in 3 shown is transmitted. If the control device of the building 7th the request to stop the fan 8th has not yet received, so the answer from step S12 Is NO, the determination is made in step S12 repeats until the ECU 12th the request to stop the fan 8th transmits. In contrast, the routine moves with step S13 continued when the control device of the building 7th the request to stop the fan 8th received so the answer from step S12 YES is to the rotation of the fan 8th and then the routine returns.

Thus, according to the first example of the present invention, CO2 can be extracted from the air in the building 7th collected by the airflow from the vent 9 of the building 7th to the CO2 trap 1 while the vehicle Ve is parked. Furthermore, the pump 3 with the electrical energy needed to collect CO2 from the air in the building 7th is required, not just from the battery 4th but also from the building 7th are supplied. According to the first example of the present invention, CO2 can therefore be extracted from the air in the building 7th can be safely collected even if the battery is off 4th or the building 7th is not in a state in which there is a supply of the pump 3 with the electrical energy is possible.

For these reasons, there may be several ways of capturing CO2 by the CO2 capture device 1 in order to prevent global warming.

(Second example)

According to the second example of the present invention, the control system is designed to preferentially collect CO2 from the air in a predetermined room (or space). For example, the control system as described in 5 shown, be designed to collect CO2 from the air of only one room in which a person is staying. According to the second example, the in 3 The routine shown in FIG 6th The routine shown is for controlling the building 7th executed. The following explanation describes the steps that are related to those in the in 3 shown routine are common, assigned common numbers, and explanations of the common steps are simplified.

In step S10 it is determined whether the control system of the building 7th the request to activate the fan 8th received. When the control system of the building 7th the request to activate the fan 8th received so the answer from step S10 If YES, the routine moves with step S20 to determine a room (s) in which a person is staying. Then, in step S30 , becomes the fan 8th activated, and the control system of the building 7th notifies the ECU 12th about that the fan 8th is set in rotation.

When the notification is received, the ECU controls 12th Ve the vehicle so that there is CO2 only from the air in the room in which a person is staying through the in 3 procedure shown collects. Then, in step S12 , it is determined whether in step S7 the in 3 routine shown a request to stop the fan 8th from the ECU 12th to the building's control unit 7th is transmitted. If the control device of the building 7th the request to stop the fan 8th received so the answer from step S12 If YES, the routine moves with step S13 continued to the rotation of the fan 8th stop, whereupon the routine returns. According to the second example, it is also possible to collect CO2 only from the air in a room where the concentration of CO2 in the air is high.

Thus, according to the second example, CO2 is preferably collected from the air in the room in which a person is staying. According to the second example, therefore, CO2 from the room where the concentration of CO2 in the air is high can be efficiently collected while the building uses electricity 7th is decreased.

(Third example)

According to the third example of the present invention, the ventilation opening 9 of the building 7th a bypass valve 17th include that in 7th is shown so as to be a flow direction of the building 7th to control the flowing air stream. When the amount of CO2 adsorbed on the CO2 absorber 5 has reached the threshold limit value, the CO2 absorber 5 is no longer able to capture the CO2. In this case, if the collection of CO2 is continued, the CO2 collecting device 1 may be damaged. To prevent the CO2 collecting device 1 from being damaged, the bypass valve is 17th according to the third example in the ventilation opening 9 arranged to selectively direct airflow from the building 7th in the direction of the CO2 collecting device 1 or into the atmosphere. For example, the bypass valve is used 17th controlled so that the air flow flows into the CO2 capture device 1 when there is CO2 from the air in the building 7th collects. That is, a target of the airflow coming out of the vent 9 of the building 7th can be selectively switched between the CO2 capture device 1 and the atmosphere.

Functions of the ECU 12th according to the third example, in 8th shown. Like it in 8th shown includes the ECU 12th according to the third example also a valve control device 18th . Detailed explanations of the other functions that are available with the in 2 are identical are omitted. To the bypass valve 17th to control, the ECU performs 12th in the 9 routine shown. In step S50 it is determined whether an amount of CO2 adsorbed on the CO2 absorber 5 has reached the threshold limit value. For example, such a determination can be made in step S50 based on an amount of CO2 captured by the CO2 trap 1 determined by the CO2 amount estimator 13th will be transmitted. Instead, such a determination can be made in step S50 can also be made based on an amount of the airflow flowing through the CO2 trap 1, a time accumulated for collecting CO2 by the CO2 trap 1, a pressure of the airflow flowing into the CO2 trap 1, and so on.

If the amount of CO2 adsorbed on the CO2 adsorber 5 has not yet reached the threshold limit value, the answer from step S50 Is NO, the routine returns. In contrast, the routine moves with step S60 proceeded to the bypass valve 17th so control that of the ventilation opening 9 discharged air flow into the Atmosphere is released when the amount of CO2 adsorbed on the CO2 adsorber 5 has reached the threshold limit value, so that the answer from step S50 YES is.

Thus, according to the third example, that of the vent becomes 9 discharged air flow by controlling the bypass valve 17th Released into the atmosphere when the amount of CO2 adsorbed on the CO2 adsorber 5 has reached the threshold limit. According to the third example, therefore, the air flow is not excessively supplied to the CO2 trap 1, so that the CO2 trap 1 is prevented from being damaged. In other words, the CO2 trap 1 can be protected. Furthermore, the rooms of the building 7th ventilated when the CO2 capture device 1 is not connected to the building 7th is connected or the CO2 collecting device 1 is no longer suitable for collecting the CO2.

(Fourth example)

It is known in the art that CO 2 can be converted into fuel such as methane, ethene, methanol, ethanol or the like by reacting CO 2 with hydrogen, water, metal hydride or the like. In order to convert CO2 captured by the CO2 collecting device 1 into fuel, the control system according to the fourth example further comprises a CO2 converter 19th who is in 10 is shown. Functions of the ECU 12th according to the fourth example, in 11 shown. Like it in 11 shown includes the ECU 12th according to the third example, a CO2 converter control device 20.

To convert the CO2 captured by the CO2 capture device into fuel, the ECU performs 12th in the 12th routine shown. It should be noted here that the CO2 collecting device 1 can convert not only CO2 collected from the exhaust gases, but also CO2 collected from the air into fuel.

A large amount of electrical energy is used to convert CO2 into fuel. Therefore, it is advantageous to convert CO 2 in a state in which the CO 2 collecting device 1 has collected a certain amount of CO 2. To do this, step in S100 determines whether an amount of CO2 adsorbed on the CO2 absorber 5 of the CO2 collecting device 1 is equal to or greater than a predetermined value α. For example, the predetermined value α can be set to a value which corresponds to at least 50 percent of a capacity of the CO2 absorber 5. When the amount of CO2 adsorbed on the CO2 adsorber 5 is less than the predetermined value α, the answer of step S100 Is NO, the routine returns without executing any particular control.

In contrast, the routine moves with step S110 proceeded to determine if the vehicle Ve with the stretch can 10 of the building 7th is connected when the amount of CO2 adsorbed on the CO2 adsorber 5 is equal to or greater than the predetermined value α, so the answer of step S100 YES is. As described above, a large amount of electrical energy is required to convert CO2 into fuel. Hence it is beneficial to use the CO2 converter 19th to supply electrical energy that contains electrical energy generated by the solar panel 11 from the building 7th was generated. As a result, the routine returns without executing any particular control when the vehicle Ve is not equipped with the wall socket 10 connected, so the answer from step S110 No is.

In contrast, the routine moves with step S120 continue to move the CO2 captured by the CO2 capture device 1 through the CO2 converter 19th convert into fuel when the vehicle ve with the electric can 10 connected, so the answer from step S110 YES is. In step S120 becomes especially the CO2 converter 19th activated to remove the CO2 captured by the CO2 collecting device 1, e.g. B. by reaction of CO2 with z. B. to convert hydrogen into methane.

Then in step S130 determines whether the amount of CO2 adsorbed on the CO2 adsorber 5 as a result of the conversion of the CO2 captured by the CO2 trap device 1 into fuel is reduced to a value equal to or smaller than another predetermined value β. In other words, a termination of the conversion of CO2 will be in step S130 certainly. For example, another predetermined value β can be set to zero or substantially zero. If the amount of CO2 adsorbed on the CO2 adsorber 5 is still greater than another predetermined value β, the answer of step S130 Is NO, the determination is made in step S130 repeatedly until the amount of CO2 adsorbed on the CO2 adsorber 5 is reduced to a value which is equal to or smaller than another predetermined value β. In contrast, the routine moves with step S140 proceeded to the CO2 converter 19th to stop when the amount of CO2 adsorbed on the CO2 adsorber 5 has been reduced to a value which is equal to or smaller than a further predetermined value β, so that the answer from step S130 YES is.

Thus, according to the fourth example of the present invention, the resulting fuel can be used to operate the engine 2 can be used, so that the fuel cost is reduced. That is, the Emission of CO2 into the atmosphere can be as in the aforementioned
Examples can be reduced, and in addition, the captured CO2 to be disposed of can be used to save fuel costs.

(Fifth example)

As described above, a large amount of electrical energy is required to convert CO2 into fuel. Therefore, it is advantageous to convert the CO2 captured by the CO2 trap 1 into fuel using cheaper electrical energy. For example, especially during the day, a large amount of the cheaper electrical energy is drawn from the solar panel 11 generated provided the building 7th with the solar panel mentioned above 11 Is provided. In this case, therefore, it is advantageous to use the CO2 collected by the CO2 collecting device 1 by using the CO2 collected by the solar collector 11 on the building 7th Convert electrical energy generated during the day into fuel. Furthermore, it is more advantageous to convert the CO 2 collected by the CO 2 collecting device 1 into fuel in large quantities at one time. Therefore, in order to convert a larger amount of the CO2 collected by the CO2 trap 1 into fuel at one time, a storage tank (not shown) may be in the building 7th be provided to temporarily store the CO2 collected by the CO2 capture device of the vehicle Ve at a time other than during the day.

In contrast, the price of electricity sold by utility companies may be lower at night when supply exceeds demand. If that's through the CO2 capture device of the vehicle Ve in the building 7th and CO 2 collected at night is converted using the cheaper electricity provided by the power company, the CO 2 collected by the CO 2 collecting device 1 at a time other than at night can be temporarily stored in the storage tank. In the explanation below is that by the solar panel 11 generated electrical energy and the electrical energy available at a lower price is called the "cheaper energy". Further, according to the fifth example, the control system is designed to convert the CO 2 captured by the CO 2 collecting device 1 into fuel in large quantities at a time using the cheaper energy. For this purpose, the control system executes the in 13th routine shown.

In step S200 it is determined whether it is possible to discharge the CO2 collected by the CO2 collecting device 1 into the storage tank. That is, in step S200 an available capacity in the storage tank is determined by measuring an instantaneous accumulation of the CO2 in the storage tank. When the storage tank is almost full, the CO2 collected by the CO2 collecting device 1 cannot be discharged into the storage tank. In contrast, the CO2 collected by the CO2 collecting device 1 can be discharged into the storage tank when the available capacity of the storage tank is large.

If the CO2 collected by the CO2 collecting device 1 cannot be discharged into the storage tank, the answer from step S200 Is NO, the routine advances to step S210 continue to convert the CO2 stored in the storage tank through the CO2 converter 19th of the vehicle Ve that with the building 7th connected using the in the building 7th convert available cheaper energy into fuel. As a result, the CO2 captured by the CO2 absorber 5 can be put into the storage tank of the building 7th be discharged.

In contrast, the routine moves with step S220 to discharge the CO2 collected by the CO2 collecting device 1 into the storage tank when the CO2 collected by the CO2 collecting device 1 can be discharged into the storage tank, so the answer of step S200 YES is. Then in step S230 the CO2 in the storage tank through the CO2 converter 19th of the vehicle Ve that with the building 7th connected using the in the building 7th available cheaper energy converted into fuel.

(Sixth example)

According to the sixth example of the present invention, the control system is further configured to capture the CO2 captured by the CO2 trap 1 using the cheaper energy in the building 7th that is not equipped with the storage tank to be converted into fuel. For this purpose, the control system executes the in 14th routine shown. As described above, a large amount of electric power is required to convert CO2 into fuel, so it is advantageous to convert the CO2 into fuel in the state where the CO2 trap 1 has captured a certain amount of CO2 . To do this, step in S300 determines whether an amount of CO2 adsorbed on the CO2 absorber 5 of the CO2 collecting device 1 is equal to or greater than z. B. the above-mentioned predetermined value α which is set to the value which is e.g. B. 50 percent of the capacity of the CO2 absorber 5 corresponds. When the amount of CO2 adsorbed on the CO2 adsorber 5 is less than the predetermined value α, the answer of step S300 Is NO, the CO2 captured by the CO2 trap 1 will not be converted into fuel. In this case, therefore, the routine returns without executing any particular control.

In contrast, when the amount of CO2 adsorbed on the CO2 adsorber 5 is equal to or greater than the predetermined value α, the routine runs, so the answer of step 300 YES is with step S310 proceed to determine if the cheaper energy is available. As described above, according to the present invention, the cheaper energy includes that from the solar collector 11 generated electrical energy and the reduced electrical energy supplied by the energy supply company. When the cheaper energy is available, so that's the answer by step 310 If YES, the routine moves with step S320 continue to move the CO2 captured by the CO2 capture device 1 through the CO2 converter 19th of the vehicle Ve that with the building 7th connected using the in the building 7th convert available, cheaper energy into fuel.

In contrast, the routine continues when the cheaper energy is not available, so the answer is from step 310 NO is with step S330 continues to determine if the conversion of the CO2 to fuel can be postponed until the cheaper energy becomes available. For example, the conversion of the CO2 into fuel can be postponed if the vehicle is not planned to be used with the building 7th is connected to use up to an estimated time when the cheaper energy will be available and when the amount of CO2 adsorbed on the CO2 adsorber 5 is slightly larger than the predetermined value α, but the capacity of the CO2 absorber 5 is still available.

If the conversion of the CO2 into fuel can be postponed, so the answer from step S330 Is YES, the determination is made in step S310 repeatedly until the cheaper energy is available. This means that the conversion of the CO2 into fuel can be postponed until the cheaper energy is available.

In contrast, the routine moves with step S340 if the conversion of the CO2 to fuel cannot be postponed, so the answer from step 330 No is. In step S340 the CO2 captured by the CO2 capture device 1, when it is necessary to immediately convert the CO2 captured by the CO2 capture device 1 into fuel, by the CO2 converter 19th of the vehicle Ve that with the building 7th is connected using the electrical energy obtained from the battery 4th is supplied, or the electrical energy at ordinary price that is supplied by the building 7th is converted into fuel. Nevertheless, the CO2 captured by the CO2 collecting device 1, if z. B. an owner of the vehicle Ve does not want to convert the CO2 captured by the CO2 collecting device 1 into fuel using the electrical energy at the usual price and the state of charge of the battery 4th is low, not converted to fuel at the moment. In this case, the CO2 captured by the CO2 trap 1 is converted into fuel on another occasion, around the vehicle Ve with the building 7th to connect when the cheaper energy is available.

Thus, according to the fifth example, when the cheaper energy is not available, the CO2 collected by the CO2 trap of the vehicle Ve can be stored in the storage tank located in the building 7th is located. According to the fifth example, therefore, a larger amount of the CO2 collected by the CO2 collecting device 1 can be stored in one by the CO2 converter 19th of the vehicle Ve that with the building 7th connected using the in the building 7th available, cheaper energy can be converted into fuel. That is, the cost required for converting the CO2 captured by the CO2 trap 1 into fuel can be reduced. According to the sixth example, the CO2 collected by the CO2 collecting device 1 can be passed through the CO2 converter 19th of the vehicle Ve using the in the building 7th Available, cheaper energy can be converted into fuel even if the building 7th does not have a storage tank. According to the fifth and sixth examples, therefore, fuel costs for driving the vehicle Ve can be saved.

Although the above exemplary embodiments of the present invention have been described, those skilled in the art will understand that the present invention is not intended to be limited to the exemplary embodiments described above, but various changes and modifications can be made within the scope of the present invention. For example, the pump can 3 and the CO2 converter 19th of the vehicle Ve also in the building 7th be arranged. In this case, the weight of the vehicle Ve can be reduced, so that it is possible to further save fuel costs for driving the vehicle Ve.

Furthermore, the control system and the CO2 collecting device 1 according to the present invention can be applied to an electric vehicle in which only one motor serves as the prime mover, an electric vehicle with a range extender in which a motor is operated only to generate electricity, an electric vehicle in which only a fuel cell assembly is used as a power source and a hybrid vehicle in which a prime mover includes an internal combustion engine and another motor can be used.

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• JP 2019190756 [0001]
• JP 2014509360 A [0003, 0004]

Claims (14)

Control system for a vehicle (Ve) with a CO2 capture device (1) which captures CO2 from a gas flow, characterized in that it comprises a control unit (12) which controls the vehicle (Ve), the control unit (5) being designed is to determine whether the vehicle (Ve) is connected to a predetermined building (7) and to collect CO2 from the air in the building (7) when the vehicle (Ve) is connected to the building (7) . Control system for the vehicle (Ve) with the CO2 capture device (1) Claim 1 , wherein the control device (12) is further designed to determine whether the CO2 capture device (1) should be supplied with electrical energy from the building (7) in order to collect the CO2 from the air in the building (7) to collect the CO2 from the air in the building (7) by supplying the CO2 capture device (1) with the electrical energy from the building (7) when the CO2 capture device (1) is supplied with the electrical energy from the Building (7) can be supplied, and to collect the CO2 from the air in the building (7) by the - collecting device (1) is supplied with electrical energy from a battery (4) of the vehicle (Ve) when the CO2 capture device (1) cannot be supplied with electrical energy from the building (7). Control system for the vehicle (Ve) with the CO2 capture device (1) Claim 2 , wherein the control device (12) is further designed to determine on the basis of a state of charge of the battery (4) and a power consumption in the building (7) whether the CO2 capture device (1) with the electrical energy from the building ( 7) should be supplied. Control system for the vehicle (Ve) with the CO2 capture device (1) according to one of the Claims 1 to 3 , wherein the control device (12) is further designed to determine a room of the building (7) in which a person is staying and to collect the CO2 from the air in the room of the building (7) in which the Preferred to stay. Control system for the vehicle (Ve) with the CO2 capture device (1) according to one of the Claims 1 to 4th wherein the control device (12) is further designed to determine a room of the building (7) in which the concentration of CO2 in the air is high and to collect the CO2 from the air in the room of the building (7) , in which the concentration of CO2 in the air is preferably high. Control system for the vehicle (Ve) with the CO2 capture device (1) according to one of the Claims 1 to 5 , wherein the control device (12) is further designed to collect the CO2 from the air in the building (7) when the costs of the electrical energy supplied by the building (7) are lower. Control system for the vehicle (Ve) with the CO2 capture device (1) according to one of the Claims 1 to 6th , wherein the control device (12) is further designed to collect the CO2 from the air in the building (7) when the supply of electrical energy exceeds the demand for electrical energy. Control system for the vehicle (Ve) with the CO2 capture device (1) according to one of the Claims 1 to 7th further comprising: a CO2 converter (19) that converts the CO2 collected by the CO2 collecting device (1) into fuel, wherein the control device (12) is further configured to convert the CO2 collected by the CO2 collecting device (1) Convert CO2 into fuel when an amount of CO2 adsorbed on the CO2 capture device (1) is equal to or greater than a predetermined value (α). Control system for the vehicle (Ve) with the CO2 capture device (1) Claim 8 , wherein the control device (12) is further designed to determine whether it is possible to discharge the CO2 collected by the CO2 capture device (1) into a storage tank that is located in the building (7) and that by the CO2 collecting device (1) to discharge the collected CO2 into the storage tank and to convert the CO2 in the storage tank into fuel, if it is possible to discharge the CO2 collected by the CO2 collecting device (1) into the storage tank. Control system for the vehicle (Ve) with the CO2 capture device (1) Claim 9 , wherein the control device (12) is further designed to determine that cheaper electricity is available if it is not possible to discharge the CO2 collected by the CO2 capture device (1) into the storage tank, and that by the CO2- Capture device (1) to convert collected CO2 into fuel using the cheaper energy when the cheaper energy is available. Control system for the vehicle (Ve) with the CO2 capture device (1) Claim 10 wherein the controller (12) is further configured to determine whether a conversion of the CO2 collected by the CO2 capture device (1) to fuel can be postponed until the cheaper energy becomes available when the cheaper energy is not available, postpone the conversion of the CO2 collected by the CO2 capture device (1) to fuel until the cheaper energy becomes available, and convert the CO2 collected by the CO2 capture device (1) into fuel by the cheaper energy when the cheaper energy is available is when the conversion of the CO2 collected by the CO2 collecting device (1) into fuel can be postponed, and converting the CO2 collected by the CO2 collecting device (1) into fuel by an electrical energy other than the cheaper energy when the conversion of the CO2 collected by the CO2 capture device (1) cannot be shifted into fuel. Control system for the vehicle (Ve) with the CO2 capture device (1) Claim 11 wherein the control unit (12) is further designed to determine, based on a plan to use the vehicle (Ve), whether the conversion of the CO2 collected by the CO2 capture device (1) into fuel should be postponed. Control system for the vehicle (Ve) with the CO2 capture device (1) according to one of the Claims 1 to 12th further comprising: a bypass valve (17) that changes a destination of the air flowing from the building (7) between the CO2 trap device (1) and the atmosphere, the controller (12) being further configured to determine an amount of CO2 currently adsorbed on the CO2 capture device (1) when the CO2 is collected from the air in the building (7), and to control the bypass valve (17) so that the Air discharged from the building (7) is released into the atmosphere when the amount of CO2 adsorbed on the CO2 capture device (1) has reached a threshold limit. Control system for the vehicle (Ve) with the CO2 capture device (1) according to one of the Claims 1 to 13th , wherein the control unit (12) is further designed to convert the CO2 collected by the CO2 capture device (1) into fuel when the vehicle Ve is parked.

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