Motor vehicle with an electric drive and use of a motor vehicle

Abstract

Motor vehicle (1) with an electric drive (2) and with at least one battery system (3) for supplying energy to the drive (2). The motor vehicle (1) is equipped with a vehicle-mounted separator (4) for separating carbon dioxide from the Earth's atmosphere.

Description

[0001] The present invention relates to a motor vehicle with an electric drive and with at least one battery device for supplying energy to the drive, as well as to a use of a motor vehicle.

[0002] In recent years, an increasing number of passenger cars designed as battery-electric vehicles (EVs) have been registered. These vehicles, at least locally, do not emit carbon dioxide (CO2). One way to keep the overall CO2 emissions of such vehicles low is to charge their batteries with electricity generated from renewable sources.

[0003] In contrast, the object of the present invention is to further improve the CO2 balance of motor vehicles with electric drive systems.

[0004] This object is achieved by a motor vehicle having the features of claim 1. A use of a motor vehicle is the subject of claim 15. Preferred developments of the invention are the subject of the dependent claims. Further advantages and features of the present invention will become apparent from the general description and the description of the exemplary embodiment.

[0005] The motor vehicle according to the invention comprises an electric drive and at least one battery device for supplying energy to the drive. The motor vehicle comprises at least one (permanently) installed separation device on the vehicle for separating carbon dioxide (directly) from the Earth's atmosphere.

[0006] The present invention offers many advantages. A significant advantage is the capture device installed on the motor vehicle. This can significantly improve the vehicle's carbon footprint. The invention even makes it possible to realize CO2-negative electromobility, or negative emission mobility (NEM). Electric vehicles constantly move through the ambient air while driving and are therefore particularly advantageous at capturing carbon dioxide from the Earth's atmosphere.

[0007] The separation device is preferably suitable and designed to capture atmospheric air from the environment of the motor vehicle (ambient air) and purify the captured air, thereby at least partially removing the carbon dioxide contained in the captured air and discharging the purified air at least partially (and preferably completely) (directly) back into the environment of the motor vehicle. In particular, the separation device can be operated according to the Direct Air Capture (DAC) process.

[0008] It is also possible and advantageous for a portion of the purified air to be used to ventilate a vehicle interior. In this case, the separation device has, in particular, a switchable connecting duct to the vehicle interior. In particular, the separation device is suitable and designed to separate carbon dioxide from the earth's atmosphere, regardless of the carbon dioxide concentration in the interior of the motor vehicle.

[0009] It is preferred and advantageous that the separation device can be or is supplied with electrical energy by means of the battery device. In particular, the energy requirement of the separation device during travel can be fully provided by the battery device.

[0010] In an advantageous development, the separation device comprises at least one filter device with at least one filter. In particular, the separation device is suitable and designed to at least partially adsorb and / or absorb the carbon dioxide contained in the ingested air by means of the filter device. In particular, the filter comprises at least one (chemical) sorbent for adsorbing and / or absorbing the carbon dioxide. In particular, the separation device is suitable and designed to guide the ingested air to the filter device so that the carbon dioxide can be bound by the filter through adsorption and / or absorption.

[0011] The at least one filter of the filter device preferably comprises at least carbon and / or metal-organic frameworks (MOF) as filter material. Filter materials other than CO2 sorbents are also possible. In particular, the filter is designed to be regenerable.

[0012] It is preferred and advantageous for the separation device to comprise at least one storage device. In particular, the separation device is suitable and designed to at least partially store the carbon dioxide extracted from the Earth's atmosphere in the storage device. In particular, the separation of the carbon dioxide also includes storing the carbon dioxide in the storage device.

[0013] The storage device preferably comprises at least one removable storage unit. In particular, the stored carbon dioxide can be reused and / or disposed of by removing and preferably replacing the storage unit. The storage unit can comprise a storage container and / or a storage structure or be designed as such. In particular, the storage unit can be removed with the least possible servicing effort. In particular, the storage unit can be removed non-destructively. In particular, the storage unit can be removed without the need for tools.

[0014] It is possible and advantageous for the storage device to be provided at least partially by the filter device. In particular, the adsorbed and / or absorbed carbon dioxide can be stored, at least partially, in the at least one filter. In particular, the at least one filter provides the removable storage unit. It is also possible for the storage unit to be formed separately from the filter. Then, for example, during filter regeneration, the carbon dioxide can be separated from the filter and transferred to the storage unit and, for example, a storage container.

[0015] In an advantageous development, the separation device comprises at least one regeneration device. The regeneration device is preferably suitable and designed to at least partially regenerate the at least one filter in order to maintain the absorption capacity of the filter (for as long as possible). In particular, the regeneration device is suitable and designed to heat the filter and / or change the pressure for the regeneration of the filter. It is possible for the regeneration device to be suitable and designed to carry out other suitable regeneration measures. For example, the carbon dioxide can be separated from the sorbent of the filter by means of the regeneration device by supplying energy, in particular heat, and / or by supplying chemicals.The regeneration device can be suitable and designed to transfer the carbon dioxide separated by the filter to the storage device.

[0016] The regeneration device is preferably suitable and configured to automatically regenerate the filter. In particular, the regeneration device is suitable and configured to carry out the regeneration at least as a function of a sensor-monitored filter capacity (via a sensor device) and / or at least one other parameter. Such a parameter can be, for example, an operating state of the separation device and / or a (stored) user input or the like. In particular, the separation device comprises at least one sensor device for monitoring the filter capacity.

[0017] The separation device comprises, in particular, at least one inlet for receiving air from the Earth's atmosphere and / or at least one outlet for discharging the purified air into the Earth's atmosphere. For example, the inlet and / or outlet are arranged in a vehicle outer skin and / or on a vehicle component concealed by the vehicle outer skin and in flow communication with the ambient air.

[0018] It is preferred and advantageous for the separation device to have at least one blower device for actively drawing in the air (particularly via the inlet). In addition to a blower, the blower device also includes, in particular, a fan and / or compressor. In particular, the blower device is suitable and designed to convey the captured air through the filter device.

[0019] It is possible and advantageous for the air to be taken in to be supplied to the separation device at least partially by means of a wind generated by the movement of the motor vehicle. In particular, the air to be taken in can be pushed and / or sucked into the inlet by the wind. In particular, the inlet is directed against the wind (and in the direction of travel) so that the air can be pushed into the inlet. It is also possible for an opening fluidically connected to the inlet and, for example, the outlet to be oriented toward the wind such that air can be sucked into the inlet by means of the Venturi effect.

[0020] In an advantageous development, the separation device comprises at least one user interface. In particular, the separation device is suitable and configured to display user information about an operating state of the separation device via the user interface and / or to transmit it to a network component and / or a mobile terminal. Preferably, the separation device is suitable and configured to receive at least one user input via the user interface. In particular, the user input comprises at least partially manual control of the separation device.

[0021] The user information is taken, in particular, from a group of user information, including: purified air volume, amount of captured carbon dioxide, filter status and preferably capacity, energy consumption, CO2 content of the ingested and / or purified air. A quantity is also understood, in particular, to include volume, volume flow, mass, and / or mass flow.

[0022] The inventive use utilizes a motor vehicle to reduce the carbon dioxide content of the Earth's atmosphere. Such a use of the motor vehicle can also achieve the above-stated object particularly advantageously. In particular, the motor vehicle is designed as previously described for the motor vehicle according to the invention. In particular, the motor vehicle comprises an electric drive and at least one battery device for supplying energy to the drive. In particular, the motor vehicle comprises at least one vehicle-mounted separation device for separating carbon dioxide (directly) from the Earth's atmosphere. In particular, the motor vehicle is used for the Direct Air Capture (DAC) process.In particular, the reduction of the carbon dioxide content in the Earth's atmosphere takes place independently of a reduction of the carbon dioxide content in the interior of the motor vehicle and, in particular, not for the purpose of such a reduction.

[0023] The motor vehicle is designed, in particular, as a passenger car and preferably as an electric vehicle. The drive system comprises, in particular, at least one electric motor. The battery device is, in particular, a traction battery. The battery device is, in particular, designed as a high-voltage battery. In particular, the motor vehicle comprises at least one vehicle base structure. In particular, the separation device is (permanently) installed on the vehicle base structure. The vehicle base structure comprises, in particular, a body and other load-bearing components.

[0024] In particular, the separation device is suitable and designed to capture atmospheric air from the surroundings of the motor vehicle, at least while the vehicle is in motion, and to purify the captured air, at least while the vehicle is in motion. Additionally or alternatively, the separation can also be carried out at least temporarily while the vehicle is stationary and / or when the vehicle is parked (switched off). Within the scope of the present invention, ambient air is understood to mean, in particular, the air in the Earth's atmosphere.

[0025] Further advantages and features of the present invention will become apparent from the embodiments which are explained below with reference to the accompanying figures.

[0026] In the figure shows: Fig. 1 a purely schematic representation of a motor vehicle according to the invention.

[0027] The Fig.Figure 1 shows a motor vehicle 1 according to the invention, designed as an electric vehicle 10, which is used to reduce the carbon dioxide content of the Earth's atmosphere. The motor vehicle 1 comprises a drive system 2 with, for example, two electric motors 12 and a battery device 3 designed as a traction battery 13 for supplying energy to the drive system 2.

[0028] The motor vehicle 1 is equipped with a permanently installed separation device 4 for separating carbon dioxide directly from the Earth's atmosphere (DAC). The separation device 4 comprises an inlet 14 and an outlet 24, as well as a blower device 34 for actively drawing air into the inlet 14. The separation device 4 is integrated into the motor vehicle 1 in such a way that it positively influences the aerodynamics and minimizes the impact on weight and installation space.

[0029] The carbon dioxide contained in the ingested air is at least partially adsorbed and / or absorbed by a filter device 5. For this purpose, the filter device 5 is equipped, for example, with one or more filters 15. The air drawn in via the inlet 14 passes through the filter device 5, so that carbon dioxide is bound to the filter 15. The filter 15 here has, for example, activated carbon or metal-organic frameworks as the filter material.

[0030] The separation device 4 is designed here with a storage device 6 with a removable storage unit 16. This allows the carbon dioxide extracted from the Earth's atmosphere to be stored. By removing or replacing the storage unit 16, the stored carbon dioxide can be reused or disposed of.

[0031] In the embodiment shown here, the storage unit 16 is provided by at least one filter 15. If necessary, the filter 15 can be removed and the storage unit 16 emptied.

[0032] The separation device 4 is equipped with a regeneration device 7. This allows the filter 15 to be regenerated as needed to maintain its absorption capacity for as long as possible. For example, the filter is heated or a pressure change occurs.

[0033] The regeneration device 7 uses sensors to monitor the carbon dioxide content in the filter 15 and performs an automatic regeneration cycle as needed. This ensures the optimal sorption capacity of the filter device 15.

[0034] The separation device 4 thereby supplies the battery device 3 with electrical energy. Carbon dioxide separation can occur both while driving and when the vehicle is stationary or parked. The energy consumption of the separation device 4 is kept as low as possible to avoid unnecessarily impairing the range of the motor vehicle 1.

[0035] A user interface 44 is located in the cockpit, via which the separation device 4 can be controlled. For example, the user interface 44 includes a display that provides information about the status of the separation device 4 and enables manual control of the regeneration cycle and other user inputs. In addition to the display of the user interface 44, user information and user inputs can also be provided via a mobile device (e.g., a smartphone with an app).

Claims

[1] Motor vehicle (1), in particular passenger car, with an electric drive (2) and with at least one battery device (3) for supplying energy to the drive (2), characterized by at least one separation device (4) installed on the vehicle for separating carbon dioxide from the earth's atmosphere. [2] Motor vehicle (1) according to the preceding claim, wherein the separation device (4) is suitable and designed to take in atmospheric air from the environment of the motor vehicle (1) and to purify the taken-in air and, in the process, to at least partially remove the carbon dioxide contained in the taken-in air and to at least partially discharge the purified air back into the environment of the motor vehicle (1). [3] Motor vehicle (1) according to one of the preceding claims, wherein the separation device (4) can be supplied with electrical energy by means of the battery device (3). [4] Motor vehicle (1) according to one of the preceding claims, wherein the separation device (4) comprises at least one filter device (5) with at least one filter (15) and wherein the separation device (4) is suitable and designed to at least partially adsorb and / or absorb the carbon dioxide contained in the intake air by means of the filter device (5). [5] Motor vehicle (1) according to the preceding claim, wherein the at least one filter (15) comprises at least carbon and / or metal-organic frameworks (MOF) as filter material. [6] Motor vehicle (1) according to one of the preceding claims, wherein the separation device (4) comprises at least one storage device (6) and wherein the separation device (4) is suitable and designed to store the carbon dioxide extracted from the earth's atmosphere at least partially in the storage device (6). [7] Motor vehicle (1) according to the preceding claim, wherein the storage device (6) comprises at least one removable storage unit (16) so that the stored carbon dioxide can be reused or disposed of by removing and preferably replacing the storage unit (16). [8] Motor vehicle (1) according to one of the two preceding claims and claim 4, wherein the storage device (6) is provided at least partially by the filter device (5) and wherein the adsorbed and / or absorbed carbon dioxide can be stored, in particular at least partially, in the at least one filter (15) of the filter device (5). [9] Motor vehicle (1) according to claim 4, wherein the separation device (4) comprises at least one regeneration device (7) and wherein the regeneration device (7) is suitable and designed to at least partially regenerate the at least one filter (15) in order to maintain the absorption capacity of the filter (15), and for this purpose preferably to carry out a heating of the filter (15) and / or a pressure change. [10] Motor vehicle (1) according to the preceding claim, wherein the regeneration device (7) is suitable and designed to automatically regenerate the filter (15) and to carry out the regeneration at least as a function of a sensor-monitored filter capacity. [11] Motor vehicle (1) according to one of the preceding claims, wherein the separation device (4) has at least one inlet (14) for receiving the air from the earth's atmosphere and at least one outlet (24) for discharging the purified air into the earth's atmosphere. [12] Motor vehicle (1) according to one of the preceding claims, wherein the separation device (4) has at least one blower device (34) for actively sucking in the air. [13] Motor vehicle (1) according to one of the preceding claims, wherein the air to be collected can be supplied to the separation device (4) at least partially by means of a wind caused by a movement of the motor vehicle (1). [14] Motor vehicle (1) according to one of the preceding claims, wherein the separation device (4) comprises at least one user interface and wherein the separation device (4) is suitable and designed to display user information about an operating state of the separation device (4) by means of the user interface (44) and / or to transmit it to a network component and / or to a mobile terminal and wherein the separation device (4) is suitable and designed to receive at least one user input by means of the user interface (44) and wherein the user input comprises at least an at least partially manual control of the separation device (4). [15] Use of a motor vehicle (1), in particular according to one of the preceding claims, for reducing the carbon dioxide content of the earth's atmosphere, wherein the motor vehicle (1) comprises an electric drive (2) and at least one battery device (3) for supplying energy to the drive (2) and at least one separation device (4) installed on the vehicle for separating carbon dioxide from the earth's atmosphere.

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