Method for carrying out an automated charging process for a battery of a motor vehicle

Abstract

The invention relates to a method for carrying out an automated charging process for a battery of a motor vehicle within a parking space, comprising the following steps: Receiving a charging request to quickly charge the vehicle’s battery, Check whether a charging system assigned to the parking space can quickly charge the vehicle’s battery in accordance with the charging request, If no, check whether at least one other motor vehicle parked within the parking space and having another battery can provide electrical energy from its additional battery in order to use the electrical energy provided to quickly charge the battery of the motor vehicle in accordance with the charging request, if so, carrying out an automated charging process of the battery of the motor vehicle in accordance with the charging request using electrical energy provided by the at least one further motor vehicle from its further battery. The invention relates to a device, a charging system for a parking space, a parking space, a computer program and a machine-readable storage medium.

Description

[0001] The invention relates to a method for carrying out an automated charging process for a battery of a motor vehicle within a parking space, a device, a charging system for a parking space, a parking space, a computer program and a machine-readable storage medium. State of the art

[0002] The published patent application DE 10 2011 084 124 A1 discloses a method for navigating a vehicle in a parking lot, whereby an electric vehicle can be driven to a suitable location in the parking lot for charging.

[0003] Fast charging a motor vehicle battery, for example, refers to charging with a charging power of at least 50 kilowatts. However, for this to happen, a charging system must provide sufficient electrical energy and be able to deliver the appropriate power. Fast charging systems therefore typically supply direct current. Unlike a standard household wallbox, which supplies alternating current from the power grid at 11 kW or 22 kW. Disclosure of the invention

[0004] The object underlying the invention is to provide a concept for the efficient implementation of an automated charging process of a battery of a motor vehicle within a parking space.

[0005] This object is achieved by means of the respective subject matter of the independent claims. Advantageous embodiments of the invention are the subject matter of the respective dependent subclaims.

[0006] According to a first aspect, a method for carrying out an automated charging process for a battery of a motor vehicle within a parking space is provided, comprising the following steps: Receiving a charging request to quickly charge the vehicle’s battery, Check whether a charging system assigned to the parking space can quickly charge the vehicle’s battery in accordance with the charging request, If no, check whether at least one other motor vehicle parked within the parking space and having another battery can provide electrical energy from its additional battery in order to use the electrical energy provided to quickly charge the battery of the motor vehicle in accordance with the charging request, if so, carrying out an automated charging process of the battery of the motor vehicle in accordance with the charging request using electrical energy provided by the at least one further motor vehicle from its further battery.

[0007] According to a second aspect, a device is provided which is configured to carry out all the steps of the method according to the first aspect.

[0008] According to a third aspect, a charging system for a parking space is provided, wherein the charging system is configured to quickly charge a battery of a motor vehicle, wherein the charging system comprises the device according to the second aspect.

[0009] According to a fourth aspect, a parking space is provided comprising the charging system according to the third aspect.

[0010] According to a fifth aspect, a computer program is provided, comprising instructions which, when the computer program is executed by a computer, in particular by the device according to the second aspect and / or by the charging system according to the third aspect, cause the computer to carry out a method according to the first aspect.

[0011] According to a sixth aspect, a machine-readable storage medium is provided on which the computer program according to the fifth aspect is stored.

[0012] The invention is based on and incorporates the finding that the above object is achieved by checking, in the event that the charging system of the parking space cannot rapidly charge the battery of the motor vehicle in accordance with the charging request, whether there is at least one other motor vehicle within the parking space, by means of whose additional battery electrical energy can be used to rapidly charge the battery of the motor vehicle. In other words, if the charging system determines that it cannot provide sufficient electrical energy to rapidly charge the battery of the motor vehicle in accordance with the charging request, a check is carried out to determine whether other motor vehicles parked within the parking space can provide electrical energy from their respective additional batteries.

[0013] If this is the case, an automated charging process of the battery of the motor vehicle is carried out in accordance with the charging request, whereby electrical energy is used in the context of this automated charging process, which is taken from another battery of at least one other motor vehicle parked within the parking space.

[0014] Thus, these additional motor vehicles act as additional electrical energy storage units from which electrical energy can be or is drawn for rapid charging of the motor vehicle’s battery.

[0015] This means that a motor vehicle battery can be charged quickly even if the charging system itself cannot provide sufficient electrical energy.

[0016] This means that the vehicle's battery can be charged efficiently and quickly, so that a driver of the vehicle can quickly have his vehicle available again with a correspondingly charged battery.

[0017] This means that an automated charging process for a motor vehicle battery can be carried out efficiently within a parking space.

[0018] If the singular is used for the other motor vehicle in the description, the plural should always be read along with it and vice versa.

[0019] The phrase “at least one” means “one or more”.

[0020] When the singular is used for "battery" and "additional battery," the plural should always be read as well, and vice versa. This means, for example, that the motor vehicle can have multiple batteries. This means, for example, that the additional motor vehicle can have several additional batteries.

[0021] Statements described in connection with one battery apply analogously to several batteries or several additional batteries and vice versa.

[0022] A battery and / or another battery within the meaning of the description is, in particular, a traction battery. A traction battery, which can also be referred to as a high-voltage storage device, traction battery, or deep cycle battery, is, in particular, an accumulator that is primarily intended to supply electrical energy to the electric motor of an electric vehicle that provides propulsion.

[0023] Thus, for example, the motor vehicle and / or the further motor vehicle is an electric motor vehicle comprising an electric motor or a hybrid motor vehicle comprising an electric motor.

[0024] The parking space within the meaning of the description is, for example, a public parking space or a private parking space. The parking space includes, for example, a garage and / or a parking deck.

[0025] The charging system comprises, for example, one or more charging stations at which a battery of a motor vehicle can be quickly charged and / or at which electrical energy can be drawn from a battery of a motor vehicle.

[0026] In other words, a charging station within the meaning of the description is designed to quickly charge and / or discharge a battery of a motor vehicle, in particular to discharge it quickly.

[0027] This means, for example, that one or more charging stations are spatially distributed within the parking space.

[0028] In one embodiment of the method, it is provided that in the step of checking whether a charging system can quickly charge the battery of the motor vehicle in accordance with the charging request, it is checked whether the charging system can provide sufficient electrical energy in accordance with the charging request in order to quickly charge the battery in accordance with the charging request.

[0029] This provides the technical advantage, for example, that the testing step can be carried out efficiently. In other words, the charging system checks whether it can (presumably) provide sufficient electrical energy at a desired time according to the charging request to quickly charge the vehicle's battery in accordance with the charging request.

[0030] In one embodiment of the method, it is provided that in the step of checking whether the charging system can provide sufficient electrical energy in accordance with the charging request, it is checked whether sufficient electrical energy can be obtained from an electrical energy storage device of the charging system and / or from a power grid connected to the charging system in accordance with the charging request.

[0031] This provides, for example, the technical advantage that the testing can be carried out efficiently. In other words, the charging system according to this embodiment checks whether it can draw the electrical energy required for rapid charging of the battery in accordance with the charging request from an electrical energy storage device of the charging system and / or from a power grid, wherein the power grid is connected to the charging system. The power grid is, for example, a public power grid.

[0032] For example, the charging system comprises multiple electrical energy storage devices. Statements made in connection with one electrical energy storage device of the charging system apply analogously to multiple electrical energy storage devices, and vice versa.

[0033] In one embodiment of the method, it is provided that in the step of checking whether at least one further motor vehicle parked within the parking space and having a further battery can provide electrical energy from its further battery, it is checked whether there is authorization to withdraw electrical energy from the further battery of the at least one further motor vehicle.

[0034] This provides, for example, the technical advantage that testing can be carried out efficiently. According to this embodiment, it is thus provided that a prerequisite for drawing electrical energy from another battery of another motor vehicle is that authorization to draw electrical energy must be present. If this is not the case, it is determined, for example, that no electrical energy may be drawn from this additional battery, resulting in a negative result for the corresponding test step.

[0035] For example, an authorization can be granted by the driver of the motor vehicle when parking another motor vehicle within the parking space. For example, such authorization can be requested from the driver, owner, or user of the other motor vehicle if necessary.

[0036] In one embodiment of the method, it is provided that in the step of checking whether at least one further motor vehicle parked within the parking space and having a further battery can provide electrical energy from its further battery, it is checked whether the further battery of the at least one further motor vehicle still has sufficient electrical energy to continue driving after leaving the parking space without having to recharge the further battery, and / or whether, after drawing electrical energy from the further battery of the at least one further motor vehicle, there is still sufficient time to charge the further battery before the at least one further motor vehicle is to leave the parking space.

[0037] This provides, for example, the technical advantage that testing can be carried out efficiently. According to this embodiment, it is thus ensured that the additional battery of the additional motor vehicle still has sufficient electrical energy for its planned onward journey, or that after electrical energy has been drawn from the additional battery, there is still sufficient time to charge it before the additional motor vehicle is picked up by its driver. In particular, it is thus ensured that, despite the drawing of electrical energy from the additional battery of the additional motor vehicle, the latter still has sufficient electrical energy available for its own onward journey.

[0038] In one embodiment of the method, it is provided that in the step of checking whether at least one further motor vehicle parked within the parking space and having a further battery can provide electrical energy from its further battery, it is checked whether electrical energy can be drawn from the further battery of the at least one further motor vehicle in a timely manner in accordance with the charging request.

[0039] This results in the technical advantage, for example, that the testing step can be carried out efficiently. This ensures, for example, in a particularly efficient manner that the electrical energy from the additional battery of the additional motor vehicle is available in time to quickly charge the battery of the motor vehicle in accordance with the charging request. In other words, it may be that an additional battery of another motor vehicle can provide sufficient electrical energy, but withdrawing this electrical energy takes time. For example, it may take so much time to withdraw the electrical energy from the additional battery of the additional motor vehicle that there is then no longer sufficient time to quickly charge the battery of the motor vehicle with the withdrawn electrical energy before the motor vehicle is picked up by its driver.In such a case, it does not make sense to discharge the additional battery of the other motor vehicle, as the electrical energy then available would no longer be available, at least in full, for rapid charging of the motor vehicle's battery.

[0040] In one embodiment of the method, it is provided that the charging system comprises one or more charging stations at which the battery of the motor vehicle can be quickly charged and / or at which electrical energy can be drawn from the further battery of the at least one further motor vehicle, wherein the checking step(s) are carried out based on a current and / or future occupancy of the charging station(s).

[0041] This provides, for example, the technical advantage that the testing steps can be carried out efficiently. According to this embodiment, it is therefore provided that it can be efficiently ensured that the charging stations can be used for rapid charging of the battery or for discharging the additional battery. In other words, it is of no use if there is another battery of another motor vehicle from which electrical energy can be drawn to quickly charge the battery of the motor vehicle, but if there is no free charging station at the required time to discharge the additional battery or to quickly charge the battery of the motor vehicle.

[0042] In one embodiment of the method, it is provided that the charging system comprises one or more charging stations at which the battery of the motor vehicle can be quickly charged and / or at which electrical energy can be drawn from the further battery of the at least one further motor vehicle, wherein the carrying out of an automated charging process of the battery of the motor vehicle in accordance with the charging request using electrical energy provided by the at least one further motor vehicle from its further battery comprises that the at least one further motor vehicle is assisted by infrastructure during its at least highly automated journey to the charging station and that, after the arrival of the at least one further motor vehicle at one of the charging stations, an automated discharging of electrical energy from the further battery is carried out.

[0043] This provides, for example, the technical advantage that the charging process can be carried out efficiently. According to this embodiment, it is thus provided that the motor vehicle or the additional motor vehicle travels to a charging station at least in a highly automated manner. Within the framework of highly automated driving, this embodiment provides for an infrastructure to assist or support the corresponding motor vehicle.

[0044] This infrastructure-supported assistance can be viewed as analogous to an AVP process. In other words, it is intended that the motor vehicle or the other motor vehicle drives to or from a charging station in a highly automated manner, similar to an AVP process.

[0045] The abbreviation "AVP" stands for "Automated Valet Parking" and can be translated into German as "automatic parking service". An AVP process includes, for example, at least highly automated driving of the motor vehicle from a drop zone, also called a drop-off location, to a parking position and, for example, at least highly automated driving of the motor vehicle from a parking position to a pick-up location, also called a pickup zone. At the drop-off location, i.e. the drop zone, a driver of the motor vehicle drops off the motor vehicle for an AVP process. At a pick-up location, i.e. the pickup zone, the motor vehicle is picked up after the AVP process has ended. An AVP process therefore starts in particular at the drop zone. An AVP process therefore ends in particular at the pickup zone. The pickup zone can be the same as or different from the drop zone.

[0046] An AVP motor vehicle is therefore a motor vehicle that can participate in an AVP process. Whenever reference is made to a motor vehicle above and below, it should always be understood that this is an AVP motor vehicle, even if the term "AVP" is not explicitly used.

[0047] The AVP process is performed on the infrastructure side using or through the AVP system for an infrastructure and is performed on the motor vehicle side using or through the AVP system for a motor vehicle.

[0048] An AVP process can be an AVP process according to one of the following AVP types: AVP type 1, AVP type 2, and AVP type 3. However, the AVP types can also change within an AVP process. This means, for example, that part of an AVP process is carried out according to AVP type 1 and another part of the AVP process is carried out according to AVP type 2 or AVP type 3. This means, for example, that an AVP process can be divided into sub-AVP processes, each of which is carried out according to one of the AVP types 1, 2, and 3.

[0049] AVP Type 1 indicates a vehicle-centric AVP process. The primary responsibility for the AVP process lies with the motor vehicle, i.e., the vehicle-based AVP system.

[0050] AVP Type 2 characterizes an infrastructure-centric AVP process. The primary responsibility for the AVP process lies with the infrastructure, i.e., the infrastructure-side AVP system.

[0051] AVP Type 3 denotes a vehicle-infrastructure-shared AVP process. Here, primary responsibility for the AVP process is shared between the motor vehicle, i.e., the vehicle-based AVP system, and the AVP system.

[0052] An AVP process includes the following operations or functions: 1. Determine a target position for the motor vehicle, which is within the parking space. 2. Planning a route from a starting position, which is included in the parking lot, to the destination position. 3. Detecting an object and / or an event and reacting accordingly to a detected object and / or a detected event. 4. Locate the vehicle within the parking space. 5. Calculate a target trajectory for the vehicle based on the planned route. 6. Control of the lateral and longitudinal guidance of the motor vehicle based on the calculated target trajectory.

[0053] The following table shows which of these processes or functions are performed by the motor vehicle, i.e. the motor vehicle-side AVP system, or by the infrastructure-side AVP system, depending on the AVP type, where "I" stands for "infrastructure", i.e. the infrastructure-side AVP system, and "K" for "motor vehicle", so that "I" indicates that the process is performed by the AVP system, and "K" indicates that the process is performed by the motor vehicle: Functions AVP type 1 AVP type 2 AVP type 3 Determining a target position for the motor vehicle, which lies within the parking space. I & K I I Planning a route from a starting position, which is included in the parking lot, to the destination position. K I I Detecting an object and / or an event and reacting accordingly to a K (& optionally I) I I & K detected object and / or a detected event. Locating the motor vehicle within the parking space. K I K Calculating a target trajectory for the motor vehicle based on the planned route. K I K Controlling the lateral and longitudinal guidance of the motor vehicle based on the calculated target trajectory. K K K

[0054] The table above indicates, for each function, whether the function is performed by the infrastructure (i.e., the infrastructure-side AVP system) or by the motor vehicle (i.e., the motor vehicle-side AVP system). In some cases, the function may be performed by both the infrastructure-side AVP system and the motor vehicle.

[0055] With regard to object and event detection for AVP type 1, it can optionally be provided that, in addition to the motor vehicle, the infrastructure-side AVP system of the infrastructure also performs this function.

[0056] The AVP types 1, 2 and 3 described here are further described in detail in ISO standard 23374-1:2021(E).

[0057] Analogous to an AVP process therefore means in particular that the at least highly automated driving is carried out in the same way as in an AVP process, with the proviso that the difference is that a starting position is, for example, a parking space or a current position of the motor vehicle and a target position is, for example, a charging station or vice versa.

[0058] The motor vehicle is at least a highly automated motor vehicle. Such a motor vehicle is equipped for at least highly automated driving. Highly automated driving corresponds to automation level 3 according to the definition of the Federal Highway Research Institute (BASt).

[0059] The fact that the motor vehicle is equipped for at least highly automated driving includes both the case where the motor vehicle is equipped for highly automated driving and fully automated driving, as well as autonomous driving. Fully automated driving corresponds to automation level 4 according to the BASt definition.

[0060] Highly automated guidance means that for a certain period of time in a specific situation (for example: driving on a motorway, driving within a parking lot, overtaking an object, driving within a lane defined by lane markings), the longitudinal and lateral guidance of the motor vehicle are automatically controlled. The driver of the motor vehicle does not have to manually control the longitudinal and lateral guidance of the vehicle. The driver does not have to constantly monitor the automatic control of the longitudinal and lateral guidance in order to be able to intervene manually if necessary. If necessary, a takeover request is automatically issued to the driver to take over control of the longitudinal and lateral guidance, in particular with a sufficient time reserve. The driver must therefore potentially be able to take over control of the longitudinal and lateral guidance.Limits of the automatic control of lateral and longitudinal guidance are automatically detected. With highly automated guidance, it is not possible to automatically achieve a risk-minimal state in every initial situation.

[0061] The phrase “to take over the control of the longitudinal and lateral guidance” can also be replaced by the phrase “to take over the longitudinal and lateral guidance”.

[0062] Fully automated guidance means that in a specific situation (for example: driving on a motorway, driving within a parking lot, overtaking an object, driving within a lane defined by lane markings), the longitudinal and lateral guidance of the motor vehicle are automatically controlled. The driver of the motor vehicle does not have to manually control the longitudinal and lateral guidance of the vehicle. The driver does not have to monitor the automatic control of the longitudinal and lateral guidance in order to intervene manually if necessary. Before the automatic control of the lateral and longitudinal guidance is terminated, the driver is automatically prompted to take over the driving task (controlling the lateral and longitudinal guidance of the motor vehicle), in particular with a sufficient time reserve. If the driver does not take over the driving task, the system automatically returns to a risk-minimal state.Limits of the automatic control of lateral and longitudinal guidance are automatically detected. In all situations, it is possible to automatically return to a system state with minimal risk.

[0063] Autonomous driving means that the longitudinal and lateral guidance of the vehicle is automatically controlled in all situations, not just in one or more specific situations. The driver is no longer required as a fallback. The vehicle can thus drive driverlessly. Autonomous driving corresponds to automation level 5 according to SAE (J3016), where SAE stands for "Society of Automotive Engineers."

[0064] In one embodiment of the method, if no further motor vehicle parked within the parking space and having a further battery can provide electrical energy from its further battery, the charging request is rejected or it is checked whether the battery of the motor vehicle can be charged with an electrical power that is correspondingly reduced compared to the charging request, wherein, if so, the charging request is answered with an offer to charge the battery of the motor vehicle with an electrical power that is correspondingly reduced compared to the charging request, wherein, if the offer is accepted, an automated charging process of the battery of the motor vehicle is carried out in accordance with the offer.

[0065] This provides the technical advantage, for example, that the vehicle's battery can still be charged even if the original charging request cannot be fulfilled.

[0066] For example, the automated charging process according to the offer is carried out analogously to the automated charging process according to the charging request. In other words, statements made in connection with an automated charging process according to the charging request apply analogously to an automated charging process according to the offer, and vice versa.

[0067] Checking whether the battery of the motor vehicle can be charged with a correspondingly reduced electrical power compared to the charging request includes, for example, checking whether the charging system assigned to the parking space can charge the battery of the motor vehicle with a reduced electrical power accordingly, in particular fast charging, and if not, in particular checking whether at least one further motor vehicle parked within the parking space and having a further battery can provide electrical energy from its further battery in order to use the electrical energy provided to charge the battery of the motor vehicle with a correspondingly reduced electrical power, in particular fast charging.

[0068] In other words, for example, the same steps regarding testing can also be provided analogously for checking whether the battery can be charged with a correspondingly reduced electrical power.

[0069] For example, the device is programmed to execute the computer program.

[0070] For example, the charging system is programmed to execute the computer program.

[0071] The method is carried out, for example, by means of the device.

[0072] The process is carried out, for example, using the charging system.

[0073] The method is, for example, a computer-implemented method

[0074] Process characteristics result analogously from corresponding device characteristics and / or charging system characteristics and / or parking space characteristics and vice versa.

[0075] The automated charging process is carried out, for example, using the charging system.

[0076] The embodiments and exemplary embodiments described here can be combined with one another in any way, even if this is not explicitly described.

[0077] A charging request within the meaning of the description includes, for example, one or more of the following information: pick-up time at which the motor vehicle is to be picked up by the driver, state of charge, arrival time, pick-up time, quality and / or condition, in particular temperature, of the battery in general and / or currently, state of charge at arrival time, desired state of charge at pick-up time, maximum charging power, which can be, for example, 50 kW, 150 kW or 200 kW, specific information from the OEM (“Original Equipment Manufacturer”) for (fast) charging and maximum price that would be paid for (fast) charging.

[0078] The invention is explained in more detail below using preferred embodiments. In the following: Fig. 1 a flowchart of a method according to the first aspect, Fig. 2 a device according to the second aspect, Fig. 3 a charging system according to the third aspect, Fig. 4 a machine-readable storage medium according to the sixth aspect and Fig. 5 a parking space according to the fourth aspect.

[0079] Fig. 1 shows a flowchart of a method for carrying out an automated charging process for a battery of a motor vehicle within a parking space, comprising the following steps: Receiving 101 a charging request for fast charging the battery of the motor vehicle, Check 103 whether a charging system assigned to the parking space can quickly charge the vehicle’s battery in accordance with the charging request, if no, checking 105 whether at least one further motor vehicle parked within the parking space and having a further battery can provide electrical energy from its further battery in order to use the electrical energy provided to quickly charge the battery of the motor vehicle in accordance with the charging request, if so, carrying out 107 an automated charging process of the battery of the motor vehicle in accordance with the charging request using electrical energy provided by the at least one further motor vehicle from its further battery.

[0080] If the result in the checking step 103 is yes, i.e., if the charging system can quickly charge the battery of the motor vehicle in accordance with the charging request, the battery of the motor vehicle is quickly charged by the charging system in accordance with the charging request in step 109. Thus, it is not intended that no electrical energy from another battery of another motor vehicle parked within the parking space is required. Accordingly, such electrical energy is also not used in accordance with step 109. Step 109 therefore comprises carrying out an automated charging process of the battery of the motor vehicle in accordance with the charging request, without using electrical energy from another battery of another motor vehicle for this purpose.

[0081] If the result of test step 105 is no, i.e. if no further motor vehicle parked within the parking space and having a further battery can provide electrical energy from its further battery, a check is carried out according to a step 111 as to whether the battery of the motor vehicle can be charged with an electrical power that is correspondingly reduced compared to the charging request, and if so, the charging request is answered with an offer according to a step 113 to charge the battery of the motor vehicle with an electrical power that is correspondingly reduced compared to the charging request, and if the offer is accepted, an automated charging process of the battery of the motor vehicle is carried out according to the offer according to a step 115.

[0082] If the result of the test step 111 is no, i.e. if the battery of the motor vehicle cannot be charged with an electrical power correspondingly reduced compared to the charging request, the charging request is rejected according to a step 117.

[0083] Fig. 2 shows a device 201 which is configured to carry out all steps of the method according to the first aspect.

[0084] Fig. 3 shows a charging system 301 for a parking space, wherein the charging system 301 is configured to quickly charge a battery of a motor vehicle, wherein the charging system 301 comprises the device 201 of the Fig. 2 includes.

[0085] The charging system 301 comprises a plurality of charging stations 303 at which a battery of a motor vehicle can be rapidly charged and / or discharged. Discharge can, for example, be rapid discharging.

[0086] Fig.4 shows a machine-readable storage medium 401 on which a computer program 403 is stored. The computer program 403 includes instructions that, when executed by a computer, cause the computer program 403 to execute a method according to the first aspect.

[0087] Fig. 5 shows a parking space 501 comprising the charging system 301 of the Fig. 3.

[0088] The charging stations 303 of the charging system 301 are spatially distributed within the parking space 501.

[0089] Parking space 501 includes several parking spaces 503 for motor vehicles. According to the Fig. 3, the charging system 301 comprises three charging stations 303. In embodiments not shown, more or fewer than three charging stations 303 are provided.

[0090] According to the Fig. 5, the three charging stations 303 are each assigned to a parking space 503 of the parking space 501.

[0091] A motor vehicle 505 is parked at a parking space 503 having a charging station 303. Another motor vehicle 507 is parked at a parking space 503 without an associated charging station 303.

[0092] The motor vehicle 505 comprises a battery 509. The further motor vehicle 507 comprises a further battery 511.

[0093] According to the concept described here, for example, it is provided that a charging request for rapid charging of the battery 509 of the motor vehicle 505 is received by the device 201. If it is determined that the battery 509 of the motor vehicle 505 cannot be rapid charged in accordance with the charging request, for example because an optional electrical energy storage device (not shown here) of the charging system 301 cannot provide sufficient electrical energy and / or because a public power grid (not shown here) to which the charging system 301 is connected cannot provide sufficient electrical energy in accordance with the charging request to rapidly charge the battery 509 of the motor vehicle 505, a check is carried out to determine whether electrical energy can be extracted from the additional battery 511 of the additional motor vehicle 507 in order to rapidly charge the battery 509 of the motor vehicle 505 using this extracted electrical energy.If this should be the case, i.e., if, for example, appropriate authorization exists, it is provided, for example, that the additional motor vehicle 507 is driven, analogous to an AVP process, from its current position to a parking space 503 in an at least highly automated manner and with infrastructure assistance, with a charging station 303 assigned to this parking space 503. At this charging station 303, it is provided, for example, that an automated discharging process is carried out in order to at least partially discharge the additional battery 511 of the additional motor vehicle 507 in order to use this electrical energy for rapid charging of the battery 509 of the motor vehicle 505.

[0094] After the electrical energy has been removed, it can be provided, for example, that the further motor vehicle 507 drives away from the charging station 303 in an at least highly automated manner, analogous to an AVP process, and drives to a parking space 503 without an assigned charging station 303. It can be provided, for example, that after the further battery 511 has been discharged, it is recharged - but in this case, for example, with a charging power that is below a rapid charging power.

[0095] The method comprises, for example, one or more of the following steps, whereby, when the plural is used for “AVP motor vehicles” in the following, the singular should always be read and vice versa. 1. A motor vehicle (a normal, i.e. non-AVP motor vehicle, electric vehicle or an AVP (electric) vehicle) requests a fast charge (for a desired time). 2. The charging system checks whether it (presumably) has / will have sufficient energy / charge (at the desired time). 3. If it is determined that there is / will be insufficient energy available, then it will be checked whether AVP vehicles parked within the parking area can provide energy. This means that one or more of the following test steps can be carried out. a. Are AVP vehicles parked (at that time) within the parking area? b. Do the owners of the AVP vehicles have authorization for unloading? c. Do the AVP vehicles have energy to deliver, i. without the vehicles having to be recharged afterwards? ii. Or is there sufficient time after unloading to reload the AVP vehicles before they are picked up again? d. Can the energy from the AVP vehicles be transferred to the charging system in a timely manner (storage and / or in real time)? Is there enough time or are there enough charging stations available for this, especially if charging stations are occupied by other charging processes? 4. If it is determined that there is not enough energy available for the requested charging process, then the requested service a. not promised or b. offered with a reduced and possible service (for example only DC50 instead of requested DC150 or DC350). DC50 means that charging is carried out with a direct voltage of up to 50 kW. DC150 means that charging is carried out with a direct voltage of up to 150 kW. DC350 means that charging is carried out with a direct voltage of up to 350 kW. 5. If it is determined that sufficient energy is / will be available, then a. the requested service is promised, b. the energy is provided by the AVP vehicles in accordance with the concept described here. This means that the AVP vehicles are driven to the charging stations, for example before the requested service in order to charge storage and / or at the same time as the requested service in order to directly charge (via the charging system) into the battery, in particular the traction battery, of the (electric) vehicle. c. Subsequently - if requested by the owners of the AVP vehicles - the AVP vehicles will be recharged depending on the available energy of the charging system and / or the pick-up times of the AVP vehicles.

[0096] For example, those AVP vehicles or their owners / drivers who have provided energy will be rewarded for doing so. For example, through free and / or discounted AVP processes or charging sessions.

[0097] If the connection power for an HPC charger is not available or the creation of a connection is only possible at high costs, it can be planned, for example, that in order to be able to offer an HPC service, energy is taken from several parked vehicles at low power levels and only a small SOC lift in order to supply a fast charging process.

[0098] HPC stands for HighPowerCharger. An HPC charger is therefore specifically a charging device with a charging capacity of 150 kW–350 kW or more.

[0099] SOC stands for "state of charge." SOC is usually expressed as a percentage. 0% SOC means the battery is completely discharged. 100% SOC means the battery is fully charged.

[0100] SOC hub stands for change in the state of charge of the battery. The following example should further explain this:

[0101] In order to be able to fast-charge a motor vehicle X with a power of 100 kW at a connection point that is only connected to the grid with 10 kW, nine additional motor vehicles (assumed here to be similar to motor vehicle X for simplicity) can be used in addition to the grid power, which are discharged via bidirectional charging for the charging process of motor vehicle X.

[0102] Each of these nine vehicles is discharged at 10 kW. The total electrical power is used, together with the grid power, to charge vehicle X: thus, 100 kW is available.

[0103] If vehicle X is to be charged by 50% SOC during rapid charging (e.g., from 30% to 80% battery charge level), this takes a time z. During this time z, the nine donor vehicle batteries are each discharged at 1 / 10 of the capacity. Assuming identical battery sizes for all donor batteries and the receiving battery, this corresponds to a change in state of charge (an SOC increase) of 5%.

[0104] This can be expressed in abbreviated numbers as follows: 9*5%SOC@10KW+10 kW from the grid=1*50%SOC@100 kW.

[0105] The used 9 * 5% SOC can then, for example, be recharged to their original charge level after completion of the rapid charging process within nine times the time of the rapid charging process with 10 / 9 kW = 1.1 kW per parked vehicle in parallel or sequentially one vehicle after the other with the 10 kW available from the grid.

[0106] The available grid power, the power used / made available for rapid charging, the power used for discharging, the power used for recharging, the number of motor vehicles used for discharging, the change in state of charge achieved in the receiving battery (battery of the motor vehicle) as well as the change in state of charge used in the donor battery (battery of the other motor vehicle) can vary in each case in the application and / or depending on the participating motor vehicles. QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] DE 10 2011 084 124 A1

[0002]

Claims

[1] Method for carrying out an automated charging process for a battery (509) of a motor vehicle (505) within a parking space (501), comprising the following steps: Receiving (101) a charging request for fast charging the battery (509) of the motor vehicle (505), Checking (103) whether a charging system (301) assigned to the parking space (501) can quickly charge the battery (509) of the motor vehicle (505) in accordance with the charging request, if no, checking (105) whether at least one further motor vehicle (507) parked within the parking space (501) and having a further battery (511) can provide electrical energy from its further battery (511) in order to use the electrical energy provided to quickly charge the battery (509) of the motor vehicle (505) in accordance with the charging request, if yes, carrying out (107) an automated charging process of the battery (509) of the motor vehicle (505) in accordance with the charging request using electrical energy provided by the at least one further motor vehicle (507) from its further battery (511). [2] Method according to claim 1, wherein in the step of checking whether a charging system (301) can quickly charge the battery (509) of the motor vehicle (505) in accordance with the charging request, it is checked whether the charging system (301) can provide sufficient electrical energy in accordance with the charging request in order to quickly charge the battery (509) in accordance with the charging request. [3] Method according to claim 2, wherein in the step of checking whether the charging system (301) can provide sufficient electrical energy in accordance with the charging request, it is checked whether sufficient electrical energy can be obtained from an electrical energy store of the charging system (301) and / or from a power grid connected to the charging system (301) in accordance with the charging request. [4] Method according to one of the preceding claims, wherein in the step of checking whether at least one further motor vehicle (507) parked within the parking space (501) and having a further battery (511) can provide electrical energy from its further battery (511), it is checked whether there is authorization to withdraw electrical energy from the further battery (511) of the at least one further motor vehicle (507). [5] Method according to one of the preceding claims, wherein in the step of checking whether at least one further motor vehicle (507) parked within the parking space (501) and having a further battery (511) can provide electrical energy from its further battery (511), it is checked whether the further battery (511) of the at least one further motor vehicle (507) still has sufficient electrical energy for a continued journey upon leaving the parking space (501) without having to recharge the further battery (511), and / or whether, after drawing electrical energy from the further battery (511) of the at least one further motor vehicle (507), there is still sufficient time to charge the further battery (511) before the at least one further motor vehicle (507) is to leave the parking space (501). [6] Method according to one of the preceding claims, wherein in the step of checking whether at least one further motor vehicle (507) parked within the parking space (501) and having a further battery (511) can provide electrical energy from its further battery (511), it is checked whether electrical energy can be drawn from the further battery (511) of the at least one further motor vehicle (507) in a timely manner in accordance with the charging request. [7] Method according to one of the preceding claims, wherein the charging system (301) comprises one or more charging stations (303) at which the battery (509) of the motor vehicle (505) can be quickly charged and / or at which electrical energy can be drawn from the further battery (511) of the at least one further motor vehicle (507), wherein the step(s) of checking are carried out based on a current and / or future occupancy of the charging station (303) or the charging stations (303). [8] Method according to one of the preceding claims, wherein the charging system (301) comprises one or more charging stations (303) at which the battery (509) of the motor vehicle (505) can be quickly charged and / or at which electrical energy can be drawn from the further battery (511) of the at least one further motor vehicle (507), wherein carrying out an automated charging process of the battery (509) of the motor vehicle (505) in accordance with the charging request using electrical energy provided by the at least one further motor vehicle (507) from its further battery (511),that the at least one further motor vehicle (507) is assisted by infrastructure during its at least highly automated journey to the charging station (303), and that after the arrival of the at least one further motor vehicle (507) at one of the charging stations (303), an automated discharging of electrical energy from the further battery (511) is carried out. [9] Method according to one of the preceding claims, wherein, if no further motor vehicle (507) parked within the parking space (501) and having a further battery (511) can provide electrical energy from its further battery (511), the charging request is rejected (117) or it is checked (111) whether the battery (509) of the motor vehicle (505) can be charged with an electrical power correspondingly reduced in comparison to the charging request, wherein, if so, the charging request is answered with an offer (113) to charge the battery (509) of the motor vehicle (505) with an electrical power correspondingly reduced in comparison to the charging request, wherein, upon acceptance of the offer, an automated charging process of the battery (509) of the motor vehicle (505) is carried out (115) in accordance with the offer. [10] Device (201) which is arranged to carry out all the steps of the method according to one of the preceding claims. [11] Charging system (301) for a parking space (501), wherein the charging system (301) is configured to rapidly charge a battery (509) of a motor vehicle (505), wherein the charging system (301) comprises the device (201) according to claim 10. [12] Parking space (501) comprising the charging system (301) according to claim 11. [13] Computer program (403) comprising instructions which, when the computer program (403) is executed by a computer, cause the computer to carry out a method according to one of claims 1 to 9. [14] Machine-readable storage medium (401) on which the computer program (403) according to claim 13 is stored.

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