Battery management system and battery replacement control method of battery replacement station

Abstract

A battery management system and battery swapping control method for a battery swapping station are disclosed. The battery management system includes a control unit, a detection unit, a calculation unit, a charging unit, a temperature control unit, and a battery swapping unit. The control unit receives a battery swapping request from a requesting end and records the request reception time t1. The battery swapping request includes at least a scheduled battery swapping time t2 and a battery swapping temperature T. The detection unit detects the battery's charge and temperature information within the battery swapping station. The calculation unit collects the charge and temperature information detected by the detection unit and performs calculations to select a target battery whose charge and temperature meet the battery swapping request at the scheduled battery swapping time t2. The charging unit charges the target battery, and the temperature control unit regulates the temperature of the target battery. The control unit, detection unit, calculation unit, charging unit, and temperature control unit are interconnected, which can reduce the energy consumption of the battery swapping station and improve the driving experience of the vehicle.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery swap stations, in particular to a battery management system of a battery swap station and a battery swap control method. BACKGROUND

[0002] The battery swap process of a new energy vehicle is usually completed in a battery swap station. The vehicle enters the battery swap station, the battery swap device removes the depleted battery on the vehicle, removes a fully charged battery from the station, and replaces it on the vehicle. The removed depleted battery is stored in the battery swap station for charging to supply energy for the next battery swap.

[0003] The battery swap station needs to control the temperature of the battery. During charging, the temperature of the battery needs to be heated to a suitable charging temperature to ensure the charging efficiency of the battery. After charging is completed, the fully charged battery is not immediately replaced on the vehicle in most cases and may be stored in the battery swap station for a long time. If the battery swap station continues to heat the battery, the energy consumption is large, which increases the investment cost of the battery swap station and affects the battery swap experience. SUMMARY

[0004] Therefore, the purpose of the present application is to provide a battery swap station battery management system and a battery swap control method, which can reasonably control the batteries in the battery swap station to improve the battery swap efficiency and reduce the energy consumption of the battery swap station, thereby improving the battery swap experience.

[0005] The present application provides a battery swap station battery management system, comprising:

[0006] a control unit receiving a battery swap request from a request end and recording a request receiving time t1, the battery swap request at least including a reserved battery swap time t2 and a battery swap temperature T,

[0007] a detection unit detecting the power information and temperature information of the batteries in the battery swap station,

[0008] a calculation unit collecting the power information and temperature information detected by the detection unit and calculating to select a target battery whose power and temperature can meet the battery swap request at the reserved battery swap time t2,

[0009] a charging unit for performing a charging operation on the target battery,

[0010] a temperature control unit for adjusting the temperature of the target battery,

[0011] and a battery swap unit for replacing the target battery on a vehicle to be swapped,

[0012] The control unit, the detection unit, the calculation unit, the charging unit and the temperature control unit are communicatively connected.

[0013] The present invention also provides a battery swapping control method for a battery swapping station, applied to the aforementioned battery swapping station battery management system, comprising the following steps:

[0014] Receiving battery swapping requests: The control unit in the battery swapping station receives battery swapping requests from the requesting end and records the request reception time t1. The battery swapping request includes at least the scheduled battery swapping time t2 and the battery swapping temperature T.

[0015] Selecting a target battery: The target battery is a battery with a suitable charge C at the scheduled battery swapping time t2;

[0016] Charging and / or temperature control: The charging unit in the battery swapping station charges the target battery, and / or the temperature control unit in the battery swapping station adjusts the temperature of the target battery so that the target battery has a suitable charge C and swapping temperature T at the scheduled swapping time t2;

[0017] Battery swapping: The battery swapping unit in the battery swapping station swaps the target battery to the vehicle to be swapped.

[0018] In one embodiment, the step of receiving a battery swapping request further includes: when the battery swapping request includes a vehicle model or a battery model, the control unit sends a first control command to the detection unit, the first control command including battery model information;

[0019] The step of selecting a target battery further includes: the detection unit receiving the first control command and detecting the power information and temperature information of the battery that matches the battery model information; the calculation unit collecting the power information and temperature information detected by the detection unit and performing calculations to select a target battery whose power and temperature can meet the battery swapping request at the scheduled battery swapping time t2.

[0020] In one embodiment, the step of receiving a battery swap request includes: the control unit receiving at least two battery swap requests from the requesting parties, grouping the battery swap requests according to battery model information, and sorting the scheduled battery swap times t2 within the same group in chronological order;

[0021] The battery swapping step further includes: the battery swapping unit swapping the target battery onto the vehicle to be swapped according to the time sequence of the arrival of the vehicle to be swapped at the battery swapping station;

[0022] The calculation unit calculates the charging power required for the remaining target battery and works with the charging unit to charge the target battery. And / or, the calculation unit calculates the temperature regulation power required for the remaining target battery and works with the temperature control unit to regulate the temperature of the remaining target battery.

[0023] In one embodiment, the charging and / or temperature control steps further include: when the selected target battery is a first battery, the first battery has a suitable charge C and a battery swapping temperature T at the requested receiving time t1, the charging unit is not used, and the temperature control unit performs a heat preservation operation on the first battery so that the first battery has a suitable charge C and a battery swapping temperature T at the scheduled battery swapping time t2; or, when the selected target battery is a third battery, the third battery has a suitable charge C at the requested receiving time t1 and a temperature lower than the battery swapping temperature T, the charging unit is not used, and the temperature control unit performs a heating operation on the third battery so that the third battery heats up to the battery swapping temperature T at the scheduled battery swapping time t2.

[0024] In one embodiment, the charging and / or temperature control step further includes: when the selected target battery is a second battery, the second battery has a suitable charge C at the requested reception time t1 and a temperature higher than the battery swapping temperature T, the charging unit is not used, and the calculation unit calculates the natural cooling rate of the second battery:

[0025] If the calculation unit determines that the second battery is a second battery that can naturally cool down to the battery swapping temperature T at the scheduled battery swapping time t2, the temperature control unit will not be put into use.

[0026] If the calculation unit determines that the second battery is a second battery that cannot naturally cool down to the battery replacement temperature T at the scheduled battery replacement time t2, the temperature control unit is activated to cool down the second battery so that it cools down to the battery replacement temperature T at the scheduled battery replacement time t2.

[0027] If the calculation unit calculates that the second battery is a third battery that can naturally cool down to the battery swapping temperature T at the first time t3 before the scheduled battery swapping time t2, the temperature control unit is put into use at the first time t3 to perform a heat preservation operation on the second battery, so that it maintains the battery swapping temperature T at the scheduled battery swapping time t2.

[0028] In one embodiment, the charging and / or temperature control steps further include: when the selected target battery is a fourth battery, the fourth battery has insufficient power at the requested receiving time t1, but can be charged to a suitable power C at the scheduled battery swapping time t2 and has a battery swapping temperature T. The temperature control unit is not used, and the charging unit is used to charge the fourth battery, so that the fourth battery has a suitable power C and a battery swapping temperature T at the scheduled battery swapping time t2.

[0029] In one embodiment, the charging and / or temperature control steps further include: when the selected target battery is a fifth battery, the fifth battery has insufficient power at the requested receiving time t1, and can be charged to a suitable power C at a second time t4 before the scheduled battery swapping time t2, but the temperature does not meet the battery swapping temperature T, the charging unit is put into use to charge the fifth battery, and the temperature control unit is put into use at the second time t4 to adjust the temperature of the fifth battery.

[0030] In one embodiment, the step of selecting the target battery further includes: both the request receiving time t1 and the scheduled battery swapping time t2 are in the peak or off-peak period, and the target battery is a battery with a suitable charge C at the request receiving time t1, or the target battery is a battery whose charge C is not at the suitable charge C at the request receiving time t1, but has a suitable charge C at the scheduled battery swapping time t2.

[0031] Alternatively, the request receiving time t1 is during a period of low or normal electricity consumption, the scheduled battery swapping time t2 is during a period of high electricity consumption, the target battery is a battery with a suitable charge C at the request receiving time t1, or the target battery is a battery whose charge C is not at the suitable charge C at the request receiving time t1, but has a suitable charge C at the third time t5 before the scheduled battery swapping time t2;

[0032] Alternatively, both the request receiving time t1 and the scheduled battery swapping time t2 fall within peak electricity consumption periods, and the target battery is a battery with a suitable charge C at the request receiving time t1.

[0033] In one embodiment, the battery swapping step further includes: if the vehicle requesting battery swapping fails to arrive at the battery swapping station after the scheduled battery swapping time t2 has arrived, the temperature control unit performs a heat preservation operation on the target battery until the fourth time t6 after the scheduled battery swapping time t2.

[0034] The beneficial effects of the battery management system for battery swapping stations of the present invention are as follows:

[0035] Through communication connections between the control unit, detection unit, calculation unit, charging unit, and temperature control unit, the battery's power and temperature can be managed according to the user's battery swapping request, which can improve battery swapping efficiency. Furthermore, it can manage the battery according to the swapping request, enabling on-demand management, reducing unnecessary energy consumption at the battery swapping station, which is conducive to reducing the investment cost of the battery swapping station and improving management efficiency.

[0036] The beneficial effects of the battery swapping control method for battery swapping stations proposed in this invention are as follows:

[0037] When a battery swapping station requests a swap, it can regulate the temperature of the batteries stored in the station without constantly adjusting the battery temperature, thus reducing the overall energy consumption of the station and saving costs. Furthermore, by swapping the target battery with the appropriate swapping temperature T to the vehicle waiting to be swapped, the target battery is already at a suitable discharge temperature, and the vehicle does not need to reheat it, reducing the vehicle's energy loss, improving the overall driving experience, and helping to increase the vehicle's range. Attached Figure Description

[0038] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of the principle of a battery management system for a battery swapping station according to an embodiment of the present invention;

[0040] Figure 2 This is a schematic diagram of the principle of a battery management system for a battery swapping station according to another embodiment of the present invention;

[0041] Figure 3 This is a schematic diagram of a battery swapping control method for a battery swapping station according to an embodiment of the present invention.

[0042] In the picture:

[0043] 10-Control unit; 101-Requesting end; 102-Cloud; 20-Detection unit; 30-Computing unit; 40-Charging unit; 50-Temperature control unit; 60-Battery swapping unit; 70-Target battery; 701-First target battery; 702-Second target battery; 71-First battery; 72-Second battery; 72a-Second battery one; 72b-Second battery two; 73-Third battery; 74-Fourth battery; 75-Fifth battery. Detailed Implementation

[0044] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. Based on the description of the present invention, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of the present invention.

[0045] Unless otherwise explicitly specified and limited, the terms "setup," "installation," and "connection" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of these terms based on the specific circumstances.

[0046] The terms “upper,” “lower,” “left,” “right,” “front,” “back,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use. They are only for the convenience of description and simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0047] The terms “first,” “second,” “third,” etc., are used merely to distinguish elements with similar properties, not to indicate or imply relative importance or a specific order.

[0048] The terms “include,” “comprising,” or any other variation thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0049] The battery swapping process for new energy vehicles is usually completed within a battery swapping station. When a vehicle enters the station, the battery swapping equipment removes the depleted battery from the vehicle and takes a fully charged battery from the station to swap into the vehicle. The depleted battery is then stored in the station and charged to provide power for the next vehicle.

[0050] Battery swapping stations need to control the temperature of the batteries. During the charging process, the battery temperature needs to be heated to a suitable charging temperature to ensure the charging efficiency. After charging is completed, since fully charged batteries are usually not immediately swapped to vehicles, they may be stored in the battery swapping station for a long time. If the battery swapping station continues to heat the batteries, the energy consumption will be large, which will increase the investment cost of the battery swapping station. Therefore, the heating of the batteries is usually stopped after charging is completed.

[0051] When a vehicle enters a battery swapping station, if a fully charged battery at room temperature or low temperature is directly replaced into the vehicle, the battery temperature is not the optimal discharge temperature. This is especially true when the ambient temperature where the fully charged battery is stored is low, such as in autumn and winter. The vehicle needs to use the battery immediately after the swap, and the low temperature will result in lower battery discharge efficiency, affecting the driving experience. Furthermore, heating the battery to the optimal discharge temperature in the vehicle takes time and consumes electrical energy, which in turn affects the vehicle's driving range.

[0052] As attached Figure 1 As shown, this invention proposes a battery management system for a battery swapping station, comprising:

[0053] Control unit 10 is used to receive a battery swap request from requesting terminal 101 and record the time of receiving the battery swap request as the request reception time t1. The battery swap request includes at least the scheduled battery swap time t2 and the battery swap temperature T.

[0054] Detection unit 20 detects the battery charge and temperature information within the battery swapping station.

[0055] The calculation unit 30 collects the power and temperature information detected by the detection unit 20, performs calculations, and selects a target battery 70 whose power and temperature meet the battery swapping request at the scheduled swapping time t2.

[0056] The charging unit 40 is used to charge the target battery 70.

[0057] Temperature control unit 50 is used to regulate the temperature of target battery 70.

[0058] and battery swapping unit 60, which is used to replace the target battery 70 to the vehicle to be swapped.

[0059] The control unit 10, detection unit 20, calculation unit 30, charging unit 40 and temperature control unit 50 are connected in communication.

[0060] Through the communication connection between the control unit 10, detection unit 20, calculation unit 30, charging unit 40 and temperature control unit 50, the battery power and temperature can be managed according to the user's (the vehicle to be swapped) battery swapping request, which can improve the battery swapping efficiency. Furthermore, the battery management can be implemented according to the battery swapping request, which can be managed on demand, reduce unnecessary energy consumption of the battery swapping station, reduce the investment cost of the battery swapping station, and improve management efficiency.

[0061] In one example, the control unit 10 generates a control command based on the battery swapping request and sends the control command to the detection unit 20. The detection unit 20 receives the control command from the control unit 10 and detects the battery's charge and temperature information within the battery swapping station according to the control command. The charge information includes the charge level C0 at the request reception time t1, or the charge level C0 at the request reception time t1 and the current charging speed V0. The temperature information includes the temperature T0 at the request reception time t1, or the temperature T0 at the request reception time t1 and the current temperature adjustment speed v0. Exemplarily, the calculation of the charging speed and temperature adjustment speed is performed by the calculation unit 30.

[0062] In one example, the calculation unit 30 collects the battery power and temperature information detected by the detection unit 20, performs calculations, and generates feedback information based on the calculation results. The feedback information is used to characterize the target battery 70 that meets the battery swapping request. The calculation unit 30 sends the feedback information to the charging unit 40 and / or the temperature control unit 50. The charging unit 40 and / or the temperature control unit 50 receive the feedback information and control the target battery 70 so that the power and temperature of the target battery 70 at the scheduled battery swapping time t2 can meet the battery swapping request.

[0063] In one example scenario, the requesting terminal 101 can be a mobile terminal, such as a mobile phone, tablet, computer, or smartwatch. Users can send battery swapping requests to the target battery swapping station through the mobile terminal. Alternatively, the requesting terminal 101 can be a vehicle terminal, where users can send battery swapping requests to the target battery swapping station through the vehicle's central control unit.

[0064] For battery swapping stations of specific brands, they internally store batteries corresponding to that brand's vehicles. Users can directly select a swapping station of the same brand on the request terminal 101 without needing to input the required battery model. For swapping stations that store batteries suitable for different vehicle models, in one example, the swapping request also includes the vehicle model. The control unit 10 of the swapping station can store matching information between the vehicle model and the battery model. Users can input the vehicle model through the request terminal 101. When a user sends a swapping request to the control unit 10 of the swapping station, the control unit 10 generates a first control command containing battery model information based on the received vehicle model. The detection unit 20 receives the first control command and detects the charge and temperature information of the battery that matches the battery model information. In another example, the swapping request includes the battery model, and users can directly select a target swapping station that stores the desired battery model on the request terminal 101.

[0065] In one example scheme, as shown in the appendix Figure 2 As shown, the battery management system of the battery swapping station also includes a cloud platform 102. The control unit 10 and the request terminal 101 communicate through the cloud platform 102. The user sends a battery swapping request to the cloud platform 102 through the request terminal 101. The cloud platform 102 then sends the battery swapping request to the corresponding target battery swapping station, thereby enabling battery swapping through the target battery swapping station. For example, the cloud platform 102 may store the aforementioned vehicle model information, battery model information, vehicle model and battery model matching information, and battery model information stored at the battery swapping station.

[0066] As attached Figure 3 As shown, this invention also proposes a battery swapping control method for a battery swapping station, applied to the aforementioned battery swapping station management system, specifically including the following steps:

[0067] Receiving battery swapping requests: The control unit 10 in the battery swapping station receives battery swapping requests from the requesting terminal 101 and records the request reception time t1. The battery swapping request includes at least the scheduled battery swapping time t2 and the battery swapping temperature T.

[0068] Select target battery 70: Target battery 70 is a battery with a suitable charge C at the scheduled battery swap time t2;

[0069] Charging and / or temperature control: The charging unit 40 in the battery swapping station charges the target battery 70, and / or the temperature control unit 50 in the battery swapping station regulates the temperature of the target battery 70 so that the target battery 70 has a suitable charge C and swapping temperature T at the scheduled swapping time t2.

[0070] Battery swapping: The battery swapping unit 60 in the battery swapping station swaps the target battery 70 to the vehicle to be swapped.

[0071] In one example, the control unit 10 and the request terminal 101 communicate with each other through the cloud 102. The above-mentioned steps of receiving the battery swap request also include: the user sends the battery swap request to the cloud 102 through the request terminal 101, and the cloud 102 sends the battery swap request to the corresponding target battery swap station.

[0072] When the battery swap request includes the vehicle model, the cloud 102 or the control unit 10 stores matching information between the vehicle model and the battery model to select the corresponding battery model according to the battery swap request; when the battery swap request includes the battery model, the cloud 102 sends the battery swap request to the corresponding target battery swap station.

[0073] In one example, the above-mentioned step of receiving a battery swapping request further includes: when the battery swapping request includes a vehicle model or a battery model, the control unit 10 sends a first control command to the detection unit 20, the first control command including battery model information.

[0074] The above-mentioned step of selecting the target battery 70 further includes: the detection unit 20 receiving the first control command and detecting the power and temperature information of batteries in the battery swapping station that match the battery model information; the calculation unit 30 collecting the power and temperature information detected by the detection unit 20 and performing calculations to select the target battery 70 whose power and temperature meet the battery swapping request at the scheduled swapping time t2. In this step, the detection unit 20 does not need to detect the power and temperature information of all batteries in the battery swapping station, but only needs to detect the battery of the corresponding model.

[0075] In one example, if at least two users send battery swap requests to control unit 10 through request terminal 101, the above-mentioned step of receiving battery swap requests further includes: control unit 10 receiving battery swap requests from at least two request terminals 101, grouping the battery swap requests according to battery model information, and sorting the scheduled battery swap times t2 within the same group according to the order of time.

[0076] The above-mentioned battery swapping steps also include: step S1.1, the battery swapping unit 60 swaps the target battery 70 onto the vehicle to be swapped according to the order in which the vehicle to be swapped arrives at the battery swapping station;

[0077] Step S1.2: The calculation unit 30 calculates the charging power required for the remaining target battery 70 and, in conjunction with the charging unit 40, charges the target battery 70; and / or, the calculation unit 30 calculates the temperature regulation power required for the remaining target battery 70 and, in conjunction with the temperature control unit 50, regulates the temperature of the remaining target battery 70.

[0078] Steps S1.1 and S1.2 described above can be repeated.

[0079] For ease of understanding, let's take two users with the same battery model sending battery swap requests as an example. One user is designated as the first vehicle, with a first scheduled battery swap time t201, and selects the first target battery 701. The other user is designated as the second vehicle, with a second scheduled battery swap time t202, and selects the second target battery 702. The first scheduled battery swap time t201 is earlier than the second scheduled battery swap time t202. If the second vehicle arrives at the battery swap station before the first vehicle, the first target battery 701 can be swapped to the second vehicle first. Then, based on the battery swap request of the first vehicle, the calculation unit 30 calculates and adjusts the charging power of the second target battery 702 in conjunction with the charging unit 40, and / or adjusts the temperature regulation power of the second target battery 702 in conjunction with the temperature control unit 50, so that the second target battery 702 can meet the battery swap request of the first vehicle.

[0080] In one example, the target battery 70 includes a first battery 71. The first battery 71 has a suitable charge C and a battery swapping temperature T at the requested receiving time t1. That is, when the user sends a battery swapping request, the first battery 71 is just charged to the suitable charge C, and its temperature after charging is completed meets the battery swapping temperature T. The above-mentioned charging and / or temperature control steps also include: when the target battery 70 is the first battery 71, the charging unit 40 is not used, and the temperature control unit 50 is used to keep the first battery 71 warm, so that the first battery 71 maintains a suitable charge C and battery swapping temperature T at the scheduled battery swapping time t2.

[0081] In one example, the target battery 70 includes a second battery 72. The second battery 72 has a suitable charge C and a temperature higher than the battery swapping temperature T at the request receiving time t1. That is, when the user sends a battery swapping request, the second battery 72 is just charged to the suitable charge C, but its temperature after charging is completed is higher than the battery swapping temperature T required by the user. The above-mentioned charging and / or temperature control steps also include: when the target battery 70 is the second battery 72, the charging unit 40 is not used, and the calculation unit 30 calculates the natural cooling rate of the second battery 72.

[0082] If the calculation unit 30 calculates that the second battery 72 is a second battery 72a that can naturally cool down to the battery replacement temperature T at the scheduled battery replacement time t2, the temperature control unit 50 is not used; if the calculation unit 30 calculates that the second battery 72 is a second battery 72b that cannot naturally cool down to the battery replacement temperature T at the scheduled battery replacement time t2, the temperature control unit 50 is used to cool down the second battery 72b so that the second battery 72b cools down to the battery replacement temperature T at the scheduled battery replacement time t2.

[0083] If the calculation unit 30 calculates that the second battery 72 is a second battery 72c that can naturally cool down to the battery swapping temperature T at the first time t3 before the scheduled battery swapping time t2, the temperature control unit 50 is put into use at the first time t3 to perform a heat preservation operation on the second battery 72c, so that the second battery 72 maintains the battery swapping temperature T at the scheduled battery swapping time t2.

[0084] For example, the calculation unit 30 can calculate the required temperature regulation power based on data such as the request receiving time t1, the scheduled battery swapping time t2, the battery swapping temperature T, and the current temperature of the target battery 70, so that the temperature control unit 50 can regulate the temperature of the target battery 70 according to the required temperature regulation power.

[0085] In one example, the target battery 70 includes a third battery 73, which is a battery with a suitable charge C and a temperature lower than the battery swapping temperature T at the requested receiving time t1. That is, when the user sends the battery swapping request, the third battery 73 has been charged to the suitable charge C, but its temperature is lower than the battery swapping temperature T. The above-mentioned charging and / or temperature control steps also include: when the target battery 70 is the third battery 73, the charging unit 40 is not used, and the temperature control unit 50 is used to heat the third battery 73 so that the third battery 73 is heated to the battery swapping temperature T at the scheduled battery swapping time t2.

[0086] In one example embodiment, the step of selecting the target battery 70 described above further includes:

[0087] S2.1 First, determine whether the second battery 72a, which can naturally cool down to the battery swapping temperature T at the scheduled battery swapping time t2, exists. If it exists, select the second battery 72a as the target battery 70. At this time, the charging unit 40 and the temperature control unit 50 are not put into use, and the energy consumption of the whole station is low.

[0088] S2.2 If the second battery 72a is not available, the second battery 72c, which can naturally cool down to the battery swapping temperature T at the first time t3, is selected. At this time, only the temperature control unit 50 needs to be put into use and perform heat preservation operation. The heat preservation time is short and the energy consumption of the whole station is relatively low.

[0089] S2.3 If the second battery 72c does not exist, select the first battery 71 with a suitable charge C and battery exchange temperature T at the request receiving time t1; at this time, only the temperature control unit 50 needs to be put into use and perform heat preservation operation. The heat preservation time is relatively long, but the energy consumption of the whole station is relatively low.

[0090] S2.4 If the first battery 71 does not exist, select the second battery 72b or the third battery 73.

[0091] In this example, the solution with the lowest overall energy consumption can be selected to manage the batteries based on the battery swapping request, while still meeting the battery swapping needs.

[0092] In one example, the target battery 70 includes a fourth battery 74. The fourth battery 74 has insufficient power at the requested receiving time t1, but can be charged to a suitable power C at the scheduled battery swapping time t2, and has a swapping temperature T. The above-mentioned charging and / or temperature control steps further include: when the target battery 70 is the fourth battery 74, the temperature control unit 50 is not used, and the charging unit 40 is used to charge the fourth battery 74, so that the fourth battery 74 has a suitable power C and a swapping temperature T at the scheduled battery swapping time t2.

[0093] The steps for selecting the target battery 70 described above also include:

[0094] S2.11. Determine if the fourth battery 74 exists. If it exists, select the fourth battery 74 as the target battery 70. At this time, the charging unit 40 is put into use, and the temperature control unit 50 is not put into use. For example, the energy consumption of the charging unit 40 in step S2.2 can be compared with that of the temperature control unit 50 in step S2.11. If the energy consumption of the charging unit 40 in step S2.11 is larger, then step S2.2 is performed before step S2.11.

[0095] In one example, the target battery 70 includes a fifth battery 75. The fifth battery 75 has insufficient power at the requested receiving time t1, but can be charged to a suitable power C at a second time t4 before the scheduled battery swapping time t2, and the temperature at the second time t4 does not meet the battery swapping temperature T. The above-mentioned charging and / or temperature control steps further include: when the target battery 70 is the fifth battery 75, the charging unit 40 is put into use to charge the fifth battery 75, and the temperature control unit 50 is put into use at the second time t4 to adjust the temperature of the fifth battery 75.

[0096] When the temperature of the fifth battery 75 is at the battery swapping temperature T at the second time t4, the temperature control unit 50 performs a heat preservation operation on the fifth battery 75; when the temperature of the fifth battery 75 is higher than the battery swapping temperature T, the temperature control unit 50 performs a cooling operation on the fifth battery 75; when the temperature of the fifth battery 75 is lower than the battery swapping temperature T, the temperature control unit 50 performs a heating operation on the fifth battery 75.

[0097] Understandably, in addition to adjusting the temperature of the target battery 70 to the battery swapping temperature T, the temperature control unit 50 described above can also adjust the temperature of the target battery 70 before or during charging so that the temperature of the target battery 70 is at a suitable charging temperature. The above steps focus on the temperature control unit 50 adjusting the target battery 70 to the battery swapping temperature T, so the description of the temperature control unit 50 during the charging of the target battery 70 is omitted.

[0098] Because electricity consumption varies throughout the day, electricity prices vary across peak, off-peak, and low-peak periods. Electricity costs are higher during peak hours and lower during off-peak hours. Therefore, to save on the investment costs of battery swapping stations, charging unit 40 and / or temperature control unit 50 should be put into use during off-peak or low-peak periods.

[0099] Therefore, in one example scheme, the above-mentioned step of selecting the target battery 70 further includes: if both the requested receiving time t1 and the scheduled battery swapping time t2 are in the peak or off-peak period, the target battery 70 preferentially selects the battery with a suitable charge C at the requested receiving time t1, or the target battery 70 preferentially selects the battery whose charge has not reached the suitable charge C at the requested receiving time t1, but has a suitable charge C at the scheduled battery swapping time t2.

[0100] If the requested receiving time t1 is during a peak or off-peak period, and the scheduled battery swapping time t2 is during a peak period, then the target battery 70 will preferentially select a battery with a suitable charge C at the requested receiving time t1. Alternatively, the target battery 70 will preferentially select a battery that has not reached a suitable charge C at the requested receiving time t1, but has a suitable charge C at a third time t5 before the scheduled battery swapping time t2. The third time t5 is the boundary between the peak or off-peak period and the peak period. The calculation unit 30 can calculate the charging power to cooperate with the charging unit 40 to charge the target battery 70. The temperature control unit 30 can be put into use at the third time t5 to adjust the temperature of the target battery 70. The calculation unit 30 can calculate the temperature adjustment power to cooperate with the temperature control unit 50 to perform heat preservation, cooling, or heating operations according to the current temperature of the target battery 70, so that the target battery 70 has a swapping temperature T at the scheduled battery swapping time t2.

[0101] If both the requested reception time t1 and the scheduled battery swap time t2 fall within peak electricity consumption periods, the target battery 70 will preferentially select a battery with a suitable charge C at the requested reception time t1. The charging unit 50 will charge the target battery 70 to the suitable charge C during the off-peak or low-peak periods before the requested reception time t1 arrives. During peak electricity consumption periods, only the temperature control unit 50 needs to regulate the temperature of the target battery 70, thereby reducing the management cost of the battery swapping station.

[0102] In one example, the aforementioned battery swapping steps further include: if the vehicle requesting battery swapping fails to reach the battery swapping station after the scheduled battery swapping time t2 has arrived, the temperature control unit 50 performs a heat preservation operation on the target battery 70 until the fourth time t6 after the scheduled battery swapping time t2.

[0103] In one example, the user can send a fourth time t6 to the control unit 10 via the request terminal 101. The control unit 10 then sends a second control command to the temperature control unit 50. The temperature control unit 50 receives the second control command and thus keeps the target battery 70 warm to the fourth time t6. In another example, the user can send their real-time location to the control unit 10 via the request terminal 101. The control unit 10 then sends a third control command to the calculation unit 30. The calculation unit 30 receives the third control command and calculates the fourth time t6 based on the user's (the vehicle to be swapped) real-time location, current vehicle speed, and the location of the battery swapping station. The temperature control unit 50 can directly obtain the fourth time t6 from the calculation unit 30, or the calculation unit 30 can send the fourth time t6 to the control unit 10. The control unit 10 then sends a second control command to the temperature control unit 50, which receives the second control command to keep the target battery 70 warm.

[0104] The battery swapping control method proposed in this invention enables the battery swapping station to regulate the temperature of batteries stored in the station when a battery swapping request is received. This eliminates the need for constant temperature regulation of the batteries, reducing the overall energy consumption of the station and saving costs. Furthermore, when the target battery 70 with the appropriate swapping temperature T is swapped to the vehicle to be swapped, the target battery 70 is already at a suitable discharge temperature, eliminating the need for the vehicle to reheat it. This reduces the vehicle's energy loss, improves the overall driving experience, and helps increase the vehicle's driving range.

[0105] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A battery swapping control method for a battery swapping station, characterized in that, This is applied to a battery management system for a battery swapping station, the battery management system comprising: The control unit (10) receives a battery swapping request from the requesting terminal (101) and records the request reception time t1. The battery swapping request includes at least the scheduled battery swapping time t2 and the battery swapping temperature T. The detection unit (20) detects the battery charge and temperature information within the battery swapping station. The calculation unit (30) collects the power and temperature information detected by the detection unit (20), performs calculations, and selects the target battery (70) whose power and temperature can meet the battery swap request at the scheduled battery swap time t2. The charging unit (40) is used to charge the target battery (70). A temperature control unit (50) is used to regulate the temperature of the target battery (70). and a battery swapping unit (60) for replacing the target battery (70) onto the vehicle to be swapped. The control unit (10), the detection unit (20), the calculation unit (30), the charging unit (40), and the temperature control unit (50) are communicatively connected. Includes the following steps: Receiving a battery swap request: The control unit (10) in the battery swap station receives a battery swap request from the requesting end (101) and records the request receiving time t1. The battery swap request includes at least the scheduled battery swap time t2 and the battery swap temperature T. When the battery swap request includes the vehicle model or battery model, the control unit (10) sends a first control command to the detection unit (20). The first control command includes battery model information. The control unit (10) receives at least two battery swap requests from the requesting end (101) and groups the battery swap requests according to the battery model information. The scheduled battery swap time t2 in the same group is sorted in chronological order. Select target battery (70): The target battery (70) is a battery with a suitable charge C at the scheduled battery swapping time t2; Charging and / or temperature control: The charging unit (40) in the battery swapping station charges the target battery (70), and / or the temperature control unit (50) in the battery swapping station adjusts the temperature of the target battery (70) so that the target battery (70) has a suitable charge C and swapping temperature T at the scheduled swapping time t2. Battery swapping: The battery swapping unit (60) in the battery swapping station swaps the target battery (70) onto the vehicle to be swapped according to the time sequence of the vehicle's arrival at the battery swapping station; The calculation unit (30) calculates the charging power required for the remaining target battery (70) and, in conjunction with the charging unit (40), charges the target battery (70). Alternatively, the calculation unit (30) calculates the temperature regulation power required for the remaining target battery (70) and, in conjunction with the temperature control unit (50), regulates the temperature of the remaining target battery (70).

2. The battery swapping control method for a battery swapping station according to claim 1, characterized in that, The step of receiving the battery swap request further includes: the step of selecting the target battery (70) further includes: the detection unit (20) receives the first control command and detects the power information and temperature information of the battery that is consistent with the battery model information; the calculation unit (30) collects the power information and temperature information detected by the detection unit (20) and performs calculations to select the target battery (70) whose power and temperature can meet the battery swap request at the scheduled battery swap time t2.

3. The battery swapping control method for a battery swapping station according to claim 1 or 2, characterized in that, The charging and / or temperature control steps further include: when the selected target battery (70) is a first battery (71), the first battery (71) has a suitable charge C and a battery swapping temperature T at the requested receiving time t1, the charging unit (40) is not used, and the temperature control unit (50) performs a heat preservation operation on the first battery (71) so that the first battery (71) has a suitable charge C and a battery swapping temperature T at the scheduled battery swapping time t2; or, when the selected target battery (70) is a third battery (73), the third battery (73) has a suitable charge C at the requested receiving time t1 and a temperature lower than the battery swapping temperature T, the charging unit (40) is not used, and the temperature control unit (50) performs a heating operation on the third battery (73) so that the third battery (73) heats up to the battery swapping temperature T at the scheduled battery swapping time t2.

4. The battery swapping control method for a battery swapping station according to claim 1 or 2, characterized in that, The charging and / or temperature control steps further include: when the selected target battery (70) is the second battery (72), the second battery (72) has a suitable charge C at the requested receiving time t1 and the temperature is higher than the battery swapping temperature T, the charging unit (40) is not used, and the calculation unit (30) calculates the natural cooling rate of the second battery (72): If the calculation unit (30) calculates that the second battery (72) is the second battery (72a) that can naturally cool down to the battery replacement temperature T at the scheduled battery replacement time t2, the temperature control unit (50) will not be put into use; If the calculation unit (30) calculates that the second battery (72) is the second battery (72b) that cannot be naturally cooled to the battery replacement temperature T at the scheduled battery replacement time t2, the temperature control unit (50) is put into use to cool down the second battery (72b) so that it is cooled down to the battery replacement temperature T at the scheduled battery replacement time t2; If the calculation unit (30) calculates that the second battery (72) is a second battery three (72c) that can naturally cool down to the battery replacement temperature T at the first time t3 before the scheduled battery replacement time t2, the temperature control unit (50) is put into use at the first time t3 to perform a heat preservation operation on the second battery three (72c) so that it maintains the battery replacement temperature T at the scheduled battery replacement time t2.

5. The battery swapping control method for a battery swapping station according to claim 1 or 2, characterized in that, The charging and / or temperature control steps further include: when the selected target battery (70) is the fourth battery (74), the fourth battery (74) has insufficient power at the requested receiving time t1, but can be charged to a suitable power C at the scheduled battery swapping time t2, and has a battery swapping temperature T. The temperature control unit (50) is not used, and the charging unit (40) is used to charge the fourth battery (74), so that the fourth battery (74) has a suitable power C and a battery swapping temperature T at the scheduled battery swapping time t2.

6. The battery swapping control method for a battery swapping station according to claim 1 or 2, characterized in that, The charging and / or temperature control steps further include: when the selected target battery (70) is the fifth battery (75), the fifth battery (75) has insufficient power at the requested receiving time t1, and can be charged to a suitable power C at the second time t4 before the scheduled battery swapping time t2, but the temperature does not meet the battery swapping temperature T, the charging unit (40) is put into use to charge the fifth battery (75), and the temperature control unit (50) is put into use at the second time t4 to adjust the temperature of the fifth battery (75).

7. The battery swapping control method for a battery swapping station according to claim 1, characterized in that, The step of selecting the target battery (70) further includes: both the request receiving time t1 and the scheduled battery swapping time t2 are in the peak or off-peak period, the target battery (70) is a battery with a suitable charge C at the request receiving time t1, or the target battery (70) is a battery whose charge C is not reached at the request receiving time t1, but has a suitable charge C at the scheduled battery swapping time t2; Alternatively, the request receiving time t1 is during a period of low or normal electricity consumption, the scheduled battery swapping time t2 is during a period of high electricity consumption, the target battery (70) is a battery with a suitable charge C at the request receiving time t1, or the target battery (70) is a battery whose charge C is not at the suitable charge C at the request receiving time t1, but has a suitable charge C at the third time t5 before the scheduled battery swapping time t2; Alternatively, both the request receiving time t1 and the scheduled battery swapping time t2 are during peak electricity consumption periods, and the target battery (70) is a battery with a suitable charge C at the request receiving time t1.

8. The battery swapping control method for a battery swapping station according to claim 1, characterized in that, The battery swapping process further includes: if the vehicle requesting battery swapping fails to arrive at the battery swapping station after the scheduled battery swapping time t2 has arrived, the temperature control unit (50) performs a heat preservation operation on the target battery (70) until the fourth time t6 after the scheduled battery swapping time t2.

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