Battery replacement station battery management system and battery replacement control method

Abstract

The invention discloses a battery replacement station battery management system and a battery replacement control method, the battery management system comprises a control unit, a detection unit, a calculation unit, a charging unit, a temperature control unit and a battery replacement unit, the control unit receives a battery replacement request from a request end and records request receiving time t1, and the battery replacement request at least comprises reserved battery replacement time t2 and battery replacement temperature T; the detection unit detects electric quantity information and temperature information of batteries in the battery replacing station, the calculation unit collects and calculates the electric quantity information and the temperature information detected by the detection unit and selects a target battery of which the electric quantity and the temperature can meet a battery replacing request at the reserved battery replacing time t2, and the charging unit is used for charging the target battery. The temperature control unit is used for adjusting the temperature of the target battery, the control unit, the detection unit, the calculation unit, the charging unit and the temperature control unit are in communication connection, the energy consumption of the battery replacement station can be reduced, and the driving experience of the vehicle can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of charging and battery swapping stations, and in particular to a battery management system and a battery swapping control method for a battery swapping station. Background Art

[0002] The battery replacement process of new energy vehicles is usually completed in a battery replacement station. When the vehicle enters the battery replacement station, the battery replacement equipment removes the depleted battery from the vehicle, takes out the fully charged battery from the station and replaces it with the vehicle. The removed depleted battery is stored in the battery replacement station for charging so that the next vehicle can be replaced with energy.

[0003] The battery swap station needs to control the temperature of the battery. During the charging process, the battery needs to be heated to a suitable charging temperature to ensure the battery charging efficiency. After charging, since the fully charged battery is not immediately replaced on the vehicle in most cases, it is likely to 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 will increase the investment cost of the battery swap station and affect the battery swap experience. Summary of the invention

[0004] In view of this, the purpose of the present invention is to provide a battery management system and a battery replacement control method for a battery replacement station, which can reasonably manage and control the batteries in the battery replacement station to improve the battery replacement efficiency, and can reduce the energy consumption of the battery replacement station, which is conducive to improving the battery replacement experience.

[0005] The present invention provides a battery management system for a battery swap station, comprising: The control unit receives a battery replacement request from a requesting end and records a request receiving time t1, wherein the battery replacement request at least includes a scheduled battery replacement time t2 and a battery replacement temperature T. The detection unit detects the battery power and temperature information in the battery swap station. a calculation unit, which collects the power information and temperature information detected by the detection unit, performs calculations, and selects a target battery whose power and temperature can meet the battery replacement request at the scheduled battery replacement time t2, a charging unit, configured to charge the target battery, A temperature control unit, used to adjust the temperature of the target battery, and a battery replacement unit, used to replace the target battery with the vehicle to be replaced. The control unit, the detection unit, the calculation unit, the charging unit and the temperature control unit are communicatively connected with each other.

[0006] The present invention also provides a battery swap control method for a battery swap station, which is applied to the battery management system of the battery swap station, and comprises the following steps: Receiving a battery swap request: The control unit in the battery swap station receives a battery swap request from the requesting end and records the request receiving time t1, wherein the battery swap request at least includes the scheduled battery swap time t2 and the battery swap temperature T; Select a target battery: the target battery is a battery with a suitable power C at the scheduled battery replacement time t2; Charging and / or temperature control: the charging unit in the battery swap station charges the target battery, and / or the temperature control unit in the battery swap station adjusts the temperature of the target battery, so that the target battery has an appropriate power C and battery swap temperature T at the scheduled battery swap time t2; Battery replacement: The battery replacement unit in the battery replacement station replaces the target battery to the vehicle to be replaced.

[0007] In one embodiment, the step of receiving a battery replacement request further includes: when the battery replacement request includes a vehicle model or a battery model, the control unit sends a first control instruction to the detection unit, the first control instruction including battery model information; The step of selecting a target battery also includes: the detection unit receives the first control instruction, and detects the power information and temperature information of the battery consistent with the battery model information; the calculation unit collects the power information and temperature information detected by the detection unit, and performs calculations to select a target battery whose power and temperature can meet the battery replacement request at the scheduled battery replacement time t2.

[0008] In one embodiment, the step of receiving a battery replacement request includes: the control unit receives battery replacement requests from at least two requesting ends, and groups the battery replacement requests according to battery model information, and sorts the scheduled battery replacement times t2 in the same group in chronological order; The battery replacement step further includes: the battery replacement unit replaces the target battery with the vehicle to be replaced according to the time sequence of the vehicles to be replaced arriving at the battery replacement station; The calculation unit calculates the charging power required by the remaining target battery and cooperates with the charging unit to charge the target battery, and / or the calculation unit calculates the temperature regulation power required by the remaining target battery and cooperates with the temperature control unit to regulate the temperature of the remaining target battery.

[0009] In one embodiment, the step of selecting a target battery also includes: when the selected target battery is a first battery, the first battery has an appropriate power C and a battery replacement temperature T at the request receiving time t1, the charging unit is not put into use, and the temperature control unit performs an insulation operation on the first battery so that the first battery has an appropriate power C and a battery replacement temperature T at the scheduled battery replacement time t2; or, when the selected target battery is a third battery, the third battery has an appropriate power C at the request receiving time t1 and the temperature is lower than the battery replacement temperature T, the charging unit is not put into use, and the temperature control unit performs a heating operation on the third battery so that the third battery is heated to the battery replacement temperature T at the scheduled battery replacement time t2.

[0010] In one embodiment, the step of selecting a target battery further includes: when the selected target battery is a second battery, the second battery has a suitable power C at the request receiving time t1, and the temperature is higher than the battery replacement temperature T, the charging unit is not put into use, and the calculation unit calculates the natural cooling speed of the second battery: If the calculation unit calculates that the second battery is a second battery 1 that can be naturally cooled to the battery replacement temperature T at the scheduled battery replacement time t2, the temperature control unit is not put into use; If the calculation unit calculates that the second battery is the second battery 2 that cannot be naturally cooled to the battery replacement temperature T at the scheduled battery replacement time t2, the temperature control unit is put into use to cool the second battery 2 so that it is cooled to the battery replacement temperature T at the scheduled battery replacement time t2; If the calculation unit calculates that the second battery is a third battery three 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 is put into use at the first time t3 to perform insulation operation on the second battery three so that it maintains the battery replacement temperature T at the scheduled battery replacement time t2.

[0011] In one embodiment, the step of selecting a target battery also includes: when the selected target battery is a fourth battery, the fourth battery is insufficiently charged at the request receiving time t1, but can be charged to an appropriate power C and has a battery replacement temperature T at the scheduled battery replacement time t2, the temperature control unit is not put into use, and the charging unit is put into use to charge the fourth battery so that the fourth battery has an appropriate power C and a battery replacement temperature T at the scheduled battery replacement time t2.

[0012] In one embodiment, the step of selecting a target battery also includes: when the selected target battery is a fifth battery, the fifth battery is low on power at the request receiving time t1, and can be charged to an appropriate power C at a second time t4 before the scheduled battery replacement time t2, but the temperature does not meet the battery replacement 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.

[0013] In one embodiment, the step of selecting a target battery further includes: the request receiving time t1 and the scheduled battery replacement time t2 are both in a high usage period or a low usage period, the target battery is a battery with a suitable power C at the request receiving time t1, or the target battery is a battery whose power does not reach the suitable power C at the request receiving time t1, but has a suitable power C at the scheduled battery replacement time t2; Or, the request receiving time t1 is in a period of high or low power consumption, and the scheduled battery replacement time t2 is in a period of peak power consumption, and the target battery is a battery with a suitable power C at the request receiving time t1, or the target battery is a battery whose power does not reach the suitable power C at the request receiving time t1, but has a suitable power C at a third time t5 before the scheduled battery replacement time t2; Alternatively, the request receiving time t1 and the scheduled battery replacement time t2 are both during peak power consumption periods, and the target battery is a battery with an appropriate power level C at the request receiving time t1.

[0014] In one embodiment, the battery replacement step also includes: if the vehicle to be replaced that has issued the battery replacement request fails to arrive at the battery replacement station after the scheduled battery replacement time t2, the temperature control unit performs a heat preservation operation on the target battery and keeps it warm until the fourth time t6 after the scheduled battery replacement time t2.

[0015] The beneficial effects of the battery management system for a battery swap station of the present invention are: Through the communication connection between the control unit, detection unit, calculation unit, charging unit and temperature control unit, the battery power and temperature can be managed according to the user's battery replacement request, the battery replacement efficiency can be improved, and the corresponding battery management can be implemented according to the battery replacement request. It can be managed on demand and can reduce unnecessary energy consumption of the battery replacement station, which is beneficial to reduce the investment cost of the battery replacement station and improve management efficiency.

[0016] The beneficial effects of the battery swap control method of the battery swap station proposed by the present invention are: The battery swap station can regulate the temperature of the batteries stored in the station when there is a request for battery swap. There is no need to regulate the temperature of the batteries all the time, which reduces the energy consumption of the entire station and saves the cost of the entire station. The target battery with the battery swap temperature T is replaced on the vehicle to be swapped. The target battery is already at a suitable discharge temperature, and the vehicle does not need to reheat it, which reduces the vehicle's energy loss, improves the driving experience of the entire vehicle, and helps to increase the vehicle's cruising range. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a schematic diagram of the principle of a battery management system for a battery swap station according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the principle of a battery management system for a battery swap station according to another embodiment of the present invention; Figure 3 It is a schematic diagram of a battery swap control method of a battery swap station according to an embodiment of the present invention.

[0019] In the figure: 10-control unit; 101-request end; 102-cloud; 20-detection unit; 30-computing unit; 40-charging unit; 50-temperature control unit; 60-battery replacement 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 DESCRIPTION

[0020] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the description of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Unless otherwise clearly specified and limited, the terms "disposed", "installed", "connected" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0022] The directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front”, “back”, “top”, “bottom”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when used. They are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0023] The terms "first", "second", "third" and the like are merely used to distinguish elements of similar nature, and do not indicate or imply relative importance or a particular order.

[0024] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of the elements listed and may also include additional elements not expressly listed.

[0025] The battery replacement process of new energy vehicles is usually completed in a battery replacement station. When the vehicle enters the battery replacement station, the battery replacement equipment removes the depleted battery from the vehicle, takes out the fully charged battery from the station and replaces it with the vehicle. The removed depleted battery is stored in the battery replacement station and charged for the next vehicle to be replaced with energy.

[0026] The battery swap station needs to control the temperature of the battery. During the charging process, the battery needs to be heated to a suitable charging temperature to ensure the battery charging efficiency. After charging, since the fully charged battery is not immediately replaced on the vehicle in most cases, it is likely to 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, resulting in an increase in the investment cost of the battery swap station. Therefore, the battery heating is usually stopped after charging is completed.

[0027] When a vehicle enters a battery swap station for battery replacement, if a fully charged battery at room temperature or low temperature is directly replaced on the vehicle, the battery temperature is not suitable for discharge at this time, especially when the ambient temperature where the fully charged battery is stored is low, such as in autumn and winter, the temperature of the fully charged battery is low, and the vehicle needs to put the battery into use immediately after the battery replacement. Low temperature will cause the battery discharge efficiency to be low, affecting the driving experience of the vehicle. In addition, it takes a certain amount of time to heat the battery to a suitable discharge temperature on the vehicle, which will consume electrical energy and affect the vehicle's range.

[0028] As attached Figure 1 As shown, the present invention proposes a battery management system for a battery swap station, comprising: The control unit 10 is used to receive a battery replacement request from the request end 101, and record the time when the battery replacement request is received as the request receiving time t1, wherein the battery replacement request at least includes the scheduled battery replacement time t2 and the battery replacement temperature T. The detection unit 20 detects the power information and temperature information of the battery in the battery swap station. The calculation unit 30 collects the power information and temperature information detected by the detection unit 20, performs calculations, and selects a target battery 70 whose power and temperature can meet the battery replacement request at the scheduled battery replacement time t2. The charging unit 40 is used to charge the target battery 70. The temperature control unit 50 is used to adjust the temperature of the target battery 70. And a battery replacement unit 60, the battery replacement unit 60 is used to replace the target battery 70 to the vehicle to be replaced.

[0029] 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 with each other.

[0030] Through the communication connection between the control unit 10, the detection unit 20, the calculation unit 30, the charging unit 40 and the temperature control unit 50, the battery power and temperature can be managed according to the battery replacement request of the user (the vehicle to be replaced), the battery replacement efficiency can be improved, and the corresponding battery management can be implemented according to the battery replacement request. It can be managed on demand and can reduce unnecessary energy consumption of the battery replacement station, which is beneficial to reduce the investment cost of the battery replacement station and improve the management efficiency.

[0031] In an example solution, the control unit 10 generates a control instruction according to the battery replacement request, and sends the control instruction to the detection unit 20. The detection unit 20 receives the control instruction from the control unit 10, and detects the power information and temperature information of the battery in the battery replacement station according to the control instruction, wherein the power information includes the power C0 at the request receiving time t1, or the power information includes the power C0 at the request receiving time t1 and the current charging speed V0, and the temperature information includes the temperature T0 at the request receiving time t1, or the temperature information includes the temperature T0 at the request receiving time t1 and the current temperature adjustment speed v0. Exemplarily, the calculation of the charging speed and the temperature adjustment speed is completed by the calculation unit 30.

[0032] In an example scenario, the calculation unit 30 collects the battery power information and temperature information detected by the detection unit 20 for calculation, and generates feedback information based on the calculation results. The feedback information is used to characterize the target battery 70 that meets the battery replacement 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 replacement time t2 can meet the battery replacement request.

[0033] In an example scenario, the requesting end 101 can be a mobile terminal, such as a mobile phone, tablet, computer, electronic watch, etc. The user can send a battery replacement request to the target battery replacement station through the mobile terminal. The requesting end 101 can also be a vehicle end, and the user can send a battery replacement request to the target battery replacement station through the vehicle's central control.

[0034] For some battery swap stations of a specific brand, batteries corresponding to vehicles of a specific brand are stored internally. Users can directly select a battery swap station of the same brand at the request end 101, and there is no need to input the required battery model at the request end 101. For battery swap stations that store batteries suitable for different vehicle models, in one example solution, the battery swap request also includes the vehicle model. The control unit 10 of the battery swap station can store the matching information between the vehicle model and the battery model. Users can input the vehicle model through the request end 101. When the user sends a battery swap request to the control unit 10 of the battery swap station, the control unit 10 generates a first control instruction containing the battery model information according to the received vehicle model. The detection unit 20 receives the first control instruction and detects the battery power information and temperature information consistent with the battery model information. In another example solution, the battery swap request includes the battery model, and users can directly select a target battery swap station that stores the required battery model at the request end 101.

[0035] In an example scenario, as shown in the attached Figure 2 As shown, the battery management system of the battery swap station also includes a cloud 102, and the control unit 10 and the request end 101 are connected to each other through the cloud 102. The user sends the battery swap request to the cloud 102 through the request end 101, and the cloud 102 sends the battery swap request to the corresponding target battery swap station, and then the battery swap is realized through the target battery swap station. For example, the cloud 102 can store the above-mentioned vehicle model information, battery model information, matching information between vehicle model and battery model, battery model information stored in the battery swap station, etc.

[0036] As attached Figure 3 As shown, the present invention also proposes a battery swap control method for a battery swap station, which is applied to the battery management system of the battery swap station, and specifically 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 request end 101 and records the request receiving time t1. The battery swap request at least includes the scheduled battery swap time t2 and the battery swap temperature T; Select the target battery 70: The target battery 70 is a battery with a suitable power C at the scheduled battery replacement time t2; Charging and / or temperature control: The charging unit 40 in the battery swap station charges the target battery 70, and / or the temperature control unit 50 in the battery swap station adjusts the temperature of the target battery 70, so that the target battery 70 has an appropriate power level C and battery swap temperature T at the scheduled battery swap time t2.

[0037] Battery replacement: The battery replacement unit 60 in the battery replacement station replaces the target battery 70 to the vehicle to be replaced.

[0038] In an example scenario, the control unit 10 and the requesting end 101 are communicated via the cloud 102, and the above-mentioned step of receiving a battery swap request also includes: the user sends the battery swap request to the cloud 102 via the requesting end 101, and the cloud 102 sends the battery swap request to the corresponding target battery swap station.

[0039] When the battery replacement request includes the vehicle model, the cloud 102 or the control unit 10 stores the matching information of the vehicle model and the battery model to select the corresponding battery model according to the battery replacement request; when the battery replacement request includes the battery model, the cloud 102 sends the battery replacement request to the corresponding target battery replacement station.

[0040] In an example scenario, the above-mentioned step of receiving a battery replacement request also includes: when the battery replacement request includes a vehicle model or a battery model, the control unit 10 sends a first control instruction to the detection unit 20, and the first control instruction includes battery model information.

[0041] The above-mentioned step of selecting the target battery 70 also includes: the detection unit 20 receives the first control instruction, and detects the power information and temperature information of the battery in the battery swap station that is consistent with the battery model information, and 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. In this step, the detection unit 20 does not need to detect the power information and temperature information of all batteries in the battery swap station, but only needs to detect the corresponding model of batteries.

[0042] In an exemplary solution, if at least two users send battery replacement requests to the control unit 10 through the request end 101, the above-mentioned step of receiving the battery replacement request further includes: the control unit 10 receives the battery replacement requests from at least two request ends 101, and groups the battery replacement requests according to the battery model information, and sorts the scheduled battery replacement times t2 in the same group in chronological order; The above-mentioned battery replacement step also includes: step S1.1, the battery replacement unit 60 replaces the target battery 70 with the vehicle to be replaced according to the time sequence of the vehicles to be replaced arriving at the battery replacement station; Step S1.2, the calculation unit 30 calculates the charging power required by the remaining target batteries 70, and cooperates with the charging unit 40 to charge the target batteries 70, and / or, the calculation unit 30 calculates the temperature adjustment power required by the remaining target batteries 70, and cooperates with the temperature control unit 50 to adjust the temperature of the remaining target batteries 70.

[0043] The above steps S1.1 and S1.2 can be repeated.

[0044] For ease of understanding, take two users of the same battery model sending battery replacement requests as an example, one of the users is recorded as the first vehicle, has a first scheduled battery replacement time t201, and selects the first target battery 701, and the other user is the second vehicle, has a second scheduled battery replacement time t202, and selects the second target battery 702. The first scheduled battery replacement time t201 is earlier than the second scheduled battery replacement time t202. If the second vehicle arrives at the battery replacement station before the first vehicle, the first target battery 701 can be replaced with the second vehicle first, and then according to the battery replacement request of the first vehicle, the charging power of the second target battery 702 is calculated by the calculation unit 30 and adjusted in cooperation with the charging unit 40, and / or, the temperature control unit 50 is cooperated to adjust the temperature regulation power of the second target battery 702, so that the second target battery 702 can meet the battery replacement request of the first vehicle.

[0045] In an example scheme, the target battery 70 includes a first battery 71, which has an appropriate power level C and a battery replacement temperature T at the request receiving time t1, that is, when the user sends a battery replacement request, the first battery 71 is just charged to the appropriate power level C, and its temperature after charging just meets the battery replacement temperature T. The above-mentioned step of selecting the target battery 70 also includes: when the target battery 70 is the first battery 71, the charging unit 40 is not put into use, and the temperature control unit 50 is put into use, and the first battery 71 is kept warm so that the first battery 71 maintains an appropriate power level C and a battery replacement temperature T at the scheduled battery replacement time t2.

[0046] In an exemplary solution, the target battery 70 includes a second battery 72, and the second battery 72 has an appropriate power C and a temperature higher than the battery replacement temperature T at the request receiving time t1, that is, when the user sends a battery replacement request, the second battery 72 is just charged to the appropriate power C, but its temperature after charging is higher than the battery replacement temperature T required by the user. The above-mentioned step of selecting the target battery 70 also includes: when the target battery 70 is the second battery 72, the charging unit 40 is not put into use, 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 1 72a that can be naturally cooled to the battery exchange temperature T at the scheduled battery exchange time t2, the temperature control unit 50 is not put into use; if the calculation unit 30 calculates that the second battery 72 is the second battery 2 72b that cannot be naturally cooled to the battery exchange temperature T at the scheduled battery exchange time t2, the temperature control unit 50 is put into use to cool the second battery 2 72b so that the second battery 2 72b is cooled to the battery exchange temperature T at the scheduled battery exchange time t2; If the calculation unit 30 calculates that the second battery 72 is the second battery three 72c that can be naturally cooled 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 the second battery 72 maintains the battery replacement temperature T at the scheduled battery replacement time t2.

[0047] Exemplarily, the calculation unit 30 can calculate the required temperature adjustment power based on data such as the request reception time t1, the scheduled battery replacement time t2, the battery replacement temperature T and the current temperature of the target battery 70, so that the temperature control unit 50 can adjust the temperature of the target battery 70 according to the required temperature adjustment power.

[0048] In an example scenario, the target battery 70 includes a third battery 73, which has an appropriate power C at the request receiving time t1 and a temperature lower than the battery replacement temperature T, that is, when the user sends a battery replacement request, the third battery 73 has been charged to the appropriate power C, but its temperature is lower than the battery replacement temperature T. The above-mentioned step of selecting the target battery 70 also includes: when the target battery 70 is the third battery 73, the charging unit 40 is not put into use, and the temperature control unit 50 is put into use to heat the third battery 73, so that the third battery 73 is heated to the battery replacement temperature T at the scheduled battery replacement time t2.

[0049] In an exemplary embodiment, the step of selecting the target battery 70 further includes: S2.1. First determine whether there is a second battery 72a that can be naturally cooled to the battery replacement temperature T at the scheduled battery replacement time t2. If so, 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 entire station is relatively low; S2.2, if the second battery 1 72a does not exist, the second battery 3 72c that can be naturally cooled to the battery replacement 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 the heat preservation operation, and the heat preservation time is short, and the energy consumption of the whole station is relatively low; S2.3, if the second battery 72c does not exist, select the first battery 71 with suitable power C and battery replacement 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 the heat preservation operation, the heat preservation time is longer, but the energy consumption of the whole station is relatively low; S2.4. If the first battery 71 does not exist, select the second battery 72b or the third battery 73.

[0050] In this example, based on the battery replacement request, the solution with the lowest energy consumption for the entire station can be selected to manage the battery and meet the battery replacement needs.

[0051] In an example scenario, the target battery 70 includes a fourth battery 74. The fourth battery 74 is low on power at the request receiving time t1, but can be charged to an appropriate power level C and has a battery replacement temperature T at the scheduled battery replacement time t2. The above-mentioned step of selecting the target battery 70 also includes: when the target battery 70 is the fourth battery 74, the temperature control unit 50 is not put into use, and the charging unit 40 is put into use to charge the fourth battery 74 so that the fourth battery 74 has an appropriate power level C and a battery replacement temperature T at the scheduled battery replacement time t2.

[0052] The above-mentioned step of selecting the target battery 70 also includes: S2.11, determine whether the fourth battery 74 exists, if so, 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. Exemplarily, it can be compared with the energy consumption of the temperature control unit 50 put into use in step S2.2. If the energy consumption of the charging unit 40 in step S2.11 is larger, step S2.2 precedes step S2.11.

[0053] In an example scenario, the target battery 70 includes a fifth battery 75. The fifth battery 75 is low on power at the request receiving time t1, but can be charged to an appropriate power C at a second time t4 before the scheduled battery replacement time t2, and the temperature does not meet the battery replacement temperature T at the second time t4. The above-mentioned step of selecting the target battery 70 also includes: 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.

[0054] When the temperature of the fifth battery 75 is the battery exchange temperature T at the second time t4, the temperature control unit 50 performs an insulation operation on the fifth battery 75; when the temperature of the fifth battery 75 is higher than the battery exchange 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 exchange temperature T, the temperature control unit 50 performs a heating operation on the fifth battery 75.

[0055] It can be understood that in addition to adjusting the temperature of the target battery 70 to the battery replacement temperature T, the above-mentioned temperature control unit 50 can also adjust the temperature of the target battery 70 before charging 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 replacement temperature T, and therefore the description of the temperature control unit 50 when the target battery 70 is charging is omitted.

[0056] Due to the different electricity consumption times in a day, electricity prices will have multiple periods such as peak, flat and off periods. The cost of electricity use is higher during peak periods, and lower during off-peak periods. Therefore, in order to save the investment cost of the battery swap station, the charging unit 40 and / or the temperature control unit 50 is preferably put into use during flat or off-peak periods.

[0057] Therefore, in an exemplary solution, the above-mentioned step of selecting the target battery 70 further includes: if the request receiving time t1 and the scheduled battery replacement time t2 are both in the high-usage period or the low-usage period, the target battery 70 preferentially selects the battery with the appropriate power C at the request receiving time t1, or the target battery 70 preferentially selects the battery whose power does not reach the appropriate power C at the request receiving time t1, but has the appropriate power C at the scheduled battery replacement time t2; If the request receiving time t1 is in a period of low power consumption or a period of off-peak power consumption, and the scheduled battery replacement time t2 is in a period of peak power consumption, the target battery 70 gives priority to a battery with an appropriate power C at the request receiving time t1, or the target battery 70 gives priority to a battery that has not reached the appropriate power C at the request receiving time t1, but has an appropriate power C at the third time t5 before the scheduled battery replacement time t2; the third time t5 is the dividing point between the period of low power consumption or a period of off-peak power consumption and the period of peak power consumption, 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, and the calculation unit 30 can calculate the temperature adjustment power to cooperate with the temperature control unit 50 to perform insulation, cooling or heating operations according to the current temperature of the target battery 70, so that the target battery 70 has a battery replacement temperature T at the scheduled battery replacement time t2.

[0058] If the request receiving time t1 and the scheduled battery replacement time t2 are both during peak power consumption periods, the target battery 70 preferentially selects the battery with the appropriate power C at the request receiving time t1. The charging unit 50 charges the target battery 70 to the appropriate power C during the flat or valley period before the request receiving time t1 is reached. During the peak power consumption period, only the temperature control unit 50 needs to adjust the temperature of the target battery 70, so as to reduce the management cost of the battery replacement station.

[0059] In an example scenario, the aforementioned battery replacement step also includes: if after the scheduled battery replacement time t2 arrives, the vehicle to be replaced that has issued the battery replacement request fails to arrive at the battery replacement station for battery replacement, the temperature control unit 50 performs a heat preservation operation on the target battery 70 and keeps it warm until the fourth time t6 after the scheduled battery replacement time t2.

[0060] In one example, the user may send the fourth time t6 to the control unit 10 through the request end 101, the control unit 10 sends the second control instruction to the temperature control unit 50, the temperature control unit 50 receives the second control instruction, and then keeps the target battery 70 warm to the fourth time t6. In another example, the user may send the real-time location to the control unit 10 through the request end 101, the control unit 10 sends the third control instruction to the calculation unit 30, the calculation unit 30 receives the third control instruction, and calculates the fourth time t6 according to the real-time location of the user (the vehicle to be replaced), the current vehicle speed and the location of the battery replacement station, the temperature control unit 50 may directly obtain the fourth time t6 from the calculation unit 30, or the calculation unit 30 sends the fourth time t6 to the control unit 10, the control unit 10 sends the second control instruction to the temperature control unit 50, and the temperature control unit 50 receives the second control instruction to achieve the insulation of the target battery 70.

[0061] The battery swap control method of the battery swap station proposed in the present invention is that the battery swap station can adjust the temperature of the batteries stored in the station when there is a battery swap request. There is no need to adjust the temperature of the batteries all the time, which reduces the energy consumption of the entire station and saves the cost of the entire station. When the target battery 70 with the battery swap temperature T is replaced on the vehicle to be replaced, the target battery 70 is already at a suitable discharge temperature, and the vehicle does not need to reheat it, which reduces the vehicle's power loss, improves the driving experience of the entire vehicle, and helps to increase the vehicle's cruising range.

[0062] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A battery management system for a battery swap station, characterized in that: include: The control unit (10) receives a battery replacement request from a requesting end (101) and records a request receiving time t1, wherein the battery replacement request at least includes a scheduled battery replacement time t2 and a battery replacement temperature T. The detection unit (20) detects the power information and temperature information of the battery in the battery swap station. a calculation unit (30) for collecting the power information and temperature information detected by the detection unit (20), performing calculations, and selecting a target battery (70) whose power and temperature can satisfy the battery replacement request at the scheduled battery replacement time t2, a charging unit (40), configured to perform a charging operation on the target battery (70), a temperature control unit (50), used to adjust the temperature of the target battery (70), and a battery replacement unit (60), used to replace the target battery (70) with the vehicle to be replaced, 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 with each other.

2. A method for controlling battery swapping at a battery swapping station, characterized in that: The battery management system for a battery swap station as claimed in claim 1 comprises the following steps: Receiving a battery swap request: a control unit (10) in the battery swap station receives a battery swap request from a requesting end (101) and records a request receiving time t1, wherein the battery swap request at least includes a scheduled battery swap time t2 and a battery swap temperature T; Selecting a target battery (70): the target battery (70) is a battery having a suitable power C at the scheduled battery replacement time t2; Charging and / or temperature control: the charging unit (40) in the battery swap station performs a charging operation on the target battery (70), and / or the temperature control unit (50) in the battery swap station performs temperature adjustment on the target battery (70), so that the target battery (70) has an appropriate power level C and a battery swap temperature T at the scheduled battery swap time t2; Battery replacement: The battery replacement unit (60) in the battery replacement station replaces the target battery (70) with the vehicle to be replaced.

3. The method for controlling battery swapping at a battery swapping station according to claim 2, characterized in that: The step of receiving a battery replacement request further comprises: when the battery replacement request includes a vehicle model or a battery model, the control unit (10) sends a first control instruction to the detection unit (20), the first control instruction including battery model information; The step of selecting a target battery (70) also includes: the detection unit (20) receives the first control instruction and detects the power information and temperature information of the battery 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 a target battery (70) whose power and temperature can meet the battery replacement request at the scheduled battery replacement time t2.

4. The method for controlling battery swapping at a battery swapping station according to claim 3, characterized in that: The step of receiving a battery replacement request comprises: the control unit (10) receiving battery replacement requests from at least two requesting ends (101), grouping the battery replacement requests according to battery model information, and arranging the scheduled battery replacement times t2 in the same group in chronological order; The battery replacement step further comprises: the battery replacement unit (60) replaces the target battery (70) with the vehicle to be replaced according to the time sequence of the vehicles to be replaced arriving at the battery replacement station; The calculation unit (30) calculates the charging power required by the remaining target battery (70), and cooperates with the charging unit (40) to charge the target battery (70), and / or the calculation unit (30) calculates the temperature adjustment power required by the remaining target battery (70), and cooperates with the temperature control unit (50) to adjust the temperature of the remaining target battery (70).

5. The battery swap control method of claim 2 or 3, characterized in that: The step of selecting a target battery (70) also includes: when the selected target battery (70) is a first battery (71), the first battery (71) has a suitable power level C and a battery replacement temperature T at the request receiving time t1, the charging unit (40) is not put into use, 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 power level C and a battery replacement temperature T at the scheduled battery replacement time t2; or, when the selected target battery (70) is a third battery (73), the third battery (73) has a suitable power level C at the request receiving time t1 and the temperature is lower than the battery replacement temperature T, the charging unit (40) is not put into use, and the temperature control unit (50) performs a heating operation on the third battery (73) so that the third battery (73) is heated to the battery replacement temperature T at the scheduled battery replacement time t2.

6. The method for controlling battery swapping at a battery swapping station according to claim 2 or 3, characterized in that: The step of selecting a target battery (70) further comprises: when the selected target battery (70) is a second battery (72), the second battery (72) has a suitable power level C at the request receiving time t1, and the temperature is higher than the battery replacement temperature T, the charging unit (40) is not put into use, and the calculation unit (30) calculates the natural cooling speed of the second battery (72): If the calculation unit (30) calculates that the second battery (72) is a second battery 1 (72a) that can be naturally cooled to the battery replacement temperature T at the scheduled battery replacement time t2, the temperature control unit (50) is not put into use; If the calculation unit (30) calculates that the second battery (72) is a second battery 2 (72b) that cannot be naturally cooled to the battery exchange temperature T at the scheduled battery exchange time t2, the temperature control unit (50) is put into use to cool the second battery 2 (72b) so that it is cooled to the battery exchange temperature T at the scheduled battery exchange time t2; If the calculation unit (30) calculates that the second battery (72) is a second battery three (72c) that can be naturally cooled 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.

7. The battery swap control method of claim 2 or 3, characterized in that: The step of selecting a target battery (70) also includes: when the selected target battery (70) is a fourth battery (74), the fourth battery (74) is insufficiently charged at the request receiving time t1, but can be charged to a suitable charge C and has a battery replacement temperature T at the scheduled battery replacement time t2, the temperature control unit (50) is not put into use, and the charging unit (40) is put into use to charge the fourth battery (74) so ​​that the fourth battery (74) has a suitable charge C and a battery replacement temperature T at the scheduled battery replacement time t2.

8. The battery swap control method of claim 2 or 3, characterized in that: The step of selecting a target battery (70) also includes: when the selected target battery (70) is a fifth battery (75), the fifth battery (75) is insufficiently charged at the request receiving time t1, and can be charged to an appropriate charge C at a second time t4 before the scheduled battery replacement time t2, but the temperature does not meet the battery replacement 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).

9. The method for controlling battery swapping at a battery swapping station according to claim 2, characterized in that: The step of selecting a target battery (70) further includes: the request receiving time t1 and the scheduled battery replacement time t2 are both in a high-usage period or a low-usage period, the target battery (70) is a battery with an appropriate power C at the request receiving time t1, or the target battery (70) is a battery whose power does not reach the appropriate power C at the request receiving time t1, but has an appropriate power C at the scheduled battery replacement time t2; Or, the request receiving time t1 is in a period of high or low power consumption, and the scheduled battery replacement time t2 is in a period of peak power consumption, and the target battery (70) is a battery with an appropriate power level C at the request receiving time t1, or the target battery (70) is a battery whose power level does not reach the appropriate power level C at the request receiving time t1, but has an appropriate power level C at a third time t5 before the scheduled battery replacement time t2; Alternatively, the request receiving time t1 and the scheduled battery replacement time t2 are both during peak power consumption periods, and the target battery (70) is a battery with an appropriate power level C at the request receiving time t1.

10. The method for controlling battery swapping at a battery swapping station according to claim 2, characterized in that: The battery replacement step also includes: if the vehicle to be replaced that has issued the battery replacement request fails to arrive at the battery replacement station after the scheduled battery replacement time t2 arrives, the temperature control unit (50) performs a heat preservation operation on the target battery (70) to keep it warm until the fourth time t6 after the scheduled battery replacement time t2.

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