Charging module switching method and device, equipment and storage medium

Abstract

The invention provides a charging module switching method and device, equipment and a storage medium, and the method comprises the steps: predicting the charging demand information of a target vehicle at a target time point at a current time point, obtaining the predicted charging demand information of the target vehicle, and enabling the target vehicle to be a vehicle being charged at present, the target time point is a future time point after the current time point; and before the target time point arrives, charging module switching is carried out according to the predicted charging demand information. According to the technical scheme, the charging requirement of the vehicle can be matched in time, charging time is shortened, and charging efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of charging technology, and in particular to a charging module switching method, device, equipment and storage medium. Background Art

[0002] A charging pile is a device that provides charging services for electric vehicles. Electric vehicles can obtain electricity by connecting the charger and the charging pile to replenish battery energy.

[0003] During the charging process, the charging pile and the electric vehicle will interact with each other to exchange charging parameters in the charging process to meet the charging needs of the electric vehicle. During the charging interaction, the electric vehicle will send the power required for charging to the charging pile. The power required for charging the electric vehicle is the required power. After determining the required power of the electric vehicle, the charging pile completes the switching of the charging module according to the required power of the electric vehicle, so that the power output of the charging pile matches the required power. Since it takes a certain amount of time to complete the switching, the power output of the charging pile cannot match the required power of the electric vehicle in time, which will prolong the charging time. Summary of the invention

[0004] The present application provides a charging module switching method, device, equipment and storage medium to solve the technical problem that the charging time is prolonged due to the power output of the charging pile not being able to match the power demand of the electric vehicle in a timely manner.

[0005] In a first aspect, a charging module switching method is provided, comprising:

[0006] Predicting charging demand information of a target vehicle at a target time point at a current time point to obtain predicted charging demand information of the target vehicle, wherein the target vehicle is a vehicle currently being charged, and the target time point is a future time point after the current time point;

[0007] Before the target time point arrives, the charging module is switched on and off according to the predicted charging demand information.

[0008] In this technical solution, the predicted charging demand information of the target vehicle is obtained by predicting the charging demand information of the target vehicle at the target time point at the current time point, and the charging module is switched according to the predicted charging demand information of the target vehicle before the target time point arrives. Since the target time point is a future time point after the current time point, it is equivalent to predicting the charging demand of the vehicle currently being charged in advance and switching the charging module in advance. This can reduce the time difference between the time point when the switching is completed and the target time point, thereby timely matching the charging demand of the vehicle, shortening the charging time, and improving the charging efficiency.

[0009] In combination with the first aspect, in a possible implementation, predicting the charging demand information of the target vehicle at the target time point at the current time point to obtain the predicted charging demand information of the target vehicle includes: predicting the charging curve of the target vehicle based on the vehicle information of the target vehicle at the current time point to obtain the target charging curve, the target charging curve is used to reflect the change of the charging demand of the target vehicle over time; determining the charging demand information of the target vehicle at the target time point based on the target charging curve to obtain the predicted charging demand information. The prediction of the charging curve of the vehicle is completed according to the vehicle information of the vehicle, and the charging demand information of the vehicle at a future time point is determined based on the predicted charging curve, so that the charging demand of the vehicle can be predicted in advance.

[0010] In combination with the first aspect, in a possible implementation, the method further includes: when the target time point is reached, determining the charging demand information of the target vehicle at the target time point to obtain the actual charging demand information of the target vehicle; determining the demand information difference between the actual charging demand information and the predicted charging demand information to obtain a first demand information difference; if the first demand information difference is greater than a first preset threshold, updating the target charging curve based on the actual charging demand information. In the case where the actual charging demand of the vehicle differs greatly from the predicted charging demand of the vehicle, updating the charging curve of the vehicle according to the actual charging demand of the vehicle can achieve calibration of the charging curve, thereby making the charging demand predicted based on the charging curve more accurate.

[0011] In combination with the first aspect, in a possible implementation, before the target time point arrives, before the charging module is switched according to the predicted charging demand information, it also includes: judging whether the predicted charging demand information is the same as the current charging demand information, and the current charging demand information is the charging demand information of the target vehicle at the current time point; if the predicted charging demand information is different from the current charging demand information, executing the step of switching the charging module according to the predicted charging demand information before the target time point arrives. Switching the charging module only when the charging demand changes can avoid frequent switching, and the output of the charging equipment can meet the charging demand of the vehicle in real time.

[0012] In combination with the first aspect, in a possible implementation, before the target time point arrives, switching the charging module according to the predicted charging demand information includes: determining the duration between the current time point and the target time point to obtain the target duration; if the target duration is less than or equal to the duration required for switching, switching the charging module according to the predicted charging demand information at the current time point; if the target duration is greater than the duration required for switching, switching the charging module according to the predicted charging demand information at a delayed time point after the current time point, and the duration between the delayed time point and the current time point is equal to the difference between the target duration and the duration required for switching. When the duration between the current time point and the future time point is less than or equal to the duration required for switching, switching the charging module at the current time point can reduce the time difference between the time point when switching is completed and the target time point; when the duration between the current time point and the future time point is greater than the duration required for switching, switching the charging module after a corresponding delay can make the output of the charging module at the future time point just match the charging demand of the vehicle at the future time point.

[0013] In combination with the first aspect, in a possible implementation, the method further includes: when the target time point is reached, determining the charging demand information of the target vehicle at the target time point to obtain the actual charging demand information of the target vehicle; determining the demand information difference between the actual charging demand information and the predicted charging demand information to obtain a first demand information difference; if the first demand information difference is greater than a second preset threshold, switching the charging module according to the first demand information difference. In the case where the actual charging demand of the vehicle differs greatly from the predicted charging demand of the vehicle, switching the charging module according to the demand difference between the actual charging demand of the vehicle and the predicted charging demand of the vehicle can make the output of the charging device meet the charging demand of the vehicle.

[0014] In combination with the first aspect, in a possible implementation, the switching of charging modules according to the predicted charging demand information includes: determining the demand information difference between the predicted charging demand information and the current charging demand information to obtain a second demand information difference, wherein the current charging demand information is the charging demand information of the target vehicle at the current time point; if the predicted charging demand information is greater than the current charging demand information, an idle charging module matching the second demand information difference is put into the target vehicle; if the predicted charging demand information is less than the current charging demand information, an allocated charging module matching the second demand information difference is cut out from the charging modules allocated to the target vehicle. Selecting the charging modules that need to be put in and cut out according to the demand information difference between the predicted charging demand information and the current charging demand information can reduce some switching operations and improve the speed of charging module switching.

[0015] In a second aspect, a charging module switching device is provided, comprising:

[0016] A charging demand prediction module is used to predict the charging demand information of a target vehicle at a target time point at a current time point to obtain the predicted charging demand information of the target vehicle, wherein the target vehicle is a vehicle currently being charged, and the target time point is a future time point after the current time point;

[0017] The charging switching module is used to switch the charging module according to the predicted charging demand information before the target time point arrives.

[0018] In a third aspect, a computer device is provided, comprising a memory, a communication interface, and one or more processors, wherein the memory is connected to the one or more processors, the communication interface is used to transmit data, and the one or more processors are used to execute one or more computer programs stored in the memory, and when the one or more processors execute the one or more computer programs, the computer device implements the charging module switching method of the first aspect.

[0019] In a fourth aspect, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores a computer program, wherein the computer program includes program instructions, and when the program instructions are executed by a processor, the processor executes the charging module switching method of the first aspect.

[0020] The present application can achieve the following technical effects: since the target time point is a future time point after the current time point, it is equivalent to predicting the charging needs of the vehicle currently being charged in advance and switching the charging module in advance, which can reduce the time difference between the time point when the switching is completed and the target time point, thereby timely matching the vehicle's charging needs, shortening the charging time, and improving the charging efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0022] Figure 1 A schematic diagram of a charging scenario provided in an embodiment of the present application;

[0023] Figure 2 A schematic diagram of the structure of the charging device provided in the embodiment of the present application;

[0024] Figure 3A schematic diagram of a power module provided in an embodiment of the present application;

[0025] Figure 4 A schematic diagram of a flow chart of a charging module switching method provided in an embodiment of the present application;

[0026] Figure 5 A schematic diagram of a flow chart of another charging module switching method provided in an embodiment of the present application;

[0027] Figure 6 A schematic diagram of a charging curve provided in an embodiment of the present application;

[0028] Figure 7 A schematic diagram of a flow chart of another charging module switching method provided in an embodiment of the present application;

[0029] Figure 8 It is a structural schematic diagram of a charging module switching device provided in an embodiment of the present application;

[0030] Fig. 9 It is a structural diagram of a computer device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0032] It should be noted that, if there is no conflict, the various features in the embodiments of the present application can be combined with each other, all within the scope of protection of the present application. In addition, although the functional module division is performed in the device schematic diagram and the logical order is shown in the flow chart, in some cases, the steps shown or described can be performed in a sequence different from the module division in the device or the flow chart. Furthermore, the words "first", "second", "third", etc. used in this application do not limit the data and execution order, but only distinguish the same items or similar items with basically the same functions and effects.

[0033] The technical solution of this application is applicable to charging scenarios. The charging scenarios can be as follows Figure 1 As shown, it is a scenario where a charging device charges a car, and the charging device includes but is not limited to a charging pile, a charging station, etc.

[0034] To facilitate understanding, the composition structure of the charging equipment is first introduced.

[0035] See also Figure 2 , Figure 2 A schematic diagram of the composition structure of the charging device provided in the embodiment of the present application is shown in FIG. Figure 2 As shown, the charging device 10 includes a charging controller 101 and a charging circuit 102. During the process of charging the vehicle, the charging controller 101 can be connected to the vehicle to be charged, obtain the vehicle information and charging demand information of the vehicle to be charged, and control the charging circuit 102 to perform corresponding charging output according to the charging demand information of the vehicle to be charged. The charging circuit 102 includes a charging control module 1021 and a power module 1022. The charging control module 1021 is connected to the charging controller 101 and the power module 1022 respectively. During the process of charging the vehicle, the charging control module 1021 controls the power output of the power module 1022 to meet the charging demand of the vehicle according to the charging parameters and / or charging instructions issued by the charging controller 101. The power module 1022 is a device that converts alternating current into direct current, such as Figure 3 As shown, the power module 1022 includes a plurality of charging modules, each of which is electrically connected to the charging control module 1021 and connected to the DC bus through a switching switch, and the DC bus is connected to the charging output terminal (such as a charging gun). The charging control module 1021 can switch the charging module that matches the electrical parameters and / or charging instructions issued by the charging controller 101 according to the charging parameters and / or charging instructions issued by the charging controller, so that the power output by the power module 1022 meets the charging demand of the vehicle. The charging control module 1021 can turn on the switching switch between the charging module and the DC bus, thereby putting the charging module into the DC bus to allocate the charging module to the vehicle for charging; the charging control module 1021 can also disconnect the switching switch between the charging module and the DC bus, so that the charging module that has been put into the DC bus is cut out, so as to retract the charging module that has been allocated to the vehicle and stop charging the vehicle.

[0036] The charging device 10 can also be connected to background devices, cloud servers and other devices.

[0037] During the charging process, the charging device will communicate and interact with the vehicle to obtain the vehicle's charging needs in real time, and complete the switching of the corresponding charging module according to the vehicle's charging needs, so that the output of the charging device meets the vehicle's charging needs. Since the switching switch needs to be turned on or off, it takes a certain amount of time to complete the switching, and the switching process usually takes about 20 seconds. In this way, the output of the charging device can only meet the vehicle's charging needs after the delayed switching time, that is, it cannot match the vehicle's charging needs in time, which prolongs the vehicle's charging time.

[0038] In view of this, the present application proposes a charging module switching scheme, which predicts the vehicle's charging needs in advance and completes the switching of the charging module in advance. In this way, the switching completion time can be advanced, so that the output of the charging equipment can meet the vehicle's charging needs more quickly, shortening the vehicle's charging time.

[0039] The technical solution of this application is described in detail below.

[0040] See also Figure 4 , Figure 4 A schematic diagram of a flow chart of a charging module switching method provided in an embodiment of the present application, which method can be applied to a charging device or a device connected to the charging device (such as a background device, a cloud server, etc.), such as Figure 4 As shown, the method comprises the following steps:

[0041] S201, predicting charging demand information of a target vehicle at a target time point at a current time point to obtain predicted charging demand information of the target vehicle.

[0042] Here, the current time point is the time point currently in progress, the target vehicle is the vehicle currently being charged, and the target time point is a future time point after the current time point.

[0043] The target time point may be a time point after the current time point within the target time range, and the target time range takes the current time point as the starting time point. The target time range may be a time range with a fixed time length. For example, the time length of the target time range may be the time length required for switching, that is, the target time range uses the time point obtained by delaying the time length required for switching from the current time point as the end time point. The time length required for switching refers to the total time required for the charging device to complete the switching of the charging module, which may be 20 seconds, for example. The time length of the target time range may also be greater than the time length required for switching. The target time range may also be a time range with an indefinite time length. For example, the target time range may use the time point after the current time point when the charging demand information of the target vehicle changes as the end time point. The target time range and target time point may be set according to actual needs, and this application does not impose any restrictions.

[0044] The charging demand information of the target vehicle at the target time point is used to reflect the charging demand of the target vehicle at the target time point. The charging demand information of the target vehicle at the target time point may be the required power of the target vehicle at the target time point, or may be the required current and required voltage of the target vehicle at the target time point.

[0045] The predicted charging demand information of the target vehicle is the predicted charging demand information of the target vehicle at the target time point. The predicted charging demand information may be the predicted required power of the target vehicle at the target time point, or the predicted required current and predicted required voltage of the target vehicle at the target time point. The charging demand information of the target vehicle at the target time point may be predicted based on the vehicle information of the target vehicle to obtain the predicted charging demand information of the target vehicle.

[0046] After the predicted charging demand information of the target vehicle is predicted, it can be determined whether the predicted charging demand information of the target vehicle is the same as the current charging demand information. The current charging demand information is the charging demand information of the target vehicle at the current time point. The current charging demand information is used to reflect the actual charging demand of the target vehicle at the current time point. The current charging demand information can be obtained by the charging device interacting with the target vehicle at the current time point; if the predicted charging demand information of the target vehicle is different from the current charging demand information, it means that the charging demand of the target vehicle has changed at the target time point compared with the current time point, and step S202 is executed; if the predicted charging demand information of the target vehicle is the same as the current charging demand information, it means that the charging demand of the target vehicle has not changed at the target time point compared with the current time point, and the target vehicle is charged according to the current charging demand information, and the process returns to step S201.

[0047] The current charging demand information may be the required power of the target vehicle at the current time point, or the required current and required voltage of the target vehicle at the current time point. If the current charging demand information is the required power of the target vehicle at the current time point, the required power of the target vehicle at the current time point may be compared with the predicted required power of the target vehicle at the target time point to see if they are the same; if the required power of the target vehicle at the current time point is the same as the predicted required power of the target vehicle at the target time point, it means that the predicted charging demand information of the target vehicle is the same as the current charging demand information; if the required power of the target vehicle at the current time point is different from the predicted required power of the target vehicle at the target time point, it means that the predicted charging demand information of the target vehicle is different from the current charging demand information. If the current charging demand information is the required current and required voltage of the target vehicle at the current time point, the product of the required current and required voltage of the target vehicle at the current time point may be calculated to obtain the required power of the target vehicle at the current time point, and the product of the predicted required current and predicted required current of the target vehicle at the target time point may be calculated to obtain the predicted required power of the target vehicle at the target time point, and then the required power of the target vehicle at the current time point may be compared with the predicted required power of the target vehicle at the target time point to see if they are the same.

[0048] Optionally, it is also possible to determine whether the demand information difference between the predicted charging demand information and the current charging demand information of the target vehicle is greater than a preset demand difference. If the demand information difference between the predicted charging demand information and the current charging demand information of the target vehicle is greater than the preset demand difference, execute step S202; if the demand information difference between the predicted charging demand information and the current charging demand information of the target vehicle is less than or equal to the preset demand difference, skip executing step S202.

[0049] The charging module is switched on and off only when the charging demand changes, which can avoid frequent switching and enable the output of the charging equipment to meet the charging needs of the vehicle in real time.

[0050] S202, before the target time point arrives, switching the charging module on and off according to the predicted charging demand information of the target vehicle.

[0051] Here, switching the charging module according to the predicted charging demand information of the target vehicle means that, according to the predicted charging demand information of the target vehicle, a charging module matching the predicted charging demand information of the target vehicle is put into the DC bus connected to the target vehicle, so that the output of the charging device meets the predicted charging demand information of the target vehicle.

[0052] For example, the predicted charging demand information of the target vehicle is the predicted required power, and the predicted required power is 50kw. Switching the charging module according to the predicted charging demand information of the target vehicle means that a charging module with a total power of 50kw is put into the DC bus connected to the target vehicle, so that the power output of the charging equipment is 50kw.

[0053] In a feasible implementation, the charging module can be switched on and off through the following steps A1-A3:

[0054] A1. Determine a demand information difference between predicted charging demand information of a target vehicle and current demand charging information of the target vehicle to obtain a second demand information difference.

[0055] Here, the second demand information difference is used to reflect the demand difference between the charging demand of the target vehicle at the current time point and the predicted charging demand of the target vehicle at the target time point.

[0056] If the current charging demand information is the power demand of the target vehicle at the current time point, the difference between the predicted power demand of the target vehicle at the target time point and the power demand of the target vehicle at the current time point can be calculated to obtain the second demand information difference, that is, the second demand information difference is Δp = Pd1-P0, Pd1 represents the predicted power demand of the target vehicle at the target time point, and P0 represents the power demand of the target vehicle at the current time point. If the current charging demand information is the required current and required voltage of the target vehicle at the current time point, the product of the required current and the required voltage of the target vehicle at the current time point can be calculated to obtain the power demand of the target vehicle at the current time point, and the product of the predicted required current and the predicted required voltage of the target vehicle at the target time point can be calculated to obtain the predicted power demand of the target vehicle at the target time point, and then the difference between the predicted power demand of the target vehicle at the target time point and the power demand of the target vehicle at the current time point can be calculated to obtain the second demand information difference.

[0057] A2. If the predicted charging demand information is greater than the current charging demand information, an idle charging module matching the second demand information difference is deployed to the target vehicle.

[0058] Among them, the idle charging module is a charging module that has not yet been put into the DC bus, and the switching switch between the idle charging module and the DC bus is disconnected. The idle charging module that matches the second demand information difference (hereinafter referred to as the first idle charging module) refers to an idle charging module whose output power matches the second demand information difference, and the power output by the first idle charging module is greater than or equal to the second demand information difference. Putting the first idle charging module into the target vehicle refers to turning on the switching switch between the DC bus corresponding to the target vehicle and the first idle charging module, so that the first idle charging module can be used to charge the target vehicle, and the DC bus corresponding to the target vehicle refers to the DC bus connected to the target vehicle.

[0059] If the output powers of the charging modules in the charging device are the same, the first investment quantity can be determined according to the second demand information difference and the output power of the charging module, and n1 idle charging modules are randomly selected from the idle charging modules of the charging device as the first idle charging modules, where n1 is the first investment quantity. po represents the output power of a charging module, represents rounding up, and |Δp| ​​represents the absolute value of the second demand information difference.

[0060] If the output powers of the charging modules in the charging device are different, it can be determined whether there is an idle charging module whose output power is greater than the second demand information difference among the idle charging modules. If there is an idle charging module whose output power is greater than the second demand information difference, the idle charging module whose output power is closest to the second demand information difference is determined as the first idle charging module among the idle charging modules. If there is no idle charging module whose output power is greater than the second demand information difference, the idle charging module with the largest output power is selected from the idle charging modules as the first idle charging module, and the second demand information difference is updated to the difference between the second demand information difference and the output power of the most recently determined first idle charging module, and the step of determining whether there is an idle charging module whose output power is greater than the second demand information difference among the idle charging modules is returned until there is an idle charging module whose output power is greater than the second demand information difference, thereby obtaining one or more first idle charging modules.

[0061] A3. If the predicted charging demand information is less than the current charging demand information, cut out the allocated charging modules that match the second demand information difference from the charging modules allocated to the target vehicle.

[0062] Here, the charging module allocated to the target vehicle refers to the charging module that has been used to charge the target vehicle, and the switching switch between the charging module allocated to the target vehicle and the DC bus corresponding to the target vehicle is turned on. The allocated charging module matching the second demand information difference (hereinafter referred to as the first allocated charging module) refers to the allocated charging module whose output power matches the second demand information difference.

[0063] If the output powers of the charging modules in the charging device are the same, the first cut-out quantity can be determined according to the second demand information difference and the output power of the charging module, and any n2 allocated charging modules are selected from the charging modules allocated to the target vehicle as the first allocated charging modules, where n2 is the first cut-out quantity. Indicates rounding down.

[0064] If the output powers of the charging modules in the charging equipment are different, it can be determined whether there is an allocated charging module with an output power less than |Δp| ​​among the charging modules allocated to the target vehicle. If there is an allocated charging module with an output power less than |Δp|, the allocated charging module closest to |Δp| ​​is determined among the allocated charging modules with an output power less than |Δp| ​​as the first allocated charging module, and |Δp| ​​is updated to the difference between |Δp| ​​and the output power of the most recently determined first allocated charging module. The step of determining whether there is an allocated charging module with an output power less than the second demand information difference among the charging modules allocated to the target vehicle is returned until there is no allocated charging module with an output power less than |Δp|, thereby obtaining one or more first allocated charging modules.

[0065] Selecting the charging modules that need to be put into and cut out according to the demand information difference between the predicted charging demand information and the current charging demand information can reduce some switching operations and improve the switching speed of the charging modules.

[0066] In another feasible implementation, the charging modules may be switched in and out directly according to the predicted charging demand information. The idle modules matching the predicted charging demand information may be determined in the idle charging modules, all the charging modules currently allocated to the target vehicle may be switched out, and all the idle modules matching the predicted charging demand information may be switched in.

[0067] In some possible situations, the timing of switching on and off the charging module can also be determined. The duration between the current time point and the target time point can be determined to obtain the target duration; it is determined whether the target duration is greater than the duration required for switching; if the target duration is less than or equal to the duration required for switching, the charging module is switched on and off at the current time point according to the predicted charging demand information of the target vehicle; if the target duration is greater than the duration required for switching, the charging module is switched on and off at a delayed time point after the current time point according to the predicted charging demand information, and the duration between the delayed time point and the current time point is equal to the difference between the target duration and the duration required for switching.

[0068] For example, the current time point is represented as t0, the target time point is represented as td, the time required for switching is represented as T, the target time is represented as Δt, Δt=td-t0, if Δt≤T, the charging module is switched at t0 according to the predicted charging demand information of the target vehicle; if Δt>T, the charging module is switched at t1 according to the predicted charging demand information of the target vehicle, t1-t0=Δt-T.

[0069] When the duration between the current time point and the future time point is less than or equal to the time required for switching, the charging module is switched on at the current time point, which can reduce the time difference between the time point when the switching is completed and the target time point; when the duration between the current time point and the future time point is greater than the time required for switching, the charging module is switched on after a corresponding delay, which can make the output of the charging module at the future time point just match the charging needs of the vehicle at the future time point.

[0070] In the above Figure 4 In the corresponding technical solution, the predicted charging demand information of the target vehicle is obtained by predicting the charging demand information of the target vehicle at the target time point at the current time point, and the charging module is switched according to the predicted charging demand information of the target vehicle before the target time point arrives. Since the target time point is a future time point after the current time point, it is equivalent to predicting the charging demand of the vehicle currently being charged in advance and switching the charging module in advance. This can reduce the time difference between the time point when the switching is completed and the target time point, thereby timely matching the charging demand of the vehicle, shortening the charging time, and improving the charging efficiency.

[0071] See also Figure 5 , Figure 5 A flow chart of another charging module switching method provided in an embodiment of the present application, which method can be applied to a charging device or a device connected to the charging device (such as a backend device, a cloud server, etc.), such as Figure 5 As shown, the method comprises the following steps:

[0072] S301, predicting a charging curve of a target vehicle according to vehicle information of the target vehicle at a current time point to obtain a target charging curve.

[0073] Here, the target charging curve is used to reflect the change of the charging demand of the target vehicle over time. The target charging curve can be a charging curve representing the change of the required power of the target vehicle over time, or a charging curve representing the change of the required charging current and required voltage of the target vehicle over time.

[0074] The vehicle information of the target vehicle may include information such as the model information of the target vehicle and the battery specifications of the target vehicle; the vehicle information of the target vehicle may also include historical charging information of the target vehicle, and the historical charging information may include historical charging voltage, historical charging current, historical charging power, and so on.

[0075] In some possible situations, charging curve parameters corresponding to charging curves of different types of vehicles can be pre-stored, and the charging curve parameters are used to represent the correlation between charging demand information and time; the charging curve parameters corresponding to the vehicle information of the target vehicle can be obtained according to the vehicle information of the target vehicle, and the charging curve can be determined according to the charging curve parameters corresponding to the vehicle information of the target vehicle, thereby obtaining the target charging curve. For example, the charging curve can be expressed as y=f(t), y represents the charging demand information, t represents time, f() is a function expression, and the charging curve parameters are the parameters in f(). If the parameters in f() are known, f() corresponding to the vehicle information of the target vehicle can be obtained, thereby obtaining the target charging curve.

[0076] In some other possible situations, regression prediction or fitting prediction can also be performed based on the historical charging information of the target vehicle to obtain the charging curve parameters of the target vehicle, and the target charging curve can be obtained based on the charging curve parameters of the target vehicle. For example, the charging curve can be expressed as y=f(t), and the parameters in f() are unknown. Then the historical charging information can be substituted into y=f(t) to obtain multiple function expressions, and the parameters in f() can be solved based on the multiple function expressions to obtain the target charging curve.

[0077] This application does not limit the specific implementation method of predicting the target charging curve.

[0078] S302, determining charging demand information of a target vehicle at a target time point based on a target charging curve, and obtaining predicted charging demand information.

[0079] Among them, the charging demand information corresponding to the target time point in the target charging curve can be used as the predicted charging demand information.

[0080] For example, the target charging curve is a charging curve representing the change of the required power of the target vehicle over time. Figure 6 The target time point is Figure 6 td in, the predicted charging demand information is Figure 6 Pd1 in.

[0081] S303, before the target time point arrives, switching the charging module on and off according to the predicted charging demand information of the target vehicle.

[0082] Here, regarding the specific implementation method of step S303, please refer to the description of the aforementioned step S202, which will not be repeated here.

[0083] S304, when the target time point is reached, determining the charging demand information of the target vehicle at the target time point, and obtaining the actual charging demand information of the target vehicle.

[0084] The actual charging demand information of the target vehicle is used to reflect the real charging demand of the target vehicle at the target time point. The actual charging demand information of the target vehicle can be the actual required power of the target vehicle at the target time point, or the actual required current and actual required voltage of the target vehicle at the target time point. The control pilot (CP) signal of the target vehicle can be obtained, and the charging demand information of the target vehicle at the target time point can be obtained from the CP signal of the target vehicle to obtain the actual charging demand information of the target vehicle.

[0085] S305 , determining a demand information difference between actual charging demand information of the target vehicle and predicted charging demand information of the target vehicle to obtain a first demand information difference.

[0086] If the actual charging demand information of the target vehicle is the actual power demand of the target vehicle at the target time point, the difference between the predicted power demand of the target vehicle at the target time point and the actual power demand of the target vehicle at the target time point can be calculated to obtain the first demand information difference, that is, the first demand information difference is ΔP = Pd2-Pd1, Pd2 represents the actual power demand of the target vehicle at the target time point. If the actual charging demand information of the target vehicle is the actual demand current and the actual demand voltage of the target vehicle at the target time point, the product of the actual demand current and the actual demand voltage of the target vehicle at the target time point can be calculated to obtain the actual power demand of the target vehicle at the target time point, and the product of the predicted demand current and the predicted demand voltage of the target vehicle at the target time point can be calculated to obtain the predicted power demand of the target vehicle at the target time point, and then the difference between the predicted power demand of the target vehicle at the target time point and the actual power demand of the target vehicle at the target time point is calculated to obtain the first demand information difference.

[0087] S306: If the first demand information difference is greater than a first preset threshold, update the target charging curve based on actual charging demand information of the target vehicle.

[0088] Among them, the charging curve parameters corresponding to the target charging curve can be fine-tuned according to the actual charging demand information of the target vehicle, so as to update the target charging curve, that is, update the parameters in f() according to the target time point and the actual charging demand information of the target vehicle.

[0089] In the case where the actual charging demand of the vehicle differs greatly from the predicted charging demand of the vehicle, updating the charging curve of the vehicle according to the actual charging demand of the vehicle can calibrate the charging curve, thereby making the charging demand predicted based on the charging curve more accurate.

[0090] In the above Figure 5In the corresponding technical solution, the vehicle's charging curve is predicted according to the vehicle information, and the charging demand information of the vehicle at a future time point is determined based on the predicted charging curve. This can realize the early prediction of the vehicle's charging demand, and then the charging module can be switched in advance.

[0091] See also Figure 7 , Figure 7 A flow chart of another charging module switching method provided in an embodiment of the present application, which method can be applied to a charging device or a device connected to the charging device (such as a background device, a cloud server, etc.), such as Figure 7 As shown, the method comprises the following steps:

[0092] S401, predicting charging demand information of a target vehicle at a target time point at a current time point to obtain predicted charging demand information of the target vehicle.

[0093] S402, before the target time point arrives, switching the charging module on and off according to the predicted charging demand information of the target vehicle.

[0094] Here, regarding the specific implementation of steps S401 to S402, reference may be made to the related descriptions of the aforementioned steps S201 to S202 and steps S301 to S303, which will not be repeated here.

[0095] S403, when the target time point is reached, determining the charging demand information of the target vehicle at the target time point, and obtaining the actual charging demand information of the target vehicle.

[0096] S404, determining a demand information difference between actual charging demand information of the target vehicle and predicted charging demand information of the target vehicle to obtain a first demand information difference.

[0097] Here, regarding the specific implementation of steps S403 to S404, please refer to the description of the aforementioned steps S304 to S305, which will not be repeated here.

[0098] S405: If the first demand information difference is greater than a second preset threshold, switching the charging module is performed according to the first demand information difference.

[0099] If the actual charging demand information of the target vehicle is greater than the predicted charging demand information of the target vehicle, an idle charging module (hereinafter referred to as a second idle charging module) matching the first demand information difference is invested in the target vehicle.

[0100] If the output powers of the charging modules in the charging device are the same, the second input quantity can be determined according to the first demand information difference and the charging power output by the charging module, and n3 idle charging modules are randomly selected from the idle charging modules of the charging device as the second idle charging modules, where n3 is the second input quantity. |Δp| represents the absolute value of the first demand information difference.

[0101] If the output powers of the charging modules in the charging device are different, it can be determined whether there is an idle charging module with an output power greater than the first demand information difference in the idle charging modules. If there is an idle charging module with an output power greater than the first demand information difference, the idle charging module with an output power closest to the first demand information difference is determined as the second idle charging module among the idle charging modules with an output power greater than the first demand information difference. If there is no idle charging module with an output power greater than the first demand information difference, the idle charging module with the largest output power is selected from the idle charging modules as the second idle charging module, and the first demand information difference is updated to the difference between the first demand information difference and the output power of the most recently determined second idle charging module, and the step of determining whether there is an idle charging module with an output power greater than the first demand information difference in the idle charging modules is returned until there is an idle charging module with an output power greater than the first demand information difference, thereby determining one or more second idle charging modules.

[0102] If the actual charging demand information of the target vehicle is less than the predicted charging demand information of the target vehicle, an allocated charging module (hereinafter referred to as a second allocated charging module) matching the first demand information difference is cut out from the charging modules allocated to the target vehicle.

[0103] If the output powers of the charging modules in the charging device are the same, the second cut-out quantity can be determined according to the first demand information difference and the charging power output by the charging module, and any n4 allocated power supply modules are selected from the charging modules allocated to the target vehicle as the second allocated power supply modules, where n4 is the second cut-out quantity.

[0104] If the output powers of the charging modules in the charging equipment are different, it can be determined whether there is an allocated charging module with an output power less than |ΔP| among the charging modules allocated to the target vehicle. If there is an allocated charging module with an output power less than the first demand information difference, the allocated charging module closest to |ΔP| is determined among the allocated charging modules with an output power less than |ΔP| as the second allocated charging module, and |ΔP| is updated to the difference between |ΔP| and the output power of the most recently determined second allocated charging module. Return to execute the step of determining whether there is an allocated charging module with an output power less than |ΔP| among the charging modules allocated to the target vehicle, until there is no allocated charging module with an output power less than |ΔP|, thereby obtaining one or more first allocated charging modules.

[0105] In the above Figure 7 In the corresponding technical solution, the charging demand information of the target vehicle at the target time point is predicted at the current time point to obtain the predicted charging demand information of the target vehicle, and before the target time point arrives, the charging module is switched according to the predicted charging demand information of the target vehicle, and then at the target time point, the charging demand information of the target vehicle at the target time point is determined to obtain the actual charging demand information of the target vehicle, and when the actual charging demand of the vehicle is significantly different from the predicted charging demand of the vehicle, the charging module is switched according to the difference between the actual charging demand of the vehicle and the predicted charging demand of the vehicle, so that the output of the charging equipment can meet the charging demand of the vehicle.

[0106] The method of the present application is introduced above, and the device of the present application is introduced next.

[0107] See also Figure 8 , Figure 8 is a structural schematic diagram of a charging module switching device provided in an embodiment of the present application, such as Figure 8 As shown, the charging module switching device 50 includes:

[0108] The charging demand prediction module 501 is used to predict the charging demand information of the target vehicle at the target time point at the current time point, and obtain the predicted charging demand information of the target vehicle, wherein the target vehicle is a vehicle currently being charged, and the target time point is a future time point after the current time point;

[0109] The charging switching module 502 is used to switch the charging module according to the predicted charging demand information before the target time point arrives.

[0110] In one possible design, the charging demand prediction module 501 is specifically used to predict the charging curve of the target vehicle based on the vehicle information of the target vehicle at the current time point to obtain a target charging curve, where the target charging curve is used to reflect how the charging demand of the target vehicle changes over time; and determine the charging demand information of the target vehicle at the target time point based on the target charging curve to obtain the predicted charging demand information.

[0111] In one possible design, the charging demand prediction module 501 is also used to, when reaching the target time point, determine the charging demand information of the target vehicle at the target time point, and obtain the actual charging demand information of the target vehicle; determine the demand information difference between the actual charging demand information and the predicted charging demand information, and obtain a first demand information difference; if the first demand information difference is greater than a first preset threshold, update the target charging curve based on the actual charging demand information.

[0112] In a possible design, the charging switching module 502 is also used to determine whether the predicted charging demand information is the same as the current charging demand information, and the current charging demand information is the charging demand information of the target vehicle at the current time point; if the predicted charging demand information is different from the current charging demand information, execute the step of switching the charging module according to the predicted charging demand information before the target time point arrives.

[0113] In one possible design, the charging switching module 502 is specifically used to determine the duration between the current time point and the target time point to obtain the target duration; if the target duration is less than or equal to the duration required for switching, the charging module is switched at the current time point according to the predicted charging demand information; if the target duration is greater than the duration required for switching, the charging module is switched at a delayed time point after the current time point according to the predicted charging demand information, and the duration between the delayed time point and the current time point is equal to the difference between the target duration and the duration required for switching.

[0114] In a possible design, the charging switching module 502 is also used to, when reaching the target time point, determine the charging demand information of the target vehicle at the target time point to obtain the actual charging demand information of the target vehicle; determine the demand information difference between the actual charging demand information and the predicted charging demand information to obtain a first demand information difference; if the first demand information difference is greater than a second preset threshold, perform charging module switching according to the first demand information difference.

[0115] In one possible design, the charging switching module 502 is specifically used to determine the demand information difference between the predicted charging demand information and the current charging demand information to obtain a second demand information difference, where the current charging demand information is the charging demand information of the target vehicle at the current time point; if the predicted charging demand information is greater than the current charging demand information, an idle charging module matching the second demand information difference is added to the target vehicle; if the predicted charging demand information is less than the current charging demand information, an allocated charging module matching the second demand information difference is cut out from the charging modules allocated to the target vehicle.

[0116] It should be noted that Figure 8 For the contents not mentioned in the corresponding embodiments, please refer to the description of the aforementioned method embodiments, which will not be repeated here.

[0117] The above-mentioned device obtains the predicted charging demand information of the target vehicle by predicting the charging demand information of the target vehicle at the target time point at the current time point, and switches the charging module according to the predicted charging demand information of the target vehicle before the target time point arrives. Since the target time point is a future time point after the current time point, it is equivalent to predicting the charging demand of the vehicle currently being charged in advance and switching the charging module in advance. This can reduce the time difference between the time point when the switching is completed and the target time point, thereby timely matching the charging demand of the vehicle, shortening the charging time, and improving the charging efficiency.

[0118] See also Fig. 9 , Fig. 9 6 is a schematic diagram of a computer device provided in an embodiment of the present application, wherein the computer device 60 includes a processor 601, a memory 602, and a communication interface 603. The memory 602 and the communication interface 603 are connected to the processor 601, for example, through a bus.

[0119] The processor 601 is configured to support the computer device 60 to perform the corresponding functions in the method in the above method embodiment. The processor 601 can be a central processing unit (CPU), a network processor (NP), a hardware chip or any combination thereof. The above hardware chip can be an application specific integrated circuit (ASIC), a programmable logic device (PLD) or a combination thereof. The above PLD can be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a generic array logic (GAL) or any combination thereof.

[0120] The memory 602 is used to store program codes, etc. The memory 602 may include a volatile memory (VM), such as a random access memory (RAM); the memory 602 may also include a non-volatile memory (NVM), such as a read-only memory (ROM), a flash memory, a hard disk drive (HDD) or a solid-state drive (SSD); the memory 602 may also include a combination of the above-mentioned types of memories.

[0121] The communication interface 603 is used to transmit data.

[0122] The processor 601 may call the program code to perform the following operations:

[0123] Predicting charging demand information of a target vehicle at a target time point at a current time point to obtain predicted charging demand information of the target vehicle, wherein the target vehicle is a vehicle currently being charged, and the target time point is a future time point after the current time point;

[0124] Before the target time point arrives, the charging module is switched on and off according to the predicted charging demand information.

[0125] An embodiment of the present application further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, wherein the computer program includes program instructions, and when the program instructions are executed by a computer, the computer executes the method described in the above embodiment.

[0126] A person skilled in the art can understand that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program, and the program can be stored in a computer-readable storage medium, and when the program is executed, it can include the processes of the embodiments of the above-mentioned methods. The storage medium can be a disk, an optical disk, a read-only memory (ROM) or a random access memory (RAM), etc.

[0127] The above disclosure is only the preferred embodiment of the present application, which certainly cannot be used to limit the scope of rights of the present application. Therefore, equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A charging module switching method, characterized in that: include: Predicting charging demand information of a target vehicle at a target time point at a current time point to obtain predicted charging demand information of the target vehicle, wherein the target vehicle is a vehicle currently being charged, and the target time point is a future time point after the current time point; Before the target time point arrives, the charging module is switched on and off according to the predicted charging demand information.

2. The method according to claim 1, characterized in that The step of predicting the charging demand information of the target vehicle at the target time point at the current time point to obtain the predicted charging demand information of the target vehicle includes: Predicting a charging curve of the target vehicle according to the vehicle information of the target vehicle at a current time point to obtain a target charging curve, wherein the target charging curve is used to reflect how the charging demand of the target vehicle changes over time; The charging demand information of the target vehicle at the target time point is determined based on the target charging curve to obtain the predicted charging demand information.

3. The method according to claim 2, characterized in that The method further comprises: When the target time point is reached, determining the charging requirement information of the target vehicle at the target time point, and obtaining the actual charging requirement information of the target vehicle; determining a demand information difference between the actual charging demand information and the predicted charging demand information to obtain a first demand information difference; If the first demand information difference is greater than a first preset threshold, the target charging curve is updated based on the actual charging demand information.

4. The method according to claim 1, characterized in that: Before the target time point arrives, before the charging module is switched on and off according to the predicted charging demand information, the method further includes: Determining whether the predicted charging demand information is the same as the current charging demand information, where the current charging demand information is the charging demand information of the target vehicle at the current time point; If the predicted charging demand information is different from the current charging demand information, the step of switching the charging module according to the predicted charging demand information before the target time point arrives is performed.

5. The method according to claim 1, characterized in that Before the target time point arrives, switching the charging module according to the predicted charging demand information includes: Determine the duration between the current time point and the target time point to obtain the target duration; If the target duration is less than or equal to the required switching duration, switching the charging module according to the predicted charging demand information at the current time point; If the target duration is greater than the time required for switching, the charging module is switched on and off at a delayed time point after the current time point according to the predicted charging demand information, and the duration between the delayed time point and the current time point is equal to the difference between the target duration and the time required for switching on and off.

6. The method according to any one of claims 1 to 5, characterized in that: The method further comprises: When the target time point is reached, determining the charging requirement information of the target vehicle at the target time point, and obtaining the actual charging requirement information of the target vehicle; determining a demand information difference between the actual charging demand information and the predicted charging demand information to obtain a first demand information difference; If the first demand information difference is greater than a second preset threshold, the charging module is switched on and off according to the first demand information difference.

7. The method according to any one of claims 1 to 5, characterized in that: The switching of charging modules according to the predicted charging demand information includes: Determine a demand information difference between the predicted charging demand information and the current charging demand information to obtain a second demand information difference, wherein the current charging demand information is the charging demand information of the target vehicle at a current time point; If the predicted charging demand information is greater than the current charging demand information, an idle charging module matching the second demand information difference is put into the target vehicle; If the predicted charging demand information is less than the current charging demand information, an allocated charging module that matches the second demand information difference is cut out from the charging modules allocated to the target vehicle.

8. A charging module switching device, characterized in that: include: A charging demand prediction module is used to predict the charging demand information of a target vehicle at a target time point at a current time point to obtain the predicted charging demand information of the target vehicle, wherein the target vehicle is a vehicle currently being charged, and the target time point is a future time point after the current time point; The charging switching module is used to switch the charging module according to the predicted charging demand information before the target time point arrives.

9. A computer device, characterized in that: The method comprises a memory, a processor and a communication interface, wherein the memory and the communication interface are connected to the processor, the communication interface is used to transmit data, and the processor is used to execute one or more computer programs stored in the memory. When the processor executes the one or more computer programs, the computer device implements the method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, wherein the computer program includes program instructions, and when the program instructions are executed by a processor, the processor is caused to perform the method according to any one of claims 1 to 7.

Images