Charging duration determination method and device, equipment, medium and vehicle

Abstract

The invention discloses a charging duration determination method and device, equipment, a medium and a vehicle, and belongs to the technical field of batteries. The method comprises the steps that a first state parameter of a battery of a target vehicle is obtained, the first state parameter is obtained under the condition that the battery is not charged, and the first state parameter comprises a preset charge state; determining a first charging duration corresponding to the first state parameter according to a mapping relation between the state parameter and the charging duration; and determining the first charging duration as the charging duration required for charging the battery to the preset charge state. By adopting the charging duration determination method and device, the equipment, the medium and the vehicle provided by the invention, under the condition that the battery is not charged, the charging duration required for charging the battery to the preset charge state is determined.

Description

Technical Field

[0001] The present application belongs to the field of battery technology, and in particular relates to a charging time determination method, device, equipment, medium and vehicle. Background Art

[0002] With the popularity of electric vehicles, users are paying more and more attention to the experience of vehicle charging. Users usually hope that the vehicle can be charged to the preset state of charge (SOC) on time to avoid delaying the journey. This requires determining the charging time required for the battery to charge to the preset SOC, and then determining the time to start charging the battery based on the charging time and the time when the user wants to complete charging.

[0003] In the prior art, it is usually necessary to charge the battery for a period of time to generate a charging voltage and a charging current, and then calculate the charging time required for the battery based on the charging voltage and the charging current.

[0004] However, in some cases, it may be necessary to determine the charging time required for the battery before charging the battery begins. For example, when a user needs to schedule charging, it is necessary to determine the charging time required for the battery before charging the battery begins, so as to determine when to start charging the battery based on the charging time required for the battery and the time when the user wants to complete charging, so as to accurately schedule the time to start charging the battery. However, in the prior art, it is impossible to determine the charging time required for charging the battery to a preset SOC without charging the battery. Summary of the invention

[0005] The embodiments of the present application provide a charging time determination method, device, equipment, medium and vehicle, which can at least solve the problem in the prior art that it is impossible to determine the charging time required for a battery to be charged to a preset SOC without charging the battery.

[0006] In a first aspect, an embodiment of the present application provides a method for determining a charging time, the method comprising:

[0007] Acquire a first state parameter of a battery of a target vehicle, wherein the first state parameter is acquired without charging the battery, and the first state parameter includes a preset SOC;

[0008] Determine a first charging duration corresponding to the first state parameter according to a mapping relationship between the state parameter and the charging duration;

[0009] The first charging time is determined as the charging time required to charge the battery to a preset SOC.

[0010] In a second aspect, an embodiment of the present application provides a device for determining a charging duration, the device comprising:

[0011] A first acquisition module, used for acquiring a first state parameter of a battery of a target vehicle, wherein the first state parameter is acquired without charging the battery, and the first state parameter includes a preset SOC;

[0012] A first determining module, configured to determine a first charging duration corresponding to a first state parameter according to a mapping relationship between the state parameter and the charging duration;

[0013] The second determining module is used to determine the first charging time as the charging time required for charging the battery to a preset SOC.

[0014] In a third aspect, an embodiment of the present application provides an electronic device, the device comprising: a processor and a memory storing computer program instructions;

[0015] When the processor executes the computer program instructions, the method for determining the charging duration as shown in any one of the embodiments of the first aspect is implemented.

[0016] In a fourth aspect, an embodiment of the present application provides a computer storage medium having computer program instructions stored thereon, and when the computer program instructions are executed by a processor, the method for determining the charging time shown in any one of the embodiments of the first aspect is implemented.

[0017] In a fifth aspect, an embodiment of the present application further provides a vehicle, the vehicle comprising at least one of the following:

[0018] The charging duration determination device as described in the second aspect;

[0019] The electronic device as described in the third aspect;

[0020] The computer storage medium as described in the fourth aspect.

[0021] The charging duration determination method, device, equipment, medium and vehicle of the embodiment of the present application can first obtain the first state parameter of the battery of the target vehicle. Since the first state parameter is obtained without charging the battery, the first state parameter can be obtained without charging the battery. Then, the first charging duration corresponding to the first state parameter can be determined according to the mapping relationship between the state parameter and the charging duration, and the first charging duration is determined as the charging duration required for the battery to be charged to the preset SOC. In this way, the charging duration required for the battery to be charged to the preset SOC can be determined without charging the battery.

[0022] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solution of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0024] Figure 1 This is one of the flow charts of a method for determining charging time provided by an embodiment of the present application;

[0025] Figure 2 This is a second flowchart of a method for determining charging time provided by an embodiment of the present application;

[0026] Figure 3 It is a structural schematic diagram of a charging time determination device provided by an embodiment of the present application;

[0027] Figure 4 It is a structural schematic diagram of an electronic device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0028] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the scheme of the present application will be further described below. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present application, but the present application may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only part of the embodiments of the present application, rather than all of the embodiments.

[0030] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprises" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0031] An embodiment of the present application provides a method for determining charging time. The following is a detailed introduction to a method for determining charging time provided by an embodiment of the present application.

[0032] Figure 1 A flow chart of a charging time determination method provided by an embodiment of the present application is shown. It should be noted that the execution subject of the charging time determination method can be a charging time determination device. It should be noted that the above execution subject does not constitute a limitation on the present application.

[0033] like Figure 1 As shown, the charging time determination method may include the following steps:

[0034] S110, obtaining a first state parameter of a battery of a target vehicle;

[0035] S120, determining a first charging duration corresponding to the first state parameter according to a mapping relationship between the state parameter and the charging duration;

[0036] S130: Determine the first charging time as the charging time required for charging the battery to a preset SOC.

[0037] Thus, firstly, the first state parameter of the battery of the target vehicle can be obtained. Since the first state parameter is obtained without charging the battery, the first state parameter can be obtained without charging the battery. Then, according to the mapping relationship between the state parameter and the charging time, the first charging time corresponding to the first state parameter can be determined, and the first charging time is determined as the charging time required for the battery to be charged to the preset SOC. In this way, the charging time required for the battery to be charged to the preset SOC can be determined without charging the battery.

[0038] In S110, the first state parameter may be obtained without charging the battery, and the first state parameter may include a preset SOC. All parameters included in the first state parameter may be obtained without charging the battery.

[0039] The preset SOC may be the SOC that the battery needs to reach through charging. For example, the preset SOC may be input by a user, or may be a default setting of the charging duration determination device, such as 100%.

[0040] In S120, a mapping relationship between a state parameter and a charging duration may be preset. After the first state parameter is acquired, a first charging duration corresponding to the first state parameter may be determined according to the mapping relationship between the state parameter and the charging duration.

[0041] Exemplarily, the mapping relationship may include but is not limited to a formula, a curve or a table.

[0042] In some implementations, in order to more accurately determine the first charging duration, as Figure 2 As shown, S110 may include:

[0043] S111, obtaining a preset SOC, a current SOC, a state of health (SOH), a rated energy, and a battery charging power of the battery without charging the battery;

[0044] S120 may include:

[0045] S121, calculating the difference between the preset SOC and the current SOC to obtain the SOC to be replenished;

[0046] S122, calculating the product of the SOC to be replenished, the SOH and the rated energy to obtain a first value;

[0047] S123, calculating the quotient of the first value and the battery charging power to obtain a first charging duration.

[0048] Here, the preset SOC may be the actual preset SOC of the battery, and the current SOC may be the actual current SOC of the battery.

[0049] Specifically, the real current SOC, SOH, battery charging power, rated energy and real preset SOC of the battery can be obtained without charging the battery. The rated energy can be calibration data of the battery.

[0050] Then, the first charging duration can be calculated based on the following formula:

[0051]

[0052] In this way, the first charging time required for the battery can be calculated more accurately through the above process.

[0053] In some implementations, in order to more accurately determine the battery charging power, obtaining the battery charging power without charging the battery may include:

[0054] When the battery is not charged, the maximum allowable charging power of the charging pile and the power consumption of the direct current converter (DCDC) corresponding to the battery are obtained;

[0055] Calculate the difference between the maximum allowable charging power of the charging pile and the DCDC power consumption to get the battery charging power.

[0056] Here, the charging pile can be a charging pile for charging the battery of the target vehicle. Different charging piles have different configurations, so the maximum allowable charging power of different charging piles is different. The DCDC power consumption of different models of vehicles is also different, and the DCDC power consumption of the target vehicle can be determined based on the actual vehicle.

[0057] Exemplarily, the maximum allowable charging power of the charging pile can be determined based on user input. For example, the user can directly input the maximum allowable charging power of the charging pile, or select a certain charging pile. The charging time determination device then determines the maximum allowable charging power of the charging pile selected by the user based on the maximum allowable charging powers corresponding to the charging pile selected by the user and multiple pre-stored charging piles.

[0058] Specifically, since DCDC consumes part of the power, in order to obtain a more accurate battery charging power, the battery charging power may be determined by combining the maximum allowable charging power of the charging pile and the DCDC consumption power.

[0059] For example, the battery charging power can be calculated by the following formula:

[0060] Battery charging power = maximum allowable charging power of the charging pile - DCDC power consumption.

[0061] In this way, by determining the battery charging power based on the maximum allowable charging power of the charging pile and the DCDC power consumption, the influence of the DCDC on the battery charging power is taken into account, and a more accurate battery charging power can be obtained.

[0062] In some embodiments, sometimes the maximum allowable charging power of the charging pile may not be obtained. In order to avoid the inability to determine the charging time required for the battery due to the inability to obtain the maximum allowable charging power of the charging pile, obtaining the maximum allowable charging power of the charging pile without charging the battery may include:

[0063] When the charging gun is inserted and the battery is not charged, obtain the maximum allowable power of the charger of the target vehicle;

[0064] The maximum allowable power of the charger is determined as the maximum allowable charging power of the charging pile.

[0065] Here, the charging gun can be inserted but the battery is not charged. At this time, the maximum allowable power of the charger of the target vehicle can be obtained, and then the maximum allowable power of the charger can be used as the maximum allowable charging power of the charging pile, so that subsequent calculations can be carried out smoothly.

[0066] In this way, by using the maximum allowable charging power of the charger as the maximum allowable charging power of the charging pile, when the maximum allowable charging power of the charging pile cannot be directly obtained, the maximum allowable charging power of the charger can be used instead of the maximum allowable charging power of the charging pile for subsequent calculations, thereby smoothly determining the charging time required for the battery.

[0067] Regarding S130 , after determining the first charging time, the first charging time may be determined as the charging time required for charging the battery to a preset SOC.

[0068] For example, if it is necessary to schedule charging for a battery, after determining the charging time required for charging the battery to a preset SOC, the time when the battery needs to start charging can be determined based on the time when the user wants to complete charging and the charging time required for charging the battery to the preset SOC, and the battery can be scheduled to start charging from that time. When the time when the battery needs to start charging is reached, the battery can be charged until the SOC of the battery reaches the preset SOC. In this way, the battery can be charged at one time, and the entire charging process is continuous, without the situation where the charging process is intermittent.

[0069] In some embodiments, the battery cannot be charged when the temperature is too low or too high. Therefore, when charging the battery, if the temperature of the battery is found to be too low or too high, the charging pile will be used to perform thermal management on the battery to raise or lower the temperature of the battery to a suitable temperature range before charging. Thermal management will take some time. Therefore, in order to more accurately determine the charging time required for the battery, after S123, the method may further include:

[0070] Acquire a first temperature of the battery;

[0071] Determining a first thermal management duration corresponding to the first temperature according to a mapping relationship between the temperature and the thermal management duration;

[0072] Calculating the sum of the first thermal management time and the first charging time to obtain a second charging time;

[0073] Based on this, S130 may include:

[0074] The second charging time is determined as the charging time required to charge the battery to a preset SOC.

[0075] Here, the first temperature may be the current temperature of the battery. The first thermal management duration may include the time required for the battery to heat up or cool down from the first temperature to a preset temperature, and may also include the time required to compensate for the energy consumption of the air conditioner when cooling or heating the cabin. The preset temperature may be a temperature at which the battery can be charged normally. The mapping relationship between temperature and thermal management duration may be obtained by statistically analyzing a large amount of sample data of temperature and thermal management duration. Based on the mapping relationship between the temperature and the thermal management duration and the current temperature of the battery, the thermal management duration currently required for the battery may be determined, that is, the first thermal management duration. The sum of the first charging duration and the first thermal management duration is then determined as the charging time required for the battery to be charged to the preset SOC.

[0076] Exemplarily, the second charging duration may be calculated by the following formula:

[0077] The second charging time=the first charging time+the first thermal management time.

[0078] In this way, by determining the sum of the first charging time and the first thermal management time as the charging time required for the battery to be charged to a preset SOC, the time required for thermal management of the battery before charging begins is taken into account, so the charging time required for the battery can be determined more accurately.

[0079] In some embodiments, in order to further improve the accuracy of determining the required charging time of the battery, after calculating the sum of the first thermal management time and the first charging time to obtain the second charging time, the method may further include:

[0080] Determining a first calculation accuracy corresponding to the first SOC parameter according to a mapping relationship between the SOC parameter of the battery and the calculation accuracy;

[0081] Calculate the sum of the first calculation accuracy and the second charging duration to obtain a third charging duration;

[0082] Based on this, determining the second charging time as the charging time required for charging the battery to the preset SOC may include:

[0083] The third charging time is determined as the charging time required to charge the battery to a preset SOC.

[0084] Here, the first SOC parameter may include the current SOC and the preset SOC. Since the lower the current SOC of the battery, the faster the charging efficiency; the higher the current SOC of the battery, the slower the charging efficiency, a calculation accuracy may be determined based on the current SOC and the preset SOC of the battery, and the second charging duration may be calibrated using the calculation accuracy, and the calibrated third charging duration may be used as the charging duration required for charging the battery to the preset SOC, thereby improving the accuracy of the required charging duration of the battery.

[0085] Specifically, the mapping relationship between the SOC parameter of the battery and the calculation accuracy may include but is not limited to a formula, a curve or a table.

[0086] Exemplarily, the first calculation accuracy may be calculated by the following formula:

[0087]

[0088] In some examples, the first calculation accuracy calculated based on certain current SOCs and preset SOCs may be as shown in Table 1.

[0089] Table 1-First calculation accuracy data statistics table

[0090] Preset SOC Current SOC The difference between the preset SOC and the current SOC First calculation accuracy 100 90 10 5.4 100 80 20 11.375 100 20 80 45.5 100 10 90 49 60 50 10 5 60 40 20 10.75 30 20 10 3.5 30 10 20 7

[0091] Then, the third charging time can be calculated by the following formula:

[0092] The third charging time=the first charging time+the first thermal management time+the first calculation accuracy.

[0093] In this way, by calibrating the second charging time based on the calculation accuracy determined by the current SOC and the preset SOC, and using the calibrated third charging time as the charging time required for charging the battery to the preset SOC, the accuracy of the charging time required for the battery can be improved.

[0094] The charging time determination method provided in the embodiment of the present application can calculate the charging time required for the battery by combining factors such as the maximum allowable charging power of the charging pile and the vehicle discharge situation when the battery is not charged. At the same time, the charging time required for the battery can be dynamically calibrated according to the change of the current SOC of the battery to obtain a more accurate charging time required for the battery.

[0095] Based on the same inventive concept, the embodiment of the present application further provides a device for determining charging duration. The method for determining charging duration provided in the embodiment of the present application can be executed by the device for determining charging duration. Figure 3 The charging time determination device provided in an embodiment of the present application is described in detail.

[0096] Figure 3 A schematic structural diagram of a charging duration determination device provided in one embodiment of the present application is shown.

[0097] like Figure 3 As shown, the charging time determination device may include:

[0098] A first acquisition module 301 is used to acquire a first state parameter of a battery of a target vehicle, wherein the first state parameter is acquired without charging the battery, and the first state parameter includes a preset SOC;

[0099] A first determining module 302, configured to determine a first charging duration corresponding to a first state parameter according to a mapping relationship between the state parameter and the charging duration;

[0100] The second determining module 303 is used to determine the first charging time as the charging time required for charging the battery to a preset SOC.

[0101] Thus, firstly, the first state parameter of the battery of the target vehicle can be obtained. Since the first state parameter is obtained without charging the battery, the first state parameter can be obtained without charging the battery. Then, according to the mapping relationship between the state parameter and the charging time, the first charging time corresponding to the first state parameter can be determined, and the first charging time is determined as the charging time required for the battery to be charged to the preset SOC. In this way, the charging time required for the battery to be charged to the preset SOC can be determined without charging the battery.

[0102] In some implementations, to more accurately determine the first charging duration, the first acquisition module 301 may include:

[0103] The acquisition submodule is used to obtain the preset SOC, current SOC, SOH, rated energy and battery charging power of the battery when the battery is not charged;

[0104] The first determining module 302 may include:

[0105] The first calculation submodule is used to calculate the difference between the preset SOC and the current SOC to obtain the SOC to be replenished;

[0106] A second calculation submodule is used to calculate the product of the SOC to be replenished, the SOH and the rated energy to obtain a first value;

[0107] The third calculation submodule is used to calculate the quotient of the first value and the battery charging power to obtain a first charging time.

[0108] In some implementations, in order to more accurately determine the battery charging power, the acquisition submodule may include:

[0109] An acquisition unit, used to acquire the maximum allowable charging power of the charging pile and the DCDC consumption power corresponding to the battery when the battery is not charged;

[0110] The calculation unit is used to calculate the difference between the maximum allowable charging power of the charging pile and the DCDC consumption power to obtain the battery charging power.

[0111] In some embodiments, sometimes the maximum allowable charging power of the charging pile may not be obtained. In order to avoid the inability to determine the charging time required for the battery due to the inability to obtain the maximum allowable charging power of the charging pile, the obtaining unit may include:

[0112] An acquisition subunit, used to acquire the maximum allowable power of the charger of the target vehicle when the charging gun is inserted and the battery is not charged;

[0113] The determination subunit is used to determine the maximum allowable power of the charger as the maximum allowable charging power of the charging pile.

[0114] In some embodiments, the battery cannot be charged when the temperature is too low or too high. Therefore, when charging the battery, if the temperature of the battery is found to be too low or too high, the charging pile will be used to perform thermal management on the battery to raise or lower the temperature of the battery to a suitable temperature range before charging. Thermal management will take some time. Therefore, in order to more accurately determine the charging time required for the battery, the device may further include:

[0115] A second acquisition module is used to obtain a first temperature of the battery after calculating a quotient of the first value and the battery charging power to obtain a first charging time;

[0116] A third determination module, configured to determine a first thermal management duration corresponding to the first temperature according to a mapping relationship between the temperature and the thermal management duration;

[0117] A first calculation module, used to calculate the sum of the first thermal management duration and the first charging duration to obtain a second charging duration;

[0118] The second determining module 303 may include:

[0119] The determination submodule is used to determine the second charging time as the charging time required for charging the battery to a preset SOC.

[0120] In some embodiments, in order to further improve the accuracy of determining the required charging time of the battery, the device may further include:

[0121] a fourth determination module, configured to determine, after calculating the sum of the first thermal management duration and the first charging duration to obtain the second charging duration, a first calculation accuracy corresponding to the first SOC parameter according to a mapping relationship between the SOC parameter of the battery and the calculation accuracy, wherein the first SOC parameter includes a current SOC and a preset SOC;

[0122] A second calculation module is used to calculate the sum of the first calculation accuracy and the second charging duration to obtain a third charging duration;

[0123] Determine the submodules, which may include:

[0124] The determining unit is used to determine the third charging time as the charging time required for charging the battery to a preset SOC.

[0125] Figure 4 A schematic structural diagram of an electronic device provided by an embodiment of the present application is shown.

[0126] like Figure 4 As shown, the electronic device 4 is a structural diagram of an exemplary hardware architecture of an electronic device that can implement the charging time determination method and charging time determination device in the embodiment of the present application. The electronic device can refer to the electronic device in the embodiment of the present application.

[0127] The electronic device 4 may include a processor 401 and a memory 402 storing computer program instructions.

[0128] Specifically, the processor 401 may include a central processing unit (CPU), or an application specific integrated circuit (ASIC), or may be configured to implement one or more integrated circuits of the embodiments of the present application.

[0129] The memory 402 may include a large capacity memory for data or instructions. By way of example and not limitation, the memory 402 may include a hard disk drive (HDD), a floppy disk drive, a flash memory, an optical disk, a magneto-optical disk, a tape, or a universal serial bus (USB) drive, or a combination of two or more of these. Where appropriate, the memory 402 may include a removable or non-removable (or fixed) medium. Where appropriate, the memory 402 may be inside or outside the integrated gateway disaster recovery device. In a specific embodiment, the memory 402 is a non-volatile solid-state memory. In a specific embodiment, the memory 402 may include a read-only memory (ROM), a random access memory (RAM), a disk storage medium device, an optical storage medium device, a flash memory device, an electrical, optical, or other physical / tangible memory storage device. Therefore, typically, the memory 402 includes one or more tangible (non-transitory) computer-readable storage media (e.g., a memory device) encoded with software including computer executable instructions, and when the software is executed (e.g., by one or more processors), it is operable to perform the operations described with reference to the method according to one aspect of the present application.

[0130] The processor 401 implements any one of the charging duration determination methods in the above embodiments by reading and executing computer program instructions stored in the memory 402 .

[0131] In one example, the electronic device may further include a communication interface 403 and a bus 404. Figure 4 As shown, the processor 401, the memory 402, and the communication interface 403 are connected via a bus 404 and communicate with each other.

[0132] The communication interface 403 is mainly used to implement communication between various modules, devices, units and / or equipment in the embodiments of the present application.

[0133] Bus 404 includes hardware, software or both, and the parts of electronic equipment are coupled to each other.For example, but not limitation, bus may include accelerated graphics port (AGP) or other graphics bus, enhanced industrial standard architecture (EISA) bus, front side bus (FSB), hypertransport (HT) interconnection, industrial standard architecture (ISA) bus, infinite bandwidth interconnection, low pin count (LPC) bus, memory bus, micro channel architecture (MCA) bus, peripheral component interconnection (PCI) bus, PCI-Express (PCI-X) bus, serial advanced technology attachment (SATA) bus, video electronics standard association local (VLB) bus or other suitable bus or two or more of these combinations. In appropriate cases, bus 504 may include one or more buses. Although the present application embodiment describes and shows a specific bus, the application considers any suitable bus or interconnection.

[0134] The electronic device can execute the charging time determination method in the embodiment of the present application, thereby realizing the combination Figures 1 to 3 The present invention describes a method and device for determining charging time.

[0135] In addition, in combination with the charging time determination method in the above embodiment, the embodiment of the present application can provide a computer storage medium for implementation. The computer storage medium stores computer program instructions; when the computer program instructions are executed by the processor, any one of the charging time determination methods in the above embodiment is implemented.

[0136] In addition, in combination with the charging time determination method in the above embodiment, the embodiment of the present invention can provide a vehicle for implementation. The vehicle includes at least one of the charging time determination device in the above embodiment, an electronic device, and a computer-readable storage medium.

[0137] It should be clear that the present application is not limited to the specific configuration and processing described above and shown in the figures. For the sake of simplicity, a detailed description of the known method is omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of the present application is not limited to the specific steps described and shown, and those skilled in the art can make various changes, modifications and additions, or change the order between the steps after understanding the spirit of the present application.

[0138] The functional blocks shown in the above-described block diagram can be implemented as hardware, software, firmware or a combination thereof. When implemented in hardware, it can be, for example, an electronic circuit, an application specific integrated circuit (ASIC), appropriate firmware, a plug-in, a function card, etc. When implemented in software, the elements of the present application are programs or code segments that are used to perform the required tasks. The program or code segment can be stored in a machine-readable medium, or transmitted on a transmission medium or a communication link by a data signal carried in a carrier wave. "Machine-readable medium" can include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, optical fiber media, radio frequency (RF) links, etc. The code segment can be downloaded via a computer network such as the Internet, an intranet, etc.

[0139] It should also be noted that the exemplary embodiments mentioned in this application describe some methods or systems based on a series of steps or devices. However, this application is not limited to the order of the above steps, that is, the steps can be performed in the order mentioned in the embodiment, or in a different order from the embodiment, or several steps can be performed simultaneously.

[0140] The above reference is according to the method of the embodiment of the present application, the flow chart of the device (system) and the computer program product and / or the block diagram described various aspects of the present application.It should be understood that each square box in the flow chart and / or the block diagram and the combination of each square box in the flow chart and / or the block diagram can be realized by computer program instructions.These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer or other programmable data processing device to produce a machine so that these instructions executed by the processor of the computer or other programmable data processing device enable the realization of the function / action specified in one or more square boxes of the flow chart and / or the block diagram.Such a processor can be but is not limited to a general-purpose processor, a special-purpose processor, a special application processor or a field programmable logic circuit.It can also be understood that each square box in the block diagram and / or the flow chart and the combination of the square boxes in the block diagram and / or the flow chart can also be realized by the dedicated hardware that performs the specified function or action, or can be realized by the combination of dedicated hardware and computer instructions.

[0141] The above is only a specific implementation of the present application. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the protection scope of the present application is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in this application, and these modifications or replacements should be included in the protection scope of this application.

Claims

1. A method for determining charging time, characterized in that: The method comprises: Acquire a first state parameter of a battery of a target vehicle, wherein the first state parameter is acquired without charging the battery, and the first state parameter includes a preset state of charge; Determine a first charging duration corresponding to the first state parameter according to a mapping relationship between the state parameter and the charging duration; The first charging time is determined as the charging time required for charging the battery to the preset state of charge.

2. The method according to claim 1, characterized in that The step of obtaining a first state parameter of a battery of a target vehicle includes: Without charging the battery, obtaining a preset state of charge, a current state of charge, a health state, a rated energy, and a battery charging power of the battery; The determining, according to a mapping relationship between the state parameter and the charging duration, a first charging duration corresponding to the first state parameter includes: Calculating the difference between the preset state of charge and the current state of charge to obtain the state of charge to be replenished; Calculating the product of the state of charge to be replenished, the health state, and the rated energy to obtain a first value; The quotient of the first value and the battery charging power is calculated to obtain the first charging duration.

3. The method according to claim 2, characterized in that When the battery is not charged, obtaining the battery charging power includes: When the battery is not charged, obtaining the maximum allowable charging power of the charging pile and the power consumption of the DC converter corresponding to the battery; The difference between the maximum allowable charging power of the charging pile and the power consumed by the DC converter is calculated to obtain the battery charging power.

4. The method according to claim 3, characterized in that When the battery is not charged, obtaining the maximum allowable charging power of the charging pile includes: When the charging gun is inserted and the battery is not charged, obtaining the maximum allowable power of the charger of the target vehicle; The maximum allowable power of the charger is determined as the maximum allowable charging power of the charging pile.

5. The method according to claim 2, characterized in that After calculating the quotient of the first value and the battery charging power to obtain the first charging duration, the method further includes: acquiring a first temperature of the battery; Determining a first thermal management duration corresponding to the first temperature according to a mapping relationship between temperature and thermal management duration; Calculating the sum of the first thermal management duration and the first charging duration to obtain a second charging duration; The step of determining the first charging time as the charging time required for charging the battery to the preset state of charge includes: The second charging time is determined as the charging time required for charging the battery to the preset state of charge.

6. The method according to claim 5, characterized in that After calculating the sum of the first thermal management duration and the first charging duration to obtain a second charging duration, the method further includes: Determining, according to a mapping relationship between the state of charge parameter of the battery and the calculation accuracy, a first calculation accuracy corresponding to the first state of charge parameter, wherein the first state of charge parameter includes the current state of charge and the preset state of charge; Calculating the sum of the first calculation accuracy and the second charging duration to obtain a third charging duration; The step of determining the second charging time as the charging time required for charging the battery to the preset state of charge includes: The third charging time is determined as the charging time required for charging the battery to the preset state of charge.

7. A device for determining charging time, characterized in that: The device comprises: A first acquisition module, used for acquiring a first state parameter of a battery of a target vehicle, wherein the first state parameter is acquired without charging the battery, and the first state parameter includes a preset state of charge; A first determining module, configured to determine a first charging duration corresponding to the first state parameter according to a mapping relationship between the state parameter and the charging duration; The second determining module is used to determine the first charging time as the charging time required for charging the battery to the preset state of charge.

8. An electronic device, characterized in that: The device comprises: a processor and a memory storing computer program instructions; When the processor executes the computer program instructions, the method for determining the charging duration as described in any one of claims 1-6 is implemented.

9. A computer storage medium, characterized in that The computer storage medium stores computer program instructions, and when the computer program instructions are executed by the processor, the method for determining the charging time according to any one of claims 1 to 6 is implemented.

10. A vehicle, characterized in that: The vehicle includes at least one of the following: The charging time determination device according to any one of claim 7; The electronic device as claimed in claim 8; The computer storage medium of claim 9.

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