Charging control method and device, storage medium and computer program product

Abstract

The invention discloses a charging control method and device, a storage medium and a computer program product, and relates to the technical field of new energy vehicles, and the method comprises the steps: responding to a heat preservation charging instruction for a target vehicle, and obtaining a next vehicle use moment set by a user, and vehicle charging time consumed for charging the target vehicle to a target electric quantity; according to the vehicle charging time consumption and the vehicle idle time length from the current moment to the next vehicle using moment, calculating to obtain a charging waiting time length; and after the charging waiting duration, charging operation is carried out, charging is stopped after the target vehicle is charged to the target electric quantity, and heat of a power battery of the target vehicle is preserved to the next vehicle using moment by means of heat generated in the charging process. The technical problem that in a low-temperature environment, a new energy vehicle needs to consume extra electric energy to preheat a battery, and the endurance of the vehicle is affected is solved.

Description

Technical Field

[0001] The present application relates to the field of new energy vehicle technology, and in particular to a charging control method, device, storage medium and computer program product. Background Art

[0002] In the field of new energy vehicles, the performance of power batteries is directly related to the vehicle's mileage and energy efficiency. Especially in low temperature environments, the performance of power batteries will be significantly affected.

[0003] In order to solve the impact of low temperature on battery performance, when the user needs to use the vehicle, the vehicle's thermal management system will detect the battery temperature. When the battery temperature is lower than the preset temperature threshold, the heating mechanism will be triggered to preheat the power battery by consuming the charged power in the power battery. However, although this process can improve the working state of the power battery, it will also consume additional power from the charged power battery, affecting the vehicle's endurance.

[0004] The above contents are only used to assist in understanding the technical solution of the present application and do not constitute an admission that the above contents are prior art. Summary of the invention

[0005] The main purpose of this application is to provide a charging control method, device, storage medium and computer program product, aiming to solve the technical problem that new energy vehicles need to consume additional electrical energy to preheat the battery in a low temperature environment, which affects the vehicle's endurance.

[0006] To achieve the above objectives, the present application proposes a charging control method, which includes: In response to a warm-up charging instruction for a target vehicle, obtaining a next vehicle use time set by a user and a vehicle charging time required for charging the target vehicle to a target power level; The waiting time for charging is calculated based on the time taken to charge the vehicle and the idle time of the vehicle between the current time and the next time to use the vehicle; After the waiting charging time has elapsed, the charging operation is performed, and the charging is stopped after the target vehicle is charged to the target power, so as to keep the power battery of the target vehicle warm until the next time of use of the vehicle by means of the heat generated during the charging process.

[0007] In one embodiment, the step of calculating the waiting charging time according to the vehicle charging time and the vehicle idle time between the current time and the next vehicle use time includes: Get the scheduled redundancy time; The difference between the idle time of the vehicle and the time taken for charging the vehicle is used as the initial waiting time; The initial waiting time is corrected according to the predetermined redundant time to obtain the waiting charging time.

[0008] In one embodiment, the step of obtaining the vehicle charging time required for charging the target vehicle to a target power level includes: Obtaining the remaining power and charging parameters of the target vehicle; Based on the charging parameters, the vehicle charging time required for charging the target vehicle from the remaining power to the target power is calculated.

[0009] In one embodiment, the step of obtaining the remaining power of the target vehicle includes: Read the current state of charge of the target vehicle to obtain the current power; Calculating idle power consumption during the idle time of the vehicle; The time difference between the current power consumption and the idle power consumption is used as the remaining power of the target vehicle.

[0010] In one embodiment, before the step of responding to the warm-keeping charging instruction for the target vehicle, the method includes: Obtaining the current ambient temperature of the environment in which the target vehicle is located; After the current ambient temperature is less than a predetermined low temperature threshold, the step of responding to a warm-keeping charging instruction for a target vehicle is executed.

[0011] In one embodiment, before the step of performing a charging operation after the waiting charging time has elapsed, the charging control method further includes: After the target vehicle is powered off, determining whether the current power level of the target vehicle is less than a predetermined low power threshold; If the current power level is less than a predetermined low power threshold, a charging operation is performed, and charging is stopped after the target vehicle is charged to a predetermined first power level, and the steps are performed: after the waiting charging time has elapsed, a charging operation is performed; If the current power level is not less than a predetermined low power threshold, the following step is performed: after the waiting charging time has elapsed, a charging operation is performed.

[0012] In one embodiment, the charging control method further includes: After the vehicle idle time is longer than a predetermined long time threshold, determining whether the current power level is greater than a predetermined high power level threshold; If the current power level is greater than a predetermined high power level threshold, the steps are performed: after the waiting charging time has elapsed, a charging operation is performed; If the current power level is not greater than a predetermined high power level threshold, a charging operation is performed, and charging is stopped after the target vehicle is charged to a predetermined second power level, and the step of performing a charging operation is performed after the waiting charging time has elapsed.

[0013] In addition, to achieve the above-mentioned purpose, the present application also proposes a charging control device, which includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program is configured to implement the steps of the charging control method described above.

[0014] In addition, to achieve the above-mentioned purpose, the present application also proposes a storage medium, which is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, the steps of the charging control method described above are implemented.

[0015] In addition, to achieve the above-mentioned purpose, the present application also provides a computer program product, which includes a computer program, and when the computer program is executed by a processor, the steps of the charging control method described above are implemented.

[0016] One or more technical solutions proposed in this application have at least the following technical effects: This application obtains the next time of use of the vehicle set by the user and the vehicle charging time required to charge the target vehicle to the target power by responding to the insulation charging instruction for the target vehicle. According to the vehicle charging time and the idle time of the vehicle between the current time and the next time of use of the vehicle, the waiting charging time is calculated. Thus, after the waiting charging time, the charging operation is performed, and the charging is stopped after the target vehicle is charged to the target power, so that the power battery of the target vehicle can be kept warm until the next time of use of the vehicle with the help of the heat generated during the charging process. This application selects a suitable charging start time (i.e., after the waiting charging time) based on the next time of use of the vehicle set by the user and the vehicle charging time required to charge to the target power, so that the heat generated during the charging process is used to keep the power battery warm until the next time of use of the vehicle, so that the battery preheating can be realized when the user uses the vehicle next time in a low temperature environment without consuming additional electric energy, thereby ensuring the vehicle's endurance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 A schematic diagram of a flow chart provided for the first embodiment of the charging control method of the present application; Figure 2 A schematic diagram of a flow chart provided for the second embodiment of the charging control method of the present application; Figure 3 A schematic diagram of a flow chart provided for the third embodiment of the charging control method of the present application; Figure 4 This is a flowchart of an overall scenario of a feasible embodiment of the present application; Figure 5 This is a schematic diagram of the structure of the charging control device involved in the embodiment of the present application.

[0020] The purpose, features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0021] It should be understood that the specific embodiments described herein are only used to explain the technical solutions of the present application and are not used to limit the present application.

[0022] In order to better understand the technical solution of the present application, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0023] The main solution of the embodiment of the present application is: in response to a warm-keeping charging instruction for a target vehicle, obtaining the next vehicle-use time set by the user and the vehicle charging time required for the target vehicle to charge to a target power level; calculating the waiting charging time based on the vehicle charging time and the vehicle idle time between the current time and the next vehicle-use time; performing a charging operation after the waiting charging time has elapsed, and stopping charging after the target vehicle has been charged to the target power level, so as to keep the power battery warm until the next vehicle-use time with the help of the heat generated by the target vehicle during the charging process.

[0024] In this embodiment, for the convenience of description, the vehicle controller is used as the execution subject for explanation below.

[0025] In order to solve the impact of low temperature on battery performance, the existing technology uses a thermal management system to detect the battery temperature when the user needs to use the vehicle. When the battery temperature is lower than a predetermined temperature threshold, the heating mechanism is triggered to preheat the power battery by consuming the charged power in the power battery. However, although this process can improve the working state of the power battery, it will also consume additional power from the charged power battery, affecting the vehicle's endurance.

[0026] The present application provides a solution, which selects a suitable charging start time (i.e., after the waiting charging time) based on the next vehicle use time set by the user and the vehicle charging time required to charge to the target power, so that the heat generated during the charging process can be used to keep the power battery warm until the next vehicle use time, thereby achieving battery preheating when the user uses the vehicle next time in a low temperature environment without consuming additional electrical energy, thereby ensuring the vehicle's endurance.

[0027] Based on this, the present application embodiment provides a charging control method, referring to Figure 1 , Figure 1 This is a flow chart of the first embodiment of the charging control method of the present application.

[0028] In this embodiment, the charging control method includes steps S10 to S40: Step S10, in response to the warm-up charging instruction for the target vehicle, obtaining the next vehicle use time set by the user and the vehicle charging time required for charging the target vehicle to a target power; It should be noted that the execution subject of the embodiment of the present application is a charging control device, which may include but is not limited to the vehicle controller of the target vehicle, an independent controller for controlling charging behavior, and other on-board control devices. The target vehicle is a new energy vehicle with a power battery, such as a pure electric vehicle, a hybrid vehicle, etc.

[0029] In addition, it should be noted that the insulation charging instruction is a control instruction for instructing the vehicle power battery to be kept warm. The next vehicle use time is the time when the user sets the next use of the vehicle according to needs. The target power is the power value expected to be reached by the target vehicle after charging, such as 100%, 80%, etc. The target power can be a pre-set power value or a power value set by the user in real time according to needs.

[0030] In this embodiment, after receiving the insulation charging instruction issued by the user for the target vehicle, the next vehicle use time set by the user and the vehicle charging time required for the target vehicle to charge to the target power can be obtained in response to the insulation charging instruction for the target vehicle. The vehicle charging time can be calculated according to the charging parameters of the target vehicle (such as charging power, charging conversion rate, etc.), and the time required for the target vehicle to charge from the remaining power to the target power (i.e., the vehicle charging time). At the same time, after the target vehicle is powered off and connected to the charging gun, the target vehicle can be controlled to enter the power-off rest state in this embodiment, so as to perform the charging operation after the waiting charging time, and stop charging after the target vehicle is charged to the target power, so as to keep the power battery warm by means of the heat generated by the target vehicle during the charging process until the next vehicle use time.

[0031] In a feasible implementation manner, before the step of responding to the warm-keeping charging instruction for the target vehicle in step S10, steps S01 to S02 are included: Step S01, obtaining the current ambient temperature of the environment in which the target vehicle is located; Step S02, after the current ambient temperature is less than a predetermined low temperature threshold, execute the step of responding to a warm-keeping charging instruction for a target vehicle.

[0032] It should be noted that the predetermined low temperature threshold is a temperature threshold pre-set as a low temperature environment, such as 0°C, 5°C, etc.

[0033] After receiving a heat preservation charging instruction from the user for the target vehicle, this embodiment can obtain the current ambient temperature of the target vehicle's environment collected by the temperature sensor. It can then be determined whether the current ambient temperature is less than a predetermined low temperature threshold. If the current ambient temperature is not less than the predetermined low temperature threshold, it means that the current ambient temperature of the target vehicle's environment is high and there is no need to preheat the battery, then the response to the heat preservation charging instruction can be canceled. After the current ambient temperature is less than the predetermined low temperature threshold, execute the step of responding to the heat preservation charging instruction for the target vehicle.

[0034] Therefore, this embodiment determines whether the target vehicle needs to be charged thermally by judging the current ambient temperature of the environment in which the target vehicle is located. If the current ambient temperature is high, the thermal charging operation is canceled to avoid keeping the battery warm when the target vehicle is used next time, thereby increasing the heat dissipation pressure of the battery management system.

[0035] Step S20, calculating the waiting time for charging according to the charging time of the vehicle and the idle time of the vehicle between the current time and the next time of using the vehicle; After obtaining the next time to use the vehicle and the time it takes to charge the vehicle, this embodiment can calculate the idle time of the target vehicle that can be used for charging between the current time and the next time to use the vehicle. Then, the waiting time for charging can be calculated based on the time it takes to charge the vehicle and the idle time of the vehicle, so as to select a suitable time to start charging (i.e., after the waiting time for charging), so as to keep the heat generated by the charging process warm in the power battery until the next time to use the vehicle. Among them, the waiting time for charging is determined by the difference between the time it takes to charge the vehicle and the idle time of the vehicle. Exemplarily, the waiting time for charging can be the difference between the time it takes to charge the vehicle and the idle time of the vehicle. Of course, considering the requirements for redundant design, the waiting time for charging can be the time after the difference between the time it takes to charge the vehicle and the idle time of the vehicle is corrected by the predetermined redundant time. It can be understood that the waiting time for charging can be less than or equal to the difference between the time it takes to charge the vehicle and the idle time of the vehicle, so as to avoid the charging operation not being completed at the next time of use set by the user, affecting the user's use of the vehicle. Of course, the difference between the waiting charging time and the time difference must not be greater than the predetermined time difference (such as 30 minutes, 40 minutes) to avoid the next car use time being too long after charging is completed, causing the heat generated during the charging process to be completely dissipated.

[0036] In a feasible implementation, step S20 may include steps S21 to S2S3: Step S21, obtaining a predetermined redundancy time; Step S22, taking the difference between the idle time of the vehicle and the time taken for charging the vehicle as the initial waiting time; Step S23, correcting the initial waiting time according to the predetermined redundant time to obtain a waiting charging time.

[0037] It should be noted that the predetermined redundancy time is a time parameter pre-set as a redundancy amount, and the predetermined redundancy time can be a proportional value (such as 2%, 3%, 5%, etc.) or a time value (such as 8 minutes, 10 minutes, 15 minutes).

[0038] This embodiment can obtain a predetermined redundant time, and calculate the difference between the vehicle idle time and the vehicle charging time as the initial waiting time. Then, the initial waiting time is corrected according to the predetermined redundant time to obtain the waiting charging time. It can be understood that the waiting charging time can be less than or equal to the difference between the vehicle charging time and the vehicle idle time, so as to avoid the charging operation not being completed at the next car use time set by the user, affecting the user's use of the car. Exemplarily, taking the predetermined charging redundant time as T0 as an example, the waiting charging time T1 = △T-T2-T0; wherein T1 is the waiting charging time, T2 is the vehicle charging time, △T is the vehicle idle time between the current moment and the next car use moment, and T0 is the predetermined charging redundant time, such as 10 minutes.

[0039] In this embodiment, a certain amount of redundancy is designed to avoid that the charging operation is not completed before the next car use time set by the user, affecting the user's use of the car. Also, it is avoided that the time between the next car use time and the charging completion time is too long, resulting in the heat generated during the charging process being completely dissipated.

[0040] Step S30, after the waiting charging time has elapsed, the charging operation is performed, and the charging is stopped after the target vehicle is charged to the target power, so as to keep the power battery warm until the next use of the vehicle by means of the heat generated by the target vehicle during the charging process.

[0041] After the waiting charging time, the present embodiment can wake up the charging-related controllers required to perform the charging operation in the target vehicle through the vehicle network to perform the charging operation, wherein the charging-related controllers include BMS (Battery Management System), DC-DC (Direct Current-Direct Current), OBC (On-Board Charger), etc. Then, after the target vehicle is charged to the target power, the charging is stopped, the target vehicle is controlled to disconnect the current transmission with the charging device, and the target vehicle is controlled to enter a dormant state to avoid power consumption. Since the power battery of the target vehicle will generate a lot of heat during the entire charging process, the present embodiment can use the heat generated by the target vehicle during the charging process to keep the power battery warm until the next time the vehicle is used. Therefore, the battery preheating can be achieved when the user uses the vehicle next time in a low temperature environment without consuming additional electrical energy, thereby ensuring the vehicle's endurance.

[0042] The first embodiment of the present application provides a charging control method, which obtains the next vehicle use time set by the user and the vehicle charging time required for the target vehicle to charge to the target power by responding to the insulation charging instruction for the target vehicle. According to the vehicle charging time and the vehicle idle time between the current time and the next vehicle use time, the waiting charging time is calculated. Thus, after the waiting charging time, the charging operation is performed, and the charging is stopped after the target vehicle is charged to the target power, so that the power battery of the target vehicle can be kept warm until the next vehicle use time with the help of the heat generated during the charging process. This embodiment selects a suitable charging start time (i.e., after the waiting charging time) based on the next vehicle use time set by the user and the vehicle charging time required to charge to the target power, so that the heat generated during the charging process is used to keep the power battery warm until the next vehicle use time, so that the battery preheating of the user's next vehicle use in a low temperature environment can be achieved without consuming additional power, thereby ensuring the vehicle's endurance.

[0043] Based on the first embodiment of the present application, in the second embodiment of the present application, the same or similar contents as those in the above-mentioned embodiment 1 can be referred to the above introduction, and will not be repeated in the following. Figure 2 The step of obtaining the vehicle charging time required for charging the target vehicle to the target power in step S10 includes steps S11 to S12: Step S11, obtaining the remaining power and charging parameters of the target vehicle; Step S12: based on the charging parameters, calculating the vehicle charging time required for charging the target vehicle from the remaining power to the target power.

[0044] It should be noted that the charging parameters are relevant parameters used by the target vehicle for charging operations, such as charging power, charging efficiency, charging curve, etc. The charging parameters at least include charging power. The current power and the target power can be a state of charge or a specific capacity value.

[0045] After obtaining the remaining power and charging parameters of the target vehicle, this embodiment can calculate the capacity difference between the remaining power and the target power, and the capacity difference is usually in ampere-hours (Ah) or kilowatt-hours (kWh). For example, the total capacity of the power battery of the target vehicle is 50kWh, the remaining power is 40%, and the target power is 100%, then the capacity difference = (target power-remaining power) * total capacity of the power battery = 30kWh. Then the vehicle charging time required for the capacity difference can be calculated based on the charging parameters. Exemplarily, the charging power is 30kW·h, then the theoretical charging time is the quotient of the capacity difference and the charging power, that is, the theoretical charging time = capacity difference / charging power, and the above example is used: theoretical charging time = 30kW·h / 30kW=1h. This means that ideally, the vehicle charging time required to charge the target vehicle from the remaining power to the target power is within 1 hour. Of course, by considering other charging parameters such as charging efficiency and charging curve, the theoretical charging time can also be corrected according to the charging efficiency and charging curve to obtain a more accurate vehicle charging time.

[0046] In a feasible implementation manner, the step S11 of obtaining the remaining power of the target vehicle includes steps A10 to A30: Step A10, reading the current state of charge of the target vehicle to obtain the current power; Step A20, calculating the idle power consumption during the idle time of the vehicle; Step A30: taking the time difference between the current power consumption and the idle power consumption as the remaining power of the target vehicle.

[0047] Since the target vehicle will also have certain equipment running in the dormant state, consuming a certain amount of electricity. Therefore, this embodiment can read the state of charge (SOC, State of Charge) of the target vehicle at the current moment to obtain the current power. Exemplarily, this embodiment can use the state of charge at the current moment as the current power, or the capacity value obtained by multiplying the state of charge at the current moment and the total capacity of the power battery as the current power. Then, the operating power of the target vehicle in the dormant state can be obtained, and the idle power consumption during the idle time of the vehicle can be calculated according to the operating power and the idle time of the vehicle. Exemplarily, the idle power consumption can be the product of the operating power and the idle time of the vehicle. Or it can be a value obtained by correcting the product of the operating power and the idle time of the vehicle according to a predetermined correction coefficient. Then, the time difference between the current power and the idle power consumption can be used as the remaining power of the target vehicle. Therefore, this embodiment takes into account the power consumption during the idle time of the vehicle, calculates the remaining power of the target vehicle, and makes the waiting charging time calculated based on the remaining power more accurate.

[0048] The second embodiment of the present application provides a charging control method, by obtaining the remaining power and charging parameters of the target vehicle; based on the charging parameters, the vehicle charging time required for charging the target vehicle from the remaining power to the target power is calculated. Thus, the vehicle charging time required for charging the target vehicle from the remaining power to the target power is calculated.

[0049] Based on the first embodiment of the present application, in the third embodiment of the present application, the same or similar contents as those in the above-mentioned embodiment 1 can be referred to the above introduction, and will not be repeated in the following. Figure 3 In step S30, before the step of performing the charging operation after the waiting charging time has elapsed, the charging control method further includes steps B10 to B30: Step B10, after the target vehicle is powered off, determining whether the current power level of the target vehicle is less than a predetermined low power threshold; Step B20, if the current power is less than the predetermined low power threshold, then charging is performed, and charging is stopped after the target vehicle is charged to a predetermined first power, and the steps are executed: after the waiting charging time has elapsed, charging is performed; Step B20, if the current power level is not less than the predetermined low power threshold, then execute the step: after the waiting charging time has elapsed, perform a charging operation.

[0050] It should be noted that the predetermined first power level is a preset power value, such as 20%, 30%, 40%, etc. The predetermined first power level is less than the target power level and not less than the predetermined low power threshold. The predetermined low power threshold is a preset power value for judging low power, such as 20%, 15%, etc.

[0051] Because in the real car use scenario, there may be a scenario where the current power of the target vehicle is too low after the user last used the car. However, low temperature will reduce the chemical reaction speed of the power battery, resulting in a reduction in the available capacity of the battery, that is, the actual available power may be lower than expected. Therefore, in order to avoid the low power affecting the charging operation after the waiting time for charging. In this embodiment, after the target vehicle is powered off, it can be determined whether the current power of the target vehicle is less than a predetermined low power threshold. If the current power is less than the predetermined low power threshold, the charging-related controller required to perform the charging operation in the target vehicle can be awakened through the vehicle network to perform the charging operation. After the target vehicle is charged to a predetermined first power, the charging is stopped, the target vehicle is controlled to disconnect the current transmission with the charging device, and the target vehicle is controlled to enter a dormant state to avoid power consumption. Then the step is executed: after the waiting time for charging, the charging operation is performed. If the current power is not less than the predetermined low power threshold, the step is executed: after the waiting time for charging, the charging operation is performed. This embodiment first charges to a predetermined first power level, and then after the waiting charging time, performs a charging operation to charge to a target power level. This can achieve battery preheating for the next use of the vehicle in a low-temperature environment without consuming additional electrical energy, thereby reducing the risk of long-term low power in a low-temperature environment affecting the charging operation after the waiting charging time and the battery life of the target vehicle.

[0052] In a feasible implementation manner, the charging control method further includes steps C10 to C30: Step C10, after the vehicle idle time is greater than a predetermined long time threshold, determining whether the current power level is greater than a predetermined high power level threshold; Step C20, if the current power level is greater than a predetermined high power level threshold, then executing the step of: performing a charging operation after the waiting charging time has elapsed; Step C30, if the current power level is not greater than the predetermined high power level threshold, a charging operation is performed, and charging is stopped after the target vehicle is charged to a predetermined second power level, and the execution step: after the waiting charging time has passed, a charging operation is performed.

[0053] It should be noted that the predetermined long-time threshold is a pre-set duration for determining that the idle time is too long, such as 48h, 72h, etc. The predetermined second power is a pre-set power value, such as 50%, 60%, etc. The predetermined second power is less than the target power, but not less than the predetermined high power threshold. The predetermined high power threshold is a pre-set power value for determining that the power is too high, such as 50%, 60%, etc. The predetermined high power threshold is greater than the predetermined low power threshold.

[0054] In the real car use scenario, due to different car use habits of users, the interval between the end of the current car use and the next car use time may be too long. Although the target vehicle has low power consumption in the dormant state, the idleness of the vehicle for too long will also lead to a large overall power consumption, and being in a state of too low power for a long time is obviously not conducive to battery life and subsequent charging operations. Therefore, after the idle time of the vehicle is greater than the predetermined long-time threshold, it is determined whether the current power is greater than the predetermined high power threshold; if the current power is greater than the predetermined high power threshold, it means that the current power of the target vehicle is high and can support a longer period of idleness, then the step can be executed: after the waiting charging time, the charging operation is performed. If the current power is not greater than the predetermined high power threshold, it means that the current power of the target vehicle is not high enough, which may make it difficult to idle for a long time, then the charging-related controller required to perform the charging operation in the target vehicle can be awakened through the vehicle network to perform the charging operation, and the charging is stopped after the target vehicle is charged to the predetermined second power, the target vehicle is controlled to disconnect the current transmission with the charging device, and the target vehicle is controlled to enter a dormant state to avoid power consumption. Then, the step of: performing a charging operation after the waiting charging time has elapsed.

[0055] In this embodiment, when the idle time of the vehicle is greater than the predetermined long-time threshold and the current power is not greater than the predetermined high power threshold, it indicates that the current power retained by the target vehicle may be low due to the long idle time. Therefore, in this embodiment, by first charging to the predetermined second power, and then charging to the target power after the waiting charging time, the battery can be preheated when the user uses the vehicle next time in a low-temperature environment without consuming additional power, thereby avoiding the problem of continuous low power in the later stage of the waiting charging time when the vehicle is idle for a long time.

[0056] The third embodiment of the present application provides a charging control method. After the target vehicle is powered off, if the current power level of the target vehicle is lower than a predetermined low power threshold, it indicates that continued low power may affect the charging operation after the waiting time for charging, as well as the risk of the battery life of the target vehicle. Therefore, this embodiment first charges to a predetermined first power level, and then after the waiting time for charging, performs a charging operation to charge to the target power level. This can achieve battery preheating for the next use of the vehicle in a low temperature environment without consuming additional electricity, thereby reducing the risk of long-term low power in a low temperature environment affecting the charging operation after the waiting time for charging, as well as the battery life of the target vehicle.

[0057] It should be noted that the above examples are only used to understand the present application and do not constitute a limitation on the charging control method of the present application. More simple transformations based on this technical concept are all within the protection scope of the present application.

[0058] See also Figure 4 , Figure 4 This is a flow chart of the overall scenario of a feasible embodiment of the present application. As an overall process scenario of a feasible embodiment, after receiving the user's click on the car machine large screen to turn on the heat preservation charging function, this embodiment determines whether the current ambient temperature is less than 0°C. If the current ambient temperature is not less than 0°C, it means that there is no subsequent demand for battery heat preservation, and the heat preservation charging function can be canceled. If the current ambient temperature is less than 0°C, the user's heat preservation charging instruction can be responded to, and the next car use time entered by the user on the car machine large screen is received. After the user connects the target vehicle to the charging pile, locks the car and leaves, the vehicle is controlled to enter the power-off dormant state to reduce power consumption. Then, the waiting charging time can be calculated based on the time it takes to charge the vehicle and the idle time of the vehicle between the current time and the next time to use the vehicle. Determine whether the accumulated time of locking the vehicle is not less than the waiting charging time. If the accumulated time of locking the vehicle is less than the waiting charging time, the power-off dormant state is maintained. If the accumulated time of locking the vehicle is not less than the waiting time for charging, the charging-related controller required to perform the charging operation in the target vehicle can be awakened through the vehicle network, and the current state of the target vehicle can be detected to see if it meets the predetermined charging conditions. If the current state of the target vehicle does not meet the predetermined charging conditions, the power-off dormant state is maintained. If the current state of the target vehicle meets the predetermined charging conditions, the charging operation can be performed, and the charging is stopped after the current power of the target vehicle reaches the target power, and the vehicle is controlled to enter the power-off dormant state.

[0059] The present application provides a charging control device, which includes: at least one processor; and a memory that is communicatively connected to the at least one processor; wherein the memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the charging control method in the above-mentioned embodiment one.

[0060] Reference below Figure 5 , which shows a schematic diagram of the structure of a charging control device suitable for implementing the embodiment of the present application. The charging control device in the embodiment of the present application may include but is not limited to a vehicle controller, an independent controller for controlling charging, and other vehicle-mounted control devices. Figure 5 The charging control device shown is merely an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0061] like Figure 5 As shown, the charging control device may include a processing device 1001 (such as a central processing unit, a graphics processor, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM: Read Only Memory) 1002 or a program loaded from a storage device 1003 to a random access memory (RAM: Random Access Memory) 1004. In RAM1004, various programs and data required for the operation of the charging control device are also stored. The processing device 1001, ROM1002 and RAM1004 are connected to each other through a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Generally, the following systems can be connected to the I / O interface 1006: an input device 1007 including, for example, a touch screen, a touchpad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, etc.; an output device 1008 including, for example, a liquid crystal display (LCD: Liquid Crystal Display), a speaker, a vibrator, etc.; a storage device 1003 including, for example, a magnetic tape, a hard disk, etc.; and a communication device 1009. The communication device 1009 may allow the charging control device to communicate with other devices wirelessly or by wire to exchange data. Although the figure shows a charging control device with various systems, it should be understood that it is not required to implement or have all the systems shown. More or fewer systems may be implemented or have alternatively.

[0062] In particular, according to the embodiments disclosed in the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, the embodiments disclosed in the present application include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through a communication device, or installed from a storage device 1003, or installed from a ROM 1002. When the computer program is executed by the processing device 1001, the above-mentioned functions defined in the method of the embodiment disclosed in the present application are executed.

[0063] The charging control device provided by the present application adopts the charging control method in the above embodiment, which can solve the technical problem that new energy vehicles need to consume additional electricity to preheat the battery in a low temperature environment, affecting the vehicle's endurance. Compared with the prior art, the beneficial effects of the charging control device provided by the present application are the same as the beneficial effects of the charging control method provided by the above embodiment, and the other technical features in the charging control device are the same as the features disclosed in the method of the previous embodiment, which will not be repeated here.

[0064] It should be understood that the various parts disclosed in this application can be implemented by hardware, software, firmware or a combination thereof. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0065] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0066] Of course, the present application may also provide a new energy vehicle, the new energy vehicle comprising the charging control device as described above. It is understandable that the new energy vehicle may be a pure electric vehicle or a hybrid vehicle with a power battery.

[0067] The present application provides a computer-readable storage medium having computer-readable program instructions (ie, computer programs) stored thereon, and the computer-readable program instructions are used to execute the charging control method in the above-mentioned embodiment.

[0068] The computer-readable storage medium provided in the present application may be, for example, a USB flash drive, but is not limited to electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems or devices, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM: Random Access Memory), a read-only memory (ROM: Read Only Memory), an erasable programmable read-only memory (EPROM: Erasable Programmable Read Only Memory or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM: CD-Read Only Memory), an optical storage device, a magnetic storage device, or any suitable combination of the above. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program, which may be used by or in combination with an instruction execution system or device. The program code contained on the computer-readable storage medium may be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (Radio Frequency: Radio Frequency), etc., or any suitable combination of the above.

[0069] The computer-readable storage medium may be included in the charging control device; or may exist independently without being assembled into the charging control device.

[0070] The above-mentioned computer-readable storage medium carries one or more programs. When the above-mentioned one or more programs are executed by the charging control device, the charging control device: responds to the insulation charging instruction for the target vehicle, obtains the next vehicle use time set by the user, and the vehicle charging time required for the target vehicle to charge to the target power; calculates the waiting charging time according to the vehicle charging time and the vehicle idle time between the current time and the next vehicle use time; performs a charging operation after the waiting charging time, and stops charging after the target vehicle is charged to the target power, so as to keep the power battery warm until the next vehicle use time with the help of the heat generated by the target vehicle during the charging process.

[0071] Computer program code for performing the operations of the present application may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0072] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present application. In this regard, each square box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two square boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each square box in the block diagram and / or flow chart, and the combination of the square boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0073] The modules involved in the embodiments described in this application may be implemented by software or hardware, wherein the name of the module does not constitute a limitation on the unit itself in some cases.

[0074] The readable storage medium provided in this application is a computer-readable storage medium, which stores computer-readable program instructions (i.e., computer programs) for executing the above-mentioned charging control method, and can solve the technical problem that new energy vehicles need to consume additional electric energy to preheat the battery in a low-temperature environment, which affects the vehicle's endurance. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in this application are the same as the beneficial effects of the charging control method provided in the above-mentioned embodiment, and will not be repeated here.

[0075] The present application also provides a computer program product, including a computer program, which implements the steps of the charging control method as described above when executed by a processor.

[0076] The computer program product provided by this application can solve the technical problem that new energy vehicles need to consume additional electricity to preheat the battery in a low temperature environment, which affects the vehicle's endurance. Compared with the prior art, the beneficial effects of the computer program product provided by this application are the same as the beneficial effects of the charging control method provided in the above embodiment, and will not be repeated here.

[0077] The above descriptions are only some embodiments of the present application, and are not intended to limit the patent scope of the present application. All equivalent structural changes made using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A charging control method, characterized in that: The charging control method comprises: In response to a warm-up charging instruction for a target vehicle, obtaining a next vehicle use time set by a user and a vehicle charging time required for charging the target vehicle to a target power level; The waiting time for charging is calculated based on the time taken to charge the vehicle and the idle time of the vehicle between the current time and the next time to use the vehicle; After the waiting charging time has elapsed, the charging operation is performed, and the charging is stopped after the target vehicle is charged to the target power, so as to keep the power battery of the target vehicle warm until the next time of use of the vehicle by means of the heat generated during the charging process.

2. The charging control method according to claim 1, characterized in that: The step of calculating the waiting charging time according to the vehicle charging time and the vehicle idle time between the current time and the next vehicle use time includes: Get the scheduled redundancy time; The difference between the idle time of the vehicle and the time taken for charging the vehicle is used as the initial waiting time; The initial waiting time is corrected according to the predetermined redundant time to obtain the waiting charging time.

3. The charging control method according to claim 1, characterized in that: The step of obtaining the vehicle charging time required for charging the target vehicle to a target power level includes: Obtaining the remaining power and charging parameters of the target vehicle; Based on the charging parameters, the vehicle charging time required for charging the target vehicle from the remaining power to the target power is calculated.

4. The charging control method according to claim 3, characterized in that: The step of obtaining the remaining power of the target vehicle includes: Read the current state of charge of the target vehicle to obtain the current power; Calculating idle power consumption during the idle time of the vehicle; The time difference between the current power consumption and the idle power consumption is used as the remaining power of the target vehicle.

5. The charging control method according to claim 1, characterized in that: Before the step of responding to the warm-keeping charging instruction for the target vehicle, the method includes: Obtaining the current ambient temperature of the environment in which the target vehicle is located; After the current ambient temperature is less than a predetermined low temperature threshold, the step of responding to a warm-keeping charging instruction for a target vehicle is executed.

6. The charging control method according to any one of claims 1 to 5, characterized in that: Before the step of performing a charging operation after the waiting charging time has elapsed, the charging control method further includes: After the target vehicle is powered off, determining whether the current power level of the target vehicle is less than a predetermined low power threshold; If the current power level is less than a predetermined low power threshold, a charging operation is performed, and charging is stopped after the target vehicle is charged to a predetermined first power level, and the steps are performed: after the waiting charging time has elapsed, a charging operation is performed; If the current power level is not less than a predetermined low power threshold, the following step is performed: after the waiting charging time has elapsed, a charging operation is performed.

7. The charging control method according to claim 6, characterized in that: The step of performing a charging operation if the current power level is less than a predetermined low power threshold comprises: After the vehicle idle time is longer than a predetermined long time threshold, determining whether the current power level is greater than a predetermined high power level threshold; If the current power level is greater than a predetermined high power level threshold, the steps are performed: after the waiting charging time has elapsed, a charging operation is performed; If the current power level is not greater than a predetermined high power level threshold, a charging operation is performed, and charging is stopped after the target vehicle is charged to a predetermined second power level, and the step of performing a charging operation is performed after the waiting charging time has elapsed.

8. A charging control device, characterized in that: The device comprises: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program is configured to implement the steps of the charging control method according to any one of claims 1 to 7.

9. A storage medium, characterized in that: The storage medium is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, the steps of the charging control method according to any one of claims 1 to 7 are implemented.

10. A computer program product, characterized in that The computer program product comprises a computer program, and when the computer program is executed by a processor, the steps of the charging control method according to any one of claims 1 to 7 are implemented.

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