Method, device, electronic device and storage medium for prompting the charging end time

Abstract

The present application relates to the automotive field, and provides a method, device, electronic device, and storage medium for prompting the end of charging. The method includes: during the charging process, obtaining the current charging status signal, current endurance type, and current charging power of the vehicle; based on the current charging status signal and the current endurance type, determining the current charging efficiency of the vehicle, the current charging efficiency indicating the amount of endurance that can be increased per unit of charging time; determining the required endurance mileage for the vehicle to travel from the current location to the target location; calculating the required charging time for the vehicle to travel from the current location to the target location based on the current charging efficiency and the required endurance mileage; and outputting a prompt message indicating the end of charging. The present application can directly prompt the user of the specific charging time and the increase in vehicle endurance during the process of the vehicle traveling from the current location to the next location within a period of time in the future, and provide reliable support for the user to decide when to end the charging behavior.

Description

Technical Field

[0001] The present application relates to the automotive field, and in particular to a method, device, electronic device, and storage medium for indicating when charging is complete. Background Art

[0002] The trigger for vehicle charging is that the vehicle's battery power is insufficient, resulting in a reduced mileage, which cannot meet the user's vehicle usage needs and urgently needs charging to improve endurance.

[0003] Currently, the charging information displayed on the charging display screen of vehicles on the market mainly includes the current charge level and the remaining time until charging is completed. Therefore, users cannot directly understand the specific charging time and the increase in vehicle range during the journey from the current location to the next location within a certain period of time. It also cannot provide users with a reliable decision-making basis for when to end charging, resulting in a poor driving experience. Summary of the Invention

[0004] In view of this, the embodiments of the present application provide a method, device, electronic device and storage medium for prompting the end time of charging, so as to solve the problem that the user cannot directly know the specific charging time and the increase in vehicle range in the process of driving from the current location to the next location within a period of time in the future, and cannot provide a reliable decision-making basis for the user to decide when to end the charging behavior, resulting in a poor driving experience for the user.

[0005] A first aspect of an embodiment of the present application provides a method for notifying when charging is complete, comprising:

[0006] During the charging process, obtain the vehicle's current charging status signal, current endurance type, and current charging power;

[0007] Determine the current charging efficiency of the vehicle based on the current charging state signal and the current cruising type, where the current charging efficiency indicates the amount of cruising range that can be increased per unit charging time;

[0008] Determine the distance the vehicle needs to travel from its current location to its target location;

[0009] Calculate the required charging time for the vehicle to travel from its current location to its target location based on the current charging efficiency and the required range.

[0010] Based on the current charging efficiency and required charging time, a prompt message is output to indicate when charging is to be completed.

[0011] A second aspect of an embodiment of the present application provides a device for notifying when charging is complete, comprising:

[0012] An acquisition module is configured to acquire a current charging status signal, a current endurance type, and a current charging power of the vehicle during the charging process;

[0013] A first determining module is configured to determine a current charging efficiency of the vehicle based on a current charging state signal and a current cruising type, where the current charging efficiency indicates an amount of cruising range that can be increased per unit charging time;

[0014] A second determining module is configured to determine the required mileage for the vehicle to travel from the current location to the target location;

[0015] a calculation module configured to calculate the charging time required for the vehicle to travel from a current location to a target location based on the current charging efficiency and the required range;

[0016] The prompt module is configured to output prompt information indicating the end time of charging based on the current charging efficiency and the required charging time.

[0017] According to a third aspect of an embodiment of the present application, an electronic device is provided, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the above method when executing the computer program.

[0018] According to a fourth aspect of the embodiments of the present application, a computer-readable storage medium is provided, which stores a computer program. When the computer program is executed by a processor, the steps of the above method are implemented.

[0019] Compared with the prior art, the embodiments of the present application have at least the following beneficial effects: during the charging process, by first obtaining the vehicle's current charging status signal, current range type, and current charging power; then determining the vehicle's current charging efficiency based on the current charging status signal and current range type, the current charging efficiency indicates the range that can be increased per unit charging time; then determining the required range for the vehicle to travel from the current location to the target location; then calculating the required charging time for the vehicle to travel from the current location to the target location based on the current charging efficiency and the required range; finally, outputting a prompt message indicating when charging is to be completed based on the current charging efficiency and the required charging time. For example, the charging information including the current charging efficiency and the required charging time can be displayed on the charging display interface, or the prompt message indicating when charging is to be completed can be output by a prompt light or a prompt sound, so that the user can directly know the specific charging time and the increase in vehicle range during the process of traveling from the current location to the next location within a period of time in the future. At the same time, it can also provide a reliable decision-making basis for the user to decide when to end the charging behavior, thereby improving the user's driving experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0021] Figure 1 This is a flow chart of a method for prompting the end time of charging provided by an embodiment of the present application;

[0022] Figure 2 This is a schematic diagram of the positional relationship between a historical driving trajectory and the current position of a vehicle in a method for prompting the end of charging provided in an embodiment of the present application;

[0023] Figure 3 This is a structural diagram of a device for notifying when charging is complete, provided in an embodiment of the present application;

[0024] Figure 4 This is a structural diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0025] In the following description, specific details such as specific system structures and techniques are provided for purposes of illustration rather than limitation to facilitate a thorough understanding of the embodiments of the present application. However, it will be apparent to those skilled in the art that the present application may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid obscuring the description of the present application with unnecessary detail.

[0026] A method and device for prompting the end of charging according to an embodiment of the present application will be described in detail below with reference to the accompanying drawings.

[0027] Figure 1 This is a flow chart of a method for prompting the end of charging provided by an embodiment of the present application. The method for prompting the end of charging can be executed by the vehicle side. Figure 1 As shown, the method for notifying when charging is complete includes:

[0028] Step S101: During the charging process, the current charging status signal, current endurance type, and current charging power of the vehicle are obtained.

[0029] When the vehicle's battery level drops to a certain level (such as below a certain battery threshold) and is insufficient to reduce the mileage, the charging behavior is triggered and the charging process begins.

[0030] Step S102 : Based on the current charging state signal and the current cruising type, the current charging efficiency of the vehicle is determined. The current charging efficiency indicates the cruising range that can be increased per unit charging time.

[0031] The charging unit time can be set according to the actual situation. Usually, the charging unit time is 1 minute or 1 hour.

[0032] The range added per unit of charging time refers to the amount of range that can be increased for every minute (or hour) of charging. For example, the range can be increased by X kilometers per minute of charging, and the range can be increased by Y kilometers per hour of charging.

[0033] Step S103: determining the required mileage for the vehicle to travel from the current location to the target location.

[0034] The current location refers to the current location of the vehicle, such as a specific location in City A.

[0035] The target location refers to the destination where the user wants to go, such as a specific location in city B.

[0036] The required cruising range refers to the distance between the current location and the target location.

[0037] In one embodiment, the location information of the current location (such as location coordinates) and the location information of the target location (such as location coordinates) can be obtained first, and then the distance value between the current location and the target location can be calculated based on their location coordinates to obtain the required cruising range.

[0038] Step S104 , calculating the required charging time for the vehicle to travel from the current location to the target location based on the current charging efficiency and the required cruising range.

[0039] The required charging time for the vehicle to travel from its current location to its target location can be calculated using the formula: Required charging time = required range ÷ current charging efficiency.

[0040] Step S105 : Based on the current charging efficiency and the required charging time, output a prompt message indicating when charging will end.

[0041] A prompt indicating when charging is complete can be displayed on the charging display interface, including the current charging efficiency and required charging time. A prompt indicating when charging is complete can also be output via a prompt light and / or a prompt sound. For example, a combination of different colored prompt lights and prompt sounds can be used to indicate the current charging efficiency and required charging time to the user.

[0042] The technical solution provided by the embodiment of the present application is as follows: during the charging process, first, the current charging efficiency of the vehicle is determined based on the current charging status signal and the current endurance type of the vehicle, and the current charging efficiency indicates the amount of endurance that can be increased per unit charging time; then, the required charging time for the vehicle to travel from the current position to the target position is calculated based on the current charging efficiency and the required endurance mileage for the vehicle to travel from the current position to the target position; finally, based on the current charging efficiency and the required charging time, a prompt message indicating the end time of charging is output, so that the user can intuitively know the specific charging time and the increase in vehicle endurance in the process of traveling from the current position to the next position within a period of time in the future, and at the same time, a reliable decision-making basis can be provided for the user to decide when to end the charging behavior, thereby improving the user's driving experience.

[0043] The method for prompting the end of charging provided in the embodiment of the present application can be executed by the vehicle side or by a terminal device (such as a mobile phone, a computer, etc.). If it is executed by the vehicle side, the prompt of the end of charging obtained through the above steps can be displayed on the charging display screen of the vehicle side. If it is executed by the terminal device, a communication connection can be established between the terminal device and the vehicle side, and the current charging status signal and the current endurance type of the vehicle can be obtained to determine the current charging efficiency of the vehicle, and then the required charging time for the vehicle to travel from the current position to the target position is calculated based on the current charging efficiency and the required endurance mileage of the vehicle from the current position to the target position, and then the current charging efficiency and the required charging time are displayed on the display screen of the terminal device.

[0044] In some embodiments, the above step S102 specifically includes:

[0045] Determine the target calculation strategy based on the current charging status signal and the current endurance type;

[0046] Get the current vehicle energy consumption value under the current endurance type;

[0047] Calculate the current charging efficiency of the vehicle based on the target calculation strategy and the current vehicle energy consumption value.

[0048] The current charging status signal includes fast charging mode and slow charging mode. Fast charging mode, i.e., rapid charging (DC charging), is a charging method that can fully charge the battery within 1 to 5 hours. Slow charging mode, i.e., AC charging, charges the vehicle directly using 220V AC power from the grid.

[0049] Current range types include WLTC (World Light Vehicle Test Cycle), CLTC (China Light-duty Vehicle Test Cycle), NEDC (New European Driving Cycle), and combined range. Combined range is a vehicle's range measured based on the user's driving habits.

[0050] In some embodiments, when the target calculation strategy is the first slow charging calculation strategy, calculating the current charging efficiency of the vehicle based on the target calculation strategy and the current vehicle energy consumption value specifically includes the following steps:

[0051] determining a vehicle drive mode of the vehicle;

[0052] Determine the current vehicle energy consumption value of the vehicle based on the current range type and vehicle driving mode;

[0053] The current charging efficiency of the vehicle is calculated based on the first slow charging calculation strategy, the current charging power and the current vehicle energy consumption value.

[0054] Vehicle drive types include two-wheel drive and four-wheel drive. In two-wheel drive, all engine power is transmitted to the rear drive axle, driving the rear wheels to propel the vehicle forward. In actual driving, it is the rear wheels that "push" the front wheels, propelling the vehicle forward. In four-wheel drive, both front and rear wheels are powered, and the engine torque is distributed to all wheels in varying proportions according to road conditions, improving the vehicle's driving performance.

[0055] The vehicle's energy consumption generally varies depending on the vehicle's drive mode and range. This value significantly impacts the vehicle's range. Therefore, it's necessary to first determine the vehicle's current energy consumption based on the vehicle's range and drive mode.

[0056] The current vehicle energy consumption value can be determined based on the vehicle energy consumption test results under the current range type and the vehicle's driving mode. Typically, the vehicle energy consumption test results are fixed attribute values of the vehicle, which can be determined based on relevant data provided by the manufacturer.

[0057] In actual applications, a data table can be designed in advance based on the correspondence between the endurance type, vehicle driving mode and vehicle energy consumption value, and the relevant data can be filled into the data table. Later, when the current vehicle energy consumption value needs to be obtained, it can be queried from the data table based on the known endurance type and vehicle driving mode.

[0058] The current charging power can be calculated based on the current charging voltage and current charging current collected from the vehicle. The current charging voltage can be collected using the vehicle's voltmeter, and the current charging current can be collected using the vehicle's ammeter.

[0059] If the current cruising range type is WLTC cruising range and the current charging status signal is slow charging mode, the target calculation strategy is the first slow charging calculation strategy. Based on the first slow charging calculation strategy, the current charging power and the current vehicle energy consumption value, the current charging efficiency of the vehicle is calculated. Specifically, the current charging efficiency of the vehicle can be calculated according to the following formula (1) or formula (2).

[0060]

[0061] In formula (1), U1 represents the current charging voltage of the vehicle in the WLTC operating mode; I1 represents the current charging current of the vehicle in the WLTC operating mode; P WLTC1 Indicates the current vehicle energy consumption value under WLTC operating conditions and two-wheel drive mode; P WLTCslow1 Indicates the current charging efficiency under WLTC conditions and two-wheel drive mode, in km / min.

[0062]

[0063] In formula (2), U2 represents the current charging voltage of the vehicle in the WLTC operating mode; I2 represents the current charging current of the vehicle in the WLTC operating mode; P WLTC2 Indicates the current vehicle energy consumption value under WLTC working condition and four-wheel drive mode; P WLTCslow2 Indicates the current charging efficiency under WLTC operating conditions and four-wheel drive mode, in km / min.

[0064] If the current cruising range type is WLTC cruising range and the current charging status signal is fast charging mode, the target calculation strategy is the first fast charging calculation strategy. Based on the first fast charging calculation strategy, the current charging power, and the current vehicle energy consumption value, the current charging efficiency of the vehicle is calculated. Specifically, the current charging efficiency of the vehicle can be calculated according to the following formula (3) or formula (4).

[0065]

[0066] In formula (3), U3 represents the current charging voltage of the vehicle in the WLTC operating mode; I3 represents the current charging current of the vehicle in the WLTC operating mode; P WLTC3 Indicates the current vehicle energy consumption value under WLTC operating conditions and two-wheel drive mode; P WLTCquick1Indicates the current charging efficiency under WLTC operating conditions and two-wheel drive mode, in km / h.

[0067]

[0068] In formula (3), U4 represents the current charging voltage of the vehicle in the WLTC operating mode; I4 represents the current charging current of the vehicle in the WLTC operating mode; P WLTC4 Indicates the current vehicle energy consumption value under WLTC working condition and four-wheel drive mode; P WLTCquick2 Indicates the current charging efficiency under WLTC operating conditions and four-wheel drive mode, in km / h.

[0069] If the current endurance type is CLTC endurance and the current charging status signal is slow charging mode, the target calculation strategy is the third slow charging calculation strategy. Based on the third slow charging calculation strategy, the current charging power and the current vehicle energy consumption value, the current charging efficiency of the vehicle is calculated. Specifically, the current charging efficiency of the vehicle can be calculated according to the following formula (5) or formula (6).

[0070]

[0071] In formula (5), U5 represents the current charging voltage of the vehicle in the CLTC operating mode; I5 represents the current charging current of the vehicle in the CLTC operating mode; P CLTC1 Indicates the current vehicle energy consumption value under CLTC operating conditions and two-wheel drive mode; P CLTCslow1 Indicates the current charging efficiency under CLTC operating conditions and two-wheel drive mode, in km / min.

[0072]

[0073] In formula (6), U6 represents the current charging voltage of the vehicle in the CLTC operating mode; I6 represents the current charging current of the vehicle in the CLTC operating mode; P CLTC2 Indicates the current vehicle energy consumption value under CLTC working condition and four-wheel drive mode; P CLTCslow2 Indicates the current charging efficiency under CLTC operating conditions and four-wheel drive mode, in km / min.

[0074] If the current endurance type is CLTC endurance and the current charging status signal is fast charging mode, the target calculation strategy is the third fast charging calculation strategy. Based on the third fast charging calculation strategy, the current charging power and the current vehicle energy consumption value, the current charging efficiency of the vehicle is calculated. Specifically, the current charging efficiency of the vehicle can be calculated according to the following formula (7) or formula (8).

[0075]

[0076] In formula (7), U7 represents the current charging voltage of the vehicle in the CLTC operating mode; I7 represents the current charging current of the vehicle in the CLTC operating mode; P CLTC3 Indicates the current vehicle energy consumption value under CLTC operating conditions and two-wheel drive mode; P CLTCquick1 Indicates the current charging efficiency under CLTC operating conditions and two-wheel drive mode, in km / h.

[0077]

[0078] In formula (8), U8 represents the current charging voltage of the vehicle in the CLTC operating mode; I8 represents the current charging current of the vehicle in the CLTC operating mode; P CLTC4 Indicates the current vehicle energy consumption value under CLTC working condition and four-wheel drive mode; P CLTCquick2 Indicates the current charging efficiency under CLTC operating conditions and four-wheel drive mode, in km / h.

[0079] If the current cruising range type is NEDC operating range and the current charging status signal is slow charging mode, the target calculation strategy is the fourth slow charging calculation strategy. Based on the fourth slow charging calculation strategy, the current charging power, and the current vehicle energy consumption value, the current charging efficiency of the vehicle is calculated. Specifically, the current charging efficiency of the vehicle can be calculated according to the following formula (9) or formula (10).

[0080]

[0081] In formula (9), U9 represents the current charging voltage of the vehicle in the NEDC operating mode; I9 represents the current charging current of the vehicle in the NEDC operating mode; P NEDC1 Indicates the current vehicle energy consumption value under NEDC operating conditions and two-wheel drive mode; P NEDCslow1 Indicates the current charging efficiency under NEDC operating conditions and two-wheel drive mode, in km / min.

[0082]

[0083] In formula (10), U 10 Indicates the current charging voltage of the vehicle in NEDC operating mode; I 10 Indicates the current charging current of the vehicle in NEDC operating mode; P NEDC2 Indicates the current vehicle energy consumption value under NEDC operating conditions and four-wheel drive mode; P NEDCslow2Indicates the current charging efficiency under NEDC operating conditions and four-wheel drive mode, in km / min.

[0084] If the current cruising range type is NEDC operating range and the current charging status signal is fast charging mode, the target calculation strategy is the fourth fast charging calculation strategy. Based on the third fast charging calculation strategy, the current charging power and the current vehicle energy consumption value, the current charging efficiency of the vehicle is calculated. Specifically, the current charging efficiency of the vehicle can be calculated according to the following formula (11) or formula (12).

[0085]

[0086] In formula (11), U 11 Indicates the current charging voltage of the vehicle in NEDC operating mode; I 11 Indicates the current charging current of the vehicle in NEDC operating mode; P NEDC3 Indicates the current vehicle energy consumption value under NEDC operating conditions and two-wheel drive mode; P NEDCquick1 Indicates the current charging efficiency under NEDC operating conditions and two-wheel drive mode, in km / h.

[0087]

[0088] In formula (12), U 12 Indicates the current charging voltage of the vehicle in NEDC operating mode; I 12 Indicates the current charging current of the vehicle in NEDC operating mode; P NEDC4 Indicates the current vehicle energy consumption value under NEDC operating conditions and four-wheel drive mode; P NEDCquick2 Indicates the current charging efficiency under NEDC operating conditions and four-wheel drive mode, in km / h.

[0089] If the current endurance type is comprehensive working condition endurance and the current charging status signal is slow charging mode, the target calculation strategy is the second slow charging calculation strategy. Based on the target calculation strategy and the current vehicle energy consumption value, the current charging efficiency of the vehicle is calculated, specifically including the following steps:

[0090] Obtaining a first actual energy consumption value for each accumulated first unit distance traveled by the vehicle, and a second actual energy consumption value for each accumulated second unit distance traveled by the vehicle, wherein the first unit distance is less than the second unit distance;

[0091] determining a current vehicle energy consumption value of the vehicle according to the first actual energy consumption value and the second actual energy consumption value;

[0092] The current charging efficiency of the vehicle is calculated based on the fourth slow charging calculation strategy and the current vehicle energy consumption value.

[0093] The first unit distance and the second unit distance can be set according to the actual situation. Usually the first unit distance is set to 1km and the second unit distance is set to 10km.

[0094] For example, the first unit distance is 1 km and the second unit distance is 10 km. For example, if the total accumulated mileage is 100 km, the vehicle outputs a short distance and its first actual energy consumption value for every 1 km it has traveled, and a long distance and its second actual energy consumption value for every 10 km it has traveled. When the vehicle has traveled the first 1 km, a short distance and its first actual energy consumption value x1 are output. When the vehicle has traveled the second 1 km (i.e., the current cumulative mileage is 2 km), a short distance and its first actual energy consumption value x2 are output... When the vehicle has traveled the tenth 1 km (i.e., the current cumulative mileage is 10 km), a short distance and its first actual energy consumption value x10 are output. At this time, the first 10 km has been traveled (i.e., the current cumulative mileage is 10 km), and a long distance and its second actual energy consumption value y1 are output... And so on. When the vehicle has traveled the hundredth 1 km (i.e., the current cumulative mileage is 100 km), a short distance and its first actual energy consumption value x100 are output. At this time, the tenth 10 km has been traveled (i.e., the current cumulative mileage is 100 km), and a long distance and its second actual energy consumption value y10 are output.

[0095] Assuming the current total accumulated mileage is 100 km, the current vehicle energy consumption can be calculated by obtaining the first actual energy consumption values x90, x91, x92, x93, x94, x95, x96, x97, x98, x99, and x100 for the 90-100 km mileage segment, and the second actual energy consumption values y1-y10 for the first 10 km segment to the tenth 10 km segment (i.e., the current accumulated mileage is 100 km). The actual vehicle average energy consumption is calculated by weighting the ten first actual energy consumption values for each 1 km segment and the ten second actual energy consumption values for each 10 km segment.

[0096] Specifically, a weighted calculation is performed based on the first actual energy consumption values x90-x100 and the second actual energy consumption values y1-y10 to obtain the actual average energy consumption of the entire vehicle. The calculation formula is as follows: Actual average energy consumption of the entire vehicle = (x90+x91+x92+x93+x94+x95+x96+x97+x98+x99+x100)*w1 / 10+(y1+y2+y3+y4+y5+y6+y7+y8+y9+y10)*w2 / 10. Where w1 and w2 are weight coefficients. The weight coefficients w1 and w2 of the weighted calculation can be set according to actual conditions, for example, w1 = 0.3, w2 = 0.7, etc.

[0097] Finally, the actual average energy consumption of the entire vehicle calculated above can be determined as the current vehicle energy consumption value.

[0098] The current charging efficiency of the vehicle is calculated based on the second slow charging calculation strategy and the current vehicle energy consumption value. Specifically, the current charging efficiency of the vehicle can be calculated according to formula (13) or (14).

[0099]

[0100] In formula (13), U 13 Indicates the current charging voltage of the vehicle in the comprehensive working condition endurance mode; I 13 Indicates the current charging current of the vehicle in the comprehensive working condition endurance mode; P compre1 Indicates the current vehicle energy consumption value under comprehensive working conditions and two-wheel drive mode; P compreslow1 Indicates the current charging efficiency under comprehensive operating conditions and two-wheel drive mode, in km / min.

[0101]

[0102] In formula (14), U 14 Indicates the current charging voltage of the vehicle in the comprehensive working condition endurance mode; I 14 Indicates the current charging current of the vehicle in the comprehensive working condition endurance mode; P compre2 Indicates the current vehicle energy consumption value under comprehensive working conditions and four-wheel drive mode; P compreslow2 Indicates the current charging efficiency under comprehensive operating conditions and four-wheel drive mode, in km / min.

[0103] If the current endurance type is comprehensive operating condition endurance and the current charging status signal is slow charging mode, the target calculation strategy is the second fast charging calculation strategy. Based on the second fast charging calculation strategy and the current vehicle energy consumption value, the current charging efficiency of the vehicle is calculated. Specifically, the current charging efficiency of the vehicle can be calculated according to formula (15) or (16).

[0104]

[0105] In formula (15), U 15 Indicates the current charging voltage of the vehicle in the comprehensive working condition endurance mode; I 15 Indicates the current charging current of the vehicle in the comprehensive working condition endurance mode; P compre3 Indicates the current vehicle energy consumption value under comprehensive working conditions and two-wheel drive mode; P comprequick1 Indicates the current charging efficiency under comprehensive operating conditions and two-wheel drive mode, in km / h.

[0106]

[0107] In formula (16), U 16 Indicates the current charging voltage of the vehicle in the comprehensive working condition endurance mode; I 16 Indicates the current charging current of the vehicle in the comprehensive working condition endurance mode; P compre4 Indicates the current vehicle energy consumption value under comprehensive working conditions and four-wheel drive mode; P comprequick2 Indicates the current charging efficiency under comprehensive operating conditions and four-wheel drive mode, in km / h.

[0108] The technical solution provided in the embodiment of the present application can determine the charging calculation strategy selected under different endurance types, different vehicle driving modes, and different charging states through the above-mentioned method, and further calculate the corresponding charging efficiency based on the charging calculation strategy, and display the charging efficiency (that is, the real-time display of the number of endurance miles that can be increased by charging per minute (hour)) on the charging display interface, so that the user can intuitively know the specific charging time and the increase in vehicle endurance in the process of driving from the current location to the next location in a certain period of time in the future. At the same time, it can provide a reliable decision-making basis for the user to decide when to end the charging behavior, thereby improving the user's driving experience.

[0109] In a preferred embodiment of the present application, in order to ensure smooth data display, the current value is updated for calculation only when the current jump is greater than 1A and lasts for more than 1s, so as to avoid data jumping back and forth and affecting the user experience.

[0110] In an embodiment of the present application, the charging information on the charging display interface can be updated once every 1 second so that the user can promptly learn about the current charging efficiency and other information.

[0111] In some embodiments, before the above step S103, the following steps are further included:

[0112] The historical driving data of the vehicle is obtained, and the historical driving data includes a set of historical driving trajectories. Based on the set of historical driving trajectories, the target location that the user wants to drive to in the future is predicted.

[0113] The historical driving data generally refers to the driving record data of the user's vehicle trips in the recent period (for example, the last 1 month, 2 months, 3 months, or 6 months). The driving record data can be obtained from the historical driving records recorded by the vehicle, or by retrieving the historical driving records corresponding to the vehicle from a remote server.

[0114] Future time refers to any time after the current time. For example, the current time is 10:25 on xx / xx / 20xx. Any time can be a time after 10:25 on xx / xx / 20xx, such as 12:35 on xx / xx / 20xx.

[0115] A historical driving trajectory collection includes multiple historical driving trajectories, each of which includes multiple driving path nodes and a node flow sequence. Driving path nodes are typically locations where a user's vehicle passes and remains for more than a preset duration. The preset duration can be flexibly set based on actual circumstances, for example, 5 minutes, 10 minutes, 20 minutes, etc.

[0116] Based on historical driving trajectories, predict the target location that the user wants to drive to in the future. The specific steps include the following:

[0117] First, the distance values between the vehicle's current position and each driving path node on each historical driving trajectory are calculated respectively; then, the target driving path node closest to the vehicle's current position is determined based on the distance values, and the historical driving trajectory where the target driving path node is located is determined as the target historical driving trajectory; finally, based on the node flow sequence of the target historical driving trajectory, the next driving path node of the target driving path node is determined, and the next driving path node is determined as the target position.

[0118] Combine Figure 2 As an example, assume that the historical driving trajectory set includes three historical driving trajectories, labeled as historical driving trajectories A, B, and C. Among them, historical driving trajectory A includes four driving path nodes, labeled as A1, A2, A3, and A4, and the node flow order is A1→A2→A3→A4. Historical driving trajectory B includes three driving path nodes, labeled as B1, B2, and B3, and the node flow order is B1→B2→B3. Historical driving trajectory C includes three driving path nodes, labeled as C1, C2, and C3, and the node flow order is C1→C2→C3. Assuming that the vehicle is at the current position M, the distance value between the current position M and each driving path node on the historical driving trajectories A, B, and C is calculated respectively. That is, the distance value d between the current position M and the driving path nodes A1, A2, A3, A4, B1, B2, B3, C1, C2, and C3 is calculated respectively. MA1 d MA2 d MA3 d MA4 d MB1 d MB2 d MB3 d MC1 d MC2 d MC3Then, compare the distance values mentioned above and determine the minimum distance value. If the minimum distance value obtained after comparison is d MB2 , the target driving path node closest to the vehicle's current location M can be determined to be B2, and the historical driving trajectory B where B2 is located can be determined as the target historical driving trajectory. Finally, based on the node flow sequence of historical driving trajectory B, the next driving path node after driving path node B2 can be determined to be driving path node B3, and driving path node B3 can be determined as the target location.

[0119] In some embodiments, if the minimum distance value obtained after comparison is the last path node in a historical driving trajectory, such as path node B3, and there is no next path node after path node B3, the path node corresponding to the minimum distance value is discarded, and the search continues for the second-to-last minimum distance value...the nth-to-last minimum distance value, repeating the above steps until the target location is determined. Where n = the total number of path nodes.

[0120] In some embodiments, the historical driving data also includes historical driving time, which includes the time the vehicle spends stopping at each driving path node. Determining the target driving path node closest to the vehicle's current location based on the distance value includes the following steps:

[0121] First, driving path nodes whose distance values from the vehicle's current position fall within a preset distance range are classified into a set of alternative driving path nodes, where the set of alternative driving path nodes includes at least one alternative driving path node. Then, the current time of the vehicle at the current position is obtained. Finally, a target driving path node is selected from the set of alternative driving path nodes based on the current time and the driving stop time of the alternative driving path nodes.

[0122] The preset distance range can be flexibly set according to actual conditions. For example, it can be within 1 meter, within 5 meters, etc., and is not specifically limited here.

[0123] Driving stop time can be understood as the time it takes for a vehicle to reach a certain driving path node.

[0124] Combined with the above examples, continue to refer to Figure 2, assuming that the driving path nodes that meet the preset distance range are driving path nodes A1, A2, B2, and C1, then the driving path nodes A1, A2, B2, and C1 are all classified into the set of alternative driving path nodes. The current time at the current location can be collected by the vehicle end, or the current time of the vehicle at the current location can be determined by a terminal device (such as a mobile phone, computer, etc.) and sent to the vehicle end. Then, the time difference between the current time and the driving stop time corresponding to the driving path nodes A1, A2, B2, and C1 is compared, and the driving path node closest to the current time is found as the target driving path node. Assuming that the driving path node closest to the current time is C1, then the driving path node C1 is used as the target driving path node.

[0125] In other embodiments, a time range value may be pre-set. The time difference between the vehicle's current time at the current location and the stop time at each path node in each historical path in the historical path set is calculated. At least one candidate path node whose time difference falls within the time range value is selected. Then, from these candidate path nodes, the one with the smallest distance to the current location is selected as the target path node.

[0126] Combine Figure 2 As an example, the time difference T between the current time of the vehicle at the current position M and the time of the vehicle stopping at the nodes A1, A2, A3, A4, B1, B2, B3, C1, C2, and C3 on the driving path is calculated respectively. MA1 、T MA2 、T MA3 、T MA4 、T MB1 、T MB2 、T MB3 、T MC1 、T MC2 、T MC3 If the time difference T MA1 、T MA2 、T MB2 、T MC1 If the time intervals are all within the preset time range, the driving path nodes A1, A2, B2, and C1 are determined as candidate driving path nodes. Then, the distance values d between the current position M and the driving path nodes A1, A2, B2, and C1 are calculated respectively. MA1 d MA2 d MB2 d MC1 If the minimum distance value obtained after comparison is d MB2 , then the candidate driving path node B2 is determined as the target driving path node.

[0127] The technical solution provided in this embodiment can make full use of the user's historical driving habits to accurately predict the next place (i.e., the target location) to which the user wants to drive in the future, which is conducive to the subsequent calculation of the required cruising range and the required charging time based on the predicted target location, and outputs prompt information indicating the time when charging ends. In this way, the user can intuitively know the specific charging time and the increase in vehicle cruising range in the process of driving from the current location to the next location within a period of time in the future. At the same time, it can provide the user with a reliable decision-making basis for deciding when to end charging, thereby improving the user's driving experience.

[0128] In some embodiments, the target location may also be determined by the user through manual input, voice entry, etc.

[0129] All of the above optional technical solutions can be combined in any way to form optional embodiments of the present application, and will not be described in detail here.

[0130] The following are device embodiments of the present application, which can be used to implement the method embodiments of the present application. For details not disclosed in the device embodiments of the present application, please refer to the method embodiments of the present application.

[0131] Figure 3 Schematic diagram of a device for notifying when charging is complete provided in an embodiment of the present application. Figure 3 As shown, the device for notifying when charging is complete includes:

[0132] The acquisition module 301 is configured to obtain the current charging status signal, current endurance type and current charging power of the vehicle during the charging process;

[0133] A first determining module 302 is configured to determine a current charging efficiency of the vehicle based on a current charging state signal and a current cruising type, where the current charging efficiency indicates an amount of cruising range that can be increased per unit charging time;

[0134] The second determining module 303 is configured to determine the required driving distance for the vehicle to travel from the current location to the target location;

[0135] The calculation module 304 is configured to calculate the required charging time for the vehicle to travel from the current location to the target location based on the current charging efficiency and the required range;

[0136] The prompt module 305 is configured to output prompt information indicating when charging is to be completed based on the current charging efficiency and the required charging time.

[0137] The technical solution provided by the embodiment of the present application is as follows: during the charging process, a first determination module 302 determines the current charging efficiency of the vehicle based on the current charging status signal and the current endurance type of the vehicle, and the current charging efficiency indicates the amount of endurance that can be increased per unit time of charging; a calculation module 304 calculates the required charging time for the vehicle to travel from the current position to the target position based on the current charging efficiency and the required endurance mileage for the vehicle to travel from the current position to the target position; a prompt module 305 outputs prompt information for indicating the end time of charging based on the current charging efficiency and the required charging time, so that the user can intuitively know the specific charging time for traveling from the current position to the next position and the increase in vehicle endurance within a period of time in the future, and at the same time can provide a reliable decision-making basis for the user to decide when to end the charging behavior, thereby improving the user's driving experience.

[0138] In some embodiments, the first determining module 302 specifically includes:

[0139] a strategy determination unit configured to determine a target calculation strategy based on a current charging state signal and a current endurance type;

[0140] an energy consumption acquisition unit, configured to acquire a current vehicle energy consumption value of the vehicle under a current cruising type;

[0141] The efficiency calculation unit is configured to calculate the current charging efficiency of the vehicle based on the target calculation strategy and the current vehicle energy consumption value.

[0142] In some embodiments, the target computing strategy is a first slow charging computing strategy.

[0143] The above efficiency calculation unit specifically includes:

[0144] a driving determination component configured to determine a vehicle driving mode of the vehicle;

[0145] a first energy consumption determination component configured to determine a current vehicle energy consumption value of the vehicle based on a current range type and a vehicle driving mode;

[0146] The first efficiency calculation component is configured to calculate the current charging efficiency of the vehicle based on the first slow charging calculation strategy, the current charging power and the current vehicle energy consumption value.

[0147] In other embodiments, the target computing strategy is the fourth slow charging computing strategy.

[0148] The above efficiency calculation unit specifically includes:

[0149] an energy consumption acquisition component configured to acquire a first actual energy consumption value of the vehicle for each accumulated first unit distance traveled, and a second actual energy consumption value of the vehicle for each accumulated second unit distance traveled, the first unit distance being less than the second unit distance;

[0150] a second energy consumption determining component configured to determine a current vehicle energy consumption value of the vehicle based on the first actual energy consumption value and the second actual energy consumption value;

[0151] The second efficiency calculation component is configured to calculate the current charging efficiency of the vehicle according to the fourth slow charging calculation strategy and the current vehicle energy consumption value.

[0152] The technical solution provided in the embodiment of the present application can determine the charging calculation strategy selected under different endurance types, different vehicle driving modes, and different charging states through the above-mentioned method, and further calculate the corresponding charging efficiency based on the charging calculation strategy, and display the charging efficiency (that is, the real-time display of the number of endurance miles that can be increased by charging per minute (hour)) on the charging display interface, so that the user can intuitively know the specific charging time and the increase in vehicle endurance in the process of driving from the current location to the next location in a certain period of time in the future. At the same time, it can provide the user with a reliable decision-making basis for deciding when to end the charging behavior, thereby improving the user's driving experience.

[0153] In some embodiments, the device for notifying when charging is complete further includes:

[0154] A data acquisition module is configured to acquire historical driving data of the vehicle, wherein the historical driving data includes a set of historical driving trajectories;

[0155] The prediction module is configured to predict a target location that the user wants to drive to in the future based on a set of historical driving trajectories.

[0156] In some embodiments, the historical driving trajectory set includes multiple historical driving trajectories, and each historical driving trajectory includes multiple driving path nodes and node flow sequences.

[0157] The above prediction module specifically includes:

[0158] a calculation unit configured to respectively calculate the distance value between the current position of the vehicle and each driving path node on each historical driving trajectory;

[0159] a trajectory determination unit configured to determine a target driving path node closest to the current position of the vehicle according to the distance value, and determine a historical driving trajectory where the target driving path node is located as a target historical driving trajectory;

[0160] The target determination unit is configured to determine the next driving path node of the target driving path node according to the node flow sequence of the target historical driving trajectory, and determine the next driving path node as the target position.

[0161] In some embodiments, the historical driving data further includes historical driving time, and the historical driving time includes the driving stop time of the vehicle before reaching each driving path node.

[0162] The above-mentioned trajectory determination unit specifically includes:

[0163] a classification component configured to classify driving path nodes whose distance values from the current position of the vehicle meet a preset distance range into a set of candidate driving path nodes, the set of candidate driving path nodes including at least one candidate driving path node;

[0164] A time acquisition component configured to obtain the current time of the vehicle at the current location;

[0165] The screening component is configured to screen out a target driving path node from the set of candidate driving path nodes according to the current time and the driving stop time of the candidate driving path nodes.

[0166] The technical solution provided in the embodiment of the present application can make full use of the user's historical driving habits to accurately predict the next place (i.e., the target location) to which the user wants to drive in the future, which is conducive to the subsequent calculation of the required cruising range and the required charging time based on the predicted target location, and outputs prompt information indicating the time when charging ends, so that the user can intuitively know the specific charging time and the increase in vehicle cruising range in the process of driving from the current location to the next location within a period of time in the future. At the same time, it can provide the user with a reliable decision-making basis for deciding when to end charging, thereby improving the user's driving experience.

[0167] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0168] Figure 4 Schematic diagram of the electronic device 4 provided in the embodiment of the present application. Figure 4 As shown, the electronic device 4 of this embodiment includes: a processor 401, a memory 402, and a computer program 404 stored in the memory 402 and executable by the processor 401. When the processor 401 executes the computer program 404, the steps of the above-described method embodiments are implemented. Alternatively, when the processor 401 executes the computer program 404, the functions of the modules / units in the above-described device embodiments are implemented.

[0169] The electronic device 4 may be a desktop computer, a notebook, a PDA, a cloud server, or other electronic device. The electronic device 4 may include but is not limited to a processor 401 and a memory 402. Those skilled in the art will appreciate that Figure 4This is merely an example of the electronic device 4 and does not limit the electronic device 4 . The electronic device 4 may include more or fewer components than shown in the figure, or different components.

[0170] The processor 401 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.

[0171] Memory 402 can be an internal storage unit of electronic device 4, such as a hard disk or memory of electronic device 4. Memory 402 can also be an external storage device of electronic device 4, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) card, a flash memory card, etc. equipped on electronic device 4. Memory 402 can also include both an internal storage unit of electronic device 4 and an external storage device. Memory 402 is used to store computer programs and other programs and data required by the electronic device.

[0172] Those skilled in the art will clearly understand that for the sake of convenience and brevity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In actual applications, the above-mentioned functions can be distributed and completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.

[0173] If the integrated module / unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present application implements all or part of the process in the above-mentioned embodiment method, and can also be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and when the computer program is executed by the processor, it can implement the steps of the above-mentioned various method embodiments. The computer program may include computer program code, which may be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may include: any entity or device capable of carrying computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electric carrier signal, telecommunication signal and software distribution medium. It should be noted that the content contained in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable media do not include electric carrier signals and telecommunication signals.

[0174] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the scope of protection of the present application.

Claims

1. A method for notifying when charging is complete, characterized in that: include: During the charging process, obtain the vehicle's current charging status signal, current endurance type, and current charging power; Determining a current charging efficiency of the vehicle based on the current charging state signal and the current cruising type, the current charging efficiency indicating an amount of cruising range that can be increased per unit charging time; Determining the required driving range for the vehicle to travel from the current location to the target location; Calculate the required charging time for the vehicle to travel from the current location to the target location based on the current charging efficiency and the required cruising range; Based on the current charging efficiency and the required charging time, outputting a prompt message indicating when charging is to be completed; Before determining the required mileage for the vehicle to travel from the current location to the target location, the method further includes: Acquire historical driving data of the vehicle, the historical driving data including a historical driving trajectory set and historical driving time, the historical driving time including the driving stop time of the vehicle at each driving path node; predicting a target location that the user wants to drive to in the future based on the historical driving trajectory set; the historical driving trajectory set includes multiple historical driving trajectories, each of which includes multiple driving path nodes and node flow sequences; Based on the historical driving trajectory, the target location that the user wants to drive to in the future is predicted, including: Calculating the distance between the current position of the vehicle and each driving path node on each historical driving trajectory; Determining a target driving path node that is closest to the current position of the vehicle according to the distance value, and determining the historical driving trajectory where the target driving path node is located as a target historical driving trajectory; Determining the next driving path node of the target driving path node according to the node flow sequence of the target historical driving trajectory, and determining the next driving path node as the target position; Determining a target driving path node closest to the current position of the vehicle according to the distance value includes: Classifying the driving path nodes whose distance values from the current position of the vehicle fall within a preset distance range into a set of candidate driving path nodes, wherein the set of candidate driving path nodes includes at least one candidate driving path node; Obtaining the current time of the vehicle at the current location; A target driving path node is selected from the set of candidate driving path nodes according to the current time and the driving stop time of the candidate driving path nodes.

2. The method according to claim 1, characterized in that Determining a current charging efficiency of the vehicle based on the current charging state signal and the current endurance type includes: Determining a target calculation strategy based on the current charging state signal and the current endurance type; Get the current vehicle energy consumption value of the vehicle under the current cruising type; Based on the target calculation strategy and the current vehicle energy consumption value, the current charging efficiency of the vehicle is calculated.

3. The method according to claim 2, characterized in that The target calculation strategy is a first slow charging calculation strategy; Calculating a current charging efficiency of the vehicle based on the target calculation strategy and the current vehicle energy consumption value includes: determining a vehicle drive mode of the vehicle; Determining a current vehicle energy consumption value of the vehicle based on the current endurance type and the vehicle driving mode; Based on the first slow charging calculation strategy, the current charging power and the current vehicle energy consumption value, the current charging efficiency of the vehicle is calculated.

4. The method according to claim 2, characterized in that The target calculation strategy is a second slow charging calculation strategy; Calculating a current charging efficiency of the vehicle based on the target calculation strategy and the current vehicle energy consumption value includes: Obtaining a first actual energy consumption value of the vehicle for each accumulated first unit distance traveled, and a second actual energy consumption value for each accumulated second unit distance traveled, wherein the first unit distance is less than the second unit distance; determining a current vehicle energy consumption value of the vehicle according to the first actual energy consumption value and the second actual energy consumption value; The current charging efficiency of the vehicle is calculated according to the second slow charging calculation strategy and the current vehicle energy consumption value.

5. A device for notifying when charging is complete, characterized in that: include: An acquisition module is configured to acquire a current charging status signal, a current endurance type, and a current charging power of the vehicle during the charging process; a first determining module configured to determine a current charging efficiency of the vehicle based on the current charging state signal and the current cruising type, wherein the current charging efficiency indicates an amount of cruising range that can be increased per charging unit time; A second determining module is configured to determine the required mileage for the vehicle to travel from the current location to the target location; a calculation module configured to calculate the charging time required for the vehicle to travel from a current location to a target location based on the current charging efficiency and the required cruising range; a prompt module configured to output prompt information indicating when charging is to be completed based on the current charging efficiency and the required charging time; Before determining the required mileage for the vehicle to travel from the current location to the target location, the method further includes: Acquire historical driving data of the vehicle, the historical driving data including a historical driving trajectory set and historical driving time, the historical driving time including the driving stop time of the vehicle at each driving path node; predicting a target location that the user wants to drive to in the future based on the historical driving trajectory set; the historical driving trajectory set includes multiple historical driving trajectories, each of which includes multiple driving path nodes and node flow sequences; Based on the historical driving trajectory, the target location that the user wants to drive to in the future is predicted, including: Calculating the distance between the current position of the vehicle and each driving path node on each historical driving trajectory; Determining a target driving path node that is closest to the current position of the vehicle according to the distance value, and determining the historical driving trajectory where the target driving path node is located as a target historical driving trajectory; Determining the next driving path node of the target driving path node according to the node flow sequence of the target historical driving trajectory, and determining the next driving path node as the target position; Determining a target driving path node closest to the current position of the vehicle according to the distance value includes: Classifying the driving path nodes whose distance values from the current position of the vehicle fall within a preset distance range into a set of candidate driving path nodes, wherein the set of candidate driving path nodes includes at least one candidate driving path node; Obtaining the current time of the vehicle at the current location; A target driving path node is selected from the set of candidate driving path nodes according to the current time and the driving stop time of the candidate driving path nodes.

6. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 4 are implemented.

7. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 4 are implemented.

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