Charging pile charging system and method based on time electric quantity equalization analysis
The charging pile charging method based on time-power balance analysis solves the problem of imbalance between user and operator interests caused by power segmentation settlement in the existing technology, and realizes reasonable charging and accurate cost calculation under different power modes.
Patent Information
- Application Number
- CN202511453559.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-13
- Publication Date
- 2025-11-28
AI Technical Summary
The current charging station pricing method uses power-based segmented settlement, which results in users paying a specific price but not enjoying the corresponding charging needs during the long float charging phase, leading to an imbalance between operator revenue and user demand.
A charging method based on time-based power balance analysis is adopted. By obtaining the benchmark power and the benchmark unit price for charging, the multiplier coefficient and power premium fee are calculated, and the dynamic charging time is adjusted to balance the interests of users and operators.
It enables reasonable charging under different power modes, balances user charging experience and operator revenue, avoids inflated charges during the floating charging phase, and improves the accuracy and fairness of total charging costs.
Smart Images
Figure CN121019364A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the technical field of charging pile toll collection, specifically to a charging pile toll collection system and method based on time-based power balance analysis. Background Technology
[0002] The advantages of charging stations encompass a complete system, from individual benefits to social benefits and energy strategy. They are not merely "gas stations" for electric vehicles, but also key nodes connecting transportation, clean energy, and smart grids, serving as crucial infrastructure for driving a green revolution in transportation and the development of smart cities.
[0003] Currently, the charging fee settlement method used in the market is a power-segmented billing model, with different power segments having different prices. However, if a certain power is reached during a certain period, the entire charging unit price will be set based on that power segment, which undoubtedly increases the charging cost for users. In everyday life, batteries typically enter a float charging phase after being charged to more than 90% capacity. The actual charging power in this phase is low, and the above-mentioned charging model will still charge according to the highest power segment. Especially when the float charging is longer, the price difference is even greater. This leads to an imbalance between operator revenue and user charging demand, resulting in users paying a certain price but not being able to enjoy the corresponding charging needs. Therefore, it is necessary to design a charging pile charging system and method based on time-power balance analysis. Summary of the Invention
[0004] To address the aforementioned technical problems, the purpose of this invention is to overcome the issue that in the prior art, power segmentation calculations use the highest power of that segment for price settlement, which increases the user's charging cost. In particular, a long float charging phase can lead to users paying a specific price but not being able to enjoy the corresponding charging needs, resulting in an imbalance between operator revenue and user charging demand.
[0005] To achieve the above objectives, this invention provides a charging pile charging method based on time-based power balance analysis, the charging pile charging method comprising: Step S01: Obtain the reference power and the reference charging unit price per unit time corresponding to the reference power; Step S02: Obtain the user's charging amount, and obtain the predicted charging time based on the charging benchmark unit price per unit time and the user's charging amount; Step S03: Obtain the actual charging power for each unit time, calculate the rate factor based on the actual charging power and the reference power within the unit time, and calculate the charging cost per unit time. Step S04: Calculate the power premium fee based on the obtained multiplier and the base charging price per unit time, and calculate the total charging cost per unit time based on the power premium fee and the charging cost per unit time. Step S05: Calculate and adjust the remaining dynamic charging time based on the rate factor; Step S06: Stop charging when the total charging cost accumulated over a certain number of time units reaches the user's charging amount.
[0006] Preferably, before calculating the charging cost per unit time, the charging pile charging method further includes: Determine the difference between the actual charging power and the reference power per unit time; where; When the actual charging power per unit time is less than or equal to the reference power, the actual charging power per unit time is corrected to be equal to the reference power, and the rate factor is calculated based on the corrected actual charging power per unit time.
[0007] Preferably, the calculation formula used in the step of calculating the rate factor based on the actual charging power and the reference power per unit time is: K = Pi / P0; Where K is the rate factor; P0 is the reference power; and Pi is the actual charging power per unit time.
[0008] Preferably, the calculation formula used in adjusting the remaining dynamic charging time based on the multiplier factor is as follows: T = T` - t * K; Where T is the remaining dynamic charging time after correction; T' is the remaining dynamic charging time before correction; t is the unit time; and K is the rate factor.
[0009] Preferably, the calculation formula used in calculating the power premium fee based on the obtained multiplier and the benchmark charging price per unit time is as follows: L`=s*L*K; Where L` is the premium rate; s is the base charging price per unit time; L is the preset rate constant; and K is the rate coefficient.
[0010] S = t * L`; Where S is the power premium fee; t is the unit time; and L' is the premium rate.
[0011] Preferably, the calculation formula used in calculating the total charging cost per unit time based on the power premium fee and the charging cost per unit time is as follows: S 总 =S+s*t; Among them, S 总 t represents the total charging cost per unit time; S represents the power premium cost; t represents the unit time; and s represents the base charging price per unit time.
[0012] Preferably, after obtaining the actual charging power for each unit time, the method further includes data correction of the actual charging power for the unit time, including the following steps: When (Pi - Pi') / Pi ≥ G, Pi is corrected to Pi = Pi'. Where Pi is the actual charging power per unit time; Pi` is the actual charging power in the adjacent previous unit time; and G is the preset correction standard number.
[0013] A charging pile charging system based on time-based power balance analysis, the system comprising: The power detection module is used to collect the output power of the charging pile; The edge computing module calculates the total charging cost per unit time based on the acquired output power and calculates and adjusts the remaining dynamic charging time. The mobile phone interaction module is used by users to recharge and view the remaining dynamic charging time in real time; The wireless transmission module is used to transmit information between the mobile phone interaction module and the edge computing module.
[0014] According to the above technical solution, the charging pile charging system and method based on time-based power balance analysis provided by the present invention have the following advantages compared with the prior art: Firstly, when the actual charging power per unit time is less than or equal to the reference power, it is a low-power mode; when the actual charging power per unit time is greater than the reference power, it is a high-power mode. By charging a power premium fee, operators can obtain the revenue they need, and users can also enjoy the charging status of the high-power charging mode, thereby improving the user's charging experience and balancing the user's high-power charging needs with the operator's revenue needs. Secondly, during the float charging phase, charges will be calculated based on the baseline power to avoid inflated charges and balance the interests of operators and users.
[0015] Other features and advantages of the present invention will be described in detail in the following detailed description section; and all parts not covered in the present invention are the same as or can be implemented using the prior art. Attached Figure Description
[0016] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the following detailed description to explain the invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a flowchart illustrating the steps of a charging pile charging method based on time-based power balance analysis provided by the present invention. Detailed Implementation
[0017] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.
[0018] In this invention, unless otherwise stated, directional terms such as "upper," "lower," "inner," and "outer" in the terminology represent the orientation of the term in its normal use or are common terms understood by those skilled in the art, and should not be regarded as limitations on the term.
[0019] like Figure 1 As shown, a charging pile charging method based on time-based power balance analysis is described, the charging pile charging method comprising: Step S01: Obtain the reference power and the reference charging unit price per unit time corresponding to the reference power; Step S02: Obtain the user's charging amount, and obtain the predicted charging time based on the charging benchmark unit price per unit time and the user's charging amount; Step S03: Obtain the actual charging power for each unit time, calculate the rate factor based on the actual charging power and the reference power within the unit time, and calculate the charging cost per unit time. Step S04: Calculate the power premium fee based on the obtained multiplier and the base charging price per unit time, and calculate the total charging cost per unit time based on the power premium fee and the charging cost per unit time. Step S05: Calculate and adjust the remaining dynamic charging time based on the rate factor; Step S06: Stop charging when the total charging cost accumulated over a certain number of time units reaches the user's charging amount.
[0020] In the above technical solution, the reference power and the reference unit price for charging per unit time are preset values. The user's charging amount is within the reference unit price for charging per unit time, so the predicted charging time can be obtained. After a unit of time of charging, the remaining dynamic charging time can be obtained by subtracting the unit of time used for charging from the predicted charging time. The actual charging power within a unit of time can then be obtained, and the rate factor and the charging cost within a unit of time can be calculated. In order to balance the charging costs of users and the operating costs of operators, an additional power premium fee will be charged. The higher the actual charging power per unit time, the higher the power premium fee will be, thus obtaining the total charging cost per unit time. Because the actual charging power charged per unit time varies, the higher the actual charging power per unit time, the shorter the actual total charging time will be, since the user's charging amount is fixed. Therefore, it is necessary to calculate and adjust the remaining dynamic charging time according to the multiplier. After each unit time of charging, it is necessary to calculate and adjust the remaining dynamic charging time so that the user can view the remaining charging time. To improve the accuracy of calculating the total charging cost, the duration of the unit time can be shortened. In practice, the unit time is usually set to a few seconds or even less, thereby improving the accuracy of the total charging cost. The total charging cost is accumulated in real time over several unit time periods, and charging stops when the accumulated cost reaches the user's charging amount. When the actual charging power per unit time is less than or equal to the reference power, it is a low-power mode; when the actual charging power per unit time is greater than the reference power, it is a high-power mode. By charging a power premium fee, operators can obtain the revenue they need, and users can also enjoy the charging status of high-power charging mode, thereby improving the user's charging experience and balancing the user's high-power charging needs with the operator's revenue needs. During the float charging phase, the actual charging power per unit time is less than or equal to the base power, and the charge is calculated based on the base power. Because the charging speed is slow during the float charging phase, it will increase the time that the charging station is occupied, affecting other users' use and reducing the operator's revenue. Therefore, calculating the charge based on the base power can both compensate the operator to a certain extent and avoid excessive charges during the float charging phase, thus balancing the interests between users and operators.
[0021] In a preferred embodiment of the present invention, before calculating the charging cost per unit time, the charging pile charging method further includes: Determine the difference between the actual charging power and the reference power per unit time; where; When the actual charging power per unit time is less than or equal to the reference power, the actual charging power per unit time is corrected to be equal to the reference power, and the rate factor is calculated based on the corrected actual charging power per unit time.
[0022] In the above technical solution, when the actual charging power per unit time is less than or equal to the reference power, the actual charging power per unit time is corrected to the reference power, and the fee is charged based on the reference charging price per unit time, which means that it is in low power mode at this time. When the actual charging power per unit time is greater than the reference power, the calculation is based on the actual charging power per unit time, and a power premium fee will be charged. In other words, this is the high power mode.
[0023] In a preferred embodiment of the present invention, the calculation formula used in the step of calculating the rate factor based on the actual charging power and the reference power per unit time is as follows: K = Pi / P0; Where K is the rate factor; P0 is the reference power; and Pi is the actual charging power per unit time.
[0024] In the above technical solution, the higher the actual charging power per unit time, the larger the multiplier, and the shorter the remaining dynamic charging time, the higher the power premium fee charged.
[0025] In a preferred embodiment of the present invention, the calculation formula used in adjusting the remaining dynamic charging time based on the multiplier coefficient is as follows: T = T` - t * K; Where T is the remaining dynamic charging time after correction; T' is the remaining dynamic charging time before correction; t is the unit time; and K is the rate factor.
[0026] In the above technical solution, the change in actual charging power per unit time will affect the charging cost per unit time. Therefore, it is necessary to adjust the remaining dynamic charging time according to the change in actual charging power per unit time. The remaining dynamic charging time is adjusted after each unit time, and the multiplier coefficient of the previous unit time is substituted into the calculation. The higher the actual charging power per unit time, the shorter the corrected remaining dynamic charging time.
[0027] In a preferred embodiment of the present invention, the calculation formula used in calculating the power premium fee based on the obtained multiplier coefficient and the benchmark charging price per unit time is as follows: L`=s*L*K; Where L` is the premium rate; s is the base charging price per unit time; L is the preset rate constant; and K is the rate coefficient. S = t * L`; Where S is the power premium fee; t is the unit time; and L' is the premium rate.
[0028] In the above technical solution, an additional power premium fee is charged under high-power charging mode, which meets the need for full charging in a short time and also meets the operator's revenue needs. Different preset multiplier constants can be set according to actual needs and time periods. For example, the preset multiplier constant during peak charging periods is greater than that during off-peak charging periods. For example, the preset multiplier constant is 1 during off-peak charging periods and 1.1 during peak charging periods, balancing user needs and operator interests.
[0029] In a preferred embodiment of the present invention, the calculation formula used in calculating the total charging cost per unit time based on the power premium fee and the charging cost per unit time is as follows: S 总 =S+s*t; Among them, S 总 t represents the total charging cost per unit time; S represents the power premium cost; t represents the unit time; and s represents the base charging price per unit time.
[0030] In the above technical solution, if the actual charging power per unit time is less than or equal to the reference power, no power premium fee will be charged. When charging is based on the benchmark power, the total charging cost per unit time is equal to the unit time multiplied by the benchmark charging price per unit time.
[0031] In a preferred embodiment of the present invention, after obtaining the actual charging power for each unit time, the method further includes data correction of the actual charging power for each unit time, comprising the following steps: When (Pi - Pi') / Pi ≥ G, Pi is corrected to Pi = Pi'. Where Pi is the actual charging power per unit time; Pi` is the actual charging power in the adjacent previous unit time; and G is the preset correction standard number.
[0032] In the above technical solution, in order to prevent the actual charging power per unit time from being artificially high, it is compared with the actual charging power of the adjacent previous unit time. When the value obtained by the above formula is greater than or equal to the preset correction standard number, it is determined that the actual charging power per unit time is artificially high. Therefore, the actual charging power per unit time is corrected to be equal to the actual charging power of the adjacent previous unit time. The preset correction standard number can be modified according to the actual situation.
[0033] A charging pile charging system based on time-based power balance analysis, the system comprising: The power detection module is used to collect the output power of the charging pile; The edge computing module calculates the total charging cost per unit time and the dynamically adjusted charging duration based on the acquired output power. The mobile phone interaction module is used by users to recharge and view the remaining dynamic charging time in real time; The wireless transmission module is used to transmit information between the mobile phone interaction module and the edge computing module.
[0034] In the above technical solution, the user's charging amount is first credited through the mobile phone interaction module. The edge computing module obtains the predicted charging time based on the charging benchmark unit price per unit time and the user's charging amount. The power detection module can use the BL0939 metering chip to detect the charging power in real time. The edge computing module can use a microcontroller. The wireless transmission module can use the Quectel EC800G networking module to communicate with the cloud and transmit information between the mobile phone interaction module and the microcontroller module. The current power mode and the remaining dynamic charging time can be displayed in real time on the mobile phone interaction module. The user can know the specific charging status in real time, such as the current high power mode and the remaining dynamic charging time of 30 minutes. The benchmark power can also be viewed when the user places an order, ensuring the customer's right to know. The high-power mode can also be divided into multiple segments, with a fixed multiplier for each power range. For example, when the base power is 200W, the multiplier for 200-300W is fixed at 1.5, and the multiplier for 300-400W is fixed at 2. Different calculation methods can also be set for the multiplier. For example, a fixed calculation coefficient can be set for the entire high-power mode. The required multiplier is obtained by multiplying the actual charging power per unit time by the fixed calculation coefficient. The high-power mode can also be divided into multiple power segments, each with a fixed calculation coefficient of a different value. The required multiplier is obtained by multiplying the actual charging power per unit time by the fixed calculation coefficient. For example, the fixed calculation coefficient is 0.006 for 200-300W and 0.0057 for 300-400W. For example, if the actual charging power per unit time is 250W, the calculated multiplier is 1.5 using the fixed calculation coefficient of 0.006. If the actual charging power per unit time is 320W, the calculated multiplier is 1.82 using the fixed calculation coefficient of 0.0057.
[0035] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.
[0036] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.
[0037] Furthermore, various different embodiments of the present invention can be combined in any way, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed by the present invention.
Claims
1. A charging pile charging method based on time-based power balance analysis, characterized in that, The charging station charging method includes: Step S01: Obtain the reference power and the reference charging unit price per unit time corresponding to the reference power; Step S02: Obtain the user's charging amount, and obtain the predicted charging time based on the charging benchmark unit price per unit time and the user's charging amount; Step S03: Obtain the actual charging power for each unit time, calculate the rate factor based on the actual charging power and the reference power within the unit time, and calculate the charging cost per unit time. Step S04: Calculate the power premium fee based on the obtained multiplier and the base charging price per unit time, and calculate the total charging cost per unit time based on the power premium fee and the charging cost per unit time. Step S05: Calculate and adjust the remaining dynamic charging time based on the rate factor; Step S06: Stop charging when the total charging cost accumulated over a certain number of time units reaches the user's charging amount.
2. The charging pile charging method based on time-based power balance analysis according to claim 1, characterized in that, Before calculating the charging cost per unit time, the charging pile charging method also includes: Determine the difference between the actual charging power and the reference power per unit time; where; When the actual charging power per unit time is less than or equal to the reference power, the actual charging power per unit time is corrected to be equal to the reference power, and the rate factor is calculated based on the corrected actual charging power per unit time.
3. The charging pile charging method based on time-based power balance analysis according to claim 1, characterized in that, The calculation formula used in the step of calculating the rate factor based on the actual charging power and the reference power per unit time is as follows: K = Pi / P0; Where K is the rate factor; P0 is the reference power; and Pi is the actual charging power per unit time.
4. The charging pile charging method based on time-based power balance analysis according to claim 3, characterized in that, The calculation formula used in adjusting the remaining dynamic charging time based on the multiplier factor is as follows: T = T` - t * K; Where T is the remaining dynamic charging time after correction; T' is the remaining dynamic charging time before correction; t is the unit time; and K is the rate factor.
5. A charging pile charging method based on time-based power balance analysis according to claim 1, characterized in that, The calculation formula used in calculating the power premium fee based on the obtained multiplier and the benchmark charging price per unit time is as follows: L`=s*L*K; Where L` is the premium rate; s is the base charging price per unit time; L is the preset rate constant; and K is the rate coefficient. S = t * L`; Where S is the power premium fee; t is the unit time; and L' is the premium rate.
6. A charging pile charging method based on time-based power balance analysis according to claim 5, characterized in that, The formula used to calculate the total charging cost per unit time, based on the power premium fee and the charging cost per unit time, is as follows: S 总 =S+s*t; Among them, S 总 t represents the total charging cost per unit time; S represents the power premium cost; t represents the unit time; and s represents the base charging price per unit time.
7. The charging pile charging method based on time-based power balance analysis according to claim 1, characterized in that, After obtaining the actual charging power for each unit time, the process also includes data correction of the actual charging power within the unit time, including the following steps: When (Pi - Pi') / Pi ≥ G, Pi is corrected to Pi = Pi'. Where Pi is the actual charging power per unit time; Pi` is the actual charging power in the adjacent previous unit time; and G is the preset correction standard number.
8. A charging pile charging system based on time-based power balance analysis according to any one of claims 1-7, characterized in that, The system includes: The power detection module is used to collect the output power of the charging pile; The edge computing module calculates the total charging cost per unit time based on the acquired output power and calculates and adjusts the remaining dynamic charging time. The mobile phone interaction module is used by users to recharge and view the remaining dynamic charging time in real time; The wireless transmission module is used to transmit information between the mobile phone interaction module and the edge computing module.