A charging management method and charging management system for new energy vehicles

Abstract

The present invention relates to the field of new energy vehicles, and in particular to a charging management method and a charging management system for new energy vehicles, comprising: obtaining solar panel controller data to determine whether solar charging conditions are met; determining whether a vehicle is in a whole vehicle power-on state; predicting the remaining available time T1 of a power battery; predicting the remaining available time T2 of a storage battery; determining whether T1 is greater than T2, and if T1 is greater than T2, an energy domain management controller assigns a solar control panel to control a solar component to charge a storage battery; if T1 is less than T2, an energy domain management controller assigns a solar control panel to control a solar component to charge a power battery, and during travel, determining the available time of a power battery and a storage battery; if the available time of a storage battery is low, directly charging the storage battery to avoid charging the storage battery through a power battery, thereby reducing energy transmission loss and improving the vehicle's endurance.

Description

Technical Field

[0001] The present invention relates to the field of new energy vehicles, and in particular to a charging management method and a charging management system for new energy vehicles. Background Art

[0002] New energy vehicles use non-traditional fuels as their power source, mainly driven by electricity, hydrogen or other new energy sources, aiming to reduce the impact on the environment and improve energy efficiency. These vehicles not only represent a leap in technology, but also reflect humanity's pursuit of a sustainable future.

[0003] The most popular new energy vehicles are electric vehicles (EVs). They use the electricity stored in battery packs to drive motors, achieving zero-emission driving, greatly reducing the emission of air pollutants, and are of great significance to improving urban air quality. With the advancement of battery technology and the improvement of charging infrastructure, the range of electric vehicles continues to increase, and the convenience of charging has also been significantly enhanced. In addition to electric vehicles, new energy vehicles also include hybrid electric vehicles (HEVs) and plug-in hybrid electric vehicles (PHEVs). These models combine traditional fuel engines with electric motors and can intelligently switch power sources according to driving conditions to achieve energy conservation and emission reduction.

[0004] However, existing drivers of new energy vehicles have range anxiety and need to charge their vehicles frequently, which affects their efficiency. Summary of the invention

[0005] The purpose of the present invention is to provide a charging management method and a charging management system for new energy vehicles, aiming to improve the problem that drivers of existing new energy vehicles have mileage anxiety and need to charge the vehicles frequently, which affects the efficiency of use.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A charging management method for a new energy vehicle, comprising:

[0008] S1, obtain the solar panel controller data, determine whether the solar charging conditions are met, if so, execute S11, if not, end the process;

[0009] S11, determine whether the vehicle is in a fully powered-on state, if so, execute S12, if not, execute S3;

[0010] S12, obtain vehicle endurance information, identify whether there is a charging reminder, if so, execute S2, if not, execute S3;

[0011] S2, execute the emergency solar charging mode, obtain the power battery SOC1 value and power battery load information, and predict the remaining usable time T1 of the power battery; obtain the battery SOC2 value and battery load information, and predict the remaining usable time T2 of the battery; determine whether T1 is greater than T2, if so, execute S21, if not, execute S22;

[0012] S21, the energy domain management controller allocates the solar control panel to control the solar module to charge the battery. After the charging reaches a predetermined time, return to S2;

[0013] S22, the energy domain management controller allocates the solar control panel to control the solar module to charge the power battery. After the charging reaches a predetermined time, return to S2;

[0014] S3. Execute the preset solar charging mode.

[0015] Furthermore, the solar panel controller data is obtained to identify the cumulative time that the light intensity per unit time is greater than the preset value. If the cumulative time is greater than the preset time, it is determined that the charging condition is met, otherwise, it is determined that the charging condition is not met.

[0016] Furthermore, the preset solar charging mode includes:

[0017] S31, obtaining the SOC1 value of the power battery, and determining whether the SOC1 is greater than 95%, if so, executing S32; if not, executing S33;

[0018] S32, the solar panel charges the power battery, and returns to S31 to monitor the SOC1 value of the power battery;

[0019] S33, obtaining the battery SOC2 value, and determining whether SOC2 is less than or equal to 80%, if so, executing S34;

[0020] If not, the process ends;

[0021] S34, the solar control panel charges the power battery and returns to S33 to monitor the battery SOC2 value.

[0022] Furthermore, the preset solar charging mode further includes before S31:

[0023] S150, determine whether wireless charging is enabled, if so, execute S1501, if not, execute S31;

[0024] S1501, determine whether W1 is greater than W2, W1 is the net power output by the solar panel, W2 is the power required for wireless charging, if so, execute S1502, if not, execute S31;

[0025] S1502, determine whether W1 is less than aW2, a is a threshold greater than 1, if not, execute S31; if yes, the solar panel supplies power to the wireless charging device, and monitors in real time whether the wireless charging is enabled, if yes, the solar panel continues to supply power to the wireless charging, if not, execute S31.

[0026] Furthermore, the solar module is electrically connected to the storage battery and the wireless charging device through the PPTC, the solar module is electrically connected to the power battery, and the power battery is electrically connected to the storage battery through the inverter.

[0027] Furthermore, the battery is a lead-acid battery pack.

[0028] Furthermore, the wireless charging device includes a control board and a transmitting coil electrically connected to the control board, the control board is electrically connected to the power output end of the battery and the solar panel, and the transmitting coil wirelessly charges the electrical appliances in the vehicle.

[0029] Furthermore, the battery is electrically connected to a battery control board, and a charge and discharge protection unit is provided on the battery control board to perform charge and discharge protection on the battery and detect overvoltage, undervoltage, overcurrent and overtemperature conditions of each single cell.

[0030] To achieve the above object, the present invention adopts the following technical solutions:

[0031] A charging management system applies the charging management method for new energy vehicles.

[0032] After adopting the above technical solution, the present invention has the following advantages compared with the background technology:

[0033] 1. During driving, the available time of the power battery and the storage battery is determined by the power battery SOC1 value and load information as well as the storage battery SOC2 value and load information; if the available time of the power battery is low, the power battery is directly charged to improve the vehicle's endurance; if the available time of the storage battery is low, the storage battery is directly charged to avoid charging the storage battery through the power battery, reduce energy transmission loss, and further improve the vehicle's endurance.

[0034] 2. First, monitor the SOC1 value of the power battery to ensure that the power battery is in a high power state, so that the storage capacity is feeding. Then monitor the SOC2 value of the storage battery to ensure that the storage battery can stably supply power to the electrical appliances in the car, reduce the power transmission from the power battery to the storage battery, and reduce the transmission loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a step diagram of the charging management method for new energy vehicles according to the present invention;

[0036] Figure 2 This is a block diagram of the first step of the preset solar charging mode of the charging management method for new energy vehicles of the present invention;

[0037] Figure 3 This is a block diagram of the first step of the preset solar charging mode of the charging management method for new energy vehicles of the present invention;

[0038] Figure 4 This is a block diagram of the charging management method for new energy vehicles described in the present invention. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0040] In addition, it should be noted that the terms "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element of the present invention must have a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0041] When an element is referred to as being “fixed to” or “disposed on” or “provided on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0042] Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances. Example

[0043] Please refer to Figure 1-4 As shown, this embodiment provides a charging management method for a new energy vehicle, including:

[0044] S1, obtain solar panel controller data, determine whether solar charging conditions are met, if yes, execute S11, if no, end the process; in this embodiment, by obtaining solar panel controller data, identify the cumulative time that the light intensity per unit time is greater than the preset value, if the cumulative time is greater than the preset time, it is determined that the charging conditions are met, otherwise, it is determined that the charging conditions are not met. The charging conditions are judged to avoid mistakenly starting the solar charging program, causing unnecessary waste of electricity, and affecting the vehicle's endurance.

[0045] S11. Determine whether the vehicle is in a fully powered-on state. If so, execute S12; if not, execute S3. Determine whether the vehicle is in a high-voltage powered-on starting state to facilitate the advancement of subsequent procedures.

[0046] S12, obtain vehicle endurance information, identify whether there is a charging reminder, if so, execute S2, if not, execute S3;

[0047] S2, execute the emergency solar charging mode, obtain the power battery SOC1 value and power battery load information, and predict the remaining usable time T1 of the power battery; obtain the battery SOC2 value and battery load information, and predict the remaining usable time T2 of the battery; determine whether T1 is greater than T2, if so, execute S21, if not, execute S22;

[0048] S21, the energy domain management controller allocates the solar control panel to control the solar module to charge the battery. After the charging reaches a predetermined time, return to S2;

[0049] S22, the energy domain management controller allocates the solar control panel to control the solar module to charge the power battery, and returns to S2 after the charging reaches the predetermined time; that is, during the driving process, the available time of the power battery and the storage battery is judged by the power battery SOC1 value and load information as well as the storage battery SOC2 value and load information; if the available time of the power battery is low, the power battery is directly charged to improve the vehicle's endurance; if the available time of the storage battery is low, the storage battery is directly charged to avoid charging the storage battery through the power battery, thereby reducing energy transmission loss and further improving the vehicle's endurance.

[0050] S3. Execute the preset solar charging mode.

[0051] Please refer to Figure 2 As shown, further, the preset solar charging mode includes:

[0052] S31, obtaining the SOC1 value of the power battery, and determining whether the SOC1 is greater than 95%, if so, executing S32; if not, executing S33;

[0053] S32, the solar panel charges the power battery, and returns to S31 to monitor the SOC1 value of the power battery;

[0054] S33, obtaining the battery SOC2 value, determining whether SOC2 is less than or equal to 80%, if so, executing S34; if not, the process ends;

[0055] S34, the solar control panel charges the power battery and returns to S33 to monitor the battery SOC2 value.

[0056] First, the SOC1 value of the power battery is monitored to ensure that the power battery is in a high power state, so that the storage capacity is feeding. Then the SOC2 value of the storage battery is monitored to ensure that the storage battery can stably supply power to the electrical appliances in the car, reduce the power transmission from the power battery to the storage battery, and reduce the transmission loss.

[0057] Please refer to Figure 3 As shown, further, the preset solar charging mode before S31 also includes:

[0058] S150, determine whether wireless charging is enabled, if so, execute S1501, if not, execute S31; in the preset solar charging mode, the vehicle is in a stagnant state, first determine whether wireless charging is enabled to meet the wireless charging needs in the vehicle.

[0059] S1501, determine whether W1 is greater than W2, W1 is the net power output by the solar panel, W2 is the power required for wireless charging, if so, execute S1502, if not, execute S31;

[0060] S1502, determine whether W1 is less than aW2, a is a threshold greater than 1, if not, execute S31; if yes, the solar panel supplies power to the wireless charging device, and monitors in real time whether the wireless charging is enabled, if yes, the solar panel continues to supply power to the wireless charging, if not, execute S31. During the wireless charging process, the solar panel monitors the wireless charging status of the internal electrical appliances in real time, and when the internal electrical appliances cancel the wireless charging, promptly perform step S31 to charge the power battery, thereby improving the charging efficiency of the power battery.

[0061] The net power output by the solar panel is compared with the power required for wireless charging. If the power required for wireless charging is larger, it indicates that the solar panel cannot meet the power requirement of wireless charging, and the battery directly powers the wireless charging device.

[0062] Wherein, a is the economic threshold value. In this embodiment, a is a positive real number greater than or equal to 1. If the net output power of the solar panel is large, it indicates that the net output power of the solar panel meets the power required for wireless charging. At this time, the relationship between W1 and aW2 is judged to avoid excessive waste of solar energy caused by W1 being too large than W2, and low energy utilization. For example, if the power required for wireless charging is W2=10W, and the economic threshold a=2, the net power output of the solar panel is W1=15W. At this time, the solar panel supplies power to the wireless charging device, and there is only a waste of 5W. If the net power output of the solar panel is W1=30W, there is a waste of 20W of power. In this case, the power battery is directly charged, and the wireless charging device is powered by the storage battery to improve energy utilization.

[0063] Please refer to Figure 4 As shown, in this embodiment, the solar panel is electrically connected to the battery and the wireless charging device through the PPTC, the solar panel is electrically connected to the power battery, and the power battery is electrically connected to the battery through the inverter. The PPTC is a self-recovering fuse that protects the power supply process of the solar panel. In this embodiment, the battery is a lead-acid battery pack.

[0064] In this embodiment, the wireless charging device includes a control panel and a transmitting coil electrically connected to the control panel, the control panel is electrically connected to the power output terminal of the battery and the solar panel, and the transmitting coil wirelessly charges the electrical appliances in the vehicle, effectively reducing the interference of the wiring harness in the vehicle, and the solar energy collection control panel controls the solar cell array to power the wireless charging control panel, reducing the output of the battery pack and increasing the service life of the battery pack.

[0065] In this embodiment, the battery is electrically connected to a battery control board, and a charge and discharge protection unit is provided on the battery control board to perform charge and discharge protection on the battery and detect the overvoltage, undervoltage, overcurrent and overtemperature conditions of each single cell. In this embodiment, the charge and discharge protection unit is a conventional charge and discharge protection unit, which will not be described in detail here.

[0066] This embodiment also discloses a charging management system, which applies the above-mentioned charging management method for new energy vehicles.

[0067] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A charging management method for a new energy vehicle, characterized in that: include: S1, obtain the solar panel controller data, determine whether the solar charging conditions are met, if so, execute S11, if not, end the process; S11, determine whether the vehicle is in a fully powered-on state, if so, execute S12, if not, execute S3; S12, obtain vehicle endurance information, identify whether there is a charging reminder, if so, execute S2, if not, execute S3; S2, execute the emergency solar charging mode, obtain the power battery SOC1 value and power battery load information, and predict the remaining usable time T1 of the power battery; obtain the battery SOC2 value and battery load information, and predict the remaining usable time T2 of the battery; determine whether T1 is greater than T2, if so, execute S21, if not, execute S22; S21, the energy domain management controller allocates the solar control panel to control the solar module to charge the battery. After the charging reaches a predetermined time, return to S2; S22, the energy domain management controller allocates the solar control panel to control the solar module to charge the power battery. After the charging reaches a predetermined time, return to S2; S3, executing the preset solar charging mode; The preset solar charging mode includes: S31, obtaining the SOC1 value of the power battery, and determining whether the SOC1 is greater than 95%, if so, executing S32; if not, executing S33; S32, the solar panel charges the power battery, and returns to S31 to monitor the SOC1 value of the power battery; S33, obtaining the battery SOC2 value, and determining whether SOC2 is less than or equal to 80%, if so, executing S34; If not, the process ends; S34, the solar control panel charges the power battery and returns to S33 to monitor the battery SOC2 value; The preset solar charging mode further includes before S31: S150, determine whether wireless charging is enabled, if so, execute S1501, if not, execute S31; S1501, determine whether W1 is greater than W2, W1 is the net power output by the solar panel, W2 is the power required for wireless charging, if so, execute S1502, if not, execute S31; S1502, determine whether W1 is less than aW2, a is a threshold greater than 1, if not, execute S31; if yes, the solar panel supplies power to the wireless charging device, and monitors in real time whether the wireless charging is enabled, if yes, the solar panel continues to supply power to the wireless charging, if not, execute S31.

2. The charging management method for new energy vehicles according to claim 1, characterized in that: The solar panel controller data is obtained to identify the cumulative time that the light intensity per unit time is greater than the preset value. If the cumulative time is greater than the preset time, it is determined that the charging conditions are met, otherwise, it is determined that the charging conditions are not met.

3. The charging management method for new energy vehicles according to claim 1, characterized in that: The solar module is electrically connected to the storage battery and the wireless charging device through the PPTC, the solar module is electrically connected to the power battery, and the power battery is electrically connected to the storage battery through the inverter.

4. The charging management method for new energy vehicles according to claim 3 is characterized in that: The storage battery is a lead-acid battery pack.

5. The charging management method for new energy vehicles according to claim 3, characterized in that: The wireless charging device includes a control panel and a transmitting coil electrically connected to the control panel, wherein the control panel is electrically connected to a battery and a power output terminal of a solar panel, and the transmitting coil wirelessly charges electrical appliances in the vehicle.

6. The charging management method for new energy vehicles according to claim 1, characterized in that: The battery is electrically connected to a battery control board, and a charge and discharge protection unit is arranged on the battery control board to perform charge and discharge protection on the battery and detect overvoltage, undervoltage, overcurrent and overtemperature conditions of each single cell.

7. A charging management system, characterized in that: A charging management method for a new energy vehicle according to any one of claims 1 to 6 is applied.

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