Camp charge and discharge control system and vehicle

Abstract

The invention provides a camp charging and discharging control system and a vehicle. The camp charging and discharging control system comprises a junction box, an in-vehicle charging seat, a vehicle-mounted charger, a charging control unit, an intelligent cabin area controller and a battery management unit, and the in-vehicle charging seat can be electrically connected with a slow charging seat through the junction box; the vehicle-mounted charger can be electrically connected with the slow charging seat through the junction box; the junction box can collect load power information of the in-vehicle charging seat; the charging control unit distributes charging power input by the slow charging seat to the in-vehicle charging seat and the vehicle-mounted charger according to a preset power distribution rule; the charging control unit detects a double-gun charging instruction from the battery management unit and controls the junction box relay to be closed, so that the in-vehicle charging seat can charge the vehicle-mounted charger through the junction box. According to the invention, the power utilization efficiency in the vehicle can be improved, the influence of power utilization in the vehicle on the electric quantity of the battery pack is reduced, charging type double-gun charging can be realized, and the power utilization efficiency of the vehicle is improved.

Description

Technical Field

[0001] The present invention relates to the field of automobiles, and in particular to a campsite charging and discharging control system and a vehicle. Background Art

[0002] With the continuous development of new energy vehicle technology, the charging and discharging technology of electric vehicles is becoming more and more mature. The charging and discharging function in the camp gives electric vehicles more use value, making them not only a means of transportation, but also a mobile energy center. It is especially suitable for people who like outdoor activities or need temporary power support. In the wild where there is no fixed power supply, the energy storage of electric vehicles can be used to power various electrical appliances in the camp, thereby improving the comfort of camping.

[0003] However, in the existing technology, all power is consumed by the battery pack due to the limited power of the battery pack, resulting in a rapid decrease in power. The efficiency of charging by a single circuit is low, resulting in the battery pack being in a low power state when the car is using power. Therefore, how to improve the charging and discharging efficiency has become an urgent issue to be solved in the relevant technical field. Summary of the invention

[0004] In view of the defects in the prior art, the purpose of the present invention is to provide a camp charging and discharging control system and vehicle, which aims to improve the efficiency of power consumption in the vehicle and reduce the impact of power consumption in the vehicle on the battery pack power, while realizing rechargeable dual-gun charging to improve the power efficiency of the vehicle.

[0005] In order to achieve the above-mentioned object of the invention, the present invention adopts the following technical solution:

[0006] According to a first aspect of the present invention, a campsite charging and discharging control system is provided, comprising a junction box, an in-vehicle charging seat, an on-board charger, a charging control unit, an intelligent cockpit domain controller, and a battery management unit, wherein:

[0007] The in-car charging seat can be electrically connected to the slow charging seat through a junction box;

[0008] The on-board charger can be electrically connected to the slow charging socket through a junction box;

[0009] The junction box can collect the load power information of the in-vehicle charging seat;

[0010] The charging control unit distributes the charging power input by the slow charging seat to the in-vehicle charging seat and the on-board charger according to a preset power distribution rule;

[0011] The charging control unit detects a dual-gun charging instruction from the battery management unit, and controls the junction box relay to be energized, so that the in-vehicle charging seat can charge the on-board charger through the junction box;

[0012] The battery management unit can detect the battery charging information of the on-board charger, and when the battery charging information meets the dual-gun charging condition, instruct the smart cockpit domain controller to send a dual-gun charging prompt message to the vehicle user.

[0013] Preferably, the dual-gun charging condition is: the charging current of the on-board charger is lower than the current required by the battery pack, or the charging power of the on-board charger is lower than the power required by the battery pack.

[0014] Preferably, the battery management unit limits the charging current of the on-board charger according to the maximum power that the in-vehicle charging base can withstand.

[0015] Preferably, the in-vehicle charging base is provided with a micro switch.

[0016] According to a second aspect of the present invention, there is provided a vehicle comprising a campsite charging and discharging control system as described in any one of the above.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] Through the cooperation between the modules, the present invention can improve the efficiency of power consumption in the vehicle, efficiently distribute the power input by the charging seat, reduce the impact of power consumption in the vehicle on the battery pack power, and realize rechargeable dual-gun charging, thereby improving the charging and discharging efficiency of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0020] Figure 1 Schematic diagram of the structure of the system described in the first embodiment.

[0021] The figure shows:

[0022] 1-junction box;

[0023] 2-In-car charging station;

[0024] 3- Car charger;

[0025] 4- Charging control unit;

[0026] 5-Smart cockpit domain controller;

[0027] 6-Battery management unit;

[0028] 7-Slow charging station. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0031] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, all directional indications in this application (such as up, down, left, right, front, back, bottom...) are only used to explain the relative position relationship, movement, etc. between the components in a certain specific posture (as shown in the drawings). If the specific posture changes, the directional indication will also change accordingly.

[0032] First Embodiment

[0033] This embodiment provides a campsite charging and discharging control system that can support slow charging piles to directly supply power or reversely charge battery packs through special structural design, and utilize dual-gun charging and load regulation mechanisms to significantly improve charging speed and efficiency. Figure 1 As shown, the system includes a junction box 1, an in-vehicle charging seat 2, an on-board charger 3, a charging control unit 4, an intelligent cockpit domain controller 5, and a battery management unit 6. The system provided in this embodiment can be connected to a charging pile (not shown in the figure) through a slow charging seat 7. The system provided in this embodiment can solve the following problems of the existing design: First, the current vehicle is connected to the battery pack through an on-board charger (OBC) and cannot directly draw power from an external charging pile; second, when the in-vehicle equipment uses electricity, it directly draws power from the battery pack, resulting in a rapid decrease in power; finally, the single-channel charging method results in a long charging time, which is difficult to cope with high load requirements.

[0034] Specifically, with respect to the connection relationship between the components in the system provided in this embodiment, the in-vehicle charging seat 2 can be electrically connected to the slow charging seat 7 through the junction box 1, so that it can directly supply power to the in-vehicle charging seat 2 without passing through the on-board charger 3 and the battery pack; at the same time, the on-board charger 3 can be electrically connected to the slow charging seat 7 through the junction box 1. In particular, with respect to the specific design of the junction box 1 in this system, it can collect the load power information of the in-vehicle charging seat 2, and at the same time transmit the state and current value of the discharge relay outside the vehicle, and the state and current value of the in-vehicle charger relay to the charging control unit 4.

[0035] As for the specific design of the charging control unit 4, it distributes the charging power input by the slow charging seat 7 to the in-car charging seat 2 and the on-board charger 3 according to the preset power distribution rules. Specifically, the preset power distribution rules are: after the charging control unit 4 reads the load power information of the in-car charging seat 2 collected by the junction box 1, it distributes the charging power according to the preset distribution ratio to meet the power requirements of the in-car charging seat 2 and the on-board charger 3, and realize the optimal use of the input power. Furthermore, the charging control unit 4 can also detect the working status of the on-board charger 3, the connection status of the charging gun CC, and the charging detection resistor, and enable the semi-external charging of the on-board charger 3 and the in-car charger; at the same time, the charging control unit 4 can also transmit the discharge function status and the discharge SOC setting status to the smart cockpit domain controller 5, and receive the discharge function switch request and the discharge SOC setting transmitted by the smart cockpit domain controller 5; the charging control unit 4 can also send a relay control instruction to the junction box 1.

[0036] Furthermore, the battery management unit 6 can detect the battery charging information of the on-board charger 3. When the battery charging information meets the dual-gun charging conditions, the intelligent cockpit domain controller 5 is instructed to send a dual-gun charging prompt message to the vehicle user. The dual-gun charging prompt message can be a visual graphic or text message, or a voice prompt message, or a combination of multiple prompt methods, which is not limited in this embodiment. In addition, the dual-gun charging prompt message can also be sent to the user's mobile terminal to prompt the user in multiple ways. Specifically, the dual-gun charging condition is: the charging current of the on-board charger is lower than the current required by the battery pack, or the charging power of the on-board charger is lower than the power required by the battery pack. The conditional design for turning on dual-gun charging can improve the accuracy of turning on dual-gun charging. The battery management unit 6 can also detect and transmit the temperature of the battery cell.

[0037] It should be understood that dual-gun charging has a better charging effect than single-gun charging. In the case of single-gun charging, the vehicle is connected to the charging pile through a single charging port for charging, and all electrical energy is transmitted to the battery pack through this port. The charging speed is slow and it is difficult to meet the power needs of multiple devices or needs at the same time; but in the case of dual-gun charging, the vehicle is charged through two independent charging ports at the same time, which can significantly shorten the charging time and flexibly allocate power under different load requirements.

[0038] In the system provided in this embodiment, the charging control unit 4 detects the dual-gun charging instruction from the battery management unit 6, controls the junction box 1 relay to be energized, so that the in-vehicle charging seat 2 can charge the on-board charger 3 through the junction box 1. Furthermore, the battery management unit 6 limits the charging current of the on-board charger 3 according to the maximum power that the in-vehicle charging seat 2 can withstand, so as to avoid safety hazards caused by power information mismatch. Furthermore, the in-vehicle charging seat 2 is provided with a micro switch, which can execute the preset leakage protection strategy, thereby enhancing the stability and safety of the system in implementation.

[0039] Second Embodiment

[0040] This embodiment provides a vehicle, which includes the campsite charging and discharging control system according to the first embodiment.

[0041] According to the vehicle of this embodiment, through the special design of the camp charging and discharging control system, single-gun charging and dual-gun charging of the vehicle can be realized, while optimizing the distribution efficiency of the input power of the slow charging seat, significantly improving the charging speed and efficiency of the vehicle.

[0042] It should be pointed out that the explanation of the implementation method and beneficial effects of the camp charging and discharging control system in the above-mentioned first embodiment is also applicable to the vehicle of this embodiment. In order to avoid redundancy, it will not be elaborated here.

[0043] The above describes the specific embodiments of the present invention. Based on the above description, relevant personnel can make various changes and modifications without departing from the technical concept of the present invention.

Claims

1. A camp charge and discharge control system, characterized in that: It includes a junction box, an in-vehicle charging station, an on-board charger, a charging control unit, an intelligent cockpit domain controller, and a battery management unit, among which: The in-car charging seat can be electrically connected to the slow charging seat through a junction box; The on-board charger can be electrically connected to the slow charging socket through a junction box; The junction box can collect the load power information of the in-vehicle charging seat; The charging control unit distributes the charging power input by the slow charging seat to the in-vehicle charging seat and the on-board charger according to a preset power distribution rule; The charging control unit detects a dual-gun charging instruction from the battery management unit, and controls the junction box relay to be energized, so that the in-vehicle charging seat can charge the on-board charger through the junction box; The battery management unit can detect the battery charging information of the on-board charger, and when the battery charging information meets the dual-gun charging condition, instruct the smart cockpit domain controller to send a dual-gun charging prompt message to the vehicle user.

2. A camp charge and discharge control system according to claim 1, characterized in that: The dual-gun charging condition is: the charging current of the on-board charger is lower than the current required by the battery pack, or the charging power of the on-board charger is lower than the power required by the battery pack.

3. A camp charge and discharge control system according to claim 1, characterized in that: The battery management unit limits the charging current of the vehicle charger according to the maximum power that the in-vehicle charging base can withstand.

4. A camp charge and discharge control system according to claim 1, characterized in that: The in-vehicle charging seat is provided with a micro switch.

5. A vehicle, characterized in that: It comprises a camp charging and discharging control system as described in any one of claims 1 to 4.

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