Dual-mode power generation RV charging system

Abstract

The present invention provides a dual-mode power generation and charging system for RVs, comprising a 48V generator, a DC power distribution unit, a DC charging unit, a starter battery, a 12V generator, and a control component. The 48V generator is connected to the RV engine and transmits power to the DC power distribution unit. The DC power distribution unit is configured to distribute DC power. The DC power distribution unit and the DC charging unit are interconnected. The DC charging unit is configured to convert 48V DC power into 12V DC power. Both the DC charging unit and the 12V generator can supply power to the starter battery, and the DC charging unit also supplies power to the control component. The present invention achieves dual-mode power generation by providing a 48V generator and a 12V generator. The DC charging unit is configured to convert 48V DC power into 12V DC power, reducing the higher voltage to be suitable for low-voltage devices, thereby providing a safe and efficient charging solution for RVs.

Description

Technical Field

[0001] The invention relates to a dual-mode power generation and charging system for a recreational vehicle, and belongs to the field of recreational vehicle equipment. Background Art

[0002] Currently, existing RVs are mainly charged by connecting to AC power at high power, which is generally 2-3 kW. When the vehicle is in motion, the onboard auxiliary energy storage battery is generally charged through the original vehicle generator (DC12V / 150A), which can generally provide a charging power of ≤1 kW. This solution is inefficient and slow, and cannot meet users' expectations for efficient charging.

[0003] However, if the charging power is increased, the current will be too large, which can easily lead to safety problems.

[0004] In view of this, it is indeed necessary to propose a new dual-mode power generation RV charging system to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a dual-mode power generation RV charging system to provide a safe and efficient charging solution for RVs.

[0006] To achieve the above objectives, the present invention provides a dual-mode power generation and charging system for RVs, comprising a 48V generator, a DC power distribution unit, a DC charging unit, a starting battery, a 12V generator, and a control component.

[0007] The 48V generator is a BSG motor with a P0 architecture, which is connected to the RV engine and transmits the generated power to the DC power distribution unit. The DC power distribution unit is configured to distribute DC power.

[0008] The DC power distribution unit and the DC charging unit are connected to each other, and the DC charging unit is configured to convert 48V DC power into 12V DC power.

[0009] The starting battery can be supplied with power by the DC charging unit and the 12V generator.

[0010] The DC charging unit also supplies power to the control component.

[0011] As a further improvement of the present invention, the dual-mode RV charging system also includes a charging inverter. The DC power distribution unit is connected to the charging inverter, and the charging inverter is configured to convert AC power and DC power into each other.

[0012] As a further improvement of the present invention, the dual-mode power generation RV charging system also includes a solar panel, and the electric energy generated by the solar panel is transmitted to the charging inverter.

[0013] As a further improvement of the present invention, the dual-mode power generation RV charging system also includes an AC power distribution unit, and the AC power distribution unit and the charging inverter are interconnected and configured to distribute AC power.

[0014] As a further improvement of the present invention, the AC power distribution unit inputs power from the mains charging port and supplies power to the AC loads in the vehicle.

[0015] As a further improvement of the present invention, the dual-mode power generation RV charging system also includes an energy storage component, and the DC power distribution unit and the energy storage component are interconnected.

[0016] As a further improvement of the present invention, the dual-mode power generation RV charging system also includes a fuse component. The electric energy transmitted by the DC charging unit is transmitted to the control component and the RV's constant power load through the fuse component. The fuse component is configured to disconnect when the voltage and / or current is too large.

[0017] As a further improvement of the present invention, the dual-mode power generation RV charging system also includes an air conditioner, which is controlled by the control component, and the DC power distribution unit supplies power to the air conditioner.

[0018] As a further improvement of the present invention, the control component supplies power to the controlled load and the switch, and is in signal communication with the switch.

[0019] As a further improvement of the present invention, the control component receives a signal from at least one sensor.

[0020] The beneficial effects of the present invention are: the dual-mode power generation RV charging system of the present invention realizes dual-mode power generation by setting a 48V generator and a 12V generator, and is configured to convert 48V DC power into 12V DC power by setting a DC charging unit, thereby reducing the higher voltage so that it is suitable for low-voltage equipment, providing a safe and efficient charging solution for RVs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the architecture of the dual-mode power generation RV charging system of the present invention.

[0022] Figure 2 It is a schematic diagram of the dual-mode power generation RV charging system of the present invention. DETAILED DESCRIPTION

[0023] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] like Figure 1 and Figure 2 As shown, the present invention discloses a dual-mode power generation RV charging system 100, including a 48V generator 1, a DC power distribution unit 2, an energy storage component 3, a DC charging unit 4, a 12V generator 5, a starting battery 6, a fuse component 7, a control component 8, an air conditioner 9, a charging inverter 10, a solar panel 11, and an AC power distribution unit 12. The dual-mode power generation RV charging system 100 realizes dual-mode power generation by simultaneously arranging a 48V generator 1 and a 12V generator 5 in the RV, which is faster and safer.

[0025] The 48V generator 1 is the main power generation component of the dual-mode RV charging system 100, used to generate electricity in the RV system. The power generated by the 48V generator 1 is transmitted to the DC power distribution unit 2.

[0026] Furthermore, the 48V generator 1 accepts the intelligent control of the vehicle controller, obtains information from the engine management system through the vehicle controller, that is, after obtaining information from the battery sensor and the engine, changes the power generation strategy of the 48V generator 1, thereby intelligently adjusting the current and voltage of the generated power.

[0027] Furthermore, the 48V generator 1 is a BSG motor that adopts a P0 architecture and is softly connected to the engine crankshaft via a belt.

[0028] The DC power distribution unit 2 is used to distribute the current generated by the 48V generator 1 to other components. The DC power generated by the 48V generator 1 is stabilized by the DC power distribution unit 2 and then transmitted to different other components.

[0029] The DC power distribution unit 2 receives power from the 48V generator 1 , transmits power to the DC charging unit 4 and the air conditioner 9 , and is interconnected with the energy storage component 3 .

[0030] The energy storage component 3 is a lithium battery pack, which is connected to the DC power distribution unit 2 and is used to store 48V electrical energy. At the same time, the electrical energy stored in the energy storage component 3 can be transmitted back to the DC power distribution unit 2 for redistribution and transmission when needed.

[0031] The DC charging unit 4 is used to receive the 48V voltage transmitted by the DC power distribution unit 2 and step it down, converting the 48V DC power into 12V DC power, so that it can be transmitted to other devices in the RV that use 12V voltage.

[0032] The electric energy after the voltage reduction by the DC charging unit 4 is transmitted to the starting battery 6 .

[0033] At the same time, the electric energy after the voltage reduction by the DC charging unit 4 will be transmitted to the control component 8 through the insurance component 7 to supply power.

[0034] Two generators are provided in the dual-mode RV charging system 100, namely, a 12V generator 5 in addition to a 48V generator 1. The electric energy generated by the 48V generator 1 is the main electric energy of the RV and has various uses, while the electric energy generated by the 12V generator 5 only needs to be supplied to the starting battery 6.

[0035] The starting battery 6 is a conventional arrangement in the vehicle system and is used to start the vehicle. The electric energy of the starting battery 6 is provided by both the DC charging unit 4 and the 12V generator 5.

[0036] Fuse assembly 7 is a fuse box used to protect the circuit by disconnecting it when voltage and / or current are excessive. The electrical energy output from DC charging unit 4 is partially supplied to starting battery 6, while the remaining energy is transferred to fuse assembly 6, which then passes through it and is then delivered to the RV's mains loads and control assembly 8.

[0037] The control component 8 is used to control various devices on the RV.

[0038] Furthermore, the control component 8 and the switch are connected to each other by signals, transmitting and receiving signals to each other to realize opening and closing, and the control component 8 provides power to the switch.

[0039] Furthermore, the control component 8 receives signals from a number of sensors in the RV, including at least one temperature sensor.

[0040] Furthermore, the control component 8 provides electrical energy to a number of controlled loads in the RV that are controlled by the control component 8 .

[0041] Furthermore, the control assembly 8 is also connected to a control panel, which provides power to the control panel and sends signals to control the control panel. The control panel is used to display the status of the air conditioner 9 and to control and change the status of the air conditioner 9.

[0042] The air conditioner 9 receives the electric energy transmitted by the DC power distribution unit 2 to operate, and changes its state according to the signal control of the control panel.

[0043] The integrated charging inverter 10 is connected to the DC power distribution unit 2 and the AC power distribution unit 12. It has the function of inputting and outputting both DC and AC power, and is configured to convert AC power into DC power and vice versa. The power source of an RV is diverse, including DC power generated by a generator and AC power input through charging ports. To facilitate the use of different power sources, the integrated charging inverter 10 is provided to convert AC power into DC power and vice versa, allowing different devices to use different forms of power.

[0044] The solar panel 11 is also one of the sources of electricity in the RV. It generates electricity through solar energy, and the generated electricity is also input into the charging inverter 10, converted by the charging inverter 10, and output to the DC power distribution unit 2 and / or the AC power distribution unit 12.

[0045] The AC power distribution unit 12 is connected to the charging and inverter integrated machine 10 and is configured to distribute AC power.

[0046] Furthermore, the AC power distribution unit 12 receives power from the mains charging port and supplies power to the AC loads in the vehicle.

[0047] In existing RVs, high-power charging is mainly achieved through external mains electricity, and this charging power is generally 2-3Kw. When the vehicle is in motion, the on-board auxiliary energy storage battery is generally charged through the original vehicle generator (DC12V / 150A), which can provide a charging power of ≤1KW. This solution is inefficient and slow, and cannot meet the user's expectations for efficient charging. In order to improve charging efficiency, a 48V generator 1 is used in this application. The voltage of the electric energy emitted by the 48V generator 1 is 48V. Compared with the traditional 12V generator, the high-power charging under driving charging conditions is used to raise the voltage. Under the same power output, the charging current is only 1 / 4 of that of the 12V generator, reducing the risk of thermal runaway during system operation, improving system operation safety, and at the same time leaving a margin for a significant increase in charging power.

[0048] In this application, the 48V generator 1 is a BSG motor with a P0 architecture, which is intelligently controlled by the vehicle controller. This setting enables the 48V generator 1 to accept idle speed increase. Under the idling condition of the RV, the speed is increased to above 1200rpm, and a power output of about 3Kw can be obtained, achieving the same charging efficiency as an external AC power supply.

[0049] Furthermore, in this application, a power generation capacity of 3Kw can be obtained under idle conditions (after the speed is increased). During the driving of the RV, the power generation capacity can reach a maximum of 6Kw, which exceeds the power of the existing RV external AC charging and provides users with efficient and fast charging support.

[0050] Engine speed / generator power output table [based on bench testing]

[0051]

[0052]

[0053] It can be seen from the experimental data that when the engine speed reaches 3000rpm, more than 6Kw of power generation can be obtained.

[0054] At the same time, in this application, the 48V generator 1 and the energy storage component 3 are on the same power supply platform, and the electric energy output by the 48V generator 1 can be directly output to charge the energy storage component 3 without energy conversion loss.

[0055] In this application, the charging / power consumption differentiated power supply platform charges the energy storage component 3 with 48V electricity, and the low-voltage electrical appliances reduce the DC48V to DC12V through the DC charging unit 4 so that they can be used normally.

[0056] To sum up, the dual-mode power generation RV charging system 100 of the present invention realizes dual-mode power generation by setting up a 48V generator 1 and a 12V generator 5. By setting up a DC charging unit 4, it is configured to convert 48V DC power into 12V DC power, reducing the higher voltage so that it is suitable for low-voltage equipment, providing a safe and efficient charging solution for RVs.

[0057] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A dual-mode power generation RV charging system, characterized by: Including 48V generator, DC power distribution unit, DC charging unit, starting battery, 12V generator, control components, The 48V generator is a BSG motor with a P0 architecture, which is connected to the RV engine. When the RV is idling, it can increase the speed to more than 1200 rpm, and then transmit the generated power to the DC power distribution unit. The DC power distribution unit is configured to distribute DC power. The DC power distribution unit and the DC charging unit are connected to each other, and the DC charging unit is configured to convert 48V DC power into 12V DC power. The starting battery can be supplied with power by the DC charging unit and the 12V generator. The DC charging unit also supplies power to the control component.

2. The dual-mode power generation RV charging system according to claim 1 is characterized in that: The dual-mode RV charging system also includes a charging inverter. The DC power distribution unit is connected to the charging inverter. The charging inverter is configured to convert alternating current (AC) and direct current (DC) into each other.

3. The dual-mode power generation RV charging system according to claim 2 is characterized in that: The dual-mode power generation RV charging system also includes a solar panel, and the electric energy generated by the solar panel is transmitted to the charging inverter.

4. The dual-mode power generation RV charging system according to claim 3 is characterized by: The dual-mode power generation RV charging system also includes an AC power distribution unit, which is interconnected with the charging inverter and configured to distribute AC power.

5. The dual-mode power generation RV charging system according to claim 4 is characterized in that: The AC power distribution unit receives power from the mains charging port and supplies power to the AC loads in the vehicle.

6. The dual-mode power generation RV charging system according to claim 1, characterized in that: The dual-mode power generation RV charging system also includes an energy storage component, and the DC power distribution unit and the energy storage component are interconnected.

7. The dual-mode power generation RV charging system according to claim 1, characterized in that: The dual-mode power generation RV charging system also includes a fuse component. The electric energy transmitted by the DC charging unit is transmitted to the control component and the RV's constant power load through the fuse component. The fuse component is configured to disconnect when the voltage and / or current is too large.

8. The dual-mode power generation RV charging system according to claim 1 is characterized in that: The dual-mode power generation RV charging system also includes an air conditioner, which is controlled by the control component, and the DC power distribution unit supplies power to the air conditioner.

9. The dual-mode power generation RV charging system according to claim 8, characterized in that: The control component supplies power to the controlled load and the switch, and is in signal communication with the switch.

10. The dual-mode power generation RV charging system according to claim 9, characterized in that: The control component receives a signal from at least one sensor.

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