On-vehicle charging system, charging control method and vehicle

Abstract

The present application discloses an on-vehicle charging system, a charging control method and a vehicle. The on-vehicle charging system includes a control circuit, a wired charging circuit, a wireless charging circuit and a power processing circuit, wherein the control circuit is connected to the wired charging circuit, the wireless charging circuit and the power processing circuit respectively, the wired charging circuit is connected to the power processing circuit, the wireless charging circuit is connected to the power processing circuit, the power processing circuit is used to stabilize and filter the first electrical signal according to the second charging control signal, and to perform current conversion, voltage stabilization and filtering on the second electrical signal according to the fourth charging control signal; in this way, the control circuit and the power processing circuit of the wired charging circuit and the wireless charging circuit are integrated, which is beneficial to improving the integration and intelligence of the on-vehicle charging system, reducing the weight of the vehicle body and the cost of manufacturing the vehicle, and is beneficial to error checking, updating and upgrading of the on-vehicle charging system on the other hand.

Description

Technical Field

[0001] The present application relates to the field of electronic circuit technology, and in particular to a vehicle-mounted charging system, a charging control method, and a vehicle. Background Art

[0002] At present, there are two main ways to charge new energy vehicles: wired charging and wireless charging. In vehicles that support both wireless charging and wired charging, two charging systems need to be configured. The integration level of the on-board charging system is low, resulting in a larger on-board charging system and higher vehicle production costs. Summary of the invention

[0003] The embodiment of the present application provides a vehicle-mounted charging system, which is beneficial to improving the integration and intelligence level of the vehicle-mounted charging system and reducing the vehicle body weight and vehicle manufacturing cost.

[0004] A first aspect of an embodiment of the present application provides a vehicle-mounted charging system for a vehicle, the vehicle-mounted charging system comprising: a control circuit, a wired charging circuit, a wireless charging circuit and a power processing circuit, wherein:

[0005] The power processing circuit includes a first converter and a transformer, one end of the first converter is connected to the wired charging circuit and the wireless charging circuit, the other end of the first converter is connected to the input end of the transformer, and the first converter is used to input a conversion voltage to the transformer;

[0006] The control circuit is connected to the wired charging circuit, the wireless charging circuit and the power processing circuit respectively, and the control circuit is used to send a first charging control signal to the wired charging circuit and a second charging control signal to the power processing circuit, and / or send a third charging control signal to the wireless charging circuit and a fourth charging control signal to the power processing circuit;

[0007] The wired charging circuit is connected to the first converter, the wired charging circuit is used to send a first electrical signal to the first converter according to the first charging control signal, and the power processing circuit is used to stabilize and filter the first electrical signal according to the second charging control signal;

[0008] The wireless charging circuit is connected to the first converter, and is used to send a second electrical signal to the first converter according to the third charging control signal. The power processing circuit is used to perform current conversion, voltage stabilization and filtering on the second electrical signal according to the fourth charging control signal.

[0009] In one embodiment, the power processing circuit further includes a second converter, one end of the second converter is connected to the output end of the transformer, and the other end of the second converter is connected to the vehicle battery.

[0010] In one embodiment, the wired charging circuit includes a power factor correction circuit, one end of the power factor correction circuit is connected to the input current terminal, and the other end of the power factor correction circuit is connected to the power processing circuit;

[0011] The wireless charging circuit includes a receiving coil, which is connected to the first converter and is used to receive the electromagnetic wave signal transmitted by the transmitting coil.

[0012] In one embodiment, the control circuit further includes a signal detection circuit, which is used to detect whether there is a first input signal in the wired charging circuit, so that the control circuit sends the first charging control signal to the wired charging circuit according to the first input signal, and sends the second charging control signal to the power processing circuit.

[0013] In one embodiment, the signal detection circuit is also used to detect whether there is a second input signal in the wireless charging circuit, so that the control circuit sends the third charging control signal to the wireless charging circuit according to the second input signal, and sends the fourth charging control signal to the power processing circuit.

[0014] In one embodiment, the transformer includes a primary winding and a secondary winding, the first converter is connected to the primary winding of the transformer, and the second converter is connected to the secondary winding of the transformer.

[0015] In one embodiment, the power processing circuit includes at least one switch tube, at least one diode, at least one inductor and at least one capacitor.

[0016] The second aspect of the present application provides a charging control method, which is used in the vehicle charging system disclosed in the first aspect of the embodiment of the present application, and the charging control method includes:

[0017] According to the first input signal, a first charging control signal is sent to the wired charging circuit, and a second charging control signal is sent to the power processing circuit;

[0018] The wired charging circuit is controlled to provide a first electrical signal to the power processing circuit according to the first charging control signal, and the power processing circuit is controlled to stabilize and filter the first electrical signal according to the second charging control signal.

[0019] In one embodiment, the charging control method further includes:

[0020] According to the second input signal, sending a third charging control signal to the wireless charging circuit, and sending a fourth charging control signal to the power processing circuit;

[0021] The wireless charging circuit is controlled to provide a second electrical signal to the power processing circuit according to the third charging control signal, and the power processing circuit is controlled to perform current conversion, voltage stabilization and filtering on the second electrical signal according to the fourth charging control signal.

[0022] A third aspect of the present application provides a vehicle, which includes the on-board charging system disclosed in the first aspect of the embodiment of the present application.

[0023] In an embodiment of the present application, the on-board charging system is used for a vehicle, and the on-board charging system includes: a control circuit, a wired charging circuit, a wireless charging circuit and a power processing circuit. Among them, the power processing circuit includes a first converter and a transformer, one end of the first converter is connected to the wired charging circuit and the wireless charging circuit, the other end of the first converter is connected to the input end of the transformer, and the first converter is used to input the conversion voltage to the transformer; the control circuit is respectively connected to the wired charging circuit, the wireless charging circuit and the power processing circuit, and the control circuit is used to send a first charging control signal to the wired charging circuit, and send a second charging control signal to the power processing circuit, and / or send a third charging control signal to the wireless charging circuit, and send a fourth charging control signal to the power processing circuit; the wired charging circuit is connected to the power processing circuit, and the wired charging circuit is used to send a first electrical signal to the power processing circuit according to the first charging control signal, and the power processing circuit The circuit is used to stabilize and filter the first electrical signal according to the second charging control signal; the wireless charging circuit is connected to the power processing circuit, the wireless charging circuit is used to send the second electrical signal to the power processing circuit according to the third charging control signal, and the power processing circuit is used to perform current conversion, voltage stabilization and filtering on the second electrical signal according to the fourth charging control signal; in this way, the control circuit and power processing circuit of the wired charging circuit and the wireless charging circuit are integrated. On the one hand, it is conducive to improving the integration and intelligence of the vehicle charging system and reducing the weight of the vehicle body and the cost of manufacturing the vehicle. On the other hand, improving the integration of the vehicle charging system is also conducive to error checking, updating and upgrading of the vehicle charging system, which helps to provide users with more convenient and efficient after-sales service and optimize the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background technology, the drawings involved in the embodiments of the present application or the background technology are briefly introduced below.

[0025] Figure 1 It is a structural schematic diagram of a vehicle charging system provided in an embodiment of the present application;

[0026] Figure 2 is a schematic diagram of the structure of a power processing circuit provided in an embodiment of the present application;

[0027] Figure 3 is a structural schematic diagram of another power processing circuit provided in an embodiment of the present application;

[0028] Figure 4 is a structural schematic diagram of another vehicle-mounted charging system provided in an embodiment of the present application;

[0029] Figure 5 It is a flow chart of a charging control method provided in an embodiment of the present application;

[0030] Figure 6 It is a flow chart of another charging control method provided in an embodiment of the present application. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the solution of the present application, 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 only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] The terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, products or devices.

[0033] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0034] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0035] See also Figure 1 and Figure 2 , Figure 1 1 is a schematic diagram of the structure of a vehicle charging system 10 provided in an embodiment of the present application. The vehicle charging system 10 is used in a vehicle. Figure 1 The on-board charging system 10 corresponds to, Figure 2 1 is a schematic diagram of the structure of a power processing circuit 140 provided in an embodiment of the present application. The vehicle charging system 10 includes a control circuit 110, a wired charging circuit 120, a wireless charging circuit 130 and a power processing circuit 140, wherein the power processing circuit 140 includes a first converter 1401 and a transformer 1402, one end of the first converter 1401 is connected to the wired charging circuit 120 and the wireless charging circuit 130, and the other end of the first converter 1401 is connected to the input end of the transformer 1402, and the first converter 1401 is used to input a conversion voltage to the transformer 1402.

[0036] The control circuit 110 is respectively connected to the wired charging circuit 120, the wireless charging circuit 130 and the power processing circuit 140. The control circuit 110 is used to send a first charging control signal to the wired charging circuit 120 and a second charging control signal to the power processing circuit 140, and / or send a third charging control signal to the wireless charging circuit 130 and a fourth charging control signal to the power processing circuit 140.

[0037] The wired charging circuit 120 is connected to the first converter 1401 , and is used to send a first electrical signal to the first converter 1401 according to a first charging control signal, and the power processing circuit 140 is used to stabilize and filter the first electrical signal according to a second charging control signal.

[0038] The wireless charging circuit 130 is connected to the first converter 1401, and the wireless charging circuit 130 is used to send a second electrical signal to the first converter 1401 according to the third charging control signal, and the power processing circuit 140 is used to perform current conversion, voltage stabilization and filtering on the second electrical signal according to the fourth charging control signal.

[0039] The control circuit 110 may be a circuit based on a digital signal processing chip (DSP). The first converter 1401 may be a DC / DC converter or other devices capable of high-frequency conversion and voltage stabilization of electrical signals, which is not limited here.

[0040] Among them, the first electrical signal may be a direct current signal, and the second electrical signal may be an alternating current signal. The first charging control signal may be a signal for controlling the wired charging circuit 120 to perform wired charging, and the second charging control signal may be a signal for controlling the power processing circuit 140 to process the first electrical signal. The third charging control signal may be a signal for controlling the wireless charging circuit 130 to perform wireless charging, and the fourth charging control signal may be a signal for controlling the power processing circuit 140 to process the second electrical signal. The conversion voltage includes a first sub-conversion voltage and a second sub-conversion voltage, the first sub-conversion voltage may be a voltage converted from the first electrical signal, and the second sub-conversion voltage may be a voltage converted from the second electrical signal.

[0041] Specifically, when the control circuit 110 sends a first charging control signal to the wired charging circuit 120 and sends a second charging control signal to the power processing circuit 140, the wired charging circuit 120 sends a first electrical signal to the power processing circuit 140 according to the first charging control signal, and the power processing circuit 140 stabilizes and filters the first electrical signal according to the second charging control signal, and outputs the target charging voltage to the vehicle battery.

[0042] When the control circuit 110 sends a third charging control signal to the wireless charging circuit 130 and sends a fourth charging control signal to the power processing circuit 140, the wireless charging circuit 130 sends a second electrical signal to the power processing circuit 140 according to the third charging control signal, and the power processing circuit 140 stabilizes and filters the second electrical signal according to the fourth charging control signal, and outputs the target charging voltage to the vehicle battery.

[0043] Among them, the target charging voltage can be set comprehensively based on factors such as the performance of the vehicle battery, the vehicle factory settings, and the vehicle power consumption, and is not limited here.

[0044] It can be seen that in the embodiment of the present application, the control circuit 110 and the power processing circuit 140 of the wired charging circuit 120 and the wireless charging circuit 130 are integrated. When performing wired charging, the control circuit 110 sends a second charging control signal to the power processing circuit 140, and the power processing circuit 140 stabilizes and filters the first electrical signal according to the second charging control signal. When performing wireless charging, the control circuit 110 sends a fourth charging control signal to the power processing circuit 140, and the power processing circuit 140 performs current conversion, voltage stabilization and filtering on the second electrical signal according to the fourth charging control signal. On the one hand, it is conducive to improving the integration and intelligence of the vehicle charging system, reducing the weight of the vehicle body and the cost of manufacturing the vehicle. On the other hand, improving the integration of the vehicle charging system is also conducive to error checking, updating and upgrading of the vehicle charging system, which helps to provide users with more convenient and efficient after-sales service and optimize the user experience.

[0045] In addition, the control circuit 110 may further include a wired charging control subcircuit and a wireless charging control subcircuit. The wired charging control subcircuit is used to send a first charging control signal to the wired charging circuit 120, and to send a second charging control signal to the power processing circuit 140. The wireless charging control subcircuit is used to send a third charging control signal to the wireless charging circuit 130, and to send a fourth charging control signal to the power processing circuit 140.

[0046] Furthermore, the first converter 1401 further includes at least one power device, the control circuit 110 is connected to the first converter 1401 , and the control circuit 110 controls the power processing circuit 140 by controlling the on and off of the power device.

[0047] When the power processing circuit 140 receives the second charging control signal, the end of the first converter 1401 connected to the wired charging circuit 120 is turned on, and the end connected to the wireless charging circuit 130 is turned off. After the first converter 1401 performs high-frequency conversion and voltage stabilization on the first electrical signal transmitted by the wired charging circuit 120, it outputs a first sub-conversion voltage to the transformer 1402, so that the first sub-conversion voltage received by the transformer 1402 is a relatively stable high-frequency square wave.

[0048] When the power processing circuit 140 receives the fourth charging control signal, the end of the first converter 1401 connected to the wireless charging circuit 130 is turned on, and the end connected to the wired charging circuit 120 is turned off. After the first converter 1401 performs high-frequency conversion and voltage stabilization on the second electrical signal transmitted by the wireless charging circuit 130, it outputs a second sub-conversion voltage to the transformer 1402, so that the second sub-conversion voltage received by the transformer 1402 is a relatively stable high-frequency sine wave.

[0049] It can be seen that in the embodiment of the present application, the wired charging circuit 120 stabilizes the first electrical signal through the first converter 1401 and the transformer 1402, and the wireless charging circuit 130 performs signal conversion and voltage stabilization on the second electrical signal through the first converter 1401 and the transformer 1402. The wired charging circuit 120 and the wireless charging circuit 130 share the first converter 1401 and the transformer 1402. On the one hand, it is beneficial to improve the integration and intelligence of the vehicle charging system and reduce the weight of the vehicle body and the cost of manufacturing the vehicle. On the other hand, improving the integration of the vehicle charging system is also beneficial to the error checking, updating and upgrading of the vehicle charging system, which helps to provide users with more convenient and efficient after-sales service and optimize the user experience.

[0050] In one possible example, see Figure 3The power processing circuit 140 further includes a second converter 1403 , one end of the second converter 1403 is connected to the output end of the transformer 1402 , and the other end of the second converter 1403 is connected to the vehicle battery.

[0051] The second converter 1403 may be a DC / DC converter, or other devices capable of rectifying and filtering electrical signals, which is not limited here.

[0052] Specifically, the second converter 1403 also includes at least one power device, the control circuit 110 is connected to the second converter 1403, and the control circuit 110 controls the power processing circuit 140 by controlling the on-off of the power devices in the first converter 1401 and the second converter 1403. The second converter 1403 includes a rectifier and filter circuit, and the rectifier and filter circuit includes a plurality of diodes to rectify and filter the first sub-conversion voltage and the second sub-conversion voltage output by the transformer 1402, and output a relatively stable target charging voltage to the vehicle battery. The target charging voltage may be a DC signal.

[0053] It can be seen that in the embodiment of the present application, the first sub-conversion voltage and the second sub-conversion voltage are rectified and filtered by the second converter 1403, and a relatively stable target charging voltage is output to the vehicle battery, which helps to extend the battery life, thereby ensuring the safety and stability of the user's driving and optimizing the user experience.

[0054] In one possible example, see Figure 4 The wired charging circuit 120 includes a power factor correction circuit (Power Factor Correction, PFC) 1201, one end of the power factor correction circuit 1201 is connected to the input current end, and the other end of the power factor correction circuit 1201 is connected to the power processing circuit 140.

[0055] The power factor correction circuit 1201 may be an active PFC or a passive PFC, which is not limited here.

[0056] Specifically, the power factor correction circuit 1201 can stabilize the input voltage and adjust the input voltage and input current so that the input voltage and input current are in phase with each other. This helps to improve the energy transmission efficiency, that is, to improve the transmission efficiency of the first electrical signal, thereby improving the charging efficiency of the vehicle charging system, shortening the user's charging time, and optimizing the user experience.

[0057] In a possible example, the wireless charging circuit 130 includes a receiving coil 1301 , which is connected to the first converter 1401 , and is used to receive an electromagnetic wave signal transmitted by the transmitting coil.

[0058] Specifically, the receiving coil 1301 receives the electromagnetic wave signal emitted by the transmitting coil and converts the electromagnetic wave signal into a second electrical signal. After the second electrical signal passes through the power processing circuit 140, the second electrical signal is converted into a target charging voltage and input into the vehicle battery.

[0059] It is understandable that when a vehicle is wirelessly charged, a wireless charging station is usually required on the ground. The wireless charging station inputs the input voltage into the ground power factor correction circuit, the inverter and the transmitting coil, converts the input voltage into an electromagnetic wave signal, and sends it to the receiving coil 1301, which then converts the electromagnetic wave signal into a second electrical signal.

[0060] The control circuit 110 can communicate with the wireless charging station by wireless communication, including wireless LAN (Wireless Fidelity, WIFI), Bluetooth, General Packet Radio Service (General Packet Radio Service, GPRS), third-generation mobile communication technology (3rd-Generation, 3G), fourth-generation mobile communication technology (4th-Generation, 4G), ZigBee protocol (ZigBee), etc., which are not limited here.

[0061] In one possible example, the control circuit 110 also includes a signal detection circuit, which is used to detect whether there is a first input signal in the wired charging circuit 120, so that the control circuit 110 sends a first charging control signal to the wired charging circuit 120 according to the first input signal, and sends a second charging control signal to the power processing circuit 140.

[0062] In a possible example, the signal detection circuit is also used to detect whether there is a second input signal in the wireless charging circuit 130, so that the control circuit 110 sends a third charging control signal to the wireless charging circuit 130 according to the second input signal, and sends a fourth charging control signal to the power processing circuit 140.

[0063] The first input signal may be a wired charging signal, and the second input signal may be a wireless charging signal.

[0064] Specifically, wireless charging can be set to take precedence over wired charging. That is, the first input signal is detected only when the second input signal is not detected. When the first input signal is detected, the control circuit 110 sends a first charging control signal to the wired charging circuit 120 according to the first input signal, and sends a second charging control signal to the power processing circuit 140; when the second input signal is detected, the control circuit 110 sends a third charging control signal to the wireless charging circuit 130 according to the second input signal, and sends a fourth charging control signal to the power processing circuit 140, so that the vehicle charging system 10 performs wireless charging.

[0065] It should be noted that the priority of wired charging and wireless charging can be set according to factors such as vehicle performance and user settings, and is not limited here. For example, wired charging can be set to take precedence over wireless charging, or the two can have the same priority.

[0066] In a possible example, the transformer 1402 includes a primary winding and a secondary winding, the first converter 1401 is connected to the primary winding of the transformer 1402 , and the second converter 1403 is connected to the secondary winding of the transformer 1402 .

[0067] In a possible example, the power processing circuit 140 includes at least one switch tube, at least one diode, at least one inductor, and at least one capacitor.

[0068] It can be seen that in the embodiment of the present application, it is detected whether the wired charging circuit 120 has a first input signal and whether the wireless charging circuit 130 has a second input signal, and corresponding operations are performed according to different detected signals. At the same time, the control circuit 110 and the power processing circuit 140 of the wired charging circuit 120 and the wireless charging circuit 130 are integrated. On the one hand, it is beneficial to improve the integration and intelligence of the vehicle charging system and reduce the weight of the vehicle body and the cost of manufacturing the vehicle. On the other hand, improving the integration of the vehicle charging system is also beneficial to error checking, updating and upgrading of the vehicle charging system, which helps to provide users with more convenient and efficient after-sales service and optimize the user experience.

[0069] In addition, the vehicle charging system 10 can also be an integrated system of an on-board charger and an on-board DC / DC converter, or an integrated system of an on-board charger, an on-board DC / DC converter and a high-voltage power distribution fast charging and large current (CDU), or an integrated system of an on-board charger, an on-board DC / DC and a high-voltage power distribution auxiliary power supply current (CCU), which is not limited here.

[0070] See also Figure 5 , Figure 51 is a flow chart of a charging control method provided in an embodiment of the present application, which is used in the vehicle charging system 10 provided in any of the above-mentioned application embodiments. The charging control method includes:

[0071] 101. Send a first charging control signal to a wired charging circuit and send a second charging control signal to a power processing circuit according to a first input signal;

[0072] 102. Control the wired charging circuit to provide a first electrical signal to the power processing circuit according to the first charging control signal, and control the power processing circuit to stabilize and filter the first electrical signal according to the second charging control signal.

[0073] See also Figure 6 In one possible example, the charging control method further includes:

[0074] 103. Send a third charging control signal to the wireless charging circuit according to the second input signal, and send a fourth charging control signal to the power processing circuit;

[0075] 104. Control the wireless charging circuit to provide a second electrical signal to the power processing circuit according to the third charging control signal, and control the power processing circuit to perform current conversion, voltage stabilization, and filtering on the second electrical signal according to the fourth charging control signal.

[0076] Among them, the above-mentioned charging control method is roughly the same as the implementation principle of the vehicle charging system 10 described in any of the aforementioned application embodiments. For details, please refer to the aforementioned embodiments and will not be described again here.

[0077] In a possible example, the embodiment of the present application provides a vehicle, which includes the on-board charging system 10 provided in any of the above-mentioned application embodiments. The on-board charging system in the vehicle is the same as the on-board charging system 10 described in any of the above-mentioned application embodiments, and will not be described here.

[0078] It should be noted that, for the above-mentioned application embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should know that this application is not limited by the described action sequence, because according to this application, certain steps can be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by this application.

[0079] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0080] In the several embodiments provided in the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are only schematic, such as the division of the above-mentioned units, which is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection of devices or units can be electrical or other forms.

[0081] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0082] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0083] The embodiments of the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the present application and its core ideas. At the same time, for those skilled in the art, according to the ideas of the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A vehicle charging system, used for a vehicle, characterized in that: The vehicle-mounted charging system includes: a control circuit, a wired charging circuit, a wireless charging circuit and a power processing circuit, wherein: The power processing circuit includes a first converter and a transformer, one end of the first converter is connected to the wired charging circuit and the wireless charging circuit, the other end of the first converter is connected to the input end of the transformer, and the first converter is used to input a conversion voltage to the transformer; The control circuit is connected to the wired charging circuit, the wireless charging circuit and the power processing circuit respectively, and the control circuit is used to send a first charging control signal to the wired charging circuit and a second charging control signal to the power processing circuit, and / or send a third charging control signal to the wireless charging circuit and a fourth charging control signal to the power processing circuit; The wired charging circuit is connected to the first converter, the wired charging circuit is used to send a first electrical signal to the first converter according to the first charging control signal, and the power processing circuit is used to stabilize and filter the first electrical signal according to the second charging control signal; The wireless charging circuit is connected to the first converter, the wireless charging circuit is used to send a second electrical signal to the first converter according to the third charging control signal, and the power processing circuit is used to perform current conversion, voltage stabilization and filtering on the second electrical signal according to the fourth charging control signal; The control circuit further includes a signal detection circuit, wherein the signal detection circuit is used to detect whether the wired charging circuit has a first input signal, so that the control circuit sends the first charging control signal to the wired charging circuit according to the first input signal, and sends the second charging control signal to the power processing circuit; the signal detection circuit is also used to detect whether the wireless charging circuit has a second input signal, so that the control circuit sends the third charging control signal to the wireless charging circuit according to the second input signal, and sends the fourth charging control signal to the power processing circuit; The signal detection circuit is configured with a detection order priority of the first input signal and the second input signal.

2. The vehicle-mounted charging system according to claim 1, characterized in that: The power processing circuit further includes a second converter, one end of the second converter is connected to the output end of the transformer, and the other end of the second converter is connected to the vehicle battery.

3. The vehicle-mounted charging system according to claim 1, characterized in that: The wired charging circuit includes a power factor correction circuit, one end of the power factor correction circuit is connected to the input current end, and the other end of the power factor correction circuit is connected to the power processing circuit; The wireless charging circuit includes a receiving coil, which is connected to the first converter and is used to receive the electromagnetic wave signal transmitted by the transmitting coil.

4. The vehicle-mounted charging system according to claim 2, characterized in that: The transformer includes a primary winding and a secondary winding, the first converter is connected to the primary winding of the transformer, and the second converter is connected to the secondary winding of the transformer.

5. The vehicle-mounted charging system according to claim 1, characterized in that: The power processing circuit includes at least one switch tube, at least one diode, at least one inductor and at least one capacitor.

6. A charging control method, used in the vehicle charging system according to any one of claims 1 to 5, characterized in that: The charging control method comprises: According to the first input signal, a first charging control signal is sent to the wired charging circuit, and a second charging control signal is sent to the power processing circuit; The wired charging circuit is controlled to provide a first electrical signal to the power processing circuit according to the first charging control signal, and the power processing circuit is controlled to stabilize and filter the first electrical signal according to the second charging control signal.

7. The charging control method according to claim 6, characterized in that: The charging control method further includes: According to the second input signal, sending a third charging control signal to the wireless charging circuit, and sending a fourth charging control signal to the power processing circuit; The wireless charging circuit is controlled to provide a second electrical signal to the power processing circuit according to the third charging control signal, and the power processing circuit is controlled to perform current conversion, voltage stabilization and filtering on the second electrical signal according to the fourth charging control signal.

8. A vehicle, characterized in that: The vehicle comprises the on-board charging system according to any one of claims 1-5.

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