CN113335093A - Vehicle-mounted charging system, charging control method and vehicle - Google Patents
Vehicle-mounted charging system, charging control method and vehicle Download PDFInfo
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- CN113335093A CN113335093A CN202110724078.8A CN202110724078A CN113335093A CN 113335093 A CN113335093 A CN 113335093A CN 202110724078 A CN202110724078 A CN 202110724078A CN 113335093 A CN113335093 A CN 113335093A
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- 238000004804 winding Methods 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 7
- 230000011664 signaling Effects 0.000 claims description 6
- 239000003990 capacitor Substances 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 2
- 230000010354 integration Effects 0.000 abstract description 9
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- 238000010586 diagram Methods 0.000 description 6
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/12—Inductive energy transfer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The application discloses a vehicle-mounted charging system, a charging control method and a vehicle. The vehicle-mounted charging system comprises a control circuit, a wired charging circuit, a wireless charging circuit and a power processing circuit, wherein the control circuit is respectively connected with the wired charging circuit, the wireless charging circuit and the power processing circuit; so, with wired charging circuit and wireless charging circuit's control circuit and power processing circuit integration, on the one hand, be favorable to improving on-vehicle charging system's the degree of integration and intelligent degree, reduce automobile body weight and make the car cost, on the other hand is favorable to on-vehicle charging system's mistake-checking, update and upgrading.
Description
Technical Field
The application relates to the technical field of electronic circuits, in particular to a vehicle-mounted charging system, a charging control method and a vehicle.
Background
At present, two charging modes of a new energy automobile are mainly adopted, one mode is wired charging, and the other mode is wireless charging. In the vehicle supporting wireless charging and wired charging simultaneously, two charging systems need to be configured, the integration degree of the vehicle-mounted charging system is low, the size of the vehicle-mounted charging system is large, and the production cost of the vehicle is high.
Disclosure of Invention
The embodiment of the application provides a vehicle-mounted charging system, is favorable to improving vehicle-mounted charging system's the degree of integrating and intelligent degree, reduces automobile body weight and makes the car cost.
In a first aspect, an embodiment of the present application provides an on-vehicle charging system, for a vehicle, the on-vehicle charging system includes: control circuit, wired charging circuit, wireless charging circuit and power processing circuit, wherein,
the power processing circuit comprises a first converter and a transformer, wherein one end of the first converter is connected with the wired charging circuit and the wireless charging circuit, the other end of the first converter is connected with the input end of the transformer, and the first converter is used for inputting conversion voltage to the transformer;
the control circuit is respectively connected with the wired charging circuit, the wireless charging circuit and the power processing circuit, and is used for sending a first charging control signal to the wired charging circuit and a second charging control signal to the power processing circuit, and/or sending 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 with the first converter, the wired charging circuit is used for sending a first electric signal to the first converter according to the first charging control signal, and the power processing circuit is used for stabilizing and filtering the first electric signal according to the second charging control signal;
the wireless charging circuit is connected with the first converter, the wireless charging circuit is used for sending a second electric signal to the first converter according to the third charging control signal, and the power processing circuit is used for carrying out current conversion, voltage stabilization and filtering on the second electric signal according to the fourth charging control signal.
In one embodiment, the power processing circuit further comprises a second converter, one end of the second converter is connected with the output end of the transformer, and the other end of the second converter is connected with an on-board battery.
In one embodiment, the wired charging circuit comprises a power factor correction circuit, one end of the power factor correction circuit is connected with the input current end, and the other end of the power factor correction circuit is connected with the power processing circuit;
the wireless charging circuit comprises a receiving coil, the receiving coil is connected with the first converter, and the receiving coil is used for receiving electromagnetic wave signals transmitted by the transmitting coil.
In one embodiment, the control circuit further includes a signal detection circuit, and the signal detection circuit is configured to detect whether a first input signal is present 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.
In one embodiment, the signal detection circuit is further configured to detect whether a second input signal is present 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.
In one embodiment, the transformer comprises 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.
In one embodiment, the power processing circuit includes at least one switching tube, at least one diode, at least one inductor, and at least one capacitor.
A second aspect of the present application provides a charging control method for the vehicle-mounted charging system disclosed in the first aspect of the embodiment of the present application, where the charging control method includes:
according to the first input signal, sending a first charging control signal to the wired charging circuit, and sending a second charging control signal to the power processing circuit;
and controlling the wired charging circuit to provide a first electric signal to the power processing circuit according to the first charging control signal, and controlling the power processing circuit to stabilize and filter the first electric signal according to the second charging control signal.
In one embodiment, the charge 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;
and controlling the wireless charging circuit to provide a second electric signal to the power processing circuit according to the third charging control signal, and controlling the power processing circuit to perform current conversion, voltage stabilization and filtering on the second electric signal according to a fourth charging control signal.
The third aspect of the present application provides a vehicle including the vehicle-mounted charging system disclosed in the first aspect of the embodiment of the present application.
In an embodiment of the present application, the in-vehicle charging system is for a vehicle, and includes: control circuit, wired charging circuit, wireless charging circuit and power processing circuit. The power processing circuit comprises a first converter and a transformer, wherein one end of the first converter is connected with the wired charging circuit and the wireless charging circuit, the other end of the first converter is connected with the input end of the transformer, and the first converter is used for inputting conversion voltage to the transformer; the control circuit is respectively connected with the wired charging circuit, the wireless charging circuit and the power processing circuit, and is used for sending a first charging control signal to the wired charging circuit and a second charging control signal to the power processing circuit, and/or sending 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 with the power processing circuit, the wired charging circuit is used for sending a first electric signal to the power processing circuit according to a first charging control signal, and the power processing circuit is used for carrying out voltage stabilization and filtering on the first electric signal according to a second charging control signal; the wireless charging circuit is connected with the power processing circuit, the wireless charging circuit is used for sending a second electric signal to the power processing circuit according to a third charging control signal, and the power processing circuit is used for carrying out current conversion, voltage stabilization and filtering on the second electric signal according to a fourth charging control signal; so, with wired charging circuit and wireless charging circuit's control circuit and power processing circuit integration, on the one hand, be favorable to improving on-vehicle charging system's the degree of integration and intelligent degree, reduce automobile body weight and make the car cost, on the other hand, improve on-vehicle charging system's the degree of integration and also be favorable to on-vehicle charging system's mistake-checking, update and upgrading, help providing more convenient efficient after-sales service for the user, optimize user experience.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or the background art of the present application, the drawings referred to in the embodiments or the background art of the present application will be briefly described below.
Fig. 1 is a schematic structural diagram of an in-vehicle charging system provided in an embodiment of the present application;
fig. 2 is a schematic structural diagram of a power processing circuit according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of another power processing circuit according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of another vehicle-mounted charging system provided in the embodiment of the present application;
fig. 5 is a schematic flowchart of a charging control method according to an embodiment of the present application;
fig. 6 is a flowchart illustrating another charging control method according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms "first," "second," and the like in the description and claims of the present application and in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements but may alternatively include other steps or elements not expressly listed or inherent to such process, system, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
The embodiments of the present application will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of an in-vehicle charging system 10 according to an embodiment of the present disclosure, where the in-vehicle charging system 10 is used for a vehicle. Corresponding to the vehicle-mounted charging system 10 in fig. 1, fig. 2 is a schematic structural diagram of a power processing circuit 140 according to an embodiment of the present application. The vehicle-mounted charging system 10 includes a control circuit 110, a wired charging circuit 120, a wireless charging circuit 130, and a power processing circuit 140, where 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, the other end of the first converter 1401 is connected to an input end of the transformer 1402, and the first converter 1401 is used to input a converted voltage to the transformer 1402.
The control circuit 110 is connected to the wired charging circuit 120, the wireless charging circuit 130, and the power processing circuit 140, respectively, and the control circuit 110 is configured 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.
The wired charging circuit 120 is connected to the first converter 1401, the wired charging circuit 120 is configured to transmit the first electrical signal to the first converter 1401 according to the first charging control signal, and the power processing circuit 140 is configured to stabilize and filter the first electrical signal according to the second charging control signal.
The wireless charging circuit 130 is connected to the first converter 1401, the wireless charging circuit 130 is configured to transmit the second electrical signal to the first converter 1401 according to the third charging control signal, and the power processing circuit 140 is configured to perform current conversion, voltage stabilization and filtering on the second electrical signal according to the fourth charging control signal.
The control circuit 110 may be a circuit mainly including a Digital Signal Processing (DSP) chip. The first converter 1401 may be a DC/DC converter, or may be another device capable of performing high-frequency conversion and voltage stabilization on an electrical signal, and is not limited herein.
The first electrical signal may be a direct current electrical signal, and the second electrical signal may be an alternating current electrical signal. The first charge control signal may be a signal that controls the wired charging circuit 120 to perform wired charging, and the second charge control signal may be a signal that controls the power processing circuit 140 to process the first electric signal. The third charging control signal may be a signal that controls the wireless charging circuit 130 to perform wireless charging, and the fourth charging control signal may be a signal that controls the power processing circuit 140 to process the second electric signal. The converted voltage includes a first sub-converted voltage, which may be a voltage converted by the first electrical signal, and a second sub-converted voltage, which may be a voltage converted by the second electrical signal.
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 performs voltage stabilization and filtering on the first electrical signal according to the second charging control signal and outputs a target charging voltage to the vehicle-mounted battery.
When the control circuit 110 sends the third charging control signal to the wireless charging circuit 130 and sends the fourth charging control signal to the power processing circuit 140, the wireless charging circuit 130 sends the second electrical signal to the power processing circuit 140 according to the third charging control signal, and the power processing circuit 140 performs voltage stabilization and filtering on the second electrical signal according to the fourth charging control signal and outputs the target charging voltage to the vehicle-mounted battery.
The target charging voltage may be set comprehensively according to factors such as the performance of the on-board battery, the vehicle factory settings, and the vehicle power consumption, which are not limited herein.
As can be seen, 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, be favorable to improving on-vehicle charging system's the degree of integrating and intelligent degree, reduce automobile body weight and make the car cost, on the other hand, the degree of integrating that improves on-vehicle charging system still is favorable to on-vehicle charging system's mistake-checking, update and upgrading, helps providing more convenient efficient after-sales service for the user, optimizes user experience.
In addition, the control circuit 110 may also include a wired charge control sub-circuit and a wireless charge control sub-circuit. The wired charging control sub-circuit is configured to send a first charging control signal to the wired charging circuit 120, and send a second charging control signal to the power processing circuit 140. The wireless charging control sub-circuit is configured to send a third charging control signal to the wireless charging circuit 130, and is configured to send a fourth charging control signal to the power processing circuit 140.
Further, the first converter 1401 further includes at least one power device therein, the control circuit 110 is connected to the first converter 1401, and the control circuit 110 controls the power processing circuit 140 by controlling on/off of the power device.
When the power processing circuit 140 receives the second charging control signal, the first converter 1401 is turned on at the end connected to the wired charging circuit 120, and is turned off at the end connected to the wireless charging circuit 130. The first converter 1401 converts and stabilizes the first electrical signal transmitted by the wired charging circuit 120 at a high frequency, and then outputs a first sub-converted voltage to the transformer 1402, so that the first sub-converted voltage received by the transformer 1402 is a relatively stable high-frequency square wave.
When the power processing circuit 140 receives the fourth charging control signal, the first converter 1401 turns on the end connected to the wireless charging circuit 130, and turns off the end connected to the wired charging circuit 120. The first converter 1401 converts and stabilizes the second electrical signal transmitted by the wireless charging circuit 130 at a high frequency, and then outputs a second sub-converted voltage to the transformer 1402, so that the second sub-converted voltage received by the transformer 1402 is a more stable high-frequency sine wave.
It can be seen that, in the embodiment of the present application, the wired charging circuit 120 performs voltage stabilization on the first electrical signal through the first converter 1401 and the transformer 1402, the wireless charging circuit 130 performs signal transformation and voltage stabilization on the second electrical signal through the first converter 1401 and the transformer 1402, and the wired charging circuit 120 and the wireless charging circuit 130 share the first converter 1401 and the transformer 1402, on one hand, the improvement of the integration degree and the intelligence degree of the vehicle-mounted charging system is facilitated, and the reduction of the vehicle weight and the vehicle manufacturing cost is reduced.
In one possible example, referring to fig. 3, the 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-mounted battery.
The second converter 1403 may be a DC/DC converter, or may be another device capable of rectifying and filtering an electrical signal, which is not limited herein.
Specifically, the second converter 1403 further includes at least one power device therein, the control circuit 110 is connected to the second converter 1403, and the control circuit 110 controls the power processing circuit 140 by controlling on and off of the power devices in the first converter 1401 and the second converter 1403. The second converter 1403 includes a rectifying and smoothing circuit, and the rectifying and smoothing circuit includes a plurality of diodes to rectify and smooth the first sub-converted voltage and the second sub-converted voltage output by the transformer 1402, and output a relatively stable target charging voltage to the vehicle-mounted battery. The target charging voltage may be a dc signal.
It can be seen that, in the embodiment of the present application, the second converter 1403 rectifies and filters the first sub-conversion voltage and the second sub-conversion voltage, and outputs a relatively stable target charging voltage to the vehicle-mounted battery, which is beneficial to prolonging the service life of the battery, thereby ensuring the driving safety and stability of the user, and optimizing the user experience.
In one possible example, referring to fig. 4, the wired charging circuit 120 includes a Power Factor Correction (PFC) circuit 1201, one end of the PFC circuit 1201 is connected to the input current terminal, and the other end of the PFC circuit 1201 is connected to the Power processing circuit 140.
The power factor correction circuit 1201 may be an active PFC or a passive PFC, which is not limited herein.
Specifically, the power factor correction circuit 1201 can stabilize the input voltage, and adjust the input voltage and the input current, so that the input voltage and the input current have the same phase, which is helpful for improving the energy transmission efficiency, i.e., the transmission efficiency of the first electrical signal, so as to improve the charging efficiency of the vehicle-mounted charging system, shorten the charging time of the user, and optimize the user experience.
In one possible example, the wireless charging circuit 130 includes a receiving coil 1301, the receiving coil 1301 being connected to the first converter 1401, the receiving coil 1301 being used to receive electromagnetic wave signals transmitted by the transmitting coil.
Specifically, the receiving coil 1301 receives the electromagnetic wave signal transmitted by the transmitting coil and converts the electromagnetic wave signal into a second electrical signal. After the second electric signal passes through the power processing circuit 140, the second electric signal is converted into a target charging voltage and is input to the vehicle-mounted battery.
It can be understood that when the vehicle is charged wirelessly, the ground is usually equipped with a wireless charging station. The wireless charging station inputs the input voltage into the ground power factor correction circuit, the inverter and the transmitting coil respectively, converts the input voltage into an electromagnetic wave signal, sends the electromagnetic wave signal to the receiving coil 1301, and converts the electromagnetic wave signal into a second electric signal through the receiving coil 1301.
The communication mode between the control circuit 110 and the Wireless charging station may be Wireless communication, including Wireless local area network (WIFI), bluetooth, General Packet Radio Service (GPRS), third Generation mobile communication technology (3rd-Generation,3G), fourth Generation mobile communication technology (4th-Generation,4G), ZigBee (ZigBee), and the like, which is not limited herein.
In one possible example, the control circuit 110 further includes a signal detection circuit for detecting whether the first input signal is present 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.
In one possible example, the signal detection circuit is further configured to detect whether the second input signal is present 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.
The first input signal may be a wired charging signal, and the second input signal may be a wireless charging signal.
Specifically, wireless charging may be set in preference to wired charging. That is, the first input signal is detected only when the second input signal is not detected, and the control circuit 110 sends the first charging control signal to the wired charging circuit 120 according to the first input signal and sends the second charging control signal to the power processing circuit 140 when the first input signal is detected; in case that the second input signal is detected, the control circuit 110 transmits a third charging control signal to the wireless charging circuit 130 according to the second input signal and transmits a fourth charging control signal to the power processing circuit 140, so that the in-vehicle charging system 10 performs wireless charging.
The priority order of wired charging and wireless charging may be set according to vehicle performance, user setting, and other factors, and is not limited herein, and for example, the priority order of wired charging over wireless charging or the priority order of wired charging and wireless charging may be the same.
In one possible example, the transformer 1402 comprises a primary winding and a secondary winding, the first converter 1401 is connected with the primary winding of the transformer 1402, and the second converter 1403 is connected with the secondary winding of the transformer 1402.
In one possible example, the power processing circuit 140 includes at least one switching tube, at least one diode, at least one inductor, and at least one capacitor.
It can be seen that, in the embodiment of the present application, whether the wired charging circuit 120 has the first input signal and whether the wireless charging circuit 130 has the second input signal are detected, and corresponding operations are executed according to different detected signals, and meanwhile, 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 one hand, the improvement of the integration degree and the intelligence degree of the vehicle-mounted charging system is facilitated, and the reduction of the vehicle weight and the vehicle manufacturing cost is facilitated, on the other hand, the improvement of the integration degree of the vehicle-mounted charging system is also facilitated, and therefore, the vehicle-mounted charging system is beneficial to providing more convenient and efficient after-sale services for users, and the user experience is optimized.
In addition, the vehicle-mounted charging system 10 may also be an integrated system of a vehicle-mounted charger and a vehicle-mounted DC/DC converter, or an integrated system (CDU) of a vehicle-mounted charger, a vehicle-mounted DC/DC converter and a high-voltage distribution rapid charging large current, or an integrated system (CCU) of a vehicle-mounted charger, a vehicle-mounted DC/DC and a high-voltage distribution auxiliary power supply current, which is not limited herein.
Referring to fig. 5, fig. 5 is a schematic flowchart of a charging control method according to an embodiment of the present application, which is used for the vehicle-mounted charging system 10 according to any of the embodiments of the present application. The charging control method comprises the following steps:
101. according to the first input signal, sending a first charging control signal to the wired charging circuit, and sending a second charging control signal to the power processing circuit;
102. and controlling the wired charging circuit to provide the first electric signal to the power processing circuit according to the first charging control signal, and controlling the power processing circuit to stabilize and filter the first electric signal according to the second charging control signal.
Referring to fig. 6, in one possible example, the charging control method further includes:
103. 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;
104. and controlling the wireless charging circuit to provide a second electric signal to the power processing circuit according to the third charging control signal, and controlling the power processing circuit to perform current conversion, voltage stabilization and filtering on the second electric signal according to the fourth charging control signal.
The charging control method is substantially the same as the implementation principle of the vehicle-mounted charging system 10 described in any of the embodiments of the foregoing application, and reference may be made to the embodiments, which are not described herein.
In one possible example, the embodiment of the present application provides a vehicle including the vehicle-mounted charging system 10 provided in any one of the embodiments of the present application. The vehicle-mounted charging system in the vehicle is the same as the vehicle-mounted charging system 10 described in any of the embodiments of the above-mentioned applications, and will not be described here.
It should be noted that, for the sake of simplicity, the embodiments of the present application are described as a series of acts or combinations, but those skilled in the art should understand that the present application is not limited by the described order of acts, as some steps may be performed in other orders or simultaneously according to the present application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required in this application.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the above-described division of the units is only one type of division of logical functions, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of some interfaces, devices or units, and may be an electric or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application with specific examples, and the above description of the embodiments is only provided to help understand the present application and its core ideas; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. An on-vehicle charging system for a vehicle, characterized by comprising: control circuit, wired charging circuit, wireless charging circuit and power processing circuit, wherein,
the power processing circuit comprises a first converter and a transformer, wherein one end of the first converter is connected with the wired charging circuit and the wireless charging circuit, the other end of the first converter is connected with the input end of the transformer, and the first converter is used for inputting conversion voltage to the transformer;
the control circuit is respectively connected with the wired charging circuit, the wireless charging circuit and the power processing circuit, and is used for sending a first charging control signal to the wired charging circuit and a second charging control signal to the power processing circuit, and/or sending 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 with the first converter, the wired charging circuit is used for sending a first electric signal to the first converter according to the first charging control signal, and the power processing circuit is used for stabilizing and filtering the first electric signal according to the second charging control signal;
the wireless charging circuit is connected with the first converter, the wireless charging circuit is used for sending a second electric signal to the first converter according to the third charging control signal, and the power processing circuit is used for carrying out current conversion, voltage stabilization and filtering on the second electric signal according to the fourth charging control signal.
2. The vehicle charging system of claim 1, wherein the power processing circuit further comprises 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 a vehicle battery.
3. The vehicle-mounted charging system according to claim 1, wherein the wired charging circuit comprises a power factor correction circuit, one end of the power factor correction circuit is connected with an input current terminal, and the other end of the power factor correction circuit is connected with the power processing circuit;
the wireless charging circuit comprises a receiving coil, the receiving coil is connected with the first converter, and the receiving coil is used for receiving electromagnetic wave signals transmitted by the transmitting coil.
4. The vehicle charging system of claim 1, wherein the control circuit further comprises a signal detection circuit configured to detect whether a first input signal is present in the wired charging circuit, such 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.
5. The vehicle charging system of claim 4, wherein the signal detection circuit is further configured to detect whether a second input signal is present 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.
6. The vehicle charging system of claim 2, wherein 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.
7. The vehicle charging system of claim 1, wherein the power processing circuit comprises at least one switching tube, at least one diode, at least one inductor, and at least one capacitor.
8. A charging control method for the vehicle-mounted charging system according to any one of claims 1 to 7, characterized by comprising:
according to the first input signal, sending a first charging control signal to the wired charging circuit, and sending a second charging control signal to the power processing circuit;
and controlling the wired charging circuit to provide a first electric signal to the power processing circuit according to the first charging control signal, and controlling the power processing circuit to stabilize and filter the first electric signal according to the second charging control signal.
9. The charge control method according to claim 8, characterized by further comprising:
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;
and controlling the wireless charging circuit to provide a second electric signal to the power processing circuit according to the third charging control signal, and controlling the power processing circuit to perform current conversion, voltage stabilization and filtering on the second electric signal according to a fourth charging control signal.
10. A vehicle, characterized in that it comprises an on-board charging system according to any one of claims 1-7.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110724078.8A CN113335093A (en) | 2021-06-26 | 2021-06-26 | Vehicle-mounted charging system, charging control method and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110724078.8A CN113335093A (en) | 2021-06-26 | 2021-06-26 | Vehicle-mounted charging system, charging control method and vehicle |
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| CN113335093A true CN113335093A (en) | 2021-09-03 |
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| CN202110724078.8A Pending CN113335093A (en) | 2021-06-26 | 2021-06-26 | Vehicle-mounted charging system, charging control method and vehicle |
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