CN221067792U - Charging system and vehicle - Google Patents
Charging system and vehicle Download PDFInfo
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- CN221067792U CN221067792U CN202323168936.9U CN202323168936U CN221067792U CN 221067792 U CN221067792 U CN 221067792U CN 202323168936 U CN202323168936 U CN 202323168936U CN 221067792 U CN221067792 U CN 221067792U
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- 238000012790 confirmation Methods 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 8
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- 238000010586 diagram Methods 0.000 description 8
- 230000003213 activating effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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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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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to a charging system and a vehicle, the charging system comprises: the system comprises an on-board charger, a wake-up auxiliary circuit and a battery management system; the vehicle-mounted charger is provided with a charging input port and a charging output port; the wake-up auxiliary circuit comprises a first diode and a second diode, wherein the positive electrode of the first diode is electrically connected with the charging output port, the positive electrode of the second diode is electrically connected with the direct-current charging vehicle interface, and the negative electrode of the first diode and the negative electrode of the second diode are electrically connected with the same port of the battery management system; the first diode is used for transmitting an alternating-current charging wake-up signal sent by the alternating-current charging pile, and the alternating-current charging wake-up signal is used for waking up the battery management system during alternating-current charging; the second diode is used for transmitting a direct-current charging wake-up signal sent by the direct-current charging pile, and the direct-current charging wake-up signal is used for waking up the battery management system during direct-current charging. The utility model can reduce the number of interfaces occupied by charging and waking up and reduce the cost.
Description
Technical Field
The present disclosure relates to battery technology, and particularly to a charging system and a vehicle.
Background
In the charging process of electric equipment such as an electric automobile, a Battery Management System (BMS) needs to be activated and awakened. The two charging modes correspond to direct current charging and alternating current charging, and the two modes of activating and waking are direct current charging and alternating current charging respectively.
In the related art, the direct current charge wakeup and the alternating current charge wakeup each use one interface of the battery management system, which is typically an I/O port of the battery management system. In addition, a Control Pilot (CP) signal is detected by a vehicle controller when ac charging is performed.
The above solution has the following drawbacks: because the direct current charging awakening and the alternating current charging awakening need to occupy two interfaces of the battery management system, the interface requirement of the battery management system is increased, more chips are needed to meet the interface requirement, and the cost is increased.
Disclosure of utility model
In view of this, the present utility model provides a charging system and a vehicle, which can transmit two charging wake-up signals by using the same port of the battery management system, thereby reducing the number of interfaces of the battery management system occupied by charging wake-up and reducing the cost.
In a first aspect, an embodiment of the present utility model provides a charging system applied to a vehicle, the charging system including: the system comprises an on-board charger, a wake-up auxiliary circuit and a battery management system; the vehicle-mounted charger is provided with a charging input port and a charging output port; the wake-up auxiliary circuit comprises a first diode and a second diode, wherein the positive electrode of the first diode is electrically connected with the charging output port, the positive electrode of the second diode is electrically connected with a direct-current charging vehicle interface, and the negative electrode of the first diode and the negative electrode of the second diode are electrically connected to the same port of the battery management system; the first diode is used for transmitting an alternating-current charging wake-up signal sent by the alternating-current charging pile, and the alternating-current charging wake-up signal is used for waking up the battery management system during alternating-current charging; the second diode is used for transmitting a direct-current charging wake-up signal sent by the direct-current charging pile, and the direct-current charging wake-up signal is used for waking up the battery management system during direct-current charging.
In a second aspect, embodiments of the present utility model provide a vehicle including the charging system.
By connecting the cathode of the first diode and the cathode of the second diode to the same port of the battery management system in parallel, according to the aspects of the utility model, two charging wake-up signals can be transmitted by using the same port of the battery management system, so that the number of interfaces of the battery management system occupied by charging wake-up is reduced, and the cost is reduced.
Drawings
The technical solution and other advantageous effects of the present utility model will be made apparent by the following detailed description of the specific embodiments of the present utility model with reference to the accompanying drawings.
Fig. 1 shows a block diagram of a charging system of an embodiment of the utility model;
Fig. 2 shows a schematic structural diagram of a charging system according to an embodiment of the present utility model;
FIG. 3 shows a schematic diagram of a wake-up assistance circuit according to an embodiment of the utility model;
Fig. 4 shows a schematic application diagram of the charging system according to the embodiment of the utility model.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the description of the present utility model, it should be noted that, unless explicitly stated otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements or interaction relationship between the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials. In some instances, well known methods, procedures, components, and circuits have not been described in detail so as not to obscure the present utility model.
Fig. 1 shows a block diagram of a charging system of an embodiment of the present utility model. As shown in fig. 1, the charging system is applied to a vehicle 10, and includes an On-board charger 101 (On-borad charger, abbreviated as OBC), a wake-up assist circuit 102, and a battery management system 103.
Wherein, the vehicle-mounted charger 101 is provided with a charging input port and a charging output port; the wake-up auxiliary circuit 102 comprises a first diode and a second diode, wherein the anode of the first diode is electrically connected to the charging output port, the anode of the second diode is electrically connected to the direct current charging vehicle interface, and the cathode of the first diode and the cathode of the second diode are electrically connected to the same port of the battery management system 103. The first diode is used for transmitting an ac charging wake-up signal sent by the ac charging pile, and the ac charging wake-up signal is used for waking up the battery management system 103 during ac charging; the second diode is configured to transmit a dc charging wake-up signal sent by the dc charging stake, where the dc charging wake-up signal is configured to wake up the battery management system 103 during dc charging.
By connecting the cathode of the first diode and the cathode of the second diode to the same port of the battery management system 103 in parallel, the embodiment of the utility model can transmit two charging wake-up signals by using the same port of the battery management system, thereby reducing the number of interfaces of the battery management system occupied by charging wake-up and lowering the cost.
Fig. 2 shows a schematic structural diagram of a charging system according to an embodiment of the present utility model. Referring to fig. 2, the vehicle further includes a vehicle interface 104 and a battery pack 105. Battery management system 103 and battery pack 105 are part of battery pack 100, and battery management system 103 is electrically connected to battery pack 105 for managing and controlling battery pack 105.
It should be noted that, the charging modes of the electric vehicle are divided into fast charging and slow charging, the fast charging is a mode of charging the electric vehicle by using a fast charging pile (i.e. a direct current charging pile), and the slow charging is a mode of charging the electric vehicle by using a slow charging pile (i.e. an alternating current charging pile). An off-board charger 101 can be arranged in the direct current charging pile so as to convert an alternating current power supply into a direct current power supply, thereby rapidly charging the electric automobile; the off-board charger 101 may not be provided in the ac charging pile. Corresponding to the ac charging pile, a vehicle-mounted charger 101 is provided in the vehicle. The ac charging stake is used to provide a standard ac charging interface and the on-board charger 101 is used to convert the received ac current to dc power for charging the battery pack 105.
In the present utility model, although not shown in fig. 2, the charging system may include a charging stake, which is a direct current charging stake or an alternating current charging stake. Accordingly, the vehicle interface 104 includes a dc charging vehicle interface 1042 and an ac charging vehicle interface 1041, the dc charging vehicle interface 1042 is electrically connected to the dc charging post, and the ac charging vehicle interface 1041 is electrically connected to the ac charging post. Optionally, the dc charging vehicle interface 1042 is electrically connected to the dc charging post via a charging gun conforming to a dc charging standard, and the ac charging vehicle interface 1041 is electrically connected to the ac charging post via a charging gun conforming to an ac charging standard. The anode of the second diode is electrically connected to the dc charging vehicle interface 1042 to transmit a dc charging wake-up signal.
In one embodiment, as shown in fig. 2, the charging system further includes a high voltage distribution box 106, and the high voltage distribution box 106 is electrically connected to the dc charging vehicle interface 1042 and the vehicle-mounted charger 101. When charging is performed in a dc manner, the dc signal may be sent to the high voltage distribution box 106 through the dc charging vehicle interface 1042; when the charging is performed by the ac mode, the ac signal is required to be converted into a dc signal through the vehicle-mounted charging connector, and then the converted dc signal is sent to the high-voltage distribution box 106. After the dc signal is processed, the high-voltage distribution box 106 may charge the battery pack 105 using the processed dc signal.
In one embodiment, the vehicle-mounted charger 101 is provided with a charging input port and a charging output port, wherein the charging input port is electrically connected to the ac charging vehicle interface 1041, and the charging output port is electrically connected to the high-voltage distribution box 106.
Referring to fig. 2, the charging system further includes a vehicle controller 107, and the vehicle controller 107 is electrically connected to the high voltage distribution box 106, so as to control the high voltage distribution box 106 to process the dc signal.
Fig. 3 shows a schematic diagram of wake-up assistance circuit 102 according to an embodiment of the utility model. As shown in fig. 3, the wake-up auxiliary circuit 102 includes a first diode D1 and a second diode D2, wherein the anode of the first diode D1 is electrically connected to the charging output port to transmit an ac charging wake-up signal, the ac charging wake-up signal is used for waking up the battery management system 103 during ac charging, and the anode of the second diode D2 is electrically connected to the dc charging vehicle interface 1042 to transmit a dc charging wake-up signal, and the dc charging wake-up signal is used for waking up the battery management system 103 during dc charging.
In an embodiment, the battery management system 103 is provided with a charge wakeup port, and the cathode of the first diode D1 and the cathode of the second diode D2 are electrically connected to the same charge wakeup port a+ of the battery management system 103.
Because the cathode of the first diode and the cathode of the second diode are connected to the same charge wakeup port of the battery management system 103 in parallel, the embodiment of the utility model can transmit two charge wakeup signals by using the same port of the battery management system, thereby reducing the number of interfaces of the battery management system 103 occupied by charge wakeup and lowering the cost. In addition, as the diode has unidirectional conductivity, the direct current charging is not influenced when the direct current charging awakening signal works, and the direct current charging is not influenced when the alternating current charging awakening signal works, namely, the direct current charging awakening and the alternating current charging awakening are mutually independent, the direct current charging awakening and the alternating current charging awakening are not influenced, and the safety of the charging awakening process is improved.
Fig. 4 shows a schematic application diagram of the charging system according to the embodiment of the utility model. As shown in fig. 4, the charging system may be divided into a charging post terminal and a vehicle terminal. The charging pile is provided with a vehicle plug, the vehicle is provided with a vehicle socket, and the vehicle plug and the vehicle socket can be electrically connected through the charging gun. In some embodiments, the vehicle receptacle may be the same component as the vehicle interface 104. It should be noted that fig. 4 mainly illustrates an ac charging mode, and the charging pile in fig. 4 may be an ac charging pile.
In one embodiment, the vehicle interface 104 includes control pilot pins for transmitting Control Pilot (CP) signals from the dc charging post or the ac charging post, which may be used for charge status monitoring and control. The vehicle further includes a third diode D3, an anode of the third diode D3 is electrically connected to the control lead pin, and a cathode of the third diode D3 is electrically connected to the battery management system 103. The cathode of the third diode D3 is a first detection point, i.e. detection point 1.
In an embodiment, the vehicle interface 104 further includes a ground pin PE, the ground pin being grounded, and the vehicle further includes a first resistor R1, a second resistor R2, and a first switch S1. The first end of the first resistor R1 is electrically connected to the negative electrode of the third diode, and the second end of the first resistor R1 is electrically connected to the ground pin; the first end of the second resistor R2 is electrically connected to the negative electrode of the third diode, and the second end of the second resistor R2 is electrically connected to the first end of the first switch S1; a first switch S1, a second end of the first switch S1 is electrically connected to the ground pin, and a third end of the first switch S1 is electrically connected to the battery management system 103. The first switch S1 is used for controlling whether the second resistor R2 is connected to ground, and the battery management system 103 controls the switching state of the first switch S1. Alternatively, the first switch S1 may be a low-voltage relay. The resistance of the second resistor R2 is equal to the resistance of the first resistor R1.
In an embodiment, the charging pile includes a power supply control device, a second switch S2, and a third resistor R3. The power supply control device is provided with a power supply output end, a power supply grounding end, a detection end and a control signal output end, wherein the power supply output end is electrically connected to the battery management system 103, and the power supply grounding end is grounded; a first end of the second switch S2 is electrically connected to the control signal output terminal (PWM) or the power supply output terminal (+12v), and a second end of the second switch S2 is electrically connected to a first end of the third resistor R3; the second end of the third resistor R3 is electrically connected to the control lead pin and the detection end. The second end of the third resistor R3 is a second detection point, namely a detection point 2. Optionally, the resistance of the third resistor R3 is one half of the resistance of the first resistor R1.
In an embodiment, the vehicle interface 104 further includes a charge connection confirmation pin for transmitting a charge connection confirmation (connection confirm, CC) signal that can be used to confirm whether the vehicle plug and vehicle outlet are fully connected in the slow charge mode. The charging pile further comprises a fourth resistor R4, wherein a first end of the fourth resistor R4 is electrically connected to the charging connection confirmation pin and is connected to the battery management system 103 through the charging connection confirmation pin, and a second end of the fourth resistor R4 is grounded. The vehicle plug can be used as an external charging interface of the charging pile, and the fourth resistor R4 can be arranged in the vehicle plug.
In one embodiment, the vehicle interface 104 further includes three-phase ac pins, such as L and N in fig. 4. A third switch K1 and a fourth switch K2 may be respectively disposed between the L line and the N line between the three-phase ac power pin and the charging pile terminal, and are used for controlling whether to output the three-phase ac power of the charging pile terminal to the vehicle interface 104.Dc+ represents a positive direct current charging voltage when the vehicle is DC-charged, and DC-represents a negative direct current charging voltage when the vehicle is DC-charged.
The utility model also provides a vehicle comprising the charging system. It will be appreciated that other systems or components may be provided in the vehicle in addition to the charging system, and the utility model is not limited to such other systems or components.
In an embodiment, the vehicle interface 104 may further include a CC2 pin for charging connection confirmation in the dc fast charge mode. The working process in the direct current fast charging mode is similar to the working process in the alternating current slow charging mode, and the description is omitted.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.
The charging system and the vehicle provided by the embodiment of the utility model are described in detail, and specific examples are applied to illustrate the principle and the implementation of the utility model, and the description of the above embodiments is only used for helping to understand the technical scheme and the core idea of the utility model; those of ordinary skill in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (7)
1. A charging system, characterized by being applied to a vehicle, comprising:
the system comprises an on-board charger, a wake-up auxiliary circuit and a battery management system;
the vehicle-mounted charger is provided with a charging input port and a charging output port;
The wake-up auxiliary circuit comprises a first diode and a second diode, wherein the positive electrode of the first diode is electrically connected with the charging output port, the positive electrode of the second diode is electrically connected with a direct-current charging vehicle interface, and the negative electrode of the first diode and the negative electrode of the second diode are electrically connected to the same port of the battery management system;
The first diode is used for transmitting an alternating-current charging wake-up signal sent by the alternating-current charging pile, and the alternating-current charging wake-up signal is used for waking up the battery management system during alternating-current charging ;
The second diode is used for transmitting a direct-current charging wake-up signal sent by the direct-current charging pile, and the direct-current charging wake-up signal is used for waking up the battery management system during direct-current charging.
2. The charging system of claim 1, wherein the vehicle further comprises a vehicle interface including a control pilot pin for transmitting a control pilot signal from the dc charging post or the ac charging post, the vehicle further comprising:
And the anode of the third diode is electrically connected with the control guide pin, and the cathode of the third diode is electrically connected with the battery management system.
3. The charging system of claim 2, wherein the vehicle interface further comprises a ground pin, the ground pin being grounded, the vehicle further comprising:
A first resistor, wherein a first end of the first resistor is electrically connected to the negative electrode of the third diode, and a second end of the first resistor is electrically connected to the ground pin;
A second resistor, wherein a first end of the second resistor is electrically connected to the negative electrode of the third diode, and a second end of the second resistor is electrically connected to a first end of the first switch;
The second end of the first switch is electrically connected with the grounding pin, and the third end of the first switch is electrically connected with the battery management system.
4. The charging system of claim 3, further comprising a charging post, the charging post comprising:
The power supply control device is provided with a power supply output end, a power supply grounding end, a detection end and a control signal output end, wherein the power supply output end is electrically connected with the battery management system, and the power supply grounding end is grounded;
The first end of the second switch is electrically connected with the control signal output end or the power supply output end, and the second end of the second switch is electrically connected with the first end of the third resistor;
And the second end of the third resistor is electrically connected with the control guide pin and the detection end.
5. The charging system of any one of claims 1-4, wherein the vehicle interface further comprises a charge connection confirmation pin for transmitting a charge connection confirmation signal, the charging peg further comprising a fourth resistor, a first end of the fourth resistor being electrically connected to the charge connection confirmation pin, a second end of the fourth resistor being grounded.
6. The charging system of any one of claims 1-4, further comprising a charging post, the charging post comprising a dc charging post and an ac charging post, the vehicle interface comprising a dc charging vehicle interface and an ac charging vehicle interface, the dc charging vehicle interface being electrically connected to the dc charging post, the ac charging vehicle interface being electrically connected to the ac charging post, the charging input port being electrically connected to the ac charging vehicle interface.
7. A vehicle comprising a charging system according to any one of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323168936.9U CN221067792U (en) | 2023-11-22 | 2023-11-22 | Charging system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323168936.9U CN221067792U (en) | 2023-11-22 | 2023-11-22 | Charging system and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221067792U true CN221067792U (en) | 2024-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323168936.9U Active CN221067792U (en) | 2023-11-22 | 2023-11-22 | Charging system and vehicle |
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| Country | Link |
|---|---|
| CN (1) | CN221067792U (en) |
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- 2023-11-22 CN CN202323168936.9U patent/CN221067792U/en active Active
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