Battery control chip, battery management system, battery device and electrical device

Abstract

This application provides a battery control chip, a battery management system, a battery device, and a power consumption device. The battery control chip includes: a first power supply; a second power supply; a processing module, wherein the first power supply is connected to the processing module to supply power to the processing module; and an Ethernet module, wherein the second power supply is connected to the Ethernet module to supply power to the Ethernet module. Based on the above approach, the reliability of the battery control chip can be improved.

Description

Technical Field

[0001] This application relates to the field of battery control technology, and in particular to battery control chips, battery management systems, battery devices, and electrical devices. Background Technology

[0002] With the development of the times, the new energy field has placed increasingly higher demands on the stable operation and rapid response capabilities of batteries.

[0003] The drawback of existing technology is that, in current battery control systems, the processing module and the Ethernet module are usually powered by the same power source. Therefore, the unified sleep and wake-up control of the processing module and the Ethernet module can only be achieved by controlling the power supply of this same power source. However, after both the processing module and the Ethernet module are powered off and in sleep mode, if they need to be powered on, they need to be woken up. This process takes a considerable amount of time to establish a network between the battery control chips to restore their coordinated operation. As a result, the response speed of existing battery control chips is slow, and therefore the reliability of the battery control chips is low. Utility Model Content

[0004] The main technical problem addressed by this application is to provide a battery control chip, a battery management system, a battery device, and an electrical device, which can improve the reliability of the battery control chip.

[0005] In a first aspect, this application provides a battery control chip, comprising: a first power supply; a second power supply; a processing module, wherein the first power supply is connected to the processing module to supply power to the processing module; and an Ethernet module, wherein the second power supply is connected to the Ethernet module to supply power to the Ethernet module.

[0006] In the technical solution of this application embodiment, by integrating the processing module and the Ethernet module into the same battery control chip and configuring them with corresponding power supplies, the battery control chip can keep the Ethernet module powered on and perform corresponding operations when the processing module is powered off and in sleep mode. That is, when the first power supply stops supplying power while the second power supply continues to supply power, not only can the power consumption of the battery control chip be kept low, but the operation of the Ethernet module can also be maintained. When it is necessary to wake up the processing module, the network formed by the Ethernet modules that are still operating in each battery control chip can be used to quickly turn on the first power supply and the processing module in each battery control chip, quickly restore the coordinated operation between the battery control chips, improve the response speed of the battery control chip, and thus improve the reliability of the battery control chip.

[0007] In some embodiments, the Ethernet module includes an EtherCAT slave control unit, and a second power supply is used to power the EtherCAT slave control unit.

[0008] In the technical solution of this application embodiment, by integrating the processing module and the Ethernet module with EtherCAT slave control unit into the same battery control chip and configuring corresponding power supplies, the battery control chip can maintain the power supply and operation of the EtherCAT slave control unit when the processing module is powered off and in sleep mode. That is, when the first power supply stops supplying power while the second power supply continues to supply power, not only can the power consumption of the battery control chip be kept low, but the operation of the EtherCAT slave control unit can also be maintained. When it is necessary to wake up the processing module, the network formed by the EtherCAT slave control units that are still operating in each battery control chip can be used to quickly turn on the first power supply and processing module in each battery control chip through the transmission of corresponding message signals between each battery control chip, thereby quickly restoring the coordinated operation between the battery control chips, improving the response speed of the battery control chip, and thus improving the reliability of the battery control chip.

[0009] In some embodiments, the Ethernet module includes: a media access control unit, a second power supply for powering the media access control unit; and a media access control security unit, wherein the media access control unit is connected to the media access control security unit, the second power supply for powering the media access control security unit, and the media access control unit for outputting corresponding signals through the media access control security unit.

[0010] In the technical solution of this application embodiment, by integrating the media access control unit and the media access control security unit into the same battery control chip and using a second power supply that is independently set relative to the first power supply, the media access control unit and the media access control security unit can be powered at all times. This allows the communication subsystem corresponding to the battery control chip to be designed as a whole and its integration to be improved. The media access control security unit can then process the signals output by the media access control unit, thereby improving the data security of the battery control chip.

[0011] In some embodiments, the Ethernet module further includes: a physical layer unit, a second power supply for supplying power to the physical layer unit, a media access control security unit connected to the physical layer unit, and a media access control unit for outputting corresponding signals to the physical layer unit through the media access control security unit.

[0012] In the technical solution of this application embodiment, by integrating the media access control unit, the media access control security unit, and the physical layer unit into the same battery control chip, and using a second power supply that is independently set relative to the first power supply, the media access control unit, the media access control security unit, and the physical layer unit can be powered at all times. This allows the communication subsystem corresponding to the battery control chip to be designed as a whole for corresponding security and further improves the integration. The media access control security unit performs corresponding data processing on the signals output by the media access control unit, thereby improving the data security of the battery control chip.

[0013] In some embodiments, the battery control chip further includes: a monitoring module, wherein a second power supply is connected to the monitoring module to supply power to the monitoring module, and the monitoring module is used to monitor the message signals output by the Ethernet module; and a watchdog module, wherein a second power supply is connected to the watchdog module to supply power to the watchdog module, and the watchdog module is used to perform timing processing on target type signal segments in the monitoring module.

[0014] In the technical solution of this application embodiment, by continuously supplying power to the Ethernet module, monitoring module, and watchdog module through the second power supply, and by monitoring the message signals of the network composed of the Ethernet modules through the monitoring module, and by timing the target type signal in the message signal through the watchdog module, when it is necessary to wake up the first power supply and processing module that is turned off, the Ethernet module and monitoring module can confirm the target type signal in the message signal corresponding to the wake-up, and the watchdog module can provide the corresponding indication signal to turn on the first power supply and processing module in each battery control chip, quickly restore the cooperative operation between the battery control chips, improve the response speed of the battery control chip, and thus improve the reliability of the battery control chip.

[0015] In some embodiments, the battery control chip further includes: an input / output unit, a second power supply connected to the input / output unit to supply power to the input / output unit, the input / output unit being used to output a corresponding indication signal based on the monitoring result of the monitoring module, or to output a corresponding status signal based on the operating state of the battery control chip.

[0016] In the technical solution of this application embodiment, by continuously supplying power to the Ethernet module, monitoring module, watchdog module, and input / output devices through the second power supply, and by monitoring the message signals of the network composed of the Ethernet modules through the monitoring module, and by timing the target type signal in the message signals through the watchdog module, when it is necessary to wake up the first power supply and processing module that is turned off, the Ethernet module and monitoring module can confirm the target type signal in the message signal corresponding to the wake-up, and through the monitoring module or watchdog module, trigger the input / output devices to provide corresponding indication signals or status signals, so as to turn on the first power supply and processing module in each battery control chip, quickly restore the cooperative operation between battery control chips, or display the current status of the battery control chip, thereby improving the response speed of the battery control chip and thus improving the reliability of the battery control chip.

[0017] In some embodiments, the processing module includes a storage unit for storing configuration information of the EtherCAT slave control unit.

[0018] In the technical solution of this application embodiment, by using the storage unit in the processing module to store the configuration information of the EtherCAT slave control unit, the integration of the battery control chip can be improved, thereby saving the space required by the battery control chip, reducing the space requirements and cost of the circuit board or device where the battery control chip is located, and improving the ease of use of the battery control chip.

[0019] Secondly, this application provides a battery management system, including the aforementioned battery control chip.

[0020] Thirdly, this application provides a battery device including the aforementioned battery management system.

[0021] Fourthly, this application provides an electrical device, including the aforementioned battery device.

[0022] It is understood that the beneficial effects of the second, third and fourth aspects mentioned above can be found in the relevant descriptions in the first aspect mentioned above, and will not be repeated here.

[0023] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of one embodiment of the battery control chip of this application;

[0026] Figure 2 This is a second schematic diagram of the structure of an embodiment of the battery control chip of this application;

[0027] Figure 3 This is the third schematic diagram of the structure of an embodiment of the battery control chip of this application;

[0028] Figure 4 This is the fourth schematic diagram of the structure of an embodiment of the battery control chip of this application;

[0029] Figure 5 This is the fifth schematic diagram of an embodiment of the battery control chip of this application;

[0030] Figure 6 This is a schematic diagram of the structure of one embodiment of the battery control chip of this application;

[0031] Figure 7 This is the seventh schematic diagram of an embodiment of the battery control chip of this application;

[0032] Figure 8 This is one of the structural schematic diagrams of an embodiment of the Ethernet module of this application;

[0033] Figure 9 This is a second schematic diagram of the structure of an embodiment of the Ethernet module of this application;

[0034] Figure 10 This is the eighth schematic diagram of the structure of an embodiment of the battery control chip of this application;

[0035] Figure 11 This is the ninth schematic diagram of the structure of an embodiment of the battery control chip of this application;

[0036] Figure 12 This is a schematic diagram of the structure of one embodiment of the battery management system of this application;

[0037] Figure 13 This is a schematic diagram of the structure of one embodiment of the battery device of this application;

[0038] Figure 14 This is a schematic diagram of the structure of an embodiment of the electrical device of this application.

[0039] Reference numerals: 11, First power supply; 12, Second power supply; 13, Processing module; 131, Storage unit; 14, Ethernet module; 141, EtherCAT slave control unit; 142, Media access control unit; 143, Media access control security unit; 144, Physical layer unit; 15, Monitoring module; 16, Watchdog module; 17, Input / output device; 21, Battery control chip; 31, Battery management system; 41, Battery device. Detailed Implementation

[0040] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0042] In the description of the embodiments of this application, the technical terms "first", "second", etc. are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features.

[0043] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0044] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0045] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0046] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0047] With the development of the times, the new energy field has placed increasingly higher demands on the stable operation and rapid response capabilities of batteries.

[0048] The battery control chip can refer to an EtherCAT master chip or an EtherCAT slave chip. The EtherCAT slave chip may include an EtherCAT slave control unit. It can generate and send initial message signals to the network composed of various EtherCAT master chips and EtherCAT slave chips through the processing module in the EtherCAT master chip. Each EtherCAT slave chip can then adjust the message signal according to its own condition. Finally, the message signal obtained after adjustment by all EtherCAT slave chips is transmitted back to the EtherCAT master chip, completing one data transmission. The EtherCAT master chip can analyze the status of each node (each battery control chip) in the entire network based on the message signal to perform corresponding control on each node.

[0049] The drawback of existing technology is that, in current battery control systems, the processing module and the Ethernet module are usually powered by the same power source. Therefore, the unified sleep and wake-up control of the processing module and the Ethernet module can only be achieved by controlling the power supply of this same power source. However, after both the processing module and the Ethernet module are powered off and in sleep mode, if they need to be powered on, they need to be woken up. This process takes a considerable amount of time to establish a network between the battery control chips to restore their coordinated operation. As a result, the response speed of existing battery control chips is slow, and therefore the reliability of the battery control chips is low.

[0050] Based on the above considerations, this application provides a battery control chip, a battery management system, a battery device, and a power consumption device. The battery control chip includes: a first power supply; a second power supply; a processing module, wherein the first power supply is connected to the processing module to supply power to the processing module; and an Ethernet module, wherein the second power supply is connected to the Ethernet module to supply power to the Ethernet module. Based on the above approach, the reliability of the battery control chip can be improved.

[0051] This application proposes a battery control chip, see [link to relevant documentation] Figure 1 , Figure 1 This is a schematic diagram of one embodiment of the battery control chip of this application, as shown below. Figure 1 As shown, the battery control chip includes a first power supply 11, a second power supply 12, a processing module 13, and an Ethernet module 14.

[0052] The first power supply 11 is connected to the processing module 13 to supply power to the processing module 13.

[0053] The first power supply 11 may include at least one power supply, and the processing module 13 may include a processing unit, a storage unit, a memory unit, and other types of units.

[0054] The first power supply 11 can be used to supply power to the processing unit, storage unit, memory unit and other types of units in the processing module 13. The processing unit can be a central processing unit (CPU), the storage unit can be random access memory (RAM), and the memory unit can be a memory protection unit (MPU).

[0055] The second power supply 12 is connected to the Ethernet module 14 to supply power to the Ethernet module 14.

[0056] The second power supply 12 can be a standby (STB) power supply, and the Ethernet module 14 can include various types of modules for data transmission.

[0057] Specifically, the first power supply 11 in the battery control chip can be turned off to shut down the processing module 13, and the second power supply 12 in the battery control chip can be kept on to maintain the operation of the Ethernet module 14, so that the battery control chip enters a low-power sleep state, thereby enabling the battery control chips to form a network. Through the battery control chip at any node in the network, a corresponding message signal is sent in the network. Based on the message signal, the first power supply 11 of each battery control chip is turned on to supply power to the processing module 13, thereby controlling the battery control chip to exit the low-power sleep state and resume the operating state.

[0058] Based on the above method, when the processing module 13 needs to be woken up, the first power supply 11 and processing module 13 in each battery control chip can be turned on quickly through the network formed by the Ethernet modules 14 that keep operating in each battery control chip, so as to quickly restore the cooperative operation between the battery control chips, improve the response speed of the battery control chip, and thus improve the reliability of the battery control chip.

[0059] In this application, by integrating the processing module and the Ethernet module into the same battery control chip and configuring them with corresponding power supplies, the battery control chip can keep the Ethernet module powered on and operational even when the processing module is in a power-off sleep state. That is, when the first power supply stops while the second power supply continues to supply power, not only can the power consumption of the battery control chip be kept low, but the operation of the Ethernet module can also be maintained. When it is necessary to wake up the processing module, the network formed by the Ethernet modules that are still operating in each battery control chip can be used to quickly turn on the first power supply and the processing module in each battery control chip, quickly restore the coordinated operation between the battery control chips, improve the response speed of the battery control chip, and thus improve the reliability of the battery control chip.

[0060] In some embodiments, see Figure 2 , Figure 2 This is a second schematic diagram of the structure of an embodiment of the battery control chip of this application, as shown below. Figure 2 As shown, the Ethernet module 14 includes an EtherCAT slave control unit 141.

[0061] The second power supply 12 is used to power the EtherCAT slave control unit 141.

[0062] Specifically, the battery control chip can be as follows: Figure 1 The EtherCAT master chip shown can also be as follows: Figure 2 The EtherCAT slave chip shown has an EtherCAT slave control unit 141.

[0063] Based on the above method, in an EtherCAT system network composed of an EtherCAT master chip and multiple EtherCAT slave chips, since the second power supply 12 is kept on regardless of whether the first power supply 11 is turned on, the EtherCAT system network can always remain operational based on the second power supply 12. This improves the reliability of the battery control chips by enabling faster wake-up of each battery control chip based on the EtherCAT system network that remains operational even after the first power supply 11 is turned off and the battery control chips enter a low-power sleep state.

[0064] In this application, by integrating the processing module and the Ethernet module with EtherCAT slave control unit into the same battery control chip and configuring them with corresponding power supplies, the battery control chip can maintain the power supply and operation of the EtherCAT slave control unit even when the processing module is in a power-off sleep state. That is, when the first power supply stops while the second power supply continues to supply power, not only can the power consumption of the battery control chip be kept low, but the operation of the EtherCAT slave control unit can also be maintained. When it is necessary to wake up the processing module, the network formed by the EtherCAT slave control units that are still operating in each battery control chip can be used to quickly turn on the first power supply and processing module in each battery control chip through the transmission of corresponding message signals between each battery control chip, thereby quickly restoring the coordinated operation between the battery control chips, improving the response speed of the battery control chip, and thus improving the reliability of the battery control chip.

[0065] Optionally, see Figure 3 , Figure 3 This is a third schematic diagram of an embodiment of the battery control chip of this application, as shown below. Figure 3 As shown, the processing module 13 includes a storage unit 131.

[0066] Storage unit 131 is used to store configuration information of EtherCAT slave control unit 141.

[0067] Specifically, the storage unit 131 can be a Flash memory, a non-volatile memory (NVM), or other types of storage-capable units located within the processing module 13. The specific type can be determined according to actual needs and is not limited here.

[0068] By utilizing the storage unit 131 within the battery control chip to store the configuration information of the EtherCAT slave control unit 141, compared to the conventional technology that uses externally configured memory (such as Electrically Erasable Programmable Read Only Memory, EEPROM) for storing configuration information, since both are located within the same chip, the response speed and security of communication between the storage unit 131 and the EtherCAT slave control unit 141 can be improved. Furthermore, since there is no need to configure external memory for the battery control chip, the required space and cost of the PCB board where the battery control chip is located are reduced.

[0069] In this application, by using the storage unit in the processing module to store the configuration information of the EtherCAT slave control unit, the integration of the battery control chip can be improved, thereby saving the space required by the battery control chip, reducing the space requirements and cost of the circuit board or device where the battery control chip is located, and reducing the potential failure points that may be caused by the need to solder additional memory, thus improving the ease of use, production yield and reliability of the battery control chip.

[0070] In some embodiments, see Figure 4 and Figure 5 , Figure 4 This is the fourth schematic diagram of an embodiment of the battery control chip of this application. Figure 5 This is the fifth schematic diagram of an embodiment of the battery control chip of this application, as shown below. Figure 4 and Figure 5 As shown, the Ethernet module 14 includes a media access control unit 142 and a media access control security unit 143.

[0071] The second power supply 12 is used to power the media access control unit 142.

[0072] The media access control unit 142 is connected to the media access control security unit 143. The second power supply 12 is used to supply power to the media access control security unit 143. The media access control unit 142 is used to output corresponding signals through the media access control security unit 143.

[0073] Specifically, Figure 4 The battery control chip shown can be an EtherCAT master chip. Figure 5 The battery control chip shown can be an EtherCAT slave chip.

[0074] The media access control unit 142 can be a MAC (Media Access Control) module or other types of modules that can be used for media access control. The specific choice depends on the actual needs and is not limited here.

[0075] The media access control security unit 143 can be a MACsec (Media Access Control Security) module or other types of modules that can be used for media access control security processing. The specific type can be determined according to actual needs and is not limited here.

[0076] Based on the above method, a media access control unit 142 and a media access control security unit 143 can be integrated into the battery control chip, so that the media access control unit 142 can output corresponding signals through the media access control security unit 143 within the chip. The media access control security unit 143 can perform corresponding hardware encryption processing on the signals flowing through it, thereby improving the security and reliability of the signal output of the battery control chip.

[0077] Furthermore, by integrating the media access control unit 142 and the media access control security unit 143 into the battery control chip (EtherCAT master chip or EtherCAT slave chip) in the EtherCAT system network, the battery control chip can be analyzed for failure and designed for safety as a whole, thereby improving the vehicle safety integrity level (ASIL level) of the new energy vehicle in which the battery control chip is located. For example, the difficulty of meeting ASIL D based on the hardware architecture of the battery control chip and the corresponding software strategy is reduced, and the ease of use of the battery control chip is improved.

[0078] Furthermore, by integrating the media access control unit 142 and the media access control security unit 143 into the battery control chip, the response speed, confidentiality, and integrity of the media access control security unit 143 when performing hardware encryption processing on signals can be improved, and the delay that may exist in the process can be reduced or eliminated, thereby reducing the possibility of delay negatively affecting the EtherCAT system network and improving the security and real-time performance of data transmission.

[0079] In this application, by integrating the media access control unit and the media access control security unit into the same battery control chip and using a second power supply that is independent of the first power supply, the media access control unit and the media access control security unit can be powered at all times. This allows the communication subsystem corresponding to the battery control chip to be designed as a whole and its integration to be improved. The media access control security unit can then process the signals output by the media access control unit, thereby improving the data security of the battery control chip.

[0080] Optionally, see Figure 6 and Figure 7 , Figure 6 This is the sixth schematic diagram of an embodiment of the battery control chip of this application. Figure 7 This is the seventh schematic diagram of an embodiment of the battery control chip of this application, as shown below. Figure 6 and Figure 7 As shown, the Ethernet module 14 also includes a physical layer unit 144.

[0081] The second power supply 12 is used to supply power to the physical layer unit 144. The media access control security unit 143 is connected to the physical layer unit 144. The media access control unit 142 is used to output corresponding signals to the physical layer unit 144 through the media access control security unit 143.

[0082] Specifically, Figure 6 The battery control chip shown can be an EtherCAT master chip. Figure 7 The battery control chip shown can be an EtherCAT slave chip.

[0083] The physical layer unit 144 can be a physical layer (PHY), or other types of units used for encoding, decoding, modulation, demodulation, or providing physical interfaces for signals. The specific type can be determined according to actual needs and is not limited here.

[0084] Based on the above method, a media access control unit 142, a media access control security unit 143, and a physical layer unit 144 can be integrated into the battery control chip. This allows the media access control unit 142 to output corresponding signals through the media access control security unit 143 and the physical layer unit 144 within the chip. The media access control security unit 143 can perform corresponding hardware encryption processing on the signals flowing through it, and the physical layer unit 144 can output the encrypted signals (such as message signals in the EtherCAT system network or other types of signals), thereby improving the security and reliability of the signal output of the battery control chip.

[0085] Furthermore, it should be noted that when the Ethernet module 14 is not configured with a physical layer unit 144, an external physical layer can be configured for the battery control chip. The physical layer can be configured according to the actual application scenario. For example, when special isolation or long-distance transmission is required, the corresponding type of physical layer can be configured to support the corresponding fiber optic transmission extension operation, thereby improving the applicability of the battery control chip.

[0086] When the Ethernet module 14 is equipped with a physical layer unit 144, the media access control unit 142, the media access control security unit 143, and the physical layer unit 144 can be tightly coupled through the bus inside the battery control chip. Only a few resistors, capacitors, isolation transformers, and connectors are needed to form a complete node in the EtherCAT system network (the node of the EtherCAT master chip or the EtherCAT slave chip), which improves the integration of the battery control chip.

[0087] In this application, by integrating the media access control unit, the media access control security unit, and the physical layer unit into the same battery control chip, and using a second power supply that is independently set relative to the first power supply, the media access control unit, the media access control security unit, and the physical layer unit can be powered at all times. This allows the communication subsystem corresponding to the battery control chip to be designed as a whole for corresponding security and further improves the integration. The media access control security unit performs corresponding data processing on the signals output by the media access control unit, thereby improving the data security of the battery control chip.

[0088] For example, see Figure 8 and Figure 9 , Figure 8 This is one of the structural schematic diagrams of an embodiment of the Ethernet module of this application. Figure 9 This is a second structural schematic diagram of an embodiment of the Ethernet module of this application, as shown below. Figure 8 and Figure 9 As shown, the battery control chip may include at least two sets of communication units.

[0089] Specifically, Figure 8 The battery control chip shown can be an EtherCAT master chip. Figure 9 The battery control chip shown can be an EtherCAT slave chip.

[0090] In one example, the battery control chip may include two sets of communication units, namely a first set of communication units A and a second set of communication units B. Each set of communication units may include a media access control unit 142, a media access control security unit 143, and a physical layer unit 144. In addition, the communication unit set of the EtherCAT slave chip is also configured with an EtherCAT slave control unit 141 relative to the EtherCAT master chip.

[0091] In other examples, the battery control chip may include two or more sets of communication units, such as 3, 5, 7, or other numbers, which are not limited here.

[0092] Based on the above approach, at least two communication interfaces built on a set of communication units can be integrated inside the battery control chip, enabling the battery control chips to support linear, tree, redundant ring network topology and other types of topological connection structures.

[0093] In some embodiments, see Figure 10 and Figure 11 , Figure 10 This is the eighth schematic diagram of an embodiment of the battery control chip of this application. Figure 11This is the ninth schematic diagram of an embodiment of the battery control chip of this application, as shown below. Figure 10 and Figure 11 As shown, the battery control chip also includes a monitoring module 15 and a watchdog module 16.

[0094] The second power supply 12 is connected to the monitoring module 15 to supply power to the monitoring module 15, which is used to monitor the message signals output by the Ethernet module.

[0095] The second power supply 12 is connected to the watchdog module 16 to supply power to the watchdog module 16, which is used to perform timing processing on the target type signal segment in the monitoring module 15.

[0096] Specifically, the battery control chip can be an EtherCAT master chip or an EtherCAT slave chip in an EtherCAT system network.

[0097] The monitoring module 15 can be used to monitor the message signals sent or transmitted by each battery control chip. For example, it can monitor the message signal in the sleep state described above. When a heartbeat frame or target type signal segment (such as information containing a preset wake-up message) generated by a certain battery control chip is detected in the message signal, the processing module 13 of the EtherCAT master chip and each EtherCAT slave chip can be triggered to wake up from the sleep state through the message signal, so as to restore the full operation of the entire EtherCAT system network by using the preset simplified initialization process in the processing module 13.

[0098] Since the second power supply 12 can always supply power to the Ethernet module 14 during the process, the basic functions of the EtherCAT system network built by the Ethernet module 14 are always maintained, reducing the time required for networking. Therefore, the full functionality of the entire EtherCAT system network can be restored more quickly. For example, compared with traditional technology, the recovery time of seconds can be shortened to milliseconds, improving the response speed of the battery control chip.

[0099] The watchdog module 16 can refer to a watchdog module or other types of timing modules, which can be used to time the interval between the occurrence of various types of frames or signal segments or other information in the message signal, in order to confirm whether the process corresponding to the corresponding type of frame or signal segment or other information is operating normally.

[0100] In this application, by continuously supplying power to the Ethernet module, monitoring module, and watchdog module through the second power supply, and by monitoring the message signals of the network composed of the Ethernet modules through the monitoring module, and by timing the target type signal in the message signals through the watchdog module, when it is necessary to wake up the first power supply and processing module that has been turned off, the Ethernet module and monitoring module can confirm the target type signal in the message signal corresponding to the wake-up, and the watchdog module can provide the corresponding indication signal to turn on the first power supply and processing module in each battery control chip, quickly restore the coordinated operation between the battery control chips, improve the response speed of the battery control chips, and thus improve the reliability of the battery control chips.

[0101] Optionally, the battery control chip also includes an input / output element 17.

[0102] The second power supply 12 is connected to the input / output unit 17 to supply power to the input / output unit 17. The input / output unit 17 is used to output corresponding indication signals based on the monitoring results of the monitoring module 15, or to output corresponding status signals based on the operating status of the battery control chip.

[0103] Specifically, the input / output device 17 can be a GPIO (General Purpose Input / Output) that is always powered by the second power supply 12. It can be used to pull high when the monitoring module 15 detects a wake-up message or heartbeat frame and pull low at other times, so as to trigger the corresponding battery control chip to wake up from the sleep state when a wake-up message or heartbeat frame is detected. It can also be used to periodically output the corresponding type of pulse signal as a watchdog signal for the watchdog module 16 to indicate the operating status of the corresponding process or module.

[0104] In this application, by continuously supplying power to the Ethernet module, monitoring module, watchdog module, and input / output devices through a second power supply, and by monitoring the message signals of the network composed of the Ethernet modules through the monitoring module, and by timing the target type signals in the message signals through the watchdog module, when it is necessary to wake up the first power supply and processing module that is turned off, the Ethernet module and monitoring module can confirm the target type signal in the message signal corresponding to the wake-up, and through the monitoring module or watchdog module, trigger the input / output devices to provide corresponding indication signals or status signals, so as to turn on the first power supply and processing module in each battery control chip, quickly restore the coordinated operation between battery control chips, or display the current status of the battery control chips, thereby improving the response speed of the battery control chips and thus improving the reliability of the battery control chips.

[0105] For example, suppose the second power supply 12 can be a standby (STB) power supply.

[0106] Ethernet module 14 may include media access control unit 142, media access control security unit 143 and physical layer unit 144. Media access control unit 142 may be a MAC (Media Access Control) module, media access control security unit 143 may be a MACsec (Media Access Control Security) module, and physical layer unit 144 may be a physical layer (PHY).

[0107] The processing module 13 includes a storage unit 131, which is used to store the configuration information of the EtherCAT slave control unit 141 (such as station address, synchronization unit configuration, etc.). The storage unit 131 can be a Flash memory or a non-volatile memory (NVM). When the processing module 13 wakes up from the sleep state, the configuration information can be directly loaded from the storage unit 131, which improves the response speed of the battery control chip.

[0108] The monitoring module 15 can be used to monitor the message signals sent or transmitted by each battery control chip. For example, it can monitor the message signals in the sleep state described above.

[0109] Watchdog module 16 can refer to a Watch Dog module or other types of timing modules.

[0110] The input / output device 17 can be a GPIO (General Purpose Input / Output) that is always powered by the second power supply 12. The input / output device 17 can be used to monitor the heartbeat frame or wake-up signal in the message signal to determine whether it is necessary to switch from output low level to output high level to wake up the battery control chip in the sleep state. It can also periodically output the pulse corresponding to the corresponding process to indicate whether the running status of the corresponding process is normal. That is, arbitrary input and output processing can be performed at any time through the input / output device 17 to improve the reliability of the battery control chip.

[0111] First, if the battery control chip can be an EtherCAT slave chip, then relative to the EtherCAT master chip, the Ethernet module 14 also includes an EtherCAT slave control unit 141.

[0112] Second, if the battery control chip can be an EtherCAT master chip, then the Ethernet module 14 may not have an EtherCAT slave control unit 141 compared to the EtherCAT slave chip.

[0113] In one example, multiple battery control chips may include an EtherCAT master chip and multiple EtherCAT slave chips.

[0114] When it is necessary to enter a sleep state, the first power supply 11 can be turned off while the second power supply 12 is kept on when all battery control chips are powered by the first power supply 11 and the second power supply 12 at the same time. This allows the processing modules 13 of each battery control chip to enter a sleep state, while the Ethernet module 14 remains operational and can control the input / output devices 17 of the EtherCAT master chip to output a low level.

[0115] When it is necessary to enter the operating state, specifically any battery control chip, such as an EtherCAT slave chip, may need to wake up all battery control chips. In this case, the message signal output by the input / output device 17 of the EtherCAT slave chip can be filled with a heartbeat frame or wake-up signal. The message signal with the heartbeat frame or wake-up signal can be sent to the EtherCAT master chip through each EtherCAT slave chip. After the monitoring module 15 of the EtherCAT master chip detects the heartbeat frame or wake-up signal from the message signal, it can control the input / output device 17 of the EtherCAT master chip to output a high level to trigger the first power supply 11 to turn on. This causes the processing module 13 of the EtherCAT master chip to exit the sleep state and enter the operating state. In turn, the EtherCAT master chip controls the processing modules 13 of each EtherCAT slave chip to also exit the sleep state and enter the operating state.

[0116] Based on the above method, since the basic functions of the EtherCAT system network constructed by the Ethernet module 14 are always in operation, the time required for networking is reduced. Therefore, the full operation of the entire EtherCAT system network can be restored more quickly. For example, compared with traditional technology, the recovery time of seconds can be shortened to milliseconds, which improves the response speed of the battery control chip.

[0117] In another example, if the watchdog module 16 detects that the pulse of the corresponding process in the message signal of the battery control chip at a certain node of the EtherCAT system network has not been output due to timeout, or that the heartbeat frame has been lost continuously, or other abnormal conditions, this can trigger a fault interrupt and control the input / output device 17 of the battery control chip with the abnormal condition to output a low level, so as to trigger the corresponding fault handling module to perform fault handling on the battery control chip with the abnormal condition.

[0118] Based on the same technical concept, this application also proposes a battery management system, see [link to relevant documentation]. Figure 12 , Figure 12This is a schematic diagram of the structure of an embodiment of the battery management system of this application, as shown below. Figure 12 As shown, the battery management system includes a battery control chip 21. The battery control chip 21 can be any of the battery control chips described in the previous embodiments, which will not be elaborated here.

[0119] In this application, the battery control chip may also be configured with a corresponding battery management system. The battery management system (BMS) is used to perform at least one of the following functions for battery cells: state monitoring, state analysis, charge and discharge control, safety protection, thermal management, high-voltage power distribution, and information management. In addition, the battery management system in this application can also implement the functions of a controller in an electrical device, such as a vehicle control unit (VCU) or a motor control unit (MCU), etc., and this application does not impose any limitations on this.

[0120] In this application, the battery cell can be a secondary battery, which refers to a battery cell that can be recharged to activate the active materials and continue to be used after the battery cell has been discharged.

[0121] A single battery cell typically includes an electrode assembly. The electrode assembly includes a positive electrode, a negative electrode, and a separator. During the charging and discharging process of a single battery cell, active ions (e.g., lithium ions) repeatedly insert and extract between the positive and negative electrodes. The separator, positioned between the positive and negative electrodes, prevents short circuits while allowing active ions to pass through.

[0122] The battery management system in this application can be integrated as a controller into the battery device, such as into the battery pack or energy storage box.

[0123] The battery management system in this application can also be integrated as a controller into electrical devices, such as in a vehicle or vehicle chassis.

[0124] The battery management system in this application can also be integrated into the charging device as a controller, such as into the charging device or the battery swapping device.

[0125] The battery management system in this application can also be deployed as control software on a server. The server can be a standalone physical server, a server cluster or distributed system composed of multiple physical servers, or a cloud server that provides basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communication, middleware services, domain name services, security services, CDN (Content Delivery Network), and big data and artificial intelligence platforms, such as vehicle networking cloud, APP backend, etc.

[0126] In this application, by integrating the processing module and the Ethernet module into the same battery control chip and configuring them with corresponding power supplies, the battery control chip can maintain the power supply and operation of the Ethernet module even when the processing module is powered off and in sleep mode. That is, when the first power supply stops supplying power while the second power supply continues to supply power, not only can the power consumption of the battery control chip be kept low, but the operation of the Ethernet module can also be maintained. When it is necessary to wake up the processing module, the network formed by the Ethernet modules that are still operating in each battery control chip can be used to quickly turn on the first power supply and the processing module in each battery control chip, quickly restore the coordinated operation between the battery control chips, improve the response speed of the battery control chip, thereby improving the response speed of the battery management system in which the battery control chip is located, and thus improving the reliability of the battery management system.

[0127] Based on the same technical concept, this application also proposes a battery device, see [link to relevant documentation]. Figure 13 , Figure 13 This is a schematic diagram of the structure of an embodiment of the battery device of this application, as shown below. Figure 13 As shown, the battery device includes a battery management system 31, which can be any of the battery management systems described in the preceding embodiments, and will not be repeated here.

[0128] In this application, the battery device may include at least one battery management system. The connection between multiple battery management systems can be achieved through conventional methods in the art, such as series connection, parallel connection, or a hybrid connection that includes all of these connection methods. Hybrid connection refers to the series and parallel connection of multiple batteries, and there is no particular limitation thereto.

[0129] In this application, by integrating the processing module and the Ethernet module into the same battery control chip and configuring them with corresponding power supplies, the battery control chip can maintain the power supply and operation of the Ethernet module even when the processing module is powered off and in sleep mode. That is, when the first power supply stops supplying power while the second power supply continues to supply power, not only can the power consumption of the battery control chip be kept low, but the operation of the Ethernet module can also be maintained. When it is necessary to wake up the processing module, the network formed by the Ethernet modules that are still operating in each battery control chip can be used to quickly turn on the first power supply and the processing module in each battery control chip, and quickly restore the coordinated operation between the battery control chips. This improves the response speed of the battery control chip and the battery management system in which the battery control chip is located, thereby improving the response speed of the battery device in which the battery management system is located, and thus improving the reliability of the battery device.

[0130] Based on the same technical concept, this application also proposes an electrical device, see [link to relevant documentation]. Figure 14, Figure 14 This is a schematic diagram of the structure of an embodiment of the electrical device of this application, as shown below. Figure 14 As shown, the power-consuming device includes a battery device 41, which can be any of the battery devices described in the preceding embodiments, and will not be repeated here.

[0131] In this application, by integrating the processing module and the Ethernet module into the same battery control chip and configuring them with corresponding power supplies, the battery control chip can maintain the power supply and operation of the Ethernet module even when the processing module is powered off and in sleep mode. That is, when the first power supply stops supplying power while the second power supply continues to supply power, not only can the power consumption of the battery control chip be kept low, but the operation of the Ethernet module can also be maintained. When it is necessary to wake up the processing module, the network formed by the Ethernet modules that are still operating in each battery control chip can be used to quickly turn on the first power supply and the processing module in each battery control chip, and quickly restore the coordinated operation between the battery control chips. This improves the response speed of the battery control chip, the battery management system in which the battery control chip is located, and the battery device in which the battery management system is located, thereby improving the response speed of the power-consuming device in which the battery device is located, and thus improving the reliability of the power-consuming device.

[0132] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A battery control chip, characterized in that, include: First power source; Second power source; A processing module, wherein the first power supply is connected to the processing module to supply power to the processing module; An Ethernet module is provided, and the second power supply is connected to the Ethernet module to provide power to the Ethernet module.

2. The battery control chip according to claim 1, characterized in that, The Ethernet module includes: The second power supply is used to power the EtherCAT slave control unit.

3. The battery control chip according to claim 1 or 2, characterized in that, The Ethernet module includes: A media access control unit, wherein the second power supply is used to power the media access control unit; A media access control security unit is provided, the media access control unit is connected to the media access control security unit, the second power supply is used to supply power to the media access control security unit, and the media access control unit is used to output corresponding signals through the media access control security unit.

4. The battery control chip according to claim 3, characterized in that, The Ethernet module also includes: The physical layer unit is provided with a second power supply for supplying power to the physical layer unit. The media access control security unit is connected to the physical layer unit, and the media access control unit is used to output corresponding signals to the physical layer unit through the media access control security unit.

5. The battery control chip according to claim 1 or 2, characterized in that, The battery control chip also includes: A monitoring module is provided, wherein the second power supply is connected to the monitoring module to provide power to the monitoring module, and the monitoring module is used to monitor the message signals output by the Ethernet module; A watchdog module is provided, with the second power supply connected to the watchdog module to provide power. The watchdog module is used to perform timing processing on the target type signal segment in the monitoring module.

6. The battery control chip according to claim 5, characterized in that, The battery control chip also includes: The input / output device is connected to the second power supply to provide power to the input / output device. The input / output device is used to output corresponding indication signals based on the monitoring results of the monitoring module, or to output corresponding status signals based on the operating status of the battery control chip.

7. The battery control chip according to claim 2, characterized in that, The processing module includes: A storage unit is provided for storing the configuration information of the EtherCAT slave control unit.

8. A battery management system, characterized in that, Includes the battery control chip as described in any one of claims 1 to 7.

9. A battery device, characterized in that, Includes the battery management system as described in claim 8.

10. An electrical device, characterized in that, Includes the battery device as described in claim 9.

Images