Equipment for remote diagnosis and control of battery pack

Abstract

The utility model relates to a device for remote diagnosis and control of a battery pack, which comprises a data acquisition unit, a data processor and a communicator, and is characterized in that the data acquisition unit is used for acquiring and transmitting battery data information; the data processor is connected with the data collector and is used for receiving and processing the battery data information; the communicator is connected with the data processor and comprises a CAN communicator and a wireless communicator; wherein the CAN communicator is used for sending the received CAN data information to the data processor, and the data processor is also used for receiving and processing the CAN data information; and the wireless communicator is used for sending the battery data information and the CAN data information processed by the data processor to a cloud platform, and is also used for receiving control information issued by the cloud platform and sending the control information to the CAN communicator. According to the utility model, interconnection and intercommunication among the battery swap stations as well as among batteries, vehicles and operators can be realized, control information can be remotely issued through the cloud platform, and the safety of products is improved.

Description

Technical Field

[0001] This application relates to the field of batteries, and particularly to a device for remote diagnosis and control of battery packs. Background Art

[0002] Power batteries play a crucial role in the total investment of battery swapping stations and are important assets that require dynamic monitoring throughout their life cycle. However, there is currently a phenomenon of extensive management. The diversity of battery technologies increases the complexity of operation and maintenance management, and the lack of consistent safety standards and management systems may lead to serious safety accidents such as thermal runaway. During the use of batteries, they experience thousands of charge and discharge cycles. Due to the lack of performance monitoring and safety monitoring tools, they cannot receive and process battery alarm information in a timely manner, increasing the usage risk. At the same time, the lack of battery charge and discharge data affects the health assessment and cannot expand businesses such as battery banks and cascade utilization. Currently, a more detailed battery management system and a more intelligent asset tracking tool are urgently needed.

[0003] The current battery swapping scenario involves upstream and downstream software and hardware suppliers, midstream battery swapping station construction operators, downstream diversified scenario services, and financial institutions. The incompatibility of different brands and systems forms a barrier to industrial integration. Summary of the Utility Model

[0004] This application provides a device for remote diagnosis and control of battery packs, which can solve the problem that batteries cannot be interconnected and resource shared among battery swapping stations, between batteries and vehicles, and between operators during use in related technologies.

[0005] An embodiment of this application provides a device for remote diagnosis and control of battery packs, which includes: a data collector, a data processor, and a communicator. The data collector is used to acquire and transmit battery data information externally; the data processor is connected to the data collector and is used to receive and process battery data information; the communicator is connected to the data processor. The communicator includes a CAN communicator and a wireless communicator. Among them, the CAN communicator is used to send the received CAN data information to the data processor, and the data processor is also used to receive and process CAN data information; the wireless communicator is used to send the battery data information and CAN data information processed by the data processor to the cloud platform, and is also used to receive the control information sent by the cloud platform and send it to the CAN communicator.

[0006] In one embodiment, the battery data information includes acceleration data information and temperature data information;

[0007] The data collector includes: a collision detection module and a temperature acquisition module. The collision detection module is used to obtain and transmit the acceleration data information of the battery; the temperature acquisition module is used to obtain and transmit the temperature data information of the battery exchange connector.

[0008] In one embodiment, the data processor includes: an acceleration data processing module and a temperature data processing module, the acceleration data processing module is connected to the collision detection module and is used to receive and process acceleration data information; the temperature data processing module is connected to the temperature acquisition module and is used to receive and process temperature data information.

[0009] In one embodiment, the acceleration data processing module includes an acceleration identification submodule for identifying a range of acceleration data, and the acceleration identification submodule is used to send an acceleration normal signal or an acceleration alarm signal to the wireless communicator.

[0010] In one embodiment, the temperature data processing module includes a temperature identification submodule for identifying a range of temperature data, and the temperature identification submodule is used to send a normal temperature signal or a temperature alarm signal to the wireless communicator.

[0011] In one embodiment, the data processor includes a CAN data processing module for receiving and processing CAN data information, and the CAN data processing module is connected to a CAN communicator.

[0012] In one embodiment, the device further includes a first encryption / decryption device connected to both the data processor and the wireless communicator, and configured to encrypt or decrypt processed battery data information, CAN data information, and control information.

[0013] In one embodiment, the device further includes a second encryption / decryption device, which is connected to both the CAN communicator and the external vehicle-side CAN bus, and is used to encrypt or decrypt battery bus data information.

[0014] In one embodiment, the device further includes a power module, which is connected to the data collector, the data processor, the communicator, and the first encryption / decryption device.

[0015] In one embodiment, the data collector, data processor and communicator switch to a sleep mode when the sleep condition is met.

[0016] The beneficial effects of the technical solutions provided in the embodiments of the present application include:

[0017] The embodiment of the present application provides a device for remote diagnosis and control of a battery pack, which solves the barriers among battery swapping stations, between the battery and the vehicle, and between operators in the scenario of battery swapping heavy trucks, builds a data channel bridge between the battery system of the battery swapping heavy truck and the cloud monitoring platform, and through the data collector, the data processor and the communicator, it can monitor the battery data information of the battery pack of the battery swapping heavy truck in real time and upload it to the cloud platform, providing data support for the health management and cascade utilization of the battery, enabling interconnection and resource sharing among battery swapping stations, between the battery and the vehicle, and between operators, and also being able to remotely issue control information through the cloud platform to improve the safety of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 It is a structural block diagram of the device for remote diagnosis and control of the battery pack provided by the embodiment of the present application.

[0020] In the figure: 1. Power supply module; 2. Data collector; 20. Collision detection module; 21. Temperature acquisition module; 3. Data processor; 30. Acceleration data processing module; 31. Temperature data processing module; 32. CAN data processing module; 4. Communicator; 40. CAN communicator; 41. Wireless communicator; 5. Cloud platform; 6. Vehicle-side CAN bus; 7. First encryption and decryption device. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to enable those skilled in the art to better understand the solution of the present application, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0022] The embodiment of the present application provides a device for remote diagnosis and control of a battery pack, which can solve the problem that in the related art, during the use of the battery, there is no interconnection and resource sharing among battery swapping stations, between the battery and the vehicle, and between operators.

[0023] See Figure 1As shown in the figure, an apparatus for remote diagnosis and control of a battery pack according to an embodiment of the present application includes: a data collector 2, a data processor 3, and a communicator 4. The data collector 2 is configured to obtain and transmit battery data information; the data processor 3 is connected to the data collector 2 and is configured to receive and process the battery data information; the communicator 4 is connected to the data processor 3, and the communicator 4 includes a CAN communicator 40 and a wireless communicator 41; wherein, the CAN communicator 40 is configured to send the received CAN data information to the data processor 3, and the data processor 3 is further configured to receive and process the CAN data information; the wireless communicator 41 is configured to send the battery data information and the CAN data information processed by the data processor 3 to the cloud platform 5, and is further configured to receive the control information sent by the cloud platform 5 and send it to the CAN communicator 40.

[0024] In the present application, the barriers between battery swapping stations, between batteries and vehicles, and between operators in the battery swapping heavy truck scenario are solved, and a data channel bridge between the battery system of the battery swapping heavy truck and the cloud monitoring platform is built. Through the cooperation of the data collector 2, the data processor 3 and the communicator 4, the battery data information of the battery pack of the battery swapping heavy truck is monitored in real time and uploaded to the cloud platform 5, providing data support for the health management and cascade utilization of the battery, enabling interconnection and resource sharing between battery swapping stations, between batteries and vehicles, and between operators, and also enabling remote control information to be sent from the cloud platform 5 remotely to improve the safety of the product.

[0025] Among them, the function of the CAN communicator 4 in the communicator 4 is to be compatible with the CAN communication of the battery and the whole vehicle, obtain the external signals of the battery and the whole vehicle, and hand them over to the data processor 3 for processing. The main function of the wireless communicator 41 is to transmit the data analyzed and processed by other modules to the cloud platform 5, and is also responsible for receiving and transmitting the control instructions or software update data packets sent by the cloud platform 5. Therefore, in addition to processing data and uploading it to the cloud platform 5, the device can also implement remote control or remote upgrade according to the data sent by the cloud platform 5 when necessary. For example, when the background monitors an abnormal state of the vehicle, the risk can be reduced by sending an instruction from the cloud platform 5 to limit the battery startup; problems can also be solved by remotely pushing an upgrade package during troubleshooting.

[0026] Based on the above embodiments, in this embodiment, the data processor 3 plays a core role in the battery edge perception device. Its main function is to parse and process the collected data, and send the collected data to the intelligent monitoring platform through encryption means, and at the same time implement the conduction of the instructions or upgrade packages sent by the cloud. In this embodiment, the data collector 2 is configured to obtain and transmit battery data information, wherein,

[0027] the battery data information includes acceleration data information and temperature data information, and the data collector 2 includes: a collision detection module 20 and a temperature acquisition module 21.

[0028] Specifically, the collision detection module 20 is used to obtain and transmit the acceleration data information of the battery: To further ensure the safety of vehicles, personnel and equipment, this device is equipped with a collision detection function; the device collects collision characteristic signals through an acceleration sensor, and through the software algorithm of the device, the data processor 3 analyzes the data collected by the acceleration sensor to finally judge the safety state of the vehicle. If the data processor 3 determines through the algorithm that the vehicle has collided, it will generate an acceleration alarm signal within a short time and send it to the BMS and the cloud platform 5 through the wireless communicator 41, so that the battery and the cloud can take safety measures in time.

[0029] The temperature acquisition module 21 is used to obtain and transmit the temperature data information of the battery swapping connector: The temperature acquisition module 21 of this device is mainly used to monitor the temperature of the battery swapping connector, but it needs to be used in conjunction with an external temperature sensor. The temperature acquisition module 21 processes the characteristic signals sent by the thermistor through a circuit or an algorithm, which facilitates the data processor 3 to obtain the temperature and make a judgment on the temperature.

[0030] Correspondingly, the data processor 3 includes: an acceleration data processing module 30 and a temperature data processing module 31.

[0031] Specifically, the acceleration data processing module 30 is connected to the collision detection module 20 and is used to receive and process the acceleration data information:

[0032] When the acceleration data processing module 30 receives the analog quantity of the acceleration sensor, the acceleration data processing module 30 will analyze these data. In addition, the acceleration data processing module 30 further includes an acceleration identification sub-module for identifying the range where the acceleration data is located; after identification, the acceleration identification sub-module sends an acceleration normal signal or an acceleration alarm signal to the wireless communicator 41: The acceleration identification sub-module compares the acceleration data information with the normal acceleration range. If the detected acceleration data exceeds the normal acceleration range, it will be judged as an abnormal state and an acceleration alarm signal will be sent to the wireless communicator 41; if the detected acceleration data is within the normal acceleration range, it will be judged as a normal state and an acceleration normal signal will be sent to the wireless communicator 41.

[0033] Further, if the detected acceleration data exceeds the normal acceleration range, the acceleration recognition sub-module can also divide the severity of the abnormal state according to the value of the acceleration data exceeding the normal acceleration range. In this embodiment, the severity levels are set as the first-level abnormal state, the second-level abnormal state, and the third-level abnormal state: the first-level abnormal state means that the acceleration data exceeds the normal acceleration range and is less than the first abnormal threshold; the second-level abnormal state means that the acceleration data exceeds the first abnormal threshold and is less than the second abnormal threshold; the third-level abnormal state means that the acceleration data exceeds the second abnormal threshold and is less than the third abnormal threshold. Correspondingly, therefore, if the severity level is the first-level abnormal state, the acceleration recognition sub-module sends a first-level acceleration alarm signal to the wireless communicator 41; if the severity level is the second-level abnormal state, the acceleration recognition sub-module sends a second-level acceleration alarm signal to the wireless communicator 41; if the severity level is the third-level abnormal state, the acceleration recognition sub-module sends a third-level acceleration alarm signal to the wireless communicator 41. And the wireless communicator 41 sends alarm information to the cloud platform 5 and the BMS, and the BMS and the cloud platform 5 take corresponding processing measures according to their respective strategies.

[0034] The temperature data processing module 31 is connected to the temperature acquisition module 21 and is used to receive and process temperature data information: the temperature data processing module 31 receives the resistance analog quantity of the temperature sensor on the battery swapping connector in real time and obtains the actual temperature value by looking up the table according to the parameter table between the resistance of the temperature sensor and the temperature.

[0035] Further, the temperature data processing module 31 includes a temperature recognition sub-module for identifying the range where the temperature data is located. The temperature recognition sub-module is used to send a temperature normal signal or a temperature alarm signal to the wireless communicator 41: if the actual temperature value is within the normal operating range, the temperature data processing module 31 will send the state of the electrical connector, relevant temperature data, and the temperature normal signal to the cloud platform 5. If a temperature anomaly is detected, that is, the actual temperature value exceeds the normal operating range, the temperature data processing module 31 will send the judged anomaly to the BMS and the cloud platform 5 in the form of a temperature alarm signal, and the BMS and the cloud platform 5 will take corresponding processing measures according to their respective strategies.

[0036] Further, the data processor 3 further includes a CAN data processing module 32 for receiving and processing CAN data information. The CAN data processing module 32 is connected to the CAN communicator 40: after processing the CAN data information, the CAN data processing module 32 uploads it to the cloud platform 5.

[0037] Based on the above embodiments, in this embodiment, the device further includes a first encryption / decryption unit 7, which is connected to both the data processor 3 and the wireless communicator 41. The first encryption / decryption unit 7 is used to encrypt or decrypt the processed battery data information, CAN data information, and control information.

[0038] In this embodiment, to ensure the data security of the data processor 3 during data transmission, it is necessary to encrypt the transmitted data. Further, the device also includes a second encryption / decryption unit, which is connected to both the CAN communicator 40 and the external vehicle-side CAN bus 6. The second encryption / decryption unit is used to encrypt or decrypt the battery bus data information.

[0039] Therefore, in addition to encrypting or decrypting the data through the CAN communication protocol for the battery bus data, the device will also encrypt or decrypt the data sent by the wireless communicator 41 through the first encryption / decryption unit 7 to ensure the security of the wireless data. Among them, the encryption of the wireless data can be achieved through the MCU algorithm or by using an independent hardware encryption chip for processing.

[0040] Based on the above embodiments, in this embodiment, the device further includes a power supply module 1, which is connected to the data collector 2, the data processor 3, and the communicator 4.

[0041] In this embodiment, the main functions of the power supply module 1 are to provide stable power supply, isolate input and output, protect the device in case of abnormal power input, and improve the voltage compatibility of the device for the data collector 2, the data processor 3, the communicator 4, and the first encryption / decryption unit 7. At the same time, the power supply module 1 is also designed with a UPS power supply function to ensure that when the 12V or 24V voltage provided by the whole vehicle is lost, the device can be powered by the battery system through voltage reduction to maintain operation. In this way, it can ensure that in the abnormal situation of being separated from the vehicle, the device can continuously monitor various states of the battery to ensure property safety.

[0042] In this embodiment, it has the functions of controlling high and low voltages and up and down operations, and can control the device from getting high voltage. In scenarios such as when the battery is used unexpectedly or stolen, it can control the battery from being used to ensure asset safety. The in-vehicle T-BOX does not have this function.

[0043] Based on the above embodiments, in this embodiment, when the data collector 2, the data processor 3, and the communicator 4 meet the sleep conditions, they switch to the sleep mode.

[0044] Specifically, when the device is not used for a long time, it needs to enter the sleep state, and when it resumes use, it needs to be woken up again. This can save power on the one hand and reduce the usage intensity of components on the other hand, prolonging the service life of the device. There are several key parts in the design of the sleep and wake-up functions as follows:

[0045] Design of the sleep mode: Define the sleep mode of the device, including power consumption, remaining available functions, etc. That is to say, when the data collector 2, data processor 3, and communicator 4 meet the sleep conditions, they switch to the sleep mode. In the sleep mode, some necessary functions need to be retained.

[0046] Design of energy management: Design an energy management strategy, including turning off unnecessary hardware and software functions. Configure a power management unit in the power module 1 to ensure that the key parts of the device remain powered in the sleep mode. This part requires a coordinated design of software and hardware.

[0047] Design of the sleep trigger mechanism: Implement the sleep trigger logic. When the sleep conditions are met (such as the device has not been operated for a long time, the network connection is disconnected), automatically switch the device to the sleep mode. Design the data saving process before sleep to ensure that important data is not lost.

[0048] Design of the wake-up mechanism: This function needs to design a wake-up mechanism to ensure that when the battery runs again, the device can re-enter the formal working state. In this embodiment, multiple wake-up methods will be designed to facilitate better waking up of the device, such as hard-wired wake-up, communication wake-up, etc.

[0049] In summary, through the integration of functions such as remote monitoring and remote control, this application can achieve remote diagnosis and remote control of the battery pack. By integrating functions such as temperature monitoring and data diagnosis of the battery swapping connector, collision monitoring and data diagnosis, etc., and through remote local data collection and remote data diagnosis, the safety of the product is improved, thereby protecting property and personnel safety.

[0050] In the description of this application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to this application. Unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0051] It should be noted that in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0052] The above are only specific embodiments of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application will not be limited to these embodiments shown herein, but rather will be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. An apparatus for remote diagnosis and control of a battery pack, characterized in that, It includes: A data collector (2) for acquiring and transmitting battery data information; A data processor (3) connected to the data collector (2) and for receiving and processing the battery data information; A communicator (4) connected to the data processor (3), the communicator (4) including a CAN communicator (40) and a wireless communicator (41); Wherein, the CAN communicator (40) is used to send the received CAN data information to the data processor (3), and the data processor (3) is also used to receive and process the CAN data information; The wireless communicator (41) is used to send the battery data information and CAN data information processed by the data processor (3) to the cloud platform (5), and is also used to receive the control information sent by the cloud platform (5) and send it to the CAN communicator (40).

2. The device for remote diagnosis and control of a battery pack according to claim 1, wherein: The battery data information includes acceleration data information and temperature data information; The data collector (2) includes: A collision detection module (20) for acquiring and transmitting the acceleration data information of the battery; A temperature acquisition module (21) for acquiring and transmitting the temperature data information of the battery swapping connector.

3. The device for remote diagnosis and control of a battery pack according to claim 2, characterized in that, The data processor (3) includes: An acceleration data processing module (30) connected to the collision detection module (20) and for receiving and processing the acceleration data information; A temperature data processing module (31) connected to the temperature acquisition module (21) and for receiving and processing the temperature data information.

4. The device for remote diagnosis and control of a battery pack according to claim 3, wherein: The acceleration data processing module (30) includes an acceleration identification sub-module for identifying the range where the acceleration data is located, and the acceleration identification sub-module is used to send an acceleration normal signal or an acceleration alarm signal to the wireless communicator (41).

5. The device for remote diagnosis and control of a battery pack according to claim 3, wherein: The temperature data processing module (31) includes a temperature identification sub-module for identifying the range where the temperature data is located, and the temperature identification sub-module is used to send a temperature normal signal or a temperature alarm signal to the wireless communicator (41).

6. The device for remote diagnosis and control of a battery pack according to claim 1, wherein: The data processor (3) includes a CAN data processing module (32) for receiving and processing the CAN data information, and the CAN data processing module (32) is connected to the CAN communicator (40).

7. The device for remote diagnosis and control of a battery pack according to claim 1, wherein: The device further includes a first encryption / decryption unit (7), which is connected to both the data processor (3) and the wireless communicator (41), and is configured to encrypt or decrypt the processed battery data information, CAN data information, and control information.

8. The device for remote diagnosis and control of a battery pack according to claim 7, wherein: The device further includes a second encryption / decryption unit, which is connected to both the CAN communicator (40) and the external vehicle-side CAN bus (6), and is configured to encrypt or decrypt the battery bus data information.

9. The device for remote diagnosis and control of a battery pack according to claim 7, wherein: The device further includes a power supply module (1), which is connected to the data collector (2), the data processor (3), the communicator (4), and the first encryption / decryption unit (7).

10. The device for remote diagnosis and control of a battery pack according to claim 1, wherein: When the data collector (2), the data processor (3), and the communicator (4) meet the sleep condition, they switch to the sleep mode.

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