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1. 发明公开

EP3832980A1 METHOD FOR DATA TRANSMISSION, BATTERY MANAGEMENT SYSTEM, AND STORAGE MEDIUM 有权
公开(公告)号：EP3832980A1
公开(公告)日：2021-06-09
申请号：EP21154085.1
申请日：2019-09-04
申请人： Contemporary Amperex Technology Co., Limited
发明人： LU, Wenbin , DAN, Zhimin , HOU, Yizhen , ZHANG, Wei , XU, Jia , LUO, Jiechao , YU, Teng
IPC分类号： H04L29/06 , H04L9/08 , H04L9/30 , H04L9/32 , H04W12/041
摘要： The embodiments of the present disclosure disclose a method for data transmission, comprising: authenticating (101), by a target node in a battery management system, a source node in response to a request for data transmission from the source node; selecting (102), by the target node, any two prime numbers from a pre-stored set of prime numbers if the authentication is passed, generating a public key and a private key according to the two prime numbers, and transmitting the public key to the source node; performing (103), by the source node, a first encryption byte-by-byte for source data to be transmitted using the public key, performing a second encryption for the first encrypted data using a first encryption algorithm stored by the source node itself, and transmitting the second encrypted data to the target node; and performing (104), by the target node, a first decryption for the second encrypted data using a decryption algorithm corresponding to the first encryption algorithm and stored by the target node itself, and performing a second decryption byte-by-byte for the first decrypted data using the private key. With the technical solution in the embodiments of the present disclosure, the security of data transmission between the nodes in the battery management system may be improved.

2. 发明公开

EP3624418A1 METHOD FOR DATA TRANSMISSION, BATTERY MANAGEMENT SYSTEM, AND STORAGE MEDIUM 有权转让
公开(公告)号：EP3624418A1
公开(公告)日：2020-03-18
申请号：EP19195297.7
申请日：2019-09-04
申请人： Contemporary Amperex Technology Co., Limited
发明人： LU, Wenbin , DAN, Zhimin , HOU, Yizhen , ZHANG, Wei , XU, Jia , LUO, Jiechao , YU, Teng
IPC分类号： H04L29/06 , H04W12/04 , H04L9/08
摘要： The embodiments of the present disclosure disclose a method for data transmission, comprising: authenticating (101), by a target node in a battery management system, a source node in response to a request for data transmission from the source node; selecting (102), by the target node, any two prime numbers from a pre-stored set of prime numbers if the authentication is passed, generating a public key and a private key according to the two prime numbers, and transmitting the public key to the source node; performing (103), by the source node, a first encryption byte-by-byte for source data to be transmitted using the public key, performing a second encryption for the first encrypted data using a first encryption algorithm stored by the source node itself, and transmitting the second encrypted data to the target node; and performing (104), by the target node, a first decryption for the second encrypted data using a decryption algorithm corresponding to the first encryption algorithm and stored by the target node itself, and performing a second decryption byte-by-byte for the first decrypted data using the private key. With the technical solution in the embodiments of the present disclosure, the security of data transmission between the nodes in the battery management system may be improved.

3. 发明公开

EP3624296A1 BATTERY MANAGEMENT SYSTEM AND COMMUNICATION METHOD THEREOF 有权转让
公开(公告)号：EP3624296A1
公开(公告)日：2020-03-18
申请号：EP19192753.2
申请日：2019-08-21
申请人： Contemporary Amperex Technology Co., Limited
发明人： DAN, Zhimin , LU, Wenbin , ZHANG, Wei , HOU, Yizhen , XU, Jia , LUO, Jiechao , YU, Teng
IPC分类号： H02J7/00 , H04B7/00 , H04W52/00 , H04W72/00
摘要： The present disclosure provides a battery management system (100) and a communication method (500) thereof. The method (500) includes: determining, by a main BMU (M 1 ), from a plurality of managed units (S 0 , S 1 , S n ) a first fault unit that communicates abnormally with the main BMU (M 1 ), and transmitting, by the main BMU (M 1 ), to a backup BMU (M 2 ) a fault frequency at which the first fault unit communicates abnormally with the main BMU (M 1 ) (S510); selecting, by the backup BMU (M 2 ), from the plurality of managed units (S 0 , S 1 , S n ) a managed unit that communicates normally with both the backup BMU (M 2 ) and the first fault unit as a first target unit (S520); transmitting, by the backup BMU (M 2 ), first frequency conversion information to the first fault unit through the first target unit based on the fault frequency, wherein the first frequency conversion information is to instruct the first fault unit to convert its frequency to a first frequency (S530); converting, by the first fault unit, its frequency to the first frequency (S540); transmitting the first frequency to the main BMU (M 1 ) if the backup BMU (M 2 ) communicates normally with the first fault unit using the first frequency (S550); and communicating, by the main BMU (M 1 ), with the first fault unit using the first frequency (S560). According to the battery management system (100) and the communication method (500) thereof according to embodiments of the present disclosure, the reliability of communication in the battery management system can be improved.

4. 发明授权

EP3573212B1 BATTERY PACK SYSTEM, CONTROL METHOD THEREOF AND MANAGEMENT DEVICE 有权转让
公开(公告)号：EP3573212B1
公开(公告)日：2020-09-30
申请号：EP19151169.0
申请日：2019-01-10
申请人： Contemporary Amperex Technology Co., Limited
发明人： ZUO, Xiyang , DAN, Zhimin , ZHANG, Wei , HOU, Yizhen , YU, Teng , LU, Wenbin , WU, Xingyuan , ZHU, Taosheng
IPC分类号： H02J7/00 , H01M10/657 , B60L58/13 , B60L58/25 , H01M10/42 , H01M10/44 , H01M10/48 , H01M10/615 , H01M10/63

5. 发明公开

EP3624352A1 WIRELESS RADIO FREQUENCY COMMUNICATION SYSTEM 审中-公开
公开(公告)号：EP3624352A1
公开(公告)日：2020-03-18
申请号：EP19192895.1
申请日：2019-08-21
申请人： Contemporary Amperex Technology Co., Limited
发明人： HOU, Yizhen , DAN, Zhimin , ZHANG, Wei , LUO, Jiechao , LU, Wenbin , XU, Jia , YU, Teng
IPC分类号： H04B1/04 , H04B1/18
摘要： The present disclosure provides a wireless radio frequency communication system. The system may comprise an antenna, a port converting device, an information transmission device, a shield case, and a reference voltage end; wherein the antenna, the port converting device, and the information transmission device may be connected sequentially, and the information transmission device may be disposed within the shield case, and both the shield case and the port converting device may be connected with the reference voltage end; the antenna may be configured for a conversion between a radio frequency signal and a single-ended signal; the port converting device may be configured for a conversion between the single-ended signal and target differential mode signals; the information transmission device may be configured to transmit and process the target differential mode signals; and parameters of components in the port converting device may be determined according to a preset communication frequency and a voltage amplitude and phase of a differential mode signal. The wireless radio frequency communication system according to embodiments of the present disclosure may be able to reduce external references to improve the transmission performance of the wireless radio frequency communication.

6. 发明公开

EP3624295A1 BATTERY MANAGEMENT SYSTEM, AND METHOD AND APPARATUS FOR TRANSMITTING INFORMATION 有权转让
公开(公告)号：EP3624295A1
公开(公告)日：2020-03-18
申请号：EP19192752.4
申请日：2019-08-21
申请人： Contemporary Amperex Technology Co., Limited
发明人： DAN, Zhimin , LU, Wenbin , ZHANG, Wei , HOU, Yizhen , XU, Jia , LUO, Jiechao , YU, Teng
IPC分类号： H02J7/00 , H04B17/00 , H04B7/00 , H04W52/00 , H04W72/00
摘要： The present disclosure provides a battery management system (100), and a method (500, 600, 700) and apparatus (800, 900, 1000) for transmitting information. The method (500) includes: determining (S510),, from a plurality of slave nodes (S 0 , S 1 , S 2 , S k ), a fault slave node that communicates abnormally with a master node (M) in the battery management system (100); selecting (S520) a target slave node from the plurality of slave nodes (S 0 , S 1 , S 2 , S k ), wherein the target slave node is a slave node that communicates normally with both the master node (M) and the fault slave node; transmitting (S530) frequency conversion information to the target slave node, so that the target slave node forwards the frequency conversion information to the fault slave node, and the fault slave node performs a frequency conversion based on the frequency conversion information; and transmitting (S540) information with the fault slave node using a frequency after the frequency conversion. According to the battery management system (100) and the method (500, 600, 700) and apparatus (800, 900, 1000) for transmitting information according to embodiments of the present disclosure, the reliability of wireless communication in the battery management system (100) can be improved.

7. 发明公开

EP3809554A1 BATTERY MANAGEMENT SYSTEM, AND METHOD AND APPARATUS FOR TRANSMITTING INFORMATION 有权
公开(公告)号：EP3809554A1
公开(公告)日：2021-04-21
申请号：EP20213953.1
申请日：2019-08-21
申请人： Contemporary Amperex Technology Co., Limited
发明人： DAN, Zhimin , LU, Wenbin , ZHANG, Wei , HOU, Yizhen , XU, Jia , LUO, Jiechao , YU, Teng
IPC分类号： H02J7/00 , H04B17/00 , H04B7/00 , H04W52/02 , H04W72/00
摘要： The present disclosure provides a battery management system (100), and a method (500, 600, 700) and apparatus (800, 900, 1000) for transmitting information. The method (500) includes: determining (S510),, from a plurality of slave nodes (S 0 , S 1 , S 2 , S k ), a fault slave node that communicates abnormally with a master node (M) in the battery management system (100); selecting (S520) a target slave node from the plurality of slave nodes (S 0 , S 1 , S 2 , S k ), wherein the target slave node is a slave node that communicates normally with both the master node (M) and the fault slave node; transmitting (S530) frequency conversion information to the target slave node, so that the target slave node forwards the frequency conversion information to the fault slave node, and the fault slave node performs a frequency conversion based on the frequency conversion information; and transmitting (S540) information with the fault slave node using a frequency after the frequency conversion. According to the battery management system (100) and the method (500, 600, 700) and apparatus (800, 900, 1000) for transmitting information according to embodiments of the present disclosure, the reliability of wireless communication in the battery management system (100) can be improved.

8. 发明公开

EP3806276A1 BATTERY MANAGEMENT SYSTEM AND COMMUNICATION METHOD THEREOF 有权
公开(公告)号：EP3806276A1
公开(公告)日：2021-04-14
申请号：EP20212252.9
申请日：2019-08-21
申请人： Contemporary Amperex Technology Co., Limited
发明人： DAN, Zhimin , LU, Wenbin , ZHANG, Wei , HOU, Yizhen , XU, Jia , LUO, Jiechao , YU, Teng
IPC分类号： H02J7/00 , H04B7/00 , H04W52/02 , H04W72/00
摘要： The present disclosure provides a battery management system (100) and a communication method (500) thereof. The method (500) includes: determining, by a main BMU (Mi), from a plurality of managed units (S 0 , S 1 , S n ) a first fault unit that communicates abnormally with the main BMU (Mi), and transmitting, by the main BMU (Mi), to a backup BMU (M 2 ) a fault frequency at which the first fault unit communicates abnormally with the main BMU (M 1 ) (S510); selecting, by the backup BMU (M 2 ), from the plurality of managed units (S 0 , S 1 , S n ) a managed unit that communicates normally with both the backup BMU (M 2 ) and the first fault unit as a first target unit (S520); transmitting, by the backup BMU (M 2 ), first frequency conversion information to the first fault unit through the first target unit based on the fault frequency, wherein the first frequency conversion information is to instruct the first fault unit to convert its frequency to a first frequency (S530); converting, by the first fault unit, its frequency to the first frequency (S540); transmitting the first frequency to the main BMU (M 1 ) if the backup BMU (M 2 ) communicates normally with the first fault unit using the first frequency (S550); and communicating, by the main BMU (Mi), with the first fault unit using the first frequency (S560). According to the battery management system (100) and the communication method (500) thereof according to embodiments of the present disclosure, the reliability of communication in the battery management system can be improved.

9. 发明授权

EP3573172B1 HEATING CONTROL METHOD AND HEATING CONTROL DEVICE 有权转让
公开(公告)号：EP3573172B1
公开(公告)日：2020-09-23
申请号：EP19150225.1
申请日：2019-01-03
申请人： Contemporary Amperex Technology Co., Limited
发明人： DAN, Zhimin , LU, Wenbin , ZHANG, Wei , HOU, Yizhen , YU, Teng , ZUO, Xiyang , WU, Xingyuan , ZHU, Taosheng
IPC分类号： H05B1/02 , H01M10/615 , H01M10/651 , H01M10/633

10. 发明公开

EP3624297A1 BATTERY MANAGEMENT SYSTEM 有权转让
公开(公告)号：EP3624297A1
公开(公告)日：2020-03-18
申请号：EP19196378.4
申请日：2019-09-10
申请人： Contemporary Amperex Technology Co., Limited
发明人： ZHANG, Wei , DAN, Zhimin , HOU, Yizhen , XU, Jia , LUO, Jiechao , LU, Wenbin , YU, Teng
IPC分类号： H02J7/00 , H01M10/42
摘要： The embodiments of the present disclosure disclose a battery management system. The battery management system comprises: a battery management unit, configured to receive status information of a battery module and status information of a battery pack, and to transmit a control instruction to one or more cell measurement circuits; the one or more cell measurement circuits, configured to collect the status information of the battery module, to transmit the status information of the battery module to the battery management unit, and to receive and execute the control instruction transmitted from the battery management unit; one or more sensing units, configured to collect the status information of the battery pack, and to transmit the status information of the battery pack to the battery management unit; wherein a wireless communication unit is disposed in the battery management unit, and a wireless communication unit is disposed in at least a portion of the one or more cell measurement circuits and/or at least a portion of the one or more sensing units, so that the battery management unit is connected to at least the portion of the one or more cell measurement circuits and/or at least the portion of the one or more sensing units by wireless communication.

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