Search

CN-117254961-B - Mutual recognition method for lithium battery, controller and charger

CN117254961BCN 117254961 BCN117254961 BCN 117254961BCN-117254961-B

Abstract

The invention discloses a mutual recognition method of a lithium battery, a controller and a charger, which comprises the following steps of S1, binding a BMS control board with a cloud box, S2, sending a controller verification package A and a charger verification package A by the BMS control board, selecting corresponding protocol information response to the BMS control board after the cloud box receives the controller verification package A and the charger verification package A, S3, sending public package data, private package data and lithium battery ID information to the cloud box by the BMS control board according to the protocol information, S4, comparing whether the public package data, the private package data and the lithium battery ID information are consistent after the cloud box receives the protocol information, closing if the public package data and the private package data are inconsistent, analyzing the public package by the cloud box to obtain a controller verification package B and the charger verification package B, sending the controller and the charger to the controller and the charger, responding to the cloud box after the controller and the charger receives the controller, S5, judging whether the public package is compliant or not after the cloud box receives the controller, closing if the public package is not compliant, and opening if the public package is compliant. Through the coordination of centering of cloud box, avoided lithium cell, charger, controller to be changed by the law or repacking, guaranteed the matching degree between lithium cell and charger, the controller.

Inventors

  • ZHANG FANGYONG
  • SHENG GANGXIANG
  • ZHU RIZHAO
  • MA WEIDONG
  • YANG SHUHUA

Assignees

  • 浙江绿源电动车有限公司

Dates

Publication Date
20260505
Application Date
20230925

Claims (6)

  1. 1. The utility model provides a mutual recognition method of lithium cell, controller, charger, its characterized in that includes lithium cell (1), cloud box (3), charger (2), controller (5), server (4), cloud box (3) embeds the protocol information collection that comprises protocol information, cloud box (3) are connected with charger (2), controller (5) respectively, communication connection between cloud box (3) and the server (4), be provided with BMS control panel (11) on lithium cell (1), be provided with charging MOS pipe (12) on BMS control panel (11), discharging MOS pipe (13), BMS control panel (11) embeds lithium cell ID information, cloud box (3) embeds cloud box ID information, still includes the following steps: S1, binding lithium battery ID information built in a BMS control board (11) with cloud box ID information of a cloud box (3), and storing the lithium battery ID information into the cloud box (3) to form lithium battery ID verification information; S2, connecting a BMS control board (11) of the lithium battery (1) with the cloud box (3), then sending a first controller verification packet and a first charger verification packet containing protocol contents to the cloud box (3) by the BMS control board (11), and after receiving the first controller verification packet and the first charger verification packet, obtaining the protocol contents in the first controller verification packet and the first charger verification packet by the cloud box (3), and selecting corresponding protocol information responses from a built-in protocol information set according to the protocol contents to the BMS control board (11); s3, after receiving the protocol information, the BMS control board (11) sends public packet data, private packet data and lithium battery ID information built in the BMS control board (11) to the cloud box (3) according to the protocol information; S4, after the cloud box (3) receives public packet data and private packet data, comparing whether lithium battery ID information sent by the BMS control board (11) is consistent with lithium battery ID verification information stored in the cloud box (3), if not, the cloud box (3) sends non-compliance information to the BMS control board (11), after the BMS control board (11) receives the non-compliance information, the charging MOS tube (12) and the discharging MOS tube (13) are closed, if so, the cloud box (3) analyzes the public packet data and the private packet data to obtain a second controller verification packet and a second charger verification packet, the second controller verification packet is sent to the controller (5) and the second charger verification packet is sent to the charger (2), and after the controller (5) and the charger (2) receive the non-compliance information, the controller response packet and the charger response packet are respectively responded to the cloud box (3); S5, after the cloud box (3) receives the controller response packet and the charger response packet, judging whether the controller response packet and the charger response packet are in compliance, if the non-compliance cloud box (3) sends non-compliance information to the BMS control board (11), the BMS control board (11) closes the charging MOS tube (12) and the discharging MOS tube (13) after receiving the non-compliance information, and if the compliance cloud box (3) sends compliance information to the BMS control board (11), the BMS control board (11) opens the charging MOS tube (12) and the discharging MOS tube (13) after receiving the compliance information.
  2. 2. The method for distinguishing the lithium battery from the controller and the charger according to claim 1, wherein the BMS control board (11) is connected with the cloud box (3) through a handshake protocol.
  3. 3. The method according to claim 1, wherein in the step S2, the cloud box (3) responds to the BMS control board (11) with built-in protocol information within 2 seconds.
  4. 4. The method for mutual recognition of the lithium battery, the controller and the charger according to claim 1, wherein in the step S4, the controller (5) and the charger (2) respectively answer the controller answer packet and the charger answer packet to the cloud box (3) within 2 seconds.
  5. 5. The mutual recognition method of the lithium battery, the controller and the charger according to claim 1, wherein the mode of binding the built-in lithium battery ID information of the BMS control board (11) and the cloud box ID information of the cloud box (3) is code scanning binding.
  6. 6. The mutual recognition method of the lithium battery, the controller and the charger according to claim 1 is characterized in that the communication connection between the cloud box (3) and the server (4) is wifi connection or 4G communication connection or 5G communication connection.

Description

Mutual recognition method for lithium battery, controller and charger Technical Field The invention relates to an electric vehicle, in particular to a mutual recognition method of a lithium battery, a controller and a charger. Background The lithium battery electric bicycle in the current market can be used after being installed as long as the voltage of the lithium battery meets the requirements, so that a dealer or a user can change different lithium battery specifications when buying and selling, and some dealers can illegally refit the lithium battery, so that the lithium battery is possibly fire hazard caused by mismatching with a charger and a controller in the subsequent charging, and serious potential safety hazards exist, so that improvement is needed. Disclosure of Invention Aiming at the defects that the lithium battery is not matched with a charger and a controller after being manually replaced or refitted in the prior art, the invention possibly triggers a fire house and the like, the invention provides a novel mutual recognition method of the lithium battery, the controller and the charger. In order to solve the technical problems, the invention is realized by the following technical scheme: the utility model provides a mutual recognition method of lithium cell, controller, charger, includes lithium cell, cloud box, charger, controller, server, the cloud box embeds the protocol information collection that comprises protocol information, the cloud box is connected with charger, controller respectively, communication connection between cloud box and the server, be provided with the BMS control panel on the lithium cell, be provided with charge MOS pipe, discharge MOS pipe on the BMS control panel, the BMS control panel embeds lithium cell ID information, the cloud box embeds cloud box ID information, still includes the following steps: S1, binding lithium battery ID information in a BMS control board with cloud box ID information of a cloud box, and storing the lithium battery ID information into the cloud box to form lithium battery ID verification information; S2, connecting a BMS control board of the lithium battery with the cloud box, then sending a first controller verification package and a first charger verification package containing protocol contents to the cloud box by the BMS control board, acquiring the protocol contents in the first controller verification package and the first charger verification package after the cloud box receives the protocol contents, and selecting corresponding protocol information responses from a built-in protocol information set according to the protocol contents to the BMS control board; s3, after receiving the protocol information, the BMS control board sends public packet data, private packet data and lithium battery ID information built in the BMS control board to the cloud box according to the protocol information; s4, after the cloud box receives the public packet data and the private packet data, comparing whether lithium battery ID information sent by the BMS control board is consistent with lithium battery ID verification information stored in the cloud box, if not, the cloud box sends non-compliance information to the BMS control board, and the BMS control board closes a charging MOS tube and a discharging MOS tube after receiving the non-compliance information; And S5, after the cloud box receives the controller response packet and the charger response packet, judging whether the controller response packet and the charger response packet are in compliance, if so, sending the non-compliance information to the BMS control board by the non-compliance cloud box, and closing the charging MOS tube and the discharging MOS tube by the BMS control board after receiving the non-compliance information, and if so, sending the compliance information to the BMS control board by the compliance cloud box, and opening the charging MOS tube and the discharging MOS tube by the BMS control board after receiving the compliance information. Preferably, in the mutual recognition method of the lithium battery, the controller and the charger, the BMS control board is connected with the cloud box through a handshake protocol. Preferably, in the above method for identifying the lithium battery, the controller and the charger, in step S2, the cloud box responds to the BMS control board with the built-in protocol information within 2 seconds. Preferably, in the above-mentioned method for identifying the lithium battery, the controller and the charger each other, in step S4, the controller and the charger respectively answer the controller answer packet and the charger answer packet to the cloud box within 2 seconds. Preferably, in the mutual recognition method of the lithium battery, the controller and the charger, the mode of binding the lithium battery ID information in the BMS control board with the cloud box ID information of the cloud box is code scanning binding. Pref