Unlock instant, AI-driven research and patent intelligence for your innovation.

Communication circuit and communication method for battery management system

A battery management system and communication circuit technology, applied in the field of battery management, can solve the problems of too many MCUs in the middle, and achieve the effect of simplified structure and low cost

Active Publication Date: 2021-09-21
SUNWODA ELECTRONICS +1
View PDF21 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide a communication circuit and a communication method for a battery management system, which is used to solve the problem of too many MCUs in the existing

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Communication circuit and communication method for battery management system
  • Communication circuit and communication method for battery management system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0039] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0040] refer to Figure 1-2 , an embodiment of the present invention is used for a communication circuit of a battery management system, including an MCU and a battery management chip; there are multiple battery management chips, and the battery management chip is used to manage its corresponding batteries; the sending pins of the MCU are connected to each The receiving pins of each battery management chip are connected; the sending pins of each battery management chip are connected to the receiving pins of the MCU through different analog switches, and the sending pins of the MCU are used to send data to the receiving pins of the battery management chip. Signal, the sending pin of the battery management chip is used to send data signals to the receiving pin of the MCU; each analog switch is connected to a different c...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a communication circuit and a communication method for a battery management system. The communication circuit for a battery management system includes an MCU and a battery management chip; there are multiple battery management chips; the sending pins of the MCU are respectively connected to each The receiving pins of the battery management chip are connected; the sending pins of each battery management chip are connected to the receiving pins of the MCU through different analog switches; each analog switch is connected to different control pins of the MCU and the MCU is connected through the control pin Each analog switch is connected to a different resistor, one end of each resistor is grounded, the other end is connected to the corresponding analog switch, and a feedback pin of the MCU is connected. The present invention is used in the communication circuit and communication method of the battery management system. One MCU is connected with multiple battery management chips, and can reasonably communicate with the selected battery management chip. One MCU can manage more than 20 battery cells. The MCU Being rationally utilized, the structure of the communication circuit is simplified.

Description

technical field [0001] The invention relates to the field of battery management, in particular to a communication circuit and a communication method for a battery management system. Background technique [0002] A centralized battery management system usually requires a single module to manage 24 to 64 cells. Single module management refers to the communication circuit used in the battery management system, in which the cells are managed by the battery management chip, while the currently commonly used battery management chip can only manage 20 cells. When the number of battery cells below one node is large, multiple battery management chips need to be used in the communication circuit of the battery management system, which is limited by the function of the existing 8-16-bit MCU. Each battery management chip needs to be connected to one MCU, and the MCUs also need to be related to each other, resulting in a complex structure of the communication circuit, and too many MCUs i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/40
CPCH04B1/40
Inventor 梁俊红梁柱周双军
Owner SUNWODA ELECTRONICS