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

Battery management device and method, and chip

A technology of battery management and power supply, applied in battery circuit devices, circuit devices, battery/fuel cell control devices, etc., can solve problems such as inaccurate index testing, and achieve accurate measurement results

Active Publication Date: 2019-04-09
DATANG NXP SEMICON CO LTD
View PDF8 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a battery management device, method, and chip to solve the technical problem of inaccurate index testing during battery management

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
  • Battery management device and method, and chip
  • Battery management device and method, and chip
  • Battery management device and method, and chip

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] refer to figure 1 , shows a structural block diagram of a battery management device in an embodiment of the present invention.

[0023] In the embodiment of the present invention, the battery management device can be applied to an automobile battery management system (BMS, Battery Management System), and the performance of the battery can be accurately measured through the battery management device.

[0024] In the embodiment of the present invention, refer to figure 1 , the battery management device includes: an analog-to-digital conversion module 10, an impedance measurement module 20, a comparator module 30, a drive module 40, an excitation signal generation module 50, a first power input terminal 61, and a second power input terminal 62;

[0025] The analog-to-digital conversion module 10 is connected to the first power supply access port 61, the second power supply access port 62 and the impedance measurement module 20; the analog-to-digital conversion module 10 i...

Embodiment 2

[0042] refer to figure 2 , shows a flowchart of steps of a battery management method in an embodiment of the present invention. The method can be applied to any of the above-mentioned battery management devices, and the method includes:

[0043] Step 101: Calculate the delay value when the first power supply terminal and the second power supply terminal are connected to the prefabricated DC power supply.

[0044] In the embodiment of the present invention, the preset DC power supply may be close to an ideal power supply, and almost no phase shift will be generated, and the delay value can be measured and calculated by the impedance measurement module.

[0045] Step 102: Set a register value of the register unit to the delay value.

[0046] In the embodiment of the present invention, in the comparator module, the register value of the register unit can be set as the delay value calculated through step 101 .

[0047] Step 103: When the first power input port and the second p...

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 embodiment of the invention provides a battery management device and method, and a chip. The battery management device comprises an analog-digital conversion module, an impedance measuring module,a comparator module, a driving module, an excitation signal generating module, a first power connection end and a second power connection end; the analog-digital conversion module is connected with the first power connection end, the second power connection end and the impedance measuring module; the analog-digital conversion module is used for achieving analog-digital conversion between a connected power supply and the impedance measuring module; as for the connected power supply, when the battery management device works, the first power connection end and the second power connection end areconnected into the power supply; the impedance measuring module is further connected with the comparator module and the driving module and used for testing the impedance of the connected power supply; the comparator module is used for compensating delay generated by the driving module and the excitation signal generating module; the driving module is used for driving the battery management deviceto work; and the excitation signal generating module is connected with the comparator module, the driving module, the first power connection end and the second power connection end. According to thebattery management device and method, and the chip, performance indexes of the to-be-measured power supply can be accurately measured in an impedance accurate testing mode.

Description

technical field [0001] The invention relates to the field of new energy technology, in particular to a battery management device, method and chip. Background technique [0002] With the development of new energy technology, hybrid electric vehicles and electric vehicles have been more and more researched. In hybrid electric vehicles and electric vehicles, batteries are the source of power, and the health status of batteries is an important indicator of hybrid electric vehicles and electric vehicles. [0003] In the prior art, when the battery index is managed, the temperature index of the battery is usually managed, the temperature of the battery is detected through sensors, etc., and two to three control values ​​are set, and the temperature reaches a certain set limit high temperature , the battery management system can manage the battery by limiting the output power of the battery, etc. [0004] However, in the prior art, when the battery is measured and managed, the co...

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
IPC IPC(8): B60L58/12B60L58/24H01M10/42H01M10/44
CPCH01M10/4257H01M10/443H01M2010/4271H01M10/486H01M10/482Y02T10/70Y02E60/10B60L58/10G01R31/389G01R31/386G01R31/396H01M2220/20H01M10/425B60L2240/547B60L2240/545
Inventor 李建峰李海
Owner DATANG NXP SEMICON CO LTD