BMS current detection unit automatic calibration device and calibration method

A current detection unit and automatic calibration technology, applied in the direction of measuring devices, measuring electrical variables, instruments, etc., can solve the problems of low production efficiency, complex process, large calibration error, etc., and achieve high production efficiency, simple equipment, and saving rework. effect of time

Inactive Publication Date: 2014-04-09
HUIZHOU EPOWER ELECTRONICS
View PDF6 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above technical problems, the present invention provides an automatic calibration device and a calibration method for a BMS current detection unit. The pre

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
  • BMS current detection unit automatic calibration device and calibration method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] In order to allow those skilled in the art to better understand the technical solution of the present invention, the present invention will be further elaborated below.

[0017] An automatic calibration device for a BMS current detection unit, including a host computer, a program-controlled constant current source and a communication module. A shunt is provided between the unit and the program-controlled constant current source, and the shunts are connected with the current detection unit and the program-controlled constant current source by means of current sampling lines. The upper computer is based on a desktop computer or a notebook computer, runs preset functional software, and mainly sends control commands to the program-controlled constant current source and exchanges data with the communication module to complete each step of the matching and calibration process. At the same time, the upper computer also has automatic calculation. The function of error offset 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 invention discloses a BMS current detection unit automatic calibration device and calibration method. The automatic calibration device comprises an upper computer for controlling the whole matching calibration process and performing automatic calculation on the error offset and the gain; a program-controlled constant-current source which is controlled by the upper computer and connected with the upper computer, wherein the program-controlled constant-current source can be used to accurately output a preset current as the calibration signal source according the control command of the program-controlled constant-current source; and a communication module for establishing the data exchange channel between the upper computer and the current detection unit to acquire the detection value of the current detection unit and store the error offset and the gain into a nonvolatile memory in the current detection unit, and a current sensor, and a shunt is arranged between the current detection unit and the program-controlled constant-current source. The automatic calibration device provided in the invention has advantages of simple operation and high production efficiency, and can be used to avoid problems of reduced efficiency and easy misoperation after works work continuously. Moreover, the comparison between the single calibration result and the normal result is added, and the disordered shunt type problem can be avoided.

Description

technical field [0001] The invention relates to the technical field of current detection, in particular to an automatic calibration device and a calibration method for a BMS current detection unit. Background technique [0002] With the continuous growth of market demand for electric vehicles, the production of new energy vehicle power batteries and BMS is bound to usher in explosive growth. This puts forward higher requirements on the production efficiency of enterprises. Due to the continuous development and updating of BMS products, the corresponding production lines are usually in the state of manual or semi-automatic production, and the production efficiency is low. For the production process that requires workers to perform multiple operation steps continuously, it is often the bottleneck of production efficiency. [0003] Take the matching calibration process of the BMS current detection unit and the current sensor as an example. At present, in the production proces...

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): G01R35/00
Inventor 刘飞文锋阮旭松龚敏明徐志深
Owner HUIZHOU EPOWER ELECTRONICS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap