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Current measuring device and method using resistance value at each temperature

A technology of current measurement and resistance value, applied in measurement devices, measurement of current/voltage, measurement using digital measurement technology, etc., can solve problems such as hindering accurate measurement of current, and achieve the effect of saving investment costs

Active Publication Date: 2017-10-13
HYUNDAI MOBIS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The change in the resistance value of the cable 13A will hinder the accurate measurement of the current by the IBS

Method used

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  • Current measuring device and method using resistance value at each temperature
  • Current measuring device and method using resistance value at each temperature
  • Current measuring device and method using resistance value at each temperature

Examples

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Embodiment Construction

[0029] The invention provides a current measuring device for measuring the current of a vehicle storage battery.

[0030] This amperometric device is characterized by including: an analog-digital converter (Analog-Digital Converter: ADC) that converts an analog form current flowing on a cable connected to the vehicle battery into a digital form measurement current, and referring to The temperature sections of the vehicle battery are respectively measured in advance, the cable resistance value is stored in a lookup table, and the cable resistance value matching the temperature section to which the current temperature of the vehicle battery belongs is extracted, and the extracted resistance value is used to value to calibrate the control components of the ADC current channel.

[0031] According to an example of the present invention, the control part refers to the gain value and offset value of the ADC calculated in advance according to the temperature range, and extracts the ga...

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Abstract

The invention discloses a current measuring device and a method thereof using resistance values ​​at various temperatures for measuring the current of a vehicle accumulator. This device includes: an analog-to-digital converter for converting an analog morphological current flowing on a cable connected to the vehicle battery into a digital morphometric current; The look-up table in which the resistance value is stored, extracts the resistance value of the cable that matches the temperature range to which the current temperature of the vehicle battery belongs, and uses the extracted resistance value to calibrate the control part of the ADC current channel.

Description

technical field [0001] The present invention is a device and method for measuring current by utilizing resistance values ​​at various temperatures, specifically, a device and method for accurately measuring IBS (Intelligent Battery System, Intelligent Battery System) current. Background technique [0002] A general vehicle is equipped with various electrical devices that operate on electric power, such as an ignition device for an engine, a courtesy light, an audio device, and an air-conditioning (Heating Ventilating and Air Conditioning) device. [0003] In order to supply power to these electric devices, a vehicle battery or a vehicle generator is generally installed in the vehicle. [0004] Some of the electric devices operate on receiving power from the vehicle battery before the vehicle is running and on receiving power generated from the vehicle alternator while the vehicle is running. [0005] When either electrical device receives more power than required from the v...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R19/25
CPCY02E60/10G01R19/16542G01R31/3648H01M10/48G01R31/367G01R31/389G01R31/374G01R31/3842B60R16/033
Inventor 梁恃元
Owner HYUNDAI MOBIS CO LTD