Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method and system for estimating insulation resistance between a battery and an electrical ground

A technology of insulation resistance and electrical grounding, applied in the field of electric dipole measurement, can solve the problems of complex, unreliable measurement technology, high cost, etc., and achieve the effect of reducing functionality

Active Publication Date: 2018-06-05
RENAULT SA
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] It thus appears that existing measurement techniques are not reliable, complex or involve high costs

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
  • Method and system for estimating insulation resistance between a battery and an electrical ground
  • Method and system for estimating insulation resistance between a battery and an electrical ground
  • Method and system for estimating insulation resistance between a battery and an electrical ground

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0044] exist figure 1 In , a measuring circuit CM is shown, comprising a resistor R and a capacitor CE, which is connected to a terminal of the high-voltage battery Batt of the electric vehicle equipment. The battery Batt is eg a rear wheel or front wheel drive battery of the electric vehicle.

[0045] By means of the measuring line CM, the insulation resistance Risol can be determined. The resistance Risol is the resistance between one terminal or any other point of the battery Batt and the electrical ground M of the vehicle.

[0046] The measurement circuit CM comprises an input terminal intended to receive the input voltage Ue and an output terminal connected to one of these terminals of the battery Batt. The resistance R of the measuring line CM has a known value and the coupling capacitance CE of this measuring line has a value to be determined.

[0047] In order to determine the capacitance CE on the one hand and the resistance Risol between this terminal connected to...

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

A method for estimating insulation resistance between a terminal of a battery and an electrical ground, including: connecting a measuring circuit to one terminal of the battery, the measuring circuit including a resistance of known value and a capacitance; application of a known input signal having an input voltage; measurement of an output voltage between the ground and a point located between the resistance of known value and the capacitance; determination of a complex impedance of a dipole of the capacitance and the insulation resistance or determination of parameters of a differential equation; and determination of the insulation resistance from the parameters of the differential equation or the complex impedance.

Description

technical field [0001] The technical field of the invention relates to the measurement of electric dipoles, and more precisely to the measurement of insulation resistance in, for example, vehicles including high voltage batteries. Background technique [0002] In an electric vehicle or an electric hybrid vehicle that includes a high voltage battery, at a point on the battery that is connected to the high voltage (for example: the positive or negative terminals of the battery or the connectors between the cells of the battery, or the high voltage The insulation resistance between the bus) and the electric ground electrode of the vehicle is an indispensable safety component. In fact, it is the insulation resistance that makes it possible to prevent any electric shock to the vehicle occupants or to living organisms that come into contact with the vehicle. [0003] Measuring this resistance is indispensable in order to detect and then correct any insulation fault before a secon...

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): G01R31/02G01R27/02
CPCG01R27/025G01R31/52G01R31/1227
Inventor L·科尔代塞M·门斯勒S-A·兰迪D·沙特鲁S·卡尔库埃
Owner RENAULT SA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com