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

Battery monitoring system and method and transportation system with battery monitoring system

A battery monitoring and storage battery technology, applied in the field of transportation systems, can solve problems such as inaccurate complex impedance detection

Pending Publication Date: 2021-01-19
DENSO CORP
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, the detection of complex impedance is often inaccurate due to the many noise sources such as inverters included in the vehicle

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 monitoring system and method and transportation system with battery monitoring system
  • Battery monitoring system and method and transportation system with battery monitoring system
  • Battery monitoring system and method and transportation system with battery monitoring system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] Conventionally, in order to monitor the state of the battery, the complex impedance of the battery was measured as discussed in Japanese Patent No. 6226261 (JP6226261B2). That is, JP6226261B2 describes that a power controller applies a rectangular wave signal to a storage battery, and calculates complex impedance characteristics based on a response signal returned from the storage battery. Subsequently, the deterioration state of the storage battery or the like is judged based on the complex impedance characteristic.

[0027] However, when such a complex impedance measuring method is used to measure the complex impedance of a storage battery mounted on a vehicle, problems as described below arise. That is, since a vehicle includes many noise sources such as inverters, detection of complex impedance is generally inaccurate.

[0028] Referring now to the drawings, wherein like reference numerals indicate like or corresponding parts throughout the several views thereof, a...

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 waveform designator (53) designates a given waveform of an AC signal by specifying a frequency as a reference. A signal controller (56) causes a storage battery (42) to output a response signal based on its own power. A detector detects a frequency component in the response signal corresponding to the reference frequency of the AC signal based on a product of the reference frequency and the response signal. A calculator calculates a complex impedance of the storage battery based on the frequency component in the response signal. A noise determiner (53) determines presence or absence of a noise signal corresponding to the reference frequency of the AC signal before the signal controller causes the storage battery to output the AC signal. A noise controller (53) either avoids or removes the noise signal.

Description

technical field [0001] The present disclosure relates to a battery monitoring system and method and a transportation system having the battery monitoring system. Background technique [0002] Conventionally, in order to monitor the state of the battery, the complex impedance of the battery has been measured. That is, the power controller applies a rectangular wave signal to the battery, and calculates complex impedance characteristics based on a response signal returned from the battery. Subsequently, the deterioration state of the storage battery and the like are judged based on the complex impedance characteristics. [0003] However, when the complex impedance of the storage battery mounted on the vehicle is measured using this complex impedance measurement method, problems as described below arise. That is, since a vehicle includes many noise sources such as inverters, detection of complex impedance is generally inaccurate. Contents of the invention [0004] Therefor...

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 Applications(China)
IPC IPC(8): G01R31/389G01R31/3842G01R31/396G01R31/392G01R31/364G01R31/00G01R27/16
CPCG01R31/389G01R31/3842G01R31/396G01R31/392G01R31/364G01R31/007G01R27/16G01R31/382H02J7/0047H01M10/425H01M2010/4271H01M10/482H01M2220/20Y02E60/10H01M10/4235H01M10/48
Inventor 北川昌明
Owner DENSO CORP