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

Battery management system high-voltage relay failure detection device and method

A technology of battery management system and high-voltage relay, which is applied in the direction of measuring device, circuit breaker test, instrument, etc., can solve the problem of inability to judge the failure state of the relay, and achieve the effect of strong portability, versatility and low cost

Pending Publication Date: 2021-01-15
BEIJING NEW ENERGY VEHICLE TECH INNOVATION CENT CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing battery management system high-voltage relay state detection method can only judge whether the relay is in a failure state by detecting the relay contact state, but cannot judge whether the relay is in a failure state by detecting the coil

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 system high-voltage relay failure detection device and method
  • Battery management system high-voltage relay failure detection device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way serves as any limitation of the application, its application or uses. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0020] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, 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

The invention provides a battery management system high-voltage relay failure detection device and method. The device comprises a high-voltage relay which comprises a relay coil; a high-side driving unit which is used for carrying out high-side driving on the relay; a relay control circuit which is used for controlling the relay; an analog signal acquisition circuit which is used for acquiring thevoltage on the relay coil; and a controller which is used for controlling the on-off of the high-side driving unit and the relay control circuit, controlling the analog signal acquisition circuit toacquire the voltage on the relay coil, and judging the failure state of the relay coil according to the voltage. The device and the method for detecting the failure of the high-voltage relay of the battery management system adopt a mode of detecting the failure of the relay on the coil side, and have advantages of safety, high efficiency, low cost and strong transportability and universality.

Description

technical field [0001] The present application belongs to the field of battery systems, and in particular relates to a failure detection device and method for a high voltage relay of a battery management system. Background technique [0002] With the rapid development of new energy vehicles, power batteries are the power system of new energy vehicles, and the safety of power battery packs directly affects personal safety. In order to ensure the safety and controllability of the high-voltage circuit of the power battery, the battery management system is required to be able to detect the state of the high-voltage relay in the high-voltage circuit. [0003] However, the existing battery management system high-voltage relay state detection method can only judge whether the relay is in a failure state by detecting the state of the relay contact, but cannot judge whether the relay is in a failure state by detecting the coil. Contents of the invention [0004] The purpose of the...

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): G01R31/327
CPCG01R31/3275G01R31/3272
Inventor 冯秋杰原诚寅
Owner BEIJING NEW ENERGY VEHICLE TECH INNOVATION CENT CO LTD
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