Supercharge Your Innovation With Domain-Expert AI Agents!

High-voltage load short circuit detection system and method

A high-voltage load, short-circuit detection technology, applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., can solve problems such as battery pack overcurrent, and achieve the effect of improving safety

Active Publication Date: 2016-03-02
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
View PDF8 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once there is a short-circuit fault at the high-voltage load end, such as the air-conditioning system or the electric drive system, it will cause the high-voltage relay to close instantly, and the short-circuit state of the power battery pack will appear, which may cause instantaneous overcurrent of the battery pack

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
  • High-voltage load short circuit detection system and method
  • High-voltage load short circuit detection system and method
  • High-voltage load short circuit detection system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0045] In order to enable those skilled in the art to further understand the features and technical contents of the present invention, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings and implementation methods.

[0046] Aiming at the fact that the disconnection state of the high-voltage load end at the rear end of the high-voltage relay is not judged in the prior art, which may cause instantaneous overcurrent of the battery pack, the embodiment of the present invention provides a high-voltage load short-circuit detection system, through which the high-voltage load can be detected. Whether the load is short-circuited to ensure the safety of high-voltage electricity.

[0047] figure 1 It is a structural schematic diagram of a high-voltage load short-circuit detection system according to an embodiment of the present invention. Both ends of the high-voltage load are connected to a battery pack, and the batte...

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

PropertyMeasurementUnit
The first resistance valueaaaaaaaaaa
Login to View More

Abstract

The invention relates to the technical field of short circuit detection, and relates to a high-voltage load short circuit detection system and a method. Two ends of a high-voltage load are connected with a battery pack, and the battery pack comprises a battery management system. The short circuit detection system comprises a control circuit connected with the battery management system, a first relay, a second relay, and a first resistor connected with the output end of the second relay, wherein the high-voltage load is serially connected between the output end of the first relay and the input end of the second relay so as to control on and off of the high-voltage load in a low-voltage circuit through the first relay and the second relay; and the control circuit is respectively connected with the input end of the first relay, the control end of the first relay, the control end of the second relay and the output end of the second relay to provide reference power for the low-voltage circuit, control on and off of the first relay and the second relay and detect the output state of the output end of the second relay. Thus, safety of overall vehicle high-voltage power consumption can be improved.

Description

technical field [0001] The invention relates to the technical field of short circuit detection, in particular to a high voltage load short circuit detection system and method. Background technique [0002] Electric vehicles have become a new direction of technological development in the automotive industry. The safety performance of the high-voltage system has increasingly become an important indicator of the safety of electric vehicles. In the high-voltage system of electric vehicles, the safety of the high-voltage system includes the detection of short-circuit conditions of the power bus of the battery pack. Among them, before and after the high-voltage relay is closed, whether there is a short-circuit state at the load port must be confirmed before the high-voltage relay is closed. Otherwise, when there is a short circuit at the high-voltage load end, closing the high-voltage relay will cause ablation of the power bus. What is more dangerous may cause a short circuit of ...

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): G01R31/02
CPCG01R31/50
Inventor 丁更新
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com