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

Protection circuit of electric driving system of electric automobile and electric automobile electric driving system

A technology of electric drive system and protection circuit, which is applied in the field of robots, can solve problems such as safety accidents, and achieve the effect of low cost and simple structure

Active Publication Date: 2020-05-12
HUNAN CSR TIMES ELECTRIC VEHICLE
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the large-scale operation of electric vehicles, many safety accidents have occurred in the electric drive system of electric vehicles.

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
  • Protection circuit of electric driving system of electric automobile and electric automobile electric driving system
  • Protection circuit of electric driving system of electric automobile and electric automobile electric driving system
  • Protection circuit of electric driving system of electric automobile and electric automobile electric driving system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and examples, so as to fully understand and implement the process of how to apply technical means to solve technical problems and achieve technical effects in the present invention. It should be noted that, as long as there is no conflict, each embodiment and each feature in each embodiment of the present invention can be combined with each other, and the formed technical solutions are all within the protection scope of the present invention.

[0036] Also, in the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without the specific details or in the particular manner described.

[0037] During the driving of an electric vehicle, i...

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

Provided in the invention is a protection circuit of an electric driving system of an electric automobile. The protection circuit comprises a power supply control circuit for controlling an operationstate of a driving circuit according to a received electric driving system state signal and a short-circuit control circuit for controlling the operation state of a rectification inverter circuit according to the received electric driving system state signal. When the electric driving system state signal is a first state signal representing that the system has a fault, the power supply control circuit is configured to turn off the power supply of the driving circuit, so that the driving circuit is in a non-running state; the short-circuit control circuit is configured to control correspondingcontrollable switches of the rectification inverter circuit to be closed, so that the alternating-current terminal of the rectification inverter circuit is short-circuited. The protection circuit issimple in structure and low in cost, and can actively enable the rectification inverter circuit to stop working by cutting off a power supply of the driving circuit when a system breaks down, so thatdirect currents generated by the rectification inverter circuit cannot flow to a battery to prevent overcharge of the battery.

Description

technical field [0001] The invention relates to the technical field of robots, in particular to a protection circuit of an electric drive system of an electric vehicle and the electric drive system of the electric vehicle. Background technique [0002] In recent years, the production and sales of electric vehicles have reached an explosive period. With the large-scale operation of electric vehicles, many safety accidents have occurred in the electric drive system of electric vehicles. In order to reduce the occurrence of safety accidents, on the one hand, manufacturers of electric vehicles and electric drive systems strengthen their reliability through various tests, and on the other hand, through some protection circuits, electric vehicles can be safely protected in case of failure, so as to avoid safety accidents happened. Contents of the invention [0003] The present invention provides a protection circuit for an electric drive system of an electric vehicle, characte...

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): B60L3/04
CPCB60L3/04Y02T10/72
Inventor 古强张迪德王坚夏一帆李勇彭再武石魏肖小春黄志勇
Owner HUNAN CSR TIMES ELECTRIC VEHICLE
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