Method for realizing parallel connection of two sets of vehicle-mounted battery systems

A technology of a battery system and a battery management system, applied in the field of vehicle battery systems, to achieve the effects of reducing damage to high-voltage devices, prolonging service life, and reducing charge and discharge current

Active Publication Date: 2017-09-08
奇可家居有限公司
View PDF4 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a method for parallel connection of two sets of battery systems in vehicles, which solves the shortage of ex

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 for realizing parallel connection of two sets of vehicle-mounted battery systems

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] The preferred embodiments of the present invention are given below in conjunction with the accompanying drawings to describe the technical solution of the present invention in detail.

[0014] Such as figure 1 As shown, the method of the present invention for parallel connection of two vehicle battery systems includes a total positive relay 1, a total negative relay 3, a battery management system (BATTERY MANAGEMENT SYSTEM, BMS) 4, a 24V power supply 5, a first parallel relay 6, and a parallel protection Relay 7, second parallel relay 8, pre-charging resistor 9, first battery system 10, second battery system 11, total positive relay 1, battery management system 4, first parallel relay 6, parallel protection relay 7, second parallel The relay 8 is connected in parallel, the parallel protection relay 7 is connected in series with the pre-charging resistor 9, the first parallel relay 6 is connected in series with the first battery system 10, the second parallel relay 8 is ...

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 discloses a method for realizing parallel connection of two sets of vehicle-mounted battery systems. A general positive relay and the like are included; the general positive relay, a battery management system, a first parallel relay, a parallel-connection protection relay and a second parallel relay are connected in parallel; the parallel-connection protection relay is connected with a pre-charging resistor in series; the battery management system is connected with a 24V power supply in series; and a first battery system and a second battery system are connected in parallel for supplying power for at least one electronic load. By adoption of the method, the problem existing in improvement of charging and discharging rate when the conditions of energy density, energy requirement and the like are not changed in the power supply system of the existing power automobile is solved; compared with the conventional design, the charging and discharging current can be effectively lowered; damage to a high-voltage device caused by heating due to a high current is effectively reduced, heating in the connecting place of battery modules is lowered, and the long-standing problem existing in module connecting design is relieved; the problem of ring current impact of parallel instantaneous high current in parallel connection use is solved; and the battery system is more reliable, and the service life of electrical devices can be prolonged.

Description

technical field [0001] The invention relates to the field of a vehicle battery system, in particular to a method for parallel connection of two vehicle battery systems. Background technique [0002] In the existing technology, a battery system is mainly used as the power source of the car. However, with the continuous change of social needs, the voltage platform continues to rise, and the demand for high-rate output is urgent. difficulties, especially the higher and higher requirements for high-voltage connections. [0003] In order to improve the social needs, two sets of systems are used in parallel as the power source of the electric vehicle, which can realize the characteristics of high voltage and low current of a single system, and effectively improve the current influence on the device caused by the temperature rise caused by excessive current. In the past, supercapacitors were used as the power source of electric vehicles. This method can solve the problem but at th...

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): H01M10/42H01M10/44H02J7/00B60L11/18B60L3/00
CPCB60L3/00B60L58/19B60L58/21H01M10/4207H01M10/425H01M10/441H01M2010/4271H02J7/0029H02J7/0063Y02E60/10Y02T10/70
Inventor 郭文涛邓友张邦玲张小聪
Owner 奇可家居有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap