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

Charging control device, electricity storage device, and charging method

A charging control and charging method technology, applied in battery/fuel cell control devices, circuit devices, battery circuit devices, etc.

Pending Publication Date: 2020-07-10
GS YUASA INT LTD
View PDF1 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if it is compatible with lead-acid batteries, it may be charged at a charging voltage different from the assumed charging setting voltage, such as being charged by a charger for lead-acid batteries.

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
  • Charging control device, electricity storage device, and charging method
  • Charging control device, electricity storage device, and charging method
  • Charging control device, electricity storage device, and charging method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0044] 1. Description of the battery

[0045] figure 1 is the side view of the car, figure 2 is a perspective view of the battery, image 3 It is an exploded perspective view of the battery, Figure 4 It is a block diagram showing the electrical configuration of the storage battery.

[0046] Such as figure 1 As shown, the automobile 1 includes a battery 20 as a power storage device. Such as figure 2 As shown, the storage battery 20 has a block-shaped battery case 21 , and a battery pack 30 including a plurality of secondary batteries B1 to B4 and a control board 28 are accommodated in the battery case 21 .

[0047] Such as image 3As shown, the battery case 21 is configured to include: a box-shaped case main body 23 opening upward, a positioning member 24 for positioning the plurality of secondary batteries B1 to B4 , an intermediate cover 25 attached to the upper portion of the case main body 23 , and Upper cover 26. Such as image 3 As shown, in the case main bod...

Embodiment approach 2

[0102] In Embodiment 1, when the total voltage Ev of the battery pack 30 is higher than the charge setting voltage Eo, the CPU 101 controls the FET 65A of the first charging path 61A and the FET 65B of the second charging path 61B so as to be turned on. Signals (signals for controlling the FETs to be on) are alternately input by a half cycle Ts / 2, and alternately switch between energization and de-energization of the two charging paths 61A and 61B.

[0103] In Embodiment 2, when the total voltage Ev of the battery pack 30 is higher than the charging set voltage Eo, the CPU 101 performs control to switch the charging paths 61A and 61B according to the temperature conditions of the FET63A and FET63B, specifically the temperature difference. The temperature information of each FET 63A, 63B can be acquired by the temperature sensor 67 .

[0104] Figure 12 It is a flowchart of the switching control of the charging path based on the temperature difference. CPU 101 controls FET 63...

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

This charging control device 50 controls charging of electricity storage elements B1-B4 and is provided with: a plurality of charging paths 61A, 61B leading to the electricity storage elements and connected in parallel with each other; voltage drop elements 64A, 64B and switches 65A, 65B which are connected in series on the charging paths; and a control unit 100. The control unit 100 controls theswitches 65A, 65B and thereby switches a charging path not to be energized among the plurality of charging paths 61A, 61B during charging.

Description

technical field [0001] The present invention relates to a technique for charging an electric storage element. Background technique [0002] A lithium-ion secondary battery (hereinafter referred to as LIB) is mounted instead of a lead-acid battery as a battery for starting an engine of a vehicle. Advantages thereof include longer battery life and improved acceptance of regenerative charging. Since lead storage batteries and LIBs have different charge setting voltages due to differences in their characteristics, dedicated chargers are required for each. In consideration of compatibility with lead-acid batteries, the external shape and terminal structure are made common. However, if it is compatible with a lead storage battery, charging may be performed at a charging voltage different from an assumed charging setting voltage, such as charging by a charger for a lead storage battery. Patent Document 1 described below describes that a diode is provided on a charging path in or...

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): H02J7/00H01M10/42H01M10/48
CPCY02E60/10H02J7/00309H02J7/007192H02J7/06H01M10/4207H01M10/482H01M10/486Y02T10/70Y02T10/7072Y02T90/12B60L53/62B60L58/24H02J7/007182
Inventor 今中佑树
Owner GS YUASA INT LTD