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Battery group discharging control method and battery group charging control method

A technology of discharge control and control method, applied in the direction of secondary battery charging/discharging, battery circuit device, secondary battery repair/maintenance, etc. Effect

Active Publication Date: 2014-11-26
ZHENGZHOU YUTONG BUS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a battery pack discharge control method and a charging control method to solve the problem of shortened battery life and damage to the battery due to the existence of circulating currents in the current parallel battery packs on the vehicle

Method used

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  • Battery group discharging control method and battery group charging control method
  • Battery group discharging control method and battery group charging control method
  • Battery group discharging control method and battery group charging control method

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Embodiment Construction

[0021] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0022] The purpose of the present invention is to realize the safety management and effective control of the parallel use of vehicle-mounted power batteries. It mainly aims at eliminating or suppressing the circulation of the battery pack through a reasonable and effective control strategy, thereby protecting the safety of the battery and avoiding the occurrence of secondary safety accidents. , to ensure the safety of personnel and vehicle resources.

[0023] The battery pack used in the present invention includes a battery management system and relays that are respectively connected to each battery pack in the battery pack. The positive poles of each battery pack in the battery pack are connected to the load through their corresponding relays, and the negative poles are directly connected to the load after parallel connection. The correspon...

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Abstract

The invention relates to a battery group discharging control method and a battery group charging control method, and belongs to the technical field of new energy automotive power battery application. Aiming at circular current of a parallel-connected battery group, battery packs are connected in parallel after respectively passing through corresponding relays, on / off of each relay is controlled according to voltage sampling on and the specific state of the corresponding battery pack so as to realize charging and discharging control on the battery packs, battery information is transmitted to a finished automobile through a finished automobile CAN, and the finished automobile makes appropriate power request and restrictions according to information sent by a battery management system so as to eliminate or suppress circular current of the battery packs connected in parallel, ensure the maximum output capacity of the batteries and ensure the safety of the batteries and personnel.

Description

technical field [0001] The invention relates to a discharge control method and a charge control method of a battery pack, belonging to the technical field of new energy vehicle power battery applications. Background technique [0002] Automobile is an important means of transportation in modern society, and it is also an important pillar industry of the national economy. With my country's sustained and rapid economic development and accelerated urbanization, the demand for automobiles will continue to grow for a long period of time in the future, and the resulting energy shortage and environmental pollution will become more prominent. Accelerating the cultivation and development of energy-saving vehicles and new energy vehicles is not only an effective way to alleviate the pressure on energy and the environment, but also an urgent task to promote the sustainable development of the automotive industry. The General Office of the State Council issued the "Energy Saving and New...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H01M10/44
CPCY02E60/10
Inventor 游祥龙杜颖颖周时国孙艳艳郭忠杰吴小岭王坤
Owner ZHENGZHOU YUTONG BUS CO LTD
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