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Method and system for managing usage of battery based on service life of contactor of battery

A life management and contactor technology, which is applied in battery/fuel cell control devices, electric vehicles, electric traction, etc. It can solve the problems of component damage and increase in the cost of manufacturing parts, and achieve extended battery life and high performance. Effect

Active Publication Date: 2016-11-16
QOROS
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Problems solved by technology

Because the time is too long, the excessive electrical stress will damage the components of the pre-charging circuit 3 and / or increase the cost of manufacturing parts, because these components must withstand excessive electrical stress in order to reduce the pre-charging time and the required low dropout.
In addition, the positive main contactor 21 is subjected to excessive electrical stress because it is closed in a short time, which will cause an instantaneous peak current

Method used

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  • Method and system for managing usage of battery based on service life of contactor of battery
  • Method and system for managing usage of battery based on service life of contactor of battery
  • Method and system for managing usage of battery based on service life of contactor of battery

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Embodiment Construction

[0038] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. Embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

[0039] The terminology used in this application is for the purpose of describing particular embodiments only, and is not intended to limit the application. As used in this application and the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term "and...

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Abstract

The application of the invention discloses a method and system for managing the usage of a battery based on the service life of a contactor of the battery. The method comprises the following steps of step I, setting a contactor stress factor for calculating the ageing of the contactor; step II, according to the contactor stress factor, calculating a system power calibration factor; step III, according to the system power calibration factor, calculating the maximum power which can be output by the battery or calculating a maximum value of precharge time; and step IV, safely outputting the maximum power or safely adjusting the precharge time to the maximum value by a battery management system. Through the method disclosed by the application of the invention, the maximum performance of the usage of the battery is realized or the service life of the battery is prolonged.

Description

technical field [0001] The present application relates to the field of electric vehicles, and in particular to a method and system for managing battery usage based on battery contactor service life. Background technique [0002] With the use of the battery pack, its internal component batteries, contactors, fuses, switches, and the battery pack itself will gradually age, and the performance will be affected accordingly. Therefore, when designing the battery pack, it is necessary to ensure that it is within its service life It can meet the requirements of power, energy, efficiency, etc., so as to meet the needs of actual use. [0003] If the internal components of the battery pack age beyond a certain level, the output of the battery will not meet the design requirements, which is generally defined as the "end of life (EOL: End Of Life)" stage of the battery. Therefore, at the beginning of use, the storage battery is in the "beginning of life (BOL: Begin of Life)" stage, and...

Claims

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Application Information

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IPC IPC(8): B60L11/18
CPCB60L58/10B60L58/12Y02T10/70
Inventor 彦斯·贝肯丁力·罗伯特胡壮丰
Owner QOROS
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