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New energy automobile battery monitoring evaluation system and equilibrium evaluation method

A new energy vehicle and battery monitoring technology, which is applied in the direction of electric vehicles, battery circuit devices, battery charging management, etc., can solve the problems of short service life and simple functions of battery packs, and achieve extended service life, strong balancing ability, and monitoring The perfect effect of the project

Pending Publication Date: 2017-09-15
天津交通职业学院
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  • Abstract
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Problems solved by technology

[0004] In view of this, the present invention aims to propose a new energy vehicle battery monitoring and evaluation system to solve the problem that the existing electric vehicle battery monitoring system has simple functions and short service life of the battery pack

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  • New energy automobile battery monitoring evaluation system and equilibrium evaluation method
  • New energy automobile battery monitoring evaluation system and equilibrium evaluation method
  • New energy automobile battery monitoring evaluation system and equilibrium evaluation method

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Embodiment Construction

[0038] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0039] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood ...

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Abstract

The invention provides a new energy automobile battery monitoring evaluation system and an equilibrium evaluation method. The system herein includes a control processing module, a data acquiring module, and a SOC evaluation module, wherein the control processing module is in separate connection to the data acquiring module and the SOC evaluation module. The data acquiring module includes a voltage acquiring unit and a temperature acquiring unit. The voltage acquiring unit acquires voltage data of a storage battery. The temperature acquiring unit acquires temperature data of a battery. According to the invention, system herein can monitor multiple data indexes of the storage battery, and has improved monitoring projects; the system uses a composite circuit architecture which uses an ingenious Buck / Boost balanced control structure, has the characteristics of low cost, high reliability and strong balancing capability; the SOC estimation algorithm uses the integral method and introduces a temperature compensating coefficient and self-discharging loss, and increases precision of estimation.

Description

technical field [0001] The invention belongs to the technical field of electric vehicle batteries, and in particular relates to a new energy vehicle battery monitoring and evaluation system and an equalization evaluation method. Background technique [0002] SOC: The abbreviation of state of charge, which refers to the state of charge. When the battery is used for a period of time or left unused for a long time, the ratio of the remaining capacity to the capacity of the fully charged state is usually expressed as a percentage. [0003] Due to the difference in the production and processing of the battery, the difference in the processing technology and the difference in the use process (charging and discharging), there are differences between the single batteries. The imbalance (that is, inconsistency) between the single batteries makes the life of the series battery pack much shorter than that of the single power batteries, which reduces the safety of pure electric vehicle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H02J7/34
CPCH02J7/0021H02J7/0022H02J7/0026H02J7/345Y02T10/70
Inventor 田厚杰刘新宇
Owner 天津交通职业学院
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