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Method, device, device and battery management system for detecting battery voltage

A battery voltage and battery technology, applied in the field of battery voltage detection and battery management system, can solve problems such as low accuracy

Active Publication Date: 2018-03-23
BEIJING ELECTRIC VEHICLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Embodiments of the present invention provide a method, device, device, and battery management system for detecting battery voltage, so as to at least solve the technical problem of relatively low accuracy in collecting battery cell voltage in the prior art

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  • Method, device, device and battery management system for detecting battery voltage
  • Method, device, device and battery management system for detecting battery voltage
  • Method, device, device and battery management system for detecting battery voltage

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Embodiment Construction

[0023] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0024] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...

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Abstract

The invention discloses a battery voltage detecting method, equipment and a device and a battery management system. The method comprises the following steps: a first voltage sampling wire bundle is arranged at a first end of an electric module for serially connecting a first battery with a second battery, and a second voltage sampling wire bundle is arranged at a second end of the electric module; voltage of the first battery is acquired through the first voltage sampling wire bundle and a third voltage sampling wire bundle, wherein the third voltage sampling wire bundle is arranged at one end of the first battery far from the first end of the electric module; and voltage of the second battery is acquired through the second voltage sampling wire bundle and a fourth voltage sampling wire bundle, wherein the fourth voltage sampling wire bundle is arranged at one end of the second battery far from the second end of the electric module. The method solves the technical problem of lower precision of battery monomer voltage acquisition in the prior art.

Description

technical field [0001] The present invention relates to the field of batteries, in particular to a method, device, device and battery management system for detecting battery voltage. Background technique [0002] Electric vehicles are powered by the on-board power supply, and the wheels are driven by motors. Electric vehicles have the advantages of less environmental pollution, less noise, and high energy efficiency, and have good development prospects. [0003] At present, electric vehicle battery packs are mostly composed of hundreds of batteries connected in series to meet the voltage and capacity requirements of the vehicle. The state of each battery is related to the performance of the entire battery pack. Status is monitored in real time. [0004] The battery management system of electric vehicles plays an important role in real-time monitoring of battery status, optimizing the use of battery energy, prolonging battery life and ensuring battery safety. The battery m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L3/00B60L11/18
CPCB60L3/0046B60L58/18Y02T10/70
Inventor 曹东林秦兴权张骞慧
Owner BEIJING ELECTRIC VEHICLE
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