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Micro electric passenger vehicle lithium ion battery management system and method

A lithium-ion battery and battery management module technology, which is applied to electric vehicles, secondary batteries, battery circuit devices, etc., can solve problems such as inoperability and non-existence of the function of switching lithium batteries, and achieve the effect of increasing the service life

Inactive Publication Date: 2019-12-10
扬州道爵新能源发展有限公司
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Problems solved by technology

[0003] The traditional battery management system manages the parameters of a single group of batteries, and there is no function of switching lithium batteries, so that it will not be able to operate when there is a problem with the battery

Method used

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  • Micro electric passenger vehicle lithium ion battery management system and method

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with the accompanying drawings.

[0014] A lithium-ion battery management system for a miniature electric passenger car, comprising a battery management module 1, a first power detection module 2, a second power detection module 3, a first lithium battery 4, a second lithium battery 5, a temperature sensor 6, a current A sensor 7, a voltage sensor 8, a power switching module 9, and a power interface 10, the input terminals of the battery management module 1 are respectively connected to the first power detection module 2, the second power detection module 3, and the temperature sensor 6 , the current sensor 7, the voltage sensor 8, the output terminal of the battery management module 1 is connected to the power switching module 9, the first battery detection module 2 is connected to the first lithium battery 4, and the second The second battery detection module 3 is connected to the second lithium batt...

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Abstract

The invention discloses a micro electric passenger vehicle lithium ion battery management system. The micro electric passenger vehicle lithium ion battery management system comprises a battery management module, a first electric quantity detection module, a second electric quantity detection module, a first lithium battery, a second lithium battery, a temperature sensor, a current sensor, a voltage sensor, a power supply switching module and a power supply interface. According to the micro electric passenger vehicle lithium ion battery management system, the first lithium battery and the second lithium battery are arranged, so that the operation of a vehicle cannot be influenced even if one group of batteries have faults; and meanwhile, an additional group of batteries can be arranged to prevent one group of batteries from operating continuously, so that the service life of batteries is prolonged.

Description

technical field [0001] The invention belongs to the field of lithium batteries, in particular to a lithium-ion battery management system and method for miniature electric passenger vehicles. Background technique [0002] Electric vehicle battery management system (BMS) is an important link connecting vehicle power batteries and electric vehicles. Its main functions include: real-time monitoring of battery physical parameters; battery state estimation; online diagnosis and early warning; charging, discharging and pre-charging control; balance management and thermal management etc. [0003] The traditional battery management system manages the parameters of a single group of batteries, and there is no function of switching lithium batteries, so that it will not be able to operate when there is a problem with the battery. Contents of the invention [0004] Purpose of the invention: The present invention aims to solve the above problems, and proposes a lithium-ion battery man...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L58/18H02J9/06
CPCH01M10/4257H01M2010/4271H02J7/36Y02E60/10Y02T10/70
Inventor 李侃滕腾
Owner 扬州道爵新能源发展有限公司
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