Electric vehicle battery management system and method

A battery management system and technology for electric vehicles, applied in electric vehicles, battery/fuel cell control devices, power-consuming devices, etc., can solve problems such as limiting battery performance, product consistency is difficult to ensure, and charging and discharging differences.

Active Publication Date: 2017-05-17
XIAN UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]Existing electric vehicle batteries are composed of multiple single cells connected in series. Due to the differences in the production process of each single cell, it is difficult to guarantee product consistency. It is the same batch of battery p

Method used

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  • Electric vehicle battery management system and method
  • Electric vehicle battery management system and method
  • Electric vehicle battery management system and method

Examples

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Embodiment Construction

[0049] like figure 1As shown, an electric vehicle battery management system according to the present invention includes a pipe network connected to the vehicle air-conditioning pipeline and used to deliver temperature-regulating gas to the electric vehicle battery, and is used to monitor the use status of the electric vehicle battery The vehicle-mounted control terminal and the cloud computing processing platform 13 for wireless data transmission with the vehicle-mounted control terminal and remote calculation of the battery power of the electric vehicle. The pipe network includes a plurality of air outlet pipes, each of which has A proportional solenoid valve 11 is installed, the electric car battery includes a plurality of battery packs 1-1 connected in series in sequence, the vehicle control terminal includes a main controller 3 and a power supply 7, and a mobile transceiver for data communication with the main controller 3 device 8 and on-board computer 9, the input termin...

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Abstract

The invention discloses an electric vehicle battery management system and method. The system comprises a pipe network, a vehicular control terminal and a cloud computing processing platform, the pipe network comprises air outlet pipes, the vehicular control terminal comprises a main controller, a power supply, a movable transceiver, a vehicular computer, a display, a relay, a current sensor and a slave control unit, and an output end of the vehicular computer is connected with a vehicular air-conditioning control module and an alarm. The method includes the steps: acquiring and uploading electric vehicle battery current data; judging whether an electric vehicle battery is short-circuited or not; calculating the discharged electric quantity of the electric vehicle battery; acquiring the voltage and temperature data of each single battery; regulating the voltage value and the temperature value of each single battery and unloading the values in real time; estimating an SOC (system on chip) value of the single battery; calculating the remaining electric quantity of the electric vehicle battery and displaying and outputting the SOC value and the remaining electric quantity. The optimal working state of the electric vehicle battery is guaranteed, the service life of the electric vehicle battery is prolonged, and safety accidents are prevented.

Description

technical field [0001] The invention belongs to the technical field of electric vehicle battery management, and in particular relates to an electric vehicle battery management system and method. Background technique [0002] In recent years, due to the increasingly serious environmental problems caused by traditional fuel vehicles, countries all over the world are actively looking for a way out and vigorously developing electric vehicles. However, the promotion and popularization of electric vehicles is largely limited by electric vehicle battery technology and its management system. Electric vehicle battery technology and its management system are one of the three core technologies of electric vehicle technology, which determines the mileage and service life of electric vehicles. [0003] Existing electric vehicle batteries are composed of multiple single cells connected in series. Due to the differences in the production process of each single cell, it is difficult to gua...

Claims

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Application Information

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IPC IPC(8): B60L3/00B60L11/18
CPCB60L3/0046B60L58/10B60L58/20B60L58/24B60L2240/549B60L2240/547B60L2240/545Y02T10/70
Inventor 张传伟李林阳
Owner XIAN UNIV OF SCI & TECH
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