Electric vehicle charging method and electric vehicle charging device based on storage battery monitoring and fault diagnosis

A technology for battery packs and electric vehicles, applied in battery circuit devices, electric vehicles, circuit devices, etc., can solve problems such as large impact on battery life, prone to failure, complex working environment of batteries, etc., to improve safety and timely fault warning, Significant technical effects, effects of significant practical use value

Active Publication Date: 2016-10-26
ZHEJIANG WANMA NEW ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems that the working environment of the battery for electric vehicles is complex, the life...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0032] A charging method for electric vehicles based on battery pack monitoring and fault diagnosis, which is suitable for monitoring and detection of electric vehicle battery packs, comprising the following steps:

[0033] Step 1, during the operation of the electric vehicle, monitor the discharge voltage and current of the battery pack for fluctuations or sudden changes, collect and store the voltage and current signals during the discharge process, and upload the stored data to the charging device every time it is charged;

[0034] Step 2, the charging device processes and classifies the uploaded data, and deletes the stored data in the electric vehicle at the same time, vacating the storage space;

[0035] Step 3: Perform fault diagnosis analysis and battery life prediction on the data processed and classified by state data processing;

[0036] Step 4, complete the prediction of battery life and diagnosis of fault status, and feedback to the user;

[0037] Step 5, if the ...

Embodiment 2

[0055] Also includes a battery monitoring management module,

[0056] The battery monitoring and management module gives battery pack maintenance suggestions based on the analysis results of the fault diagnosis and analysis module, and feeds back to the user through the human-computer interaction system. While giving the battery maintenance strategy, it sends control commands to the charging control module to adjust the charging current and voltage to ensure The battery pack is safe to use.

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PUM

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Abstract

The invention relates to an electric vehicle charging method based on storage battery monitoring and fault diagnosis, wherein the electric vehicle charging method settles defects in prior art. The electric vehicle charging method comprises the steps of monitoring fluctuation or abrupt change of discharging voltage and current of the storage battery, acquiring a voltage signal and a current signal in the discharging process and storing the acquired voltage signal and the acquire current signal, and uploading the stored data to the charging device in each charging; processing and classifying the uploaded data by the charging device, furthermore deleting the data stored in the electric vehicle, and emptying a storage space; performing fault diagnosis and battery service prediction through performing state data processing on the classified data; finishing battery service life prediction and fault state diagnosis, and performing feedback to a user; if a greatly safety potential hazard exists in the battery, transmitting fault early-warning on the user, and simultaneously stopping power supply to the storage battery; and when a latent fault risk exists, transmitting early-warning to the user, and acquiring the battery service life and fault prediction information by the user.

Description

technical field [0001] The invention relates to a charging method and device based on battery pack monitoring and fault diagnosis, in particular to an electric vehicle charging method and device based on battery pack monitoring and fault diagnosis. Background technique [0002] With the continuous development of electric vehicle technology, more and more consumers have begun to recognize and choose to purchase electric vehicles. The most critical factor affecting electric vehicles is the battery life of electric vehicles, and with the use of electric vehicles, the battery will degrade, and the entire battery will lose about 20% of its capacity. The battery pack is the core of an electric vehicle, and its performance determines the quality and user experience of an electric vehicle. Its operating environment is complex and changeable, and the battery life of the battery pack will be greatly reduced due to the influence of temperature. Therefore, the monitoring and fault diag...

Claims

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Application Information

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IPC IPC(8): H02J7/00
CPCH01M10/4257H02J7/00H02J7/007Y02E60/10
Inventor 何若虚
Owner ZHEJIANG WANMA NEW ENERGY
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