一种电动车智能补电方法、系统及存储介质

By combining segmented current detection, incremental PI algorithm and fuzzy PID control, the problems of battery depletion in the sleep state and excessive current in the early stage of charging of electric vehicles are solved, realizing safe and adaptive charging and preventing battery damage.

CN117429316BActive Publication Date: 2026-07-17GUANGZHOU HAIPERTE TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GUANGZHOU HAIPERTE TECH CO LTD
Filing Date
2023-10-20
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing electric vehicles consume power for extended periods while in sleep mode, causing the 24V low-voltage power supply to run out of power and preventing normal startup. Furthermore, excessive current during the initial charging phase may cause the battery plates to bend and become unusable.

Method used

The segmented current detection algorithm is used to calculate the vehicle VCU wake-up time, combined with the incremental PI algorithm to calculate the DC-DC output voltage, and the charging current is adjusted by the fuzzy PID control algorithm. A preset threshold is set to control the charging completion.

Benefits of technology

It effectively avoids damage to the battery due to excessive current in the early stages of charging, maintains the battery at an appropriate capacity, ensures charging safety, prevents battery plates from bending, and achieves intelligent power replenishment.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明涉及一种电动车智能补电方法、系统及存储介质,所述方法包括:S1.车辆VCU唤醒前,只有DCDC工作,实时获取DCDC的第一输出电流数据信息,采用分段电流检测算法对车辆VCU唤醒时间进行推算,输出车辆VCU唤醒时间的数据信息;S2.基于所述车辆VCU唤醒时间的数据信息,控制车辆VCU唤醒,VCU唤醒后使能DCDC,实时获取DCDC的第二输出电流数据信息,采用增量式PI算法对DCDC的输出电压进行推算,输出DCDC的输出电压数据信息。本发明不仅解决了在充电初期电流过大,容易使蓄电池极板弯曲,造成电池报废的问题,而且自适应电池充电,保持电池在合适的容量,限制电池充电电流,避免电池充电电流过大损坏。
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