Battery power map switching method, system, storage medium and switching device

By establishing the offline current and polarization voltage MAP relationship during battery charging and discharging, and combining it with a pseudo-two-dimensional electrochemical model, dynamic adaptive switching of battery power is achieved, which solves the problem of the conservative battery SOF switching strategy and improves the stability and reliability of the battery.

CN116404281BActive Publication Date: 2026-07-24DR OCTOPUS INTELLIGENT TECH (SHANGHAI) CO LTD
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
DR OCTOPUS INTELLIGENT TECH (SHANGHAI) CO LTD
Filing Date
2022-12-29
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

In existing battery management systems, the battery SOF switching strategy is generally conservative, which leads to the battery power performance not being fully utilized, and may damage the battery when parameters are abnormal, affecting the battery's stability and reliability.

Method used

By acquiring the offline current MAP and polarization voltage MAP during battery charging and discharging, a corresponding relationship is established. The battery power is switched using the real-time polarization voltage. Combined with the pseudo-two-dimensional electrochemical model, the negative electrode polarization potential is calculated in real time to ensure that the battery switches power in a safe state.

Benefits of technology

It achieves dynamic adaptive switching of battery power, ensuring battery stability and reliability, making full use of battery power performance, and avoiding overcharging or over-discharging.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN116404281B_ABST
    Figure CN116404281B_ABST
Patent Text Reader

Abstract

Embodiments of the present application disclose a battery power MAP switching method, system, storage medium and switching device, wherein the battery power MAP switching method comprises: acquiring an offline current MAP and a power MAP during battery charging and discharging; acquiring a polarization voltage MAP during battery charging and discharging according to the offline current MAP, and establishing a corresponding relationship between the power MAP and the polarization voltage MAP; acquiring a real-time polarization voltage during battery charging and discharging, comparing the real-time polarization voltage with the polarization voltage MAP, and switching real-time power during battery charging and discharging according to the corresponding relationship between the power MAP and the polarization voltage MAP. According to the present application, the polarization voltage during battery charging and discharging is taken as a core index, and a real-time internal resistance is not measured, so that an online, dynamic and adaptive switching method is obtained, battery power capability can be fully exhibited, and the stability and reliability of the battery are ensured.
Need to check novelty before this filing date? Find Prior Art