CHARGING SYSTEM AND ELECTRIC VEHICLE

DE602022037739T2Active Publication Date: 2026-05-27HUAWEI DIGITAL POWER TECH CO LTD

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Patent Information

Authority / Receiving Office: DE · DE
Patent Type: Patents
Current Assignee / Owner: HUAWEI DIGITAL POWER TECH CO LTD
Filing Date: 2022-01-20
Publication Date: 2026-05-27

AI Technical Summary

Technical Problem

Existing charging systems for electric vehicles with 800 V high-voltage power batteries are unable to directly utilize 500 V fast direct current charging piles, leading to charging difficulties and suboptimal user experience.

Method used

A charging system incorporating a motor control unit (MCU) with N bridge arms and an inductor that performs boost or buck conversion on the power supply voltage or battery voltage to adapt it to the power battery's charging voltage range, using a voltage conversion circuit to ensure effective charging.

Benefits of technology

The system enables charging of high-voltage power batteries by adjusting voltage levels to match the power battery's requirements, reducing system size and cost by utilizing a common MCU, and enhancing charging convenience.

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