電力変換装置

JP7891845B2Active Publication Date: 2026-07-17MITSUBISHI ELECTRIC MOBILITY CORP
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
MITSUBISHI ELECTRIC MOBILITY CORP
Filing Date
2022-05-23
Publication Date
2026-07-17

AI Technical Summary

Benefits of technology

【0011】 本願に係る電力変換装置によれば、内燃機関に駆動された第一の回転電機が発生した交流電流を直流電流に変換する第一の電力変換器の電流センサと、バッテリ電圧を昇圧する直流電力変換器の電流を計測する電流センサとに電源を供給する第一のセンサ電源と、駆動輪と結合された第二の回転電機に交流電流を供給する第二の電力変換器の電流センサに電源を供給する第二のセンサ電源を設けたので、センサ電源の故障に対応してリンプホーム機能を確保しつつ、センサ電源の数を最小化した電力変換装置を得ることができる。これによって、電力変換装置のセンサ電源の数を削減して小型化、軽量化、低コスト化を進めることができる。

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Abstract

To obtain an electric power conversion device that minimizes the number of sensor power supplies while ensuring a limp home function in correspondence to a failure of the sensor power supplies of a current sensor of the electric power conversion device.SOLUTION: Provided is an electric power conversion device including: a first power converter that converts AC current generated by a first rotary electric machine coupled to an internal combustion engine into DC current; a second power converter that converts DC current into AC current and supplies a second rotary electric machine coupled to a drive wheel with the AC current; a DC power converter that changes the voltage of a battery; a first current sensor that measures current between the first power converter and the first rotary electric machine; a second current sensor that measures current between the second power converter and the second rotary electric machine; a DC power converter current sensor that measures current between the battery and the DC power converter; a first sensor power supply that supplies power to the first current sensor and the DC power converter current sensor; and a second sensor power supply that supplies power to the second current sensor.SELECTED DRAWING: Figure 1
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