Electrical installation with two DC voltage sources, two networks, and an interconnection device

The electrical installation with an interconnection device and control system addresses the issue of power loss by switching configurations to maintain power supply to both networks when one DC voltage source fails, effectively isolating faults and ensuring continued operation.

FR3161326B1Active Publication Date: 2026-03-27VALEO EAUTOMOTIVE GERMANY GMBH
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Patent Information

Application Number
FR2024003683
Authority / Receiving Office
FR · FR
Patent Type
Patents
Current Assignee / Owner
Filing Date
2024-04-10
Publication Date
2026-03-27
Estimated Expiration
2044-04-10

AI Technical Summary

Technical Problem

Existing electrical installations with two DC voltage sources fail to maintain power supply when one source fails, causing the connected network to cease functioning, and existing solutions do not effectively manage failures without knowing the origin of the fault.

Method used

An electrical installation with an interconnection device comprising upstream and downstream switches, a junction switch, and a control device that switches configurations to ensure power is maintained by connecting a functioning DC voltage source to both networks, even if the failure's origin is unknown.

Benefits of technology

The solution effectively isolates faulty networks and maintains power to functional networks by switching configurations based on undervoltage detection, ensuring continued power supply without knowing the failure's origin.

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Abstract

The present invention relates to an electrical installation (102) for a mobility device (100), comprising: a first and a second DC voltage source; a first network (LV1) including a battery (BAT); a second network (LV2); an interconnection device (IT) comprising: first upstream (S11) and downstream (S12) switches, a second upstream switch (S21) and a junction switch (BP); and a control device (108) designed, in response to the detection of an undervoltage in the interconnection device (IT), to open the downstream switch (S12) connected to the first network (LV1) to place the interconnection device (IT) in a so-called safe configuration. Figure for the abstract: Fig. 2
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