High voltage battery architecture

EP4758669A1Pending Publication Date: 2026-06-17ARCHER AVIATION INC
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Patent Information

Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
ARCHER AVIATION INC
Filing Date
2024-05-13
Publication Date
2026-06-17

AI Technical Summary

Technical Problem

Electric aircraft, particularly tilt-rotor aircraft with electric propulsion systems, face challenges in ensuring redundancy and fault tolerance in their high voltage power systems to prevent single points of failure and allow safe shutdown in emergency situations like crashes.

Method used

The implementation of a redundant electrical system with paired battery packs connected via high voltage buses and low voltage cut loops allows for safe shutdown of high voltage power in emergency situations, ensuring that power is disconnected from the aircraft upon detection of a crash and loss of low voltage continuity.

Benefits of technology

This solution provides enhanced safety and reliability by ensuring that the high voltage power system can be safely shut down in emergency conditions, preventing damage to critical aircraft components and allowing first responders to safely manage the aircraft post-crash.

✦ Generated by Eureka AI based on patent content.

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Abstract

A method of controlling aircraft power distribution comprises: receiving aircraft state information of an aircraft, detecting whether the aircraft state information indicates a crash, and disconnecting supply of high voltage power to the aircraft by at least one battery upon detecting both that the aircraft state information indicates a crash and a loss of continuity in at least one low voltage wire.
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