Power control device and method thereof

The power control device with pulse and delay circuits simplifies and stabilizes battery management in electric vehicles by controlling relays, reducing complexity and costs in BMS systems.

WO2026127522A1 Publication Date: 2026-06-18LG ENERGY SOLUTION LTD
0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
LG ENERGY SOLUTION LTD
Filing Date
2025-12-05
Publication Date
2026-06-18

AI Technical Summary

⚠Technical Problem

Existing battery management systems (BMS) in electric vehicles are complex and costly, requiring dedicated processors for pre-charge functions, which can lead to increased production costs and potential instability due to high current surges during power distribution.

⚗Method used

A power control device incorporating a pulse generation circuit and delay circuit to manage pre-charge functions, reducing reliance on processors by controlling relays through a pre-charge relay and main relay, using an RC filter for stability, and grounding relays to prevent abnormality-induced damage.

🎯Benefits of technology

The solution simplifies BMS design, reduces production costs, and enhances stability by managing power distribution efficiently, preventing high current surges and protecting electronic components.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

A power control device according to an embodiment of the present document may comprise: a pulse generation circuit which is electrically connected to a pre-charge relay of a battery pack and generates a pulse at regular intervals, so as to close the pre-charge relay for a designated time, on the basis of receiving a command for activating a functional module of an electronic device including the power control device; and a delay circuit which is electrically connected to a driving relay, and closes the driving relay for controlling the driving of a main relay for providing power from the battery pack to the functional module, after the designated time, on the basis of receiving a command for activating a functional module.
Need to check novelty before this filing date? Find Prior Art