Method for cooling a traction battery of a vehicle during thermal runaway of the traction battery
By independently managing cooling circuits and leveraging thermal inertia and ambient cooling, the method addresses thermal runaway in traction batteries, enhancing safety and efficiency during high-temperature events.
WO2026125827A1PCT designated stage Publication Date: 2026-06-18STELLANTIS AUTO SAS
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- STELLANTIS AUTO SAS
- Filing Date
- 2025-10-29
- Publication Date
- 2026-06-18
Smart Images
Figure FR2025000207_18062026_PF_FP_ABST
Abstract
One aspect of the invention relates to a method (100) for cooling a traction battery of a vehicle, the vehicle comprising a first cooling circuit for the battery and a second cooling circuit for a traction electric machine, wherein, following detection of thermal runaway of the battery, the method (100) carries out the steps of: fluidically disconnecting (101) the first and second circuits; deactivating (102) operation of the traction battery and of the traction electric machine; activating (103) operation of a first pump of the first circuit and of a second pump of the second circuit; fluidically connecting (105) the first and second circuits when: the temperature of the first circuit increases until reaching a first temperature threshold; or the temperature of the second circuit decreases until reaching a second temperature threshold.
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