System and method for operating a hybrid or electric vehicle
A controlled energy-based cooling process for hybrid and electric vehicles addresses thermal management issues by cooling the drive energy storage system post-charging, ensuring optimal performance and comfort without compromising user experience.
WO2026114449A1PCT designated stage Publication Date: 2026-06-04BAYERISCHE MOTOREN WERKE AG
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- BAYERISCHE MOTOREN WERKE AG
- Filing Date
- 2025-10-24
- Publication Date
- 2026-06-04
AI Technical Summary
Technical Problem
Existing thermal management systems in hybrid and electric vehicles fail to effectively cool the drive energy storage system during charging, leading to performance degradation and reduced power output without compromising user comfort.
Method used
Implementing a system that cools the drive energy storage device after charging using a controlled energy-based process, limiting the energy used for cooling to a maximum predetermined amount, and terminating the process based on energy depletion, temperature reach, or time limits.
Benefits of technology
Enhances power output at departure by maintaining user comfort and preventing unexpected power degradation, while extending the lifespan of the drive energy storage system.
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Smart Images
Figure DE2025100993_04062026_PF_FP_ABST
Abstract
The invention relates to a system (100) for operating a hybrid or electric vehicle (1), comprising: a temperature-control module (HO) which is designed to cool a drive energy store (10) of the hybrid or electric vehicle (1); and a control module (120) which is designed to control the temperature-control module (110) in such a way that a cooling process of the drive energy store (10) is carried out during a time period (T2) following a charging process and prior to a departure of the vehicle (1) in such a way that, at most, a specified amount of energy from the drive energy store (10) is used for the cooling process.
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