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Electric vehicles

Patent Application for Adapting Charge Level of a Battery Released

Strategic Insights

— 2 min read

A patent application for a computer system and method that adapts the charge level of a battery to increase battery lifetime has been made available online. The application, filed on October 29, 2024, was posted on May 8, 2025, by the inventors Linus Nordholm and Martin Wilhelmsson. The patent's assignee is Volvo Truck Corporation.

The system and method acquire historical battery charging data and determine whether the starting energy level exceeds a set energy threshold value. If it does, the system decreases the target charge level being applied during an upcoming charging session for the battery, such that an expected starting energy level of the battery at upcoming charging sessions is decreased to the set energy threshold value. The system also configures the processing circuitry to select a lowest starting energy level, compute an average or median value, discard outliers, allow a user to set the energy threshold value, or set the energy threshold value to a predetermined offset.

According to the inventors' background information, high energy levels may increase battery ageing and decrease battery lifetime. The technical benefit of this invention is to increase battery lifetime.

Key Takeaways:

  • The patent application, filed on October 29, 2024, was published on May 8, 2025, by the inventors Linus Nordholm and Martin Wilhelmsson.
  • The system and method acquire historical battery charging data and determine whether the starting energy level exceeds a set energy threshold value.
  • If the starting energy level exceeds the threshold, the system decreases the target charge level to increase battery lifetime.
  • The system configures the processing circuitry to select a lowest starting energy level, compute an average or median value, discard outliers, allow a user to set the energy threshold value, or set the energy threshold value to a predetermined offset.
  • The invention aims to increase battery lifetime by reducing high energy levels that may Age the battery.
  • Volvo Truck Corporation is the patent's assignee, and the inventors are from Sweden.

Statistics:

  • The patent application was filed on October 29, 2024.
  • The system and method acquire historical battery charging data.
  • The expected starting energy level is decreased to the set energy threshold value.
  • The system configures the processing circuitry to select a lowest starting energy level or compute an average or median value.
  • The system also discards outliers, allows a user to set the energy threshold value, or sets the threshold to a predetermined offset.

Sources:

  • US Patent Application Number 20250145042
  • Nordholm, Linus; Wilhelmsson, Martin. Adapting Charge Level Of A Battery. U.S. Patent Application Number 20250145042, filed October 29, 2024 and posted May 8, 2025. Patent URL (for desktop use only): https://ppubs.uspto.gov/pubwebapp/external.html?q=(20250145042)&db=US-PGPUB&type=ids
  • Volvo Truck Corporation

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