Battery management system for determining a health of a power source based on an impedance indicator
AssigneesVolkswagen Aktiengesellschaft, The Board of Trustees of the Leland Stanford Junior University
InventorsGianina Alina Negoita, William Arthur Paxton, Anirudh Allam, Simona Onori, Gabriele Pozzato, Luca Pulvirenti
Life of this patent
Estimating the term…
Abstract
A method is provided. The method includes determining an open circuit voltage of a battery of a vehicle. The method also includes determining a voltage of a current provided to the battery of the vehicle. The method further includes determining a impedance indicator based on the voltage, the open circuit voltage, and the current provided to the battery of the vehicle. The method further includes determining a health of the battery based on the impedance indicator.
Claims20
A method, comprising:
- determining, by a battery management system included within a vehicle, an open circuit voltage of a battery of the vehicle;
- measuring, by the battery management system, a voltage of a current provided to the battery of the vehicle;
- determining, by the battery management system, an impedance indicator based on the measured voltage, the open circuit voltage, and the current provided to the battery of the vehicle;
- and
- determining, by the battery management system, a health of the battery based on the impedance indicator.
An apparatus, comprising:
- a memory configured to store data;
- and
- a processing device coupled to the memory, the processing device configured to:
- determine, by a battery management system included within a vehicle, an open circuit voltage of a battery of the vehicle;
- measure, by the battery management system, a voltage of a current provided to the battery of the vehicle;
- determine, by the battery management system, an impedance indicator based on the measured voltage, the open circuit voltage, and the current provided to the battery of the vehicle;
- and
- determine, by the battery management system, a health of the battery based on the impedance indicator.
A non-transitory computer-readable storage medium including instructions that, when executed by a processing device, cause the processing device to:
- determine, by a battery management system included within a vehicle, an open circuit voltage of a battery of the vehicle;
- measure, by the battery management system, a voltage of a current provided to the battery of the vehicle;
- determine, by the battery management system, an impedance indicator based on the measured voltage, the open circuit voltage, and the current provided to the battery of the vehicle;
- and
- determine, by the battery management system, a health of the battery based on the impedance indicator.
Dependencies are inferred from the claim text.