Patent ID: 11953558
Assignee: VOLVO TRUCK CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H  Y | IPC G  H

Claim 0:
1. A method for estimating the state-of-health, SoHest, of a battery in a vehicle, the method comprising:
determining a first battery property and a battery temperature of a battery in a vehicle;
calculating a state-of-health, SoHcalc, of a battery cell based on the determined first battery property using a predetermined model;
providing a function ƒ estimating a battery cell degradation rate;
updating a state-of health estimated in a previous time step according to

SoHest←SoHest+ƒ·dt+K·(SoHcalc−SoHest),

where K is a gain factor which is dependent on operating conditions of the vehicle, and wherein K is modified for each time step using a reinforcement learning agent.