Method for determination of parameters of lithium-ion battery in e.g. hybrid vehicle, involves defining parameters by equivalent circuit of vehicle battery, and determining parameters based on neural networks

The method involves defining parameters by an equivalent circuit of a vehicle battery, and determining the parameters based on structured neural networks. An internal resistor (Rohm) of the vehicle battery is determined as the parameters based on the neural networks. The parameters are determined based on the neural networks depending on an input parameter measured in a motor vehicle. Temperature of the vehicle battery is measured and used as the input parameter. The parameters are determined based on the neural networks depending on a charging condition of the vehicle battery. An independent claim is also included for a device for a motor vehicle for executing a method for determination of parameters of a vehicle battery in a motor vehicle. Die Erfindung betrifft ein Verfahren zum Bestimmen eines Parameters (Rohm, R1, R2, C1, C2) einer Fahrzeugbatterie in einem Kraftfahrzeug, wobei der Parameter (Rohm, R1, R2, C1, C2) durch ein Ersatzschaltbild der Fahrzeugbatterie definiert ist, und wobei der Parameter (Rohm, R1, R2, C1, C2) anhand eines neuronalen Netzes (SNN1, SNN2, SNN3) bestimmt wird.