18741446. SYSTEM AND METHOD FOR STEADY STATE VOLTAGE ESTIMATION IN A BATTERY SYSTEM FOR A VEHICLE (Volvo Truck Corporation)

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SYSTEM AND METHOD FOR STEADY STATE VOLTAGE ESTIMATION IN A BATTERY SYSTEM FOR A VEHICLE

Organization Name

Volvo Truck Corporation

Inventor(s)

Caroline Palm of Göteborg (SE)

Simon Brunet of Landvetter (SE)

SYSTEM AND METHOD FOR STEADY STATE VOLTAGE ESTIMATION IN A BATTERY SYSTEM FOR A VEHICLE

This abstract first appeared for US patent application 18741446 titled 'SYSTEM AND METHOD FOR STEADY STATE VOLTAGE ESTIMATION IN A BATTERY SYSTEM FOR A VEHICLE



Original Abstract Submitted

A computer system includes processing circuitry configured to measure an initial voltage Vo between a pole of a battery in a vehicle and a ground potential of the vehicle; connect a resistance between the pole of the battery and the ground potential; measure at least two voltages V(t) over the resistance before the voltage has reached a steady state voltage; fit a predetermined voltage step response model to the at least two measured voltages and the initial voltage; estimate a steady state voltage over the resistance based on the fitted voltage step response model; and determine an isolation resistance based on the estimated steady state voltage.

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