Method for determining a state-of-charge operating window of a battery
AssigneeVolvo Truck Corporation
InventorsSimon Brunet, Tobias Smidebrant
Life of this patent
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Abstract
The invention relates to a method (100) for determining an adjusted state-of-charge (SOC) operating window of a battery pack assembly in a vehicle. The method comprises the steps of determining (120) an energy throughput or an electrical current through put of the battery pack assembly; determining (130) a SOC operating window margin based on said determined energy throughput or electrical current through put of the battery pack assembly;adjusting (140) the SOC operating window in response to the determined SOC operating window margin.
Claims16
A method for determining an adjusted state-of-charge (SOC) operating window of a battery pack assembly in a vehicle, the method comprising the steps of:
- measuring electrical current inflow and outflow of the battery pack assembly with a sensor unit;
- determining an energy throughput or an electrical current throughput of the battery pack assembly using the electrical current inflow and outflow of the battery pack assembly measured by the sensor unit;
- determining a SOC operating window margin with a control unit, based on said determined energy throughput or electrical current throughput of the battery pack assembly, wherein a magnitude of the SOC operating window margin is a function of the determined energy throughput or electrical current throughput of the battery pack assembly;
- and adjusting the SOC operating window in response to the determined SOC operating window margin.
An apparatus for determining an adjusted state-of-charge (SOC) operating window of a battery pack assembly in a vehicle, comprising:
- a memory operable to store computer-readable instructions;
- and
- a processor operable to read the computer-readable instructions, the processor when executing the computer-readable instructions is configured to:
- measure electrical current inflow and outflow of the battery pack assembly with a sensor unit
- determine an energy throughput or an electrical current throughput of the battery pack assembly using the electrical current inflow and outflow of the battery pack assembly measured by the sensor unit;
- determine a SOC operating window margin with a control unit, based on said determined energy throughput or electrical current throughput of the battery pack assembly, wherein a magnitude of the SOC operating window margin is a function of the determined energy throughput or electrical current throughput of the battery pack assembly;
- and
- adjust the SOC operating window in response to the determined SOC operating window margin.
A control unit for determine an adjusted state-of-charge (SOC) operating window of a battery pack assembly in a vehicle, the control unit being configured to:
- measure electrical current inflow and outflow of the battery pack assembly with a sensor unit:
- determine an energy throughput or an electrical current throughput of the battery pack assembly using the electrical current inflow and outflow of the battery pack assembly measured by the sensor unit
- determine a SOC operating window margin with a control unit, based on said determined energy throughput or electrical current throughput of the battery pack assembly, wherein a magnitude of the SOC operating window margin is a function of the determined energy throughput or electrical current throughput of the battery pack assembly;
- and
- adjust the SOC operating window in response to the determined SOC operating window margin.
Dependencies are inferred from the claim text.