Model predictive controller architecture and method of generating an optimized energy signal for charging a battery
AssigneeIontra Inc
InventorsZhong WANG, John Richard Howlett, Daniel A. Konopka, Ruzhou Yang, Lang Xia
Life of this patent
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Abstract
A model predictive controller and related charging components producing a charge signal for a battery wherein predicted battery parameters such as state of charge, battery temperature, state of health (e.g., anode overpotential), are used to generate constraints that are subsequently used, such as through an optimizer running a cost function, to produce a charge signal that may include one or more optimized charge attributes including a charge current magnitude or a mean current, a shaped leading edge, an edge time, a body time, and a rest time.
Claims42
A controller for a battery comprising:
- a processing unit including computer executable instructions of:
- a first model receiving a battery voltage measurement and a battery current measurement, and producing a predicted state of charge of the battery;
- a second model receiving the battery voltage measurement and the battery current measurement, and producing a predicted battery temperature;
- a third model receiving the battery voltage measurement and the battery current measurement, and producing a frequency based on an impedance assessment based on battery voltage measurement and the battery current measurement;
- the processing unit further comprising computer executable instructions to generate controls for a charge signal based on the predicted state of charge of the battery, the predicted battery temperature and the frequency.
A controller for a battery comprising:
- a processing unit including computer executable instructions of:
- a battery state of charge model receiving a battery parameter, and producing a predicted state of charge of the battery;
- a battery temperature model receiving the battery parameter, and producing a predicted battery temperature;
- an impedance model receiving the battery parameter, and producing a frequency based on an impedance assessment using the battery parameter;
- and
- the processing unit further comprising computer executable instructions to generate a charge signal based on the predicted state of charge of the battery, the predicted battery temperature and the frequency.
A method of battery charging:
- with a processor, predicting a battery parameter based on a measurement of a battery attribute and a controllable charge signal parameter;
- generating a constraint of the controllable charge signal parameter when the predicted battery parameter does not meet a parameter constraint;
- executing a cost function based on the constraint of the controllable charge signal parameter to alter the controllable charge parameter;
- and
- generating a charge signal to charge the battery, the charge signal based on the altered controllable charge parameter.
Dependencies are inferred from the claim text.