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US 9,519,029 B2Granted
Model-based battery monitoring
AssigneeHoneywell International Inc.
InventorsPavel Trnka, Vladimir Havlena
Life of this patent
Estimating the term…
Abstract
Methods, systems, and devices for monitoring a battery are described herein. One method includes receiving a plurality of values, each value associated with a respective battery characteristic, and determining an internal state associated with the battery based, at least in part, on the plurality of values.
Claims17
A method for monitoring a battery of a vehicle, comprising:
- receiving, at a computing device, a plurality of values from a plurality of sensors associated with a battery of a vehicle, each value associated with a respective battery characteristic;
- determining an internal state associated with the battery based, at least in part, on the plurality of values and a plurality of parameterized passive non-linear components of an equivalent circuit model of the battery, wherein the circuit includes a plurality of parallel sub-circuits, and wherein determining the internal state associated with the battery includes determining:
- a remaining charge associated with the battery;
- a state of health associated with the battery;
- a remaining energy associated with the battery;
- and
- an actual peak power associated with the battery;
- and
- displaying the determined internal state using a graphical user interface of the vehicle.
6 more elements
A system for monitoring a battery, comprising:
- a lithium-ion battery associated with a vehicle;
- at least one sensor associated with the battery;
- and
- a controller having logic to:
- receive a plurality of values, each value determined by the at least one sensor and associated with a respective characteristic of the battery;
- determine a plurality of internal state variables associated with the battery based, at least in part, on the plurality of values and a plurality of parameterized passive non-linear components of an equivalent circuit model of the battery, wherein the circuit includes a plurality of parallel sub-circuits, and wherein determining the plurality of internal state variables associated with the battery includes determining:
- a remaining charge associated with the battery;
- a state of health associated with the battery;
- a remaining energy associated with the battery;
- and
- an actual peak power associated with the battery;
- and
- display the determined plurality of internal state variables using a graphical user interface of the vehicle responsive to the determination of the plurality of internal state variables associated with the battery.
10 more elements
A non-transitory computer-readable medium having instructions stored thereon executable by a processor to:
- determine an initial internal state associated with a battery, wherein determining the initial internal state associated with the battery includes determining:
- an initial remaining charge associated with the battery;
- an initial state of health associated with the battery;
- an initial remaining energy associated with the battery;
- and
- an initial actual peak power associated with the battery;
- display the determined initial internal state using a graphical user interface;
- receive a plurality of values from at least one sensor associated with the battery, each value associated with a respective characteristic of the battery;
- and
- determine an updated internal state associated with the battery based on:
- the received plurality of values;
- a measurement model;
- and
- a description of an uncertainty associated with a plurality of constant parameters, wherein determining the updated internal state associated with the battery includes determining:
- an updated remaining charge associated with the battery;
- an updated state of health associated with the battery;
- an updated remaining energy associated with the battery;
- and
- an updated actual peak power associated with the battery;
- and
- predict a next internal state associated with the battery based on:
- the description of the uncertainty associated with the plurality of constant parameters;
- and
- a dynamic model, wherein predicting the next internal state associated with the battery includes predicting:
- a next remaining charge associated with the battery;
- a next state of health associated with the battery;
- a next remaining energy associated with the battery;
- and
- a next actual peak power associated with the battery.
26 more elements
Dependencies are inferred from the claim text.