US 2022/0091655 A1Published application

System and method of estimating time remaining for an information handling system to operate on electrical power provided by one or more batteries

AssigneeDell Products L.P.

InventorsRichard Christopher Thompson, Nikhil Manohar Vichare, Michael Raymond Nechay, Tyler Ryan Cox, Thanh Thien Tran

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Abstract

In one or more embodiments, one or more systems, one or more methods, and/or one or more processes may determine a historical discharge rate (dh) from multiple discharge rates a battery of an information handling system (IHS) while the IHS operates on electrical power provided by the battery; receive a current discharge rate (dc) of the battery; determine a full charge capacity correction factor value (Cfcc) associated with the battery; determine a weighting factor (α); determine a difference between a full charge capacity value (FCC) and Cfcc; determine α·dh; determine (1−α)·dc; determine a sum of dh·α and dc·α; determine a quotient value of FCC−Cfcc and α·dh+(1−α)·dc; scale the quotient value based at least on a relative state of charge of the battery to determine an estimated time remaining for the IHS to operate on the electrical power provided by the battery; and display the estimated time remaining.

Claims20

Dependent claims

An information handling system, comprising:

at least one processor;
and
a memory medium, coupled to the at least one processor, that stores instructions executable by the at least one processor;
an embedded controller coupled to the at least one processor;
and
a battery configured to provide electrical power to one or more components of the information handling system;
wherein the embedded controller is configured to:
determine a plurality of discharge rates of the battery while the information handling system operates on the electrical power provided by the battery;
and
determine a historical discharge rate from the plurality of discharge rates;
wherein the instructions cause the information handling system to:
receive a current discharge rate of the battery from the embedded controller;
receive the historical discharge rate from the embedded controller;
determine a full charge capacity correction factor value associated with the battery;
determine a weighting factor associated with the historical discharge rate and the current discharge rate;
determine a difference between a full charge capacity value associated with the battery and the full charge capacity correction factor value;
modify the historical discharge rate based at least on the weighting factor to determine a modified historical discharge rate;
modify the current discharge rate based at least on the weighting factor to determine a modified current discharge rate;
determine a sum of the modified historical discharge rate and the modified current discharge rate;
determine a first quotient value of the difference between the full charge capacity value and the full charge capacity correction factor value and the sum of the modified historical discharge rate and the modified current discharge rate;
scale the first quotient value based at least on a relative state of charge of the battery to determine an estimated time remaining for the information handling system to operate on the electrical power provided by the battery;
and
display, via a display, the estimated time remaining for the information handling system to operate on the electrical power provided by the battery.

20 more elements

A method, comprising:

determining, by an embedded controller of an information handling system, a plurality of discharge rates of a battery of the information handling system while the information handling system operates on electrical power provided by the battery;
determining, by the embedded controller, a historical discharge rate from the plurality of discharge rates;
receiving a current discharge rate of the battery from the embedded controller;
receiving the historical discharge rate from the embedded controller;
determining a full charge capacity correction factor value associated with the battery;
determining a weighting factor associated with the historical discharge rate and the current discharge rate;
determining a difference between a full charge capacity value associated with the battery and the full charge capacity correction factor value;
modifying the historical discharge rate based at least on the weighting factor to determine a modified historical discharge rate;
modifying the current discharge rate based at least on the weighting factor to determine a modified current discharge rate;
determining a sum of the modified historical discharge rate and the modified current discharge rate;
determining a first quotient value of the difference between the full charge capacity value and the full charge capacity correction factor value and the sum of the modified historical discharge rate and the modified current discharge rate;
scaling the first quotient value based at least on a relative state of charge of the battery to determine an estimated time remaining for the information handling system to operate on the electrical power provided by the battery;
and
displaying, via a display, the estimated time remaining for the information handling system to operate on the electrical power provided by the battery.

11 more elements

A computer-readable non-transitory memory medium that includes instructions that, when executed by at least one processor of an information handling system, cause the information handling system to:

receive a historical discharge rate from an embedded controller of the information handling system;
receive a current discharge rate of the battery from the embedded controller;
determine a full charge capacity correction factor value associated with the battery;
determine a weighting factor associated with the historical discharge rate and the current discharge rate;
determine a difference between a full charge capacity value associated with the battery and the full charge capacity correction factor value;
modify the historical discharge rate based at least on the weighting factor to determine a modified historical discharge rate;
modify the current discharge rate based at least on the weighting factor to determine a modified current discharge rate;
determine a sum of the modified historical discharge rate and the modified current discharge rate;
determine a first quotient value of the difference between the full charge capacity value and the full charge capacity correction factor value and the sum of the modified historical discharge rate and the modified current discharge rate;
scale the first quotient value based at least on a relative state of charge of the battery to determine an estimated time remaining for the information handling system to operate on the electrical power provided by the battery;
and
display, via a display, the estimated time remaining for the information handling system to operate on the electrical power provided by the battery.

9 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/028,273Filed 22 Sep 2020
Published: 24 Mar 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

G06F 1/26
Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00: power supply means, e.g. regulation thereof
G06F 1/3212
Monitoring of events, devices or parameters that trigger a change in power modality: monitoring battery levels, e.g. power saving mode being…
G01R 31/367
Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of…
G01R 31/371
Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of…