Dynamic power source selection, charging, and discharging

Patent metadata

Field	Value
Publication number	US-11656666-B2
Application number	US-201916440923-A
Country	US
Kind code	B2
Filing date	Jun 13, 2019
Priority date	Nov 16, 2016
Publication date	May 23, 2023
Grant date	May 23, 2023

Abstract

A computing device has an energy storage device system with multiple energy storage devices. Various different criteria are used to determine which one or more of the multiple energy storage devices to charge or discharge at any given time to provide power to the computing device. The criteria can include characteristics of the energy storage devices as well as hardware and/or physical characteristics of the computing device, characteristics of the energy storage devices and/or the computing device that change while the computing device operates, and predicted behavior or usage of the computing device. These criteria are evaluated during operation of the computing device, and the appropriate energy storage device(s) from which to draw power or to charge at any given time based on these criteria are determined.

First claim

The invention claimed is:

1. A computing device comprising:
processing hardware;
a memory storage device;
a battery connector comprising at least one of: a wired battery connector or a wireless battery connector;
an alternating current (AC) power source connector comprising at least one of: a wired AC power source connector or a wireless AC power source connector; and
a battery connectable to the battery connector;
wherein the memory storage device stores computer-executable instructions, which, when executed by the processing hardware, cause the processing hardware to:
obtain usage data comprising:
at least one of: a first prior connection action directed to the battery connector or a second prior connection action directed to the AC power source connector, wherein a connection action comprises at least one of: a connection or a disconnection; and
location history of the computing device;

generate, based on the usage data, a prediction of a future connection action based on a location of the computing device and the location history of the computing device, wherein the future connection action comprises at least one of a disconnection between the battery connector and the battery or a connection between the AC power source connector and an AC power source; and
select a first portion of the first battery to provide more power to the computing device than a second portion of the battery, the selecting being based on the prediction of the future connection action and ages of the first portion of the battery and the second portion of the battery.

2. A computing device according to claim 1 , wherein the usage data includes energy storage device information indicating types and/or energy capacities of batteries previously connected to the battery connector, and wherein the prediction is based on the energy storage device information.

3. A computing device according to claim 1 , wherein the prediction of the future connection action is that the battery will be disconnected from the battery connector.

4. A computing device according to claim 1 , wherein the selecting is further based on a first amount of charge in the first portion of the battery and a second amount of charge in the second portion of the battery.

5. A computing device according to claim 1 , wherein the prediction of the future connection action is the connection between the AC power source and the AC power source connector.

6. A computing device according to claim 1 , wherein the selecting is further based on duty cycling.

7. A computing device according to claim 1 , wherein the usage data includes at least one of: characteristics of another battery previously connected to the battery connector or characteristics of the AC power source connected to the AC power source connector, wherein the prediction of the future connection action is further based on at least one of: the characteristics of the other battery or the characteristics of the AC power source.

8. A computing device according to claim 7 , wherein the characteristics of the other battery include at least one of: capacity, age, or a type of battery, and wherein the characteristics of the AC power source include at least one of: capacity, age, or a type of AC power source.

9. A computing device according to claim 1 , wherein the first portion of the battery is one or more battery cells of the battery and the second portion of the battery is one or more other battery cells of the battery.

10. A computing device according to claim 1 , wherein the second portion of the battery provides no power to the computing device.

11. A computing device according to claim 1 , wherein the selecting is further based on static criteria of the computing device, the static criteria remaining unchanged during operation of the computing device.

12. A computing device according to claim 1 , wherein the selecting is further based on dynamic system criteria of the computing device, the dynamic system criteria changing during operation of the computing device.

13. A computing device according to claim 12 , wherein the dynamic system criteria comprises temperatures within one or more thermal zones of the computing device.

14. A method of controlling battery power provided to a computing device, the method comprising:
obtaining usage data comprising:
at least one of: a first prior connection action directed to a battery connector of the computing device or a second prior connection action directed to an alternating current (AC) power source connector of the computing device, wherein a connection action comprises at least one of: a connection or a disconnection; and
location history of the computing device;

generating, based on the usage data, a prediction of a future connection action, based on a location of the computing device and the location history of the computing device, wherein the future connection action comprises at least one of a disconnection between the battery connector and a battery or a connection between the AC power source connector and an AC power source; and
selecting a first portion of the battery to provide more power to the computing device than a second portion of the battery, the selecting being based on the prediction of the future connection action and ages of the first portion of the battery and the second portion of the battery.

15. A method according to claim 14 , wherein the selecting is further based on dynamic system criteria of the computing device, the dynamic system criteria changing during operation of the computing device.

16. A method according to claim 14 , wherein the selecting is further based on a first amount of charge in the first portion of the battery and a second amount of charge in the second portion of the battery.

17. One or more computer-readable storage media storing computer-executable instructions, which, when executed by a computing device, cause the computing device to:
obtain, from the one or more memory storage devices, usage data comprising
at least one of: a first prior connection action directed to a battery connector or a second prior connection action directed to an alternating current (AC) power source connector, wherein a connection action comprises at least one of: a connection or a disconnection; and
location history of the computing device;

generate, based on the usage data, a prediction of a future connection action based on a location of the computing device and the location history of the computing device, wherein the future connection action comprises at least one of a disconnection between the battery connector and a battery or a connection between the AC power source connector and an AC power source; and
select a first portion of the battery to provide more power to the computing device than a second portion of the battery, the selecting being based on the prediction of the future connection action and ages of the first portion of the battery and the second portion of the battery.

18. One or more computer-readable storage media according to claim 17 , wherein the selecting is further based on temperatures within one or more thermal zones of the computing device.

Assignees

• Microsoft Technology Licensing Llc

Inventors

• Jahagirdar Aniruddha Jayant
• Chandra Ranveer
• Badam Anirudh
• Schwartz Jr James Anthony
• Maisuria Paresh
• Holle Matthew
• Soliman M Nashaat
• Naguthanawala Murtuza S
• Ansel Tapan
• Daken Aacer Hatem

Classifications

• H02J7/855

  with circuits adapted for supplying loads from the battery · CPC title

• H02J7/50

  acting upon multiple batteries simultaneously or sequentially · CPC title

• G06F1/3287

  by switching off individual functional units in the computer system · CPC title

• G06F1/3296

  by lowering the supply or operating voltage · CPC title

• G06F1/263 Primary

  Arrangements for using multiple switchable power supplies, e.g. battery and AC (G06F1/30 takes precedence) · CPC title