US 2024/0258805 A1 · Safe Battery Charging During High Ambient Temperatures

Abstract

The present document describes techniques for safe battery charging during high ambient temperatures. These techniques extend device runtime during peak use periods when ambient temperature is high by increasing the possibility for battery charging during high ambient temperature conditions. In an example, a device, during high ambient temperatures, checks future ambient temperatures over a network to identify if the minimum future ambient temperature over a block of time within the next N number of days is predicted to be sufficiently low that, when combined with device-performance throttling, is estimated to reduce the temperature of the battery to below the maximum charge temperature to enable the battery to be safely charged. The device can also use the future ambient temperatures to budget current battery usage by implementing and/or adjusting device-performance throttling.

Claims21

Dependent claims

A method performed by an electronic device, the method comprising:

determining that a battery temperature of a battery of the electronic device has exceeded a first temperature threshold;
in response to the battery temperature exceeding the first temperature threshold, determining a state-of-charge of the battery;
responsive to a determination that the state-of-charge of the battery is below a first state-of-charge threshold, obtaining local-weather-forecast data from a weather source over a network based on a geographic location of the electronic device;
estimating future battery temperatures for each of a plurality of future time periods based on the local-weather-forecast data combined with battery-temperature data associated with a plurality of device-performance throttling modes for the electronic device;
and
identifying whether one or more future time periods of the plurality of future time periods exists within a next N number of days in which the estimated future battery temperature is below a second temperature threshold to enable the battery to be charged.

3 more elements

An electronic device comprising:

a battery configured to power one or more functions;
a processor;
and
a memory for storing computer-readable instructions that, when executed by the processor, cause one or more modules including:
a battery-manager module configured to:
determine that a battery temperature of a battery of the electronic device has exceeded a first temperature threshold;
and
in response to the battery temperature exceeding the first temperature threshold, determine a state-of-charge of the battery;
a charge-time predictor configured to:
responsive to a determination that the state-of-charge of the battery is below a first state-of-charge threshold, obtain local-weather-forecast data from a weather source over a network based on a geographic location of the electronic device;
and
estimate future battery temperatures for each of a plurality of future time periods based on the local-weather-forecast data combined with battery-temperature data associated with a plurality of device-performance throttling modes for the electronic device;
and
identify whether one or more future time periods of the plurality of future time periods exists within a next N number of days in which the estimated future battery temperature is below a second temperature threshold to enable the battery to be charged.

11 more elements

Dependencies are inferred from the claim text.

Safe Battery Charging During High Ambient Temperatures

Life of this patent

Safe Battery Charging During High Ambient Temperatures

Life of this patent

Abstract

Claims21