Reported state-of-charge scaling
AssigneeFairchild Semiconductor Corporation
InventorJames MEACHAM
Life of this patent
Estimating the term…
Abstract
In a general aspect, a method can include providing an indication that the electronic device has changed from a battery charging state to a battery discharging state and measuring an initial measured state-of-charge (MSOC) value of a battery of the electronic device. In the event the initial MSOC value is above a threshold value, the method can further include determining a compensation value based on the initial MSOC value and the threshold value, determining an initial reported state of charge (RSOC) value by scaling the initial MSOC value using the compensation value and reporting the initial RSOC value using the electronic device.
Claims20
A method comprising:
- determining, by an electronic device, that the electronic device has changed from a battery charging state to a battery discharging state;
- measuring, by the electronic device, an initial measured state-of-charge (MSOC) value of a battery of the electronic device;
- and
- in the event the initial MSOC value is above a threshold value:
- determining a compensation value based on the initial MSOC value and the threshold value;
- determining an initial reported state of charge (RSOC) value by scaling the initial MSOC value using the compensation value;
- and
- reporting the initial RSOC value using the electronic device.
A method comprising:
- determining, by an electronic device, that the electronic device has changed from a battery discharging state to a battery charging state;
- measuring, by the electronic device, an initial measured state-of-charge (MSOC) value of a battery of the electronic device;
- determining whether a previously determined reported state of charge compensation value (RSOC_CV) of the electronic device is greater than zero;
- and
- in the event the previously determined RSOC_CV is greater than zero:
- determining an initial reported state of charge (RSOC) value by scaling the initial MSOC value using the previously determined RSOC_CV;
- and
- reporting the initial RSOC value using the electronic device.
An electronic device comprising:
- a battery;
- a charging circuit;
- a battery fuel gauge operatively coupled with the battery and the charging circuit;
- at least one processor;
- and
- at least one non-transitory storage medium having instructions stored thereon, the instructions, when executed by the at least one processor, result in:
- the battery fuel gauge receiving an indication that the electronic device has changed from a battery charging state to a battery discharging state;
- measuring, by the battery fuel gauge, an initial measured state-of-charge (MSOC) value of the battery;
- and
- in the event the initial MSOC value is above a threshold value, the instructions, when executed by the at least one processor, cause the battery fuel gauge to:
- determine a compensation value based on the initial MSOC value and the threshold value;
- determine an initial reported state of charge (RSOC) value by scaling the initial MSOC value using the compensation value;
- and
- report the initial RSOC value on a display of the electronic device.
An electronic device comprising:
- a battery;
- a charging circuit;
- a battery fuel gauge operatively coupled with the battery and the charging circuit;
- at least one processor;
- and
- at least one non-transitory storage medium having instructions stored thereon, the instructions, when executed by the at least one processor, result in:
- the battery fuel gauge receiving an indication that the electronic device has changed from a battery discharging state to a battery charging state;
- measuring, by the battery fuel gauge, an initial measured state-of-charge (MSOC) value of a battery of the electronic device;
- determining whether a previously determined reported state of charge compensation value (RSOC_CV) of the electronic device is greater than zero;
- and
- in the event the previously determined RSOC_CV is greater than zero, the instructions, when executed by the at least one processor, cause the battery fuel gauge to:
- determine an initial reported state of charge (RSOC) value by scaling the initial MSOC value using the previously determined RSOC_CV;
- and
- report the initial RSOC value using the electronic device.
Dependencies are inferred from the claim text.