US 9,003,213 B2 · Battery discharging method

Abstract

A battery discharging method for a computer system is disclosed. The battery discharging method is to detect a first detection value relative to a first status of a battery of the computer system and a second detection value relative to a second status of the battery, then to determine a clock adjustment parameter according to the first detection value and the second detection value, and at last to adjust an operation clock rate of a processor of the computer system according to the clock adjustment parameter. Therein, the statuses of the battery can be discharging temperature, discharging current, discharging voltage, residual capacity, or other statuses of the battery. Therefore, the invention can adjust the operation clock rate of the processor under the consideration to the statuses of the battery, so as to extend the discharging period of the battery and utilize the stored energy in the battery efficiently.

Claims30

Dependent claims

A battery discharging method for a computer system, the computer system comprising a processor and a battery for powering the processor, the battery discharging method comprising the following steps:

(a) detecting a first detection value relative to a first status of the battery and a second detection value relative to a second status of the battery;
(b-1) determining a first adjustment value according to the first detection value;
(b-2) determining a second adjustment value according to the second detection value;
(b-3) adding the first adjustment value and the second adjustment value to be a third adjustment value;
(b-4) determining a clock adjustment parameter according to the third adjustment value;
and
(c) adjusting an operation clock rate of the processor according to the clock adjustment parameter.

4 more elements

A battery discharging method for a computer system, the computer system comprising a processor, a battery for powering the processor, an embedded controller, and a basic input/output system, the battery discharging method comprising the following steps:

(a) detecting a first detection value relative to a first status of the battery and a second detection value relative to a second status of the battery;
(b) determining a clock adjustment parameter according to the first detection value and the second detection value, the clock adjustment parameter being an underclocking level;
and
(c-1) the embedded controller storing the clock adjustment parameter;
(c-2) the embedded controller triggering an underclocking event signal to the basic input/output system;
(c-3) the basic input/output system reading the clock adjustment parameter;
and
(c-4) the basic input/output system judging whether an operation clock rate of the processor is equal to the clock adjustment parameter, and if the result of the judging is false, the basic input/output system adjusting the operation clock rate of the processor to the underclocking level according to the clock adjustment parameter.

5 more elements

A battery discharging method for a computer system, the computer system comprising a processor and a battery for powering the processor, the battery discharging method comprising the following steps:

setting an activation variable;
(a) when a residual capacity of the battery is less than a predetermined value, no external power is inputted into the computer system, and the activation variable is true, detecting a first detection value relative to a first status of the battery and a second detection value relative to a second status of the battery;
(b) determining a clock adjustment parameter according to the first detection value and the second detection value;
and
(c) adjusting an operation clock rate of the processor according to the clock adjustment parameter.

2 more elements

Dependencies are inferred from the claim text.

Battery discharging method

Life of this patent

Battery discharging method

Life of this patent

Abstract

Claims30