Method and mobile terminal for correcting power of mobile terminal

Patent metadata

Field	Value
Publication number	US-9778674-B2
Application number	US-201314426285-A
Country	US
Kind code	B2
Filing date	Jun 21, 2013
Priority date	Sep 21, 2012
Publication date	Oct 3, 2017
Grant date	Oct 3, 2017

Abstract

A method and mobile terminal for correcting the power of a mobile terminal is provided, including reading the register of a coulometer chip for acquiring a first power of a battery; matching the first power with a preset power level, each of power levels corresponding to a preset service logic; correcting the first power by a preset service logic matched with the first power to form and display a second power. In this way, it is only necessary to compensate the actual power according to a certain criterion to acquire a second power after the acquisition of the actual power, without need of adding additional devices or changing hardware arrangement in a hardware system, thereby enabling a user to use battery power as much as possible, and reducing unnecessary charging operations.

First claim

What is claimed is:

1. A method for correcting power of a mobile terminal which employs a battery as an energy supply, comprising:
reading a register of a coulometer chip for acquiring a first power of the battery;
matching the first power with at least one preset power level, respectively, each of the at least one power level corresponding to a preset service logic;
correcting the first power by a preset service logic matched with the first power to form a second power and displaying the second power;
wherein the forming the second power comprises: reading the register of the coulometer chip for acquiring a first voltage of the battery when the first power is at a lowest level of the at least one power level; filtering the first voltage to form a second voltage; and correcting the first power using the second voltage to form the second power;
wherein the reading the register of the coulometer chip for acquiring the first voltage of the battery when the first power is at a lowest level of the at least one power level comprises: reading the first voltage of the battery consecutively, sorting values of various first voltages, removing a largest value and a smallest value, averaging remaining values, and taking a mean value as a value of the second voltage.

2. The method according to claim 1 , wherein the displaying the second power comprises:
displaying the second power on an interface of the mobile terminal.

3. The method according to claim 1 , wherein the preset service logic matched with the first power comprises service logic 1 to 4, wherein:
service logic 1 represents that: if the first power 1 (C1)≧100%, the first power being at power level 1, then the second power (C2)=100%;
service logic 2 represents that: if 100%>the C1≧30%, the first power being at power level 2, then the C2=(50+((C1*100−30)*5)/7)%;
service logic 3 represents that: if 30%>the C1≧7%, the first power being at power level 3, then the C2=(14+((C1*100−7)*35)/22)%; and
service logic 4 represents that: if 7%>the C1≧2%, the first power being at power level 4, then the C2=((C1*100*13)/6)%.

4. The method according to claim 3 , wherein the preset service logic matched with the first power also comprises service logic 5, which represents that:
when the first power is lower than or equal to 2%, and is at the lowest level of the at least one power level,
if a second voltage is higher than a voltage threshold, then the C2=1%,
if a second voltage is not higher than the voltage threshold, then the C2=0%, and an operation system is informed to start and execute a shutdown process.

5. A mobile terminal comprising a battery, and also comprising:
a memory storing programming instructions; and
a processor configured to execute the stored programming instructions to perform steps comprising:
reading a register of a coulometer chip for acquiring a first power of the battery;
matching the first power with at least one preset power level, respectively, each of the at least one power level corresponding to a preset service logic;
correcting the first power by a preset service logic matched with the first power to form a second power and displaying the second power;
wherein the forming the second power comprises: reading the register of the coulometer chip for acquiring a first voltage of the battery when the first power is at a lowest level of the at least one power level; filtering the first voltage to form a second voltage; and correcting the first power using the second voltage to form the second power;
wherein the reading the register of the coulometer chip for acquiring the first voltage of the battery when the first power is at a lowest level of the at least one power level comprises: reading the first voltage of the battery consecutively, sorting values of various first voltages, removing a largest value and a smallest value, averaging remaining values, and taking a mean value as a value of the second voltage.

6. The mobile terminal according to claim 5 , wherein the preset service logic matched with the first power comprises service logic 1 to 4, wherein:
service logic 1 represents that: if the first power 1 (C1)≧100%, the first power being at power level 1, then the second power (C2)=100%;
service logic 2 represents that: if 100%>the C1≧30%, the first power being at power level 2, then the C2=(50+((C1*100−30)*5)/7)%;
service logic 3 represents that: if 30%>the C1≧7%, the first power being at power level 3, then the C2=(14+((C1*100−7)*35)/22)%; and
service logic 4 represents that: if 7%>the C1≧2%, the first power being at power level 4, then the C2=((C1*100*13)/6)%.

7. The mobile terminal according to claim 6 , wherein the preset service logic matched with the first power also comprises service logic 5, which represents that:
when the first power is lower than or equal to 2%, and when the first power is at the lowest level,
if a second voltage is higher than a voltage threshold, then the C2=1%,
if a second voltage is not higher than the threshold, then the C2=0% and an operation system is informed to start and execute a shutdown process.

Assignees

• Zte Corp

Inventors

• Cai Xiaoguang

Classifications

• H02J7/42

  with electronic devices having internal batteries, e.g. mobile phones · CPC title

• H02J7/94

  in response to battery current · CPC title

• H02J7/92

  with prioritisation of loads or sources · CPC title

• H02J7/82

  Control of state of charge [SOC] · CPC title

• G05F5/00 Primary

  Systems for regulating electric variables by detecting deviations in the electric input to the system and thereby controlling a device within the system to obtain a regulated output · CPC title