WO2010066154A1

WO2010066154A1 - Charge time determining method, device and terminal device

Info

Publication number: WO2010066154A1
Application number: PCT/CN2009/074814
Authority: WO
Inventors: 涂鸿雁
Original assignee: 华为终端有限公司
Priority date: 2008-12-10
Filing date: 2009-11-05
Publication date: 2010-06-17
Also published as: CN101436690B; CN101436690A

Abstract

A charge time determining method includes detecting a current charge current value, a currently used current-consumed value and a current battery voltage and obtaining a current battery capacity according to the current battery voltage, and determining the residual time required for completing a battery charging operation according to the current charge current value, the currently used current-consumed value, the current battery capacity, a total battery capacity, and ratios of charge capacities in different battery charge phases to the total battery capacity. A charge time determining device and a terminal device are provided.

Description

The present invention claims to be submitted to the Chinese Patent Office on December 10, 2008, and the application number is 200810182662. X, the invention name is "a method, device and terminal device for determining charging time" The priority of the Chinese Patent Application, the entire contents of which is incorporated herein by reference. Technical field

The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, and a terminal device for determining a charging time. Background technique

Terminal devices such as mobile phones are usually powered by batteries due to the requirements of portability and mobility. After the battery power is consumed for a certain period of time, the user needs to charge the battery to meet the power supply requirements.

The prior art obtains the current battery voltage by uniformly sampling the voltage of the battery, and obtains an LED (Light Emitting Diode) by mapping calculation according to the mapping relationship between the battery voltage and the battery power in the charging curve, and the battery power and the number of charging cells. ) or the number of charging cells displayed on the LCD (Liquid Crystal Display).

The prior art only roughly informs the user of the amount of battery power that has been charged. For example, how many battery levels are already filled on the LCD: The terminal equipment manufacturer divides the battery power into 5 parts, and the user estimates the battery by observing the number of cells displayed by the charging interface (powered off charging) or charging grid (powered charging). The charged battery power, based on the user's own guess, estimates the time it takes to fully charge the battery. In fact, although the battery power is divided into 5 parts, each representative's power is not equal, and the charging current during charging is not constant, so the user's estimated charging time is uncertain. Summary of the invention Embodiments of the present invention provide a method, apparatus, and terminal device for determining a charging time to determine a time required to charge a battery.

To achieve the above objective, an embodiment of the present invention provides a method for determining a charging time, including:

Detecting a current charging current value, a current applied current consumption current value, and a current battery voltage, and obtaining a current battery power according to the current battery voltage;

Determining, according to the current charging current value, the current applied power consumption current value, the current battery power and the total battery power, and the ratio of the charged power at different stages of battery charging to the total battery power The remaining time required for the battery to complete charging.

In another aspect, the embodiment of the present invention further provides a charging time determining apparatus, including: a charging current detecting module, configured to detect a current charging current value;

The power consumption current detecting module is configured to detect a current consumption current value of the current application;

a battery voltage detecting module, configured to detect a current battery voltage;

a battery power obtaining module, configured to obtain a current battery power according to a current battery voltage detected by the battery voltage detecting module;

a charging time determining module, configured to use a current charging current value detected by the charging current detecting module, a current application current consumption current value detected by the power consumption current detecting module, and a current current obtained by the battery power obtaining module The battery power and the total battery power, as well as the ratio of the charged power at different stages of battery charging to the total battery power, are determined as the remaining time required for the battery to complete charging.

In a further aspect, the embodiment of the invention further provides a terminal device, comprising the above-mentioned determining device for charging time.

Compared with the prior art, the embodiment of the present invention has the following advantages: The embodiment of the present invention is based on the current charging current value, the current application current consumption current value, the current battery power and the total battery power, and the charging of different stages of battery charging. The ratio of the battery to the total battery capacity is determined as the time remaining for the battery to complete charging. This makes it possible to determine the remaining time required to complete the charging of the battery. DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention, Those skilled in the art can also obtain other drawings based on these drawings without paying any creative work.

1 is a method for determining a charging time according to an embodiment of the present invention;

Figure 2 is a schematic diagram showing the relationship between voltage and current during charging;

Figure 3 is a schematic diagram of the battery discharge curve;

FIG. 4 is a structural diagram of an apparatus for determining a charging time according to an embodiment of the present invention. detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention. Embodiments of the present invention provide a method for determining a charging time, which can determine and prompt the user for the remaining time required for the battery to complete charging.

As shown in FIG. 1 , a method for determining a charging time according to an embodiment of the present invention includes: Step S101: detecting a current charging current value, a current applied current consumption current value, and a current battery voltage, and according to a current battery The voltage gets the current battery level.

The current battery power according to the current battery voltage may be: According to the current battery voltage, query the mapping relationship between the battery voltage and the battery power to obtain the current battery power. The mapping relationship between battery voltage and battery power can be as shown in Table 1.

Table 1

Sampling time battery voltage (mV) battery power (mAh) 10: 48: 24. 0 4. 1901 900. 3

10: 48: 54. 0 4. 1784 900

11: 08: 54. 0 4. 1606 890

11: 29: 04. 0 4. 1482 880

... ... ...

For example: When the detected battery voltage is 4. 1784mV, look up Table 1 and get the current battery level of 900mAh.

After obtaining the current battery power, the current battery power can also be prompted. When prompted, the current battery power value can be prompted, or the current battery power and the total battery power ratio can be indicated, or both. prompt. However, the embodiment of the present invention is not limited thereto, and other prompting manners may be used to prompt the user of the current battery power, for example: prompting the user with the current battery power in the form of an icon.

Step S102, determining, according to the current charging current value, the current application current consumption current value, the current battery power and the total battery power, and the ratio of the charging power at different stages of the battery charging to the total battery power, determining that the battery is required to be charged. The remaining time.

After determining the remaining time required for the battery to complete charging, the remaining time may also be presented to the user. When prompted, the user may be prompted with a specific remaining time value, and the user may be prompted to complete the charging of the battery in the form of an icon. The remaining time required. However, the embodiment of the present invention is not limited thereto, and other prompting manners may be used to prompt the user for the remaining time.

When the battery is charged in the first charging phase, the current charging current value is X, the current applied current consumption value is AC, the current battery power is C, the total battery power is TC, and the charging power in the first charging phase is The ratio of the total battery power is Ml, the ratio of the charging power in the second charging phase to the total battery power is M2, and the ratio of the charging power in the third charging phase to the total battery power is M3, and the remaining time required for the battery to be charged is T,

Can be determined _T — TCxMl-C _| TCxM2 _| TCxM3

― X- AC Y'-AC Z'-AC (i) where Y' is the preset value of the charging current for the second charging phase, which is the preset value of the charging current for the third charging phase.

When the battery is charging in the second charging phase and the current charging current value is Y, the remaining time required to complete the charging of the battery is:

_T _TCxM2-C _| TCXM3

― Y-AC + Z'-AC (2) where is the preset value of the charging current for the third charging phase. When the battery is charging in the third charging phase and the current charging current value is z, the remaining time required to determine that the battery is fully charged is:

T ₌ TC M3 ₍₃₎

Z-AC

The first charging phase may be a turbulent phase, the second charging phase may be a constant current phase, and the third charging phase may be a constant voltage phase.

As shown in Figure 2, the relationship between voltage and current during charging is as follows:

(1) When the battery voltage is <3.2, the charging is in the turbulent phase, that is, in the first charging phase, the charging current is 30 mA;

(2) When the battery voltage of 3.2V is <4.2V, the charging is in the constant current phase, that is, the second charging phase, the charging current is 750mA;

(3) When the 4.2V battery voltage is <4.225V, the charging is in the constant voltage phase, that is, the third charging phase, and the charging current is 100mA.

(4) When the battery voltage is 4.225V, the battery is full and charging stops.

A method for determining the remaining time of charging provided by the embodiment of the present invention will be described in detail below by taking a battery with a total battery power of 1050 mAh as an example.

Assume that the battery discharge curve of the above battery is as shown in Fig. 3. The charging power in the turbulent phase accounts for about 3% of the total battery power, that is, Ml = 3%; the charging current in the constant current phase accounts for about 95% of the total battery power, that is, M2 = 95%; The charging power in the constant voltage stage accounts for about 2% of the total battery power, that is, M3 = 2%.

When the battery is charging at a different charging stage, the remaining time required to determine that the battery is fully charged is:

(1) The battery voltage is 3.2V, that is, when the battery is charged in the first charging phase, the remaining time required to determine the battery completion charging can be:

TCx5%-C TCx95% TCx2%

+ ~: + · (4)

X- AC Y'-AC Z'-AC

(2) 3.2V battery voltage <4.2V, that is, when the battery is charged in the second charging stage, the remaining time required to determine the battery is completed can be:

TCx95%-C TCx2%

+ . (5)

Y-AC Z'-AC

(3) When the 4.2V battery voltage is <4.225V, that is, when the battery is charging in the third charging stage, it is determined that the remaining time required for the battery to complete charging may be:

TCx2%

(6)

Z-AC

In the formulas (4), (5) and (6), the meanings of the symbols are:

a) T: The remaining time required to complete the charging of the battery, in hours;

b) TC: total battery power, unit: mAh;

c) C: battery power, unit: mAh;

d) X: the detected charging current of the first charging phase, unit: mA;

e) Y: the detected charging current in the second charging phase, unit: mA;

f) Z: the detected charging current in the third charging phase, unit: mA;

g) AC: current consumption current of the application, unit: mA; i) Y' is the preset value of the charging current in the second charging phase;

j) The preset value of the charging current for the third charging phase. The method for determining the charging time is based on the current charging current value, the current applied current consumption current value, The ratio of the amount of electricity is determined as the time remaining for the battery to complete charging. Moreover, in the embodiment of the present invention, when determining the remaining time required for the battery to complete charging, the influence of the current application current consumption current on the remaining time required for completing the charging is considered, and the terminal device is different because the power consumption current values of different applications are different. When performing different applications, the remaining time required for the battery to complete charging is determined by the embodiment of the present invention.

As shown in FIG. 4, a structural diagram of a charging time determining apparatus according to an embodiment of the present invention includes: a charging current detecting module 41, configured to detect a current charging current value;

The power consumption current detecting module 42 is configured to detect a current consumption current value of the current application;

The battery voltage detecting module 43 is configured to detect the current battery voltage;

The battery power obtaining module 44 is configured to obtain a current battery power according to the current battery voltage detected by the battery voltage detecting module 43;

The charging time determining module 45 is configured to use the current charging current value detected by the charging current detecting module 41, the current applied current consumption current value detected by the power consumption current detecting module 42, and the current battery obtained by the battery power obtaining module 44. The amount of charge and total battery power, as well as the ratio of the charge level at the different stages of battery charge to the total battery charge, determines the time remaining for the battery to complete charging.

The battery power obtaining module 44 is specifically configured to query the mapping relationship between the battery voltage and the battery power according to the current battery voltage detected by the battery voltage detecting module 43 to obtain the current battery power.

The determining device for the charging time may further include:

The battery power prompting module 46 is configured to prompt the battery power obtaining module 44 to obtain the current battery power.

The determining device for the charging time may further include:

The charging time prompting module 47 is configured to prompt the charging time determining module 45 to determine the remaining time required for the battery to complete charging. The flow detecting module 42 detects the current consumption current value of the current application, the battery voltage detecting module 43 detects the current battery voltage, and the battery power obtaining module 44 obtains the current battery power according to the current battery voltage detected by the battery voltage detecting module 43. Specifically, the battery power obtaining module 44 queries the current battery voltage detected by the battery voltage detecting module 43 to query the mapping relationship between the battery voltage and the battery power to obtain the current battery power. The current battery power obtained by the battery power obtaining module 44 is prompted by the battery power prompting module 46. When prompted, the battery power prompt module 46 may prompt the specific value of the current battery power, or may indicate the current battery power to the total battery power ratio, or both. However, the embodiment of the present invention is not limited thereto, and the battery power prompting module 46 may also prompt the user for the current battery power by using other prompting manners, for example: prompting the user of the current battery power in the form of an icon.

Then, the charging time determination module 45 is based on the current charging current value detected by the charging current detecting module 41, the current applied power consumption current value detected by the power consumption current detecting module 42, and the current battery power obtained by the battery power obtaining module 44. And the total battery power, and the ratio of the charge level at the different stages of battery charging to the total battery power, determine the remaining time required for the battery to complete charging.

The charging time determination module 45 determines that the remaining time required to complete the charging of the battery is:

_T _ TCxMl - C _| TCxM2 _| TCxM3

― X - AC Y'-AC Z'-AC

Wherein, Y' is a preset value of the charging current in the second charging phase, and is a preset value of the charging current in the third charging phase.

When the battery is charged in the second charging phase and the current charging current value is Υ, the charging time determining module 45 determines that the remaining time required for the battery to complete charging is: _T _ TCxM2 - C _| TCxM3

― Y -AC Z'-AC

Wherein, the charging current is preset for the third charging phase. When the battery is charged in the third charging phase and the current charging current value is z, the charging time determination module 45 determines that the remaining time required to complete the charging of the battery is:

_T _ TCxM3

― Z -AC

After the charging time determination module 45 determines the remaining time required for the battery to complete charging, the charging time prompting module 47 prompts the user for the remaining time required by the charging time determination module 45 to complete the charging of the battery. At the prompt, the charging time prompting module 47 may prompt the user for a specific remaining time value, and may also prompt the user for the remaining time required for the battery to complete charging. However, the embodiment of the present invention is not limited thereto, and other prompting manners may be used to prompt the user for the remaining time.

The embodiment of the invention further provides a terminal device, which comprises the above-mentioned determining device for charging time. The terminal device can be a mobile phone, a laptop or a PDA (Personal Digital Assistant).

The charging time determining device and the terminal device provided by the embodiments of the present invention can determine the remaining time required for the battery to complete charging, and can prompt the current power of the battery and the remaining time required for charging the battery.

The above modules may be distributed in one device or distributed in multiple devices. The above modules can be combined into one module, or they can be split into multiple sub-modules.

Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented by hardware or by software plus a necessary general hardware platform. Based on such understanding, the technical solution of the present invention can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (can be a CD-ROM, a U disk, a mobile hard disk) And the like, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

A person skilled in the art can understand that the drawings are only a schematic diagram of a preferred embodiment, and the modules or processes in the drawings are not necessarily required to implement the invention.

Those skilled in the art can understand that the modules in the apparatus in the embodiments may be distributed in the apparatus of the embodiment according to the description of the embodiments, or may be correspondingly changed in one or more apparatuses different from the embodiment. The modules of the above embodiments may be combined into one module, or may be further divided into a plurality of sub-modules.

The serial numbers of the embodiments of the present invention are merely for the description, and do not represent the advantages and disadvantages of the embodiments.

The above disclosure is only a few specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be considered by those skilled in the art should fall within the protection scope of the present invention.

Claims

Claim

A method for determining a charging time, comprising:

2. The method according to claim 1, wherein the obtaining the current battery power according to the current battery voltage comprises:

And according to the current battery voltage, querying a mapping relationship between the battery voltage and the battery power to obtain the current battery power.

3. The method according to claim 1 or 2, wherein when the battery is charged in the first charging phase, the current charging current value is X, the current applied current consumption value is AC, and the current battery power is C. The total battery power is TC, the ratio of the charging power in the first charging phase to the total battery power is M1, the ratio of the charging power in the second charging phase to the total battery power is M2, and the charging power in the third charging phase. The ratio of the total battery power to the battery is M3, and the remaining time required for the battery to be charged is T.

Determining, according to the current charging current value, the current applied power consumption current value, the current battery power and the total battery power, and the ratio of the charged power at different stages of battery charging to the total battery power The remaining time required to complete the charging of the battery is specifically:

_T _ TCxMl - C _| TCxM2 _| TCxM3

― X - AC Y'-AC Z'-AC , where Y' is the preset value of the charging current for the second charging phase, which is the preset value of the charging current for the third charging phase.

4. The method according to claim 1 or 2, wherein when the battery is charged in the second charging phase, the current charging current value is Y, the current applied current consumption value is AC, the current battery The battery is C, the total battery power is TC, the ratio of the charging power in the second charging phase to the total battery power is M2, and the ratio of the charging power in the third charging phase to the total battery power is M3, which is the battery. When the remaining time required to complete charging is T,

_T _TCxM2-C _| TCXM3

― Y-AC Z'-AC,

Wherein, the charging current is preset for the third charging phase.

5. The method according to claim 1 or 2, wherein when the battery is charged in the third charging phase, the current charging current value is Z, the current applied current consumption value is AC, and the current battery power is C. The total battery power is TC, the ratio of the charging power in the second charging phase to the total battery power is M2, and the ratio of the charging power in the third charging phase to the total battery power is M3, and the battery is charged. When the remaining time required is T,

_T _TCxM3

― Z-AC.

6. A device for determining a charging time, comprising:

a charging current detecting module, configured to detect a current charging current value;

a charging time determining module, configured to: according to the current charging current value detected by the charging current detecting module, the current applied power consumption current value detected by the power consumption current detecting module, the power The current battery power and total battery power obtained by the pool power obtaining module, and the ratio of the charged power at different stages of battery charging to the total battery power, are determined as the remaining time required for the battery to complete charging.

The device according to claim 6, wherein the battery power obtaining module is configured to query a mapping relationship between a battery voltage and a battery power according to a current battery voltage detected by the battery voltage detecting module, and obtain The current battery level.

8. The apparatus according to claim 7, further comprising:

The battery power prompting module is configured to prompt the current battery power obtained by the battery power obtaining module.

9. The device of claim 6, further comprising:

And a charging time prompting module, configured to prompt the charging time determining module to determine a remaining time required for the battery to complete charging.

A terminal device, comprising: a charging time determining device according to any one of claims 6-9.