JP2014126406A - Control device for electronic apparatus and control program for electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a control device that makes it possible to perform the process of calculating a remaining quantity of a battery restricted in power consumption.SOLUTION: A PMIC 3 that acquires voltage from a battery and distributes it to each member of an electronic apparatus specifies the voltage acquired from the battery, and calculates a remaining quantity of the battery based on the specified voltage. The PMIC 3 has a voltage acquisition part 30 that acquires voltage from a battery, applies this voltage to a current voltage acquisition part 12, and calculates an amount of change in the remaining quantity of the battery. A remaining quantity calculating part 13 is provided for calculating a remaining quantity of the battery based on the calculated amount of change.

Description

  The present invention relates to a control device and a control program for calculating a remaining battery level of an electronic device equipped with a battery.

  There are various known methods for calculating the remaining battery level in an electronic device equipped with a battery. For example, Patent Document 1 describes a technique for calculating the remaining battery level by subtracting the value of the discharge current from the battery capacity.

  In addition, in order to accurately calculate the remaining battery level, the electronic device includes a measurement member that measures information for calculating the remaining battery level. As a measurement member, for example, it is known that an FGIC (gas gauge IC) that measures at least one of the output current of a battery and the potential difference of a sense resistor connected to the battery is mounted on an electronic device.

Japanese Patent Laid-Open No. 7-20215 (released on January 24, 1995)

  However, when acquiring information for calculating the remaining battery level using the measurement member as described above, battery power is consumed in the measurement process itself. In order to make the usable time of the electronic device longer, it is a problem to suppress power consumption in the measurement process.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to realize a control device and a control program capable of a battery remaining amount calculation process with reduced power consumption.

  In order to solve the above problems, a control device according to one embodiment of the present invention is a control device for an electronic device equipped with a battery, and obtains a voltage from the battery and distributes the voltage to each member of the electronic device. From the distribution unit, a voltage acquisition unit that acquires the voltage acquired by the power distribution unit from the battery, and a change amount of the battery remaining amount of the battery from the voltage acquired by the voltage acquisition unit, and the calculated change amount And a battery remaining amount calculating means for calculating the remaining battery level of the battery based on the above.

According to the one aspect of the present invention, the control device can calculate the remaining battery level based on the voltage acquired from the power distribution unit, and therefore can suppress the electric power related to the remaining battery level calculation process.

It is a block diagram which shows the principal part structure of the host which concerns on 1st embodiment of this invention. It is a figure which shows the structural member of the portable terminal which incorporates the said host. It is the figure which showed the flow of the process of the said host. It is the figure which showed the flow of the process of the host which concerns on 2nd embodiment of this invention.

(Concept of the present invention)
An object of the present invention is to suppress the power consumption of the process itself for measuring information necessary for calculating the remaining battery level. Here, the “information necessary for calculating the battery remaining amount” is, for example, a battery voltage or a battery output current.

  Conventionally, it is known to mount an FGIC on an electronic device. By calculating the remaining battery level using the output current or potential difference measured by the FGIC, the remaining battery level can be accurately calculated. However, power is also consumed for FGIC measurement processing. In other words, since the measurement processing is performed using the FGIC, there is a problem that the power consumption of the electronic device increases and the usable time of the electronic device decreases.

  On the other hand, conventionally, a member called PMIC (Power Management IC) that acquires voltage from a battery and distributes it to each member of an electronic device is known. An electronic device can distribute an appropriate voltage to each member by mounting the PMIC.

  The inventors of the present invention have conceived that the voltage acquired from the battery is specified by the PMIC and the remaining battery level is calculated based on the specified voltage.

  When the battery remaining amount is calculated using the voltage measured by the PMIC, the voltage can be measured without activating a measurement member such as FGIC, so that the power related to the battery remaining amount calculating process can be suppressed. .

  However, the remaining battery level calculated based on the voltage specified by the PMIC is less accurate than the remaining battery level calculated based on the output current or potential difference measured by the FGIC. Therefore, it is preferable to calculate the remaining battery level based on the voltage specified by the PMIC when priority is given to the power consumption suppression over the calculation accuracy of the remaining battery level.

  In this invention, in order to suppress the power consumption of an electronic device, the technique which specifies a voltage using PMIC and calculates a battery residual amount based on the specified voltage is disclosed.

Embodiment 1
When the power consumption of the electronic device is low, the rate of decrease in the remaining battery level is considered to be gradual. Therefore, in this case, it is preferable to prioritize suppression of power consumption rather than accurately calculating the remaining battery level. Specifically, for example, when the electronic device is in a sleep state (a sleep state or a standby state), it is preferable to suppress power consumption related to the battery remaining amount calculation process.

  The control device according to the first embodiment of the present invention calculates the remaining battery level based on the voltage specified by the PMIC when the power consumption of the electronic device is low. Hereinafter, a state in which power consumption is low, such as when the electronic device is in a sleep state as described above, will be referred to as a “low power consumption state”.

  Hereinafter, a first embodiment of the present invention will be described in detail with reference to FIGS.

(Main components of mobile terminal)
First, components of the mobile terminal 100 (electronic device) according to the present embodiment will be described with reference to FIG. However, the control device of the present invention is not limited to a portable terminal, and can be applied to any electronic device equipped with a battery and a PMIC.

  Note that portions not directly related to the present embodiment are omitted in FIG. 2 from the viewpoint of ensuring the simplicity of the description. However, the mobile terminal 100 may include the omitted configuration in accordance with the actual situation.

  FIG. 2 is a diagram illustrating constituent members of the mobile terminal 100. As illustrated, the mobile terminal 100 includes a battery 5, a sense resistor 6, an FGIC 2 (measurement unit), a PMIC 3 (power distribution unit), a host 1 (control device), and a storage unit 4.

  Battery 5, sense resistor 6, FGIC 2, and PMIC 3 are connected by conductors as illustrated. The host 1, the FGIC 2, the PMIC 3, and the storage unit 4 each perform data communication.

  The battery 5 is a power device that generates power, and is a power source for operating the mobile terminal 100. The battery 5 may be a secondary battery or a primary battery, and the type thereof is not particularly limited.

  The sense resistor 6 is a resistor as an electric circuit component, and is for measuring a current flowing through the battery 5.

  The FGIC 2 measures at least one of the output current of the battery 5 and the potential difference of the sense resistor 6. Hereinafter, information indicating at least one of the output current and the potential difference measured by the FGIC 2 is described as “battery related information”. When requested by the host 1 for battery-related information, the FGIC 2 measures the battery-related information. The measured battery related information is transmitted to a current voltage acquisition unit 12 described later. The FGIC 2 may have its own timer inside.

  The PMIC 3 acquires voltage from the battery 5 and distributes the voltage to each component of the mobile terminal 100. The PMIC 3 specifies a voltage acquired by the own device. Hereinafter, the voltage specified by the PMIC 3 is described as “distributed voltage”.

  More specifically, the PMIC 3 includes a voltage acquisition unit 30. When receiving the request for the distribution voltage from the host 1, the voltage acquisition unit 30 specifies the distribution voltage and transmits it to the current voltage acquisition unit 12 described later.

  The host 1 controls the mobile terminal 100 in an integrated manner. For example, the host 1 is realized by a CPU (central processing unit) or the like, and the processing control of the portable terminal 100 is performed by the CPU as the host 1 reading a program stored in the ROM or the like into the RAM or the like and executing it. Realized. Details of the configuration and functions of the host 1 will be described later.

  The memory | storage part 4 memorize | stores the distribution voltage which the below-mentioned current voltage acquisition part 12 acquired. The storage unit 4 also stores the remaining battery level calculated by a remaining level calculation unit 13 described later. The latest distribution voltage and the remaining battery level are stored in the storage unit.

(Detailed configuration of host 1)
Next, the host 1 will be described in detail with reference to FIG. FIG. 1 is a block diagram showing a main configuration of the host 1 according to the first embodiment of the present invention. The host 1 includes an FGIC control unit 11, a current voltage acquisition unit 12 (voltage acquisition unit, battery-related information acquisition unit), a remaining amount calculation unit 13 (battery remaining amount calculation unit), and a determination unit 14.

  The FGIC control unit 11 switches between starting and stopping of the FGIC 2. The FGIC control unit 11 switches between starting and stopping the FGIC 2 based on an instruction from the determination unit 14 described later and firing of a predetermined timer.

  Here, the “predetermined timer” refers to a timer that is linked to processing of various functions of the mobile terminal 100. When the FGIC 2 has a built-in timer, the FGIC 2 timer may be used as a “predetermined timer”. In that case, when the timer of the FGIC 2 is fired, the FGIC 2 notifies the fire of the timer to the FGIC control unit 11. The FGIC control unit 11 that has received the notification controls the FGIC based on the notification and the determination result of the determination unit 14.

  The current / voltage acquisition unit 12 acquires battery related information from the FGIC 2 in accordance with an instruction from the determination unit 14. The current / voltage acquisition unit 12 acquires a distribution voltage from the PMIC 3 in accordance with an instruction from the determination unit 14.

  The current / voltage acquisition unit 12 transmits the acquired distribution voltage and battery-related information to the remaining amount calculation unit 13 and the determination unit 14. Furthermore, the current / voltage acquisition unit 12 stores the distribution voltage in the storage unit 4.

  The remaining amount calculation unit 13 calculates the remaining battery level of the mobile terminal 100. The remaining amount calculation unit 13 stores the calculated battery remaining amount in the storage unit 4.

  When receiving the distribution voltage from the current / voltage acquisition unit 12, the remaining amount calculation unit 13 calculates the remaining battery level based on the distribution voltage. More specifically, the remaining amount calculation unit 13 first calculates the amount of change in the remaining battery level based on the distribution voltage. Next, the remaining amount calculation unit 13 reads the battery remaining amount calculated immediately before from the storage unit 4. Subsequently, the remaining amount calculation unit 13 calculates the current remaining battery level by subtracting the amount of change in the remaining battery level from the read remaining battery level. Further, when the battery remaining information is received from the current / voltage acquisition unit 12, the remaining capacity calculating unit 13 calculates the remaining battery based on the battery related information.

  The remaining amount calculation unit 13 may calculate the remaining amount of the battery in consideration of various conditions (such as temperature and the number of charge / discharge cycles) of the battery 5 and the portable terminal 100.

  The determination unit 14 determines the magnitude relationship between the output current acquired by the current / voltage acquisition unit 12 and the quiescent current value. The determination unit 14 calculates the amount of change between the battery voltage acquired by the current / voltage acquisition unit 12 and the battery voltage stored in the storage unit 4. Furthermore, the determination unit 14 determines the magnitude relationship between the change amount and the pause change amount value. Hereinafter, the amount of change between the battery voltage acquired by the current / voltage acquisition unit 12 and the battery voltage stored in the storage unit 4 is simply referred to as “voltage change amount”.

  Here, the “pause current value” is a predetermined output current threshold value, and the “pause change amount value” is a predetermined voltage change threshold value. The quiescent current value and the quiescent change amount value are threshold values for determining whether the current / voltage acquisition unit 12 acquires the output current from the FGIC 2 or the distribution voltage from the PMIC 3.

  As described above, when the mobile terminal 100 is in the low power consumption state, it is desirable that the host 1 does not activate the FGIC 2 and acquires the distribution voltage using the PMIC 3. Therefore, the “pause current value” and the “pause change value” determined by the determination unit 14 are desirably threshold values for determining whether or not the mobile terminal 100 is in the low power consumption state.

  When the output current is equal to or less than the quiescent current value, the determination unit 14 instructs the current voltage acquisition unit 12 to acquire the distribution voltage from the PMIC 3. On the other hand, when the output current is larger than the quiescent current value, the determination unit 14 instructs the current / voltage acquisition unit 12 to acquire the output current from the FGIC 2, and activates the FGIC 2 to the FGIC control unit 11. Instruct.

  In addition, when the calculated voltage change amount is equal to or greater than the pause change amount value, the determination unit 14 instructs the current voltage acquisition unit 12 to acquire the output current from the FGIC 2, and sets the FGIC 2 to the FGIC control unit 11. Instruct to start. On the other hand, when the calculated voltage change amount is smaller than the pause change amount value, the determination unit 14 instructs the current voltage acquisition unit 12 to acquire the distribution voltage from the PMIC 3.

  Note that when the voltage change amount is calculated by the determination unit 14, if the distribution voltage is not recorded in the storage unit 4 (when the remaining battery level is not calculated based on the distribution voltage immediately before), the voltage change amount May be without value.

(Process flow)
As described above, the determination result of the determination unit 14 determines whether the current / voltage acquisition unit 12 acquires the output current from the FGIC 2 or the distribution voltage from the PMIC 3. Further, the remaining battery level calculation processing of the remaining amount calculation unit 13 also changes depending on whether the current voltage acquisition unit 12 has acquired the output current or the distribution voltage. Hereinafter, switching of the battery remaining amount calculation process based on the determination result of the determination unit 14 will be described.

  FIG. 3 is a diagram showing a processing flow of the host 1. FIG. 3 shows a control flow in which the host 1 switches the method for calculating the remaining battery level depending on whether or not the mobile terminal 100 is in a low power consumption state. It is assumed that the portable terminal 100 is not in a low power consumption state at the beginning of the process.

  In FIG. 3, the current / voltage acquisition unit 12 acquires the output current of the battery 5 as the battery-related information from the FGIC 2. However, the current / voltage acquisition unit 12 may acquire the potential difference of the sense resistor 6 from the FGIC 2 and perform the determination process of FIG.

  First, when the current / voltage acquisition unit 12 acquires the output current from the FGIC 2, the current / voltage acquisition unit 12 transmits the output current to the determination unit 14. The determination unit 14 determines whether or not the received output current is equal to or less than the quiescent current value (S100).

<When the output current is less than the quiescent current value>
When the output current is equal to or less than the quiescent current value (YES in S100), the determination unit 14 instructs the current voltage acquisition unit 12 to acquire the distribution voltage from the PMIC 3.

  When the current / voltage acquisition unit 12 receives an instruction from the determination unit 14 and a predetermined timer is fired (YES in S102), the current / voltage acquisition unit 12 requests the distribution voltage from the voltage acquisition unit 30 of the PMIC 3 (S104) and distributes the voltage from the voltage acquisition unit 30. A voltage is acquired (S106). The acquired distribution voltage is transmitted to the remaining amount calculation unit 13 and the determination unit 14. In addition, the distribution voltage is stored in the storage unit 4.

  Next, the remaining amount calculation unit 13 calculates the amount of change in the remaining amount of the battery from the distribution voltage received from the current / voltage acquisition unit 12, and subtracts it from the remaining battery amount calculated immediately before. Is calculated (S108).

  Subsequently, the determination unit 14 calculates a voltage change amount (S110). Further, the determination unit 14 determines whether or not the voltage change amount is equal to or greater than the pause change amount value (S112).

  If the previously acquired distribution voltage is not recorded in the storage unit 4, the voltage change amount may have no value.

When the voltage change amount is equal to or greater than the pause change amount (YES in S112), the determination unit 14 instructs the FGIC control unit 11 to start the FGIC 2 and also outputs the output current from the FGIC 2 to the current voltage acquisition unit 12. Instruct to get. The subsequent processing is the same as the processing in the case of NO in S100 described later. When the voltage change amount is smaller than the pause change amount (NO in S112), the determination unit 14 instructs the current voltage acquisition unit 12 to acquire the distribution voltage from the PMIC 3. Thereafter, each unit of the host 1 repeats the processes of S102 to S110.
<When the output current is greater than the quiescent current value>
On the other hand, when the output current is larger than the quiescent current value in S100 (NO in S100), the determination unit 14 instructs the FGIC control unit 11 to start the FGIC2, and also instructs the current / voltage acquisition unit 12 to use the FGIC2 To get the output current.

  The FGIC control unit 11 activates the FGIC 2 when receiving a command from the determination unit 14 and fires a predetermined timer (YES in S120) (S122). When the FGIC 2 is activated, the current / voltage acquisition unit 12 requests an output current from the FGIC 2 (S124), and acquires the output current from the FGIC 2 (S126). The acquired output current is transmitted to the remaining amount calculation unit 13 and the determination unit 14.

  Next, the remaining amount calculation unit 13 calculates the remaining battery level based on the output current received from the current / voltage acquisition unit 12 (S128). When the remaining battery level calculation unit 13 finishes calculating the remaining battery level, the FGIC control unit 11 stops the FGIC 2 (S130). Thereafter, the processing of the output current acquired in S126 is performed again from the determination in S100.

[Embodiment 2]
In the first embodiment of the present invention, when the power consumption of the electronic device is low, the remaining battery level is calculated based on the voltage specified by the PMIC.

  On the other hand, the power consumption of the mobile terminal 100 may temporarily increase, for example, when the mobile terminal 100 activates a high-load application. In this case, the host according to the present invention may calculate the remaining battery level based on the voltage specified by the PMIC in order to prevent further increase in power consumption in the calculation process of the remaining battery level. The control device according to the second embodiment of the present invention calculates the remaining battery level based on the voltage specified by the PMIC when the power consumption of the electronic device is large. Hereinafter, a state in which the mobile terminal 100 has a high load (high power consumption) as described above is simply referred to as a “high load state”.

  The host 1 according to the second embodiment of the present invention differs from the host 1 according to the first embodiment in the determination process of the determination unit 14.

  In the second embodiment, the determination unit 14 determines the magnitude relationship between the output current acquired by the current / voltage acquisition unit 12 and the high load current value. The determination unit 14 also calculates a voltage change amount. Furthermore, the determination unit 14 determines the magnitude relationship between the voltage change amount and the high load change amount value.

  Here, the “high additional current value” is a predetermined output current threshold, and the “high additional change value” is a predetermined voltage change threshold. The high load current value and the high load change amount value are threshold values for determining whether the current / voltage acquisition unit 12 acquires the output current from the FGIC 2 or the distribution voltage from the PMIC 3.

  As described above, when the mobile terminal 100 is in a high load state, the host 1 desirably calculates the remaining battery level using the PMIC 3 without starting the FGIC 2. Therefore, the “high additional current value” and the “high load change value” determined by the determination unit 14 are preferably threshold values for determining whether or not the mobile terminal 100 is in a high load state.

  When the output current is greater than or equal to the high load current value, the determination unit 14 instructs the current voltage acquisition unit 12 to acquire the distribution voltage from the PMIC 3. On the other hand, when the output current is smaller than the high load current value, the determination unit 14 instructs the current / voltage acquisition unit 12 to acquire the output current from the FGIC 2 and activates the FGIC 2 to the FGIC control unit 11. To instruct.

  Further, when the calculated voltage change amount is equal to or less than the high load change amount value, the determination unit 14 instructs the current voltage acquisition unit 12 to acquire the output current from the FGIC 2 and also instructs the FGIC control unit 11 to execute the FGIC 2 Instruct to start. On the other hand, when the calculated voltage change amount is larger than the high load change amount value, the determination unit 14 instructs the current voltage acquisition unit 12 to acquire the distribution voltage from the PMIC 3.

  FIG. 4 is a diagram showing a processing flow of the host 1 according to the second embodiment of the present invention.

  For convenience of explanation, description of steps that perform the same processing as that described in the above embodiment is omitted.

(Process flow)
First, the determination unit 14 determines whether or not the output current received from the current / voltage acquisition unit 12 is equal to or higher than the high load current value (S200). When the output current is equal to or higher than the high load current value (YES in S200), the determination unit 14 instructs the current voltage acquisition unit 12 to acquire the distribution voltage from the PMIC 3. The subsequent processes of S202 to S210 are the same as the processes of S102 to S110 of FIG.

  Next, the determination unit 14 determines whether the voltage change amount is equal to or less than the high load change amount value (S212). If the previously acquired distribution voltage is not recorded in the storage unit 4, the voltage change amount may have no value as in FIG.

  When the voltage change amount is equal to or less than the high load change amount value (YES in S212), the determination unit 14 instructs the FGIC control unit 11 to start the FGIC 2, and also instructs the current voltage acquisition unit 12 from the FGIC 2. Instructs to obtain output current. When the voltage change amount is larger than the high load change amount value (NO in S212), the determination unit 14 instructs the current voltage acquisition unit 12 to acquire the battery voltage from the PMIC 3.

  On the other hand, in S200, when the output current is smaller than the high load current value (NO in S200), the determination unit 14 instructs the FGIC control unit 11 to start the FGIC 2 and Instructs the FGIC 2 to acquire the output current. The subsequent processing of S222 to S230 is the same as the processing of S122 to S130 of FIG.

  With the above configuration and processing, the host 1 according to the second embodiment of the present invention acquires the distribution voltage using the PMIC 3 when the power consumption of the mobile terminal 100 is high, and the remaining battery level based on the distribution voltage Can be calculated.

[Embodiment 3]
The determination unit of the host according to the present invention determines the magnitude relationship between the amount of change in the remaining battery level and a predetermined threshold, and determines the state of the mobile terminal (whether it is in a low power consumption state and whether it is in a high load state). ) May be determined. Here, the amount of change in the remaining battery level indicates the amount of change between the remaining battery level calculated by the remaining level calculating unit 13 and the remaining battery level calculated immediately before being stored in the storage unit 4.

  In this case, the quiescent current value, the quiescent change amount value, the high load current value, and the high load change amount value are all threshold values for the change amount of the remaining battery level. Specifically, in S100 and S112 of FIG. 3 and S200 and S212 of FIG. 4, the determination unit 14 determines the magnitude relationship between the amount of change in the remaining battery level and each threshold value.

[Example of software implementation]
The control blocks (particularly, the FGIC control unit 11, the remaining amount calculation unit 13, and the determination unit 14) of the host 1 may be realized by a logic circuit (hardware) formed in an integrated circuit (IC chip) or the like. It may be realized by software using a CPU (Central Processing Unit).

  In the latter case, the host 1 includes a CPU that executes instructions of a program that is software that realizes each function, a ROM (Read Only Memory) or a storage in which the program and various data are recorded so as to be readable by the computer (or CPU). An apparatus (these are referred to as “recording media”), a RAM (Random Access Memory) for expanding the program, and the like are provided. And the objective of this invention is achieved when a computer (or CPU) reads the said program from the said recording medium and runs it. As the recording medium, a “non-temporary tangible medium” such as a tape, a disk, a card, a semiconductor memory, a programmable logic circuit, or the like can be used. The program may be supplied to the computer via an arbitrary transmission medium (such as a communication network or a broadcast wave) that can transmit the program. The present invention can also be realized in the form of a data signal embedded in a carrier wave in which the program is embodied by electronic transmission.

[Summary]
The control device (host 1) according to the first aspect of the present invention is a control device for an electronic device (mobile terminal 100) in which a battery (battery 5) is mounted, and obtains a voltage from the battery to each member of the electronic device. From the power distribution unit (PMIC 3) that distributes the voltage, the voltage acquisition unit (current voltage acquisition unit 12) that acquires the voltage (distributed voltage) acquired by the power distribution unit from the battery, and the voltage acquired by the voltage acquisition unit Battery remaining amount calculating means (remaining amount calculating unit 13) for calculating the amount of change in the battery remaining amount of the battery and calculating the battery remaining amount of the battery based on the calculated amount of change.

  According to said structure, the control apparatus can calculate a battery remaining charge based on the voltage acquired from the electric power distribution part. Therefore, it is possible to suppress the power related to the battery remaining amount calculation process.

  The control device according to aspect 2 of the present invention is the control device according to aspect 1, wherein the control unit (FGIC2) measures at least one of the output current of the battery and the potential difference of the sense resistor (sense resistor 6) connected to the battery. The battery-related information acquisition unit (current / voltage acquisition unit 12) that acquires battery-related information indicating at least one of the output current and the potential difference is further included, and the battery remaining amount calculation unit is acquired by the battery-related information acquisition unit. Based on the battery-related information or calculating the amount of change in the battery remaining amount of the battery from the voltage acquired by the voltage acquisition means, and calculating the battery remaining amount based on the calculated amount of change, When the output current or potential difference indicated by the battery-related information acquired by the battery-related information acquisition unit is a predetermined value (resting current value) or less, the battery remaining amount calculation unit is Serial calculates the amount of change in the battery remaining amount of voltage the battery from the acquisition unit voltage obtained, based on the calculated change amount may calculate the battery remaining capacity.

  According to the above configuration, when the output current or the potential difference indicated by the battery related information is equal to or less than the predetermined value, the control device can acquire the voltage from the power distribution unit and calculate the remaining battery level based on the voltage. .

  Here, “when the output current or potential difference indicated by the battery-related information is equal to or less than a predetermined value” indicates a case where the power consumption of the electronic device is low (low power consumption state).

  That is, when the power consumption of the electronic device is low, the control device can suppress the power related to the battery remaining amount calculation process by calculating the battery remaining amount based on the voltage acquired from the power distribution unit. .

  When the voltage change amount (voltage change amount) acquired by the voltage acquisition unit is equal to or greater than a predetermined value (pause change amount value) in the above-described aspect 2, the control device according to aspect 3 of the present invention is The calculating means may calculate the remaining battery level based on the battery related information acquired by the battery related information acquiring means.

  According to said structure, the control apparatus can acquire battery related information from a measurement part, and can calculate a battery remaining charge based on this battery related information, when the variation | change_quantity of a voltage is more than predetermined value.

  Here, “when the amount of change in voltage is greater than or equal to a predetermined value” indicates a case where the power consumption state is not reached.

  That is, when not in the low power consumption state, the control device can accurately calculate the remaining battery level by calculating the remaining battery level based on the battery-related information acquired from the measurement unit.

  The control device according to aspect 4 of the present invention is the control device according to aspect 1, wherein the control unit (FGIC2) measures at least one of the output current of the battery and the potential difference of the sense resistor (sense resistor 6) connected to the battery. The battery-related information acquisition unit (current / voltage acquisition unit 12) that acquires battery-related information indicating at least one of the output current and the potential difference is further included, and the battery remaining amount calculation unit is acquired by the battery-related information acquisition unit. Based on the battery-related information or calculating the amount of change in the battery remaining amount of the battery from the voltage acquired by the voltage acquisition means, and calculating the battery remaining amount based on the calculated amount of change, When the output current or potential difference indicated by the battery-related information acquired by the battery-related information acquisition means is greater than or equal to a predetermined value (high load current value), the battery remaining amount calculation means Calculating a change amount of the battery remaining amount of the battery from the voltage which the voltage acquiring means acquires, based on the calculated amount of change, may calculate the battery remaining capacity.

  According to the above configuration, when the output current or the potential difference indicated by the battery related information is equal to or greater than the predetermined value, the control device can acquire the voltage from the power distribution unit and calculate the remaining battery level based on the voltage. .

  Here, “when the output current or potential difference indicated by the battery-related information is greater than or equal to a predetermined value” indicates that the power consumption of the electronic device is large and a high load is applied to the electronic device (high load state).

  That is, the control device suppresses the power related to the battery remaining amount calculation process by calculating the remaining battery amount based on the voltage acquired from the power distribution unit when the electronic device is heavily loaded. Can do.

  In the control device according to aspect 5 of the present invention, in the above aspect 4, when the voltage change amount (voltage change amount) acquired by the voltage acquisition means is less than or equal to a predetermined value (high load change amount value), The amount calculation unit may calculate the remaining battery level based on the battery related information acquired by the battery related information acquisition unit.

  According to said structure, the control apparatus can acquire battery related information from a measurement part, and can calculate a battery remaining charge based on this battery related information, when the variation | change_quantity of a voltage is below a predetermined value.

  Here, “when the amount of change in voltage is equal to or less than a predetermined value” indicates a case where the load is not high.

  That is, the control device can accurately calculate the remaining battery level by calculating the remaining battery level based on the battery-related information acquired from the measurement unit when the load is not high.

  The control device according to each aspect of the present invention may be realized by a computer. In this case, the control device is realized by the computer by causing the computer to operate as each unit included in the control device. A control program and a computer-readable recording medium on which the control program is recorded also fall within the scope of the present invention.

  The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention. Furthermore, a new technical feature can be formed by combining the technical means disclosed in each embodiment.

  INDUSTRIAL APPLICABILITY The present invention can be used for a control device for an electronic device equipped with a battery and a control program for the electronic device.

1 Host (control device)
2 FGIC (measurement unit)
3 PMIC (Power Distribution Unit)
12 Current / voltage acquisition unit (voltage acquisition means, battery-related information acquisition means)
13 Remaining amount calculating unit (battery remaining amount calculating means)
100 Mobile terminal (electronic equipment)

Claims (6)

A control device for an electronic device equipped with a battery,
From the power distribution unit that acquires voltage from the battery and distributes the voltage to each member of the electronic device, voltage acquisition means for acquiring the voltage acquired by the power distribution unit from the battery;
Battery residual quantity calculating means for calculating a change amount of the battery remaining amount of the battery from the voltage acquired by the voltage acquisition means, and calculating a battery residual amount of the battery based on the calculated change amount. Control device. Battery-related information acquisition means for acquiring battery-related information indicating at least one of the output current and the potential difference from a measurement unit that measures at least one of the output current of the battery and the potential difference of a sense resistor connected to the battery; Prepared,
The battery remaining amount calculating means calculates the amount of change in the battery remaining amount of the battery based on the battery related information acquired by the battery related information acquiring means or from the voltage acquired by the voltage acquiring means. Based on the amount of change, the remaining battery level of the battery is calculated.
When the output current or potential difference indicated by the battery-related information acquired by the battery-related information acquisition unit is equal to or less than a predetermined value, the battery remaining amount calculation unit calculates the remaining battery level of the battery from the voltage acquired by the voltage acquisition unit. The control device according to claim 1, wherein a change amount is calculated, and a battery remaining amount of the battery is calculated based on the calculated change amount.   When the change amount of the voltage acquired by the voltage acquisition unit is a predetermined value or more, the battery remaining amount calculation unit calculates the battery remaining amount of the battery based on the battery related information acquired by the battery related information acquisition unit. The control device according to claim 2, wherein the control device calculates. Battery-related information acquisition means for acquiring battery-related information indicating at least one of the output current and the potential difference from a measurement unit that measures at least one of the output current of the battery and the potential difference of a sense resistor connected to the battery; Prepared,
The battery remaining amount calculating means calculates the amount of change in the battery remaining amount of the battery based on the battery related information acquired by the battery related information acquiring means or from the voltage acquired by the voltage acquiring means. Based on the amount of change, the remaining battery level of the battery is calculated.
When the output current or potential difference indicated by the battery-related information acquired by the battery-related information acquisition unit is greater than or equal to a predetermined value, the battery remaining amount calculation unit calculates the battery remaining amount of the battery from the voltage acquired by the voltage acquisition unit. The control device according to claim 1, wherein a change amount is calculated, and a battery remaining amount of the battery is calculated based on the calculated change amount.   When the change amount of the voltage acquired by the voltage acquisition unit is equal to or less than a predetermined value, the battery remaining amount calculation unit calculates the battery remaining amount of the battery based on the battery related information acquired by the battery related information acquisition unit. The control device according to claim 4, wherein the control device calculates.   A control program for causing a computer to function as the control device according to any one of claims 1 to 5, wherein the control program causes the computer to function as each of the means.

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