CN109473736A

CN109473736A - Resistor detection method, charge/discharge control method, device and the electronic equipment of battery

Info

Publication number: CN109473736A
Application number: CN201710807036.4A
Authority: CN
Inventors: 周继浩; 谭明生
Original assignee: Shanghai BYD Co Ltd
Current assignee: Shanghai BYD Co Ltd
Priority date: 2017-09-08
Filing date: 2017-09-08
Publication date: 2019-03-15
Anticipated expiration: 2037-09-08
Also published as: CN109473736B

Abstract

This disclosure relates to a kind of resistor detection method of battery, charge/discharge control method, device and electronic equipment, the resistor detection method of battery includes: when the resistance to battery detects, it is electrically operated to control the battery stopping charge and discharge, or electrically operated to carry out charge and discharge less than the current value of a threshold value；Obtain the resistance value of the identification resistance of the battery and/or the resistance value of thermistor.The disclosure through the above scheme, reduces the extra voltage that the impedance loop of common circuit generates, so that the resistance value of identification resistance and the resistance value of thermistor are more accurate, and then improves the accuracy rate of identification battery identity and temperature.

Description

Resistor detection method, charge/discharge control method, device and the electronic equipment of battery

Technical field

This disclosure relates to electronic technology field, and in particular, to a kind of resistor detection method of battery, charge and discharge control side Method, device and electronic equipment.

Background technique

With the development of communication, mobile phone has become a part indispensable in many people's daily lifes, in order to guarantee The safety of battery of mobile phone in use needs to detect whether battery is satisfactory electricity by battery detection circuit Pond.It in the related art, include identification (Identity, ID) resistance and temperature-sensitive (Negative in battery detection circuit Temperature Coefficient, NTC) resistance, wherein ID resistance is for identifying the identity information of battery, NTC Resistance is used to detect the temperature information of battery.Circuit and detection in battery detection circuit, due to detection ID resistance The circuit of NTC resistance has one section of common circuit, which has certain impedance loop, therefore, in the mistake of battery charging and discharging Cheng Zhong, charging current or discharge current can generate additional voltage liter or voltage drop on this section of common circuit, result in this way Additional voltage is increased in measure loop in charge and discharge process, so that the process of ID resistance and NTC resistance in detection In there is error, affect the detection accuracy of ID resistance and NTC resistance.

Summary of the invention

To overcome the problems in correlation technique, the disclosure provides resistor detection method, device and the electricity of a kind of battery Pond charge/discharge control method, device.

According to the first aspect of the embodiments of the present disclosure, a kind of resistor detection method of battery is provided, comprising:

When the resistance to battery detects, it is electrically operated to control the battery stopping charge and discharge, or less than a threshold value It is electrically operated that current value carries out charge and discharge；

Obtain the resistance value of the identification resistance of the battery and/or the resistance value of thermistor.

Optionally, after the resistance value of identification resistance and/or the resistance value of thermistor for obtaining the battery, The method also includes:

It is full in the resistance value that the resistance value of the identification resistance meets the first preset range and the thermistor When the second preset range of foot, the charge and discharge for restoring the battery is electrically operated；

Or

After the resistance value of identification resistance or the resistance value of thermistor for obtaining the battery, the method is also Include:

Meet in the resistance value that the resistance value of the identification resistance meets the first preset range or the thermistor When the second preset range, the charge and discharge for restoring the battery is electrically operated.

Optionally, in the resistance value of the identification resistance for obtaining the battery and/or the resistance value of thermistor Later, the method also includes:

The resistance of first preset range or the thermistor is unsatisfactory in the resistance value of the identification resistance When value is unsatisfactory for second preset range, it is electrically operated to control the battery stopping charge and discharge.

According to the second aspect of an embodiment of the present disclosure, a kind of battery charge-discharge control method is provided, comprising:

Electrically operated in the charge and discharge period control battery progress charge and discharge of unit period, the unit period includes the charge and discharge Electric period and detection period；

It is electrically operated to control the battery stopping charge and discharge for section in the detection, or is filled with the current value less than a threshold value Discharge operation, and obtain the resistance value of the identification resistance of the battery and/or the resistance value of thermistor；

According to the resistance value of the identification resistance, the identity of the battery is determined, and/or according to the thermistor Resistance value determine the temperature of the battery；

When the temperature that the identity of the battery is legal identity and/or the battery is normal temperature, in the detection After period, the charge and discharge for restoring the battery is electrically operated.

Optionally, the resistance value according to the identification resistance, determines the identity of the battery, and/or according to The resistance value of the thermistor determines the temperature of the battery, comprising:

When the resistance value of the identification resistance meets the first preset range, determine that the identity of the battery is legal Identity；And/or

When the resistance value of the thermistor meets the second preset range, determine that the temperature of the battery is positive room temperature Degree.

Optionally, the method also includes:

First preset range, or the electricity in the thermistor are unsatisfactory in the resistance value of the identification resistance When resistance value is unsatisfactory for second preset range, it is electrically operated to control the battery stopping charge and discharge.

Optionally, after the section in the detection, restore the battery charge and discharge it is electrically operated after, the method Further include:

It is electrically operated that the battery stopping charge and discharge being controlled within the detection period of next unit period, or to be less than the threshold value Current value to carry out charge and discharge electrically operated, and detect the resistance value of the thermistor；

According to the resistance value of the thermistor, the temperature of the battery is determined.

Optionally, in the detection section with less than the current value of a threshold value carry out charge and discharge it is electrically operated when, the acquisition institute The resistance value of identification resistance and/or the resistance value of thermistor for stating battery include:

According to charging and discharging currents and the first impedance loop corresponding with the identification resistance, determine that the identity is known The charge and discharge offset voltage value of other resistance；

According to the charge and discharge offset voltage value of the identification resistance, the resistance value of the identification resistance is determined； And/or

According to charging and discharging currents and second servo loop impedance corresponding with the thermistor, the thermistor is determined Charge and discharge offset voltage value；

According to the charge and discharge offset voltage value of the thermistor, the resistance value of the thermistor is determined.

According to the third aspect of an embodiment of the present disclosure, a kind of resistor detection method of battery is provided, comprising:

Obtain the voltage value of identification resistance and/or the voltage value of thermistor；

Obtain the offset voltage value of the identification resistance and/or the offset voltage value of the thermistor；

According to the voltage value of the identification resistance, the offset voltage value of the identification resistance determines the body The target voltage values of part identification resistance, and/or according to the thermistor, the offset voltage value of the thermistor determines institute State the target voltage values of thermistor；

According to the target voltage values of the identification resistance, the resistance value and/or root of the identification resistance are determined According to the target voltage values of the thermistor, the resistance value of the thermistor is determined.

Optionally, the compensation electricity of the offset voltage value for obtaining the identification resistance and/or the thermistor Pressure value, comprising:

According to charging and discharging currents and the first impedance loop corresponding with the identification resistance, obtains the identity and know The offset voltage value of other resistance；And/or

According to charging and discharging currents and second servo loop impedance corresponding with the thermistor, the thermistor is obtained Offset voltage value.

Optionally, in the target voltage values according to the identification resistance, the identification resistance is determined Resistance value, and/or according to the target voltage values of the thermistor, after the resistance value for determining the thermistor, the side Method further include:

The first preset range, or the resistance value in the thermistor are unsatisfactory in the resistance value of the identification resistance When being unsatisfactory for the second preset range, it is electrically operated to control the battery stopping charge and discharge；

When battery stopping charge and discharge is electrically operated, the resistance value and/or the temperature-sensitive of the identification resistance are obtained The resistance value of resistance.

Optionally, the voltage value of the voltage value for obtaining the identification resistance and the thermistor it Before, the method also includes:

It is electrically operated or electrically operated to carry out charge and discharge less than the current value of a threshold value to control battery stopping charge and discharge.

According to a fourth aspect of embodiments of the present disclosure, a kind of resistor detecting device of battery is provided, comprising:

Control module is configured as when the resistance to battery detects, and controlling the battery, to stop charge and discharge electrically operated, Or it is electrically operated to carry out charge and discharge less than the current value of a threshold value；

Processing module is configured as obtaining the resistance value of the identification resistance of the battery and/or the electricity of thermistor Resistance value.

According to a fifth aspect of the embodiments of the present disclosure, a kind of battery charging and discharging control device is provided, comprising:

Charge-discharge modules, be configured as unit period the charge and discharge period control battery carry out charge and discharge it is electrically operated, it is described Unit period includes the charge and discharge period and detection period；

It is electrically operated to be configured as the battery stopping charge and discharge of section control in the detection for first processing module, or with small It is electrically operated that charge and discharge is carried out in the current value of a threshold value, and obtains the resistance value and/or temperature-sensitive of the identification resistance of the battery The resistance value of resistance；

Second processing module is configured as determining the identity of the battery according to the resistance value of the identification resistance, And/or the temperature of the battery is determined according to the resistance value of the thermistor；

Third processing module, be configured as be in the temperature that the identity of the battery is legal identity and/or the battery When normal temperature, in the detection after section, the charge and discharge for restoring the battery is electrically operated.

According to a sixth aspect of an embodiment of the present disclosure, a kind of battery check device is provided, comprising:

First obtains module, is configured as obtaining the voltage value of identification resistance and/or the voltage value of thermistor；

Second obtains module, is configured as obtaining the offset voltage value of the identification resistance and/or temperature-sensitive electricity The offset voltage value of resistance；

First processing module is configured as the voltage value according to the identification resistance, the identification resistance Offset voltage value determines the target voltage values of the identification resistance, and/or according to the thermistor, the temperature-sensitive electricity The offset voltage value of resistance, determines the target voltage values of the thermistor；

Second processing module is configured as the target voltage values according to the identification resistance, determines that the identity is known The resistance value of other resistance, and/or according to the target voltage values of the thermistor, determine the resistance value of the thermistor.

According to the 7th of the embodiment of the present disclosure the aspect, a kind of electronic equipment is provided, comprising:

Processor；

Memory for storage processor executable instruction；

Wherein, the processor is configured to:

According to the eighth aspect of the embodiment of the present disclosure, a kind of electronic equipment is provided, comprising:

Processor；

Memory for storage processor executable instruction；

Wherein, the processor is configured to:

According to the 9th of the embodiment of the present disclosure the aspect, a kind of electronic equipment is provided, comprising:

Processor；

Memory for storage processor executable instruction；

Wherein, the processor is configured to:

According to the tenth of the embodiment of the present disclosure the aspect, a kind of computer readable storage medium is provided, calculating is stored thereon with Machine program instruction realizes the resistance detection side of battery provided by the disclosure first aspect when program instruction is executed by processor The step of method.

On the one hand according to the tenth of the embodiment of the present disclosure the, a kind of computer readable storage medium is provided, meter is stored thereon with Calculation machine program instruction realizes the control of battery charging and discharging provided by the disclosure second aspect when program instruction is executed by processor The step of method.

According to the 12nd of the embodiment of the present disclosure the aspect, a kind of computer readable storage medium is provided, meter is stored thereon with Calculation machine program instruction realizes the resistance detection of battery provided by the disclosure third aspect when program instruction is executed by processor The step of method.

In the disclosure, when the resistance to battery detects, it is electrically operated that control battery stops charge and discharge, or less than one The current value progress charge and discharge of threshold value is electrically operated, reduces the extra voltage that the impedance loop of common circuit generates, so that identity is known The resistance value of other resistance and the resistance value of thermistor are more accurate, and then improve the standard of identification battery identity and temperature True rate.

The disclosure is electrically operated by the detection period control battery stopping charge and discharge in unit period, or less than a threshold The current value progress charge and discharge of value is electrically operated, and the additional electric that the impedance loop of common circuit generates is reduced during detection resistance Pressure so that the resistance value of identification resistance and the resistance value of thermistor are more accurate, and then improves identification battery body The accuracy rate of part and temperature.In addition, carry out cycle detection by resistance to battery, can timing detection resistance situation, protect The safety of battery is demonstrate,proved.

In addition, by obtaining the offset voltage of identification resistance and/or the offset voltage of thermistor in the disclosure, The voltage of the voltage to identification resistance and/or thermistor compensates respectively, reduces the impedance loop of common circuit Influence of the bring extra voltage to testing result makes the resistance value of the identification resistance obtained and the resistance of thermistor It is more accurate to be worth, and then improves the accuracy rate of identification battery identity and temperature.

Other feature and advantage of the disclosure will the following detailed description will be given in the detailed implementation section.

Detailed description of the invention

Attached drawing is and to constitute part of specification for providing further understanding of the disclosure, with following tool Body embodiment is used to explain the disclosure together, but does not constitute the limitation to the disclosure.In the accompanying drawings:

Fig. 1 is the schematic diagram of battery protecting circuit shown according to an exemplary embodiment.

Fig. 2 is the battery inspection of constant voltage method detection ID resistance and NTC resistance shown according to an exemplary embodiment Slowdown monitoring circuit schematic diagram.

Fig. 3 is the battery inspection of constant current process detection ID resistance and NTC resistance shown according to an exemplary embodiment Slowdown monitoring circuit schematic diagram.

Fig. 4 is a kind of flow chart of the resistor detection method of battery shown according to an exemplary embodiment.

Fig. 5 is a kind of flow chart of battery charge-discharge control method shown according to an exemplary embodiment.

Fig. 6 is the method flow diagram shown according to an exemplary embodiment that cycle detection is carried out to NTC resistance.

Fig. 7 is a kind of flow chart of the resistor detection method of the battery shown according to another exemplary embodiment.

Fig. 8 is a kind of schematic diagram of the resistor detecting device of battery shown according to an exemplary embodiment.

Fig. 9 is a kind of schematic diagram of battery charging and discharging control device shown according to an exemplary embodiment.

Figure 10 is a kind of schematic diagram of the resistor detecting device of battery shown according to an exemplary embodiment.

Specific embodiment

Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment Described in embodiment do not represent all implementations consistent with this disclosure.On the contrary, they be only with it is such as appended The example of the consistent device and method of some aspects be described in detail in claims, the disclosure.

In embodiment of the disclosure, electronic equipment include for provide electric energy can charge and discharge battery (such as lithium electricity Pond).In use due to battery, it cannot be overcharged, over-discharge, overcurrent, short circuit and high temperature charge and discharge, generally use protection electricity Battery is protected on road.Referring to Fig. 1, the battery protecting circuit of one embodiment of the disclosure includes: identification resistance, temperature-sensitive Resistance, control module and switch module.

The anode of battery is connect with electrode input end mouth P+, and the cathode of battery is connected by switch module and negative input P- It connects；Switch module is connect with control module；One end of identification resistance is connect with one end of P- and thermistor respectively, identity The other end of identification resistance is connect with ID output end；One end of thermistor is connect with P-, and the other end is connect with NTC output end.

When battery is used for power electronic equipment, the load connection of the end P+ and the end P- and electronic equipment is realized to electronics The load supplying of equipment.Here load can be processor, camera, display screen etc..When charging the batteries, the end P+ and P- End is connect with the charging interface of electronic equipment, is realized and is charged to battery.

In one embodiment, Fig. 2 and Fig. 3 are please referred to, control module includes control chip IC, which includes Positive supply input terminal VDD, negative supply input terminal VSS, discharge prevention actuating station DO, charge protection actuating station CO, overcurrent detection Actuating station VM, switch module include concatenated two field-effect tube.

Wherein, positive supply input terminal VDD is connected by a resistance with P+, and negative supply input terminal VSS is connected with P-, and electric discharge is protected Shield actuating station DO is connect with a field-effect tube in switch module, another field in charge protection actuating station CO and switch module The connection of effect pipe, control chip IC are realized charge circuit and are put by controlling the on and off of the two field-effect tube respectively The conducting and disconnection of electrical circuit, the overcurrent detection actuating station VM for controlling chip IC are connected by a resistance with P-.

In embodiment of the disclosure, in battery use process, by the resistance value and temperature-sensitive that detect identification resistance The resistance value of resistance, can identity to battery and temperature detect.

Detecting identification resistance (ID resistance) and when thermistor (NTC resistance), can by two methods come into Row detection, one is constant voltage methods, and one is constant current process.As shown in Fig. 2, detecting ID electricity for constant voltage method The battery detection circuit schematic diagram of resistance and NTC resistance.The battery detection circuit passes through in ID output end and the end P- setting load electricity Hinder R₁And stabilized power source E, constitute the measure loop for detecting ID resistance.By in NTC output end and the setting load of the end P- Resistance R₂And stabilized power source E, constitute the measure loop for detecting NTC resistance.During executing resistance detection, lead to Cross detection load resistance R₁The voltage at both ends determines the voltage at ID resistance both ends, and passes through detection load resistance R₂Both ends Voltage determines the voltage at NTC resistance both ends.Due to having shared P- in the measure loop of ID resistance and the measure loop of NTC resistance To this section of common circuit of ID output end and P- to NTC output end, therefore when battery progress charge and discharge is electrically operated, this section is shared Circuit can generate additional voltage liter or voltage drop, lead to load resistance R in measure loop₁And R₂The voltage value at both ends occurs Variation, and then influence the voltage value for being added in ID resistance, NTC resistance both ends.It needs to subtract additional electricity in battery discharge procedure Pressure, in battery charging process add additional voltage, thus cause existing scheme in battery charge or discharge NTC resistance with And ID resistance detection inaccuracy.

For example, the resistance value of constant voltage source E, ID resistance is R_ID, the resistance value of NTC resistance is R_NTC, common circuit exists Impedance loop (i.e. the resistance of P- to ID output end) in ID measure loop is R_ID-P-, common circuit is in NTC measure loop Impedance loop (i.e. the resistance of P- to NTC output end) is R_NTC-P-, charging current when battery is in charged state is I_Charging, battery Discharge current when in discharge condition is I_{Electric discharge}。

Load resistance R when battery is in the uncharged state that also do not discharge, in ID resistance detection circuit₁The electricity at both ends Pressure are as follows:

When battery is in discharge condition, load resistance R₁The voltage at both ends are as follows:

When battery is in charged state, load resistance R₁The voltage at both ends are as follows:

Load resistance R when battery is in the uncharged state that also do not discharge, in NTC resistance detection circuit₂Both ends Voltage are as follows:

When battery is in discharge condition, load resistance R₂The voltage at both ends are as follows:

When battery is in charged state, load resistance R₂The voltage at both ends are as follows:

Taking E respectively is 0.4V, I_{Electric discharge}For 3A, R_NTC-P-For 0.02 Ω, R₁For 1K Ω, R₂For 1K Ω, R_ID-P-For 0.02 Ω, R_ID For 4.7K Ω, R_NTCFor 10K Ω, above formula is brought into, available:

Battery it is uncharged also do not discharge in the case where, load resistance R₁Voltage are as follows: V=0.0702V；

When battery is in discharge condition, load resistance R₁Voltage are as follows: V=0.0596V；

When battery is in charged state, load resistance R₁Voltage are as follows: V=0.0807V；

Error rate formula when according to electric discharge:

Discharge error rate=100% × (R when not discharging₁Detection voltage-electric discharge when R₁Detection voltage)/when not discharging R₁Detection voltage；

R when available electric discharge₁Voltage detection error be 15.1%；

Error rate formula when according to charging:

Charging error rate=100% × (R when uncharged₁Detection voltage-R when putting charging₁Detection voltage)/it is uncharged When R₁Detection voltage；

R when available charging₁Voltage detection error be 15%.

Likewise, battery it is uncharged also do not discharge in the case where, load resistance R₂Voltage are as follows: V=0.0364V；

When battery is in discharge condition, load resistance R₂Voltage are as follows: V=0.0309V；

When battery is in charged state, load resistance R₂Voltage are as follows: V=0.0418V；

R when electric discharge₂Voltage detection error be 15.1%；

R when charging₂Voltage detection error be 14.8%.

As shown in figure 3, detecting the battery detection circuit schematic diagram of ID resistance and NTC resistance for constant current process.The electricity Pond detection circuit is by being arranged constant current source I in ID output end and the end P-_S, constitute the measure loop for detecting ID resistance. By the way that constant current source I is arranged in NTC output end and the end P-_S, constitute the measure loop for detecting NTC resistance.Executing electricity During resistance detection, the voltage at ID resistance both ends and the voltage at NTC resistance both ends are detected.Since the detection in ID resistance is returned The measure loop of road and NTC resistance has shared this section of common circuit of P- to ID output end and P- to NTC output end, therefore When battery progress charge and discharge is electrically operated, this section of common circuit can generate additional voltage liter or voltage drop, cause to influence to be added in ID electricity It hinders, the voltage value at NTC resistance both ends.It needs to subtract additional voltage in battery discharge procedure, add in battery charging process Upper additional voltage, to cause existing scheme NTC resistance and ID resistance detection inaccuracy in battery charge or discharge.

For example, when battery is in the uncharged state that also do not discharge, the voltage at ID resistance both ends are as follows:

V=I_S×(R_ID+R_ID-P-)；

When battery is in discharge condition, the voltage at ID resistance both ends are as follows:

V=I_S×R_ID-I_{Electric discharge}×R_ID-P-；

When battery is in charged state, the voltage at ID resistance both ends are as follows:

V=I_S×R_ID+I_Charging×R_ID-P-；

When battery is in the uncharged state that also do not discharge, the voltage at NTC resistance both ends are as follows:

V=I_S×(R_NTC+R_NTC-P-)；

When battery is in discharge condition, the voltage at NTC resistance both ends are as follows:

V=I_S×R_NTC-I_{Electric discharge}×R_NTC-P-；

When battery is in charged state, the voltage at NTC resistance both ends are as follows:

V=I_S×R_NTC+I_Charging×R_NTC-P-；

I is taken respectively_SFor 0.04mA, I_{Electric discharge}For 3A, R_NTC-P-For 0.02 Ω, R₁For 1K Ω, R₂For 1K Ω, R_ID-P-For 0.02 Ω, R_IDFor 4.7K Ω, R_NTCFor 10K Ω, above formula is brought into, available:

Battery it is uncharged also do not discharge in the case where, the voltage of ID resistance are as follows: V=0.1880V；

When battery is in discharge condition, the voltage of ID resistance are as follows: V=0.128V；

When battery is in charged state, the voltage of ID resistance are as follows: V=0.24V.

When battery is in discharge condition, ID detection error rate are as follows: 31.9%

When battery is in charged state, ID detection error rate are as follows: 27.7%

Battery it is uncharged also do not discharge in the case where, the voltage of NTC resistance are as follows: V=0.400V；

When battery is in discharge condition, the voltage of NTC resistance are as follows: V=0.34V；

When battery is in charged state, the voltage of NTC resistance are as follows: V=0.46V.

When battery is in discharge condition, NTC detection error rate are as follows: 15%；

When battery is in charged state, NTC detection error rate are as follows: 15%.

It is analyzed according to above-mentioned calculating it is found that when battery is in charged state or discharge condition to ID resistance and NTC resistance When being detected, the error rate of detection is 14.8%~31.9%, and the error can increase with the increase of charging and discharging currents, Judgement of the electronic equipment to battery status is seriously affected.

In order to improve the detection accuracy to ID resistance and NTC resistance, the disclosure provides a kind of resistor detection method of battery, As shown in figure 4, this method comprises:

In step S41, when the resistance to battery detects, controlling the battery, to stop charge and discharge electrically operated, or with It is electrically operated that charge and discharge is carried out less than the current value of a threshold value；

In step S42, the resistance value of the identification resistance of the battery and/or the resistance value of thermistor are obtained.

In the disclosure, when the resistance to battery carries out resistance detection, in order to avoid charging and discharging currents are in omnibus circuit It is upper to generate additional voltage, take the charge and discharge for stopping battery electrically operated, or to carry out filling for battery less than the current value of a threshold value Discharge operation.For example, when the use of the electronic equipment of the battery being mobile phone, the charge-discharge modules of mobile phone are to the battery Charging operations are carried out, when needing the resistance to the battery to carry out resistance detection, the processor of mobile phone can be to charge and discharge mould Block sends a control instruction, and control charge-discharge modules stop charging, or are charged with low current.The threshold of low current charge and discharge Value can be set according to actual needs, and e.g., threshold value is the minimum current value that guarantee electronic equipment works normally or the threshold value is Current value when electronic equipment is standby etc., the application is without limitation.

The resistance of the battery is detected, identification resistance can be only detected, can also only detect thermistor, Identification resistance can also not only be detected but also detect thermistor.When only detecting identification resistance, identification electricity is obtained The resistance value of resistance, so that the identity information to battery is verified.When only detecting thermistor, the resistance of thermistor is obtained Value, so that the temperature to battery is monitored.When being detected to identification resistance and thermistor, then can distinguish According to the resistance value of two kinds of resistance come to battery identity and temperature detect.

In the disclosure, determine whether the identity of battery is legal, passes through the resistance of NTC resistance by the resistance value of ID resistance Whether value is normal come the temperature for determining battery.That is, disclosed method further include: full in the resistance value of the identification resistance When the first preset range of foot and the resistance value of the thermistor meet the second preset range, restore the charge and discharge of the battery It is electrically operated；Or in resistance value the first preset range of satisfaction of the identification resistance or the resistance value of the thermistor When meeting the second preset range, the charge and discharge for restoring the battery is electrically operated.

When the resistance value of ID resistance meets the first preset range, show that the identity of battery is legal identity, in NTC resistance Resistance value meet the second preset range when, show battery temperature be normal temperature.In one embodiment, resistance value and pre- If the comparison of range can be realized by comparator, for example, the resistance value for the ID resistance that will acquire and the first preset range are made For the input of comparator, determine whether the resistance value of ID resistance meets the first preset range according to the output result of comparator, Here the first preset range, which can be according to legal ID resistance, to be arranged.In addition, since battery has the work of safety Temperature range, for example, the safe working temperature range of battery is -20 DEG C~60 DEG C, then the battery temperature detected is in safety In operating temperature range, then show that the temperature of battery is normal temperature.In the disclosure, temperature range is converted into resistance value model It encloses, by judging whether the temperature in the second preset range to determine battery is normal temperature to the resistance value of NTC resistance. When the resistance value of ID resistance meets resistance value the second preset range of satisfaction of the first preset range and/or NTC resistance, show Battery is in a safe condition, and the charge and discharge that can restore battery is electrically operated.

In the disclosure, first preset range or the temperature-sensitive are unsatisfactory in the resistance value of the identification resistance When the resistance value of resistance is unsatisfactory for second preset range, it is electrically operated to control the battery stopping charge and discharge.

When the resistance value of ID resistance is unsatisfactory for first preset range, show that the identity of battery is illegal identity, If carrying out charge and discharge to the illegal battery, there can be security risk, at this point, control battery stopping is filled in order to ensure safety Discharge operation.When the voltage value of NTC resistance is unsatisfactory for second preset range, show that the temperature of battery has exceeded normally Operating temperature range, if damage can be brought to battery or other safety problems occur by continuing to use battery also, it is therefore desirable to It is electrically operated to control battery stopping charge and discharge.

In the disclosure, when control the battery with less than the current value of a threshold value carry out charge and discharge it is electrically operated when, Ke Yitong It crosses and voltage compensation is carried out to identification resistance and/or thermistor, more accurate resistance value is obtained, separately below to charging Voltage compensation in process and discharge process is illustrated.

Firstly, determining the electricity of ID resistance according to charging offset voltage when being charged with the current value less than a threshold value The method of resistance value, comprising the following steps:

According to charging current and the first impedance loop corresponding with the identification resistance, determine that the first charging compensates Voltage value；

According to the first charging offset voltage value, the resistance value of the identification resistance is determined.

Likewise, the method for determining the resistance value of NTC resistance according to charging offset voltage, comprising the following steps:

According to the charging current and second servo loop impedance corresponding with the thermistor, determine that the second charging compensates Voltage value；

According to the second charging offset voltage, the resistance value of the thermistor is determined.

In above-mentioned steps, battery carries out charging operations with low current, although low current charge has greatly reduced altogether The extra voltage generated with circuit, but in order to keep testing result more accurate, it can be by the way of compensation to ID resistance The voltage of voltage and/or NTC resistance compensates, and the resistance of ID resistance and/or NTC resistance is determined according to compensated voltage value Value.

In one embodiment, the first impedance loop corresponds to impedance loop of the common circuit in ID measure loop R_ID-P-, second servo loop impedance is corresponding to impedance loop R of the common circuit in NTC measure loop_NTC-P-.In advance by R_ID-P-, R_NTC-P-, battery is written in the memory using the electronic equipment of the battery with the charging current value of low current charge, to ID When resistance and NTC resistance are detected, the current voltage value of ID resistance and the current voltage value of NTC resistance are obtained, according to R_ID-P-And charging current, the first charging offset voltage value of ID resistance is calculated, according to R_NTC-P-And charging current, it calculates Second charging offset voltage value of NTC resistance out, subtracts the first charging compensation electricity on the basis of the current voltage value of ID resistance Pressure value subtracts the second charging offset voltage value on the basis of the current voltage value of NTC resistance, obtains the electricity of true ID resistance The voltage of pressure and true NTC resistance, the resistance value of ID resistance is determined according to the voltage of true ID resistance, and according to true The voltage of real NTC resistance determines the resistance value of NTC resistance.

In addition, determining the electricity of ID resistance according to charging offset voltage when being discharged with the current value less than a threshold value The method of resistance value, comprising the following steps:

According to discharge current and the first impedance loop corresponding with the identification resistance, the first discharging compensation is determined Voltage value；

According to the first discharging compensation voltage value, the resistance value of the identification resistance is determined.

Likewise, the method for determining the resistance value of NTC resistance according to discharging compensation voltage, comprising the following steps:

According to the discharge current and second servo loop impedance corresponding with the thermistor, the second discharging compensation is determined Voltage value；

According to the second discharging compensation voltage value, the resistance value of the thermistor is determined.

The voltage of ID resistance and NTC resistance and above-mentioned in small electricity is determined according to discharging compensation voltage in low discharging current Determine that the voltage principle of ID resistance and NTC resistance is identical according to charging offset voltage when current charge, it can by R_ID-P-, R_NTC-P-, battery is pre-written into the memory using the electronic equipment of the battery with the discharge current value of low discharging current, The first discharging compensation voltage value is added on the basis of the current voltage value of ID resistance, obtains the voltage value of true ID resistance, The second discharging compensation voltage is added on the basis of the current voltage value of NTC resistance, obtains the voltage value of true NTC resistance, root The resistance value that ID resistance is determined according to the voltage value of true ID resistance determines NTC resistance according to the voltage value of true NTC resistance Resistance value.

In the disclosure, using a compensating parameter library can be preserved in the electronic equipment of the battery, the compensating parameter library In include R_ID-P-, R_NTC-P-, charging current, discharge current.In the calculating for needing to compensate voltage, can directly compensate Required data are read in parameter library and compensate calculating, and certainly, the storage which can also be stored in battery is situated between In matter, or other positions are stored in, the disclosure is without limitation.

Referring to FIG. 5, for a kind of flow chart of battery charge-discharge control method shown in the embodiment of the present disclosure, this method packet It includes:

In step s 51, electrically operated in the charge and discharge period control battery progress charge and discharge of unit period, the unit period Including the charge and discharge period and detection period；

In step S52, it is electrically operated to control the battery stopping charge and discharge for section in the detection, or less than a threshold value It is electrically operated that current value carries out charge and discharge, and obtains the resistance value of the identification resistance of the battery and/or the resistance of thermistor Value；

In step S53, according to the resistance value of the identification resistance, the identity of the battery is determined, and/or according to The resistance value of the thermistor determines the temperature of the battery；

It is normal temperature in the temperature that the identity of the battery is legal identity and/or the battery in step S54 When, in the detection after section, the charge and discharge for restoring the battery is electrically operated.

In the disclosure, can ID resistance to the battery and NTC resistance carry out cycle detection, in a unit period It is interior, including charge and discharge period and detection period, within the charge and discharge period, the normal charge and discharge of the battery progress is electrically operated, It detects in the period, in order to avoid charging and discharging currents generate additional voltage on omnibus circuit, then uses and stop in section when detecting Only the charge and discharge of the battery is electrically operated or the battery with low current to carry out charge and discharge electrically operated.

Unit period can be set according to the actual situation, in one embodiment, a length of when unit period includes Charge and discharge period of 5s and when a length of 20ms the detection period.It for example, is hand in the electronic equipment using the battery When machine, the charging module of mobile phone after the duration for the lasting 5s that charges, needs to detect ID resistance when being charged to the battery With the voltage of NTC resistance, at this point, the processor of mobile phone can issue an instruction to charging module, control charging module stopping is filled Electricity, or charged with low current.In another embodiment, when battery is when the load blocks to mobile phone are powered, electricity Pond, into the detection period, stops working or at this point, mobile phone can send instruction to load blocks with small after regular picture 5s Electric current works, and stops discharge operation or to control battery with this with low current progress discharge operation.

When entering the detection period, battery is in the state for stopping charge and discharge or low current charge and discharge, obtains at this time The voltage of ID resistance and NTC resistance avoids error caused by generating additional voltage on omnibus circuit.Section when detecting The identification resistance of battery can be individually detected, the thermistor of battery can also be individually detected, this can also be detected simultaneously Two kinds of resistance, are separately below illustrated these three situations.

In individually detection ID resistance, the resistance value of ID resistance is obtained, so that it is determined that the identity of battery, in the identity of battery When for legal identity, restore electrically operated to the charge and discharge of battery after section when detecting.

In individually detection NTC resistance, the resistance value of NTC resistance is obtained, so that it is determined that the temperature of battery, in the temperature of battery When degree is normal temperature, restore the charging operations to battery after section when detecting.

When detecting both resistance at the same time, the resistance value of ID resistance and the resistance value of NTC resistance are obtained, thus really The identity and temperature for determining battery are being detected when the temperature that the identity of battery is legal identity and battery is normal temperature Restore after period electrically operated to the charge and discharge of battery.Alternatively, the resistance value of ID resistance and the resistance value of NTC resistance are obtained, The identity of battery is determined according to the resistance value of ID resistance.Alternatively, the resistance value of ID resistance and the resistance value of NTC resistance are obtained, The temperature of battery is determined according to the resistance value of NTC resistance.Above-mentioned detection mode can be selected according to actual needs, the disclosure Without limitation.

In the disclosure, control the battery with less than the current value of a threshold value carry out charge and discharge it is electrically operated when, the choosing of threshold value Select to be set according to the actual situation, for example, the threshold value is the minimum current value for guaranteeing electronic equipment and working normally, or Person's threshold value is the current value etc. when electronic equipment is standby.

In order to guarantee the safety of battery in use, section obtains the resistance of ID resistance and NTC resistance when detecting After value, the identity information of battery is determined according to the resistance value of ID resistance, according to the resistance value of NTC resistance to the current of battery Temperature is detected.When the identity information of battery and/or the temperature of battery meet the requirements, the current state of confirmation battery is peace Total state, the normal charge and discharge that can restore battery are electrically operated.

Optionally, according to the resistance value of the identification resistance, the identity of the battery is determined, and/or according to described The resistance value of thermistor determines the temperature of the battery, comprising: it is pre- to meet first in the resistance value of the identification resistance If when range, determining that the identity of the battery is legal identity；And/or it is default in the resistance value satisfaction second of the thermistor When range, determine that the temperature of the battery is normal temperature.

When the resistance value of ID resistance meets the first preset range, show that the identity of battery is legal identity, in NTC resistance Resistance value meet the second preset range when, show battery temperature be normal temperature.In one embodiment, resistance value and pre- If the comparison of range can be realized by comparator, for example, the resistance value for the ID resistance that will acquire and the first preset range are made For the input of comparator, determine whether the resistance value of ID resistance meets the first preset range according to the output result of comparator, Here the first preset range, which can be according to legal ID resistance, to be arranged.

In addition, since battery has the operating temperature range of safety, for example, the safe working temperature range of battery is -20 DEG C~60 DEG C, then the battery temperature detected within the scope of safe working temperature, then shows that the temperature of battery is normal temperature. In the disclosure, temperature range is converted into resistance value range, by judging the resistance value of NTC resistance whether in the second default model Enclose whether the interior temperature to determine battery is normal temperature.

Optionally, it is unsatisfactory for first preset range in the resistance value of the identification resistance, or in the temperature-sensitive When the resistance value of resistance is unsatisfactory for second preset range, it is electrically operated to control the battery stopping charge and discharge.

When the resistance value of ID resistance is unsatisfactory for first preset range, show that the identity of battery is illegal identity, If carrying out charge and discharge to the illegal battery, there can be security risk, at this point, control battery stopping is filled in order to ensure safety Discharge operation.When the resistance value of NTC resistance is unsatisfactory for second preset range, show that the temperature of battery has exceeded normally Operating temperature range, if damage can be brought to battery or other safety problems occur by continuing to use battery also, it is therefore desirable to It is electrically operated to control battery stopping charge and discharge.

Referring to FIG. 6, for the method flow for carrying out cycle detection to NTC resistance shown in one exemplary embodiment of the disclosure The variation of resistance value will not occur for figure, then detecting ID resistance since identification resistance is usually resistance value fixed resistance Resistance value meet the first preset range when, can determine the battery identity be legal identity, in order to reduce power consumption, Ke Yimo Recognize the battery identity be it is legal, without carrying out cycle detection to ID resistance, it is only necessary to carry out period inspection to the temperature of battery Survey.That is, the method in the disclosure further include:

In step S61, the battery is controlled within the detection period of next unit period, and to stop charge and discharge electrically operated, or with It is electrically operated that charge and discharge is carried out less than the current value of a threshold value, and detects the resistance value of the thermistor；

In step S62, according to the voltage value of the thermistor, the temperature of the battery is determined.

When detecting after section, if testing result shows that the identity of battery is legal and the temperature of battery is in normal Temperature range, then battery is in a safe condition, the charge and discharge that can continue to execute battery is electrically operated.Due in the detection period Have determined that the identity of battery is legal, and the temperature of battery battery during charge and discharge can change, therefore, under In the detection period of one unit period only the resistance value of NTC resistance need to be detected, according to the resistance value of NTC resistance come Detect the temperature of battery.Certainly, the resistance of ID resistance and NTC resistance can still be detected simultaneously in next unit period Value, the disclosure is without limitation.In addition, the duration of a upper unit period and the duration of next unit period can be identical or not Together.For example, the charge and discharge period of a upper unit period is 5s, the detection period is 20ms, the charge and discharge period of next unit period For 10s, the detection period is 10ms.For another example, the charge and discharge period of each unit period is 5s, and the detection period is 20ms.It is single Bit period can be set according to actual needs, and the disclosure is without limitation.

Optionally, in the detection section with less than the current value of a threshold value carry out charge and discharge it is electrically operated when, the acquisition institute The resistance value of identification resistance and/or the resistance value of thermistor for stating battery include: according to charging and discharging currents and with institute Corresponding first impedance loop of identification resistance is stated, determines the charge and discharge offset voltage value of the identification resistance；According to The charge and discharge offset voltage value of the identification resistance, determines the resistance value of the identification resistance；And/or according to charge and discharge Electric current and second servo loop impedance corresponding with the thermistor, determine the charge and discharge offset voltage of the thermistor Value；According to the charge and discharge offset voltage value of the thermistor, the resistance value of the thermistor is determined.

It is electrically operated with low current progress charge and discharge in battery, although low current charge and discharge have greatly reduced common circuit production Raw extra voltage, but in order to keep testing result more accurate, voltage compensation can be carried out to ID resistance and NTC resistance.

In one embodiment, first impedance loop corresponds to impedance loop of the common circuit in ID measure loop R_ID-P-, the second servo loop impedance is corresponding to impedance loop R of the common circuit in NTC measure loop_NTC-P-.In advance will R_ID-P-, R_NTC-P-, battery is written to the memory of the electronic equipment using the battery with the charging and discharging currents value of low current charge In, when entering detection period progress ID resistance and NTC resistance detection, obtain the current voltage value and NTC resistance of ID resistance Current voltage value, according to R_ID-P-And charging current (or discharge current), the offset voltage value of ID resistance is calculated, according to R_NTC-P-And charging current (or discharge current), calculate the offset voltage value of NTC resistance.When charging, in the current of ID resistance The offset voltage value that ID resistance is subtracted on the basis of voltage value subtracts NTC resistance on the basis of the current voltage value of NTC resistance Offset voltage value, obtain the voltage value of true ID resistance and the voltage value of true NTC resistance.When electric discharge, in ID electricity The offset voltage value that ID resistance is added on the basis of the current voltage value of resistance, adds on the basis of the current voltage value of NTC resistance The offset voltage value of upper NTC resistance obtains the voltage value of true ID resistance and the voltage value of true NTC resistance.Root again The resistance value that ID resistance is determined according to the voltage value of true ID resistance determines NTC resistance according to the voltage value of true NTC resistance Resistance value.

As shown in fig. 7, for a kind of battery detection method shown in one exemplary embodiment of the disclosure, this method comprises:

In step S71, the voltage value of identification resistance and/or the voltage value of thermistor are obtained；

In step S72, the offset voltage value of the identification resistance and/or the compensation electricity of the thermistor are obtained Pressure value；

In step S73, according to the voltage value of the identification resistance, the offset voltage of the identification resistance Value, determines the target voltage values of the identification resistance, and/or according to the thermistor, the compensation of the thermistor Voltage value determines the target voltage values of the thermistor；

In step S74, according to the target voltage values of the identification resistance, the electricity of the identification resistance is determined Resistance value, and/or according to the target voltage values of the thermistor, determine the resistance value of the thermistor.

In the disclosure, in order to guarantee the accurate of the voltage of ID resistance and the voltage of NTC resistance, by the way of compensation To be modified to the voltage value of acquisition.For example, it when battery is in the state of normal charge and discharge, needs to ID resistance And/or NTC resistance is detected, obtaining the voltage value of ID resistance and/or the voltage value of NTC resistance, the voltage value can pass through Voltmeter, multimeter measurement, can also be calculated by the formula of preservation and be obtained.The offset voltage value of ID resistance is obtained, and/or The offset voltage value of NTC resistance, wherein the offset voltage value of ID resistance is used to compensate common circuit returning in ID measure loop The anti-R of roadlock_ID-P-The voltage of generation, the offset voltage value of NTC resistance is for compensating circuit of the common circuit in NTC measure loop Impedance R_NTC-P-The voltage of generation.The voltage value of ID resistance is compensated according to the offset voltage value of ID resistance, according to NTC electricity The offset voltage value of resistance compensates the voltage value of NTC resistance, and corresponding compensation electricity is subtracted when battery is in charging operations Pressure value adds corresponding offset voltage value when battery is in discharge operation, obtains the target electricity of accurate identification resistance The target voltage values of pressure value and accurate thermistor.Finally ID resistance is determined according to the target voltage values of identification resistance Resistance value, and/or determine according to the target voltage values of thermistor the resistance value of thermistor.

Optionally, the offset voltage value of the identification resistance and/or the offset voltage value of the thermistor are obtained, It include: that the identification is obtained according to charging and discharging currents and the first impedance loop corresponding with the identification resistance The offset voltage value of resistance；And/or it according to charging and discharging currents and second servo loop impedance corresponding with the thermistor, obtains The offset voltage value of the thermistor.

In the disclosure, using a compensating parameter library can be preserved in the electronic equipment of the battery, the compensating parameter library In include R_ID-P-, R_NTC-P-, charging current, discharge current, the calculation formula etc. of offset voltage.Needing to compensate voltage When calculating, required data can directly being read in compensating parameter library and compensating calculating, certainly, which may be used also To be stored on the storage medium of battery, or other positions are stored in, the disclosure is without limitation.

In the following, in order to better understand the battery detection method in the disclosure, respectively in constant voltage method and constant For current methods detect ID resistance, NTC resistance, voltage compensation is further detailed.

In constant voltage method, pass through the load resistance R in ID measure loop₁The voltage at both ends determines ID resistance two The voltage at end passes through the load resistance R in NTC measure loop₂The voltage at both ends determines the voltage at NTC resistance both ends.

When battery is in discharge condition, according to R_ID-P-, discharge current I_{Electric discharge}, determine the first discharging compensation voltage:

V_{First discharging compensation}=I_{Electric discharge}×R_ID-P-；

According to the first discharging compensation voltage, load resistance R₁Voltage after the compensation at both ends are as follows:

According to R_NTC-P-, discharge current I_{Electric discharge}, determine the second discharging compensation voltage:

V_{Second discharging compensation}=I_{Electric discharge}×R_NTC-P-；

According to the second discharging compensation voltage, load resistance R₂Voltage after the compensation at both ends are as follows:

When battery is in charged state, according to R_ID-P-, charging current I_Charging, determine the first charging offset voltage:

V_{First charging compensation}=I_Charging×R_ID-P-；

According to the first charging offset voltage, load resistance R₁Voltage after the compensation at both ends are as follows:

According to R_NTC-P-, charging current I_Charging, determine the second charging offset voltage:

V_{Second charging compensation}=I_Charging×R_NTC-P-；

According to the second charging offset voltage, load resistance R₂Voltage after the compensation at both ends are as follows:

As it can be seen that substantially eliminating common circuit production after being modified according to voltage of the offset voltage to load resistance The influence of raw extra voltage, so that testing result is more accurate.

In constant current process, by the way that constant current source I is arranged in ID measure loop and NTC measure loop_S, come Detect the voltage at ID resistance both ends and the voltage at NTC resistance both ends.

V_{First discharging compensation}=I_{Electric discharge}×R_ID-P-；

According to the first discharging compensation voltage, the target voltage values of ID resistance are as follows:

V=I_S×R_ID-I_{Electric discharge}×R_ID-P-+V_{First discharging compensation}；

V_{Second discharging compensation}=I_{Electric discharge}×R_NTC-P-；

According to the second discharging compensation voltage, the target voltage values of NTC resistance are as follows:

V=I_S×R_NTC-I_{Electric discharge}×R_NTC-P-+V_{Second discharging compensation}；

V_{First charging compensation}=I_Charging×R_ID-P-；

According to the first charging offset voltage, the target voltage values of ID resistance are as follows:

V=I_S×R_ID+I_Charging×R_ID-P--V_{First charging compensation}；

V_{Second charging compensation}=I_Charging×R_NTC-P-；

According to the second charging offset voltage, the target voltage values of NTC resistance are as follows:

V=I_S×R_NTC+I_Charging×R_NTC-P--V_{Second charging compensation}；

As it can be seen that being eliminated altogether after being modified according to offset voltage to the voltage of ID resistance and the voltage of NTC resistance With circuit generate extra voltage influence so that testing result is more accurate.

It is full in the resistance value of the identification resistance in order to identify the identity information of battery and detect the temperature of battery When the first preset range of foot, determine that the identity of the battery is legal identity；Meet second in the resistance value of the thermistor When preset range, determine that the temperature of the battery is normal temperature.

Since identification resistance is usually the fixed resistance of resistance value, the variation of resistance value will not occur, then detecting When the resistance value of ID resistance meets the first preset range, it can determine that the identity of the battery is legal identity, in order to reduce power consumption, Can default the battery identity be it is legal, without persistently to ID resistance carry out cycle detection.Since the temperature of battery can be with Charge and discharge is electrically operated changes, therefore, be in positive room temperature in the temperature that the identity for determining battery is legal identity and battery It, can be with a predetermined detection frequency detecting NTC resistance, for example, detecting NTC resistance with 5s primary frequency after spending in range Resistance value, to realize the real-time detection to battery temperature.

In the disclosure, if determining that the identity of battery is illegal according to the resistance value of identification resistance, or The reason of determining the temperature of battery according to the resistance value of thermistor not in the normal temperature range, lead to this result has two Kind.It is undesirable that one is batteries itself, and in this case in order to guarantee safety, the charge and discharge that can stop battery is electrically operated. Another is that the target voltage values of ID resistance determined by offset voltage method or the target voltage values of NTC resistance may deposit In error.At this point it is possible to take following two measure:

The first measure:

In the measure, the resistance value of ID resistance and/or NTC resistance is obtained in the case where stopping battery charging and discharging, by In the extra voltage generated on common circuit without charging and discharging currents, the ID resistance of acquisition and/or the resistance value of NTC resistance It is more accurate, with this come determine battery identity and temperature it is also more accurate.

Second of measure:

First preset range, or the electricity in the thermistor are unsatisfactory in the resistance value of the identification resistance It is electrically operated to carry out charge and discharge less than the current value of a threshold value when resistance value is unsatisfactory for second preset range；

When the battery is to carry out charge and discharge less than the current value of a threshold value, the benefit with the identification resistance is obtained Repay the offset voltage value of voltage value and/or the thermistor；

According to the offset voltage value of the identification resistance, the resistance value of identification resistance is determined, and/or according to institute The offset voltage value for stating thermistor, determines the resistance value of thermistor.

In the measure, by controlling the charge and discharge of battery low current, according to the current value of low current charge and discharge, omnibus circuit The first impedance loop in ID measure loop determines the offset voltage value of ID resistance, and the electric current according to low current charge and discharge The second servo loop impedance of value, omnibus circuit in NTC measure loop determines the offset voltage value of NTC resistance, and according to ID resistance Offset voltage value determine the resistance value of ID resistance, the resistance value of NTC resistance is determined according to the offset voltage value of NTC resistance.By It is smaller in the partial pressure of battery omnibus circuit in the case where low current charge and discharge, by offset voltage to ID resistance and NTC electricity The voltage of resistance is modified, so that testing result is more accurate.

If the testing result of any of the above-described kind of measure is used to show the identity of battery for legal identity and the temperature of battery Degree meets normal temperature range, then the normal charge and discharge that can restore battery is electrically operated.If using the detection of above two measure Result is still that the identity of battery is that illegal identity or battery temperature are not in normal temperature range, then shows battery For ineligible battery, there are security risks, at this point, stopping the charge and discharge to battery.

In the disclosure, the voltage value of the voltage value for obtaining the identification resistance and the thermistor it Before, the method also includes: controlling the battery, to stop charge and discharge electrically operated or to carry out charge and discharge less than the current value of a threshold value Operation.Stop charge and discharge in battery or to detect when low current charge and discharge to ID resistance and NTC resistance, wherein in electricity When pond stopping charge and discharge is electrically operated, the offset voltage value of ID resistance, the offset voltage value of NTC resistance are zero, in battery to be less than When the current value progress charge and discharge of one threshold value is electrically operated, the offset voltage value of ID resistance is determined according to the current value of low current charge and discharge And the offset voltage value of NTC resistance.

As shown in figure 8, a kind of resistor detecting device of the battery provided for one embodiment of the disclosure, comprising:

First control module 81 is configured as when the resistance to battery detects, and is controlled the battery and is stopped charge and discharge It is electrically operated or electrically operated to carry out charge and discharge less than the current value of a threshold value；

Processing module 82 is configured as obtaining the resistance value of the identification resistance of the battery and/or thermistor Resistance value.

Optionally, described device further include:

Charge-discharge modules are configured as meeting the first preset range, Yi Jisuo in the resistance value of the identification resistance When stating resistance value the second preset range of satisfaction of thermistor, the charge and discharge for restoring the battery is electrically operated；Or in the identity It is extensive when the resistance value of resistance value the first preset range of satisfaction or the thermistor that identify resistance meets the second preset range The charge and discharge of the multiple battery is electrically operated.

Optionally, described device further include:

Second control module is configured as being unsatisfactory for the described first default model in the resistance value of the identification resistance It encloses or when the resistance value of the thermistor is unsatisfactory for second preset range, controlling the battery, to stop charge and discharge electrically operated.

About the device in above-described embodiment, wherein modules execute the concrete mode of operation in related this method Embodiment in be described in detail, no detailed explanation will be given here.

As shown in figure 9, implementing a kind of battery charging and discharging control device exemplified for the disclosure one, comprising:

Charge-discharge modules 91 are configured as, institute electrically operated in the charge and discharge period control battery progress charge and discharge of unit period Stating unit period includes the charge and discharge period and detection period；

First processing module 92 is configured as section in the detection and controls the battery to stop charge and discharge electrically operated, or with It is electrically operated that charge and discharge is carried out less than the current value of a threshold value, and obtains the resistance value and/or heat of the identification resistance of the battery The resistance value of quick resistance；

Second processing module 93 is configured as determining the body of the battery according to the resistance value of the identification resistance Part, and/or determine according to the resistance value of the thermistor temperature of the battery；

Third processing module 94 is configured as in the temperature that the identity of the battery is legal identity and/or the battery When for normal temperature, in the detection after section, the charge and discharge for restoring the battery is electrically operated.

Optionally, Second processing module 93 includes:

First processing submodule is configured as when the resistance value of the identification resistance meets the first preset range, The identity for determining the battery is legal identity；And/or

Second processing submodule is configured as determining when the resistance value of the thermistor meets the second preset range The temperature of the battery is normal temperature.

Optionally, described device further include:

Control module is configured as being unsatisfactory for first preset range in the resistance value of the identification resistance, or When the resistance value of the thermistor is unsatisfactory for second preset range, it is electrically operated to control the battery stopping charge and discharge.

Optionally, described device further include:

Detection module is configured as controlling the battery stopping charge and discharge behaviour within the detection period of next unit period Make, or electrically operated to carry out charge and discharge less than the current value of a threshold value, and detects the resistance value of the thermistor；

Determining module is configured as the resistance value according to the thermistor, determines the temperature of the battery.

Optionally, the detection module includes:

First determine submodule, be configured as according to charging and discharging currents and with the identification resistance corresponding first Impedance loop determines the charge and discharge offset voltage value of the identification resistance；

Second determines submodule, is configured as the charge and discharge offset voltage value according to the identification resistance, determines institute State the resistance value of identification resistance；And/or

Third determines submodule, is configured as according to charging and discharging currents and second servo loop corresponding with the thermistor Impedance determines the charge and discharge offset voltage value of the thermistor；

4th determines submodule, is configured as the charge and discharge offset voltage value according to the thermistor, determines the heat The resistance value of quick resistance.

As shown in Figure 10, implement a kind of resistor detecting device of the battery exemplified for the disclosure one, comprising:

First obtains module 101, is configured as obtaining the voltage value of identification resistance and/or the voltage of thermistor Value；

Second obtains module 102, is configured as obtaining the offset voltage value and/or the temperature-sensitive of the identification resistance The offset voltage value of resistance；

First processing module 103 is configured as the voltage value according to the identification resistance, the identification resistance Offset voltage value, determine the target voltage values of the identification resistance, and/or according to the thermistor, the temperature-sensitive The offset voltage value of resistance, determines the target voltage values of the thermistor；

Second processing module 104 is configured as determining the identity according to the target voltage values of the identification resistance It identifies the resistance value of resistance, and/or according to the target voltage values of the thermistor, determines the resistance value of the thermistor.

Optionally, the second acquisition module 102 includes:

Acquisition submodule is configured as according to charging and discharging currents and the first circuit corresponding with the identification resistance Impedance obtains the offset voltage value of the identification resistance；And/or according to charging and discharging currents and with the thermistor pair The second servo loop impedance answered obtains the offset voltage value of the thermistor.

Optionally, described device further include:

First control module is configured as being unsatisfactory for the first preset range in the resistance value of the identification resistance, or When the resistance value of the thermistor is unsatisfactory for the second preset range, it is electrically operated to control the battery stopping charge and discharge；

Third obtains module, is configured as obtaining the identification resistance when battery stopping charge and discharge is electrically operated Resistance value and/or the thermistor resistance value.

Optionally, described device further include:

Second control module, be configured as control battery stop charge and discharge it is electrically operated or with less than the current value of a threshold value carry out Charge and discharge is electrically operated.

The disclosure also provides a kind of computer readable storage medium, is stored thereon with computer program instructions, which refers to The step of enabling the resistor detection method that the battery in disclosure Fig. 4 is realized when being executed by processor.

Correspondingly, the disclosure also provides a kind of electronic equipment, including above-mentioned computer readable storage medium and one or The multiple processors of person, for executing the program in computer scale storage medium.

The disclosure also provides a kind of computer readable storage medium, is stored thereon with computer program instructions, which refers to The step of enabling the battery charge-discharge control method realized in the disclosure Fig. 5 when being executed by processor.

The disclosure also provides a kind of computer readable storage medium, is stored thereon with computer program instructions, which refers to The step of enabling the resistor detection method that the battery in disclosure Fig. 7 is realized when being executed by processor.

The preferred embodiment of the disclosure is described in detail in conjunction with attached drawing above, still, the disclosure is not limited to above-mentioned reality The detail in mode is applied, in the range of the technology design of the disclosure, a variety of letters can be carried out to the technical solution of the disclosure Monotropic type, these simple variants belong to the protection scope of the disclosure.

It is further to note that specific technical features described in the above specific embodiments, in not lance In the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the disclosure to it is various can No further explanation will be given for the combination of energy.

In addition, any combination can also be carried out between a variety of different embodiments of the disclosure, as long as it is without prejudice to originally Disclosed thought equally should be considered as disclosure disclosure of that.

Claims

1. a kind of resistor detection method of battery, which is characterized in that the described method includes:

When the resistance to battery detects, it is electrically operated to control the battery stopping charge and discharge, or with the electric current less than a threshold value It is electrically operated that value carries out charge and discharge；

2. according to the method described in claim 1, which is characterized in that in the electricity for the identification resistance for obtaining the battery After resistance value and/or the resistance value of thermistor, the method also includes:

Meet the in the resistance value that the resistance value of the identification resistance meets the first preset range and the thermistor When two preset ranges, the charge and discharge for restoring the battery is electrically operated；

Or

After the resistance value of identification resistance or the resistance value of thermistor for obtaining the battery, the method is also wrapped It includes:

Meet second in the resistance value that the resistance value of the identification resistance meets the first preset range or the thermistor When preset range, the charge and discharge for restoring the battery is electrically operated.

3. according to the method described in claim 2, it is characterized in that, the electricity of the identification resistance in the acquisition battery After resistance value and/or the resistance value of thermistor, the method also includes:

The resistance value of first preset range or the thermistor is unsatisfactory for not in the resistance value of the identification resistance When meeting second preset range, it is electrically operated to control the battery stopping charge and discharge.

4. a kind of battery charge-discharge control method, which is characterized in that the described method includes:

It is electrically operated in the charge and discharge period control battery progress charge and discharge of unit period, when the unit period includes the charge and discharge Section and detection period；

It is electrically operated to control the battery stopping charge and discharge for section in the detection, or to carry out charge and discharge less than the current value of a threshold value Operation, and obtain the resistance value of the identification resistance of the battery and/or the resistance value of thermistor；

According to the resistance value of the identification resistance, the identity of the battery, and/or the electricity according to the thermistor are determined Resistance value determines the temperature of the battery；

When the temperature that the identity of the battery is legal identity and/or the battery is normal temperature, section in the detection After, the charge and discharge for restoring the battery is electrically operated.

5. according to the method described in claim 4, it is characterized in that, the resistance value according to the identification resistance, really Determine the identity of the battery, and/or determine the temperature of the battery according to the resistance value of the thermistor, comprising:

When the resistance value of the identification resistance meets the first preset range, determine that the identity of the battery is legal body Part；And/or

When the resistance value of the thermistor meets the second preset range, determine that the temperature of the battery is normal temperature.

6. according to the method described in claim 5, it is characterized in that, the method also includes:

First preset range, or the resistance value in the thermistor are unsatisfactory in the resistance value of the identification resistance When being unsatisfactory for second preset range, it is electrically operated to control the battery stopping charge and discharge.

7. according to the method described in claim 4, it is characterized in that, restoring the electricity after the section in the detection After the charge and discharge in pond is electrically operated, the method also includes:

It is electrically operated that the battery stopping charge and discharge being controlled within the detection period of next unit period, or to be less than the electricity of the threshold value It is electrically operated that flow valuve carries out charge and discharge, and detects the resistance value of the thermistor；

8. according to the method described in claim 4, it is characterized in that, in the detection section with the current value less than a threshold value into When row charge and discharge is electrically operated, the resistance value of the identification resistance for obtaining the battery and/or the resistance value packet of thermistor It includes:

According to charging and discharging currents and the first impedance loop corresponding with the identification resistance, the identification electricity is determined The charge and discharge offset voltage value of resistance；

According to the charge and discharge offset voltage value of the identification resistance, the resistance value of the identification resistance is determined；And/or

According to charging and discharging currents and second servo loop impedance corresponding with the thermistor, the charge and discharge of the thermistor is determined Electronic compensating voltage value；

9. a kind of resistor detection method of battery, which is characterized in that the described method includes:

According to the voltage value of the identification resistance, the offset voltage value of the identification resistance determines that the identity is known The target voltage values of other resistance, and/or according to the voltage value of the thermistor, the offset voltage value of the thermistor, really The target voltage values of the fixed thermistor；

According to the target voltage values of the identification resistance, the resistance value of the identification resistance is determined, and/or according to institute The target voltage values for stating thermistor determine the resistance value of the thermistor.

10. according to the method described in claim 9, it is characterized in that, the offset voltage for obtaining the identification resistance The offset voltage value of value and/or the thermistor, comprising:

According to charging and discharging currents and the first impedance loop corresponding with the identification resistance, the identification electricity is obtained The offset voltage value of resistance；And/or

According to charging and discharging currents and second servo loop impedance corresponding with the thermistor, the compensation of the thermistor is obtained Voltage value.

11. according to the method described in claim 9, it is characterized in that, in the target electricity according to the identification resistance Pressure value, determines the resistance value of the identification resistance, and/or according to the target voltage values of the thermistor, determine described in After the resistance value of thermistor, the method also includes:

It is unsatisfactory for the first preset range in the resistance value of the identification resistance, or discontented in the resistance value of the thermistor When the second preset range of foot, it is electrically operated to control the battery stopping charge and discharge；

The battery stop charge and discharge it is electrically operated when, obtain the identification resistance resistance value and/or the thermistor Resistance value.

12. according to the method described in claim 9, it is characterized in that, in the voltage value for obtaining the identification resistance And before the voltage value of the thermistor, the method also includes:

13. a kind of resistor detecting device of battery, which is characterized in that described device includes:

Control module is configured as when the resistance to battery detects, and controlling the battery, to stop charge and discharge electrically operated, or with It is electrically operated that charge and discharge is carried out less than the current value of a threshold value；

Processing module is configured as obtaining the resistance value of the identification resistance of the battery and/or the resistance value of thermistor.

14. a kind of battery charging and discharging control device, which is characterized in that described device includes:

Charge-discharge modules are configured as, the unit electrically operated in the charge and discharge period control battery progress charge and discharge of unit period Period includes the charge and discharge period and detection period；

It is electrically operated to be configured as the battery stopping charge and discharge of section control in the detection for first processing module, or less than one It is electrically operated that the current value of threshold value carries out charge and discharge, and obtains the resistance value and/or thermistor of the identification resistance of the battery Resistance value；

Second processing module is configured as the resistance value according to the identification resistance, determines the identity of the battery, and/ Or the temperature of the battery is determined according to the resistance value of the thermistor；

Third processing module is configured as in the temperature that the identity of the battery is legal identity and/or the battery being normal When temperature, in the detection after section, the charge and discharge for restoring the battery is electrically operated.

15. a kind of resistor detecting device of battery, which is characterized in that described device includes:

Second obtains module, is configured as obtaining the offset voltage value of the identification resistance and/or the thermistor Offset voltage value；

First processing module is configured as the voltage value according to the identification resistance, the compensation of the identification resistance Voltage value, determines the target voltage values of the identification resistance, and/or according to the thermistor, the thermistor Offset voltage value determines the target voltage values of the thermistor；

Second processing module is configured as the target voltage values according to the identification resistance, determines the identification electricity The resistance value of resistance, and/or according to the target voltage values of the thermistor, determine the resistance value of the thermistor.

16. a kind of electronic equipment characterized by comprising

Processor；

Memory for storage processor executable instruction；

Wherein, the processor is configured to:

17. a kind of electronic equipment characterized by comprising

Processor；

Memory for storage processor executable instruction；

Wherein, the processor is configured to:

18. a kind of electronic equipment characterized by comprising

Processor；

Memory for storage processor executable instruction；

Wherein, the processor is configured to:

According to the voltage value of the identification resistance, the offset voltage value of the identification resistance determines that the identity is known The target voltage values of other resistance, and/or according to the thermistor, the offset voltage value of the thermistor determines the heat The target voltage values of quick resistance；