CN109131154A - Vehicle-mounted low tension battery charging method - Google Patents
Vehicle-mounted low tension battery charging method Download PDFInfo
- Publication number
- CN109131154A CN109131154A CN201810991679.3A CN201810991679A CN109131154A CN 109131154 A CN109131154 A CN 109131154A CN 201810991679 A CN201810991679 A CN 201810991679A CN 109131154 A CN109131154 A CN 109131154A
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- CN
- China
- Prior art keywords
- battery
- charging
- temp
- moment
- battery temp
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0036—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using connection detecting circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
Abstract
The present invention provides a kind of vehicle-mounted low tension battery charging methods, and the output electric current of vehicle control unit controls DC/DC converter first is I0, output voltage U0Constant-current constant-voltage charging is carried out to battery, if the battery temp at a certain moment detected is greater than battery warning temperature, then judge whether the battery temp at the moment is less than the battery temp of previous moment, if, the difference △ T of the battery temp at the moment and the battery temp of previous moment is then calculated, and uses the charging current I of pid algorithm calculating accumulator using △ TPID, the output electric current of vehicle control unit controls DC/DC converter changes into I laterPID, output voltage it is constant still be U0It charges to battery, terminates to charge if detecting that the battery temp at a certain moment is greater than the maximum allowable charging temperature of battery, otherwise loop to determine battery temp, charged using different electric currents.The method of the present invention simple possible, can be improved charge efficiency, avoid battery temp excessively high.
Description
Technical field
The present invention relates to a kind of method for charging batteries, in particular to a kind of vehicle-mounted low tension battery charging method.
Background technique
Vehicle-mounted DC/DC converter gives low tension battery, that is, lead acid battery charge technology, in pure electric automobile and mixing
It has a wide range of applications in power vehicle.Low tension battery is mainly each controller and low voltage equipment power supply, for vehicle
It runs most important.Vehicle when environment temperature is excessively high, charging current is unreasonable will lead to low tension battery temperature rise it is too fast,
The phenomenon that battery maximum permissible temperature may be had more than appearance leads to low charge efficiency, life of storage battery shortening and causes to endanger
The problems such as dangerous accident.At present is concentrated on for the control of low tension battery DC/DC converter startup stage, in order to protect battery
It is main to focus in the control to voltage and current from impact, and improve the topology between charger, battery and electrical appliance
The influence of connection structure, temperature is not taken into account, this leads to the reduction of battery charge efficiency, and service lifetime of accumulator shortens.
Summary of the invention
For prior art defect, the present invention is intended to provide a kind of vehicle-mounted low tension battery charging method, simple possible are filled
Electric safety, charge efficiency is high, and the method using control charging current controls battery temp in reasonable section, avoids electric power storage
Pond temperature rises too fast.
The present invention is realized by the following scheme:
A kind of vehicle-mounted low tension battery charging method, sequentially includes the following steps:
S1: the output electric current of vehicle control unit controls DC/DC converter is I0, output voltage U0Battery is carried out permanent
Flow constant-voltage charge；
S2: during the charging process, charging voltage, charging current and the battery temp of real-time detection battery, and will inspection
Charging voltage, charging current and the battery temp data of the battery measured are transmitted in entire car controller, entire car controller
Again by the data forwarding received to human-computer interaction interface real-time display；
S3: whether the battery temp that real-time judge step S2 is detected is greater than battery warning temperature, if detect
The battery temp at a certain moment is greater than battery warning temperature, thens follow the steps S4, no to then follow the steps S1；
S4: judging whether the battery temp at the moment is less than the battery temp of previous moment, if so, thening follow the steps
S5, it is no to then follow the steps S1；
S5: the difference △ T of the battery temp at the moment and the battery temp of previous moment is calculated, and is adopted using △ T
With the charging current I of pid algorithm calculating accumulatorPID, the output electric current of vehicle control unit controls DC/DC converter changes later
For IPID, output voltage it is constant still be U0It charges to battery；
S6: judging whether the battery temp detected is greater than the maximum allowable charging temperature of battery, if certain detected
The battery temp at one moment be greater than the maximum allowable charging temperature of battery, then terminate to charge, otherwise circulation execute step S2~
S5。
In the step S3, the value range of battery warning temperature is 53~55 DEG C；In the step S6, battery is most
The big value range for allowing charging temperature is 65~70 DEG C.
In the step S1, the output electric current I of DC/DC converter0Value range be 38~70A, output voltage U0Take
Value range is 12.75~14.0V.
Vehicle-mounted low tension battery charging method of the invention, simple possible are more than battery warning temperature in battery temp
After degree, charging current is controlled using the temperature signal that temperature sensor is fed back, changes the output electric current of DC/DC converter
It charges, so that battery temp is begun to decline, battery temp is stablized in reasonable section, guarantees battery temperature
Degree is no more than the maximum allowable charging temperature of battery, can avoid peril caused by due to battery temp is excessively high, to mention
The service life of high battery.The method of the present invention haves no need to change existing equipment hardware, and compatibility is strong, can guarantee charging safety, and
Charge efficiency is high, can provide Real-time Monitoring Data for user.
Detailed description of the invention
Fig. 1 is the control flow chart of vehicle-mounted low tension battery charging method in embodiment 1；
Fig. 2 is that the temperature curve for the low tension battery for being charged using 1 method of embodiment with being charged using conventional method is compared
Figure.
Specific embodiment
The invention will be further described with reference to embodiments, but the invention is not limited to the statements of embodiment.
Embodiment 1
A kind of vehicle-mounted low tension battery charging method, control flow chart is as shown in Figure 1, sequentially include the following steps:
S1: the output electric current of vehicle control unit controls DC/DC converter is I0, output voltage U0Battery is carried out permanent
Flow constant-voltage charge；The wherein output electric current I of DC/DC converter0Value range be 38~70A, the I of the present embodiment0Value is
50A, output voltage U0Value range be 12.75~14.0V, the U of the present embodiment0Value is 13.7V；
S2: during the charging process, charging voltage, charging current and the battery temp of real-time detection battery, and will inspection
Charging voltage, charging current and the battery temp data of the battery measured are transmitted in entire car controller, entire car controller
Again by the data forwarding received to human-computer interaction interface real-time display；
S3: whether the battery temp that real-time judge step S2 is detected is greater than battery warning temperature, if detect
The battery temp at a certain moment is greater than battery warning temperature, thens follow the steps S4, no to then follow the steps S1；Wherein, electric power storage
The value range of pond warning temperature is 53~55 DEG C, and the present embodiment value is 55 DEG C；
S4: judging whether the battery temp at the moment is less than the battery temp of previous moment, if so, thening follow the steps
S5, it is no to then follow the steps S1；
S5: the difference △ T of the battery temp at the moment and the battery temp of previous moment is calculated, and is adopted using △ T
With the charging current I of pid algorithm calculating accumulatorPID, the output electric current of vehicle control unit controls DC/DC converter changes later
For IPID, output voltage it is constant still be U0It charges to battery；
S6: judging whether the battery temp detected is greater than the maximum allowable charging temperature of battery, if certain detected
The battery temp at one moment be greater than the maximum allowable charging temperature of battery, then terminate to charge, otherwise circulation execute step S2~
S5；Wherein the value range of the maximum allowable charging temperature of battery is 65~70 DEG C, and the present embodiment value is 65 DEG C.
The temperature curve for the low tension battery for using 1 method of embodiment to charge is stored with the low pressure for using conventional method to charge
The temperature curve of battery is compared, as shown in Fig. 2, wherein dotted line indicate be using conventional method charge low tension battery
Temperature curve, solid line indicate is using 1 method of embodiment charge low tension battery temperature curve.It can from Fig. 2
Out, the temperature of the low tension battery to be charged using 1 method of embodiment is lower, due to charging after slightly above battery warning temperature
The change of electric current so that battery temp is begun to decline, and the temperature for the low tension battery for using conventional method to charge always on
It rises, even more than the maximum allowable charging temperature of battery.
Claims (3)
1. a kind of vehicle-mounted low tension battery charging method, it is characterised in that: sequentially include the following steps:
S1: the output electric current of vehicle control unit controls DC/DC converter is I0, output voltage U0It is permanent that constant current is carried out to battery
Pressure charging；
S2: during the charging process, charging voltage, charging current and the battery temp of real-time detection battery, and will test
Charging voltage, charging current and the battery temp data of battery be transmitted in entire car controller, entire car controller again will
The data forwarding received is to human-computer interaction interface real-time display；
S3: whether the battery temp that real-time judge step S2 is detected is greater than battery warning temperature, if what is detected is a certain
The battery temp at moment is greater than battery warning temperature, thens follow the steps S4, no to then follow the steps S1；
S4: judging whether the battery temp at the moment is less than the battery temp of previous moment, if so, S5 is thened follow the steps,
It is no to then follow the steps S1；
S5: the difference △ T of the battery temp at the moment and the battery temp of previous moment is calculated, and uses PID using △ T
The charging current I of algorithm calculating accumulatorPID, the output electric current of vehicle control unit controls DC/DC converter changes into I laterPID、
Constant output voltage is still U0It charges to battery；
S6: judging whether the battery temp detected is greater than the maximum allowable charging temperature of battery, if certain detected is for the moment
The battery temp at quarter is greater than the maximum allowable charging temperature of battery, then terminates to charge, and otherwise circulation executes step S2~S5.
2. vehicle-mounted low tension battery charging method as described in claim 1, it is characterised in that: in the step S3, battery
The value range of warning temperature is 53~55 DEG C；In the step S6, the value range of the maximum allowable charging temperature of battery is
65~70 DEG C.
3. vehicle-mounted low tension battery charging method as claimed in claim 1 or 2, it is characterised in that: in the step S1, DC/
The output electric current I of DC converter0Value range be 38~70A, output voltage U0Value range be 12.75~14.0V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810991679.3A CN109131154A (en) | 2018-08-29 | 2018-08-29 | Vehicle-mounted low tension battery charging method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810991679.3A CN109131154A (en) | 2018-08-29 | 2018-08-29 | Vehicle-mounted low tension battery charging method |
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| CN109131154A true CN109131154A (en) | 2019-01-04 |
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| CN201810991679.3A Pending CN109131154A (en) | 2018-08-29 | 2018-08-29 | Vehicle-mounted low tension battery charging method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111564888A (en) * | 2020-06-10 | 2020-08-21 | 北京汇能精电科技股份有限公司 | Charging control method and device based on temperature feedback |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1588750A (en) * | 2004-10-13 | 2005-03-02 | 北京嘉捷源技术开发有限公司 | Intelligent controller charging accumulator and quick charging method of its regulating current |
| CN101630762A (en) * | 2008-07-14 | 2010-01-20 | 宏碁股份有限公司 | Method and device for charging battery |
| JP2011101486A (en) * | 2009-10-16 | 2011-05-19 | Cheng Uei Precision Industry Co Ltd | Rechargeable battery control method of electronic device |
| WO2012144060A1 (en) * | 2011-04-22 | 2012-10-26 | トヨタ自動車株式会社 | Charging device and charging method |
| CN104037898A (en) * | 2014-07-02 | 2014-09-10 | 东南大学 | Self-adapting charging method for vehicle-mounted power battery |
| US20160079777A1 (en) * | 2012-01-19 | 2016-03-17 | Apple Inc. | Charging techniques for solid-state batteries in portable electronic devices |
| CN106602616A (en) * | 2015-10-14 | 2017-04-26 | 深圳市中兴微电子技术有限公司 | Charging method and mobile terminal |
-
2018
- 2018-08-29 CN CN201810991679.3A patent/CN109131154A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1588750A (en) * | 2004-10-13 | 2005-03-02 | 北京嘉捷源技术开发有限公司 | Intelligent controller charging accumulator and quick charging method of its regulating current |
| CN101630762A (en) * | 2008-07-14 | 2010-01-20 | 宏碁股份有限公司 | Method and device for charging battery |
| JP2011101486A (en) * | 2009-10-16 | 2011-05-19 | Cheng Uei Precision Industry Co Ltd | Rechargeable battery control method of electronic device |
| WO2012144060A1 (en) * | 2011-04-22 | 2012-10-26 | トヨタ自動車株式会社 | Charging device and charging method |
| US20160079777A1 (en) * | 2012-01-19 | 2016-03-17 | Apple Inc. | Charging techniques for solid-state batteries in portable electronic devices |
| CN104037898A (en) * | 2014-07-02 | 2014-09-10 | 东南大学 | Self-adapting charging method for vehicle-mounted power battery |
| CN106602616A (en) * | 2015-10-14 | 2017-04-26 | 深圳市中兴微电子技术有限公司 | Charging method and mobile terminal |
Non-Patent Citations (1)
| Title |
|---|
| 杨世春: "《电动汽车设计基础》", 31 July 2013, 北京：国防工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111564888A (en) * | 2020-06-10 | 2020-08-21 | 北京汇能精电科技股份有限公司 | Charging control method and device based on temperature feedback |
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Application publication date: 20190104 |