CN104868516B - A kind of battery pre-charging guard method and device - Google Patents
A kind of battery pre-charging guard method and device Download PDFInfo
- Publication number
- CN104868516B CN104868516B CN201410798233.0A CN201410798233A CN104868516B CN 104868516 B CN104868516 B CN 104868516B CN 201410798233 A CN201410798233 A CN 201410798233A CN 104868516 B CN104868516 B CN 104868516B
- Authority
- CN
- China
- Prior art keywords
- battery
- design variables
- unit
- detection number
- default detection
- 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.)
- Expired - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The present invention provides a kind of battery pre-charging guard method and device, methods described comprise the following steps：S1：Design variables are initialized, it is 0 to make the design variables；S2：To loading into line precharge；S3:Obtain the voltage U at battery both ends and the voltage Uc at the load both ends；S4：Judge whether U and Uc ratio is more than predetermined threshold；S5：When U and Uc ratio is less than the predetermined threshold, the design variables are made to add 1；S6：Judge whether the design variables are more than default detection number, wherein the default detection number is more than 1；S7：The return to step S2 when the design variables are less than the default detection number；When the design variables are more than the default detection number, the charge switch of the battery is kept to disconnect.Battery pre-charging guard method provided by the invention and device can improve the accuracy of precharge protection act, and improve to reliability electric on battery.
Description
Technical field
The present invention relates to rechargeable battery field, and in particular to a kind of battery pre-charging guard method and device.
Background technology
Rechargeable battery is entered in horizontal high voltage power up, in order to protect the parts such as battery pack, electric machine controller and component
Do not damaged by instantaneous large-current, pre-charge circuit can be installed additional in high tension loop, pre-charge circuit includes pre-charge resistance Rl, pre-
Charge relay K2, positive contact device K0, high tension loop also include electric machine controller electric capacity C, power battery pack, negative pole relay
The parts such as K1.
The control logic of pre-charge circuit is as follows：In high pressure power up, preliminary filling controller for electric consumption is electric on detecting
After signal, control instruction closure K1 is first sent, then sends upper electricity instruction closure K2, electric machine controller electric capacity both end voltage Uc's
Numerical value can gradually rise over time.Now, power battery pack both ends in preliminary filling controller for electric consumption detection high tension loop
Voltage U, while electric machine controller electric capacity both end voltage Uc is detected, in set time T, when Uc meets in control device B programs
When the Uc and U of setting corresponding relation, that is, think that precharge is completed, subsequent control device B sends closure K0 instruction, so
After disconnect K2, make power battery pack complete power up.Such as in set time T, Uc fails to meet that the corresponding of setting is closed with U
System, then judge pre-charge process failure, and then quote precharge failure failure, prevent high tension loop from forming closed-loop path.
Following defect be present in existing guard method：In power up, there are other high voltage components may in high tension loop
Phenomenon is carried in the presence of band, thus may influence the whole power up time, so as to cause in set time T, Uc can not meet Uc
With U corresponding relation, so as to cause battery to go up electricity；Set time T time sheet as can scalar quantity, if numerical value set not
Rationally, can equally cause when precharge time meeting and exceeding T, Uc can not still meet Uc and U corresponding relation.Thus may be used
See, the accuracy rate of existing preliminary filling electric protection method is relatively low, easily causes erroneous judgement to prevent battery from normally upper electricity.
The content of the invention
Therefore, the technical problems to be solved by the invention are the accuracy for improving precharge protection act.
The present invention provides a kind of battery pre-charging guard method, comprises the following steps：
S1：Design variables are initialized, it is 0 to make the design variables；
S2：To loading into line precharge；
S3:Obtain the voltage U at battery both ends and the voltage Uc at the load both ends；
S4：Judge whether U and Uc ratio is more than predetermined threshold；
S5：When U and Uc ratio is less than the predetermined threshold, the design variables are made to add 1；
S6：Judge whether the design variables are more than default detection number, wherein the default detection number is more than 1；
S7：The return to step S2 when the design variables are less than the default detection number；When the design variables are more than
During the default detection number, the charge switch of the battery is kept to disconnect.
Preferably, in addition to：
S8：When U and Uc ratio is more than the predetermined threshold, the charge switch is closed, so that the battery is completed
Upper electricity.
Preferably, also include after step S5：
S9：Record U and Uc value and the described pair of duration loaded into line precharge.
Preferably, also include after step S9：
S10：Recorded U and Uc value is sent to remote control table and described is continued to loading into line precharge
Time；
S11：Receive the pre-charge process failure cause of the remote control table feedback.
Correspondingly, the present invention also provides a kind of battery pre-charging protection device, including：
Initialization unit, for initializing design variables, it is 0 to make the design variables；
Precharge unit, for loading into line precharge；
Acquiring unit, for obtaining the voltage U at battery both ends and the voltage Uc at the load both ends；
First comparing unit, for judging whether U and Uc ratio are more than predetermined threshold；
Fail count unit, for when U and Uc ratio are less than the predetermined threshold, making design variables add 1；
Second comparing unit, for judging whether the design variables are more than default detection number, the default detection time
Number is more than 1；
First execution unit, make the precharge unit work when the design variables are less than the default detection number
Make；When the design variables are more than the default detection number, the charge switch of the battery is kept to disconnect.
Preferably, in addition to：
Second execution unit, it is more than the predetermined threshold constantly for the ratio as U and Uc, closes the charge switch,
So that the battery completes upper electricity.
Preferably, in addition to：
Data record unit, for when U and Uc ratio are less than the predetermined threshold, recording U and Uc value and institute
State to loading the duration into line precharge.
Preferably, in addition to：
Data transmission unit, for sent to remote control table data record unit record U and Uc value with
And the described pair of duration loaded into line precharge；
Failure cause receiving unit, for receiving the pre-charge process failure cause of the remote control table feedback.
Preferably, the battery is that power battery pack in high voltage loop of electric automobile, the load are the electronic vapour
Electric machine controller electric capacity in car high tension loop.
Compared with prior art, battery pre-charging guard method provided in an embodiment of the present invention and device can pass through record
Precharge failure number, judge pre-charge process whether there is failure, it is possible thereby to improve be pre-charged protection act standard
True property, and improve to reliability electric on battery.
Brief description of the drawings
In order that present disclosure is more likely to be clearly understood, specific embodiment and combination below according to the present invention
Accompanying drawing, the present invention is further detailed explanation, wherein
Fig. 1 is the flow chart for the battery pre-charging guard method that first embodiment of the invention provides；
Fig. 2 is the structural representation for the battery pre-charging protection device that second embodiment of the invention provides.
Embodiment
First embodiment of the invention provides a kind of battery pre-charging guard method, and this method as shown in Figure 1 includes following step
Suddenly：
S1：Design variables are initialized, it is 0 to make the design variables, and the design variables are used to record the precharge frequency of failure.
S2：To loading into line precharge.
S3:Obtain the voltage U at battery both ends and the voltage Uc at the load both ends.
This programme can apply in the charging system on electric automobile or hybrid vehicle, it is preferable that the battery
It is that power battery pack in high voltage loop of electric automobile, the load are electric machine controllers in the high voltage loop of electric automobile
Electric capacity, this method can be performed by preliminary filling controller for electric consumption.
S4：Judge whether U and Uc ratio is more than predetermined threshold, held when U and Uc ratio is less than the predetermined threshold
Row S5-S7, S8 is performed when U and Uc ratio is more than the predetermined threshold.Above-mentioned U and Uc are proportionate relationships, it will usually in advance
Setting when that is, load capacitance both end voltage is the 90% of battery both end voltage, indicates preliminary filling when Uc=90%U
Electricity success, it should be understood by those skilled in the art that predetermined threshold can also higher such as Uc=95%U.
S5：Design variables is added 1, i.e., when precharge is judged as unsuccessfully, record the frequency of failure.
S6：Judge whether the design variables are more than default detection number, the default detection number is more than 1；
S7：The return to step S2 when the design variables are less than the default detection number；When the design variables are more than
During the default detection number, keep the charge switch of the battery to disconnect, that is, when judging that the process of precharge has failure, make
High-voltage charging loop can not form the loop of closure, and then prevent battery from going up electricity.Preferably, the value of the default detection number
For 2, that is, represent, when it is 3 times to be pre-charged the frequency of failure, to judge that the process of precharge has failure.
S8：The charge switch is closed, so that the battery completes upper electricity.
The battery pre-charging guard method provided according to embodiments of the present invention, time that can be failed by the precharge of record
Number, judge that pre-charge process whether there is failure, it is possible thereby to improve the accuracy of precharge protection act, and improve to battery
Upper electric reliability.
Preferably, the above method also includes after S5：
S9：Record U and Uc value and the described pair of duration loaded into line precharge.The data of this step record can
The reason for for analysis precharge failure, in order to exclude the failure in pre-charge process.
Further, also include after S9：
S10：To remote control table send recorded U and Uc value and it is described load into line precharge it is lasting when
Between；
S11：Receive the pre-charge process failure cause of the remote control table feedback.
Wherein, remote control table for example can be service platform, and above-mentioned preferred scheme can realize remote analysis preliminary filling
The purpose of electric process failure cause, the possibility for excluding preliminary filling electric fault can be improved.
Second embodiment of the invention provides a kind of battery pre-charging protection device, and the device as shown in Figure 2 includes：
Initialization unit 21, for initializing design variables, it is 0 to make design variables.
Precharge unit 22, for loading into line precharge；
Acquiring unit 23, for obtaining the voltage U at battery both ends and the voltage Uc at the load both ends；
First comparing unit 24, for judging whether U and Uc ratio are more than predetermined threshold；
Fail count unit 25, for when U and Uc ratio are less than the predetermined threshold, making design variables add 1；
Second comparing unit 26, for judging whether the design variables are more than default detection number, the default detection
Number is more than 1；
First execution unit 27, make the precharge unit 22 when the design variables are less than the default detection number
Work；When the design variables are more than the default detection number, the charge switch of the battery is kept to disconnect.
Second execution unit 28, it is more than the predetermined threshold constantly for the ratio as U and Uc, closes the charging and open
Close, so that the battery completes upper electricity.
Preferably, said apparatus can be in electric automobile or hybrid vehicle, and the battery is electric automobile high-voltage
Power battery pack, the load in loop are the electric machine controller electric capacity in the high voltage loop of electric automobile.
Battery pre-charging protection device provided in an embodiment of the present invention, the number that can be failed by the precharge of record,
Judge that pre-charge process whether there is failure, it is possible thereby to improve the accuracy of precharge protection act, and improve on battery
The reliability of electricity.
Preferably, said apparatus also includes：
Data record unit, for when U and Uc ratio are less than the predetermined threshold, recording U and Uc value and institute
State to loading the duration into line precharge.The data of data record unit record can be used for the original of analysis precharge failure
Cause, in order to exclude the failure in pre-charge process.
Further, said apparatus also includes：
Data transmission unit, for sent to remote control table data record unit record U and Uc value with
And the described pair of duration loaded into line precharge；
Failure cause receiving unit, for receiving the pre-charge process failure cause of the remote control table feedback.
Wherein, remote control table for example can be service platform, and above-mentioned preferred scheme can realize remote analysis preliminary filling
The purpose of electric process failure cause, the possibility for excluding preliminary filling electric fault can be improved.
Obviously, above-described embodiment is only intended to clearly illustrate example, and is not the restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
Claims (6)
1. a kind of battery pre-charging guard method, it is characterised in that comprise the following steps：
S1：Design variables are initialized, it is 0 to make the design variables；
S2：To loading into line precharge；
S3:Obtain the voltage U at battery both ends and the voltage Uc at the load both ends；
S4：Judge whether U and Uc ratio is more than predetermined threshold；
S5：When U and Uc ratio is less than the predetermined threshold, the design variables are made to add 1；
S6：Judge whether the design variables are more than default detection number, wherein the default detection number is more than 1；
S7：The return to step S2 when the design variables are less than the default detection number；Described in being more than when the design variables
During default detection number, the charge switch of the battery is kept to disconnect；
S9：Record U and Uc value and the described pair of duration loaded into line precharge；
S10：Send recorded U and Uc value to remote control table and described pair load into line precharge it is lasting when
Between；
S11：Receive the pre-charge process failure cause of the remote control table feedback.
2. according to the method for claim 1, it is characterised in that also include：
S8：When U and Uc ratio is more than the predetermined threshold, the charge switch is closed, so that the battery completes upper electricity.
3. method according to claim 1 or 2, it is characterised in that the battery is dynamic in high voltage loop of electric automobile
Power battery pack, the load are the electric machine controller electric capacity in the high voltage loop of electric automobile.
A kind of 4. battery pre-charging protection device, it is characterised in that including：
Initialization unit, for initializing design variables, it is 0 to make the design variables；
Precharge unit, for loading into line precharge；
Acquiring unit, for obtaining the voltage U at battery both ends and the voltage Uc at the load both ends；
First comparing unit, for judging whether U and Uc ratio are more than predetermined threshold；
Fail count unit, for when U and Uc ratio are less than the predetermined threshold, making design variables add 1；
Second comparing unit, for judging whether the design variables are more than default detection number, the default detection number is big
In 1；
First execution unit, the precharge unit is set to work when the design variables are less than the default detection number；When
When the design variables are more than the default detection number, the charge switch of the battery is kept to disconnect；
Data record unit, for when U and Uc ratio are less than the predetermined threshold, record U and Uc value and described right
Load the duration into line precharge；
Data transmission unit, value and the institute of U from the data record unit record to remote control table and Uc for sending
State to loading the duration into line precharge；
Failure cause receiving unit, for receiving the pre-charge process failure cause of the remote control table feedback.
5. device according to claim 4, it is characterised in that also include：
Second execution unit, it is more than the predetermined threshold constantly for the ratio as U and Uc, closes the charge switch, so that
The battery completes upper electricity.
6. the device according to claim 4 or 5, it is characterised in that the battery is dynamic in high voltage loop of electric automobile
Power battery pack, the load are the electric machine controller electric capacity in the high voltage loop of electric automobile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410798233.0A CN104868516B (en) | 2014-12-19 | 2014-12-19 | A kind of battery pre-charging guard method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410798233.0A CN104868516B (en) | 2014-12-19 | 2014-12-19 | A kind of battery pre-charging guard method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104868516A CN104868516A (en) | 2015-08-26 |
| CN104868516B true CN104868516B (en) | 2018-01-19 |
Family
ID=53914148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410798233.0A Expired - Fee Related CN104868516B (en) | 2014-12-19 | 2014-12-19 | A kind of battery pre-charging guard method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104868516B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106019163B (en) * | 2016-05-23 | 2018-11-27 | 重庆长安汽车股份有限公司 | A kind of power battery high tension loop self checking method, apparatus and system |
| CN106240376B (en) * | 2016-08-24 | 2018-08-07 | 东风襄阳旅行车有限公司 | Electric automobile high-voltage is pre-charged and main contactor misconnection protective device and method |
| CN108382234B (en) * | 2018-02-24 | 2019-11-08 | 广汽丰田汽车有限公司 | The control method of vehicle and its preliminary filling resistance, system and storage medium |
| CN109515248A (en) * | 2018-12-14 | 2019-03-26 | 蜂巢能源科技有限公司 | Electric vehicle pre-charging completes decision circuitry and pre-charging device |
| CN112039134A (en) * | 2019-06-03 | 2020-12-04 | 浙江吉智新能源汽车科技有限公司 | Method, device, equipment and terminal for controlling on-off of battery loop |
| CN112467814B (en) * | 2019-09-09 | 2022-07-26 | 宁波拓邦智能控制有限公司 | Battery pack discharge management method and system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1841880A (en) * | 2005-03-29 | 2006-10-04 | 三菱扶桑卡客车株式会社 | Voltage converting circuit for electric vehicles |
| CN202084968U (en) * | 2011-06-20 | 2011-12-21 | 上海恒动汽车电池有限公司 | Precharge circuit of power battery |
| CN102386655A (en) * | 2011-11-11 | 2012-03-21 | 郑州宇通客车股份有限公司 | Pre-charging control method for vehicle motor controller |
| CN104201747A (en) * | 2014-09-25 | 2014-12-10 | 北京现代汽车有限公司 | Method and device for processing slow charge open circuit fault of electromobile |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014057439A (en) * | 2012-09-13 | 2014-03-27 | Ricoh Co Ltd | Charger for capacitor and charging method |
-
2014
- 2014-12-19 CN CN201410798233.0A patent/CN104868516B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1841880A (en) * | 2005-03-29 | 2006-10-04 | 三菱扶桑卡客车株式会社 | Voltage converting circuit for electric vehicles |
| CN202084968U (en) * | 2011-06-20 | 2011-12-21 | 上海恒动汽车电池有限公司 | Precharge circuit of power battery |
| CN102386655A (en) * | 2011-11-11 | 2012-03-21 | 郑州宇通客车股份有限公司 | Pre-charging control method for vehicle motor controller |
| CN104201747A (en) * | 2014-09-25 | 2014-12-10 | 北京现代汽车有限公司 | Method and device for processing slow charge open circuit fault of electromobile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104868516A (en) | 2015-08-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104868516B (en) | A kind of battery pre-charging guard method and device | |
| CN104142466B (en) | A kind of AUTOMOTIVE RELAY contact closure condition detecting system and its detection method | |
| CN104391241B (en) | A kind of electrokinetic cell high-voltage relay state detection circuit and its method | |
| CN104442406B (en) | A kind of method for judging high-voltage relay adhesion | |
| KR20180122429A (en) | Power System | |
| CN103296715B (en) | Switch fault diagnostic device, battery pack and fault diagnosis method for switch | |
| CN110568366A (en) | Insulation circuit, battery pack leakage detection method and hardware detection method | |
| CN105548892A (en) | System, method and device of fault detection of battery system and electric vehicle | |
| CN105291875B (en) | A kind of electric vehicle rapid charging method | |
| CN104827910B (en) | The high-pressure system control method of electric automobile, system and the vehicle with it | |
| CN105453304A (en) | Battery control system, and vehicle control system | |
| US9404977B2 (en) | Bidirectional DC converter-based battery simulator | |
| CN107482741A (en) | Charge control method and system | |
| CN106662620A (en) | Battery state detection device, secondary battery system, program product, and battery state detection method | |
| CN104852415B (en) | Pre-charge process monitoring method and system | |
| CN112467814B (en) | Battery pack discharge management method and system | |
| CN104142475B (en) | A kind of insulation monitoring module evaluating apparatus and method | |
| CN102646960B (en) | A kind of battery major loop interface protection circuit and guard method | |
| CN104600761B (en) | The control method and the automobile with it of inverter electric capacity precharge | |
| CN108267665A (en) | Detection method, circuit, storage medium and the processor of busbar short-circuit | |
| CN102136611A (en) | Battery charging method and device | |
| CN114325412A (en) | Detection circuit, method and device | |
| KR101976873B1 (en) | Relay fusion detecting apparatus and method for high voltage battery system of vehicle | |
| CN206096349U (en) | A device for testing anti current rush performance of precharging resistor | |
| CN105514513B (en) | A kind of electrokinetic cell charge/discharge control method and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180510 Address after: No. 188, Miyun District, Miyun District, Beijing, Beijing Patentee after: Beijing treasure Car Co.,Ltd. Address before: 102206, Beijing, Shahe Town, Changping District Road, sand Yang Patentee before: BEIQI FOTON MOTOR Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180119 Termination date: 20211219 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |