CN203606472U - Detection device of electric locomotive storage battery residual capacity - Google Patents
Detection device of electric locomotive storage battery residual capacity Download PDFInfo
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- CN203606472U CN203606472U CN201320798282.5U CN201320798282U CN203606472U CN 203606472 U CN203606472 U CN 203606472U CN 201320798282 U CN201320798282 U CN 201320798282U CN 203606472 U CN203606472 U CN 203606472U
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- 230000003137 locomotive effect Effects 0.000 title claims abstract description 56
- 238000001514 detection method Methods 0.000 title abstract description 8
- 238000005070 sampling Methods 0.000 claims abstract description 36
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000032683 aging Effects 0.000 description 4
- 239000002253 acid Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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- 238000012986 modification Methods 0.000 description 1
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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
The utility model provides a detection device of electric locomotive storage battery residual capacity. The detection device comprises a current acquisition unit, a voltage acquisition unit, a storage battery sampling device and a storage battery controller. A corresponding relation between internal resistance values of storage battery single bodies in a storage battery pack within an internal resistance change interval and residual capacity of the storage battery single bodies is pre-stored in the storage battery controller. In the process that an electric locomotive operates and the storage battery pack discharges, voltage and current of each storage battery single body are acquired, the internal resistance value of each storage battery single body is obtained via calculation and residual capacity of all the storage battery single bodies is researched in the corresponding relation between the internal resistance values and residual capacity of the storage battery single bodies so that detection of electric locomotive storage battery residual capacity is realized, accurate data are provided for daily maintenance of the electric locomotive storage battery, situations of overcharge and over-discharge of the electric locomotive storage battery are avoided and the service life of the electric locomotive storage battery is prolonged.
Description
Technical field
The utility model relates to electric locomotive battery technology field, more particularly, relates to a kind of pick-up unit of electric locomotive remaining battery capacity.
Background technology
Electric locomotive accumulator is the important component part of electric locomotive DC power-supply system, it is as the back-up source of direct current supply, mainly undertaking electric locomotive falling under arciform state, while crossing phase-separating section or when pantograph off-line causes power failure in motion process, for startup, control system, supervisory system and the communication system of electric locomotive provide stable, safe and reliable power supply guarantee, guarantee the normal operation of visual plant in electric locomotive.
Conventional battery charging plant in electric locomotive, generally carries out equalizaing charge and floating charge management by the output characteristics control function of setting to electric locomotive accumulator.Because battery charging plant does not possess accumulator measuring ability, make in the time that electric locomotive remaining battery capacity is not known, battery charging plant is to electric locomotive charge in batteries, easily there is the situation of overcharging, or the situations such as overdischarge appear in electric locomotive accumulator, thereby cause be affected the serviceable life of electric locomotive accumulator.
Utility model content
In view of this, the utility model provides a kind of pick-up unit of electric locomotive remaining battery capacity, to realize the detection to electric locomotive remaining battery capacity, for the maintenance repair of electric locomotive accumulator provides accurate data, avoid the generation of electric locomotive overcharge of a battery and over-discharge situation, extend the serviceable life of electric locomotive accumulator.
A pick-up unit for electric locomotive remaining battery capacity, comprising:
Be connected with battery pack, for gathering the current acquisition unit of discharge current of described battery pack, described discharge current is that described battery pack produces in without electric phase-separating section operational process in electric locomotive;
Be connected with described battery pack, for gathering the voltage acquisition unit of voltage of the each single battery of described battery pack;
Be connected with described current acquisition unit, described voltage acquisition unit respectively, carry out analog-to-digital accumulator sampling apparatus for the voltage signal of the current signal to the output of described current acquisition unit, the output of described voltage acquisition unit;
Be connected with described accumulator sampling apparatus, be pre-stored with the battery controller of the corresponding relation of the residual capacity of the internal resistance value of each described single battery in internal resistance constant interval and described single battery.
Preferably, described voltage acquisition unit is multi-way switch circuit, each switch in described multi-way switch circuit is connected with a described single battery in described battery pack respectively, the conducting in the time gathering the voltage of the described single battery being connected with described switch of each described switch.
Preferably, integrated sampling hold circuit and the analog to digital converter of being provided with in described accumulator sampling apparatus;
Being connected with described current acquisition unit, described analog to digital converter respectively of described sampling hold circuit, described analog to digital converter is connected with described battery controller, described sampling hold circuit, during described analog to digital converter is to the current signal analog to digital conversion of described current acquisition unit output, keeps the current signal of described current acquisition unit output constant.
Preferably, described voltage acquisition unit is arranged in described accumulator sampling apparatus.
Preferably, described current acquisition unit is current sensor.
Preferably, described current transformer is set in the discharge paths of described battery pack.
Preferably, also comprise: display unit;
Described display unit is connected with described battery controller, for showing the residual capacity of each described single battery.
Preferably, the each described single battery in described battery pack is connected in series.
Preferably, also comprise: temperature collecting cell, described temperature collecting cell is connected with described accumulator sampling apparatus, for gathering the environment temperature of described battery pack.
Preferably, described temperature collecting cell is temperature sensor.
Can find out from above-mentioned technical scheme, the utility model provides a kind of pick-up unit of electric locomotive remaining battery capacity, comprise current acquisition unit, voltage acquisition unit, accumulator sampling apparatus and battery controller, wherein, in battery controller, be pre-stored with the corresponding relation of the residual capacity of the internal resistance value of each described single battery in internal resistance constant interval and described single battery.The utility model is in electric locomotive operation and battery pack discharge process, voltage and current to each single battery gathers, the internal resistance value of the each single battery then calculating, and in the corresponding relation of internal resistance value and single battery residual capacity, find the residual capacity of each single battery, thereby realize the detection to electric locomotive remaining battery capacity, for the maintenance repair of electric locomotive accumulator provides accurate data, avoid the generation of electric locomotive overcharge of a battery and over-discharge situation, extend the serviceable life of electric locomotive accumulator.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the pick-up unit of the disclosed a kind of electric locomotive remaining battery capacity of the utility model embodiment;
Fig. 2 is the structural representation of the pick-up unit of the disclosed another kind of electric locomotive remaining battery capacity of the utility model embodiment;
Fig. 3 is the schematic diagram of the disclosed a kind of battery tension corresponding with Fig. 2 sampling of the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Referring to Fig. 1, the utility model embodiment discloses a kind of structural representation of pick-up unit of electric locomotive remaining battery capacity, and pick-up unit comprises: current acquisition unit 11, voltage acquisition unit 12, accumulator sampling apparatus 13 and battery controller 14;
Wherein:
Current acquisition unit 11 is connected with battery pack 01, for gathering the discharge current of battery pack 01, wherein, described discharge current is that battery pack 01 produces in electric locomotive operational process, now, electric locomotive passes through without electric phase-separating section, the stage of battery pack 01 in natural discharge condition.
The utility model is in electric locomotive passes through without electric phase-separating section operation and battery pack 01 discharge process, voltage and current to each single battery gathers, the internal resistance value of the each single battery then calculating, and in the corresponding relation of internal resistance value and single battery residual capacity, find the residual capacity of each single battery, thereby realize the detection to electric locomotive remaining battery capacity, for the maintenance repair of electric locomotive accumulator provides accurate data, avoid the generation of electric locomotive overcharge of a battery and over-discharge situation, extend the serviceable life of electric locomotive accumulator.
Meanwhile, can also judge that whether this single battery is aging according to the residual capacity of single battery, to change in time, thereby effectively reduce the unnecessary loss bringing because single battery is aging.
Preferably, the battery pack 01 in the present embodiment can be valve-controlled sealed lead-acid battery (Valve Regulated Lead Acid Battery, VRLA), is called again maintenance-free lead accumulator or VRLA accumulator.
It should be noted is that, voltage acquisition unit 12 can be arranged in accumulator sampling apparatus 13.
Current acquisition unit 11 can be current sensor.
Single battery in battery pack 01 is connected in series, and the model of single battery is identical.
Referring to Fig. 2, the utility model embodiment discloses the structural representation of the pick-up unit of another kind of electric locomotive remaining battery capacity, and pick-up unit comprises: current acquisition unit 21, multi-way switch circuit 22, accumulator sampling apparatus 23 and battery controller 24;
In the present embodiment, multi-way switch circuit 22 is arranged in accumulator sampling apparatus 23, integrated sampling hold circuit 25 and the analog to digital converter 26 of being provided with of accumulator sampling apparatus 23;
Concrete, in the each single battery 004(Fig. 2 in battery charging plant 002 and battery pack 001, four single batteries 004 are only shown) be connected in series, think that each single battery 004 charges;
The direction of the charging current I of battery pack 001 to the load 003 in electric locomotive is referring to Fig. 2.
Each switch in multi-way switch circuit 22 is connected respectively (being specifically connected with the accumulator plate of single battery 004) with a single battery 004 in battery pack 001, the conducting in the time gathering the voltage of the single battery 004 being connected with this switch of each switch.
The output terminal of multi-way switch circuit 22 is connected with the input end of analog to digital converter 26, and multi-way switch circuit 22 sends the voltage signal of collection to analog to digital converter 26.
Sampling hold circuit 25 is connected with current acquisition unit 21, analog to digital converter 26 respectively, sampling hold circuit 25 for the current signal analog to digital conversion of current acquisition unit 21 being exported at analog to digital converter 26 during, the current signal that keeps current acquisition unit 21 to export is constant, thereby avoid causing because of the variation of load 003 variation of current signal, guaranteed that the collection of current signal and the collection of multi-way switch circuit 22 voltage signals are synchronous.
The output terminal of analog to digital converter 26 is connected with battery controller 24, for current signal that the current signal analog-to-digital conversion that current acquisition unit 21 is exported is obtained, and the voltage signal that the voltage signal analog-to-digital conversion exported of multi-way switch circuit 22 obtains sends battery controller 24 to.
Wherein, accumulator sampling apparatus 23 can pass through CAN(Controller Area Network, controller local area network with battery controller 24) bus connection.
In battery controller 24, the corresponding relation of the residual capacity of the internal resistance value of each single battery 004 and each single battery 004 can be depicted as internal resistance value-residual capacity curve.
The utility model is in electric locomotive passes through without electric phase-separating section operation and battery pack 001 discharge process, voltage and current to each single battery 004 gathers, the internal resistance value of the each single battery 004 then calculating, and in the corresponding relation of the residual capacity of internal resistance value and single battery 004, find the residual capacity of each single battery 004, thereby realize the detection to electric locomotive remaining battery capacity, for the maintenance repair of electric locomotive accumulator provides accurate data, avoid the generation of electric locomotive overcharge of a battery and over-discharge situation, extend the serviceable life of electric locomotive accumulator.
Meanwhile, can also judge that whether this single battery 004 is aging according to the residual capacity of single battery 004, to change in time, thereby effectively reduce the unnecessary loss bringing because single battery 004 is aging.
It should be noted is that, in the present embodiment, current acquisition unit 21 can be current transformer.
For further optimizing above-described embodiment, can also comprise: temperature collecting cell 27;
Temperature collecting cell 27 is connected with accumulator sampling apparatus 23, specifically be connected with the analog to digital converter 26 in accumulator sampling apparatus 23, temperature collecting cell 27 sends the environment temperature of the battery pack of collection 001 to analog to digital converter 26 and carries out analog to digital conversion, analog to digital converter 26 sends the environment temperature after analog to digital conversion to battery controller 24, battery controller 24 carries out temperature correction for the internal resistance value of the each single battery 004 calculating, and obtains the dynamic internal resistance of a single battery 004.
Temperature collecting cell 27 can be temperature sensor, and in the time that reality is used, temperature collecting cell 27 can be arranged on a single battery 004.
For further optimizing above-described embodiment, can also comprise: display unit 28, display unit 28 is connected with battery controller 24, for showing the residual capacity of each single battery 004.
Referring to Fig. 3, the utility model embodiment discloses a kind of schematic diagram of the battery tension corresponding with Fig. 2 sampling, battery charging plant 002 is connected in series with the each single battery 004 in battery pack 001, each single battery 004 is connected with multi-way switch circuit 22, multi-way switch circuit 22 is connected with battery controller 24 by analog to digital converter 26, and the direction of the charging current I of battery pack 001 to the load 003 in electric locomotive is referring to Fig. 3.Battery tension sampling principle, specifically referring to above-described embodiment, repeats no more herein.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment, between each embodiment identical similar part mutually referring to.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the utility model.To be apparent for those skilled in the art to the multiple modification of these embodiment, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a pick-up unit for electric locomotive remaining battery capacity, is characterized in that, comprising:
Be connected with battery pack, for gathering the current acquisition unit of discharge current of described battery pack, described discharge current is that described battery pack produces in without electric phase-separating section operational process in electric locomotive;
Be connected with described battery pack, for gathering the voltage acquisition unit of voltage of the each single battery of described battery pack;
Be connected with described current acquisition unit, described voltage acquisition unit respectively, carry out analog-to-digital accumulator sampling apparatus for the voltage signal of the current signal to the output of described current acquisition unit, the output of described voltage acquisition unit;
Be connected with described accumulator sampling apparatus, be pre-stored with the battery controller of the corresponding relation of the residual capacity of the internal resistance value of described single battery in internal resistance constant interval and described single battery.
2. pick-up unit according to claim 1, it is characterized in that, described voltage acquisition unit is multi-way switch circuit, each switch in described multi-way switch circuit is connected with a described single battery in described battery pack respectively, the conducting in the time gathering the voltage of the described single battery being connected with described switch of each described switch.
3. pick-up unit according to claim 1, is characterized in that, integrated sampling hold circuit and the analog to digital converter of being provided with in described accumulator sampling apparatus;
Being connected with described current acquisition unit, described analog to digital converter respectively of described sampling hold circuit, described analog to digital converter is connected with described battery controller, described sampling hold circuit, during described analog to digital converter is to the current signal analog to digital conversion of described current acquisition unit output, keeps the current signal of described current acquisition unit output constant.
4. pick-up unit according to claim 1, is characterized in that, described voltage acquisition unit is arranged in described accumulator sampling apparatus.
5. pick-up unit according to claim 1, is characterized in that, described current acquisition unit is current sensor.
6. pick-up unit according to claim 5, is characterized in that, described current transformer is set in the discharge paths of described battery pack.
7. pick-up unit according to claim 1, is characterized in that, also comprises: display unit;
Described display unit is connected with described battery controller, for showing the residual capacity of each described single battery.
8. pick-up unit according to claim 1, is characterized in that, the each described single battery in described battery pack is connected in series.
9. pick-up unit according to claim 1, is characterized in that, also comprises: temperature collecting cell, described temperature collecting cell is connected with described accumulator sampling apparatus, for gathering the environment temperature of described battery pack.
10. pick-up unit according to claim 9, is characterized in that, described temperature collecting cell is temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320798282.5U CN203606472U (en) | 2013-12-06 | 2013-12-06 | Detection device of electric locomotive storage battery residual capacity |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320798282.5U CN203606472U (en) | 2013-12-06 | 2013-12-06 | Detection device of electric locomotive storage battery residual capacity |
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| CN203606472U true CN203606472U (en) | 2014-05-21 |
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| CN201320798282.5U Expired - Lifetime CN203606472U (en) | 2013-12-06 | 2013-12-06 | Detection device of electric locomotive storage battery residual capacity |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104991196A (en) * | 2015-06-30 | 2015-10-21 | 上海斐讯数据通信技术有限公司 | Battery power measurement method |
| CN111521945A (en) * | 2020-05-06 | 2020-08-11 | 江苏美的清洁电器股份有限公司 | Battery health state detection method and device, electronic equipment and storage medium |
-
2013
- 2013-12-06 CN CN201320798282.5U patent/CN203606472U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104991196A (en) * | 2015-06-30 | 2015-10-21 | 上海斐讯数据通信技术有限公司 | Battery power measurement method |
| CN111521945A (en) * | 2020-05-06 | 2020-08-11 | 江苏美的清洁电器股份有限公司 | Battery health state detection method and device, electronic equipment and storage medium |
| CN111521945B (en) * | 2020-05-06 | 2022-04-08 | 美智纵横科技有限责任公司 | Battery health state detection method and device, electronic equipment and storage medium |
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Granted publication date: 20140521 |