CN103368229A - Ground electric vehicle battery diagnosis device and diagnostic method thereof - Google Patents
Ground electric vehicle battery diagnosis device and diagnostic method thereof Download PDFInfo
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- CN103368229A CN103368229A CN2013102794631A CN201310279463A CN103368229A CN 103368229 A CN103368229 A CN 103368229A CN 2013102794631 A CN2013102794631 A CN 2013102794631A CN 201310279463 A CN201310279463 A CN 201310279463A CN 103368229 A CN103368229 A CN 103368229A
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- 238000003745 diagnosis Methods 0.000 title claims abstract description 12
- 238000002405 diagnostic procedure Methods 0.000 title claims abstract description 11
- 238000012423 maintenance Methods 0.000 claims abstract description 15
- 238000012545 processing Methods 0.000 claims abstract description 3
- 239000011449 brick Substances 0.000 claims description 22
- 230000004044 response Effects 0.000 claims description 21
- 238000004891 communication Methods 0.000 claims description 19
- 238000005070 sampling Methods 0.000 claims description 16
- 238000001514 detection method Methods 0.000 claims description 15
- 238000013519 translation Methods 0.000 claims description 15
- 238000002955 isolation Methods 0.000 claims description 12
- 230000005055 memory storage Effects 0.000 claims description 6
- 230000006870 function Effects 0.000 abstract description 8
- 238000011156 evaluation Methods 0.000 abstract description 4
- 230000036541 health Effects 0.000 abstract description 2
- 238000007435 diagnostic evaluation Methods 0.000 abstract 1
- 230000014616 translation Effects 0.000 description 10
- 238000012360 testing method Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
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Abstract
The invention relates to a power battery diagnosis device, in particular to a ground electric vehicle battery diagnosis device and a diagnostic method thereof. The ground electric vehicle battery diagnosis device comprises a plurality of isolated power modules and a control module connected with an external computer; the isolated power modules are used for acquiring and inputting the voltage, current and temperature information of each battery in a battery pack into the control module; the control module is used for receiving and processing the information acquired by the isolated power modules, and the isolated power modules are electrically isolated from one another. The ground electric vehicle battery diagnosis device can independently diagnose or/and maintain each battery in the battery pack under the circumstance that the battery pack is not dismounted from a vehicle, thus providing each battery in the power battery pack of the electric vehicle with various diagnostic evaluation functions, such as charge state evaluation, health state evaluation and internal resistance evaluation, and a maintenance function for keeping the consistency of the batteries.
Description
Technical field
The present invention relates to a kind of electrokinetic cell diagnostic device, relate in particular to a kind of batteries of electric automobile ground diagnostic device and diagnostic method thereof.
Background technology
Along with the development of auto industry, electric automobile has obtained social attention and approval gradually with advantages such as its zero discharge, low noise and low use costs.The electric automobile power battery bag is formed by a plurality of single power battery connection in series-parallel usually, because the difference of manufacture craft and condition of work, the power brick generation otherness that in use each battery can be gradually causes the hydraulic performance decline of power brick; In addition, because electric automobile structure is compact, it is very high that battery is disassembled the cost of testing from electric automobile so that detect online or (with) each battery becomes a kind of demand in the battery maintenance bag.
Online detection maintenance mode is determining the electrical potential difference that has between each passage, and because the purpose that maintenance detects is exactly to detect each battery state separately, so need to independently operate each passage.The multichannel of existing Battery Diagnostic equipment mostly is the mode of the non-isolation of a plurality of passages, have no idea to satisfy the power brick on-line monitoring or (with) demand safeguarded; And move the equipment that a plurality of channels in series detect and only have a current loop, have no idea independently single battery to be charged or (with) discharge operation, these equipment all can not satisfy the online power brick of electric automobile to detect or (with) demand safeguarded; In addition because the relation of circuit topology, existing Battery Diagnostic equipment is in access battery and itself again in cold situation, the energy of meeting consuming cells itself, this shortcoming is so that battery must be after finishing detection, in the situation that equipment is still switched on, separate checkout equipment, can cause damage to battery.
Summary of the invention
The object of the invention is to provides a kind of batteries of electric automobile ground diagnostic device and diagnostic method thereof for the deficiencies in the prior art, this equipment can not uncarted in the next situation in power brick, independent for some in the power brick or certain several battery is diagnosed or (with) the maintenance operation, also can to the single battery that separates diagnose or (with) the maintenance operation.
To achieve these goals, the present invention adopts following technical scheme: a kind of batteries of electric automobile ground diagnostic device, and it comprises some isolated power modules and is connected a control module that is connected with outer computer; The isolated power module is used for gathering voltage, electric current and the temperature information of each battery of power brick, input control module; Control module is used for receiving information and the processing that the isolated power module gathers, and is electrical isolation between described some isolated power modules.
Further, each described battery connects one or more isolated power modules; Described battery is that voltage is less than the lithium-ion-power cell of 5V.
Further, described control module comprises external memory storage.
Further, be connected by communication bus between described isolated power module and the described control module.
Further, described isolated power module comprises insulating power supply module, power control module, sampling module, operation control module and isolated communication module; The insulating power supply module is used for civil power is converted to low-voltage DC and finishes electrical isolation, electric energy is provided for operation control module and power control module; Power control module is used for gathering voltage, electric current and the temperature information of each battery of power brick or battery is carried out the charge or discharge operation, and sampling module feeds back to the operation control module for detection of the operating state of power control module and with the information that detects; The operation control module connects described communication bus by the isolated communication module, receives the information from described control module, and the job information that feeds back himself is to control module.
Further, described isolated power module also comprises the energy consumable module, and the energy consumable module is connected with described power control module.
The diagnostic method of a kind of batteries of electric automobile ground diagnostic device comprises the steps:
A, control module send request message to the isolated power module;
B, isolated power module receive the request message from control module, and according to voltage, electric current and the temperature information of each battery in the content acquisition power brick of request message, the information exchange that gathers are crossed response message feed back to control module;
C, control module receive the response message from the isolated power module, and the response message that receives is saved in external memory storage and translation, and the response message after the translation is transferred to computer;
D, computer obtain user's demand information by man-machine interface, according to user's demand information, by the main body diagnosis maintenance algorithm of computer the response message that receives are diagnosed, and the instruction after the diagnosis is sent to control module;
E, control module receive from the instruction of computer and translation, and the command after the translation is arrived the isolated power module;
F, isolated power module receive from the instruction of control module and to battery carries out the charge or discharge operation, and the information that operation produces feeds back to computer after the control module translation.
Further, described step B is specially:
B1, insulating power supply module convert civil power low-voltage DC to and finish electrical isolation, electric energy are provided for operation control module and power control module;
B2, operation control module are passed through the reception of isolated communication module from the request message of control module, and request message is transferred to power control module;
B3, power control module receive the request message from the operation control module, and according to voltage, electric current and the temperature information of each battery in the content acquisition power brick of request message;
The acquisition state of B4, sampling module detection power control module is crossed response message with the information exchange that detects and is fed back to the operation control module;
B5, operation control module feed back to control module by the isolated communication module with response message.
Further, in the described step F, the concrete steps that battery is charged are:
F1, power control module receive the instruction from the operation control module, according to instruction battery are carried out charging operations, and part or all of the energy of civil power outputed to battery;
The charged state of F2, sampling module detection power control module also feeds back to the operation control module with the information that detects;
F3, operation control module compare judgement according to feedack and user's demand information, and real-time Modulating Power control module is to the charging rate of battery.
Further, in the described step F, to the concrete steps of battery discharge be:
F ⅰ, power control module receive the instruction of operation control module, and battery is carried out discharge operation, and part or all of the energy of battery outputed to the energy consumable module;
The discharge condition of F ⅱ, sampling module detection power control module also feeds back to the operation control module with the information that detects;
F ⅲ, operation control module compare judgement according to feedack and user's demand information, and real-time Modulating Power control module is to the velocity of discharge of battery.
Beneficial effect of the present invention is:
1, batteries of electric automobile of the present invention ground diagnostic device can be under power brick not be uncarted situation about coming, diagnose for each battery in the power brick independently or (with) the maintenance operation, thereby the maintenance function that the various diagnostic assessment functions such as state-of-charge assessment, health status assessment and internal resistance assessment is provided for each battery in the electric automobile power battery bag and keeps battery consistency.
2, in the situation of batteries of electric automobile of the present invention ground diagnostic device power down having connected battery itself, can consume battery power.Batteries of electric automobile of the present invention ground diagnostic device energy is so that battery just discharges and recharges operation to battery when allowing to discharge and recharge, other the time energy of consuming cells not.
3, all diagnosis and detection modules of batteries of electric automobile ground diagnostic device of the present invention all are independent of outside the car, and namely electric automobile is in running, and equipment is with motor racing, and remains on ground.Batteries of electric automobile of the present invention ground diagnostic device can be kept at the total data in the operating process, and can easily derive to set up the battery information storehouse.
4, batteries of electric automobile of the present invention ground diagnostic device can detect at battery and carry out in the charge and discharge process, voltage, electric current and the temperature information of the corresponding battery of each passage, thus the diagnostic functions such as state-of-charge assessment, health Evaluation, internal resistance assessment are provided.Batteries of electric automobile of the present invention ground diagnostic device can be by independent charging/discharging function and its diagnostic function of each passage, and balanced whole power brick is to reach the function of maintenance batteries of electric automobile bag.
5, the batteries of electric automobile of the present invention ground diagnostic device battery that can connect for each passage independently charge, discharge operation.Each passage of isolated power module of the present invention is isolated fully, so that the present invention can use battery of several passage accesses simultaneously, at this moment, the speed of battery charging and discharging will double, and shortens the required time of operation.
6, each passage of isolated power module of the present invention independently is provided with charge-discharge circuit, allow each passage to finish simultaneously different operations, when the battery maintenance consistency, can save time to greatest extent, improve simultaneously the utilance of the energy, more meet the original intention of electric automobile environmental protection.
Description of drawings:
Fig. 1 is functional block diagram of the present invention.
Fig. 2 is the hardware module figure of isolated power module among the present invention.
Reference numeral is:
10,11,12 ... 1N---battery
20,21,22 ... 2N---isolated power module
201---the insulating power supply module
202---power control module
203---the energy consumable module
204---sampling module
205---the operation control module
206---the isolated communication module
30---control module
40---computer.
Embodiment:
For the ease of those skilled in the art's understanding, the present invention is further illustrated below in conjunction with embodiment and accompanying drawing 1 ~ 2, and the content that execution mode is mentioned not is limitation of the invention.
See Fig. 1 ~ 2, a kind of batteries of electric automobile ground diagnostic device, it comprises some isolated power modules (20,21,22 ... 2N) with is connected a control module 30 that is connected with outer computer 40; Isolated power module (20,21,22 ... 2N) be used for gathering each battery of power brick (10,11,12 ... voltage 1N), electric current and temperature information, input control module 30; Control module 30 is used for receiving isolated power module (20,21,22 ... the information that 2N) gathers is also processed described some isolated power modules (20,21,22 ... it is electrical isolation 2N).
The electric automobile that the present invention relates to comprises pure electric automobile and adopts the hybrid vehicle of storage battery.
In the present embodiment, each described battery (10,11,12 ... 1N) connect one or more isolated power modules (20,21,22 ... 2N); Described battery (10,11,12 ... be that voltage is less than the lithium-ion-power cell of 5V 1N).The present invention can be independently for some in the power brick or certain several battery is diagnosed or (with) the maintenance operation, also can to the single battery that separates diagnose or (with) the maintenance operation.
In the present embodiment, described control module 30 comprises external memory storage.
In the present embodiment, described isolated power module (20,21,22 ... 2N) with between the described control module 30 be connected by communication bus.
Because each isolated power module (20,21,22 ... it is electrical isolation 2N), allow a plurality of isolated power modules (20,21,22 ... 2N) be linked into simultaneously same battery (10,11,12 ... 1N), namely be parallel to same battery (10,11,12 ... 1N), control by computer 40, these isolated power modules (20,21,22 ... 2N) can cooperate simultaneously, so that operand power reaches the several times of single passage, accelerate testing progress; And the present invention can ignore battery (10,11,12 fully ... electrical connection 1N) only needs it finally to be input to isolated power module (20,21,22 ... magnitude of voltage 2N) satisfies the working range of equipment of the present invention.
Batteries of electric automobile of the present invention ground diagnostic device not only can be tested each independently battery (10,11,12 ... 1N), can also test each battery (10,11,12 in the battery pack of getting up with various topology electrical connections ... 1N), and do not need to remove the electrical connection of itself.
Batteries of electric automobile of the present invention ground diagnostic device is no matter be linked into isolated power module (20,21,22 ... 2N) whether be battery pack or other voltage sources that cell or several battery series-parallel connections form, as long as it satisfies the present invention to the requirement of input voltage.
Many batteries of electric automobile of the present invention ground diagnostic devices also can in parallelly use to reach the purpose of the speed of speeding operations.
In the present embodiment, described isolated power module (20,21,22 ... 2N) comprise insulating power supply module 201, power control module 202, sampling module 204, operation control module 205 and isolated communication module 206; Insulating power supply module 201 is used for civil power is converted to low-voltage DC and finishes electrical isolation, electric energy is provided for operation control module 205 and power control module 202; Power control module 202 is used for gathering voltage, electric current and the temperature information of each battery of power brick or battery is carried out the charge or discharge operation, and sampling module 204 feeds back to operation control module 205 for detection of the operating state of power control module 202 and with the information that detects; Operation control module 205 connects described communication bus by isolated communication module 206, receives the information from described control module 30, and the job information that feeds back himself is to control module 30.
Isolated power module (20,21,22 ... 2N) be the corn module of batteries of electric automobile of the present invention ground diagnostic device, whole isolated power module (20,21,22 ... 2N) inner energy is by 201 isolation of insulating power supply module, and with isolated power module (20,21,22 ... all used isolating means when 2N) other outer parts connect, so whole isolated power module (20,21,22 ... 2N) isolate from electric.
In the present embodiment, described isolated power module also comprises energy consumable module 203, and energy consumable module 203 is connected with described power control module 202.Described energy consumable module 203 is light-emitting diode, power resistor or electric furnace heating wire.
The diagnostic method of a kind of batteries of electric automobile ground diagnostic device comprises the steps:
A, control module 30 are to isolated power module (20,21,22 ... 2N) send request message;
B, isolated power module (20,21,22 ... 2N) reception is from the request message of control module 30, and according to each battery (10,11,12 in the content acquisition power brick of request message ... voltage 1N), electric current and temperature information are crossed response message with the information exchange that gathers and are fed back to control module 30;
C, control module 30 receive from isolated power module (20,21,22 ... response message 2N) is saved in external memory storage and translation with the response message that receives, and the response message after the translation is transferred to computer 40;
D, computer 40 obtain user's demand information by man-machine interface, according to user's demand information, by the main body diagnosis maintenance algorithm of computer 40 response message that receives are diagnosed, and the instruction after the diagnosis is sent to control module 30;
E, control module 30 receive from the instruction of computer 40 and translation, and the command after the translation is arrived isolated power module (20,21,22 ... 2N);
F, isolated power module (20,21,22 ... 2N) receive from the instruction of control module 30 and to battery (10,11,12 ... 1N) carry out the charge or discharge operation, the information that operation produces feeds back to computer 40 after control module 30 translations.
In the present embodiment, described step B is specially:
B1, insulating power supply module 201 convert civil power low-voltage DC to and finish electrical isolation, electric energy are provided for operation control module 205 and power control module 202;
B2, operation control module 205 are passed through the request message that isolated communication module 206 receives from control module, and request message is transferred to power control module 202;
The request message that B3, power control module 202 receive from operation control module 205, and according to each battery (10,11,12 in the content acquisition power brick of request message ... voltage 1N), electric current and temperature information;
The acquisition state of B4, sampling module 204 detection power control modules 202 is crossed response message with the information exchange that detects and is fed back to operation control module 205;
B5, operation control module 205 feed back to control module 30 by isolated communication module 206 with response message.
In the present embodiment, in the described step F, the concrete steps that battery is charged are:
The instruction that F1, power control module 202 receives from operation control module 205, according to instruction to battery (10,11,12 ... 1N) carry out charging operations, part or all of the energy of civil power outputed to battery (10,11,12 ... 1N);
The charged state of F2, sampling module 204 detection power control modules 202 also feeds back to operation control module 205 with the information that detects;
F3, operation control module 205 compare judgement according to feedack and user's demand information, and the charging rate of real-time 202 pairs of batteries of Modulating Power control module.
In the present embodiment, in the described step F, to the concrete steps of battery discharge be:
F ⅰ, power control module 202 receive the instruction of operation control module 205, to battery (10,11,12 ... 1N) carry out discharge operation, with battery (10,11,12 ... part or all of energy 1N) outputs to energy consumable module 203;
The discharge condition of F ⅱ, sampling module 204 detection power control modules 202 also feeds back to operation control module 205 with the information that detects;
F ⅲ, operation control module 205 compare judgement according to feedack and user's demand information, and real-time 202 pairs of batteries of Modulating Power control module (10,11,12 ... velocity of discharge 1N).
Above-described embodiment is the better implementation of the present invention, and in addition, the present invention can also realize that any apparent replacement is all within protection scope of the present invention without departing from the inventive concept of the premise by alternate manner.
Claims (10)
1. batteries of electric automobile ground diagnostic device, it is characterized in that: it comprises some isolated power modules and is connected a control module that is connected with outer computer; The isolated power module is used for gathering voltage, electric current and the temperature information of each battery of power brick, input control module; Control module is used for receiving information and the processing that the isolated power module gathers, and is electrical isolation between described some isolated power modules.
2. a kind of batteries of electric automobile according to claim 1 ground diagnostic device, it is characterized in that: each described battery connects one or more isolated power modules; Described battery is that voltage is less than the lithium-ion-power cell of 5V.
3. a kind of batteries of electric automobile according to claim 1 ground diagnostic device, it is characterized in that: described control module comprises external memory storage.
4. a kind of batteries of electric automobile according to claim 1 ground diagnostic device is characterized in that: be connected by communication bus between described isolated power module and the described control module.
5. a kind of batteries of electric automobile according to claim 4 ground diagnostic device, it is characterized in that: described isolated power module comprises insulating power supply module, power control module, sampling module, operation control module and isolated communication module; The insulating power supply module is used for civil power is converted to low-voltage DC and finishes electrical isolation, electric energy is provided for operation control module and power control module; Power control module is used for gathering voltage, electric current and the temperature information of each battery of power brick or battery is carried out the charge or discharge operation, and sampling module feeds back to the operation control module for detection of the operating state of power control module and with the information that detects; The operation control module connects described communication bus by the isolated communication module, receives the information from described control module, and the job information that feeds back himself is to control module.
6. a kind of batteries of electric automobile according to claim 5 ground diagnostic device, it is characterized in that: described isolated power module also comprises the energy consumable module, the energy consumable module is connected with described power control module.
7. the diagnostic method of described a kind of batteries of electric automobile ground diagnostic device is characterized in that: comprise the steps: according to claim 1 ~ 6
A, control module send request message to the isolated power module;
B, isolated power module receive the request message from control module, and according to voltage, electric current and the temperature information of each battery in the content acquisition power brick of request message, the information exchange that gathers are crossed response message feed back to control module;
C, control module receive the response message from the isolated power module, and the response message that receives is saved in external memory storage and translation, and the response message after the translation is transferred to computer;
D, computer obtain user's demand information by man-machine interface, according to user's demand information, by the main body diagnosis maintenance algorithm of computer the response message that receives are diagnosed, and the instruction after the diagnosis is sent to control module;
E, control module receive from the instruction of computer and translation, and the command after the translation is arrived the isolated power module;
F, isolated power module receive from the instruction of control module and to battery carries out the charge or discharge operation, and the information that operation produces feeds back to computer after the control module translation.
8. the diagnostic method of a kind of batteries of electric automobile according to claim 7 ground diagnostic device, it is characterized in that: described step B is specially:
B1, insulating power supply module convert civil power low-voltage DC to and finish electrical isolation, electric energy are provided for operation control module and power control module;
B2, operation control module are passed through the reception of isolated communication module from the request message of control module, and request message is transferred to power control module;
B3, power control module receive the request message from the operation control module, and according to voltage, electric current and the temperature information of each battery in the content acquisition power brick of request message;
The acquisition state of B4, sampling module detection power control module is crossed response message with the information exchange that detects and is fed back to the operation control module;
B5, operation control module feed back to control module by the isolated communication module with response message.
9. the diagnostic method of a kind of batteries of electric automobile according to claim 7 ground diagnostic device is characterized in that: in the described step F, to the concrete steps of battery charging be:
F1, power control module receive the instruction from the operation control module, according to instruction battery are carried out charging operations, and part or all of the energy of civil power outputed to battery;
The charged state of F2, sampling module detection power control module also feeds back to the operation control module with the information that detects;
F3, operation control module compare judgement according to feedack and user's demand information, and real-time Modulating Power control module is to the charging rate of battery.
10. the diagnostic method of a kind of batteries of electric automobile according to claim 7 ground diagnostic device is characterized in that: in the described step F, to the concrete steps of battery discharge be:
F ⅰ, power control module receive the instruction of operation control module, and battery is carried out discharge operation, and part or all of the energy of battery outputed to the energy consumable module;
The discharge condition of F ⅱ, sampling module detection power control module also feeds back to the operation control module with the information that detects;
F ⅲ, operation control module compare judgement according to feedack and user's demand information, and real-time Modulating Power control module is to the velocity of discharge of battery.
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| CN201310279463.1A CN103368229B (en) | 2013-07-04 | 2013-07-04 | Ground electric vehicle battery diagnosis device and diagnostic method thereof |
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| CN104991201A (en) * | 2015-07-30 | 2015-10-21 | 国家电网公司 | Lithium ion battery cell consistency evaluation system and method |
| CN105158692A (en) * | 2015-07-30 | 2015-12-16 | 国家电网公司 | Lead-acid cell monomer consistency evaluation system and method |
| CN105206882A (en) * | 2015-08-25 | 2015-12-30 | 广州能源检测研究院 | Electric automobile power battery ground repair device |
| CN111768010A (en) * | 2019-03-15 | 2020-10-13 | 联合汽车电子有限公司 | User maintenance system of networked electric automobile and control method thereof |
| WO2024140475A1 (en) * | 2022-12-28 | 2024-07-04 | 华为技术有限公司 | Battery evaluation method and related apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104991201A (en) * | 2015-07-30 | 2015-10-21 | 国家电网公司 | Lithium ion battery cell consistency evaluation system and method |
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| WO2024140475A1 (en) * | 2022-12-28 | 2024-07-04 | 华为技术有限公司 | Battery evaluation method and related apparatus |
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