CN100369347C - Dynamic power supply managment system for electric vehicle - Google Patents
Dynamic power supply managment system for electric vehicle Download PDFInfo
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- CN100369347C CN100369347C CNB2003101124889A CN200310112488A CN100369347C CN 100369347 C CN100369347 C CN 100369347C CN B2003101124889 A CNB2003101124889 A CN B2003101124889A CN 200310112488 A CN200310112488 A CN 200310112488A CN 100369347 C CN100369347 C CN 100369347C
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- 238000012544 monitoring process Methods 0.000 claims abstract description 12
- 238000005070 sampling Methods 0.000 claims abstract description 9
- 238000004891 communication Methods 0.000 claims abstract description 8
- 238000001514 detection method Methods 0.000 claims description 28
- 238000007599 discharging Methods 0.000 claims description 6
- 230000006386 memory function Effects 0.000 claims description 3
- 210000000352 storage cell Anatomy 0.000 abstract 4
- 230000001681 protective effect Effects 0.000 abstract 1
- 238000007726 management method Methods 0.000 description 14
- 230000006870 function Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 208000032953 Device battery issue Diseases 0.000 description 1
- 229910018487 Ni—Cr Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000012360 testing method 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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- 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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
Abstract
The present invention discloses a dynamic power supply management system for an electric vehicle, which comprises a battery monitoring /control circuit and a charge and discharge circuit which are connected with a storage cell, wherein the battery monitoring /control circuit can monitor parameters of the storage cell, such as voltage, charge and discharge current, temperature, etc., in real time so as to send a proper protective control command to the charge and discharge circuit according to the parameters; the charge and discharge circuit is a charge and discharge circuit which combines series connection and equalization, and the charge and discharge circuit carries out series connection charge or equalizing charge for the storage cell according to a selection control demand which is formed by that the battery monitoring /control circuit automatically judges sampling battery status data; in addition, the battery monitoring /control circuit is connected with a complete vehicle management system ECU by a CAN communication bus, and the state information of the storage cell is displayed on an instrument board.
Description
[technical field]
The present invention relates to a kind of electric powered motor power-supply management system.
[background technology]
Along with The development in society and economy, the energy that fuel-engined vehicle brought and environmental issue cause the extensive concern of countries in the world gradually.Scarcity day by day because of natural resources especially petroleum resources, and discharge of automobile exhaust fumes and the environmental pollution that causes, the all planned development electric automobile in various countries is to seek new energy supply, equally, China also will develop the importance of electric automobile as the national energy strategy, and classify national 863 Program key project as.
In recent years, electric vehicle engineering has been obtained than much progress, as employing storage battery (plumbic acid/ni-mh/nickel chromium triangle pond etc.) power, developed at present and the bigger lithium rechargeable battery of use specific energy, to provide the sufficient energy to reach basic reasonably distance travelled needs, but apart from comprehensive practical problem that still has all many-sides of promoting, wherein Drive for EV power energy aspect is in urgent need to be improved: for storage battery, generally require its long service life, reliability height and security performance are good, for this reason, in normal use, for avoiding overcharging and the generation of situation such as overdischarge of storage battery, be the useful life that prolongs storage battery, reduce maintenance cost, need be by the discharge and recharge operation of suitable control with management of battery, however existing technology in this respect can't be satisfactory.In addition, the time requirement of electric powered motor power supply recharging can not oversize (generally can accept with interior at 6 hours).Be to reduce the charging and discharging of accumulator time, generally adopt the mode of high current charge-discharge, but easily like this cause battery performance to reduce even damage, produce some unsafe hidden danger, be necessary the charging and discharging of accumulator circuit is improved for this reason.
[summary of the invention]
Technical problem to be solved by this invention is, providing a kind of can monitor in real time to storage battery, and the electric powered motor power-supply management system that can suitably control and optionally carry out quick charge charge-discharge circuit.
For solving the problems of the technologies described above, electric powered motor power-supply management system of the present invention, comprise the charge-discharge circuit that storage battery is discharged and recharged, also comprise the battery detection control circuit, described battery detection control circuit connects storage battery and charge-discharge circuit respectively, described battery detection control circuit is monitored the voltage of storage battery in real time, charging and discharging currents and temperature parameter, and then charge-discharge circuit is made the protection control command according to these parameters, described charge-discharge circuit has serial connection charge mode and equalizing charge mode, automatically judge by the parameter of the storage battery of monitoring and the selection control command of making according to the battery detection control circuit, storage battery is carried out serial connection charge or equalizing charge, it is characterized in that: also comprise two kinds of charging current gears of size in the described serial connection charge mode; The descending switching of charging gear when described battery detection control circuit is judged serial connection charge automatically according to the parameter of the storage battery of monitoring.
As to improvement of the technical scheme, described battery detection control circuit can comprise: main control chip CPU, sample circuit, main contactor, wherein, sample circuit comprises that battery voltage sampling circuit, battery temperature sample circuit and battery current sample circuit main contactor then comprise and discharges and recharges control interface and the charging gear is selected control interface.
Described battery detection control circuit can also comprise that external data memory and program storage are with the growth data memory function.
In addition, the battery detection control circuit also is connected with vehicle management system ECU by the CAN communication bus, and shows the state information of storage battery on panel board.
Electric powered motor power-supply management system of the present invention has the following advantages:
1. the battery detection control circuit can be monitored in real time to parameters such as the voltage of battery and battery pack, temperature, charging current, discharging currents, and charge-discharge circuit made suitable control, put to prevent to overcharge, to cross, guarantee the safe in utilization of battery, the useful life of effectively improving battery.
2. charge-discharge circuit adopts two charging modes that serial connection charge combines with equalizing charge, can effectively shorten the recharging time, according to fail-safe analysis, can reach 50-60% in 30 minutes, can reach 98% in 6 hours.
3. the battery detection control circuit has the CAN communication function, can timely the battery status parameter be transferred to master control ECU, and show corresponding information at display instrument panel.
[description of drawings]
The present invention is further detailed explanation in conjunction with example with reference to the accompanying drawings:
Fig. 1 is the principle calcspar of electric powered motor power-supply management system of the present invention;
Fig. 2 is the principle calcspar of battery detection control circuit in the electric powered motor power-supply management system of the present invention.
[component symbol explanation]
Electric powered motor power-supply management system 1
Battery detection control circuit 3
Charge-discharge circuit 4
CAN communication bus 5
Vehicle management system ECU 6
Main control chip CPU 31
[embodiment]
See also Fig. 1, electric powered motor power-supply management system 1 of the present invention comprises: battery detection control circuit 3 and charge-discharge circuit 4, and the two all is connected with storage battery 2, wherein, battery detection control circuit 3 is voltage, charging and discharging currents and the temperature parameter of monitoring storage battery 2 in real time, and then according to these parameters charge-discharge circuit 4 is made suitable protection control command; And the selection control command that charge-discharge circuit 4 is also made by automatic judgement of parameter of the storage battery of monitoring according to battery detection control circuit 3 is carried out serial connection charge or equalizing charge to storage battery 2.In addition, battery detection control circuit 3 also is connected with vehicle management system ECU 6 by CAN communication bus 5, and can show the state information of storage battery 2 on panel board 7.
The principle calcspar of battery detection control circuit 3 as shown in Figure 2, it comprises main control chip CPU31, sampling channel 32, main contactor 33, wherein, main control chip CPU 31 adopts 16 single-chip microcomputer 80C196KC; Circuit such as the light MOS relay array that 32 of sampling channels comprise light MOS relay array that cell voltage is sampled, sample to battery temperature, the Hall element that battery current is sampled and differential amplification, low-pass filtering, sound insulation amplification, digital-to-analogue conversion, photoelectricity isolation are formed; Main contactor 33 then comprises and discharges and recharges control interface and the charging gear is selected control interface, and in addition, this battery detection control circuit 3 also is provided with external data memory 34 and program storage 35 with the growth data memory function.
In the operate as normal of this circuit, to the data sampling of battery relevant parameter, judge by main control chip CPU 31 by each circuit in the sampling channel 32.If overcurrent takes place, cross put, when overvoltage and temperature exceeding standard, it control main contactor 33, will cut off to the charge-discharge circuit 4 that storage battery 2 discharges and recharges, and simultaneously, issue vehicle management system ECU 6 by CAN communication bus 5, and display alarm is pointed out on panel board 7.When the protection factor disappearance of protected battery, then defencive function is cancelled automatically.
Charge-discharge circuit 4 includes two kinds of charging modes, and promptly serial connection charge mode and equalizing charge mode wherein, also comprise two kinds of charging current gears of size in the serial connection charge mode.When its work, these two kinds of charging modes combine, and both can effectively shorten the charging interval, can guarantee the charging fully of every batteries again.
When system charged, battery detection control circuit 3 was judged the switching (the electric current gear is descending) of charging gear when selecting different charging modes (serial connection charge/equalizing charge) and serial connection charge automatically according to the battery status data of sampling.Wherein, serial connection charge is realized big electric current (1C) quick charge by each charging station that is provided with.Equalizing charge is to the single battery charge independence, and originally with big electric current constant current charge, cell voltage reaches after the 4.2V, is full of (electric current be lower than C/20 promptly think be full of) with the fixed voltage constant voltage charge fully until battery again.This charging modes is little because of power, and is in light weight, can be plugged on directly charging of civil power online (220V/50HZ) easily, can be used as effectively replenishing of serial connection charge again.
Because battery detection control circuit 3 is monitoring in real time in the charge and discharge process of storage battery 2, so it also has following function:
1. to the capacity predict of battery
According to monitoring, can draw the residual capacity of battery pack in real time and be presented on the panel board 7, the prompting that simultaneously can also the capacity of display lowest limit need charge battery capacity;
2. to the self-checking function of battery
By data parameters such as voltage, electric current, temperature, whether operate as normal of battery can be analyzed, and System self-test can be carried out automatically, if any fault, send fault-signal, and cut off the electrical source of power switch.
3. fault pre-alarming
In the battery use, at any time write down the battery operation parameter, by certain Mathematical Modeling and judge the validity of battery, if battery failure is arranged in the discovery system or will lose efficacy or increase with other battery inconsistency, then be sent to car load master control ECU 6, and show fault at display instrument panel 7 by CAN communication bus 5.
4. external circuit error protection
When external circuit catastrophe failure occurred or lost efficacy, system can produce safeguard protection, made that the unlikely mistake of battery is put, overcharged, short circuit etc.
Native system has adopted two cover independent protection circuit (hardware protection/software protection) to carry out duplicate protection, has guaranteed the fail safe of system.And native system can satisfy the service condition of vehicle-mounted situation, the variation of involving vibrations, electronic jamming, high low temperature etc.
The foregoing description just embodies the preferred version of technical solution of the present invention, those skilled in the art to wherein some part some changes that may make all embodied principle of the present invention, belong within protection scope of the present invention.
Claims (4)
1. electric powered motor power-supply management system, comprise the charge-discharge circuit that storage battery is discharged and recharged, also comprise the battery detection control circuit, described battery detection control circuit connects storage battery and charge-discharge circuit respectively, described battery detection control circuit is monitored the voltage of storage battery in real time, charging and discharging currents and temperature parameter, and then charge-discharge circuit is made the protection control command according to these parameters, described charge-discharge circuit has serial connection charge mode and equalizing charge mode, automatically judge by the parameter of the storage battery of monitoring and the selection control command of making according to the battery detection control circuit, storage battery is carried out serial connection charge or equalizing charge, it is characterized in that: also comprise two kinds of charging current gears of size in the described serial connection charge mode; The descending switching of charging gear when described battery detection control circuit is judged serial connection charge automatically according to the parameter of the storage battery of monitoring.
2. electric powered motor power-supply management system as claimed in claim 1, it is characterized in that: described battery detection control circuit comprises: main control chip CPU, sample circuit, main contactor, wherein, sample circuit comprises that battery voltage sampling circuit, battery temperature sample circuit and battery current sample circuit main contactor then comprise and discharges and recharges control interface and the charging gear is selected control interface.
3. electric powered motor power-supply management system as claimed in claim 1 or 2 is characterized in that: described battery detection control circuit comprises that also external data memory and program storage are with the growth data memory function.
4. electric powered motor power-supply management system as claimed in claim 1 is characterized in that: described battery detection control circuit also is connected with vehicle management system ECU by the CAN communication bus, and shows the state information of storage battery on panel board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101124889A CN100369347C (en) | 2003-12-04 | 2003-12-04 | Dynamic power supply managment system for electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101124889A CN100369347C (en) | 2003-12-04 | 2003-12-04 | Dynamic power supply managment system for electric vehicle |
Publications (2)
| Publication Number | Publication Date |
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| CN1625014A CN1625014A (en) | 2005-06-08 |
| CN100369347C true CN100369347C (en) | 2008-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2003101124889A Expired - Lifetime CN100369347C (en) | 2003-12-04 | 2003-12-04 | Dynamic power supply managment system for electric vehicle |
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Families Citing this family (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2906637Y (en) * | 2006-01-25 | 2007-05-30 | 江显灿 | Battery power tester for electric bicycle |
| CN101109789B (en) * | 2006-12-15 | 2010-06-23 | 长安大学 | Intelligent analyzing test bench for performance of electric car storage battery |
| JP4586832B2 (en) * | 2007-08-10 | 2010-11-24 | トヨタ自動車株式会社 | Electric vehicle |
| CN101973211B (en) * | 2007-08-31 | 2012-10-03 | 奇瑞汽车股份有限公司 | Automobile power supply management system |
| CN101279597B (en) * | 2007-12-28 | 2010-04-21 | 奇瑞汽车股份有限公司 | Single power supply control system for automobile |
| CN101318489B (en) * | 2008-05-07 | 2011-09-21 | 中国科学院电工研究所 | Vehicle mounted battery management system control method |
| CN102439779B (en) | 2009-05-11 | 2015-03-25 | 马亨德拉雷瓦电动汽车私人有限公司 | Estimating and enhancing residual performance in an energy storage system |
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| CN101700772A (en) * | 2009-11-16 | 2010-05-05 | 北汽福田汽车股份有限公司 | Electric control method and system of automobile and engine controller |
| CN101728860B (en) * | 2010-01-28 | 2013-07-24 | 郑恩花 | Combined power supply |
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| WO2011148531A1 (en) * | 2010-05-25 | 2011-12-01 | 三菱電機株式会社 | Power information management apparatus, power information management system, and power information management method |
| CN102338861B (en) * | 2010-07-29 | 2014-01-15 | 上海汽车集团股份有限公司 | Method and system for evaluating performance of power supply system of automobile |
| CN101931253A (en) * | 2010-08-31 | 2010-12-29 | 重庆长安汽车股份有限公司 | CAN bus-based pure electric vehicle charging method and system |
| CN102013529B (en) * | 2010-09-16 | 2013-01-16 | 山东申普交通科技有限公司 | Vehicle power battery pack management system integrated into electric vehicle instrument and control method thereof |
| CN102004227B (en) * | 2010-11-02 | 2012-11-28 | 杭州电子科技大学 | High power battery detection circuit of electric vehicle |
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| WO2013097825A1 (en) * | 2011-12-31 | 2013-07-04 | 深圳市比亚迪汽车研发有限公司 | Electric automobile and discharging device thereof |
| CN102832676A (en) * | 2012-09-21 | 2012-12-19 | 重庆恒通电动客车动力系统有限公司 | Vehicle charging wireless control system and method |
| CN102842938B (en) * | 2012-09-28 | 2015-04-22 | 山东轻工业学院 | Terminal controlling unit of storage battery charging/discharging distributed control system |
| CN103915862B (en) * | 2012-12-31 | 2017-07-04 | 比亚迪股份有限公司 | A kind of cell managing device and battery management chip |
| CN105150963B (en) * | 2015-08-05 | 2017-12-08 | 东莞市钜大电子有限公司 | A kind of automobile power system of stabilization |
| CN106787031B (en) * | 2017-03-28 | 2019-03-29 | 湖南科技大学 | A kind of fast balancing charging apparatus of series-connected cell group |
| CN208646780U (en) * | 2017-12-15 | 2019-03-26 | 蔚来汽车有限公司 | Vehicle low-voltage power supply system |
| CN109212434A (en) * | 2018-11-13 | 2019-01-15 | 乐山有研稀土新材料有限公司 | A kind of high-frequency direct-current switch power supply current-voltage-humiture monitoring device |
| CN110509816A (en) * | 2019-10-28 | 2019-11-29 | 新誉轨道交通科技有限公司 | Lithium battery management system used for rail vehicle and working method |
| CN111959280A (en) * | 2020-08-31 | 2020-11-20 | 中车大连机车车辆有限公司 | Power battery safety protection system and safety protection method |
| CN112349988B (en) * | 2020-11-06 | 2021-10-26 | 宇能电气有限公司 | Vehicle storage battery online monitoring device and self-adaptive charging method |
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| CN1625014A (en) | 2005-06-08 |
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