CN103640493A - Range extending system of electric automobile - Google Patents
Range extending system of electric automobile Download PDFInfo
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- CN103640493A CN103640493A CN201310694120.1A CN201310694120A CN103640493A CN 103640493 A CN103640493 A CN 103640493A CN 201310694120 A CN201310694120 A CN 201310694120A CN 103640493 A CN103640493 A CN 103640493A
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- 238000000034 method Methods 0.000 claims description 10
- 238000012423 maintenance Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 7
- 238000005070 sampling Methods 0.000 claims description 7
- 230000005855 radiation Effects 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000006870 function Effects 0.000 description 14
- 238000005516 engineering process Methods 0.000 description 6
- 239000000178 monomer Substances 0.000 description 6
- 239000011449 brick Substances 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 238000003745 diagnosis Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 208000032953 Device battery issue Diseases 0.000 description 1
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009423 ventilation 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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- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a range extending system of an electric automobile. The range extending system of the electric automobile comprises a battery and a battery management unit, wherein a battery cathode is connected with a cathode high-voltage connector through a cathode contactor; a pre-charging resistor and a pre-charging contactor which are connected in series are connected with the cathode contactor in parallel and connected to a circuit between a battery anode and an anode high-voltage connector; and the pre-charging resistor, the pre-charging contactor and a control end of the cathode contactor are connected with the battery management unit. According to the range extending system of the electric automobile, modular design is adopted, the structure is simple, the performance is reliable, a range-extending requirement of a client can be met, the product compatibility is good simultaneously, the range-extending system can be replaced on vehicles with the same type, the system is manufactured by standard configuration components of a non-full vehicle, the manufacturing cost is reduced, the system can be obtained through leasing, purchasing or asking for help, and a direct-current power resource is used, so that the use cost can be effectively reduced; and besides, the range extending system can be used as fault rescue equipment for a battery system of the electric automobile.
Description
Technical field
The present invention relates to power battery system of electric vehicle technical field.
Background technology
Along with socioeconomic growing, energy demand further improves, the cry of new energy technology is more and more higher, at present in auto trade, further developing of pure electric automobile and Development of HEV Technology solved part energy problem, but also have many drawbacks, such as the hysteresis of battery technology, course continuation mileage is too short etc.For ensureing that a kind of portable power that pure electric automobile is born in the situation that there is battery failures and battery electric quantity deficiency increases journey system.
Current existing range extender system, as the disclosed fuel oil distance increasing unit for battery-driven car in patent CN102652090A, distance increasing unit is exactly a small-sized generator set in fact, driving engine, electrical generator, frequency converter and control system, consists of.In vehicle traveling process, can automatically start generating according to whole vehicle state, operating mode and battery electric quantity, auto-stop after charging, also can be carved when needed and be manually booted and shut down by chaufeur.The order of fuel oil distance increasing unit control system response controller of whole electric vehicle, the required voltage and current of output power drive system, realizes the stable control, the most economical working point control of driving engine of loading and unloading etc.But this type of distance increasing unit use cost is high, and the frequency of utilization of product is lower, fuel efficiency is low, thereby vehicle fuel distance increasing unit is produced mechanical energy and is produced automobile power by combustion in IC engine gasoline, mechanical energy drives electrical generator to convert alternating current to, and then AC rectification is become to direct current (DC), the complicated energy consumption of switching process is high, from causing product fuel efficiency low.
Summary of the invention
Technical matters to be solved by this invention be realize a kind of manufacture, use cost is low, service-strong distance increasing unit.
To achieve these goals, the technical solution used in the present invention is: a kind of range increasing system of electric vehicle, comprise battery and battery management unit, described battery cathode connects negative pole high-voltage connector through negative pole contactless switch, pre-charge resistance, the precharge contactless switch of series connection are in parallel with anodal contactless switch, and on anode and the circuit between anodal high-voltage connector described in access, the control end of described precharge contactless switch, anodal contactless switch and negative pole contactless switch is connected with described battery management unit.
In described cell circuit, be provided with wire fuse and manual maintenance switch.
Described battery cathode output circuit is provided with sampling resistor, and described sampling resistor is delivered to battery management unit by sampled signal.
Described range increasing system of electric vehicle is solidificated in housing, in described housing, is provided with temperature sensor, and described temperature sensor output temperature signal is to battery management unit.
In described range increasing system of electric vehicle, be provided with radiator fan, and battery is provided with radiating fin outward, in described housing, is provided with aerofoil, described housing two ends are provided with radiation air hole.
A range increasing system of electric vehicle management process, outgoing current and the battery temperature of battery management unit Real-time Collection battery, cut off feed circuit and alarm occur if surpass pre-set threshold value.
The temperature gathering when battery management unit surpasses the default temperature threshold values of opening fan, starts fan, and along with rotation speed of the fan is accelerated in the rising of temperature.
The invention has the advantages that native system structure adopts modular design, simple in structure, dependable performance, can meet client and increase journey demand, Products Compatibility is good simultaneously, can be at the enterprising line replacement of same model, system adopts non-car load standard configuration parts to make, and reduces manufacturing cost, the acquisition of can leasing or buy or require assistance, and use direct supply, also can effectively reduce use cost, and product also can be used as electric vehicle battery system fault rescue equipment in addition.
Accompanying drawing explanation
Below the content of every width accompanying drawing expression in specification sheets of the present invention and the mark in figure are briefly described:
Fig. 1 is distance increasing unit high pressure topological diagram;
Mark in above-mentioned figure is: 1, battery; 2, wire fuse; 3, manual maintenance switch; 4, sampling resistor; 5, negative pole contactless switch; 6, pre-charge resistance; 7, precharge contactless switch; 8, anodal contactless switch; 9, negative pole high-voltage connector; 10, anodal high-voltage connector.
The specific embodiment
Known referring to Fig. 1, range increasing system of electric vehicle comprises battery 1 and battery management unit, battery 1 provides stored energy function, battery 1 negative pole connects negative pole high-voltage connector 9 through negative pole contactless switch 5, negative pole contactless switch 5 is controlled and is increased journey system high pressure negative pole break-make, and negative pole high-voltage connector 9 externally connects for high voltage negative; Pre-charge resistance 6, the precharge contactless switch 7 of series connection are in parallel with anodal contactless switch 8, and access on the circuit between battery 1 positive pole and anodal high-voltage connector 1, anodal contactless switch 8 increases the anodal break-make of journey system high pressure for controlling, preliminary filling contactless switch 7 coordinates negative pole contactless switch 5 in start-up course, to carry out preliminary filling, preliminary filling resistance 6 limits large current while connecting startup and impacts, and high-voltage positive electrode connector 10 externally connects for high-voltage positive electrode.The control end of above-mentioned precharge contactless switch 7, anodal contactless switch 8 and negative pole contactless switch 5 is connected with battery management unit, realizes the control of battery management unit to battery.
In battery 1 loop, be provided with wire fuse 2 and manual maintenance switch 3, wire fuse 2 is for the protection of system or external loading short circuit, and manual maintenance switch 3 removes lower switch when safeguarding; guarantee safety of operation; improve Product Safety, when there is emergency situations, can cut off the electricity supply in time.In addition, on battery 1 negative pole output circuit, be provided with sampling resistor 4, sampling resistor 4 is delivered to battery management unit by sampled signal, so that battery management unit monitoring management power supply status.
For making range increasing system of electric vehicle there is rescue function, range increasing system of electric vehicle need be solidificated in housing, housing volume can not be excessive, in this external housing, be provided with temperature sensor, temperature sensor output temperature signal is to battery management unit, avoid the overheated and et out of order of battery 1, temperature when battery operated for reducing, in range increasing system of electric vehicle, be provided with radiator fan, and the outer radiating fin that is provided with of battery 1, in housing, be provided with aerofoil, and be provided with radiation air hole at housing two ends, by ventilation, process like this, temperature in the time of can effectively reducing battery 1 work, improve system stability, reliability.
Battery management unit is responsible for the charging and discharging management of whole system, and the radical function having is as follows:
Charging and discharging management: voltage acquisition, comprises monomer voltage and bus voltage; Monomer voltage collection is not put for protection battery cell does not overcharge or crosses; Total voltage collection is that power brick discharges and recharges safely, calculates SOC foundation is provided;
Current acquisition function; Current acquisition is the basic data of ampere-hour integral and calculating SOC, and meanwhile, current acquisition is that real-time monitoring battery bag discharges and recharges power;
High-voltage insulating resistance acquisition function; For guaranteeing that manned vehicle high-tension battery bag does not constitute a threat to personal safety, need to gather high-voltage insulating resistance;
High tension loop contactless switch is controlled and diagnosis function; The safety of high-pressure system discharges and recharges the break-make that just must control high-pressure system, and high tension loop contactless switch is controlled and diagnosis has realized the control of high-pressure system break-make and failure diagnosis;
SOC forecast function; By the high speed to electric current accurately sample, by the information such as total voltage, monomer voltage, temperature are comprehensively judged, realized the adaptive prediction of SOC, system can automatic learning and is revised important parameter
SOH forecast function; The SOH index decreased that how to delay battery on main research control policy, SOH is also an important referential data of SOC prediction, battery maintenance, also affects the course continuation mileage of car load simultaneously.
SOF management function; The charging and discharging capabilities of SOF management function prediction power brick current time maximum, for car load power distribution and charging ability provide foundation;
With car load communication and tactful interactive maintenance function; Realize alternately car load safe-discharge with car load communication and strategy, effectively brought into play battery performance, met car load dynamic property and economy;
System high pressure safety management function; Power brick is high voltage component, and high-voltage safety management has realized safe power-on and power-off and the charging safety of high-pressure system;
Charge Management function; Charge Management function has realized with Vehicular charger charges to power brick with fill device is safe and orderly soon;
Monomer balanced management function; The conformability of battery pack is a large technical barrier of restriction power battery pack widespread use always, and the research contents of balancing technique is for detecting and balance multiplex technique, and this technology can be good at having solved consistency problem, realizes online dynamic equalization in real time.This technology accomplishes can carry out energy transfer to the higher monomer of voltage in charging, guarantees that whole power brick obtains maximum energy supplement, in electric discharge, can carry out energy supplement to the monomer of low voltage, improves course continuation mileage.
Above-mentioned range increasing system of electric vehicle management process is as follows: outgoing current and the battery temperature of battery management unit Real-time Collection battery 1, cut off feed circuit and alarm occur if surpass pre-set threshold value.In addition the temperature gathering when battery management unit surpasses the default temperature threshold values of opening fan, starts fan, and along with rotation speed of the fan is accelerated in the rising of temperature.Can open fan according to working condition like this, and raise and improve radiating effect with temperature, while avoiding temperature lower, fan consuming cells 1 electric energy.
By reference to the accompanying drawings the present invention is exemplarily described above; obviously specific implementation of the present invention is not subject to the restrictions described above; as long as adopted the improvement of the various unsubstantialities that method of the present invention design and technical scheme carry out; or without improving, design of the present invention and technical scheme are directly applied to other occasion, all within protection scope of the present invention.
Claims (7)
1. a range increasing system of electric vehicle, comprise battery (1) and battery management unit, it is characterized in that: described battery (1) negative pole connects negative pole high-voltage connector (9) through negative pole contactless switch (5), pre-charge resistance (6), the precharge contactless switch (7) of series connection are in parallel with anodal contactless switch (8), and on the circuit between the positive pole of the battery (1) described in access and anodal high-voltage connector (1), the control end of described precharge contactless switch (7), anodal contactless switch (8) and negative pole contactless switch (5) is connected with described battery management unit.
2. range increasing system of electric vehicle according to claim 1, is characterized in that: in described battery (1) loop, be provided with wire fuse (2) and manual maintenance switch (3).
3. range increasing system of electric vehicle according to claim 2, is characterized in that: described battery (1) negative pole output circuit is provided with sampling resistor (4), and described sampling resistor (4) is delivered to battery management unit by sampled signal.
4. according to the range increasing system of electric vehicle described in any one in claim 1-3, it is characterized in that: described range increasing system of electric vehicle is solidificated in housing, in described housing, be provided with temperature sensor, described temperature sensor output temperature signal is to battery management unit.
5. range increasing system of electric vehicle according to claim 4, it is characterized in that: in described range increasing system of electric vehicle, be provided with radiator fan, and battery (1) is outer is provided with radiating fin, in described housing, is provided with aerofoil, and described housing two ends are provided with radiation air hole.
6. a range increasing system of electric vehicle management process, is characterized in that: outgoing current and the battery temperature of battery management unit Real-time Collection battery (1), cut off feed circuit and alarm occur if surpass pre-set threshold value.
7. range increasing system of electric vehicle management process according to claim 6, is characterized in that: the temperature gathering when battery management unit surpasses the default temperature threshold values of opening fan, starts fan, and along with rotation speed of the fan is accelerated in the rising of temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310694120.1A CN103640493A (en) | 2013-12-17 | 2013-12-17 | Range extending system of electric automobile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310694120.1A CN103640493A (en) | 2013-12-17 | 2013-12-17 | Range extending system of electric automobile |
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| CN103640493A true CN103640493A (en) | 2014-03-19 |
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| CN201310694120.1A Pending CN103640493A (en) | 2013-12-17 | 2013-12-17 | Range extending system of electric automobile |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104103865A (en) * | 2014-07-22 | 2014-10-15 | 合肥国轩高科动力能源股份公司 | Extended-range battery pack system of battery electric vehicle |
| CN105691226A (en) * | 2016-01-21 | 2016-06-22 | 中国第汽车股份有限公司 | Fault handling system and handling method of lithium ion power battery system |
| CN105751909A (en) * | 2016-02-02 | 2016-07-13 | 浙江吉利控股集团有限公司 | Movable portable electric car power battery pack and work method thereof |
| CN107599859A (en) * | 2017-09-01 | 2018-01-19 | 苏州达思灵新能源科技有限公司 | Electric power system, control method and the electric automobile of electric automobile |
| CN107636902A (en) * | 2015-05-18 | 2018-01-26 | 罗伯特·博世有限公司 | Modular plug connection component and can with electricity and/or with muscular strength driving, have modular power supply traveling instrument |
| CN112154096A (en) * | 2018-05-28 | 2020-12-29 | 斯堪尼亚商用车有限公司 | Method for controlling a vehicle assembled from a set of modules, control device, vehicle, computer program and computer-readable medium |
| CN114274831A (en) * | 2021-12-28 | 2022-04-05 | 徐州徐工新能源汽车有限公司 | Battery replacement assembly, control method thereof, battery replacement vehicle and battery replacement system |
| CN114347855A (en) * | 2022-03-18 | 2022-04-15 | 深圳摩吉智行科技有限公司 | Method and device for judging endurance mileage of electric two-wheeled vehicle based on SOC (System on chip) and SOH (sequence of events) |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104103865A (en) * | 2014-07-22 | 2014-10-15 | 合肥国轩高科动力能源股份公司 | Extended-range battery pack system of battery electric vehicle |
| CN104103865B (en) * | 2014-07-22 | 2016-05-18 | 合肥国轩高科动力能源有限公司 | The increasing journey battery pack system of pure electric automobile |
| CN107636902A (en) * | 2015-05-18 | 2018-01-26 | 罗伯特·博世有限公司 | Modular plug connection component and can with electricity and/or with muscular strength driving, have modular power supply traveling instrument |
| CN105691226A (en) * | 2016-01-21 | 2016-06-22 | 中国第汽车股份有限公司 | Fault handling system and handling method of lithium ion power battery system |
| CN105751909A (en) * | 2016-02-02 | 2016-07-13 | 浙江吉利控股集团有限公司 | Movable portable electric car power battery pack and work method thereof |
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| CN107599859A (en) * | 2017-09-01 | 2018-01-19 | 苏州达思灵新能源科技有限公司 | Electric power system, control method and the electric automobile of electric automobile |
| CN107599859B (en) * | 2017-09-01 | 2018-07-06 | 苏州达思灵新能源科技有限公司 | Electric power system, control method and the electric vehicle of electric vehicle |
| CN112154096A (en) * | 2018-05-28 | 2020-12-29 | 斯堪尼亚商用车有限公司 | Method for controlling a vehicle assembled from a set of modules, control device, vehicle, computer program and computer-readable medium |
| CN114274831A (en) * | 2021-12-28 | 2022-04-05 | 徐州徐工新能源汽车有限公司 | Battery replacement assembly, control method thereof, battery replacement vehicle and battery replacement system |
| CN114274831B (en) * | 2021-12-28 | 2024-03-15 | 徐州徐工新能源汽车有限公司 | Battery power conversion assembly and control method thereof, power conversion car and power conversion system |
| CN114347855A (en) * | 2022-03-18 | 2022-04-15 | 深圳摩吉智行科技有限公司 | Method and device for judging endurance mileage of electric two-wheeled vehicle based on SOC (System on chip) and SOH (sequence of events) |
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Owner name: CHERY NEW ENERGY AUTOMOBILE TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SAIC CHERY AUTOMOBILE CO., LTD. Effective date: 20150623 |
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Effective date of registration: 20150623 Address after: 241000 Yijiang, Anhui Province Hua Jin Road South Applicant after: New-energy automobile Technology Co., Ltd. of Cherry Address before: 241009 Wuhu economic and Technological Development Zone, Anhui, No. 8 Changchun Road Applicant before: Saic Chery Automobile Co., Ltd. |
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