CN103538482B - A kind of can power-assisted and reclaim the automobile start-stop system of braking energy - Google Patents
A kind of can power-assisted and reclaim the automobile start-stop system of braking energy Download PDFInfo
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- CN103538482B CN103538482B CN201310470334.0A CN201310470334A CN103538482B CN 103538482 B CN103538482 B CN 103538482B CN 201310470334 A CN201310470334 A CN 201310470334A CN 103538482 B CN103538482 B CN 103538482B
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- Prior art keywords
- electric machine
- machine controller
- buck converter
- stop system
- assisted
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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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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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
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
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Abstract
Can power-assisted and reclaim the automobile start-stop system of braking energy, belong to automotive controls field.First port of unidirectional buck converter is that output port is connected with storage battery and starter simultaneously; Second port of unidirectional buck converter is that input port is connected with the DC terminal of electric machine controller in super capacitor, BSG unit simultaneously; Motor in BSG unit is alternating current dynamo, is connected with the interchange end of electric machine controller; Motor is electronic/generating integrated motor be connected with driving engine by belt, and motor and electric machine controller form BSG unit, and electric machine controller can bi-directional electric energy.The present invention, except realizing start-stop function of engine, effectively can also provide the braking energy of power-assisted and recovery automobile, reduce system cost simultaneously.
Description
Technical field
The invention belongs to automotive controls scope, especially a kind of automobile start-stop system, particularly a kind of driving engine that can be provides power-assisted and the start stop system that can reclaim automobile brake energy.
Background technology
Along with the quick increase of recoverable amount, energy consumption and the emission problem of automotive engine become increasingly conspicuous.The companies such as German Bosch are proposed start stop system, by strengthening actuating motor torque magnification start speed of engine, realize idling automatic shutdown function, in order to reduce oil consumption and the discharge of waiting.
But existing start stop system function is also incomplete, still exist certain not enough, as: Fraquent start driving engine needs coupling High Performance storage battery, adds cost; Storage battery in short-term large current charge is limited in one's ability, is difficult to the braking energy effectively reclaiming vehicle; The electric system power that low-voltage storage battery is powered is little, effectively cannot provide power-assisted for driving engine.
Summary of the invention
The object of this invention is to provide a kind of recyclable braking energy, effectively can improve battery age and possess for driving engine provides the automobile start-stop system of power-assisted in short-term.
The present invention adopts following technical scheme:
Can power-assisted and reclaim the automobile start-stop system of braking energy, it is characterized in that: the BSG unit, super capacitor, unidirectional buck converter, starter, the start stop system controller that include storage battery, motor and electric machine controller composition; Wherein:
The output port of unidirectional buck converter is connected with storage battery and starter simultaneously; The input port of unidirectional buck converter is connected with the DC terminal of electric machine controller in super capacitor, BSG unit simultaneously; Motor in BSG unit is alternating current dynamo, is connected with the interchange end of electric machine controller; Motor is electronic/generating integrated motor be connected with driving engine by belt, and motor and electric machine controller form BSG unit, and electric machine controller can bi-directional electric energy; Start stop system controller is connected with electric machine controller and unidirectional buck converter respectively by bus.
Described unidirectional buck converter has by the step-down ability of its input port to output port direction, the input voltage V of its input port
cap=V
bat+ X, wherein V
batfor output port voltage, X is input port and output port voltage difference; Unidirectional buck converter also has non-decompression mode, now, and output port voltage V
batwith input port voltage V
capcan not influence each other, between two ports, noenergy exchanges.
During described system worked well, super-capacitor voltage equals input port voltage V
cap, battery tension equals output port voltage V
bat, namely super-capacitor voltage is higher than battery tension, and the two difference is input port and output port voltage difference X; Electric machine controller DC port output voltage range is 0 ~ V
bat+ X.
Start stop system controller determines the mode of operation of the two to respectively electric machine controller and unidirectional buck converter by sending controling instruction, and then realizes the traffic organising of energy in start stop system.
The working process of system of the present invention is as follows:
During engine cold starting, storage battery is that starter is powered, and unidirectional buck converter works in non-decompression mode, and between BSG unit and super capacitor, noenergy exchanges.
When batteries to store energy deficiency charges normal, super capacitor is battery charge by unidirectional buck converter; Between storage battery and starter, noenergy exchanges, and between starter and unidirectional buck converter, also noenergy exchanges.
When engine thermal is started, the electric machine controller of super capacitor in BSG unit is feeding electric motors, and motor is in electric operation pattern; Unidirectional buck converter works in non-decompression mode, and between storage battery and starter, noenergy exchanges.
To overtake other vehicles and under the operating mode such as climbing in short-term, automobile needs high pulling torque to drive, now, machine operation at motoring condition for driving engine provides power-assisted.The energy flow of power-assisted process and engine thermal starting process is to identical, but in power-assisted process, the rotating speed of motor is higher, horsepower output is larger, thus requires that the energy that super capacitor provides is more.
During automobile brake, BSG unit charges to super capacitor, and meanwhile, BSG unit charges a battery through unidirectional buck converter; Between storage battery and starter, noenergy exchanges, and between starter and unidirectional buck converter, also noenergy exchanges.
When super capacitor energy-storage deficiency charges normal, the machine operation in BSG unit, in generating state, is super capacitor charging through electric machine controller, until super-capacitor voltage reaches V
bat+ X; Unidirectional buck converter works in non-decompression mode, and between storage battery and starter, noenergy exchanges.
Beneficial effect of the present invention is as follows: super capacitor bears large current density Electricity Functional, storage battery except cold-start period without the need to heavy-current discharge, can prolonging service life of battery; Only use starter and storage battery heavy-current discharge when cold start, the common starter widely applied at present and storage battery can meet operating needs, contribute to reducing system cost; Super capacitor operating voltage range strengthens, and energy storage capacity is strong, can mate large-size machine, except realizing start-stop function of engine, effectively can also reclaim the braking energy of automobile, and can provide auxiliary power for driving engine; Required unidirectional buck converter capacity is less, is beneficial to reduction system cost.
Accompanying drawing explanation
Fig. 1 is can power-assisted and reclaim the automobile start-stop system constructional drawing of braking energy.
Fig. 2 is that engine cold starting process start stop system energy flow is to schematic diagram.
Fig. 3 is that super capacitor process of charging energy flow is to schematic diagram.
Fig. 4 is that battery charging process energy flow is to schematic diagram.
Fig. 5 is that engine thermal is started and power-assisted Process Energy flows to schematic diagram.
Fig. 6 is that braking procedure energy flow is to schematic diagram.
In figure: 1, storage battery; 2, BSG unit; 3, super capacitor; 4, unidirectional buck converter; 5, motor; 6, electric machine controller; 7, starter; 8, start stop system controller.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is further described:
Can power-assisted and reclaim the automobile start-stop system structure of braking energy as Fig. 1, be made up of storage battery 1, the BSG unit 2 comprising motor 5 and electric machine controller 6, super capacitor 3, unidirectional buck converter 4, starter 7, start stop system controller 8.
The output port of unidirectional buck converter 4 is connected with storage battery 1 and starter 7 simultaneously; The input port of unidirectional buck converter 4 is connected with the DC terminal of electric machine controller 6 in super capacitor 3, BSG unit 2 simultaneously; Motor 5 in BSG unit 2 is alternating current dynamo, is connected with the interchange end of electric machine controller 6; Start stop system controller 8 is connected with electric machine controller 6 and unidirectional buck converter 4 respectively by bus.
During system worked well, the voltage V of super capacitor 3
caphigher than the voltage V of storage battery 1
bat, the two difference is X, i.e. V
cap=V
bat+ X.Such as, for the storage battery 1 of 12V, the operating voltage of super capacitor 3 can be selected at 18V ~ 30V.
Unidirectional buck converter 4 has by the step-down ability of its input port to output port direction, and its input port voltage is V
bat+ X, output port voltage is V
bat.Unidirectional buck converter 4 also has non-decompression mode, now, and output port voltage V
batwith input port voltage V
capcan not influence each other, between two ports, noenergy exchanges.
Motor 5 is electronic/generating integrated motors (BSG) be connected with driving engine by belt, and electric machine controller 6 can bi-directional electric energy.Electric machine controller 6 DC port output voltage range is 0 ~ V
bat+ X.
Start stop system controller 8 determines the mode of operation of the two to respectively electric machine controller 6 and unidirectional buck converter 4 by sending controling instruction, and then realizes the traffic organising of energy in start stop system.
During engine cold starting, energy flow is to such as Fig. 2.Storage battery 1 is powered for starter 7, and unidirectional buck converter 4 works in non-decompression mode, and between BSG unit 2 and super capacitor 3, noenergy exchanges.
When super capacitor 3 energy storage deficiency charges normal, energy flow is to such as Fig. 3.Motor 5 in BSG unit 2 works in generating state, charges for super capacitor 3 through electric machine controller 6, until super capacitor 3 voltage reaches V
bat+ X; Unidirectional buck converter 4 works in non-decompression mode, and between storage battery 1 and starter 7, noenergy exchanges.
When storage battery 1 energy storage deficiency charges normal, energy flow is to such as Fig. 4.Super capacitor 3 is charged for storage battery 1 by unidirectional buck converter 4, and unidirectional buck converter 4 works in step-down state; Between storage battery 1 and starter 7, noenergy exchanges, and between starter 7 and unidirectional buck converter 4, also noenergy exchanges.
When engine thermal is started, energy flow is to such as Fig. 5.The electric machine controller 6 of super capacitor 3 in BSG unit 2 is powered for motor 5, and motor 5 is in electric operation pattern; Unidirectional buck converter 4 works in non-decompression mode, and between storage battery 1 and starter 7, noenergy exchanges.
During for driving engine power-assisted, energy flow to such as Fig. 5, with the energy flow of engine thermal starting process to identical.
During automobile brake, energy flow is to such as Fig. 6.Motor 5 in BSG unit 2 works in generating state, and electric machine controller 6 runs on rectification state; BSG unit 2 charges to super capacitor 3, and meanwhile, BSG unit 2 charges through unidirectional buck converter 4 accumulators 1, and unidirectional buck converter 4 works in step-down state; Between storage battery 1 and starter 7, noenergy exchanges, and between starter 7 and unidirectional buck converter 4, also noenergy exchanges.
Claims (5)
1. can power-assisted and reclaim the automobile start-stop system of braking energy, include BSG unit, super capacitor, unidirectional buck converter, starter, the start stop system controller of storage battery, motor and electric machine controller composition; It is characterized in that: the output port of unidirectional buck converter is connected with storage battery and starter simultaneously; The input port of unidirectional buck converter is connected with the DC terminal of electric machine controller in super capacitor, BSG unit simultaneously; Motor in BSG unit is alternating current dynamo, is connected with the interchange end of electric machine controller; Motor is electronic/generating integrated motor be connected with driving engine by belt, and motor and electric machine controller form BSG unit, and electric machine controller can bi-directional electric energy; Start stop system controller is connected with electric machine controller and unidirectional buck converter respectively by bus.
2. according to claim 1 can power-assisted and reclaim the automobile start-stop system of braking energy, it is characterized in that: described unidirectional buck converter has by the step-down ability of its input port to output port direction, its input port voltage V
cap=V
bat+ X, wherein V
batfor output port voltage, X is input port and output port voltage difference; Unidirectional buck converter also has non-decompression mode, now, and output port voltage V
batwith input port voltage V
capcan not influence each other, between two ports, noenergy exchanges.
3. according to claim 1 can power-assisted and reclaim the automobile start-stop system of braking energy, it is characterized in that: during described system worked well, super-capacitor voltage equals input port voltage V
cap, battery tension equals output port voltage V
bat, namely super-capacitor voltage is higher than battery tension, and the two difference is input port and output port voltage difference X; Electric machine controller DC port output voltage range is 0 ~ V
bat+ X.
4. according to claim 1 can power-assisted and reclaim the automobile start-stop system of braking energy, it is characterized in that: the mode of operation of the two determined respectively by described start stop system controller to electric machine controller and unidirectional buck converter by sending controling instruction, and then realize the traffic organising of energy in start stop system; During engine cold starting, storage battery is that starter is powered; When batteries to store energy is not enough, super capacitor is battery charge by unidirectional buck converter; When engine thermal starting and power-assisted, the electric machine controller of super capacitor in BSG unit is feeding electric motors; During automobile brake, BSG unit charges to super capacitor, and meanwhile, BSG unit charges a battery through unidirectional buck converter.
5. according to claim 1 can power-assisted and reclaim the automobile start-stop system of braking energy, it is characterized in that: when described super capacitor energy-storage deficiency charges normal, motor in BSG unit is super capacitor charging through electric machine controller, until super-capacitor voltage reaches V
bat+ X.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310470334.0A CN103538482B (en) | 2013-10-07 | 2013-10-07 | A kind of can power-assisted and reclaim the automobile start-stop system of braking energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310470334.0A CN103538482B (en) | 2013-10-07 | 2013-10-07 | A kind of can power-assisted and reclaim the automobile start-stop system of braking energy |
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| Publication Number | Publication Date |
|---|---|
| CN103538482A CN103538482A (en) | 2014-01-29 |
| CN103538482B true CN103538482B (en) | 2016-01-20 |
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| CN201310470334.0A Expired - Fee Related CN103538482B (en) | 2013-10-07 | 2013-10-07 | A kind of can power-assisted and reclaim the automobile start-stop system of braking energy |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105984347A (en) * | 2015-02-03 | 2016-10-05 | 上海海拉电子有限公司 | Start and stop control system for cars with regenerative braking |
| CN106812649A (en) * | 2016-12-30 | 2017-06-09 | 常州格力博有限公司 | Startor of internal combustion engine and its startup method |
| CN107226080B (en) * | 2017-05-04 | 2019-11-05 | 江苏大学 | The control method of hybrid power system in short-term based on super capacitor and starting motor of automobile |
| CN108270279A (en) * | 2018-03-25 | 2018-07-10 | 郑州蓝之夜电子科技有限公司 | Double-voltage electric power system suitable for commercial car and the automobile using the system |
| CN111634192A (en) * | 2020-05-21 | 2020-09-08 | 一汽奔腾轿车有限公司 | Vehicle dual-voltage energy recovery system and control method thereof |
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| CN102166961A (en) * | 2011-03-31 | 2011-08-31 | 北京汽车新能源汽车有限公司 | AT (automatic transmission)-based pure electric automobile brake energy recovery control system and method thereof |
| CN102398525A (en) * | 2010-09-13 | 2012-04-04 | 北汽福田汽车股份有限公司 | Brake energy recovery system and method of electric vehicle |
| CN102658802A (en) * | 2012-05-22 | 2012-09-12 | 无锡富洪科技有限公司 | Automobile idle speed start-stop system and hybrid power supply |
| CN102935798A (en) * | 2012-11-21 | 2013-02-20 | 吉林大学 | Hybrid electric vehicle power system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3342360B2 (en) * | 1997-09-02 | 2002-11-05 | 日野自動車株式会社 | Electric circuit of hybrid vehicle |
| KR100634605B1 (en) * | 2004-10-05 | 2006-10-16 | 현대자동차주식회사 | Regenerative braking control method of 42v belt driven vehicle |
| JP5659549B2 (en) * | 2010-04-27 | 2015-01-28 | 日本電気株式会社 | Power control system, power control method, control device, program, and server device |
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- 2013-10-07 CN CN201310470334.0A patent/CN103538482B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102398525A (en) * | 2010-09-13 | 2012-04-04 | 北汽福田汽车股份有限公司 | Brake energy recovery system and method of electric vehicle |
| CN102166961A (en) * | 2011-03-31 | 2011-08-31 | 北京汽车新能源汽车有限公司 | AT (automatic transmission)-based pure electric automobile brake energy recovery control system and method thereof |
| CN102658802A (en) * | 2012-05-22 | 2012-09-12 | 无锡富洪科技有限公司 | Automobile idle speed start-stop system and hybrid power supply |
| CN102935798A (en) * | 2012-11-21 | 2013-02-20 | 吉林大学 | Hybrid electric vehicle power system |
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| CN103538482A (en) | 2014-01-29 |
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Granted publication date: 20160120 Termination date: 20191007 |