CN103770654A - Super-capacitor assisted starting device of electric automobile - Google Patents
Super-capacitor assisted starting device of electric automobile Download PDFInfo
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- CN103770654A CN103770654A CN201210398245.5A CN201210398245A CN103770654A CN 103770654 A CN103770654 A CN 103770654A CN 201210398245 A CN201210398245 A CN 201210398245A CN 103770654 A CN103770654 A CN 103770654A
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- battery
- super capacitor
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- capacitor
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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)
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Abstract
The invention discloses a starting device with a super-capacitor to assist the battery when the electric automobile is started. A two-way DC-DC (Direct Current to Direct Current) conversion device is added between a power battery and a motor drive circuit; when the electric automobile is in the stop or low-speed running state, the output current of the battery is low and the two-way DC-DC conversion device charges the super-capacitor at this moment; when the electric automobile accelerates after start, the drive circuit is supplied with power with the assistance of the super-capacitor so that the torque is increased, and as a result, the acceleration of the automobile is increased and then the automobile is more powerful in climbing. When the super-capacitor is charged and when the super-capacitor is applied to assisting with power supply are controlled by the sampled value of the driving current in combination with the predetermined maximum load value of the battery.
Description
Technical field
While the present invention relates to a kind of electronlmobil startup, the device being started by super capacitor boosting battery, thus can accelerate the startup of electronlmobil.
Background technology
The current city automobile of riding instead of walk is substantially all take gasoline as power.The oil consumption that automotive engine travels in city substantially exceeds the test oil consumption under ideal conditions, and its basic reason is that automobile brakes frequently, waits for traffic lights, preheating etc. in the driving process of city.There is not the problems such as idling oil consumption in electronlmobil, and brake energy can reclaim, and therefore can greatly reduce the consumption to the energy.And the startup of known electronlmobil only relies in start battery, the especially situation take lead-acid storage battery as electrokinetic cell, electronlmobil starts slowly, affects traffic and dumb; When start battery or climbing, load is heavy, the as easy as rolling off a log battery premature aging that causes.Have at present and utilize the device of brake recuperated energy to super capacitor, but recuperated energy is limited, if brake does not just have auxiliary energy for startup or climbing etc.
Summary of the invention
The present invention be exactly to solve electronlmobil especially the electronlmobil take lead-acid storage battery as electrokinetic cell start problem slowly, can partly improve even in the process of moving the speed of a motor vehicle; Simultaneously can delay the aging of lead-acid battery, extending battery life, the present invention is also applicable to use other batteries (as lithium cell etc.), the especially not strong battery pack of low capacity, load-carrying capacity.
The technical scheme that head it off of the present invention adopts is: between electrokinetic cell and motor-drive circuit, add DC-DC converting means, when under the state of electronlmobil in stopping or travelling at a slow speed, battery outgoing current is little, and at this moment DC-DC device is the charging of super capacitor group; In the time of electronlmobil Acceleration of starting or climbing, assisted to drive circuitry by super capacitor, thereby increase torsion, pickup is increased, stronger when climbing.Also add the technology of current limliting and wide-voltage range DC conversion for realizing this function.
The invention has the beneficial effects as follows, can increase power, can extend again battery, electronlmobil primary circuit is changed not quite, cost is low, easily realization.If super capacitor is directly parallel on battery, after super capacitor voltage is lower than cell pressure, just can not provide energy, and main points of the present invention are super capacitors during lower than cell pressure, by boost DC-DC converting means, a large amount of dump energies that store on super capacitor are discharged.Because power increases science, can increase the volume and weight of electronlmobil, be particularly useful for that the speed of a motor vehicle under city environment is slow, the road conditions of frequent start-stop.Thereby make electronlmobil march toward low cost, practical epoch with realistic meaning.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further described.
Accompanying drawing is schematic circuit diagram of the present invention, comprises battery, driving, bi-directional DC-DC, current limliting, drive current sampling.
The specific embodiment
1) charging: in accompanying drawing, battery is electrokinetic cell, when bi-directional DC-DC judges driving circuit electric current lower than the specified maximum load current value of battery, if the voltage of super capacitor does not reach rated maximum, just start the DC circuit from battery to super capacitor, thereby be super capacitor charging; Super capacitor voltage stops charging while reaching specified maximum voltage.
2) electric discharge: bi-directional DC-DC judges when the required electric current of driving circuit is greater than the specified maximum load current of battery, start the DC circuit from super capacitor to driving circuit, thereby increase power, in the time that driving circuit electric current is equal to or less than the specified maximum load current of battery, super capacitor power supply stops.Because voltage after super capacitor electric discharge progressively reduces, therefore this DC circuit should possess boost function and adapt to wider voltage range.
3) battery part can increase current-limiting circuit, thereby protection battery makes battery always in good running state, avoids event of overload to occur.
Claims (4)
1. electronlmobil starts an accessory feed, when car deceleration, descending, stop etc. load when low to the charging of super capacitor group, in the time accelerating or the load such as climbing is large by super capacitor auxiliary power supply, thereby increase power.
2. super capacitor auxiliary power according to claim 1, is characterized in that:
Accessory feed is bi-directional DC-DC, should possess the characteristic of boosting and wide region characteristic by super capacitor while power supply.
3. super capacitor auxiliary power according to claim 1, is characterized in that:
Driving circuit electric current during lower than the specified maximum load current value of battery, if the voltage of super capacitor does not reach rated maximum, just starts the DC circuit from battery to super capacitor, thereby charges for super capacitor; Charging current and drive current and should not exceed the specified maximum load current of battery.
4. when driving circuit electric current is greater than the specified maximum load current of battery, start the DC circuit from super capacitor to driving circuit, thereby increase power, in the time that driving circuit electric current is equal to or less than the specified maximum load current of battery, super capacitor power supply stops.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210398245.5A CN103770654A (en) | 2012-10-19 | 2012-10-19 | Super-capacitor assisted starting device of electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210398245.5A CN103770654A (en) | 2012-10-19 | 2012-10-19 | Super-capacitor assisted starting device of electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103770654A true CN103770654A (en) | 2014-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210398245.5A Pending CN103770654A (en) | 2012-10-19 | 2012-10-19 | Super-capacitor assisted starting device of electric automobile |
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| Country | Link |
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| CN (1) | CN103770654A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104354600A (en) * | 2014-10-27 | 2015-02-18 | 合肥创源车辆控制技术有限公司 | Storage battery and fuel cell hybrid power supply system |
| CN104760507A (en) * | 2015-02-16 | 2015-07-08 | 苏州汇川技术有限公司 | Control system and method of integrated controller of double-source trackless trolley |
| CN106314183A (en) * | 2016-09-09 | 2017-01-11 | 西北工业大学 | Double-super-capacitor energy management system and method of electric vehicle |
| CN107972502A (en) * | 2016-10-25 | 2018-05-01 | 现代自动车株式会社 | Method and apparatus for charging to the boosting battery of the vehicle including driving motor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201128379Y (en) * | 2007-11-23 | 2008-10-08 | 吉林市北华航天科技有限公司 | Solar energy-super capacitor hybrid power supply for vehicle |
| CN201294390Y (en) * | 2008-09-02 | 2009-08-19 | 安徽东方荣光能源科技有限公司 | All-around high-power mixing dynamic battery |
| CN202205865U (en) * | 2011-09-23 | 2012-04-25 | 赵树杰 | Capacitive power battery pack for electric vehicle |
| CN102501776A (en) * | 2011-10-28 | 2012-06-20 | 三门峡速达交通节能科技有限公司 | Composite power energy management prediction control system of pure-electric vehicle |
-
2012
- 2012-10-19 CN CN201210398245.5A patent/CN103770654A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201128379Y (en) * | 2007-11-23 | 2008-10-08 | 吉林市北华航天科技有限公司 | Solar energy-super capacitor hybrid power supply for vehicle |
| CN201294390Y (en) * | 2008-09-02 | 2009-08-19 | 安徽东方荣光能源科技有限公司 | All-around high-power mixing dynamic battery |
| CN202205865U (en) * | 2011-09-23 | 2012-04-25 | 赵树杰 | Capacitive power battery pack for electric vehicle |
| CN102501776A (en) * | 2011-10-28 | 2012-06-20 | 三门峡速达交通节能科技有限公司 | Composite power energy management prediction control system of pure-electric vehicle |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104354600A (en) * | 2014-10-27 | 2015-02-18 | 合肥创源车辆控制技术有限公司 | Storage battery and fuel cell hybrid power supply system |
| CN104760507A (en) * | 2015-02-16 | 2015-07-08 | 苏州汇川技术有限公司 | Control system and method of integrated controller of double-source trackless trolley |
| CN104760507B (en) * | 2015-02-16 | 2017-10-13 | 苏州汇川技术有限公司 | The integrated manipulator control system and method for double source trolleybus |
| CN106314183A (en) * | 2016-09-09 | 2017-01-11 | 西北工业大学 | Double-super-capacitor energy management system and method of electric vehicle |
| CN106314183B (en) * | 2016-09-09 | 2019-06-21 | 西北工业大学 | A kind of Control of Electric Vehicles method based on double super capacitor energy management systems |
| CN107972502A (en) * | 2016-10-25 | 2018-05-01 | 现代自动车株式会社 | Method and apparatus for charging to the boosting battery of the vehicle including driving motor |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140507 |