CN202628357U - Engine starting system - Google Patents
Engine starting system Download PDFInfo
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- CN202628357U CN202628357U CN 201220298220 CN201220298220U CN202628357U CN 202628357 U CN202628357 U CN 202628357U CN 201220298220 CN201220298220 CN 201220298220 CN 201220298220 U CN201220298220 U CN 201220298220U CN 202628357 U CN202628357 U CN 202628357U
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- starting
- storage battery
- super capacitor
- voltage level
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Abstract
The utility model discloses an engine starting system comprising an engine, a starter connected with the engine, a storage battery with a first voltage level, an anti-back-charging diode, a super capacitance group with a second voltage level, a DC (Direct Current)/DC boosting circuit for realizing constant-current charging and constant-current keeping, a switch and a starting control module. The super capacitance group and the anti-back-charging diode are connected in series and then are electrically connected at the both ends of the storage battery; and the starting control module controls the switch to turn on and off according to a starting condition and a charging condition. The engine starting system provided by the utility model has the advantages of large capacitance and long service of the super capacitor, and capability of rapidly charging and discharging at large current. The starter supplies power at a starting moment, so that not only can the impact on the storage battery caused by the large current be avoided, and the service life is prolonged, but also the larger starting power and the larger starting torque can be provided. Therefore, the starting property can be obviously improved.
Description
Technical field
The utility model belongs to the vehicle technology field, relates in particular to a kind of engine starting system.
Background technique
Vehicle all adopts the starting motor start mode now, in starting process, is supplied power to starter motor by storage battery; But because starting initial instant starting motor does not produce induced potential, it is very big to cause starting immediate current, therefore; Although car battery can high-multiplying power discharge; But long-term heavy current impact will cause battery plate hyperpolarization phenomenon, reduce the life of storage battery; The violent change in voltage of storage battery also can produce strong electromagnetic interference and cause the electrical equipment short time power down in the starting process simultaneously, and it is very necessary therefore to improve the performance of vehicle power supply in starting process.
The model utility content
The purpose of the utility model is to provide a kind of engine starting system, to prolong the life-span of storage battery, improves the starting performance of starter motor.
For solving the problems of the technologies described above, the technological scheme of the utility model is achieved in that a kind of engine starting system, comprising:
Motor;
Be connected to the starter motor of said motor, said starter motor can be operated and be used for selectively starting said motor;
Storage battery with first voltage level;
Diode is filled in counnter attack;
Super capacitor group with second voltage level, said super capacitor group is filled the two ends that are electrically connected at said storage battery after diode is connected with said counnter attack, and said super capacitor group comprises the ultracapacitor of a plurality of series connection;
The DC/DC booster circuit; Be connected between said storage battery and the super capacitor group; Be used to raise first voltage level from said storage battery, to be provided at second voltage level in the said super capacitor group, said second voltage level is higher than said first voltage level;
Switch is with the two ends that are electrically connected at said super capacitor group after said starter motor is connected;
Start control module, control the closed and disconnected of said switch.
Preferably, in above-mentioned engine starting system, said DC/DC booster circuit is an inverse-excitation type DC/DC booster circuit.
Because technique scheme utilization; The utility model compared with prior art has advantage: the engine starting system in the utility model utilizes that the super capacitor capacity is big, the life-span is long, and the premium properties of electric current fast charging and discharging was greatly supplied power to starter motor in starting moment; Not only can avoid of the impact of big electric current to storage battery; Prolong its life-span, and bigger starting power and starting torque can be provided, thereby significantly improve starting performance.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment's technological scheme; To do to introduce simply to the accompanying drawing of required use among the embodiment below; Obviously, the accompanying drawing in describing below only is some embodiments of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Shown in Figure 1 is the schematic diagram of engine starting system in the utility model specific embodiment;
Shown in Figure 2 is the schematic representation of DC/DC booster circuit among Fig. 1.
Embodiment
Super capacitor is identical with common electric capacity; Capacity also depends in interelectrode distance and electrode surface area, in order to obtain the big Capacity of trying one's best, dwindle distance between electrode of super capacitor as far as possible; Increase electrode surface area, so adopt double electrical layers, active carbon porous electrode.Be electric double layer super capacitor as shown in the figure, it is to come a kind of novel energy-storing device of store electrical energy by polarization electrolytic solution.When electrode charges, the different in nature ion around the electrode surface electric charge that is in idealized electrode state will attract in the electrolyte solution makes these ions invest electrode surface and forms electrical double layer, the formation electric double layer capacitance.
Because super capacitor is compared with traditional capacitance, the area of store charge is much bigger, and the segregate distance of electric charge is much little, and therefore the Capacity of a super capacitor unit is just up to several methods to tens thousand of methods.Owing to adopted special technology, the equivalent resistance of super capacitor is very low, and Capacity is big and internal resistance is little; Make super capacitor that very high peak current can be arranged, discharge capability is superpower, and energy conversion efficiency is high; The process loss is little; Big current energy cycle efficiency is higher than 90%, and specific power can reach 300W/KG between the 5000W/KG, is 5 to 10 times of storage battery.
Super capacitor has extremely good charge and discharge performance, in the range of nominal tension, can charge to arbitrary magnitude of voltage at a terrific speed, then can emit whole electric energy of being stored during discharge, and does not have the damage problem of boost battery charge and discharge.Therefore super capacitor is very suitable for powerful in short-term application.
Below will combine embodiment shown in the drawings that the utility model is described in detail.But these mode of executions do not limit the utility model, and the conversion on the structure that those of ordinary skill in the art makes according to these mode of executions, method or the function all is included in the protection domain of the utility model.
The utility model embodiment discloses a kind of engine starting system, comprising:
Motor;
Be connected to the starter motor of said motor, said starter motor can be operated and be used for selectively starting said motor;
Storage battery with first voltage level;
Diode is filled in counnter attack;
Super capacitor group with second voltage level, said super capacitor group is filled the two ends that are electrically connected at said storage battery after diode is connected with said counnter attack, and said super capacitor group comprises the ultracapacitor of a plurality of series connection;
The DC/DC booster circuit; Be connected between said storage battery and the super capacitor group; Be used to raise first voltage level from said storage battery, to be provided at second voltage level in the said super capacitor group, said second voltage level is higher than said first voltage level;
Switch is with the two ends that are electrically connected at said super capacitor group after said starter motor is connected;
Start control module, control the closed and disconnected of said switch.
In above-mentioned engine starting system, the DC/DC booster circuit is preferably inverse-excitation type DC/DC booster circuit; Said second voltage level is about 125% of said first voltage level; Said first voltage level is 24V, and said second voltage level is 30V.The starting control module can be according to the operating mode of starting and charging; The closed and disconnected of control switch; Be specially:, and signal transferred to the starting control module in starting moment, the ignition switch work in the vehicle; Starting control module control switch is closed, and accomplishes the power supply to starter motor by the super capacitor group; When super capacitor need charge, can be through the disconnection of starting control module control switch.
Through the super capacitor group is parallelly connected with storage battery, starting process can be divided two stages, and the phase I is the stage that energy output starting current is provided by the super capacitor group, and second stage is the stage that energy output starting current is provided by storage battery.Phase I accounts for about 1/10 of whole starting process.Engine starting system in the utility model technological scheme utilizes that the super capacitor pool-size is big, the life-span is long; The premium properties of electric current fast charging and discharging greatly; Moment supply power in starting, not only can avoid of the impact of big electric current, prolong its life-span storage battery to starter motor; And bigger starting power and starting torque can be provided, thereby significantly improve starting performance.
Join shown in Figure 1ly, engine starting system 10 comprises that motor (figure do not show), starter motor 11, storage battery 12, super capacitor group 13, DC/DC booster circuit 14, switch 15, starting control module 16 and counnter attack fill diode 17.
Be connected to engine-driving speed changer (figure does not show), be used for the propelled vehicles walking.
The control signal that switch 15 and the two ends that are connected in super capacitor group 13 after starter motor 11 is connected, this switch 15 apply in response to starting control module 16 and apply or remove the electric power on the starter motor 11, the electric power of starting control module 16 is provided by storage battery 12.
In order to prevent 12 discharges of 13 pairs of storage batteries of super capacitor group, between storage battery 12 and super capacitor group 13, be provided with counnter attack and fill diode 17, damage storage battery 12 to prevent current reflux, thereby reach the purpose of protection storage battery 12.Storage battery 12 has first voltage level.
In preferred embodiment, first voltage level in the storage battery 12 is 24V, and second voltage level in the super capacitor group 13 is preferably 125% of first voltage level, i.e. 30V.
DC/DC booster circuit 14 is preferably inverse-excitation type DC/DC booster circuit, and it is connected between storage battery 12 and the super capacitor group 13, and first voltage level from storage battery 12 of being used to raise is to be provided at second voltage level in the super capacitor group 13.DC/DC booster circuit 14 keeps in order to realize constant-current charge and constant voltage.
Inverse-excitation type DC/DC booster circuit is simple, when input voltage fluctuates within a large range, still more stable output can be arranged, and need not to switch and to reach the requirement and the conversion efficiency of stable output high, loses for a short time, and it is less that the transformer turn ratio value also can be done.Join shown in Figure 2ly, inverse-excitation type DC/DC booster circuit 14 mainly comprises power switch 141, diode VD, anti-violent change depressor T, filter capacitor C, pwm control circuit 142, feedback control circuit 143 and sampling resistor R1, R2.
The principle of engine starting system 10 can be explained as follows: close switch 15; Can be so that storage battery 12 and 13 parallel connections of super capacitor group; And storage battery 12 and super capacitor group 13 be connected to starter motor 11, at this moment, super capacitor group 13 provides second voltage level to starter motor 11 exclusively; When the voltage of super capacitor group 13 is lower than 24V, then give starter motor 11 power supplies by storage battery 12.
In sum; Engine starting system in the utility model utilizes that the super capacitor capacity is big, the life-span is long, and the premium properties of electric current fast charging and discharging was greatly supplied power to starter motor in starting moment; Not only can avoid of the impact of big electric current to storage battery; Prolong its life-span, and bigger starting power and starting torque can be provided, thereby significantly improve starting performance.
Need to prove; In this article; Relational terms such as first and second grades only is used for an entity or operation are made a distinction with another entity or operation, and not necessarily requires or hint relation or the order that has any this reality between these entities or the operation.And; Term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability; Thereby make and comprise that process, method, article or the equipment of a series of key elements not only comprise those key elements; But also comprise other key elements of clearly not listing, or also be included as this process, method, article or equipment intrinsic key element.Under the situation that do not having much more more restrictions, the key element that limits by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises said key element and also have other identical element.
Above embodiment's explanation just is used to help to understand the method and the core concept thereof of the utility model.Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
To the above-mentioned explanation of the disclosed embodiments, make related domain professional and technical personnel can realize or use the utility model.Multiple modification to these embodiments will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation of spirit that does not break away from the utility model or scope in other embodiments among this paper.Therefore, the utility model will can not be restricted to these embodiments shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (2)
1. an engine starting system is characterized in that, comprising:
Motor;
Be connected to the starter motor of said motor, said starter motor can be operated and be used for selectively starting said motor;
Storage battery with first voltage level;
Diode is filled in counnter attack;
Super capacitor group with second voltage level, said super capacitor group is filled the two ends that are electrically connected at said storage battery after diode is connected with said counnter attack, and said super capacitor group comprises the ultracapacitor of a plurality of series connection;
The DC/DC booster circuit; Be connected between said storage battery and the super capacitor group; Be used to raise first voltage level from said storage battery, to be provided at second voltage level in the said super capacitor group, said second voltage level is higher than said first voltage level;
Switch is with the two ends that are electrically connected at said super capacitor group after said starter motor is connected;
Start control module, control the closed and disconnected of said switch.
2. engine starting system according to claim 1 is characterized in that, said DC/DC booster circuit is an inverse-excitation type DC/DC booster circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220298220 CN202628357U (en) | 2012-06-25 | 2012-06-25 | Engine starting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220298220 CN202628357U (en) | 2012-06-25 | 2012-06-25 | Engine starting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202628357U true CN202628357U (en) | 2012-12-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220298220 Expired - Fee Related CN202628357U (en) | 2012-06-25 | 2012-06-25 | Engine starting system |
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| Country | Link |
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| CN (1) | CN202628357U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705128A (en) * | 2012-06-25 | 2012-10-03 | 苏州大学 | Engine starting system |
| CN106712250A (en) * | 2017-02-15 | 2017-05-24 | 叶结伢 | Transient power boosting device and transient power boosting method based on ruthenium super-capacitors |
| CN108798884A (en) * | 2017-05-02 | 2018-11-13 | 苏州科瓴精密机械科技有限公司 | A kind of internal combustion engine and garden instrument |
-
2012
- 2012-06-25 CN CN 201220298220 patent/CN202628357U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705128A (en) * | 2012-06-25 | 2012-10-03 | 苏州大学 | Engine starting system |
| CN106712250A (en) * | 2017-02-15 | 2017-05-24 | 叶结伢 | Transient power boosting device and transient power boosting method based on ruthenium super-capacitors |
| CN108798884A (en) * | 2017-05-02 | 2018-11-13 | 苏州科瓴精密机械科技有限公司 | A kind of internal combustion engine and garden instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Maoqing Inventor after: Zheng Yueping Inventor after: Wang Yunhe Inventor after: Bian Shusong Inventor after: Xu Haili Inventor after: Yan Zhenyu Inventor before: Zhang Maoqing Inventor before: Zheng Yueping Inventor before: Wang Yunhe Inventor before: Bian Shusong Inventor before: Xu Haili Inventor before: Yan Zhenyu |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20150625 |
|
| EXPY | Termination of patent right or utility model |