CN202042937U - Power source used in 14V mild hybrid electric vehicle - Google Patents
Power source used in 14V mild hybrid electric vehicle Download PDFInfo
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- CN202042937U CN202042937U CN2010206078933U CN201020607893U CN202042937U CN 202042937 U CN202042937 U CN 202042937U CN 2010206078933 U CN2010206078933 U CN 2010206078933U CN 201020607893 U CN201020607893 U CN 201020607893U CN 202042937 U CN202042937 U CN 202042937U
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- 239000002253 acid Substances 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 8
- 230000008901 benefit Effects 0.000 description 5
- 238000007599 discharging Methods 0.000 description 5
- 238000011217 control strategy Methods 0.000 description 4
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- 238000011161 development Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 238000012544 monitoring process Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 238000006243 chemical reaction 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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Abstract
The utility model discloses a power source used in a 14V mild hybrid electric vehicle, belonging to the technical field of mild hybrid electric vehicles. A sensor is installed on a cathode post terminal of a storage battery, a capacitor is connected in parallel with the storage battery, a common anode post terminal of the capacitor and the storage battery is connected in series with a coil of a relay and taken as an output anode terminal, and a common cathode of the capacitor and the storage battery is taken as an output cathode terminal after connection. High-rate discharge performance and energy of a super-capacitor is fully utilized, discharge current of a storage battery group is reduced, and the service life of the storage battery is prolonged; and by utilizing the quick charging performance of the super-capacitor, secondary charging for the storage battery group by the super-capacitor is directly realized, so as to improve the charging performance and energy recovery of the storage battery group, shorten the charging time of the storage battery group, and give full play to the performance of the super-capacitor, therefore, the hybrid electric vehicles achieve comparatively ideal dynamic property and energy saving property, even realize the energy recovery, and also can well protect the safety of an integrated control system.
Description
Technical field
The utility model relates to a kind of 14V light hybrid power train in vehicle application power supply, belongs to the mild hybrid electric vehicle technical field.
Background technology
Along with growing to even greater heights and the influence aggravation of motor vehicle exhaust emission to environment of oil price, electric automobile has entered the period of high speed development in worldwide.Electric automobiles such as pure electric automobile, hybrid vehicle, fuel cell car are being brought into play advantage separately, and the scale of obtaining is applied.
Because technology is ripe relatively, energy-conservation obvious with environment protecting, hybrid vehicle is rapidly developed, and under the encouragement of various countries' preferential policy, progressively enters commercialization and apply the stage.U.S.'s hybrid vehicle sales volume was 31.4 ten thousand in 2008.
In the development of hybrid power technology, show tangible modularization and hardware and software platform trend, the modularization of car hybrid power system is obvious further, progressively advances the electrification of automobile power.From " the little mixing " that only possess automatic start-stop, idling shutdown function, based on " mixing " of parallel type hybrid dynamic engine with the series parallel type is " the strong mixing " of feature, along with the ratio of electrical power progressively improves, mixability improves constantly, and finally carries out the transition to tandem " the full mixing " mode of rechargeable type.
Among all kinds of hybrid power vehicles, although mild hybrid electric vehicle is reducing oil consumption and improving limited in one's ability aspect the discharging, because it is minimum to improvement cost of having internal-combustion engines vehicle now, effect is obvious, is fit to introduce to the market.The integrated BSG of the starting/generator of belt drives uses the belt drives technology on the basis of ISG (Integrated Started Generator) micro-hybrid automotive engineering, have its unique operating characteristic and advantage.The BSG technology adopts belt drives starting/generator integrated, and is little to existing automobile power assembly structural modification amount, improved the index of each side such as automobile fuel ecomomy, discharging.
Storage battery is the major impetus source of electric motor car.For guaranteeing the normal starting and the safety traffic of BSG hybrid vehicle, battery management system is voltage, electric current, temperature and the SOC data of monitoring battery in real time.Realize obtaining of voltage data by voltage collection circuit and A/D conversion.Put caused safety problem and overcharge/cross, require monitoring system accurately to measure each monomer or several monomer voltage for fear of the part that the lack of uniformity of battery is brought.If adopt traditional plurality of voltages acquisition method, when the battery cell number more for a long time, whole Design of Management System and realization have shortcomings such as cost height, consistency difference.
At present various power-supply system substantially all is to continue to use the 12V lead-acid battery that common traditional vehicle is used in the light hybrid vehicle of research and development, and total electric weight SOC of battery is limited, and under rated temperature range, the immediate current size that battery discharges is limited.Have the part system to install the DC-DC stable-pressure device additional simultaneously, this installation cost costliness and power are limited, can not satisfy on a large scale, the mass demand.
Summary of the invention
It is object with the common lead-acid battery of 12V that the purpose of this utility model is to provide this light hybrid power train in vehicle application power supply, and the characteristics of comprehensive super capacitor have designed a kind of integrated drive generator of novelty.
The utility model provides a kind of 14V light hybrid power train in vehicle application power supply, and transducer is installed on the negative pole pole of storage battery, and electric capacity is in parallel with storage battery, and the Positive Poles that electric capacity and storage battery are common and the coil tandem of relay are the output cathode end; The common negative pole of electric capacity and the storage battery back that links to each other is the output negative pole end.
One end of the 5th power line connects the negative pole of electric capacity, and the other end of the 5th power line connects the negative pole of storage battery; One end of the 4th power line connects the positive pole of electric capacity, and the other end of the 4th power line connects an end of the 3rd power line; The other end of the 3rd power line is connected with the contact of the switch of relay; Another contact of switch is connected with the positive pole of storage battery; The 5th power line and the common ends after first power line is connected connect the output negative pole end of power supply; The 4th power line and the common ends after the 3rd power line is connected connect the output cathode end of power supply.
A kind of 14V light hybrid power train in vehicle application power supply, the SOC transducer is installed on the negative pole pole of 12V storage battery, the 14V super capacitor is in parallel with the 12V storage battery, and the coil tandem of Positive Poles that 14V super capacitor and 12V storage battery are common and the high-current relay of 300A is the output cathode end; The common negative pole of 14V super capacitor and the 12V storage battery back that links to each other is the output negative pole end.
One end of the 5th power line connects the negative pole of 14V super capacitor, and the other end of the 5th power line connects the negative pole of 12V storage battery; One end of the 4th power line connects the positive pole of 14V super capacitor, and the other end of the 4th power line connects an end of the 3rd power line; The other end of the 3rd power line is connected with the contact of the switch of the high-current relay of 300A; Another contact of switch is connected with the positive pole of 12V storage battery; The 5th power line and the common ends after first power line is connected connect the output cathode end of power supply; The 4th power line and the common ends after the 3rd power line is connected connect the output negative pole end of power supply.
SOC transducer in this electrical source of power is installed on the negative pole pole of 12V storage battery, be mainly used to realize the detection of cell voltage, electric current, electric weight, specifically will realize according to corresponding control strategies that by the module that possesses controlled function outside the utility model its particular content is not included within the utility model.
Connection lead in the utility model can be changed according to different application demands, and 35 squares in the electrical schematic diagram can be satisfied 300A with interior big current flowing, and 5 squares of leads can satisfy the current flowing about 40A.
Each cart enterprise is all carrying out the light hybrid Study on Technology both at home and abroad at present, and after system design was finished, power module always unavoidably became a weakness of whole system.If use common lead-acid battery not do any change as power supply, along with the travelling of light hybrid car, the life-span of common plumbic acid battery supply (storage battery) will exhaust rapidly, can only reach the useful life of original 15% (even shorter) so.Like this, behind the employing native system, will prolong greatly the useful life of the power unit of vehicle, greatly guarantee the quality and the stability of vehicle power supply part, reduce the cost and the inconvenience of after-sales service simultaneously.
The utility model utilizes super capacitor to have characteristics such as power density high and low temperature characteristic is good, charging interval weak point, long service life, by supercapacitor applications is made up with common lead-acid battery is in parallel on hybrid vehicle, when starting, acceleration, climbing, provide instantaneous peak value power, extend the life of a cell; Also can utilize the large current charge characteristic of ultracapacitor simultaneously, when braking automobile, carry out energy recuperation, improve capacity usage ratio; Utilize the wide advantage of ultracapacitor temperature range, improve the mild hybrid electric vehicle cold starting performance.
300A relay in this electrical source of power is mainly used to realize control the function of the conducting and the disconnection of this electrical source of power, specifically will be implemented according to corresponding control strategy and algorithm by the module that possesses controlled function outside the utility model, it is specifically controlled not at the row that comprise of the present utility model.After possessing this relay, will can be implemented under the suitable situation, as required, disconnect electrical source of power, to realize protection electrical source of power, the corresponding module safe functioning of protection etc.
The common lead-acid battery of 12V in this electrical source of power is the prevailing on-vehicle battery that satisfies car gage on the market, if adopt the higher battery of performance, will more can improve the various charge-discharge performances of this electrical source of power.
The utility model electrical source of power has been cancelled the DC/DC converter, makes that the light hybrid system is simple and reliable, cost is low; Utilize the heavy-current discharge performance and the energy of super capacitor fully, reduced the discharging current of batteries, prolonged the useful life of storage battery; Utilize the performance of super capacitor fast charging; directly realized the charging of super capacitor secondary accumulators group; thereby the charging performance and the energy recuperation of batteries have been improved; shortened the charging interval of batteries; given full play to the performance of super capacitor; make hybrid vehicle reach comparatively ideal dynamic property, energy saving or even realization energy recuperation, also can play safeguard protection effect well integrated control system.
Description of drawings
When considered in conjunction with the accompanying drawings, by the reference following detailed, can more completely understand the utility model better and learn wherein many attendant advantages easily, but accompanying drawing described herein is used to provide further understanding of the present utility model, constitute a part of the present utility model, illustrative examples of the present utility model and explanation thereof are used to explain the utility model, do not constitute to improper qualification of the present utility model, wherein:
Fig. 1 is the structural representation of expression as the utility model embodiment;
Fig. 2 is an electrical principle schematic diagram of the present utility model.
Embodiment
Referring to figs. 1 through Fig. 2 embodiment of the present utility model is described.
Embodiment: concrete electrical structure connection layout as shown in Figure 1, 2; SOC transducer 10 is directly installed on the negative pole pole of 12V storage battery 9,14V super capacitor 8 is directly in parallel with 12V storage battery 9,14V super capacitor 8 and 12V storage battery 9 common Positive Poles are connected in series with the coil 13 of the high-current relay 13 of 300A, as the output cathode end of this power supply; 14V super capacitor 8 and 12V storage battery 9 common negative poles link to each other the back directly as the output negative pole end of this power supply.One end of the 5th power line 5 connects the negative pole of 14V super capacitor 8, and the other end of the 5th power line 5 connects the negative pole of 12V storage battery 9; One end of the 4th power line 4 connects the positive pole of 14V super capacitor 8, and the other end of the 4th power line 4 connects an end of the 3rd power line 3; The other end of the 3rd power line 3 is connected with the contact of the switch 14 of the high-current relay of 300A 13; Another contact of switch 14 is connected with the positive pole of 12V storage battery 9; The 5th power line 5 and the common ends after first power line 1 is connected connect the output negative pole end 12 of power supply; The 4th power line 4 and the common ends after the 3rd power line 3 is connected connect the output cathode end 11 of power supply.
SOC transducer in this electrical source of power is installed on the negative pole pole of 12V storage battery, be mainly used to realize the detection of cell voltage, electric current, electric weight, specifically will realize according to corresponding control strategies that by the module that possesses controlled function outside the utility model its particular content is not included within the utility model.
Connection lead in the utility model, can change according to different application demands, first power line 1 in the electrical schematic diagram, second source line 2, the 3rd power line 3, the 4th power line 4, the 5th power line 5 are that 35 square millimeters of line footpath leads can satisfy 300A with interior big current flowing, and power line 6, power line 7 are that 5 square millimeters of line footpath leads can satisfy the current flowing about 40A.
Each cart enterprise is all carrying out the light hybrid Study on Technology both at home and abroad at present, and after system design was finished, power module always unavoidably became a weakness of whole system.If use common lead-acid battery not do any change as power supply, along with the travelling of light hybrid car, the life-span of common plumbic acid battery supply (storage battery) will exhaust rapidly, can only reach the useful life of original 15% (even shorter) so.Like this, behind the employing native system, will prolong greatly the useful life of the power unit of vehicle, greatly guarantee the quality and the stability of vehicle power supply part, reduce the cost and the inconvenience of after-sales service simultaneously.
The utility model utilizes super capacitor to have characteristics such as power density high and low temperature characteristic is good, charging interval weak point, long service life, by supercapacitor applications is made up with common lead-acid battery is in parallel on hybrid vehicle, when starting, acceleration, climbing, provide instantaneous peak value power, extend the life of a cell; Also can utilize the large current charge characteristic of ultracapacitor simultaneously, when braking automobile, carry out energy recuperation, improve capacity usage ratio; Utilize the wide advantage of ultracapacitor temperature range, improve the mild hybrid electric vehicle cold starting performance.
300A relay in this electrical source of power is mainly used to realize control the function of the conducting and the disconnection of this electrical source of power, specifically will be implemented according to corresponding control strategy and algorithm by the module that possesses controlled function outside the utility model, it is specifically controlled not at the row that comprise of the present utility model.After possessing this relay, will can be implemented under the suitable situation, as required, disconnect electrical source of power, to realize protection electrical source of power, the corresponding module safe functioning of protection etc.
The common lead-acid battery of 12V in this electrical source of power is the prevailing on-vehicle battery that satisfies car gage on the market, if adopt the higher battery of performance, will more can improve the various charge-discharge performances of this electrical source of power.
The utility model electrical source of power has been cancelled the DC/DC converter, makes that the light hybrid system is simple and reliable, cost is low; Utilize the heavy-current discharge performance and the energy of super capacitor fully, reduced the discharging current of batteries, prolonged the useful life of storage battery; Utilize the performance of super capacitor fast charging; directly realized the charging of super capacitor secondary accumulators group; thereby the charging performance and the energy recuperation of batteries have been improved; shortened the charging interval of batteries; given full play to the performance of super capacitor; make hybrid vehicle reach comparatively ideal dynamic property, energy saving or even realization energy recuperation, also can play safeguard protection effect well integrated control system.
Obviously, the many modifications and variations done based on aim of the present utility model of those skilled in the art belong to protection range of the present utility model.
Terminological interpretation: the 1. abbreviation of SOC:state of charge refers to state-of-charge.The ratio of the capacity of the residual capacity charged state complete with it after storage battery uses a period of time or lies idle for a long time, percentage commonly used is represented.SOC=1 promptly is expressed as the battery full state.Must consider its state-of-charge during the operation of control storage battery.
2. the abbreviation of BSG:Belt Driven Starter Generator refers to the belt drives start stop system, is a light hybrid technology.This hybrid power system has installed belt drives starter motor (just the Belt-alternator StarterGenerator that often says is called for short the BSG system) usually additional.This motor is used for controlling the startup of engine and stopping for generating starts (Stop-Start) integral electric machine, thereby has cancelled the idling of engine, has reduced oil consumption and discharging.
As mentioned above, embodiment of the present utility model is explained, but as long as not breaking away from inventive point of the present utility model and effect in fact can have a lot of distortion, this will be readily apparent to persons skilled in the art.Therefore, such variation also all is included within the protection range of the present utility model.
Claims (4)
1. 14V light hybrid power train in vehicle application power supply, it is characterized in that: transducer is installed on the negative pole pole of storage battery, and electric capacity is in parallel with storage battery, and the Positive Poles that electric capacity and storage battery are common and the coil tandem of relay are the output cathode end; The common negative pole of electric capacity and the storage battery back that links to each other is the output negative pole end.
2. a kind of 14V light hybrid power train in vehicle application power supply according to claim 1 is characterized in that an end of the 5th power line connects the negative pole of electric capacity, and the other end of the 5th power line connects the negative pole of storage battery; One end of the 4th power line connects the positive pole of electric capacity, and the other end of the 4th power line connects an end of the 3rd power line; The other end of the 3rd power line is connected with the contact of the switch of relay; Another contact of switch is connected with the positive pole of storage battery; The 5th power line and the common ends after first power line is connected connect the output negative pole end of power supply; The 4th power line and the common ends after the 3rd power line is connected connect the output cathode end of power supply.
3. a kind of 14V light hybrid power train in vehicle application power supply according to claim 1 is characterized in that transducer is the SOC transducer, and storage battery is the 12V storage battery, and electric capacity is the 14V super capacitor, and coil is the coil of the high-current relay of 300A.
4. a kind of 14V light hybrid power train in vehicle application power supply according to claim 3 is characterized in that an end of the 5th power line connects the negative pole of 14V super capacitor, and the other end of the 5th power line connects the negative pole of 12V storage battery; One end of the 4th power line connects the positive pole of 14V super capacitor, and the other end of the 4th power line connects an end of the 3rd power line; The other end of the 3rd power line is connected with the contact of the switch of the high-current relay of 300A; Another contact of switch is connected with the positive pole of 12V storage battery; The 5th power line and the common ends after first power line is connected connect the output negative pole end of power supply; The 4th power line and the common ends after the 3rd power line is connected connect the output cathode end of power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206078933U CN202042937U (en) | 2010-11-12 | 2010-11-12 | Power source used in 14V mild hybrid electric vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206078933U CN202042937U (en) | 2010-11-12 | 2010-11-12 | Power source used in 14V mild hybrid electric vehicle |
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| CN202042937U true CN202042937U (en) | 2011-11-16 |
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| CN2010206078933U Expired - Lifetime CN202042937U (en) | 2010-11-12 | 2010-11-12 | Power source used in 14V mild hybrid electric vehicle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014075585A1 (en) * | 2012-11-19 | 2014-05-22 | Lei Xingliang | Battery protection apparatus and battery apparatus |
| CN111293370A (en) * | 2018-12-06 | 2020-06-16 | 上汽通用汽车有限公司 | Composite battery and vehicle |
-
2010
- 2010-11-12 CN CN2010206078933U patent/CN202042937U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014075585A1 (en) * | 2012-11-19 | 2014-05-22 | Lei Xingliang | Battery protection apparatus and battery apparatus |
| CN111293370A (en) * | 2018-12-06 | 2020-06-16 | 上汽通用汽车有限公司 | Composite battery and vehicle |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: 102606 Beijing city Daxing District Caiyu town mining and Road No. 1 Patentee after: BAIC BJEV Address before: 102606 Beijing city Daxing District Caiyu town mining and Road No. 1 Patentee before: Beijing Automobile New Energy Automobile Co.,Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20111116 |
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| CX01 | Expiry of patent term |