CN104369655A - Micro hybrid power system with multiple series-connection batteries - Google Patents
Micro hybrid power system with multiple series-connection batteries Download PDFInfo
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- CN104369655A CN104369655A CN201310355250.2A CN201310355250A CN104369655A CN 104369655 A CN104369655 A CN 104369655A CN 201310355250 A CN201310355250 A CN 201310355250A CN 104369655 A CN104369655 A CN 104369655A
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Abstract
The invention provides a micro hybrid power system with multiple series-connection batteries, and belongs to the technical field of micro hybrid power systems. The micro hybrid power system at least comprises a motor in a starting and stopping system of a vehicle and a battery module for driving the motor and/or recycling and storing the quantity of electricity generated by the motor; the battery module comprises the N batteries which are in series connection in sequence; each battery has the same rated voltage value suitable for a vehicle-mounted electronic load system; the N is an integer larger than or equal to 2; the N batteries are arranged to enable the rated voltage value of the battery module to be lower than the maximum safety voltage value of a human body. The micro hybrid power system is low in cost, simple in structure and good in safety and reliability, and the fuel economy of a vehicle with the micro hybrid power system can be greatly improved.
Description
Technical field
The invention belongs to microring array (Micro Hybrid) power system technical field, relate to the micro-hybrid system that a kind of battery module adopts multiple serial battery to be formed.
Background technology
Along with Ge great automobile vendor is to the more and more attention of new-energy automobile, wherein hybrid vehicle is got through the close siege in new-energy automobile with the advantage that cost performance is high, and is also more and more accepted by market.
In mixed dynamic power vehicle, according to the economy of fuel oil and the energy content of battery to the contribution driven, non-microring array can be divided into, light mixing (Mild Hybrid), the types such as full mixing (Full Hybrid), wherein, microring array is also referred to as " stopping-rise mixing (Stop-Start) ", by killing engine under certain operating mode or reducing the dependence of driving engine to realize the scheme of energy-saving and emission-reduction, because its micro-hybrid system is changed less on the basis of traditional combustion engine power system, realize simple, relative traditional combustion engine auto cost increases little, micro hybrid vehicle very has advantage in the automotive market of current generation.
Simultaneously, in the car, inevitably there is various vehicle electronics electrical equipment, thus define vehicle electronics load system, vehicle electronics load system uses direct supply usually, therefore single battery (such as storage battery) is used to power, and normally standardized for the load voltage value of the battery giving vehicle electronics load system, be such as 12V.
In existing micro-hybrid systems technology, usual and vehicle electronics load system uses this 12V battery jointly.When the motor of start stop system is in power generation mode (recuperated energy), its electricity is recovered at least in part and is stored in the 12V battery of vehicle electronics load system; When engine starting, can by 12V battery discharge with drive motor, the horsepower output of motor can provide extra propulsive effort for driving engine.Certainly, the 12V battery of vehicle electronics load system can be constantly vehicle electronics electrical equipment output dc voltage.
Although the micro-hybrid system system architecture of the single 12V battery of this integrated use vehicle electronics load system is simple, be more and more found its fuel economy and improve few.
In other micro-hybrid systems technology, can specially for the battery of the corresponding more high voltage-rated of micro-hybrid system configuration be to improve fuel economy, such as, the battery of 48V and 115V.But, this high pressure scheme is difficult to ensure in safety, need to arrange corresponding safety control system, and high-tension battery needs corresponding heat management to safeguard, this has raised structural complexity and the cost of micro hybrid vehicle greatly, and reliability, safety are guaranteed; Meanwhile, such as 48V battery is difficult to vehicle electronics load system compatible mutually, is also necessary for vehicle electronics load system and arranges special 12V battery.
In view of this, be necessary to propose a kind of novel micro-hybrid system.
Summary of the invention
An object of the present invention is, improves the fuel economy of micro-hybrid system.
Another object of the present invention is, improves the safety and reliability of micro hybrid vehicle.
An also object of the present invention is, simplifies the structure of micro-hybrid system and reduces its cost.
Another object of the present invention is, solves the problem that the battery module of micro hybrid vehicle is compatible mutually with the power supply of vehicle electronics load system.
For realizing above object or other objects, the invention provides following technical scheme.
According to an aspect of the present invention, provide a kind of micro-hybrid system, it at least comprises the motor in the start stop system of vehicle and the battery module for driving described motor and/or recovery to store the electricity of described electric power generation;
Described battery module comprises N number of battery be sequentially connected in series, each battery also has the identical load voltage value being adapted to vehicle electronics load system, wherein, N be more than or equal to 2 integer, and N be set make the load voltage value of battery module lower than the maximum safety voltage value of human body.
According to the micro-hybrid system of one embodiment of the invention, wherein, also comprise battery integrated control module, described battery integrated control module comprises:
Motor drive module, it is at least for carrying out DC/AC conversion;
Electrical source exchange module, it is at least for carrying out DC/DC conversion when driving described motor and carrying out Charge Management when reclaiming the electricity storing described electric power generation to N number of battery.
In the micro-hybrid system of described embodiment before, when carrying out Charge Management, the state-of-charge (SOC) according to each battery charges, and the battery that wherein state-of-charge is lower is preferentially charged.
In the micro-hybrid system of described embodiment before, described electrical source exchange module is when carrying out DC/DC conversion, and each cell output voltage is added and exports described motor drive module to.
Preferably, the capacity of each described battery is consistent.
Alternatively, the battery types of each described battery is consistent.
Alternatively, the battery types between at least two described batteries is not identical.
Further, wherein battery described in any one is used for powering for vehicle electronics load system.
According to the micro-hybrid system of further embodiment of this invention, wherein, described load voltage value is 12V, N=2.
Go back the micro-hybrid system of an embodiment according to the present invention, wherein, described load voltage value is 12V, N=3.
According to another aspect of the invention, provide a kind of vehicle, its any one hybrid power system addressed before using.
Micro-hybrid system of the present invention at least has the following advantages: (1) battery modular structure is simple, and any battery can be that vehicle electronics load system is used simultaneously, good with the compatibility of the battery of in-vehicle electronic system, is conducive to reducing costs; (2) corresponding power supply integrated control module realizes simple, and cost is low; (3) can the horsepower output of lifting motor effectively, greatly improve the fuel economy of driving engine, emissions reduction, and it is easier to start, and driving experience is better; (4) battery module heating little, there is not potential safety hazard to passenger, reliability, safety are good.
Accompanying drawing explanation
From following detailed description by reference to the accompanying drawings, will make above and other object of the present invention and advantage more complete clear, wherein, same or analogous key element adopts identical label to represent.
Fig. 1 is the structural representation of the micro-hybrid system according to one embodiment of the invention.
Fig. 2 is that the micro-hybrid system of Fig. 1 embodiment applies schematic diagram in car load.
Detailed description of the invention
Introduce below be of the present invention multiple may some in embodiment, aim to provide basic understanding of the present invention, be not intended to confirm key of the present invention or conclusive key element or limit claimed scope.Easy understand, according to technical scheme of the present invention, do not changing under connotation of the present invention, one of ordinary skill in the art can propose other implementations that can mutually replace.Therefore, following detailed description of the invention and accompanying drawing are only the exemplary illustrations to technical scheme of the present invention, and should not be considered as of the present invention all or the restriction be considered as technical solution of the present invention or restriction.
In this article, when describe a certain battery be XX lie prostrate battery time, refer to that the rated voltage of this battery is XX volt, and XX lies prostrate the output voltage of battery and might not lie prostrate for XX, it may with temperature, SOC(state-of-charge) etc. factor and fluctuating.For 12V battery, its rated voltage is 12V, but its actual output voltage may fluctuate in the scope of 9V to 16V.
Will be appreciated that the battery being applied to micro-hybrid system is in this article the battery with storage function.
Figure 1 shows that the structural representation of the micro-hybrid system according to one embodiment of the invention.As shown in Figure 1, in this embodiment, micro-hybrid system 10 can comprise battery module 11, power supply integrated control module 12 and motor 13.
Battery module 11 is exemplarily made up of two 12 volts of batteries, i.e. battery 111 and 112, and wherein, battery 111 and 112 is sequentially connected in series, and therefore, the load voltage value of battery module 11 module can be promoted to 24V.The rated voltage of battery 111 and 112 is identical 12V, it meets the supply standard of vehicle electronics load system completely, and therefore, wherein any one can be powered for in-vehicle electronic system, illustratively, battery 111 is selected as the 12V load supplying of in-vehicle electronic system.Because this battery module 11 exists 12V power supply and 24V power supply simultaneously, one of them battery of battery module 11 can be shared by in-vehicle electronic system, achieve the compatibility of the battery module of micro-hybrid system 10 and the battery of in-vehicle electronic system well, then the related components of traditional combustion engine automobile can be continued to use well, therefore, this compatibility can reduce the cost of the automobile using this micro-hybrid system 10 greatly.
The capacity of battery 111 and 112 is preferably consistent, such as, be 60Ah or 45Ah, but the concrete size of their capacity of cell is also limited to embodiments of the invention.
The type of battery 111 and 112 can be consistent, and such as, they are all lead-acid batteries or are AGM(glass fibre separator) battery; Certainly, battery 111 with 112 type also can not be identical, such as, battery 111 is AGM battery, and battery 112 is lead-acid battery.But their concrete battery types is also limited to embodiments of the invention.
Continue as shown in Figure 1, power supply integrated control module 12 comprises motor drive module 121 and electrical source exchange module 122, battery module 11 can output voltage to electrical source exchange module 122, electrical source exchange module 122 DC output end electrical source exchange module 122 couples, and electrical source exchange module 122 can be connected with motor 13 by such as three-phase alternating current wire harness.The motor of motor 13 for using in start stop system, it possesses electricity generate function, and from can by such as braking recuperated energy, motor 13 be three phase alternating current motor alternatively.
When working in discharge mode (namely under drive pattern), the output voltage of each battery is added in electrical source exchange module 122, thus output rated voltage is the direct supply of about 24V, DC/DC(DC-DC is achieved like this in electrical source exchange module 122) conversion, and export 24V direct current (DC) to motor drive module 121; Motor drive module 121 carries out direct current (DC) to the conversion exchanging (AC), thus exports three plase alternating current to motor 13.Therefore motor drive module 121 specifically can comprise the inverter with DC/AC function, and according to the needs of system, can control the horsepower output of motor.
When working in charge mode, the electric energy that motor 13 exports is input to motor drive module 121, completes the conversion of interchange (AC) to direct current (DC), and exports electrical source exchange module 122 to; Electrical source exchange module 122 can carry out Charge Management to the battery module be made up of two 12V batteries, thus completes optimization and the distribution of energy, like this, not only can postpone the service life of battery, and can promote the effect when discharging of battery.Particularly, can charge according to the SOC of each battery, the battery that wherein SOC is lower is preferentially charged, such as, battery 111 is selected as vehicle electronics load system and powers, and so the SOC of battery 111 easily declines faster, therefore, can be preferably battery 111 to charge, when battery 111 is substantially identical with the SOC of battery 112, be the two charging simultaneously.
Power supply integrated control module 12 can also couple with other parts of automobile simultaneously, such as, couples with other modules 92 of car load, control unit of engine (ECM) 91.
Motor 13 can be associated with the startup of driving engine and stopping, and particularly, the wheel that motor 13 can be arranged on driving engine fastens (not shown), and by belt-driving, motor and bent axle can mutually drive or jointly do work.Motor 13 can rotate through belt drive engine crankshaft in the drive mode, thus provides extra power, drives engine starting for driving engine; In generate mode, engine crankshaft can rotate through belt drive motor 13, realizes electricity generate function.
Therefore, the embodiment illustrated in fig. 1 direct current of 24V that can provide exports, thus export compared to traditional 12V direct current, the horsepower output of motor 13 can obviously be promoted, micro-hybrid system is when starting, engine speed can be driven higher rotating speed (such as 600rmp) after-combustion by motor, automobile not only can be made to have start-stop function, greatly reduce the fuel oil consumption of driving engine at start-up period, and NVH(noise and vibration when significantly can promote starting roughs rugosity) performance and speed, reduce because the fuel ignition of starting process open loop controls the HC/CO that causes, more easily meet non-methane HC very rambunctious required by the standard of current Europe 5 at three-element catalytic fresh and aging emission request.
Further due to the lifting of output power of motor, can also subsequently bring following technique effect: (1) electric motor starting gets a promotion speed, is conducive to the impact improving start-stop process, realizes the smooth-going function of smooth-going motor assist; (2) within the specific limits, motor can be the moment of torsion that driving engine provides extra, can the starting accelerating performance of lifting vehicle; (3) because motor has the characteristic of low-speed big, in accelerator, motor, to the compensation of power, can improve the emission problem of NOx in accelerator; (4) because motor more effectively gets involved starting process, the inaccurate problem of temperature model of the three-element catalytic under frequent little throttle can be solved; (5) reduced by the oil consumption of motor BOOST functional realiey stable state, thus new knock control strategy can be developed; (6) motor instead when car brakeing can drag generating, plays the function of Brake energy recovery, and driving engine can initiatively generate electricity (especially when engine operation is in best specific consumption of fuel region), therefore, only to improve the fuel economy of automobile by dragging motor; (7) due to the fast response characteristic of motor, demarcated by more wide in range engine EGR (Exhaust Gas Recirculation, exhaust gas recirculation) and realize the reduction that transient state accelerates oil consumption; (8) because motor can drag the characteristic that driving engine reaches 600rpm, oil consumption can be reduced by the oil-break that deceleration overall process oil-break functional realiey is more wide in range; (9) because motor positive torque compensates also response fast, thus gearbox shifting impact can be improved and respond blunt problem.
Especially it is to be appreciated that because the 24V output of battery module 11 is far below the maximum safety voltage value of the human body of usual assert 60V, therefore, do not need to arrange corresponding safety control system to ensure the safety of car occupant; Meanwhile, the battery module 11 of 24V be by two independently 12V battery formed, operationally, the heat that each battery produces can not increase, and does not therefore also need to arrange corresponding heat management system to battery.Therefore, the structure of the micro-hybrid system 10 of the embodiment of the present invention can relatively simply be arranged, and reliability, safety are easily guaranteed.
Further, export while lifting horsepower output by the series connection of multiple battery, its corresponding power supply integrated control module 12 is compared to the micro-hybrid system schema of traditional 12V battery module, the parts of main increase are electrical source exchange module 122, and electrical source exchange module 122 can be realized by dc-dc and metal oxide semi-conductor transistor, cost is not high, therefore, obviously can't increase complexity and the cost of power supply integrated control module 12.
Although battery module 12 is formed with the 12V battery of two series connection in above embodiment, according to instruction and the enlightenment of above embodiment, skilled person will appreciate that, the 12V battery that battery module also can be set to 3 or 4 series connection is formed, as long as the load voltage value of the battery module 12 that series connection is formed is lower than the maximum safety voltage value (such as 60V) of human body, preferably, the quantity of 12V battery is 2 or 3.Certainly, if the load voltage value of the battery be suitable for mutually with vehicle electronics load system changes, such as, become 14V by 12V, so correspondingly, the rated voltage of each battery included in battery module 12 also changes setting thereupon.
Figure 2 shows that the micro-hybrid system of Fig. 1 embodiment applies schematic diagram in car load.As shown in Figure 2, hybrid vehicle uses micro-hybrid system 10 as shown in Figure 1, it can carry out simple improvement and can realize from traditional internal-combustion engines vehicle, good with the consistent compatibility of existing internal-combustion engines vehicle, therefore obviously can not increase the cost of this hybrid vehicle.
In the above description, each battery in battery module has independently mouth (such as positive pole and negative pole), and certainly, the number of the battery unit (cell) included by each battery is not restrictive.
Above example mainly describes micro-hybrid system of the present invention and uses its hybrid vehicle.Although be only described some of them embodiments of the present invention, those of ordinary skill in the art should understand, and the present invention can implement with other forms many not departing from its purport and scope.Therefore, the example shown and embodiment are regarded as illustrative and not restrictive, when do not depart from as appended each claim define the present invention spirit and scope, the present invention may contain various amendments and replacement.
Claims (11)
1. a micro-hybrid system, it at least comprises the motor in the start stop system of vehicle and the battery module for driving described motor and/or recovery to store the electricity of described electric power generation; It is characterized in that,
Described battery module comprises N number of battery be sequentially connected in series, each battery also has the identical load voltage value being adapted to vehicle electronics load system, wherein, N be more than or equal to 2 integer, and N be set make the load voltage value of battery module lower than the maximum safety voltage value of human body.
2. micro-hybrid system as claimed in claim 1, it is characterized in that, also comprise battery integrated control module, described battery integrated control module comprises:
Motor drive module, it is at least for carrying out DC/AC conversion;
Electrical source exchange module, it is at least for carrying out DC/DC conversion when driving described motor and carrying out Charge Management when reclaiming the electricity storing described electric power generation to N number of battery.
3. micro-hybrid system as claimed in claim 2, it is characterized in that, when carrying out Charge Management, the state-of-charge (SOC) according to each battery charges, and the battery that wherein state-of-charge is lower is preferentially charged.
4. micro-hybrid system as claimed in claim 2, is characterized in that, described electrical source exchange module is when carrying out DC/DC conversion, and each cell output voltage is added and exports described motor drive module to.
5. micro-hybrid system as claimed in claim 1, it is characterized in that, the capacity of each described battery is consistent.
6. micro-hybrid system as claimed in claim 1, it is characterized in that, the battery types of each described battery is consistent.
7. micro-hybrid system as claimed in claim 1, it is characterized in that, the battery types between at least two described batteries is not identical.
8. micro-hybrid system as claimed in claim 1, is characterized in that, wherein battery described in any one is used for powering for vehicle electronics load system.
9. the micro-hybrid system according to any one of claim 1 to 8, is characterized in that, described load voltage value is 12V, N=2.
10. the micro-hybrid system according to any one of claim 1 to 8, is characterized in that, described load voltage value is 12V, N=3.
11. 1 kinds of vehicles, the hybrid power system of claim described in any one before use.
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| CN201310355250.2A CN104369655A (en) | 2013-08-15 | 2013-08-15 | Micro hybrid power system with multiple series-connection batteries |
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| CN201310355250.2A CN104369655A (en) | 2013-08-15 | 2013-08-15 | Micro hybrid power system with multiple series-connection batteries |
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| EP1939029A1 (en) * | 1998-06-25 | 2008-07-02 | Toyota Jidosha Kabushiki Kaisha | Battery control apparatus |
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| CN201514985U (en) * | 2009-10-30 | 2010-06-23 | 上海万宏动力能源有限公司 | 36 V nickel hydrogen battery pack for hybrid electric vehicle |
| CN102810895A (en) * | 2012-08-28 | 2012-12-05 | 哈尔滨工业大学 | Circuit and method for balancing electric quantity of storage battery pack |
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2013
- 2013-08-15 CN CN201310355250.2A patent/CN104369655A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08237811A (en) * | 1995-02-23 | 1996-09-13 | Honda Motor Co Ltd | Front-and-rear-wheel-drive vehicle |
| EP1939029A1 (en) * | 1998-06-25 | 2008-07-02 | Toyota Jidosha Kabushiki Kaisha | Battery control apparatus |
| JP2001086604A (en) * | 1999-09-14 | 2001-03-30 | Honda Motor Co Ltd | Set-battery and remaining capacity detector |
| WO2002018168A2 (en) * | 2000-08-31 | 2002-03-07 | Honda Giken Kogyo Kabushiki Kaisha | Dual voltage battery for a motor vehicle |
| CN1481059A (en) * | 2002-12-26 | 2004-03-10 | 北京机电研究所 | Equipment for managing accumulator battery of motive power utilized in electric automobile |
| CN101356707A (en) * | 2006-01-09 | 2009-01-28 | 通用电气公司 | Energy storage system for electric or hybrid vehicle |
| CN201514985U (en) * | 2009-10-30 | 2010-06-23 | 上海万宏动力能源有限公司 | 36 V nickel hydrogen battery pack for hybrid electric vehicle |
| CN102810895A (en) * | 2012-08-28 | 2012-12-05 | 哈尔滨工业大学 | Circuit and method for balancing electric quantity of storage battery pack |
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Application publication date: 20150225 |