CN102891522B - Dual-energy-storage device with vehicle-mounted charging function - Google Patents
Dual-energy-storage device with vehicle-mounted charging function Download PDFInfo
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- CN102891522B CN102891522B CN201210368654.0A CN201210368654A CN102891522B CN 102891522 B CN102891522 B CN 102891522B CN 201210368654 A CN201210368654 A CN 201210368654A CN 102891522 B CN102891522 B CN 102891522B
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- 238000004146 energy storage Methods 0.000 title claims abstract description 80
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Abstract
The invention relates to a dual-energy-storage device with a vehicle-mounted charging function. The dual-energy-storage device comprises a main energy storage unit, an auxiliary energy storage unit, a charging unit, a bidirectional half-bridge DC/DC (Direct Current) converter and a PWM (Pulse Width Modulation) control unit, wherein the bidirectional half-bridge DC/DC converter is connected between the main energy storage unit and the auxiliary energy storage unit so as to provide a power supply path and realize energy transfer between the energy storage units, the charge unit comprises a charge interface and a rectifying module, an alternating-current input end of the rectifying module is connected with the charging interface, and a direct-current output end of the rectifying module is connected with an output end of the bidirectional half-bridge DC/DC converter. The dual-energy-storage device not only can be used to realize control over a hybrid energy system, but also has a vehicle-mounted charging function, parts of a power assembly are reduced so that an electric vehicle system is compacter, and the system cost is reduced.
Description
Technical field
The present invention relates to a kind of double-energy storage device with vehicle-mounted charge function.
Background technology
New-energy automobile is gasified by energy diversification, power electric, is discharged developing rapidly of purifying promotion China's new-energy automobile.For the technical characterstic of existing power train in vehicle application system, with the Developing mainstream that the various energy is complementary, the complementary power train in vehicle application system for technical characterstic of power becomes new-energy automobile technology.
At present, by battery technology development restriction, single energy-storage system is difficult to meet the requirement to energy and power in new-energy automobile running simultaneously, use compound energy system can the advantage of comprehensive multiple energy-storage system, reach mutual supplement with each other's advantages, meet the double requirements of new-energy automobile to energy-storage system energy and power simultaneously, improve the performance of new-energy automobile to greatest extent.The core of compound energy control strategy is the reasonable distribution of power between two kinds of energy-storage systems, namely rational control strategy is adopted, give full play to two kinds of energy-storage systems feature separately, extend the useful life of energy-storage system, the efficiency of raising system and fuel economy, and, each power assembly of new-energy automobile makes new-energy automobile have the complexity of height, many problems are brought to high-voltage safety, heat radiation, layout, car load are anti-interference etc., and integral vehicle cost is increased, the effective usage space of car load reduces.
Summary of the invention
The object of this invention is to provide a kind of double-energy storage device with vehicle-mounted charge function, in order to solve the inefficient problem of utilization of new energy resources in prior art.
For achieving the above object, the solution of the present invention is: provide a kind of double-energy storage device with vehicle-mounted charge function, comprise main energy-storage units and auxiliary energy storage unit, described main energy-storage units is connected to the output of described double-energy storage device, described auxiliary energy storage unit connects the input of bi-directional half bridge DC/DC converter, the output of described bi-directional half bridge DC/DC converter connects the output of this double-energy storage device by switch, the output of described double-energy storage device is used for being connected with the power supply electric machine controller of motor;
Described double-energy storage device is also provided with the control unit for controlling bi-directional half bridge DC/DC converter;
Described double-energy storage device is provided with charhing unit, and described charhing unit comprises rectification module and charging inlet, and the ac input end of described rectification module connects charging inlet, and its DC output end connects the output of described bi-directional half bridge DC/DC converter.
Further, described bi-directional half bridge DC/DC converter comprises electric capacity, inductance and two IGBT module of connecting, described Capacitance parallel connection is to the two ends of described main energy-storage units, described inductance one end connects the positive pole of described main energy-storage units, its other end is connected to the IGBT module drain electrode of described two series connection and the series connection point of source electrode, and another group drain electrode of the IGBT module of described two series connection is connected the output of described double-energy storage device with source electrode.
Described control unit is PWM control unit.
Described auxiliary energy storage unit is storage battery, and described main energy-storage units is super capacitor.
Described rectification module is three-phase rectifier.
The present invention is connected with bi-directional half bridge DC/DC converter between two energy-storage units, when main energy-storage units energy shortage, auxiliary energy storage unit can pass through bi-directional half bridge DC/DC converter by energy trasfer in main energy-storage units, when main energy-storage units energy brake reclaims superfluous, by bi-directional half bridge DC/DC converter by energy trasfer in auxiliary energy storage unit, energy mutually can transmit between energy-storage units, the mutual supplement with each other's advantages realizing energy source effectively utilizes, and improves the service efficiency of each energy-storage units.
And this device is also integrated with rectification module and charging inlet, when outside electric power network, the AC rectification of charging inlet is direct current by rectification module, realizes vehicle-mounted charge function, and realizes car load continual mileage by mending electricity to battery.
The present invention can realize the control to compound energy system, the function again with on-board charging system is charged to energy-storage system, can improve the utilization ratio of new forms of energy, and decreases power assembly parts, make vehicle electric system compacter, and reduce system cost.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present invention;
Fig. 2 is embodiment of the present invention circuit theory diagrams.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described in detail.
Circuit theory diagrams as shown in Figure 1, comprising in main energy-storage units 1, auxiliary energy storage unit 2, bi-directional half bridge DC/DC converter 3 and control unit 6 thereof, switch 4, rectification module 5 and charging inlet 7, figure is power supply electric machine controller shown in dotted line frame.
Bi-directional half bridge DC/DC converter is connected between main energy-storage units and auxiliary energy storage unit by switch, the signal output part of its control unit is connected to the grid trigger end of IGBT in bi-directional half bridge DC/DC converter, the ac input end of rectification module connects charging inlet, DC output end is connected between switch and bi-directional half bridge DC/DC converter, main energy-storage units is connected the output of this double-energy storage device with the output of bi-directional half bridge DC/DC converter, and the output of this double-energy storage device is used for being connected with the power supply electric machine controller of motor.
As shown in Figure 2, in the present embodiment, main energy-storage units is super capacitor, auxiliary energy storage unit is storage battery, rectification module is three-phase rectifier, control unit is PWM control unit, bi-directional half bridge DC/DC converter provides supply path for storage battery and super capacitor, and storage battery and super capacitor can transferring energies mutually by bi-directional half bridge DC/DC converter; Bi-directional half bridge DC/DC converter and PWM control unit thereof operationally, can be electric system and power and drive vehicle, also can carry out Brake energy recovery; This device is also integrated with charging inlet and three-phase rectifier, can be charge in batteries by bi-directional half bridge DC/DC converter, and when charging is required, switch disconnects.
Specific works process is as follows:
During normal driving, car load provides low pressure 24V, and PWM control unit works, and carries out self-inspection, and self-inspection is carried out preliminary filling and powered on after passing through.According to the energy requirement of car load, PWM control unit accepts car load instruction, sends pwm control signal, on the one hand during super capacitor energy shortage, PWM control unit passes through bi-directional half bridge DC/DC converter, by the energy trasfer in storage battery to super capacitor and for all kinds of load; On the other hand, when super capacitor energy brake reclaims superfluous, PWM control unit, by bi-directional half bridge DC/DC converter, by the energy trasfer in super capacitor in storage battery, finally realizes the energy trasfer between super capacitor and storage battery.
When charging shut down by car load; charging inlet and outside are plugged in rifle and are connected; after charging connects confirmation; charging accessory power supply is obtained by three-phase rectifier; for PWM control unit and inside contactor are powered; then carry out self-inspection, self-inspection by after external communication electricity is gone out direct current by three-phase rectifier rectification, then control by PWM control unit the function that bi-directional half bridge DC/DC converter is embodied as charge in batteries.
In low speed (10 ~ below 30km/h) and starting process, this double-energy storage device is motor, after making automobilism to certain speed, by engine and this double-energy storage device jointly for automobile provides power.In low cruise and starting process, particularly starting process, adopts double-energy storage device of the present invention, rely on motor produce high pulling torque start, compare 24V low voltage starting machine start oil consumption large, starting torque is little, starting effect is good, efficiency is high; And comparing with engine power generation is the mode that super capacitor charges, and double-energy storage device of the present invention avoids kinetic energy---the energy loss of electric energy conversion, energy savings.
In sum, present invention achieves the effective integration of two energy-storage units energy transferring and vehicle-mounted charge, main energy-storage units and auxiliary energy storage unit can realize the mutual transmission of energy, simultaneously, device is integrated with rectification module and charging inlet, can realize the function of vehicle-mounted charge.
Claims (5)
1. one kind has the double-energy storage device of vehicle-mounted charge function, it is characterized in that, comprise main energy-storage units and auxiliary energy storage unit, described main energy-storage units is connected to the output of described double-energy storage device, described auxiliary energy storage unit connects the input of bi-directional half bridge DC/DC converter, the output of described bi-directional half bridge DC/DC converter connects the output of this double-energy storage device by switch, the output of described double-energy storage device is used for being connected with the power supply electric machine controller of motor;
Described double-energy storage device is also provided with the control unit for controlling bi-directional half bridge DC/DC converter;
Described double-energy storage device is provided with charhing unit, and described charhing unit comprises rectification module and charging inlet, and the ac input end of described rectification module connects charging inlet, and its DC output end connects the output of described bi-directional half bridge DC/DC converter;
Main energy-storage units and auxiliary energy storage unit are by the mutual transferring energy of bi-directional half bridge DC/DC converter; This device is also integrated with charging inlet and rectification module, and when charging is required, switch disconnects, and is the charging of auxiliary energy storage unit by bi-directional half bridge DC/DC converter.
2. the double-energy storage device with vehicle-mounted charge function according to claim 1, it is characterized in that, described bi-directional half bridge DC/DC converter comprises electric capacity, inductance and two IGBT module of connecting, described Capacitance parallel connection is to the two ends of described auxiliary energy storage unit, described inductance one end connects the positive pole of described auxiliary energy storage unit, its other end is connected to the IGBT module drain electrode of described two series connection and the series connection point of source electrode, and another group drain electrode of the IGBT module of described two series connection is connected the output of described double-energy storage device with source electrode.
3. the double-energy storage device with vehicle-mounted charge function according to claim 1, is characterized in that, described control unit is PWM control unit.
4. the double-energy storage device with vehicle-mounted charge function according to claim 1, is characterized in that, described auxiliary energy storage unit is storage battery, and described main energy-storage units is super capacitor.
5. the double-energy storage device with vehicle-mounted charge function according to claim 1, is characterized in that, described rectification module is three-phase rectifier.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210368654.0A CN102891522B (en) | 2012-09-28 | 2012-09-28 | Dual-energy-storage device with vehicle-mounted charging function |
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| CN201210368654.0A CN102891522B (en) | 2012-09-28 | 2012-09-28 | Dual-energy-storage device with vehicle-mounted charging function |
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| CN102891522B true CN102891522B (en) | 2015-06-03 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103346671A (en) * | 2013-06-26 | 2013-10-09 | 苏州汇川技术有限公司 | Direct-current converter and electric automobile direct-current power supply system |
| CN103701166B (en) * | 2013-12-13 | 2016-06-01 | 郑州宇通客车股份有限公司 | A kind of electromobile and exchange charging vehicle control device feed circuit thereof |
| CN105337328B (en) * | 2014-08-08 | 2019-01-08 | 国家电网公司 | Charging circuit and system for rechargeable battery |
| CN105391151A (en) * | 2015-12-10 | 2016-03-09 | 广西玉柴机器股份有限公司 | Control box for new energy source hybrid power supply |
| CN110912378B (en) * | 2019-12-03 | 2022-10-04 | 西安中车永电电气有限公司 | Nested formula heat pipe radiator of diesel locomotive based on electrical isolation suspension frame |
| WO2023044606A1 (en) * | 2021-09-22 | 2023-03-30 | 蔚然（南京）动力科技有限公司 | Battery system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101867218A (en) * | 2010-05-17 | 2010-10-20 | 厦门金龙旅行车有限公司 | Energy storage system of hybrid automobile |
| CN102447301A (en) * | 2010-09-24 | 2012-05-09 | 光宝动力储能科技股份有限公司 | Hybrid battery module and battery management method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3625789B2 (en) * | 2001-08-10 | 2005-03-02 | 本田技研工業株式会社 | Vehicle power supply |
| JP2006050779A (en) * | 2004-08-04 | 2006-02-16 | Toyota Motor Corp | Motor driving device |
| JP2007302129A (en) * | 2006-05-12 | 2007-11-22 | Toyota Motor Corp | Power supply for hybrid vehicles |
| JP5292186B2 (en) * | 2009-05-28 | 2013-09-18 | トヨタ自動車株式会社 | Electric vehicle power supply system |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101867218A (en) * | 2010-05-17 | 2010-10-20 | 厦门金龙旅行车有限公司 | Energy storage system of hybrid automobile |
| CN102447301A (en) * | 2010-09-24 | 2012-05-09 | 光宝动力储能科技股份有限公司 | Hybrid battery module and battery management method |
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Address after: 450061 Yutong Road, Guancheng District, Zhengzhou City, Henan Province Patentee after: Yutong Bus Co., Ltd Address before: 450016 shibalihe Yutong Industrial Park, Zhengzhou City, Henan Province Patentee before: Zhengzhou Yutong Bus Co., Ltd |