CN103944198A - Charging and driving system of electric vehicle and charging device - Google Patents

Charging and driving system of electric vehicle and charging device Download PDF

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Publication number
CN103944198A
CN103944198A CN201310018583.6A CN201310018583A CN103944198A CN 103944198 A CN103944198 A CN 103944198A CN 201310018583 A CN201310018583 A CN 201310018583A CN 103944198 A CN103944198 A CN 103944198A
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China
Prior art keywords
reversible transducer
tension battery
end points
electric automobile
charging device
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Pending
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CN201310018583.6A
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Chinese (zh)
Inventor
庄朝晖
单亮
刘波
于晶
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Siemens AG
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Siemens AG
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Priority to CN201310018583.6A priority Critical patent/CN103944198A/en
Priority to CN201910088262.0A priority patent/CN110053501A/en
Publication of CN103944198A publication Critical patent/CN103944198A/en
Pending legal-status Critical Current

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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
    • 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
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • 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
    • Y02T10/72—Electric energy management in electromobility
    • 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
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

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  • Electric Propulsion And Braking For Vehicles (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The invention discloses a charging and driving system of an electric vehicle. The charging and driving system comprises a high-voltage battery and a bidirectional transducer. Two end points of one side of the bidirectional transducer are connected with the positive electrode and the negative electrode of the high-voltage battery respectively, and two end points of the other end of the bidirectional transducer are connected with the input end of an internal inverter and are used for being connected with the output end of an external charging device. When the bidirectional transducer is connected with the output end of the external charging device, the bidirectional transducer serves as a buck converter. When the high-voltage battery provides power for driving of the electric vehicle, the bidirectional transducer serves as a boost converter. The invention further discloses the charging device which comprises an isolation transformer and a power factor correction device. One end of the isolation transformer is connected with a power supply, and the other end of the isolation transformer is connected with the input end of the power factor correction device. The output end of the power factor correction device is the output end of the charging device. According to the scheme, the structure of the charging device can be simplified, and the utilization rate of the boost converter can be improved.

Description

Charging, drive system and the charging device of electric automobile
Technical field
The present invention relates to charging, drive system and the charging device in electric automobile field, particularly a kind of electric automobile.
Background technology
First electric automobile is born in 1881 in the world, also take Zao 5 years than fuel-engined vehicle, but the continual mileage of electric automobile was too short at that time, charging interval is oversize, internal-combustion engine technology is tending towards perfect simultaneously, once refuel and can continue the 400-500km that travels, fuel price is cheap, and therefore electric automobile has been eliminated by fuel-engined vehicle gradually.
But the development of automobile in bringing huge interests to the mankind also in the challenge in the face of the energy, climate and environment problem.The progress of automotive engineering science and technology in promoting scientific and technological progress is also in the progress that greatly promotes automotive engineering.Existing automotive engineering has made internal-combustion engines vehicle aspect energy-conservation and discharge, obtain great progress, but the recoverable amount of world car is increasing sharp, and the quantity of the pollutant of the annual energy consuming of fuel-engined vehicle and discharge is also in cumulative year after year.In the face of the increasingly serious energy, natural environment and climate problem, government, academia and the industrial quarters of countries in the world all turned one's attention to environmental protection and energy-conservation electric motor car, and all in the investment strengthening electric vehicle development, accelerate the commercialization paces of electric automobile.
Electric automobile includes: hybrid vehicle, pure electric automobile, fuel cell car, hydrogen engine automobile and gas combustion automobile, alcohol ether automobile etc.
In current electric automobile, motor drives the main inverter single-stage that adopts to drive, and the two-stage drive of booster converter and inverter cascade.Wherein, inverter single-stage drives the direct motor power supply that is connected backward electric automobile with inverter of high-tension battery that refers to electric automobile.The two-stage drive of booster converter and inverter cascade refers to the high-tension battery of electric automobile and powers to the motor of electric automobile by booster converter and the inverter cascade of two-stage cascade.In addition the charging device charging for the high-tension battery of electric automobile, mainly adopts the two stage power framework of AC-to DC (AC-DC) and DC-to-DC (DC-DC) to realize.For example, charging device generally includes isolating transformer, power factor corrector (PFC) (AC-DC) and buck converter (DC-DC) etc.Wherein, one end of isolating transformer is connected with power supply, and the other end is connected with the input of PFC; The output of PFC is connected with the input of buck converter, and the output of buck converter is for being connected with the both positive and negative polarity of the high-tension battery of electric automobile, the charging of realization to high-tension battery.
In addition, those skilled in the art also drive and charging modes at the electric automobile of finding other.
Summary of the invention
In view of this, the present invention proposes a kind of charging, drive system of electric automobile, and charging device, in order to simplify the structure of charging device, improve the utilance of booster converter.
Charging, the drive system of a kind of electric automobile that the present invention proposes, comprising: high-tension battery and reversible transducer; Wherein,
Two end points of described reversible transducer one side are connected with the both positive and negative polarity of described high-tension battery respectively, and two end points of opposite side are connected with the input of inner inverter, simultaneously for being connected with the output of external recharging apparatus;
In the time that two end points of described reversible transducer opposite side are connected with the output of external recharging apparatus, described reversible transducer uses as buck converter, and making described charging device is described high-tension battery charging;
In the time of the driving power supply that is electric automobile of described high-tension battery, described reversible transducer uses as booster converter, makes described high-tension battery be realized the driving of electric automobile is powered by described reversible transducer and described inner inverter.
In an embodiment of the invention, described reversible transducer comprises: at least one branch road, and in the time that the quantity of described branch road is more than or equal to 2, each branch circuit parallel connection connects; Wherein, each branch road comprises:
The transistor of two series connection, one of them transistorized collector electrode is as the anodal end points in two end points of described reversible transducer opposite side, emitter connects another transistorized collector electrode, is connected to the positive pole of described high-tension battery by an energy storage inductor simultaneously; Another transistorized emitter connects the negative pole of described high-tension battery, simultaneously as the negative pole end points in two end points of described reversible transducer opposite side; And
Two diodes, respectively with one transistor parallel connection, wherein, the negative electrode of each diode connects transistorized collector electrode, the transistorized emitter of anodic bonding.
In an embodiment of the invention, described reversible transducer further comprises: be connected to the filter capacitor between two end points of described reversible transducer opposite side.
In an embodiment of the invention, described reversible transducer further comprises: the buffer circuit that is connected to the anodal end points in the positive pole of described high-tension battery and two end points of described reversible transducer opposite side; When described buffer circuit is powered for the driving that is electric automobile at described high-tension battery, carry out forward buffering; In the time that external recharging apparatus charges to described high-tension battery, carry out reverse blocking-up.
In an embodiment of the invention, described buffer circuit comprises:
The first relay switch being connected in series and the second relay switch, and be connected in parallel on the current-limiting resistance on the second relay switch;
Wherein, one end of the first relay switch is connected with the positive pole of high-tension battery, and the other end is connected with one end of the second relay switch, and the anodal end points in two end points of the other end of the second relay switch and described reversible transducer opposite side is connected.
In an embodiment of the invention, this system further comprises: be connected to the switch between the anodal and described reversible transducer of described high-tension battery.
The charging device that the present invention proposes, comprising: isolating transformer and power factor corrector; Wherein,
One end of isolating transformer is connected with power supply, and the other end is connected with the input of power factor corrector;
The output of power factor corrector is the output of described charging device.
From such scheme, can find out, due in the embodiment of the present invention by a part of framework in charging device, the function of buck converter (DC-DC), is integrated into electric automobile inside, thereby can simplify the structure of charging device, reduces the cost of charging device.And there is the electric automobile of booster converter for inside, by the buck converter of charging device and this booster converter are shared, obtain a reversible transducer, while power supply, (being called forward herein) uses as booster converter, when charging, (be called reverse herein) as buck converter use, thereby improved the utilance of former booster converter.In addition, there is not the electric automobile of booster converter for inside, because different automobile types may need different battery rated voltages, and different battery rated voltages need to adopt different inverters to carry out adaptation, and by a reversible transducer is set in the inside of electric automobile, can make high-tension battery voltage after booster converter adjustment, obtain stable voltage arbitrarily, therefore can be according to the output voltage of the requirements set booster converter of inverter, thereby can, by inverter standardization, reduce the development cost of whole industry; And can optimize to greatest extent the design of inverter and motor, reduce the size of inverter and motor, improve drive efficiency and power density, reduce the cost of whole controller.In addition, electric automobile adopts lithium metal battery more at present, and the voltage-current characteristic of its output is more stable.And according to current development trend, lithium metal battery probably can be replaced by fuel cell, and the output voltage of fuel cell is subject to the impact of output current larger, make output voltage have larger falling, when being arranged to electric automobile inside, booster converter can address this problem, therefore by adopting the application's technology still to make electric automobile easily compatible mutually with technology in the future.
In addition, in the application, by add a filter capacitor between two end points of the non-high-tension battery link of reversible transducer, can be smoothly as the output voltage of the reversible transducer of buck-boost converter.
In addition,, by between the anodal end points in the positive pole of described high-tension battery and two end points of the non-high-tension battery link of described reversible transducer, buffer circuit being set, can realize forward start buffering and reverse blocking-up.
Brief description of the drawings
To, by describing the preferred embodiments of the present invention in detail with reference to accompanying drawing, the person of ordinary skill in the art is more clear that above-mentioned and other feature and advantage of the present invention below, in accompanying drawing:
Fig. 1 is the structural representation of charging device in the structural representation of charging, drive system of electric automobile in the embodiment of the present invention and the embodiment of the present invention.Wherein, the structural representation that the first half is charging device, the charging that the latter half is electric automobile, the structural representation of drive system.
Wherein, Reference numeral is as follows:
Charging, the drive system of 1-charging device 2-electric automobile
HV-high-tension battery CV-reversible transducer TC-isolating transformer PFC-power factor corrector
Q 11-the first transistor Q 12-transistor seconds D 11the-the first diode D 12the-the second diode L 1the-the first energy storage inductor Q n1-tri-transistor Q n2-tetra-transistor D n1-tri-diode D n2-tetra-diode L n-N energy storage inductor O 1-anodal end points O 2-negative pole end points
C-filter capacitor K 1the-the first relay switch K 2the-the second relay switch R-current-limiting resistance
S-switch
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, the present invention is described in more detail by the following examples.
Fig. 1 is the structural representation of charging device in the structural representation of charging, drive system of electric automobile in the embodiment of the present invention and the embodiment of the present invention.Wherein, the first half is the structural representation of charging device 1, the charging that the latter half is electric automobile, the structural representation of drive system 2.As shown in the latter half in Fig. 1, the charging of the electric automobile in the embodiment of the present invention, drive system 2 can comprise: high-tension battery HV and reversible transducer CV.Wherein,
Two end points of reversible transducer CV mono-side are connected with the both positive and negative polarity of high-tension battery HV respectively, two end points O of opposite side 1and O 2be connected with the input of the inside inverter of electric automobile, simultaneously for being connected with the output of external recharging apparatus 1.
As two end points O of reversible transducer CV opposite side 1and O 2while connection with the output of external recharging apparatus 1, reversible transducer CV, as buck converter, makes charging device 1 for high-tension battery HV charging.
In the time of the high-tension battery HV driving power supply that is electric automobile, reversible transducer CV, as booster converter, makes high-tension battery HV realize the driving power supply to electric automobile by reversible transducer CV and inner inverter.
Visible, in the embodiment of the present invention owing to being provided with reversible transducer CV in the inside of electric automobile, this reversible transducer CV can be connected with external recharging apparatus 1, and use as buck converter, therefore the buck converter in charging device of the prior art can omit, charging device 1 in the invention process can, as shown in the first half in Fig. 1, comprise for this reason: isolating transformer TC and power factor corrector PFC.Wherein, one end of isolating transformer TC is connected with power supply, and the other end is connected with the input of power factor corrector PFC.The output of power factor corrector PFC is the output of charging device 1.This charging device 1 can be the charging device being similar in the charge point of gas station.
When specific implementation, reversible transducer CV can have multiple specific implementation form.In Fig. 1, only show wherein preferably execution mode of one.
As shown in the latter half in Fig. 1, this reversible transducer CV can comprise the branch road that N is in parallel, i.e. at least one branch road being formed by transistor, diode and inductance as shown in fig. 1, and wherein N is more than or equal to 1.Wherein, in the time that N equals 1, the branch road that this N is in parallel is single-phase branch road; In the time that N equals 2, the branch road that this N is in parallel is the branch road of two-phase parallel connection; In the time that N equals 3, the branch road that this N is in parallel is the branch road of parallel three phase; In the time that N equals 4, the branch road that this N is in parallel is four branch roads that are in parallel, and the rest may be inferred.
As shown in fig. 1, Article 1 branch road comprises: the first transistor Q being connected in series 11with transistor seconds Q 12, respectively with the first transistor Q 11with transistor seconds Q 12the first diode D in parallel 11with the second diode D 12, and the first energy storage inductor L 1.
Wherein, the first transistor Q 11collector electrode as the anodal end points O in two end points of reversible transducer CV opposite side 1, emitter connects transistor seconds Q 12collector electrode, simultaneously by the first energy storage inductor L 1be connected to the positive pole of high-tension battery HV; Transistor seconds Q 12emitter connect the negative pole of high-tension battery HV, simultaneously as the negative pole end points O in two end points of reversible transducer CV opposite side 2.
The first diode D 11negative electrode connect the first transistor Q 11collector electrode, anodic bonding the first transistor Q 11emitter, the second diode D 12negative electrode connect transistor seconds Q 12collector electrode, anodic bonding transistor seconds Q 12emitter.
Correspondingly, N article of branch road comprises: the 3rd transistor Q being connected in series n1with the 4th transistor Q n2, respectively with the 3rd transistor Q n1with the 4th transistor Q n2the 3rd diode D in parallel n1with the 4th diode D n2, and N energy storage inductor L n.
Wherein, the 3rd transistor Q n1collector electrode as the anodal end points O in two end points of reversible transducer CV opposite side 1, emitter connects the 4th transistor Q n2collector electrode, simultaneously by N energy storage inductor L nbe connected to the positive pole of high-tension battery HV; The 4th diode D n2emitter connect the negative pole of high-tension battery HV, simultaneously as the negative pole end points O in two end points of reversible transducer CV opposite side 2.
The 3rd diode D n1negative electrode connect the 3rd transistor Q n1collector electrode, anodic bonding the 3rd transistor Q n1emitter, the 4th diode D n2negative electrode connect the 4th diode D n2collector electrode, anodic bonding the 4th diode D n2emitter.
Further, for the power supply output voltage of the level and smooth reversible transducer as buck-boost converter, in the embodiment of the present invention, further between two end points of the non-high-tension battery link of reversible transducer, one filter capacitor C is set.
Further, the start buffering of (being called forward herein) while power supply in order to realize, current blocking while (being called reverse herein) when charging, the further anodal end points O in the positive pole of high-tension battery HV and two end points of the non-high-tension battery link of reversible transducer CV in the embodiment of the present invention 1between a buffer circuit is set, simultaneously between the positive pole of high-tension battery HV and reversible transducer CV, a switch S is set.When specific implementation, buffer circuit can have multiple specific implementation form, has illustrated wherein a kind of in Fig. 1.
As shown in Figure 1, this buffer circuit comprises: the first relay switch K being connected in series 1with the second relay switch K 2, and be connected in parallel on the second relay switch K 2on current-limiting resistance R.
Wherein, the first relay switch K 1one end be connected with the positive pole of high-tension battery HV, the other end and the second relay switch K 2one end be connected, the second relay switch K 2the other end and two end points of reversible transducer CV opposite side in anodal end points O 1be connected.
In the time that reversible transducer forward is worked (when high-tension battery HV need to be the driving power supply of electric automobile), the operation principle of this buffer circuit and switch S can be: during due to startup, the voltage of reversible transducer CV output filter capacitor C is zero, and therefore start-up course can be as follows:
When the voltage of high-tension battery HV is during lower than the setting output voltage of reversible transducer CV, switch S disconnects, the first relay switch K 1closure, now the second relay switch K 2still disconnect, circuit flow is through current-limiting resistance R, and high-tension battery HV is by the first relay switch K 1charge to working as filter capacitor C with current-limiting resistance R, when the voltage at filter capacitor C two ends reaches after the voltage of high-tension battery HV, the first relay switch K 1disconnect, switch S closure, has realized forward buffering, and high-tension battery HV is electric automobile power supply by the reversible transducer as booster converter CV afterwards.
Further, when the voltage of high-tension battery HV is during higher than the setting output voltage of reversible transducer CV, also can carry out following operation: switch S disconnects, the first relay switch K 1closure, now the second relay switch K 2still disconnect, circuit flow is through current-limiting resistance R, and high-tension battery HV is by the first relay switch K 1charge to working as filter capacitor C with current-limiting resistance R, when the voltage at filter capacitor C two ends reaches after the voltage of high-tension battery HV, the second relay switch K 2closure, bypasses reversible transducer CV, and by high-tension battery HV directly for electric automobile is powered.In the time that cell voltage HV drops to the setting output voltage of reversible transducer CV, disconnect the first relay switch K 1with the second relay switch K 2, then Closing Switch S, high-tension battery HV is electric automobile power supply by the reversible transducer as booster converter CV.
In the time of the reverse work of reversible transducer (when external recharging apparatus 1 charges to high-tension battery HV), the first relay switch K 1with the second relay switch K 2all disconnect, switch S closure, has realized backward current blocking-up.
In the present embodiment, can realize by the control unit of electric automobile inside above-mentioned to the first relay switch K 1, the second relay switch K 2control with switch S.
In addition, automobile, when inactive, disconnects the first relay switch K 1, the second relay switch K 2and switch S.
Visible, due in the embodiment of the present invention by a part of framework in charging device, the function of buck converter (DC-DC), is integrated into electric automobile inside, thereby can simplify the structure of charging device, reduces the cost of charging device.And there is the electric automobile of booster converter for inside, by the buck converter of charging device and this booster converter are shared, obtain a reversible transducer, while power supply, use as booster converter, when charging, use as buck converter, thereby improved the utilance of former booster converter.In addition, there is not the electric automobile of booster converter for inside, because different automobile types may need different battery rated voltages, and different battery rated voltages need to adopt different inverters to carry out adaptation, and by a reversible transducer is set in the inside of electric automobile, can make high-tension battery voltage after booster converter adjustment, obtain stable voltage arbitrarily, therefore can be according to the output voltage of the requirements set booster converter of inverter, thereby can, by inverter standardization, reduce the development cost of whole industry; And can optimize to greatest extent the design of inverter and motor, reduce the size of inverter and motor, improve drive efficiency and power density, reduce the cost of whole controller.In addition, electric automobile adopts lithium metal battery more at present, and the voltage-current characteristic of its output is more stable.And according to current development trend, lithium metal battery probably can be replaced by fuel cell, and the output voltage of fuel cell is subject to the impact of output current larger, make output voltage have larger falling, when being arranged to electric automobile inside, booster converter can address this problem, therefore by adopting the application's technology still to make electric automobile easily compatible mutually with technology in the future.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims (7)

1. the charging of electric automobile, a drive system, comprising: high-tension battery and reversible transducer; Wherein,
Two end points of described reversible transducer one side are connected with the both positive and negative polarity of described high-tension battery respectively, and two end points of opposite side are connected with the input of inner inverter, simultaneously for being connected with the output of external recharging apparatus;
In the time that two end points of described reversible transducer opposite side are connected with the output of external recharging apparatus, described reversible transducer uses as buck converter, and making described charging device is described high-tension battery charging;
In the time of the driving power supply that is electric automobile of described high-tension battery, described reversible transducer uses as booster converter, makes described high-tension battery be realized the driving of electric automobile is powered by described reversible transducer and described inner inverter.
2. system according to claim 1, is characterized in that, described reversible transducer comprises: at least one branch road, and in the time that the quantity of described branch road is more than or equal to 2, each branch circuit parallel connection connects; Wherein, each branch road comprises:
The transistor of two series connection, one of them transistorized collector electrode is as the anodal end points in two end points of described reversible transducer opposite side, emitter connects another transistorized collector electrode, is connected to the positive pole of described high-tension battery by an energy storage inductor simultaneously; Another transistorized emitter connects the negative pole of described high-tension battery, simultaneously as the negative pole end points in two end points of described reversible transducer opposite side; And
Two diodes, respectively with one transistor parallel connection, wherein, the negative electrode of each diode connects transistorized collector electrode, the transistorized emitter of anodic bonding.
3. system according to claim 2, is characterized in that, described reversible transducer further comprises: be connected to the filter capacitor between two end points of described reversible transducer opposite side.
4. system according to claim 3, is characterized in that, described reversible transducer further comprises: the buffer circuit that is connected to the anodal end points in the positive pole of described high-tension battery and two end points of described reversible transducer opposite side; When described buffer circuit is powered for the driving that is electric automobile at described high-tension battery, carry out forward buffering; In the time that external recharging apparatus charges to described high-tension battery, carry out reverse blocking-up.
5. system according to claim 4, is characterized in that, described buffer circuit comprises:
The first relay switch being connected in series and the second relay switch, and be connected in parallel on the current-limiting resistance on the second relay switch;
Wherein, one end of the first relay switch is connected with the positive pole of high-tension battery, and the other end is connected with one end of the second relay switch, and the anodal end points in two end points of the other end of the second relay switch and described reversible transducer opposite side is connected.
6. according to the system described in any one in claim 1 to 5, it is characterized in that, this system further comprises: be connected to the switch between the anodal and described reversible transducer of described high-tension battery.
7. a charging device, comprising: isolating transformer and power factor corrector; Wherein,
One end of isolating transformer is connected with power supply, and the other end is connected with the input of power factor corrector; The output of power factor corrector is the output of described charging device.
CN201310018583.6A 2013-01-17 2013-01-17 Charging and driving system of electric vehicle and charging device Pending CN103944198A (en)

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CN201910088262.0A CN110053501A (en) 2013-01-17 2013-01-17 Charging, drive system and the charging unit of electric car

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CN105480107A (en) * 2015-12-28 2016-04-13 青岛大学 Meshed hybrid power device for electric vehicle
CN105790398A (en) * 2014-12-25 2016-07-20 中山大洋电机股份有限公司 Semi vehicle-mounted rapid charging method and charging device of power-driven bus
CN105826968A (en) * 2015-01-28 2016-08-03 保时捷股份公司 High-voltage charge booster and method for charging direct current traction battery and corresponding electric vehicle
CN112428836A (en) * 2020-11-06 2021-03-02 广州小鹏汽车科技有限公司 Charging system, control method of charging system and electric automobile
CN112550023A (en) * 2020-11-24 2021-03-26 广州橙行智动汽车科技有限公司 Electric automobile electric integration device and method and electric automobile
CN113937850A (en) * 2021-09-30 2022-01-14 秦皇岛远舟工业气体有限公司 Contactor cut-off protection device and method for marine battery system

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CN112918290B (en) * 2021-03-26 2023-03-31 华中科技大学 Hardware multiplexing type vehicle-mounted charger with electrical isolation characteristic and application thereof

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