CN107298033B - A kind of vehicle-mounted bidirectional charger driving circuit, system and electric car - Google Patents
A kind of vehicle-mounted bidirectional charger driving circuit, system and electric car Download PDFInfo
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- CN107298033B CN107298033B CN201710570664.5A CN201710570664A CN107298033B CN 107298033 B CN107298033 B CN 107298033B CN 201710570664 A CN201710570664 A CN 201710570664A CN 107298033 B CN107298033 B CN 107298033B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/60—Monitoring or controlling charging stations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/20—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by converters located in the vehicle
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/10—Control circuit supply, e.g. means for supplying power to the control circuit
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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
- 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
- Y02T90/12—Electric charging stations
-
- 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
-
- 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
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
Abstract
The present invention provides a kind of vehicle-mounted bidirectional charger driving circuit, system and electric cars, and wherein driving circuit includes: drive control unit；Level conversion unit, input terminal is connect with drive control unit, output end is connect with vehicle-mounted bidirectional charger, the task driven signal that drive control unit is inputted by input terminal is converted to the target drives signal with target level by level conversion unit, is exported by output end to vehicle-mounted bidirectional charger；Supply control unit is connected with drive control unit, receives the power request signal of drive control unit output, output power supply enable signal；Power supply circuit is connect with level conversion unit and supply control unit, when power supply circuit receives power supply enable signal, is powered to level conversion unit, is closed driving circuit in time when unusual service condition occurs, it is ensured that the safety driving of vehicle-mounted bidirectional charger.
Description
Technical field
The present invention relates to a kind of automobile component more particularly to a kind of vehicle-mounted bidirectional charger driving circuits, system and electronic
Automobile.
Background technique
Vehicle-mounted bidirectional charger for electric automobile is that one kind can convert energy between power grid and electric automobile power battery
Device, tool is there are two types of basic function: charge function and inversion function.Either charge function or inversion function, it is necessary to
The conversion that each power MOS pipe realizes energy is controlled by certain control algolithm, energy conversion is terminated when metal-oxide-semiconductor is all off.
Since there are the electrolytic capacitors of larger capacitance in vehicle-mounted bidirectional charger, after charger work, electrolytic capacitor meeting
There is higher residual voltage, if drive control chip is interfered at this time or other factors cause driving signal abnormal, such as into
Line program programming operation, can make the port output state of drive control chip uncontrollable, be easy to produce abnormal driving signal, be easy
Cause metal-oxide-semiconductor above and below in vehicle-mounted bidirectional charger straight-through, at this time the remaining high voltage on vehicle-mounted bidirectional charger median generatrix
In the case of, it is easy to produce the even more serious consequence of metal-oxide-semiconductor bombing.
Summary of the invention
A kind of vehicle-mounted bidirectional charger driving circuit, system and electric car are provided in the embodiment of the present invention, it is existing to solve
If having, drive control chip is interfered in technology or other factors cause driving signal abnormal, is easy to cause vehicle-mounted two-way charging
Metal-oxide-semiconductor is straight-through up and down in machine, leads to the problem of the even more serious consequence of metal-oxide-semiconductor bombing.
In order to solve the above-mentioned technical problem, the embodiment of the present invention adopts the following technical scheme that
On the one hand, the embodiment of the present invention provides a kind of vehicle-mounted bidirectional charger driving circuit, comprising: drive control unit,
For output services driving signal and power request signal；
Level conversion unit, input terminal are connect with the drive control unit, and output end is connect with vehicle-mounted bidirectional charger,
The level conversion unit has for being converted to the task driven signal that the drive control unit is inputted by input terminal
The target drives signal of target level, and exported by output end to the vehicle-mounted bidirectional charger；
Supply control unit is connected with the drive control unit, and the supply control unit receives the driving control
The power request signal of unit processed output, according to the power request signal, in the drive control unit and described vehicle-mounted double
When being in nominal situation to charger, output power supply enable signal；
Power supply circuit is separately connected with the level conversion unit and the supply control unit, and the power supply circuit connects
When receiving the power supply enable signal, the power supply of Xiang Suoshu level conversion unit；When not receiving the power supply enable signal, to
The level conversion unit power-off.
Optionally, the vehicle-mounted bidirectional charger driving circuit further include:
Over-current detection circuit is connected with the level conversion unit and the vehicle-mounted bidirectional charger, the overcurrent inspection
Slowdown monitoring circuit is used for when the output electric current for detecting the vehicle-mounted bidirectional charger is greater than given threshold, output cut-off signals to institute
State level conversion unit.
Optionally, the power supply circuit includes:
First metal-oxide-semiconductor and the second metal-oxide-semiconductor；
Wherein, the grid of the first metal-oxide-semiconductor is connected to the supply control unit, and the first pole of first metal-oxide-semiconductor is grounded,
Second pole of first metal-oxide-semiconductor is connected to the grid of second metal-oxide-semiconductor, and the first pole of second metal-oxide-semiconductor is connected to institute
Level conversion unit is stated, the second pole of second metal-oxide-semiconductor is connected to the first power supply.
Optionally, the power supply circuit further include:
The first resistor and first capacitor being connected in parallel between the grid and the first order of first metal-oxide-semiconductor；
The second electricity being connected on the connection circuit of the grid of the second metal-oxide-semiconductor described in the second best of first metal-oxide-semiconductor
Resistance；
The 3rd resistor being connected between the second pole of second metal-oxide-semiconductor and the grid of second metal-oxide-semiconductor；
Second capacitor, one end of second capacitor are connected in level conversion described in the first best of second metal-oxide-semiconductor
On the connection circuit of unit, other end grounding connection.
Optionally, the output end of the level conversion unit is connected with the first current potential pull-up circuit.
Optionally, level conversion unit tool is respectively connected with an output circuit on each output end there are four output end,
The first current potential pull-up circuit includes the pull-up resistor connected on the output circuit respectively.
Optionally, the input terminal of the level conversion unit is connected with the second current potential pull-up circuit.
Optionally, level conversion unit tool is respectively connected with an input circuit on each input terminal there are four input terminal,
The second current potential pull-up circuit includes the pull-up resistor connected on the input circuit respectively.
On the other hand, the embodiment of the present invention also provides a kind of vehicle-mounted bidirectional charger system, including as described above vehicle-mounted
Bidirectional charger driving circuit.
On the other hand, the embodiment of the present invention also provides a kind of electric car, which is characterized in that including as described above vehicle-mounted
Two-way charger system.
One or more embodiments of the invention has the advantages that
In the vehicle-mounted bidirectional charger driving circuit, mainly by drive control unit output services driving signal, pass through
The task driven signal is carried out level conversion by level conversion unit, is obtained target drives signal, is output this to vehicle-mounted two-way
Charger, to carry out drive control to vehicle-mounted bidirectional charger；Supply control unit and power supply circuit therein are realized to level
The individual power supply control of converting unit, supply control unit pass through power supply according to the power request signal of drive control unit
The transmission of enable signal makes power supply circuit be powered or power off level conversion unit, so that drive control unit and vehicle-mounted pair
When being in nominal situation to charger, realize that the driving circuit to the drive control of vehicle-mounted bidirectional charger, and works as drive control
When driving signal exports extremely in unit programming program process, then realizes the power-off control of level conversion unit, do not export target
Driving signal avoids causing in vehicle-mounted bidirectional charger on metal-oxide-semiconductor because driving signal during programming and enable signal are abnormal
Down tube is straight-through, avoids bombing risk, screens to unusual service condition, closes driving circuit in time when unusual service condition occurs, really
The safety driving for protecting vehicle-mounted bidirectional charger, promotes driveability.
Detailed description of the invention
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
Fig. 1 shows the control logic figures one of vehicle-mounted bidirectional charger driving circuit in the embodiment of the present invention；
Fig. 2 indicates the control logic figure two of vehicle-mounted bidirectional charger driving circuit in the embodiment of the present invention；
Fig. 3 indicates the internal circuit detail view of vehicle-mounted bidirectional charger driving circuit in the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
A kind of vehicle-mounted bidirectional charger driving circuit is disclosed in the embodiment of the present invention, in conjunction with shown in Fig. 1, Fig. 2, Fig. 3, packet
It includes: drive control unit, level conversion unit U7, supply control unit and power supply circuit A.Wherein, drive control unit is used for
Output services driving signal and power request signal.
Level conversion unit, input terminal are connect with the drive control unit, and output end is connect with vehicle-mounted bidirectional charger,
The level conversion unit has for being converted to the task driven signal that the drive control unit is inputted by input terminal
The target drives signal of target level, and exported by output end to the vehicle-mounted bidirectional charger.
Supply control unit is connected with the drive control unit, and the supply control unit receives the driving control
The power request signal of unit processed output, according to the power request signal, in the drive control unit and described vehicle-mounted double
When being in nominal situation to charger, output power supply enable signal.
Power supply circuit A is separately connected with the level conversion unit and the supply control unit, the power supply circuit A
When receiving the power supply enable signal, the power supply of Xiang Suoshu level conversion unit；When not receiving the power supply enable signal,
It is powered off to the level conversion unit.
In the vehicle-mounted bidirectional charger driving circuit, mainly by drive control unit output services driving signal, pass through
The task driven signal is carried out level conversion by level conversion unit, is obtained target drives signal, is output this to vehicle-mounted two-way
Charger, to carry out drive control to vehicle-mounted bidirectional charger；Supply control unit and power supply circuit A therein is realized to level
The individual power supply control of converting unit, supply control unit pass through power supply according to the power request signal of drive control unit
The transmission of enable signal makes power supply circuit A be powered or power off level conversion unit, so that drive control unit and vehicle-mounted
When bidirectional charger is in nominal situation, realize the driving circuit to the drive control of vehicle-mounted bidirectional charger, and when driving control
When driving signal exports extremely in unit programming program process processed, then realizes the power-off control of level conversion unit, do not export mesh
Driving signal is marked, avoids leading to MOS in vehicle-mounted bidirectional charger because driving signal during programming and enable signal are abnormal
Down tube is straight-through on (Metal-Oxide-Semiconductor, Metal-oxide-semicondutor) pipe, bombing risk is avoided, to different
Normal operating condition is screened, and closes driving circuit in time when unusual service condition occurs, it is ensured that the safety driving of vehicle-mounted bidirectional charger,
Promote driveability.
Specifically, which is DSP (Digital Signal Processor, digital signal processor),
The supply control unit is Freescale single-chip microcomputer.
In conjunction with shown in Fig. 1, Fig. 2, Fig. 3, in vehicle-mounted bidirectional charger course of normal operation, from DSP to Freescale list
Piece machine issues power request signal, when Freescale single-chip microcomputer detection complete machine and drive control unit are under nominal situation, hair
It powers out enable signal, power supply circuit A is made to give level conversion unit power supply, it is ensured that level conversion unit is exported two-way to be filled to vehicle-mounted
The driving signal of motor is normal, and each metal-oxide-semiconductor is not in unusual service condition in vehicle-mounted bidirectional charger, and in DSP programming or other are different
Under normal operating condition, Freescale single-chip microcomputer detects that DSP working signal is abnormal, and power supply circuit A can be made to disconnect, and does not give level conversion list
Member power supply prevents abnormal driving signal from causing metal-oxide-semiconductor in vehicle-mounted bidirectional charger straight-through up and down.
As a preferred embodiment, wherein in conjunction with shown in Fig. 2, Fig. 3, vehicle-mounted bidirectional charger driving circuit is also wrapped
It includes:
Over-current detection circuit B is connected with the level conversion unit and the vehicle-mounted bidirectional charger, the overcurrent inspection
Slowdown monitoring circuit B is used for when the output electric current for detecting the vehicle-mounted bidirectional charger is greater than given threshold, and output cut-off signals are extremely
The level conversion unit.
Over-current detection circuit B is when the upper down tube of generation is straight-through in vehicle-mounted bidirectional charger or other bad working environments cause
When actual current is more than setting value, output cut-off signals to level conversion unit, so that the output and latch of shutdown driving signal,
Whole driving circuit is protected, enables level conversion again after drive control unit issues Restart Signal to level conversion unit
Unit keeps task driven signal effective, and over-current detection circuit B and supply control unit two parts are realized to vehicle-mounted two-way charging
The duplicate protection of machine.
Specifically, wherein when the task driven signal of drive control unit is low level, drive vehicle-mounted bidirectional charger
In power MOS pipe；When the task driven signal of drive control unit is high level, the function in vehicle-mounted bidirectional charger is turned off
Rate metal-oxide-semiconductor.
As a preferred embodiment, wherein as shown in connection with fig. 3, power supply circuit A include: the first metal-oxide-semiconductor Q20 and
Second metal-oxide-semiconductor Q13.
Wherein, the grid of the first metal-oxide-semiconductor Q20 is connected to the supply control unit, and the first of the first metal-oxide-semiconductor Q20
Pole ground connection, the second pole of the first metal-oxide-semiconductor Q20 is connected to the grid of the second metal-oxide-semiconductor Q13, the second metal-oxide-semiconductor Q13
The first pole be connected to the level conversion unit, the second pole of the second metal-oxide-semiconductor Q13 is connected to the first power supply.Preferably,
The first metal-oxide-semiconductor Q20 is N-channel type, and the second metal-oxide-semiconductor Q13 is P-channel type.
Preferably, the extremely source electrode of the first of first metal-oxide-semiconductor Q20, second extremely drains；The first of second metal-oxide-semiconductor Q13
Grade is drain electrode, the second extremely source electrode.
As shown in Fig. 2, left side input terminal of the drive control unit output services driving signal to level conversion unit U7, supplies
Electric control unit inputs power supply enable signal by the grid of the first metal-oxide-semiconductor Q20, and the first metal-oxide-semiconductor Q20 gets the confession in grid
It is connected when electric enable signal, then the second metal-oxide-semiconductor Q13 is connected, and then the first power supply is made to power to level conversion unit U7, realizes
To the power supply control process of power supply circuit A.
Preferably, the supply voltage of first power supply is 5V.
As a preferred embodiment, wherein power supply circuit A further include: be connected in first metal-oxide-semiconductor in parallel
First resistor and first capacitor between the grid and the first order of Q20；It is connected in the second best institute of the first metal-oxide-semiconductor Q20
State the second resistance on the connection circuit of the grid of the second metal-oxide-semiconductor Q13；It is connected to the second pole and the institute of the second metal-oxide-semiconductor Q13
State the 3rd resistor between the grid of the second metal-oxide-semiconductor Q13；One end of second capacitor, second capacitor is connected in described second
On the connection circuit of level conversion unit described in the first best of metal-oxide-semiconductor Q13, other end grounding connection.
Each capacitor and resistor assembly being arranged in power supply circuit A, by with the first metal-oxide-semiconductor Q20's and the second metal-oxide-semiconductor Q13
The effect of circuit filtering, partial pressure protection is realized in circuit cooperation, it is ensured that the good operation of circuit structure in power supply circuit A, protection two
The normal operation of a metal-oxide-semiconductor, and circuit structure is simple, integrated level is high, highly reliable.
Further, as a preferred embodiment, wherein the output end of the level conversion unit is connected with the first electricity
Position pull-up circuit, to avoid power on, mislead power MOS pipe in vehicle-mounted bidirectional charger in lower electricity or programming program process,
In no driving signal, it is ensured that each power MOS pipe is not turned on.
Specifically, wherein level conversion unit tool is respectively connected with output electricity there are four output end on each output end
Road, the first current potential pull-up circuit include the pull-up resistor connected on the output circuit respectively.
I.e. the first current potential pull-up circuit is specially pull-up resistor set on each output circuit, passes through the upper of setting
Pull-up resistor ensures to make to keep high level in no driving signal, it is ensured that each power MOS pipe is absolutely turned off and is not turned on.
Specifically, the application voltage value of the pull-up resistor connected on output circuit is 5V.
As a preferred embodiment, wherein the input terminal of the level conversion unit is connected with the second current potential pull-up
Circuit is matched with the first current potential pull-up circuit connecting on the output, further avoid power on, it is lower electricity or programming program
Mislead power MOS pipe in vehicle-mounted bidirectional charger in the process, in no driving signal, it is ensured that each power MOS pipe is not turned on.
Specifically, level conversion unit tool is respectively connected with an input circuit, institute on each input terminal there are four input terminal
Stating the second current potential pull-up circuit includes the pull-up resistor connected on the input circuit respectively.
I.e. the second current potential pull-up circuit is specially pull-up resistor set on each input circuit, passes through the upper of setting
Pull-up resistor ensures to make to keep high level in no driving signal, it is ensured that each power MOS pipe is absolutely turned off and is not turned on.
Specifically, the application voltage value of the pull-up resistor connected on input circuit is 3.3V.In the defeated of level conversion unit
Enter and is pulled up with output end two sides, to avoid powering on, misleading power MOS pipe in lower electricity or programming program process,
In no driving signal, guarantee in one-chip machine port high-impedance state, it is ensured that each power MOS pipe is not turned on.
A kind of vehicle-mounted bidirectional charger system, including vehicle-mounted two-way charging as described above are also disclosed in the embodiment of the present invention
Drive circuit screens unusual service condition, closes driving circuit in time when unusual service condition occurs, avoids bombing risk,
Promote driveability.
A kind of electric car is also disclosed in the embodiment of the present invention, comprising: vehicle-mounted bidirectional charger system as described above is right
Unusual service condition is screened, and closes driving circuit in time when unusual service condition occurs, and avoids bombing risk, promotes vehicle performance.
All the embodiments in this specification are described in a progressive manner, the highlights of each of the examples are with
The difference of other embodiments, the same or similar parts between the embodiments can be referred to each other.
Although the preferred embodiment of the embodiment of the present invention has been described, once a person skilled in the art knows bases
This creative concept, then additional changes and modifications can be made to these embodiments.So the following claims are intended to be interpreted as
Including preferred embodiment and fall into all change and modification of range of embodiment of the invention.
Finally, it is to be noted that, in embodiments of the present invention, relational terms such as first and second and the like are only
Only it is used to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying these realities
There are any actual relationship or orders between body or operation.Moreover, the terms "include", "comprise" or its it is any its
He is intended to non-exclusive inclusion by variant, so that process, method, article or terminal including a series of elements are set
Standby includes not only those elements, but also including other elements that are not explicitly listed, or further includes for this process, side
Method, article or the intrinsic element of terminal device.In the absence of more restrictions, being limited by sentence "including a ..."
Fixed element, it is not excluded that including that there is also other identical in the process, method of the element, article or terminal device
Element.
Above-described is the preferred embodiment of the present invention, it should be pointed out that the ordinary person of the art is come
It says, can also make several improvements and retouch under the premise of not departing from principle of the present invention, these improvements and modifications also exist
In protection scope of the present invention.
Claims (10)
1. a kind of vehicle-mounted bidirectional charger driving circuit, including drive control unit and power supply circuit, which is characterized in that also wrap
It includes:
Level conversion unit, input terminal are connect with the drive control unit, and output end is connect with vehicle-mounted bidirectional charger, described
Level conversion unit is for being converted to the task driven signal that the drive control unit is inputted by input terminal with target
The target drives signal of level, and exported by output end to the vehicle-mounted bidirectional charger；
Supply control unit is connected with the drive control unit, and the supply control unit receives the drive control list
The power request signal of member output in the drive control unit and described vehicle-mounted two-way is filled according to the power request signal
When motor is in nominal situation, output power supply enable signal；
Wherein, the drive control unit is used for output services driving signal and power request signal；
The power supply circuit is separately connected with the level conversion unit and the supply control unit, and the power supply circuit connects
When receiving the power supply enable signal, the power supply of Xiang Suoshu level conversion unit；When not receiving the power supply enable signal, to
The level conversion unit power-off.
2. vehicle-mounted bidirectional charger driving circuit according to claim 1, which is characterized in that further include:
Over-current detection circuit is connected with the level conversion unit and the vehicle-mounted bidirectional charger, the over-current detection electricity
Road is used for when the output electric current for detecting the vehicle-mounted bidirectional charger is greater than given threshold, output cut-off signals to the electricity
Flat converting unit.
3. vehicle-mounted bidirectional charger driving circuit according to claim 1, which is characterized in that the power supply circuit includes:
First metal-oxide-semiconductor and the second metal-oxide-semiconductor；
Wherein, the grid of the first metal-oxide-semiconductor is connected to the supply control unit, and the first pole ground connection of first metal-oxide-semiconductor is described
Second pole of the first metal-oxide-semiconductor is connected to the grid of second metal-oxide-semiconductor, and the first pole of second metal-oxide-semiconductor is connected to the electricity
Second pole of flat converting unit, second metal-oxide-semiconductor is connected to the first power supply.
4. vehicle-mounted bidirectional charger driving circuit according to claim 3, which is characterized in that the power supply circuit also wraps
It includes:
The first resistor and first capacitor being connected in parallel between the grid and the first order of first metal-oxide-semiconductor；
The second resistance being connected on the connection circuit of the grid of the second metal-oxide-semiconductor described in the second best of first metal-oxide-semiconductor；
The 3rd resistor being connected between the second pole of second metal-oxide-semiconductor and the grid of second metal-oxide-semiconductor；
Second capacitor, one end of second capacitor are connected in level conversion unit described in the first best of second metal-oxide-semiconductor
Connection circuit on, other end grounding connection.
5. vehicle-mounted bidirectional charger driving circuit according to claim 1, which is characterized in that
The output end of the level conversion unit is connected with the first current potential pull-up circuit.
6. vehicle-mounted bidirectional charger driving circuit according to claim 5, which is characterized in that the level conversion unit tool
There are four output end, an output circuit is respectively connected on each output end, the first current potential pull-up circuit includes respectively in institute
State the pull-up resistor connected on output circuit.
7. vehicle-mounted bidirectional charger driving circuit according to claim 5, which is characterized in that the level conversion unit
Input terminal is connected with the second current potential pull-up circuit.
8. vehicle-mounted bidirectional charger driving circuit according to claim 7, which is characterized in that the level conversion unit tool
There are four input terminal, an input circuit is respectively connected on each input terminal, the second current potential pull-up circuit includes respectively in institute
State the pull-up resistor connected on input circuit.
9. a kind of vehicle-mounted bidirectional charger system, which is characterized in that described in any item vehicle-mounted two-way including such as claim 1-8
Charge drive circuit.
10. a kind of electric car characterized by comprising vehicle-mounted bidirectional charger system as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710570664.5A CN107298033B (en) | 2017-07-13 | 2017-07-13 | A kind of vehicle-mounted bidirectional charger driving circuit, system and electric car |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710570664.5A CN107298033B (en) | 2017-07-13 | 2017-07-13 | A kind of vehicle-mounted bidirectional charger driving circuit, system and electric car |
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| Publication Number | Publication Date |
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| CN107298033A CN107298033A (en) | 2017-10-27 |
| CN107298033B true CN107298033B (en) | 2019-08-09 |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102222958B (en) * | 2011-06-21 | 2013-10-16 | 清华大学深圳研究生院 | Vehicle-mounted bidirectional charger for electric automobile |
| CN204966636U (en) * | 2015-07-23 | 2016-01-13 | 北汽福田汽车股份有限公司 | Battery heating device , power battery package equipment and electric vehicle |
| CN205010017U (en) * | 2015-07-29 | 2016-02-03 | 中国汽车技术研究中心 | Battery management main system suitable for new energy automobile |
| CN105490363A (en) * | 2016-01-06 | 2016-04-13 | 北京新能源汽车股份有限公司 | Vehicle-mounted bidirectional charger and electric vehicle |
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