CN103887784B - Electric machine controller for motor vehicle dc-link capacitance bleeder and electric automobile - Google Patents
Electric machine controller for motor vehicle dc-link capacitance bleeder and electric automobile Download PDFInfo
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- CN103887784B CN103887784B CN201210560950.0A CN201210560950A CN103887784B CN 103887784 B CN103887784 B CN 103887784B CN 201210560950 A CN201210560950 A CN 201210560950A CN 103887784 B CN103887784 B CN 103887784B
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- 230000005669 field effect Effects 0.000 claims description 2
- 230000005611 electricity Effects 0.000 abstract description 26
- 239000003990 capacitor Substances 0.000 abstract description 16
- 238000012423 maintenance Methods 0.000 abstract description 10
- 230000009977 dual effect Effects 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 description 14
- 206010014357 Electric shock Diseases 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 208000003656 Electric Burns Diseases 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Abstract
The present invention proposes a kind of electric machine controller for motor vehicle dc-link capacitance bleeder, and which includes：Release module；First gate-controlled switch, first gate-controlled switch and the block coupled in series of releasing, first gate-controlled switch are in parallel with dc-link capacitance with after the block coupled in series of releasing；Second switch, the second switch are in parallel with first gate-controlled switch；Wherein, the electric machine controller of electric automobile is after the shutdown signal for receiving the electric automobile, the first gate-controlled switch closure is controlled so that the dc-link capacitance is once released by the module of releasing, and the dc-link capacitance carries out secondary releasing by the module of releasing after second switch closure.The bleeder can be released to the residual high pressure of bus capacitor after electric automobile cuts out twice, with dual drainage function, largely ensure the high-tension electricity Operation and Maintenance safety of maintainer.The invention allows for a kind of electric automobile.
Description
Technical field
The present invention relates to electric vehicle engineering field, more particularly to a kind of electric machine controller for motor vehicle dc bus electricity
Hold bleeder and a kind of electric automobile with which.
Background technology
Currently, the high energy-conservation of electric automobile, oligosaprobic advantage so as to become the Main way of contemporary automotive development.
The voltage of batteries of electric automobile is generally all high pressure, and following cell voltage understands more and more higher, and therefore, people are electronic in enjoyment
Automobile give people bring efficient, energy-saving and environmental protection, comfortable drive experience while, high-tension electricity is also tieed up to rider or vehicle
Shield personnel bring the danger of more high-tension electricities.For especially for High-Voltage Electrical Appliances component maintenance personnel, they are by height
The security threat of piezoelectricity is bigger.
Electric machine controller in electric automobile is high-power part, has a high voltage bus electric capacity, capacity inside which
Larger, more high voltage electricity can be stored.After high-tension battery disconnects, in electric machine controller, bus capacitor electric charge is by certainly
So discharge, but may require that longer time can be just released to below safe voltage, if this when of maintainer removes maintenance electricity
Machine controller, it is easy to by the residual high pressure electric burn of electric machine controller bus capacitor, threaten the personal safety of maintainer.
In prior art, the attendant of typically electric machine controller adopts a kind of electric discharge work when electric machine controller is dismantled
Dress, discharges to bus capacitor by hand；Scheme also is that electric machine controller quits work front motor controller automatic
High-pressure discharging device carries out automatic discharging.
But, prior art has the drawback that, electric machine controller for motor vehicle dc bus high-tension electricity is released manually
Technology, i.e., the manual method discharged by bus capacitor are easily forgotten by maintainer in practice operation, are so easy for
Maintainer is allowed to be in the danger that gets an electric shock.And electric machine controller for motor vehicle automatic high-pressure discharging device is female to direct current
The technology released by line high-tension electricity, is that by the automatic discharging when electric machine controller quits work, but unavoidably
Be exactly bleed-off circuit relay failure when, the residual high pressure electricity of bus capacitor of cannot just realizing releasing automatically, at this moment for dimension
The danger for still having high pressure to get an electric shock for repairing personnel.
Content of the invention
The purpose of the present invention is intended at least solve one of above-mentioned technological deficiency.
For this purpose, releasing it is an object of the present invention to proposing a kind of electric machine controller for motor vehicle dc-link capacitance
Device, can be released to the residual high pressure of bus capacitor after electric automobile cuts out, twice with dual drainage function, pole
The high-tension electricity Operation and Maintenance safety of maintainer has been ensured in big degree.
Another object of the present invention also proposes a kind of electric automobile.
For reaching above-mentioned purpose, a kind of electric machine controller for motor vehicle direct current of the embodiment proposition of one aspect of the present invention
Bus capacitor bleeder, including：Release module；First gate-controlled switch, first gate-controlled switch and the module string of releasing
Connection, first gate-controlled switch are in parallel with dc-link capacitance with after the block coupled in series of releasing；Second switch, described second
Switch is in parallel with first gate-controlled switch；Wherein, the electric machine controller of electric automobile is receiving the pass of the electric automobile
After closing signal, control first gate-controlled switch and close so that the dc-link capacitance carries out one by the module of releasing
Secondary release, and the second switch closure after the dc-link capacitance secondary releasing is carried out by the module of releasing.
Electric machine controller for motor vehicle dc-link capacitance bleeder according to embodiments of the present invention, can be electronic
After automobile cuts out, dc-link capacitance is released twice by module of releasing, with the dual function of releasing, can be reliably
Ensure attendant from high-tension electricity Danger Electric shock risk.Even if an additionally, automatic bleed-off circuit such as first in the bleeder
The partial failure of gate-controlled switch control, the loop of another bleed-off circuit such as second switch control still reliably can be carried out
Release work, therefore, largely ensured the high-tension electricity Operation and Maintenance safety of attendant.
In one embodiment of the invention, the second switch is position switch, when dc bus connector is disconnected
When, the second switch closure.
Wherein, first gate-controlled switch be electromagnetic switch, metal oxide layer-quasiconductor-field-effect transistor MOSFET,
One of insulated gate bipolar transistor IGBT and relay.
In an example of the present invention, the module of releasing is for resistance.
Additionally, another aspect of the present invention embodiment also proposed a kind of electric automobile, including above-mentioned used for electric vehicle
Electric machine controller dc-link capacitance bleeder.The electric automobile can be above-mentioned when its electric machine controller quits work
Electric machine controller for motor vehicle bus capacitor bleeder is once released for the high-tension electricity of dc-link capacitance, and straight
High-tension electricity when stream bus connector disconnects for dc-link capacitance carry out secondary release, to ensure the person peace of maintainer
Entirely.Additionally, two kinds of automatic discharging functions that the electric machine controller for motor vehicle bus capacitor bleeder is included, each other it
Between be not affected, even if one of automatic discharging partial failure, another discharge loop still can with normal work,
The high-tension electricity Operation and Maintenance safety of attendant has largely been ensured, reliability has been substantially increased.
The additional aspect of the present invention and advantage will be set forth in part in the description, and partly will become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Description of the drawings
The above-mentioned and/or additional aspect of the present invention and advantage will become from the following description of the accompanying drawings of embodiments
Substantially and easy to understand, wherein：
Fig. 1 is the electric machine controller for motor vehicle dc-link capacitance bleeder according to one embodiment of the invention
Block diagram；And
Fig. 2 is the structural representation of the electric machine controller for motor vehicle according to one embodiment of the invention.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
Following disclosure provides many different embodiments or example is used for realizing different structure of the invention.For letter
Change disclosure of the invention, hereinafter the part and setting of specific examples are described.Certainly, they are only merely illustrative, and
Purpose does not lie in the restriction present invention.Additionally, the present invention can in different examples repeat reference numerals and/or letter.This heavy
It is for purposes of simplicity and clarity again, itself does not indicate the relation between discussed various embodiments and/or setting.This
Outward, the invention provides various specific technique and material example, but those of ordinary skill in the art can be appreciated that
The applicable property of other techniques and/or the use of other materials.In addition, fisrt feature described below second feature it
" on " structure can include that the first and second features be formed as the embodiment of directly contact, it is also possible to including other feature shape
Into the embodiment between the first and second features, such first and second feature may not be directly contact.
In describing the invention, it should be noted that unless otherwise prescribed and limit, term " installation ", " being connected ",
" connection " should be interpreted broadly, for example, it may be mechanically connected or electrical connection, or the connection of two element internals, can
Being to be joined directly together, it is also possible to be indirectly connected to by intermediary, for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term.
With reference to explained below and accompanying drawing, it will be clear that in terms of these and other of embodiments of the invention.In these descriptions
In accompanying drawing, some particular implementations in embodiments of the invention are specifically disclosed, represent the enforcement for implementing the present invention
Some modes of the principle of example, but it is to be understood that the scope of embodiments of the invention is not limited.Conversely, the present invention
Embodiment includes all changes, modification and the equivalent fallen in the range of the spirit and intension of attached claims.
With reference to the accompanying drawings describing the electric machine controller for motor vehicle dc bus of proposition according to embodiments of the present invention
Electric capacity bleeder and the electric automobile with which.
As shown in figure 1, the electric machine controller for motor vehicle dc-link capacitance that one embodiment of the invention is proposed is released
Device includes release module 10, the first gate-controlled switch 20 and second switch 30.Wherein, the first gate-controlled switch 20 and module 10 of releasing
Series connection, the first gate-controlled switch 20 are in parallel with dc-link capacitance C after connecting with module 20 of releasing, and second switch 30 and first can
Control switch 20 is connected in parallel.Wherein, the electric machine controller 40 of electric automobile is controlled after the shutdown signal for receiving electric automobile
Make the first gate-controlled switch 20 to close so that dc-link capacitance C is once released by module 10 of releasing, and is opened second
After closing 30 closures, dc-link capacitance C carries out secondary releasing by module 10 of releasing.
In one embodiment of the invention, as shown in Fig. 2 second switch 30 is position switch 2, when dc bus is patched
When part 50 is disconnected, second switch 30 is closed.
Therefore, the electric machine controller for motor vehicle dc-link capacitance bleeder that the embodiment of the present invention is proposed, has
Double insurance function, before attendant is to the maintenance of electric machine controller 40, in fact, the control dc bus electricity of electric machine controller 40
The residual charge of appearance C have passed through and discharge twice.Say, automatic discharging when electric machine controller 40 is shut down（That is the first gate-controlled switch
The loop of 20 controls）With automatic discharging during disconnection electric machine controller high voltage dc bus connector 50（I.e. second switch 30 is controlled
The loop of system）, thus can reliably ensure direct current of the maintainer before contact high-voltage charged body, in electric machine controller 40
The electric charge of bus capacitor C is thoroughly released and is completed.The bleeder can reliably ensure that personnel are being likely to be exposed height
Before pressure electrical body, the voltage of dc-link capacitance C is released to below human safety voltage.
Specifically, in one embodiment of the invention, the first gate-controlled switch 20 can be electromagnetic switch, MOSFET
（Metal-Oxide-Semiconductor Field-Effect Transistor, metal oxide layer-quasiconductor-field effect are brilliant
Body pipe）、IGBT（Insulated Gate Bipolar Transistor, insulated gate bipolar transistor）One of with relay.
In one embodiment of the invention, as shown in Fig. 2 module 10 of releasing is for resistance R.
In one embodiment of the invention, structural representations of the Fig. 2 for electric machine controller for motor vehicle 40, this signal
The electric machine controller for motor vehicle dc-link capacitance bleeder 100 that figure is proposed comprising the embodiment of the present invention.
As shown in Fig. 2 electric machine controller 40 includes dc-link capacitance C, MCU（Micro ControlUnit, microcontroller
Unit）Control circuit 41, three phase power bridge 42, electric machine controller shell body 43, high voltage dc bus connector 50.Concrete and
Speech, the electric machine controller for motor vehicle dc-link capacitance bleeder 100 that the embodiment of the present invention is proposed include high voltage relief
Resistance R, electric machine controller are shut down control relay 1 of releasing automatically, electric machine controller high voltage dc bus connector 50 and are disconnected certainly
The position switch 2 of dynamic closure.Wherein, this three part of resistance R, relay 1 and position switch 2 is connected by way of series connection and parallel connection
It is connected on the high voltage dc bus inside electric machine controller 40（I.e. relay 1 and the rear and resistance R parallel with one another of position switch 2 go here and there
Connection connection, one end of resistance R is connected with high voltage dc bus negative pole end DC-, the other end of resistance R respectively with relay 1 one
End is connected with one end of position switch 2, the other end of the other end of relay 1 and position switch 2 respectively with high voltage dc bus
Positive terminal DC+ be connected）, and the appropriate location inside electric machine controller 40.The electric machine controller for motor vehicle is straight
Stream bus capacitor 100 operation principles of bleeder are as follows：
Maintainer before maintenance electric machine controller 40 is prepared, close on car by the key switch typically first passed through on car
All of control device（Comprising electric machine controller）, at this moment electric machine controller 40 can be by motor control while quitting work
MCU control circuit 41 inside the device control relay 1 that controls to release automatically is closed, and the high voltage electricity of dc-link capacitance C passes through
Relay 1 and bleeder resistance R are turned on and are started electric machine controller dc-link capacitance automatic discharging function, to dc-link capacitance
C carries out the automatic discharging of first stage and once releases.When maintainer is safeguarded to electric machine controller 40, it is necessary to experience
The step of be first disconnect electric machine controller 40 high voltage dc bus connector 42, now, the HVDC of electric machine controller 40
When bus connector 42 disconnects, the position switch 2 inside electric machine controller 40 will be triggered, position switch 2 is closed, directly
The high voltage electricity of stream bus capacitor C is turned on by position switch 2 and bleeder resistance R and to start electric machine controller bus capacitor automatic
Discharging function, realizes to the second stage automatic discharging of dc-link capacitance C being secondary releasing.So, implemented by the present invention
The electric machine controller for motor vehicle dc-link capacitance bleeder 100 that example is proposed, can be reliably achieved in attendant
The high-tension electricity of dc-link capacitance C is released to below human safety voltage before being safeguarded to electric machine controller 40, can be with can
By the high-tension electricity safe operation that ground ensures attendant.
Electric machine controller for motor vehicle dc-link capacitance bleeder 100, Neng Gou according to embodiments of the present invention
After electric automobile cuts out, dc-link capacitance C is released twice by module 10 of releasing, with the dual function of releasing, can be with
Reliably ensure attendant from high-tension electricity Danger Electric shock risk.Even if an additionally, automatic bleed-off circuit example in the bleeder
Such as the partial failure of the first gate-controlled switch control, the loop of another bleed-off circuit such as second switch control still can be reliable
Carry out work of releasing, therefore, largely ensured the high-tension electricity Operation and Maintenance safety of attendant.
Additionally, an alternative embodiment of the invention also proposed a kind of electric automobile, including above-mentioned electric automobile electricity consumption
Machine controller dc-link capacitance bleeder 100.The electric automobile can be above-mentioned when its electric machine controller quits work
Electric machine controller for motor vehicle bus capacitor bleeder 100 is once released for the high-tension electricity of dc-link capacitance, and
When dc bus connector disconnects for dc-link capacitance high-tension electricity carry out secondary release, to ensure the person of maintainer
Safety.Additionally, two kinds of automatic discharging functions that the electric machine controller for motor vehicle bus capacitor bleeder is included, each other
Between be not affected, even if one of automatic discharging partial failure, another discharge loop still can normal work
Make, largely ensured the high-tension electricity Operation and Maintenance safety of attendant, substantially increased reliability.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy described with reference to the embodiment or example
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example are necessarily referred to.And, the specific features of description, structure, material or feature can be any
One or more embodiments or example in combine in an appropriate manner.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding can carry out multiple changes, modification, replacement to these embodiments without departing from the principles and spirit of the present invention
And modification, the scope of the present invention by claims and its equivalent limit.
Claims (4)
1. a kind of electric machine controller for motor vehicle dc-link capacitance bleeder, it is characterised in that include：
Release module；
First gate-controlled switch, first gate-controlled switch are in parallel with dc-link capacitance with after the block coupled in series of releasing；
Second switch, the second switch are in parallel with first gate-controlled switch, and wherein, the second switch is position switch,
When dc bus connector is disconnected, the second switch closure；
Wherein, the electric machine controller of electric automobile controls described first after the shutdown signal for receiving the electric automobile
Gate-controlled switch closure is so that the dc-link capacitance is once released by the module of releasing, and is opened described second
Closing the dc-link capacitance after closing carries out secondary releasing by the module of releasing.
2. electric machine controller for motor vehicle dc-link capacitance bleeder as claimed in claim 1, it is characterised in that institute
State the first gate-controlled switch for mos field effect transistor MOSFET, insulated gate bipolar transistor IGBT and after
One of electrical equipment.
3. electric machine controller for motor vehicle dc-link capacitance bleeder as claimed in claim 1, it is characterised in that institute
Module of releasing is stated for resistance.
4. a kind of electric automobile, it is characterised in that include the Motor for Electric Automobile control as described in any one of claim 1-3
Device dc-link capacitance bleeder.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210560950.0A CN103887784B (en) | 2012-12-20 | 2012-12-20 | Electric machine controller for motor vehicle dc-link capacitance bleeder and electric automobile |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210560950.0A CN103887784B (en) | 2012-12-20 | 2012-12-20 | Electric machine controller for motor vehicle dc-link capacitance bleeder and electric automobile |
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| CN103887784A CN103887784A (en) | 2014-06-25 |
| CN103887784B true CN103887784B (en) | 2017-03-15 |
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| CN104242702A (en) * | 2014-10-10 | 2014-12-24 | 苏州弘鹏新能源有限公司 | Busbar capacitance discharge protection circuit of photovoltaic inverter |
| CN106042938A (en) * | 2016-06-20 | 2016-10-26 | 合肥卡诺汽车空调有限公司 | High-voltage circuit system for new energy automobile air conditioner |
| CN106356921B (en) * | 2016-08-31 | 2019-06-18 | 北京新能源汽车股份有限公司 | Power-discharging circuit and method of electric automobile and electric automobile |
| CN108123428B (en) * | 2016-11-29 | 2020-03-03 | 长城汽车股份有限公司 | Voltage discharge method and system of motor controller and vehicle |
| CN107901762B (en) * | 2017-11-06 | 2020-07-03 | 北京长城华冠汽车科技股份有限公司 | Method and system for treatment of discharge failure of electric vehicle |
| CN108819719B (en) * | 2018-05-03 | 2022-02-15 | 开沃新能源汽车集团有限公司 | Discharging method and device for motor controller of new energy automobile |
| CN110492459A (en) * | 2018-05-15 | 2019-11-22 | 广州小鹏汽车科技有限公司 | A kind of high-voltage discharge method, device and motor |
| CN111262268B (en) * | 2018-11-30 | 2021-09-21 | 比亚迪股份有限公司 | Electric automobile and discharge device and method thereof |
| CN110233509A (en) * | 2019-06-07 | 2019-09-13 | 中车永济电机有限公司 | Vehicle motor controller bus capacitor leadage circuit |
| CN110233510A (en) * | 2019-06-07 | 2019-09-13 | 中车永济电机有限公司 | Vehicle motor controller bus capacitor is released control method |
| CN110212510A (en) * | 2019-07-15 | 2019-09-06 | 北京精密机电控制设备研究所 | A kind of multipath is comprehensive to rise circuit from inhibition busbar voltage pump |
| CN111864714B (en) * | 2020-09-02 | 2025-01-24 | 厦门金龙联合汽车工业有限公司 | An electric energy discharge device and method for electric vehicle bus capacitor |
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| JP4738479B2 (en) * | 2006-04-12 | 2011-08-03 | 三菱電機株式会社 | Electric vehicle control device |
| CN102653245A (en) * | 2011-03-04 | 2012-09-05 | 本田技研工业株式会社 | Electric vehicle |
| CN202444254U (en) * | 2012-02-27 | 2012-09-19 | 珠海格力电器股份有限公司 | Air conditioner and discharge circuit of bus capacitor of air conditioner |
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2012
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|---|---|---|---|---|
| JP4738479B2 (en) * | 2006-04-12 | 2011-08-03 | 三菱電機株式会社 | Electric vehicle control device |
| CN102653245A (en) * | 2011-03-04 | 2012-09-05 | 本田技研工业株式会社 | Electric vehicle |
| CN202444254U (en) * | 2012-02-27 | 2012-09-19 | 珠海格力电器股份有限公司 | Air conditioner and discharge circuit of bus capacitor of air conditioner |
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| CN103887784A (en) | 2014-06-25 |
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