CN108944481A - A kind of charging circuit and method of the automobile-used compatible 12V of pure electric coach and 24V charging - Google Patents
A kind of charging circuit and method of the automobile-used compatible 12V of pure electric coach and 24V charging Download PDFInfo
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- CN108944481A CN108944481A CN201710353224.4A CN201710353224A CN108944481A CN 108944481 A CN108944481 A CN 108944481A CN 201710353224 A CN201710353224 A CN 201710353224A CN 108944481 A CN108944481 A CN 108944481A
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- charging
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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
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Abstract
The present invention provides the charging circuits and method of a kind of automobile-used compatible 12V of pure electric coach and 24V charging, by the way that booster circuit is integrated into DC/DC module, when charging gun output voltage is 24V, the first switch that control conducting is connect with booster circuit is that low pressure electricity consumption module (including battery management system, entire car controller and remote supervisory and control(ling) equipment) charges normal by charging gun；When charging gun output is the voltage of 12V, output voltage is risen into 24V by booster circuit, for control unit power supply, control unit enables DC/DC module, and the second switch that conducting is connect with power battery, and being depressured by power battery by DC/DC module is low pressure electricity consumption module for power supply, solve the problems, such as that pure electric coach can not be compatible with 12V and 24V charging gun charges, it work normally each component of charging system can, meet vehicle demand, ensure that the normal operation of vehicle.
Description
Technical field
The invention belongs to technical field of new energy, in particular to a kind of automobile-used compatible 12V and 24V of pure electric coach fills
The charging circuit and method of electricity.
Background technique
In recent years, new-energy automobile has pollutant emission low, pollutes the features such as small, has obtained the encouragement development of country,
New-energy automobile, which becomes, solves energy crisis and the more effective approach of problem of environmental pollution, and charging system is new-energy automobile
Critical system is the available sources of new-energy automobile electric energy, but the construction of charging system restricts always the universal of electric car
And development.
Pure electric coach is developed by traditional car, and the 24V electric system of traditional car, pure electric coach are inherited
Existing all electrical parts are all using 24V power supply system, and in charging, the charging pile or charging gun of pure electric coach are to visitor
Automobile-used low-voltage power supply is 24V.As shown in Figure 1,24V charging gun and power battery management system, entire car controller and long-range prison
The connection of control system, when charging is required, charging gun is connected with the socket of pure electric coach, car BMS (power battery management
System) detection charging gun 24V power supply, entire car controller and remote monitoring system starting, into vehicle charge mode, when charging,
Power supply circuit block diagram and charging modes schematic diagram difference are as depicted in figs. 1 and 2.
Country is in order to further push charging pile to build, and the commercial automobile-used charging scheme of release new energy is riding with new energy
Vehicle uses unified 12V charging gun.Fig. 1 and Fig. 2 is it is found that circuit when charging constitutes and charging is achieved in that the charging of 24V
System, this charging system are no longer desirable for pure electric coach.If client location uses the charging gun of 12V, charging gun is mentioned
The 12V power of confession only has 10A, is insufficient for (BMS, entire car controller and the remote monitoring system) of low-voltage electrical appliance when charging
Power demand, meanwhile, the high voltage connector that charging contactor is powered using 24V.Using the charging gun of 12V, charging system
Each component can not all work, and influence the normal operation of vehicle.In order to accelerate the adaptability of pure electric vehicle commercial vehicle, pure electric vehicle visitor is improved
Vehicle utilization rate, what the compatible 12V and 24V charging gun of research and development pure electric coach charged is achieved in that very necessary.
Summary of the invention
The purpose of the present invention is to provide a kind of charging circuit of the automobile-used compatible 12V of pure electric coach and 24V charging and sides
Method, for solving, pure electric coach vehicle can not be compatible with 12V and 24V charging gun causes not to be able to satisfy low pressure electricity consumption module power demand
The problem of.
To achieve the above object, the technical scheme is that
A kind of charging circuit of the automobile-used compatible 12V of pure electric coach and 24V charging, including interior high voltage dc bus and
Low-voltage direct bus, the high voltage dc bus connects power battery, and connects the low-pressure direct by a DC/DC module
Flow bus；It further include a boost module and a control unit, the boost module is at least used for 12V voltage and switchs to 24V electricity
Pressure；The input terminal of the boost module connects a charging socket for accessing with charging gun, the output of the boost module
The power end of end connection described control unit, and the output end of boost module connects the low pressure by a first switch (J1)
DC bus is the low-voltage direct bussed supply, and the first switch (J1) is used to be connected when accessing 24V charging gun,
It is disconnected when accessing 12V charging gun；Also string is equipped with second switch (K1) on route between the power battery and DC/DC module,
The second switch (K1) disconnects for being connected when accessing 12V charging gun when accessing 24V charging gun；Described control unit
Control connects the first switch (J1), second switch (K1).
Further, the first switch is low-voltage relay, and the second switch is high voltage connector.
Further, the low-voltage direct bus is connected with low pressure electricity consumption module.
Further, the low pressure electricity consumption module includes battery management system, entire car controller and remote monitoring module.
The present invention also provides a kind of automobile-used compatible 12V of pure electric coach and 24V charging charging circuit charging method,
Include the following steps:
The output voltage for detecting charging gun, when the output voltage for detecting charging gun is 24V, control conducting first switch,
It is low pressure electricity consumption module for power supply by charging gun；
When the output voltage for detecting charging gun is 12V, control conducting second switch, and enabled conducting DC/DC module, by
Power battery is the low pressure electricity consumption module for power supply after DC/DC module decompression.
Further, the first switch is low-voltage relay, and the second switch is high voltage connector.
The beneficial effects of the present invention are:
Booster circuit is integrated into DC/ on the basis of the electricity consumption device function of original new-energy automobile is constant by the present invention
DC module, when charging gun output voltage is 24V, the first switch that control conducting is connect with booster circuit is low by charging gun
Pressure electricity consumption module (including battery management system, entire car controller and remote supervisory and control(ling) equipment) charges normal；When charging gun output is
When the voltage of 12V, output voltage is risen to by 24V by booster circuit, is powered for control unit, control unit enables DC/DC
Module, and the second switch that conducting is connect with power battery, being depressured by power battery by DC/DC module is low pressure electricity consumption module
Power supply solves the problems, such as that pure electric coach can not be compatible with 12V and 24V charging gun charges, makes each component of charging system can be just
Often work, meets vehicle demand, ensure that the normal operation of vehicle.
Detailed description of the invention
Fig. 1 is power supply circuit block diagram when 24V charging gun is pure electric coach charging in the prior art；
Fig. 2 is the charging flow figure of 24V charging gun in the prior art；
Fig. 3 is the charging circuit schematic diagram of compatibility 12V and 24V charging of the invention；
Fig. 4 is the flow chart of the charging method of compatibility 12V and 24V charging of the invention.
Specific embodiment
A specific embodiment of the invention is further described with reference to the accompanying drawing:
A kind of embodiment of the charging circuit of the automobile-used compatible 12V of pure electric coach of the invention and 24V charging:
A kind of charging circuit of the automobile-used compatible 12V of pure electric coach and 24V charging, including interior high voltage dc bus and
Low-voltage direct bus, high voltage dc bus connects power battery, and connects low-voltage direct bus by a DC/DC module；
The present invention makes pure electric vehicle on the basis of the electricity consumption device function of original pure electric coach is constant, by increasing a booster circuit
The compatible 12V of car and 24V charging gun, meet vehicle demand.As shown in figure 3, the automobile-used compatible 12V of pure electric coach of the invention
It further include a boost module and a control unit with the charging circuit of 24V charging, which is 12V/24VBOOST
12V voltage is switched to 24V voltage when accessing 12V charging gun by circuit, and the electricity of 24V is still exported when accessing 24V charging gun
Pressure.
Wherein, the input terminal of boost module connects one for the charging socket that accesses with charging gun, boost module it is defeated
Outlet is directly connected to the power end of control unit, and the output end of boost module passes through a first switch J1 connection low-voltage direct
Bus, first switch J1 are low-voltage direct bussed supply, when accessing 12V charging gun for being connected when accessing 24V charging gun
It disconnects；Also string is equipped with second switch K1 on route between power battery and DC/DC module, and second switch K1 is for accessing
It is connected when 12V charging gun, after being depressured power battery by DC/DC module, for the low pressure electricity consumption mould of low-voltage direct bus connection
Block power supply, guarantees the power demand of low pressure electricity consumption module, disconnects when accessing 24V charging gun.
Control unit control connects the first switch J1, second switch K1, for controlling first switch J1, second switch
The conducting of K1, and control unit controls enabled DC/DC module, works normally DC/DC module, certain DC/DC module can be
Intellectual product, its own includes controller, and the voltage of high pressure port is detected by own controller, passes through the voltage detected
Size control starting itself work.
After the socket of charging gun is connect with pure electric coach, filled by control unit test side by sensor acquisition testing
The output voltage of the socket of electric rifle can also collect in 12V/24VBOOST circuit certainly to control corresponding switching tube conducting
At controller, integrated manipulator detects the output voltage of charging gun in 12V/24VBOOST circuit.
12V/24VBOOST circuit and control unit of the invention can integrate together, and control unit can be with DC/DC
Module integrates, and 12V/24VBOOST circuit and control unit can also be all integrated in DC/DC inside modules.
First switch J1 in the present embodiment is low-voltage relay, and second switch K1 is power battery due to connection, institute
Using high voltage connector；As other embodiments, triode is can also be used in first switch J1.
The process to be charged using charging circuit of the invention to pure electric coach are as follows:
After the connection of the socket of charging gun and pure electric coach, whether the plug in rifle signal of control unit detection is effective, if effectively,
Charging gun starts the voltage output of 12V/24V, if the output voltage of control unit detection charging gun is 24V, due to 12V/
Voltage after the boosting of 24VBOOST boost module is up to 24V, then the voltage exported through 12V/24VBOOST boost module
It is still 24V, it is power battery management system, vehicle by charging gun that control unit, which obtains electric, at this time, and control low-voltage relay J1 is attracted
The low pressure electricity consumption module normal power supply such as controller and long-range monitoring control module, obtain it is electric after power battery management system BMS work,
Entire car controller work, remote-monitoring controller also work.After power battery management system BMS work, detection charger work
It is whether normal, it alarms if abnormal, charging contactor is attracted by BMS if normal, be power electric by the high voltage power supply of charging gun
Pond charging, and charging status information is uploaded by BMS.
If control unit detects that the output voltage of charging gun is 12V, 12V/24VBOOST boost module is defeated by charging gun
The charging voltage of 12V out rises to 24V, since the corresponding electric current of voltage of the 12V of charging gun output only has 10A, is not enough to
The power demand of low pressure electricity consumption module when meeting charging is only so charging gun cannot be low pressure electricity consumption module for power supply at this time
Control unit charging, it is sufficient to meet the power demand of control unit.Control unit controls the front end high contact of DC/DC module
Device, and enable signal is sent to DC/DC module, so that DC/DC module is worked, the high pressure that DC/DC module exports power battery turns
It is changed to 24V, is the low pressure electricity consumption moulds such as power battery management system, entire car controller and long-range monitoring control module by power battery
Block power supply, obtain it is electric after power battery management system BMS work, entire car controller work, remote-monitoring controller also works.Power
After battery management system BMS work, whether detection charger work is normal, alarms if abnormal, is filled if normal by BMS actuation
Electric contactor is power battery charging by the high voltage power supply of charging gun, and uploads charging status information by BMS.
Specific embodiment is presented above, but the present invention is not limited to embodiment described above.The present invention
Basic ideas be above-mentioned basic scheme, for those of ordinary skill in the art, introduction according to the present invention is designed each
The model of kind deformation, formula, parameter do not need to spend creative work.The case where not departing from the principle and spirit of the invention
Under to embodiment carry out change, modification, replacement and modification still fall in protection scope of the present invention.
Claims (6)
1. a kind of charging circuit of automobile-used compatible 12V of pure electric coach and 24V charging, including interior high voltage dc bus and low
DC bus is pressed, the high voltage dc bus connects power battery, and connects the low-voltage direct by a DC/DC module
Bus；It is characterized in that, further including a boost module and a control unit, the boost module is at least used for 12V voltage
Switch to 24V voltage；The input terminal of the boost module connects a charging socket for accessing with charging gun, the boosting mould
The power end of the output end connection described control unit of block, and the output end of boost module passes through first switch (J1) connection
The low-voltage direct bus, is the low-voltage direct bussed supply, and the first switch (J1) is used for when accessing 24V charging gun
Conducting, disconnects when accessing 12V charging gun；Also string is opened equipped with second on route between the power battery and DC/DC module
It closes (K1), the second switch (K1) disconnects for being connected when accessing 12V charging gun when accessing 24V charging gun；The control
Unit control processed connects the first switch (J1), second switch (K1).
2. the charging circuit of the automobile-used compatible 12V of pure electric coach according to claim 1 and 24V charging, which is characterized in that
The first switch is low-voltage relay, and the second switch is high voltage connector.
3. the charging circuit of the automobile-used compatible 12V of pure electric coach according to claim 1 and 24V charging, which is characterized in that
The low-voltage direct bus is connected with low pressure electricity consumption module.
4. the charging circuit of the automobile-used compatible 12V of pure electric coach according to claim 3 and 24V charging, which is characterized in that
The low pressure electricity consumption module includes battery management system, entire car controller and remote monitoring module.
5. a kind of charging of the charging circuit using the automobile-used compatible 12V of pure electric coach as described in claim 1 and 24V charging
Method, which comprises the steps of:
The output voltage for detecting charging gun, when the output voltage for detecting charging gun is 24V, control conducting first switch, by filling
Electric rifle is low pressure electricity consumption module for power supply；
When the output voltage for detecting charging gun is 12V, control conducting second switch, and enabled conducting DC/DC module, by power
Battery is the low pressure electricity consumption module for power supply after DC/DC module decompression.
6. charging method according to claim 5, which is characterized in that the first switch is low-voltage relay, described the
Two switches are high voltage connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710353224.4A CN108944481A (en) | 2017-05-18 | 2017-05-18 | A kind of charging circuit and method of the automobile-used compatible 12V of pure electric coach and 24V charging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710353224.4A CN108944481A (en) | 2017-05-18 | 2017-05-18 | A kind of charging circuit and method of the automobile-used compatible 12V of pure electric coach and 24V charging |
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| Publication Number | Publication Date |
|---|---|
| CN108944481A true CN108944481A (en) | 2018-12-07 |
Family
ID=64461960
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710353224.4A Pending CN108944481A (en) | 2017-05-18 | 2017-05-18 | A kind of charging circuit and method of the automobile-used compatible 12V of pure electric coach and 24V charging |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107878250A (en) * | 2017-12-12 | 2018-04-06 | 奇瑞万达贵州客车股份有限公司 | A kind of electric motor coach charging boost voltage regulator |
| CN112140906A (en) * | 2019-06-28 | 2020-12-29 | 郑州宇通客车股份有限公司 | Vehicle and power supply control method and device thereof in charging state |
| CN113829927A (en) * | 2020-06-24 | 2021-12-24 | 比亚迪股份有限公司 | Train control method, train and train charging system control method |
| CN113829929A (en) * | 2020-06-24 | 2021-12-24 | 比亚迪股份有限公司 | Train, train control method and train charging system control method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011116330A (en) * | 2009-12-04 | 2011-06-16 | Hyundai Motor Co Ltd | Method for controlling charging voltage of 12v auxiliary battery for hybrid vehicle |
| CN104753141A (en) * | 2015-04-10 | 2015-07-01 | 成都雅骏新能源汽车科技股份有限公司 | 12V charging platform circuit compatible with and suitable for 24V platform electromobile |
| CN106004489A (en) * | 2016-06-01 | 2016-10-12 | 深圳市科列技术股份有限公司 | Automobile-mounted charger for electric automobile, charging method and electric automobile |
| CN106059033A (en) * | 2016-07-08 | 2016-10-26 | 厦门金龙旅行车有限公司 | Electric vehicle DC charging low-voltage power supply management system |
| CN205725000U (en) * | 2016-04-21 | 2016-11-23 | 郑州宇通客车股份有限公司 | A kind of charging system for motor-driven vehicle |
| CN205871772U (en) * | 2016-07-20 | 2017-01-11 | 北汽福田汽车股份有限公司 | Electric automobile's charging device and electric automobile |
| CN106558902A (en) * | 2017-01-23 | 2017-04-05 | 成都雅骏新能源汽车科技股份有限公司 | A kind of charging electric vehicle circuit and charging method |
| CN206884773U (en) * | 2017-05-18 | 2018-01-16 | 郑州宇通客车股份有限公司 | A kind of charging circuit of the automobile-used compatible 12V of pure electric coach and 24V chargings |
-
2017
- 2017-05-18 CN CN201710353224.4A patent/CN108944481A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011116330A (en) * | 2009-12-04 | 2011-06-16 | Hyundai Motor Co Ltd | Method for controlling charging voltage of 12v auxiliary battery for hybrid vehicle |
| CN104753141A (en) * | 2015-04-10 | 2015-07-01 | 成都雅骏新能源汽车科技股份有限公司 | 12V charging platform circuit compatible with and suitable for 24V platform electromobile |
| CN205725000U (en) * | 2016-04-21 | 2016-11-23 | 郑州宇通客车股份有限公司 | A kind of charging system for motor-driven vehicle |
| CN106004489A (en) * | 2016-06-01 | 2016-10-12 | 深圳市科列技术股份有限公司 | Automobile-mounted charger for electric automobile, charging method and electric automobile |
| CN106059033A (en) * | 2016-07-08 | 2016-10-26 | 厦门金龙旅行车有限公司 | Electric vehicle DC charging low-voltage power supply management system |
| CN205871772U (en) * | 2016-07-20 | 2017-01-11 | 北汽福田汽车股份有限公司 | Electric automobile's charging device and electric automobile |
| CN106558902A (en) * | 2017-01-23 | 2017-04-05 | 成都雅骏新能源汽车科技股份有限公司 | A kind of charging electric vehicle circuit and charging method |
| CN206884773U (en) * | 2017-05-18 | 2018-01-16 | 郑州宇通客车股份有限公司 | A kind of charging circuit of the automobile-used compatible 12V of pure electric coach and 24V chargings |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107878250A (en) * | 2017-12-12 | 2018-04-06 | 奇瑞万达贵州客车股份有限公司 | A kind of electric motor coach charging boost voltage regulator |
| CN112140906A (en) * | 2019-06-28 | 2020-12-29 | 郑州宇通客车股份有限公司 | Vehicle and power supply control method and device thereof in charging state |
| CN113829927A (en) * | 2020-06-24 | 2021-12-24 | 比亚迪股份有限公司 | Train control method, train and train charging system control method |
| CN113829929A (en) * | 2020-06-24 | 2021-12-24 | 比亚迪股份有限公司 | Train, train control method and train charging system control method |
| CN113829927B (en) * | 2020-06-24 | 2023-04-07 | 比亚迪股份有限公司 | Train control method, train and train charging system control method |
| CN113829929B (en) * | 2020-06-24 | 2023-04-07 | 比亚迪股份有限公司 | Train, train control method and train charging system control method |
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