CN108819779B - Charging system and electric automobile - Google Patents
Charging system and electric automobile Download PDFInfo
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- CN108819779B CN108819779B CN201810737465.3A CN201810737465A CN108819779B CN 108819779 B CN108819779 B CN 108819779B CN 201810737465 A CN201810737465 A CN 201810737465A CN 108819779 B CN108819779 B CN 108819779B
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- 238000006243 chemical reaction Methods 0.000 claims description 40
- 230000004044 response Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 5
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- 230000002159 abnormal effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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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
- B60L2250/00—Driver interactions
- B60L2250/16—Driver interactions by display
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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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- 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
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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
- 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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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides a charging system and an electric automobile, and relates to the technical field of automobile charging, wherein the charging system comprises: the charging interface is used for being connected with the direct current charging pile or the alternating current charging pile through a charging gun; the power battery is respectively connected to the charging interface through an alternating current charging circuit and a direct current charging circuit, a first control switch is arranged on the alternating current charging circuit, and a second control switch is arranged on the direct current charging circuit; the connection state confirmation unit is connected with the charging interface and used for detecting the connection states of the charging interface, the direct current charging pile and the alternating current charging pile; the controller is respectively connected with the connection state confirmation unit, the first control switch and the second control switch and is used for controlling the first control switch to be closed and the second control switch to be opened when the charging interface is connected with the alternating-current charging pile; when the charging interface is connected with the direct current charging pile, the first control switch is controlled to be disconnected, and the second control switch is controlled to be closed. The scheme of the invention simplifies the system structure and saves the arrangement space.
Description
Technical Field
The invention belongs to the technical field of automobile charging, and particularly relates to a charging system and an electric automobile.
Background
With the development of economic technology, automobiles are more and more popular, and in order to meet the requirements of energy conservation and emission reduction, an electric automobile is gradually a leading product in the automobile market as a novel green environment-friendly vehicle.
In the prior art, in order to charge the electric vehicle by different charging modes, two charging interfaces and two charging systems respectively matched with the two charging interfaces are arranged on the electric vehicle, one is to slowly charge a power battery of the electric vehicle by using alternating current under the condition that the time of a user is abundant, and the other is to quickly charge the power battery of the electric vehicle by using direct current under the condition that the time of the user is short; therefore, the charging system is complex, occupies much space of the whole vehicle and has high cost.
Disclosure of Invention
The embodiment of the invention aims to provide a charging system and an electric automobile, so that the problems that the charging system of the electric automobile is complex, the occupied whole automobile layout space is large and the cost is high in the prior art are solved.
In order to achieve the above object, the present invention provides a charging system applied to an electric vehicle, including:
the charging interface is used for being connected with the direct current charging pile or the alternating current charging pile through a charging gun;
the power battery is respectively connected to the charging interface through an alternating current charging circuit and a direct current charging circuit, wherein the alternating current charging circuit is provided with a first control switch, and the direct current charging circuit is provided with a second control switch;
the connection state confirmation unit is connected with the charging interface and used for detecting the connection states of the charging interface, the direct current charging pile and the alternating current charging pile;
the controller is respectively connected with the connection state confirmation unit, the first control switch and the second control switch, and is used for controlling the first control switch to be in a closed state and the second control switch to be in an open state when the connection state confirmation unit detects that the charging interface is connected with the alternating-current charging pile; when the connection state confirmation unit detects that the charging interface is connected with the direct current charging pile, the first control switch is controlled to be in a disconnected state, and the second control switch is controlled to be in a closed state.
The connection state confirming unit is used for determining that the charging interface is connected with the direct current charging pile when detecting that the resistance value of the charging interface is a first preset resistance value; when the resistance value of the charging interface is detected to be a second preset resistance value, it is determined that the charging interface is connected with the alternating-current charging pile, wherein the first preset resistance value is smaller than the second preset resistance value.
The controller is further used for controlling the first control switch and the second control switch to be in a disconnection state when the connection state confirmation unit detects that the charging interface is not connected with the alternating-current charging pile and the direct-current charging pile.
The controller is used for outputting a first signal by a first output end of the controller to close the first control switch when the connection state confirmation unit detects that the charging interface is connected with the alternating-current charging pile; when the connection state confirmation unit detects that the charging interface is connected with the direct current charging pile, a second output end of the controller outputs a second signal to close the second control switch.
The charging system further comprises a first signal acquisition circuit connected between a first output end and a first input end of the controller, and a second signal acquisition circuit connected between a second output end and a second input end of the controller;
the first signal acquisition circuit is used for acquiring the first signal and feeding the first signal back to the controller; the controller is used for outputting a first fault signal to an instrument desk of the electric automobile when the first signal is different from a first preset signal;
the second signal acquisition circuit is used for acquiring the second signal and feeding the second signal back to the controller; the controller is used for outputting a second fault signal to the instrument desk when the second signal is different from a second preset signal.
A first voltage conversion circuit is connected between the first output end and the first control switch, and a second voltage conversion circuit is connected between the second output end and the second control switch;
the first voltage conversion circuit is used for responding to the first signal and outputting a first voltage signal with a first voltage value to the first control switch to close the first control switch; the second voltage conversion circuit is used for responding to the second signal and outputting a second voltage signal with a second voltage value to the second control switch to close the second control switch.
Wherein the charging system further comprises: a third signal acquisition circuit and a fourth signal acquisition circuit; the third signal acquisition circuit is connected between the output end of the first voltage conversion circuit and the third input end of the controller; the fourth signal acquisition circuit is connected between the output end of the second voltage conversion circuit and the fourth input end of the controller;
the third signal acquisition circuit is used for acquiring a first voltage signal output by the first voltage conversion circuit and feeding back the first voltage signal to the controller; the controller is used for outputting a third fault signal to an instrument desk of the electric automobile when the first voltage signal is different from a first preset voltage signal;
the fourth signal acquisition circuit is used for acquiring a second voltage signal output by the second voltage conversion circuit and feeding back the second voltage signal to the controller; the controller is used for outputting a fourth fault signal to the instrument desk when the second voltage signal is different from a second preset voltage.
The charging system further comprises a vehicle-mounted charger arranged between the first control switch and the power battery and used for converting alternating current output by the alternating current charging pile into direct current.
The controller is further used for controlling the vehicle-mounted charger to start after the first control switch is controlled to be closed.
The invention also provides an electric automobile which comprises the charging system.
The technical scheme of the invention at least has the following beneficial effects:
according to the embodiment of the invention, only one charging interface is arranged on the electric automobile and is respectively connected with the power battery through the alternating current charging line and the direct current charging line, so that when the power battery of the electric automobile is charged, alternating current charging or direct current charging is realized through the same charging interface, the number of charging harnesses of the electric automobile is reduced, and the cost is saved; the arrangement space of the charging system is saved, and the whole vehicle is convenient to arrange; meanwhile, the charging process of the user is simpler and more convenient.
Drawings
Fig. 1 is a first schematic diagram of a charging system according to an embodiment of the invention;
fig. 2 is a second schematic diagram of a charging system according to an embodiment of the invention.
Description of reference numerals:
the device comprises a charging interface 1, a power battery 2, an alternating current charging circuit 3, a direct current charging circuit 4, a connection state confirmation unit 5, a controller 6, a first control switch 31, a vehicle-mounted charger 32, a second control switch 41, a first voltage conversion circuit 71, a second voltage conversion circuit 72, a first signal acquisition circuit 81, a second signal acquisition circuit 82, a third signal acquisition circuit 83 and a fourth signal acquisition circuit 84.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
The embodiment of the invention provides a charging system and an electric automobile, aiming at the problems that in the prior art, the direct current charging system for quick charging and the alternating current charging system for slow charging on the electric automobile are two independent systems, so that the occupied space is large, the cost is high, the integration of the direct current charging system and the alternating current charging system is realized, a user can realize direct current quick charging and alternating current slow charging through one charging interface, the charging process is simplified, the arrangement space is saved, and the cost is reduced.
As shown in fig. 1, an embodiment of the present invention provides a charging system for an electric vehicle, including: the charging interface 1 is used for being connected with a direct current charging pile or an alternating current charging pile through a charging gun; the power battery 2 is respectively connected to the charging interface 1 through an alternating current charging circuit 3 and a direct current charging circuit 4, wherein the alternating current charging circuit 3 is provided with a first control switch 31, and the direct current charging circuit 4 is provided with a second control switch 41; a connection state confirmation unit 5 connected to the charging interface 1, and configured to detect a connection state between the charging interface 1 and the dc charging pile and the ac charging pile; the controller 6 is connected with the connection state confirmation unit 5, the first control switch 31 and the second control switch 41, and is configured to control the first control switch 31 to be in a closed state and the second control switch 41 to be in an open state when the connection state confirmation unit 5 detects that the charging interface 1 is connected with the ac charging pile; when the connection state confirmation unit 5 detects that the charging interface 1 is connected to the dc charging pile, the first control switch 31 is controlled to be in an off state, and the second control switch 41 is controlled to be in an on state.
In the embodiment of the invention, the charging interface 1 is an interface arranged on a body of an electric vehicle, preferably, the charging interface 1 can be an original direct current charging interface on the electric vehicle, and an alternating current/direct current switching interface can be arranged between the charging interface 1 and the charging gun during alternating current charging, so that the charging interface 1 is connected with an alternating current charging pile according to user requirements to realize slow alternating current charging, or the charging interface 1 is connected with the direct current charging pile to realize fast direct current charging. The electric automobile is provided with the charging interface, so that quick charging and slow charging are realized, a slow charging harness assembly is saved, and the arrangement of the whole automobile is simplified.
According to the embodiment of the invention, the first control switch 31 is controlled to be in a closed state, so that the charging interface 1 is connected with the power battery 2 through the alternating current charging circuit 3, and alternating current slow charging is completed; through control second control switch 41 is the closure state, realizes charge interface 1 with power battery 2 passes through direct current charging line 4 feeds through, accomplishes the direct current and charges soon, has simplified the charging process.
Specifically, the connection state confirmation unit 5 is configured to determine that the charging interface 1 is connected to the dc charging pile when detecting that the resistance value of the charging interface 1 is a first preset resistance value; when the resistance value of the charging interface 1 is detected to be a second preset resistance value, it is determined that the charging interface 1 is connected with the alternating-current charging pile, wherein the first preset resistance value is smaller than the second preset resistance value.
It should be noted that the resistance value of the charging interface 1 detected by the connection state confirmation unit 5 is a resistance value in the charging gun, and the first preset resistance value and the second preset resistance value are resistance values determined according to an electric vehicle charging standard.
In order to avoid that at least one of the first control switch 31 and the second control switch 41 is in a closed state when the charging interface 1 is connected to the ac charging pile or the dc charging pile, and the power battery 2 is damaged due to erroneous charging, the controller 6 according to the embodiment of the present invention is further configured to control both the first control switch 31 and the second control switch 41 to be in an open state when the connection state determination unit 5 detects that the charging interface 1 is not connected to the ac charging pile or the dc charging pile.
The specific process of controlling the first control switch 31 and the second control switch 41 to be turned on or turned off by the controller 6 is that when the connection state confirmation unit 5 detects that the charging interface 1 is connected with the ac charging pile, a first output end of the controller 6 outputs a first signal to turn on the first control switch 31; when the connection state confirmation unit 5 detects that the charging interface 1 is connected to the dc charging pile, the second output terminal of the controller 6 outputs a second signal to close the second control switch 41.
In order to avoid the abnormal signal output by the controller 6 due to the failure of the controller 6, causing abnormal charging, and causing damage to the power battery 2 or the equipment in the charging system, the signal output by the controller 6 needs to be detected, and therefore, as shown in fig. 2, the charging system according to the embodiment of the present invention further includes: a first signal acquisition circuit 81 connected between a first output terminal and a first input terminal of the controller 6, and a second signal acquisition circuit 82 connected between a second output terminal and a second input terminal of the controller 6.
Specifically, the first signal acquisition circuit 81 is configured to acquire the first signal and feed back the first signal to the controller 6; the controller 6 is used for outputting a first fault signal to an instrument desk of the electric automobile when the first signal is different from the first preset signal, so as to remind a user; at the same time, the controller 6 is put into a failure mode to stop operating.
Specifically, the second signal acquisition circuit 82 is configured to acquire the second signal and feed back the second signal to the controller 6; the controller 6 is configured to output a second fault signal to the instrument desk when the second signal is different from the second preset signal, so as to remind a user, and at the same time, the controller 6 is in a fault mode so as to stop working.
In order to reduce the energy consumption of the electric vehicle during the charging process, preferably, the controller 6 in this embodiment is a single chip, and the first control switch 31 and the second control switch 41 are both relays. Since the signal output by the single chip microcomputer is 3.3V high level or 0V low level, and the control voltage required when the relay is closed is 12V or 24V, voltage conversion circuits are connected between the controller 6 and the first control switch 31, and between the controller 6 and the second control switch 41.
As shown in fig. 2, a first voltage conversion circuit 71 is connected between the first output terminal and the first control switch 31, and a second voltage conversion circuit 72 is connected between the second output terminal and the second control switch 41.
Specifically, the first voltage conversion circuit 71 is configured to output a first voltage signal having a first voltage value to the first control switch 31 in response to the first signal, so as to close the first control switch 31; the second voltage conversion circuit 72 is configured to output a second voltage signal having a second voltage value to the second control switch 41 in response to the second signal, so as to close the second control switch 41.
Similarly, in order to avoid that the first control switch 31 cannot be closed due to the failure of the first voltage conversion circuit 71 when the charging interface 1 is connected with the ac charging pile, or that the second control switch 41 cannot be closed due to the failure of the second voltage conversion circuit 72 when the charging interface 1 is connected with the dc charging pile, and finally the power battery 2 cannot be normally charged; or, when the first control switch 31 or the second control switch 41 needs to be turned off, the normal turning-off cannot be performed, so that the power battery 2 or other elements in the charging system are damaged; it is also necessary to detect the voltage signals output from the first voltage conversion circuit 71 and the second voltage conversion circuit 72.
Therefore, the charging system in the embodiment of the present invention further includes: a third signal acquisition circuit 83 and a fourth signal acquisition circuit 84; the third signal acquisition circuit 83 is connected between the output end of the first voltage conversion circuit 71 and the third input end of the controller 6; the fourth signal acquisition circuit 84 is connected between the output terminal of the second voltage conversion circuit 72 and the fourth input terminal of the controller 6.
Specifically, the third signal acquisition circuit 83 is configured to acquire a first voltage signal output by the first voltage conversion circuit 71, and feed back the first voltage signal to the controller 6; the controller 6 is used for outputting a third fault signal to an instrument desk of the electric automobile when the first voltage signal is different from the first preset voltage signal, so as to remind a user; and putting itself in a failure mode, stopping charging the power battery 2.
Specifically, the fourth signal collecting circuit 84 is configured to collect a second voltage signal output by the second voltage converting circuit 72, and feed back the second voltage signal to the controller 6; and the controller 6 is used for outputting a fourth fault signal to the instrument desk when the second voltage signal is different from the second preset voltage, so as to remind a user, enable the user to be in a fault mode and stop charging the power battery 2.
Here, it should be noted that, when the controller 6 detects whether the signal output by itself is abnormal, the first voltage signal output by the first voltage conversion circuit 71 or the second voltage signal output by the second voltage conversion circuit 72, the controller 6 needs to further combine the received connection states of the charging interface 1, the dc charging pile and the ac charging pile; such as: when the charging interface 1 is connected with the direct-current charging pile, if the first signal output by the controller 6 is detected to be not 3.3V voltage, the controller is determined to have a fault, and if the first signal is 3.3V, the controller is determined to have a normal function; if the first voltage signal output by the first voltage conversion circuit 71 is detected not to be the voltage (such as 12V or 24V) required when the first control switch 31 is closed, it is determined that the first voltage conversion circuit 71 is in a fault state, and if the first voltage signal is the voltage required when the first control switch 31 is closed, it is determined that the first voltage conversion circuit 71 is in a normal function state. Similarly, when the charging interface 1 is connected to the ac charging pile, the controller 6 sequentially detects a failure condition of itself and a failure condition of the second voltage conversion circuit 72.
Of course, in order to avoid that the second control switch 41 is closed when the charging interface 1 is connected to the ac charging pile, when the signal output by the first output terminal of the controller 6 and the first voltage signal output by the first voltage conversion circuit 71 are detected, the controller 6 may also simultaneously detect whether the signal output by the second output terminal and the voltage signal output by the second voltage conversion circuit 72 satisfy the condition that the second control switch 41 is turned off, and if not, the controller 6 also needs to output a fault signal to the instrument desk, and put itself in a fault mode, and stop charging the power battery 2.
In addition, since the ac charging line 3 and the dc charging line 4 are both provided with two cables, the first control switch 31 and the second control switch 41 may be both relays having two paths; each path controls one cable to be connected or disconnected; or, for the sake of safety, the charging system according to the embodiment of the present invention may include a control switch on each cable, so that a voltage converting circuit needs to be disposed between each control switch and the output terminal of the controller 6.
Because the alternating current charging pile outputs alternating current and the power battery 2 outputs direct current, a vehicle-mounted charger 32 is further arranged in the alternating current charging circuit 3, and the vehicle-mounted charger 32 is used for converting the alternating current output by the alternating current charging pile into the direct current. The controller 6 is further configured to control the vehicle-mounted charger 32 to start after controlling the first control switch 31 to be closed. Preferably, the vehicle-mounted charger 32 is connected between the first control switch 31 and the power battery 2, so that when the charging interface 1 is connected with the alternating-current charging pile, direct current flows into the vehicle-mounted charger 32, and the vehicle-mounted charger 32 is prevented from being damaged.
In addition, the controller 6, the first signal acquisition circuit 81, the second signal acquisition circuit 82, the third signal acquisition circuit 83, the fourth signal acquisition circuit 84, the first voltage conversion circuit 71 and the second voltage conversion circuit 72 of the embodiment of the present invention may also be integrated with the connection state confirmation unit 5 as a charging management unit, or integrated in the vehicle-mounted charger 32, so as to further reduce the space occupied by the charging system.
The embodiment of the invention also provides an electric automobile which comprises the charging system.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (8)
1. A charging system is applied to an electric automobile and is characterized by comprising:
the charging interface (1) is used for being connected with the direct current charging pile or the alternating current charging pile through a charging gun;
the power battery (2) is respectively connected to the charging interface (1) through an alternating current charging circuit (3) and a direct current charging circuit (4), wherein a first control switch (31) is arranged on the alternating current charging circuit (3), and a second control switch (41) is arranged on the direct current charging circuit (4);
the connection state confirmation unit (5) is connected with the charging interface (1) and used for detecting the connection states of the charging interface (1) and the direct current charging pile and the alternating current charging pile;
the controller (6) is respectively connected with the connection state confirmation unit (5), the first control switch (31) and the second control switch (41), and is used for controlling the first control switch (31) to be in a closed state and controlling the second control switch (41) to be in an open state when the connection state confirmation unit (5) detects that the charging interface (1) is connected with the alternating-current charging pile; when the connection state confirmation unit (5) detects that the charging interface (1) is connected with the direct current charging pile, the first control switch (31) is controlled to be in an open state, and the second control switch (41) is controlled to be in a closed state;
the controller (6) is used for outputting a first signal by a first output end of the controller (6) to close the first control switch (31) when the connection state confirmation unit (5) detects that the charging interface (1) is connected with the alternating-current charging pile; when the connection state confirmation unit (5) detects that the charging interface (1) is connected with the direct current charging pile, a second output end of the controller (6) outputs a second signal to close the second control switch (41);
wherein the charging system further comprises a first signal acquisition circuit (81) connected between a first output terminal and a first input terminal of the controller (6), a second signal acquisition circuit (82) connected between a second output terminal and a second input terminal of the controller (6);
the first signal acquisition circuit (81) is used for acquiring the first signal and feeding the first signal back to the controller (6); the controller (6) is used for outputting a first fault signal to an instrument desk of the electric automobile and switching to a fault mode when the first signal is different from a first preset signal;
the second signal acquisition circuit (82) is used for acquiring the second signal and feeding the second signal back to the controller (6); and the controller (6) is used for outputting a second fault signal to the instrument desk and switching to a fault mode when the second signal is different from a second preset signal.
2. The charging system according to claim 1, wherein the connection status confirmation unit (5) is configured to determine that the charging interface (1) is connected to the dc charging pile when detecting that the resistance value of the charging interface (1) is a first preset resistance value; when the resistance value of the charging interface (1) is detected to be a second preset resistance value, the charging interface (1) is determined to be connected with the alternating-current charging pile, wherein the first preset resistance value is smaller than the second preset resistance value.
3. The charging system according to claim 1, wherein the controller (6) is further configured to control the first control switch (31) and the second control switch (41) to be in an off state when the connection state confirmation unit (5) detects that the charging interface (1) is not connected to the ac charging post and the dc charging post.
4. The charging system according to claim 1, wherein a first voltage conversion circuit (71) is connected between the first output terminal and the first control switch (31), and a second voltage conversion circuit (72) is connected between the second output terminal and the second control switch (41);
the first voltage conversion circuit (71) is used for responding to the first signal and outputting a first voltage signal with a first voltage value to the first control switch (31) so that the first control switch (31) is closed; the second voltage conversion circuit (72) is configured to output a second voltage signal having a second voltage value to the second control switch (41) in response to the second signal, so that the second control switch (41) is closed.
5. The charging system of claim 4, further comprising: a third signal acquisition circuit (83) and a fourth signal acquisition circuit (84); wherein the third signal acquisition circuit (83) is connected between the output end of the first voltage conversion circuit (71) and the third input end of the controller (6); the fourth signal acquisition circuit (84) is connected between the output end of the second voltage conversion circuit (72) and the fourth input end of the controller (6);
the third signal acquisition circuit (83) is used for acquiring a first voltage signal output by the first voltage conversion circuit (71) and feeding the first voltage signal back to the controller (6); the controller (6) is used for outputting a third fault signal to an instrument desk of the electric automobile when the first voltage signal is different from a first preset voltage signal;
the fourth signal acquisition circuit (84) is used for acquiring a second voltage signal output by the second voltage conversion circuit (72) and feeding the second voltage signal back to the controller (6); the controller (6) is used for outputting a fourth fault signal to the instrument desk when the second voltage signal is different from a second preset voltage.
6. The charging system according to claim 1, characterized in that it further comprises an onboard charger (32) arranged between the first control switch (31) and the power battery (2) for converting the alternating current output by the alternating-current charging post into direct current.
7. The charging system according to claim 6, characterized in that the controller (6) is further configured to control the vehicle-mounted charger (32) to start after controlling the first control switch (31) to close.
8. An electric vehicle characterized by comprising the charging system according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810737465.3A CN108819779B (en) | 2018-07-06 | 2018-07-06 | Charging system and electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810737465.3A CN108819779B (en) | 2018-07-06 | 2018-07-06 | Charging system and electric automobile |
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| Publication Number | Publication Date |
|---|---|
| CN108819779A CN108819779A (en) | 2018-11-16 |
| CN108819779B true CN108819779B (en) | 2020-07-28 |
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| CN201810737465.3A Active CN108819779B (en) | 2018-07-06 | 2018-07-06 | Charging system and electric automobile |
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| CN110148544B (en) * | 2019-05-05 | 2021-06-04 | 北京新能源汽车股份有限公司 | Method and device for preventing relay from being adhered |
| CN112109552A (en) * | 2019-06-21 | 2020-12-22 | 天津艾康尼克新能源汽车有限公司 | A kind of automobile high-voltage power supply circuit, automobile and automobile power supply control method |
| CN112117787A (en) * | 2019-06-21 | 2020-12-22 | 天津艾康尼克新能源汽车有限公司 | An electric vehicle charging system, an electric vehicle and a control method for vehicle charging |
| CN110370973A (en) * | 2019-07-12 | 2019-10-25 | 深圳市展旺智慧交通网络科技有限公司 | A kind of wired charging stake |
| CN110682818A (en) * | 2019-10-23 | 2020-01-14 | 西安电子科技大学芜湖研究院 | Novel universal charging management mechanism for electric automobile |
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