CN212828224U - Control system of high-voltage loop of pure electric vehicle - Google Patents
Control system of high-voltage loop of pure electric vehicle Download PDFInfo
- Publication number
- CN212828224U CN212828224U CN202021762383.3U CN202021762383U CN212828224U CN 212828224 U CN212828224 U CN 212828224U CN 202021762383 U CN202021762383 U CN 202021762383U CN 212828224 U CN212828224 U CN 212828224U
- Authority
- CN
- China
- Prior art keywords
- relay
- main
- battery pack
- fuse
- pure electric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- Y02T10/72—Electric energy management in electromobility
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
A control system of a high-voltage loop of a pure electric vehicle comprises a battery pack assembly, a vehicle control unit and a motor controller, wherein the battery pack assembly comprises a power battery pack, a battery management system and a main negative relay, the main negative relay is in signal connection with the input end of the battery management system, the battery management system is in bidirectional signal connection with the vehicle control unit, and the output end of the vehicle control unit is in signal connection with a main positive relay; and a main positive relay, a motor controller and a main negative relay are sequentially connected between the positive pole and the negative pole of the power battery pack in series. The design can not only ensure the safe realization of the power-off of the travelling crane, but also ensure the safety when the charging is out of control, and the control difficulty is lower and the operation is convenient.
Description
Technical Field
The utility model relates to a pure electric vehicles's control system belongs to electric motor car braking safety technical field, especially relates to a pure electric vehicles high pressure loop's control system.
Background
Along with the popularization of electric automobiles, the market share is getting larger and larger, and the problem of automobile safety is increasingly outstanding, so a safe and effective control system needs to be designed to ensure that when the automobile has serious faults, the key and effective control can be realized, and the safety risk is reduced. The electric vehicle relates to high pressure, and the control safety on the return circuit is particularly important, but the prior art lacks the design of a targeted high-pressure return circuit, and increases the control difficulty.
The information disclosed in this background section is only for enhancement of understanding of the general background of the patent application and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The utility model aims at overcoming the higher defect and the problem of the control degree of difficulty that exist among the prior art, providing a control system of the lower pure electric automobile high-voltage circuit of the control degree of difficulty.
In order to achieve the above purpose, the technical solution of the utility model is that: a control system of a high-voltage loop of a pure electric vehicle comprises a battery pack assembly, a vehicle control unit and a motor controller, wherein the battery pack assembly comprises a power battery pack and a battery management system; the battery pack assembly further comprises a main negative relay, the main negative relay is in signal connection with the input end of the battery management system, the battery management system is in bidirectional signal connection with the vehicle control unit, and the output end of the vehicle control unit is in signal connection with the main positive relay;
and a main positive relay, a motor controller and a main negative relay are sequentially connected between the positive pole and the negative pole of the power battery pack in series.
The main negative relay comprises a main negative switch and a main negative coil, two ends of the main negative switch are respectively connected with the power battery pack and the motor controller, and two ends of the main negative coil are respectively connected with the battery management system and the grounding end.
The battery package assembly still includes battery package fuse and main loop fuse, series connection has battery package fuse, main loop fuse, main positive relay, machine controller, main negative relay in proper order between the positive, negative pole of power battery package.
The specification of the battery pack fuse is 400A, and the specification of the main circuit fuse is 350A.
The main positive relay is connected with a pre-charging relay in parallel, two ends of the pre-charging relay are respectively connected with the main circuit fuse and the motor controller, and the pre-charging relay is in signal connection with the output end of the vehicle control unit.
And the pre-charging relay is connected with the joint of the main positive relay and the motor controller after sequentially passing through the diode and the pre-charging resistor.
The battery pack fuse and the main loop fuse are connected with the junction of the main negative relay and the motor controller sequentially through the quick charging relay and the quick charging port.
And the quick charging relay is connected with the quick charging port in series through the quick charging fuse.
The specification of the quick-charging fuse is 150A.
And the output end of the motor controller is connected with the driving motor.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model relates to a control system of a high-voltage loop of a pure electric vehicle, which comprises a power battery pack, a main negative relay, a battery management system, a vehicle control unit and a motor controller, wherein the main negative relay is in signal connection with the input end of the battery management system, the battery management system is in bidirectional signal connection with the vehicle control unit, the output end of the vehicle control unit is in signal connection with a main positive relay, and the main positive relay, the motor controller and the main negative relay are sequentially connected in series between the positive pole and the negative pole of the power battery pack, when in application, when serious faults (such as insulation faults, out-of-control battery pack heating system and the like) occur in the power-off process of the vehicle, and the command of disconnecting the main positive relay is not executed or lost, the battery management system in the system can actively disconnect the main negative relay according to the danger degree of the current batteries, convenient operation and safety accident prevention. Therefore, the utility model discloses can not only ensure the safe realization of driving under the electricity, the control degree of difficulty is lower moreover.
2. The utility model relates to an among pure electric vehicles high voltage loop's the control system, still include the relay that fills soon and fill the mouth that charges soon, this moment, power battery package just, between the negative pole series connection has the relay that fills soon in proper order, fill the mouth that charges soon, main negative relay, during the application, in charging process, when the machine that charges out of control appears, when machine output voltage and current value exceed battery management system and ask for value, this system can cut off main negative relay through battery management system initiative, prevent that the battery from overcharging, guarantee vehicle safety, the operation is very convenient. Therefore, the utility model discloses safety when can not only ensureing to charge out of control, the control degree of difficulty is lower moreover.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: the system comprises a battery pack fuse 1, a power battery pack 2, a battery management system 3, a main negative relay 4, a main negative switch 41, a main negative coil 42, a vehicle control unit 5, a quick charge relay 6, a quick charge fuse 7, a quick charge port 8, a pre-charge relay 9, a pre-charge resistor 10, a motor controller 11, a main circuit fuse 12, a main positive relay 13, a driving motor 14, a diode 15 and a battery pack assembly 16.
Detailed Description
The present invention will be described in further detail with reference to the following description and embodiments in conjunction with the accompanying drawings.
Referring to fig. 1, a control system of a high-voltage circuit of a pure electric vehicle includes a battery pack assembly 16, a vehicle controller 5 and a motor controller 11, and the battery pack assembly 16 includes a power battery pack 2 and a battery management system 3; the battery pack assembly 16 further comprises a main negative relay 4, the main negative relay 4 is in signal connection with an input end of the battery management system 3, the battery management system 3 is in bidirectional signal connection with the vehicle control unit 5, and an output end of the vehicle control unit 5 is in signal connection with a main positive relay 13;
and a main positive relay 13, a motor controller 11 and a main negative relay 4 are sequentially connected in series between the positive pole and the negative pole of the power battery pack 2.
The main negative relay 4 comprises a main negative switch 41 and a main negative coil 42, two ends of the main negative switch 41 are respectively connected with the power battery pack 2 and the motor controller 11, and two ends of the main negative coil 42 are respectively connected with the battery management system 3 and a grounding terminal.
The battery pack assembly 16 further comprises a battery pack fuse 1 and a main circuit fuse 12, and the battery pack fuse 1, the main circuit fuse 12, a main positive relay 13, a motor controller 11 and a main negative relay 4 are sequentially connected between the positive pole and the negative pole of the power battery pack 2 in series.
The specification of the battery pack fuse 1 is 400A, and the specification of the main circuit fuse 12 is 350A.
The main positive relay 13 is connected in parallel with a pre-charging relay 9, two ends of the pre-charging relay 9 are respectively connected with the main circuit fuse 12 and the motor controller 11, and the pre-charging relay 9 is in signal connection with the output end of the vehicle control unit 5.
The pre-charging relay 9 is connected with the junction of the main positive relay 13 and the motor controller 11 after sequentially passing through the diode 15 and the pre-charging resistor 10.
The junction of the battery pack fuse 1 and the main loop fuse 12 is connected with the junction of the main negative relay 4 and the motor controller 11 after sequentially passing through the quick-charging relay 6 and the quick-charging port 8.
And the quick charging relay 6 is connected with a quick charging port 8 in series through a quick charging fuse 7.
The specification of the quick-charging fuse 7 is 150A.
The output of the motor controller 11 is connected to a drive motor 14.
Example 1:
referring to fig. 1, a control system of a high-voltage loop of a pure electric vehicle comprises a power battery pack 2, a battery management system 3, a main negative relay 4, a vehicle control unit 5 and a motor controller 11, wherein the main negative relay 4 is in signal connection with an input end of the battery management system 3, the battery management system 3 is in bidirectional signal connection with the vehicle control unit 5, an output end of the vehicle control unit 5 is in signal connection with a main positive relay 13, and a pre-charging relay 9 is connected in parallel to the side of the main positive relay 13; and a main positive relay 13, a motor controller 11 and a main negative relay 4 are sequentially connected in series between the positive pole and the negative pole of the power battery pack 2.
When the vehicle runs and works in a power-off mode, the vehicle control unit 5 receives a vehicle starting instruction from a driver, the battery management system 3 receives the instruction of the vehicle control unit 5 and requires to close the main negative relay 4, then the vehicle control unit 5 sends an instruction to close the pre-charging relay 9, then the main positive relay 13 is closed, and the high voltage on the vehicle is successfully applied, so that the vehicle runs normally. When a serious fault occurs, the normal power-off instruction is to disconnect the main positive relay 13 and then disconnect the main negative relay 4, when the main positive relay 13 is adhered or the power-off instruction is not received due to signal transmission loss, at the moment, the whole vehicle is in a state of incapable of descending high voltage, and if the battery management system 3 detects the serious fault (such as insulation fault, out-of-control heating of a battery pack and the like), the battery management system 3 can forcibly instruct the main negative relay 4 to disconnect, so that the safety of the vehicle is ensured.
Example 2:
referring to fig. 1, a control system of a high-voltage loop of a pure electric vehicle comprises a power battery pack 2, a battery management system 3, a main negative relay 4, a vehicle control unit 5, a quick charge relay 6, a quick charge port 8 and a motor controller 11, wherein the main negative relay 4 is in signal connection with an input end of the battery management system 3, the battery management system 3 is in bidirectional signal connection with the vehicle control unit 5, and an output end of the vehicle control unit 5 is in signal connection with a main positive relay 13; and a quick charging relay 6, a quick charging port 8 and a main negative relay 4 are sequentially connected in series between the positive electrode and the negative electrode of the power battery pack 2.
When finishing charging, the machine of charging is out of control and under the condition of 7 adhesions of quick charge fuse, fills electric pile and can be continuously for power battery package 2 charges, can lead to overcharging, and during this condition, battery management system 3 can force the order to cut off main negative relay 4, prevents that the battery from overcharging, guarantees vehicle safety.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment, but all equivalent modifications or changes made by those skilled in the art according to the present invention should be included in the protection scope of the claims.
Claims (10)
1. The utility model provides a control system of pure electric vehicles high pressure return circuit, includes battery package assembly (16), vehicle control unit (5) and machine controller (11), and battery package assembly (16) include power battery package (2) and battery management system (3), its characterized in that: the battery pack assembly (16) further comprises a main negative relay (4), the main negative relay (4) is in signal connection with the input end of the battery management system (3), the battery management system (3) is in bidirectional signal connection with the vehicle control unit (5), and the output end of the vehicle control unit (5) is in signal connection with the main positive relay (13);
and a main positive relay (13), a motor controller (11) and a main negative relay (4) are sequentially connected in series between the positive pole and the negative pole of the power battery pack (2).
2. The control system of the high-voltage circuit of the pure electric vehicle as claimed in claim 1, wherein: the main negative relay (4) comprises a main negative switch (41) and a main negative coil (42), two ends of the main negative switch (41) are respectively connected with the power battery pack (2) and the motor controller (11), and two ends of the main negative coil (42) are respectively connected with the battery management system (3) and a grounding end.
3. The control system of the high-voltage circuit of the pure electric vehicle as claimed in claim 1 or 2, characterized in that: the battery pack assembly (16) further comprises a battery pack fuse (1) and a main circuit fuse (12), and the battery pack fuse (1), the main circuit fuse (12), a main positive relay (13), a motor controller (11) and a main negative relay (4) are sequentially connected between the positive pole and the negative pole of the power battery pack (2) in series.
4. The control system of a high-voltage circuit of a pure electric vehicle according to claim 3, characterized in that: the specification of the battery pack fuse (1) is 400A, and the specification of the main circuit fuse (12) is 350A.
5. The control system of a high-voltage circuit of a pure electric vehicle according to claim 3, characterized in that: the side of the main positive relay (13) is connected in parallel with a pre-charging relay (9), two ends of the pre-charging relay (9) are respectively connected with a main circuit fuse (12) and a motor controller (11), and the pre-charging relay (9) is in signal connection with the output end of the vehicle control unit (5).
6. The control system of a high-voltage circuit of a pure electric vehicle according to claim 5, characterized in that: the pre-charging relay (9) is connected with the joint of the main positive relay (13) and the motor controller (11) after sequentially passing through the diode (15) and the pre-charging resistor (10).
7. The control system of a high-voltage circuit of a pure electric vehicle according to claim 3, characterized in that: the battery pack fuse protector is characterized in that the junction of the battery pack fuse protector (1) and the main loop fuse protector (12) is connected with the junction of the main negative relay (4) and the motor controller (11) after passing through the quick-charging relay (6) and the quick-charging port (8) in sequence.
8. The control system of a high-voltage circuit of a pure electric vehicle according to claim 7, characterized in that: and the quick charging relay (6) is connected with the quick charging port (8) in series through a quick charging fuse (7).
9. The control system of a high-voltage circuit of a pure electric vehicle according to claim 8, characterized in that: the specification of the quick-charging fuse (7) is 150A.
10. The control system of the high-voltage circuit of the pure electric vehicle as claimed in claim 1 or 2, characterized in that: the output end of the motor controller (11) is connected with a driving motor (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021762383.3U CN212828224U (en) | 2020-08-21 | 2020-08-21 | Control system of high-voltage loop of pure electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021762383.3U CN212828224U (en) | 2020-08-21 | 2020-08-21 | Control system of high-voltage loop of pure electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212828224U true CN212828224U (en) | 2021-03-30 |
Family
ID=75138055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021762383.3U Active CN212828224U (en) | 2020-08-21 | 2020-08-21 | Control system of high-voltage loop of pure electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212828224U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114228572A (en) * | 2021-12-14 | 2022-03-25 | 法法汽车(中国)有限公司 | Battery pack heating control device and method and vehicle |
-
2020
- 2020-08-21 CN CN202021762383.3U patent/CN212828224U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114228572A (en) * | 2021-12-14 | 2022-03-25 | 法法汽车(中国)有限公司 | Battery pack heating control device and method and vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104085312B (en) | A kind of cell management system of electric automobile | |
| CN102837617B (en) | Power-off control method and device for high-voltage system of electric automobile | |
| CN204367903U (en) | A kind of electrokinetic cell bag | |
| CN101596901A (en) | A kind of safety monitoring system of electronlmobil and method for supervising thereof | |
| CN104527446A (en) | High-pressure safety electric interlocking mechanism of electro-mobile, control method and electro-mobile | |
| CN111284366A (en) | Power battery charging heating circuit, control method thereof and electric automobile | |
| CN205632165U (en) | Power battery increases journey system | |
| US20200247340A1 (en) | Vehicle power supply system | |
| CN111532137A (en) | High-voltage power-on and power-off control method for new energy automobile | |
| CN110341483B (en) | Detection system and detection method for motor controller of electric vehicle | |
| CN104777423A (en) | Method for detecting state of relay in high-voltage system of nickel-hydrogen hybrid electric vehicle | |
| CN110962606A (en) | Control system and method for emergency cut-off of high-voltage power supply of new energy automobile and new energy automobile | |
| CN104842814A (en) | Double-line redundancy safety high-voltage equipment of light bus and control system and method thereof | |
| CN111907330A (en) | Control method of main and negative relays of large integrated architecture of pure electric vehicle under communication fault | |
| CN212828224U (en) | Control system of high-voltage loop of pure electric vehicle | |
| CN112659969A (en) | Double-branch power battery control system and method | |
| CN209096492U (en) | Power battery assembly of electric automobile and automobile | |
| CN202753795U (en) | Electric car high-voltage crashing outage device | |
| CN110053497A (en) | A kind of movable charging vehicle charging system | |
| CN101954868A (en) | Collision protection device and method of electromobile | |
| CN114228752B (en) | Energy storage system suitable for virtual track guide train | |
| CN113147481A (en) | Double-quick-charging control system and method for electric automobile | |
| CN212149000U (en) | Emergency power supply device for automobile electric power steering | |
| CN214001351U (en) | Range-extended pure electric vehicle safety interlocking loop signal detection loop | |
| CN113002304A (en) | Safety protection circuit for vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |