CN203967791U - A kind of pure electric coach intelligent charge control system - Google Patents
A kind of pure electric coach intelligent charge control system Download PDFInfo
- Publication number
- CN203967791U CN203967791U CN201420338703.0U CN201420338703U CN203967791U CN 203967791 U CN203967791 U CN 203967791U CN 201420338703 U CN201420338703 U CN 201420338703U CN 203967791 U CN203967791 U CN 203967791U
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- China
- Prior art keywords
- charger
- contactor
- management system
- battery management
- low
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- Expired - Fee Related
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- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model provides a kind of pure electric coach intelligent charge control system, this system comprises battery management system, charger, high voltage connector and lv contactor, battery management system is connected with the coil of high voltage connector, charger is connected with power battery pack by the contact of high voltage connector, the coil of lv contactor is connected with charger, charger is connected with battery management system by the contact of lv contactor, and the low-voltage signal output of charger is connected with the low-voltage signal input of battery management system; The CAN signal output part of battery management system is connected with the CAN signal input part of charger.The utility model has been avoided may damaging high-voltage charging contactor because driver's misoperation disconnects key switch, has fundamentally solved the charging safety problem of pure electric coach, has improved the safety and reliability of car load.
Description
Technical field
The utility model relates to pure electric coach field of intelligent control technology, specifically a kind of pure electric coach intelligent charge control system.
Background technology
At present, the power battery pack of pure electric coach is in the time of charging, need closed car load key switch to adopt key power supply as battery management system power supply, if key switch disconnects, battery management system cisco unity malfunction, also with regard to uncontrollable closed charging contactor, cause power battery pack not fill electricity.In charging process, if driver's misoperation disconnects key switch, may damage charging contactor, affect car load safety.Consider the importance of safe charging to car load, be necessary to provide a kind of intelligent charge control mode, do not need closed key switch also can realize the intelligent charge control to power battery pack, thereby guarantee car load safety.
Utility model content
The purpose of this utility model is to provide a kind of pure electric coach intelligent charge control system, does not need closed key switch also can realize the intelligent charge control to power battery pack, improves the safety and reliability of car load.
The technical solution of the utility model is:
A kind of pure electric coach intelligent charge control system, comprise battery management system, charger and high voltage connector, the low-voltage output of described battery management system is connected with the coil anode of high voltage connector, the coil negativing ending grounding of described high voltage connector, the high-pressure side of described charger is connected with power battery pack by the contact of high voltage connector, this system also comprises lv contactor, the coil anode of described lv contactor is connected with the low-voltage output of charger, the coil negativing ending grounding of lv contactor, the contact input of lv contactor is connected with the low-voltage output of charger, the contact output of lv contactor is connected with the low pressure input of battery management system, the low-voltage signal output of described charger is connected to transmit charging confirmation signal with the low-voltage signal input of battery management system, the CAN signal output part of described battery management system is connected to transmit charging current setting signal with the CAN signal input part of charger.
Described pure electric coach intelligent charge control system, described lv contactor is selected single-pole double throw contactor, its contact Chang Kaiduan is connected with the low-voltage output of charger, and its contact common port is connected with the low pressure input of battery management system, and its contact normal-closed end is connected with key switch.
As shown from the above technical solution, the utility model adopts charger to provide working power for battery management system, without closed car load key switch, when battery management system receives after charging confirmation signal, can control closed high charging contactor, and by the size of the total line traffic control charging current of CAN, thereby realize the intelligent charge control of power battery pack, avoid may damaging high-voltage charging contactor because driver's misoperation disconnects key switch, fundamentally solve the charging safety problem of pure electric coach, improved the safety and reliability of car load.
Brief description of the drawings
Fig. 1 is electrical block diagram of the present utility model.
Embodiment
As shown in Figure 1, a kind of pure electric coach intelligent charge control system, comprises battery management system 1, charger 2, high voltage connector 3 and lv contactor 4.The low-voltage output of battery management system 1 is connected with the coil anode of high voltage connector 3, the coil negativing ending grounding of high voltage connector 3.The high pressure anode of charger 2 is connected with the positive pole of power battery pack 5 by the contact of high voltage connector 3, and the high pressure negative terminal of charger 2 is connected with the negative pole of power battery pack 5.
Lv contactor 4 is selected single-pole double throw contactor, and the coil anode of lv contactor 4 is connected with the low-voltage output of charger 2, the coil negativing ending grounding of lv contactor 4; The normally opened contact input of lv contactor 4 is connected with the low-voltage output of charger 2, and the normally opened contact output (being common port) of lv contactor 4 is connected with the low pressure input of battery management system 1; The normally-closed contact input of lv contactor 4 is connected with the output of key power supply by key switch 6.The low-voltage signal output of charger 2 is connected with the low-voltage signal input of battery management system 1, for transmitting charging confirmation signal; The CAN signal output part of battery management system 1 is connected with the CAN signal input part of charger 2, for transmitting charging current setting signal.
Operation principle of the present utility model:
S1, charger 2 provide low-tension supply for the coil of lv contactor 4, after this coil electricity, and the contact adhesive of lv contactor 4, charger 2 provides low-tension supply for battery management system 1;
S2, battery management system 1 receive after the charging confirmation signal that charger 2 sends by low-voltage line, for the coil of high voltage connector 3 provides low-tension supply, and after this coil electricity, the contact adhesive of high voltage connector 3;
S3, charger 2 receive after the charging current setting signal that battery management system 1 sends by CAN bus, and the size of the charging current of setting according to battery management system 1 is that power battery pack 5 is charged.
The utility model adopts charger 2 to provide low-voltage supply for battery management system 1, in the time that battery management system 1 receives by low-voltage line the charging confirmation signal that charger 2 sends, control the contact adhesive of high voltage connector 3, and by CAN bus and charger 2 communications, control the size of charging current.The utility model, without closed key switch, has fundamentally solved the charging safety problem of pure electric coach, has improved the safety and reliability of car load.
The above execution mode is only that preferred implementation of the present utility model is described; not scope of the present utility model is limited; do not departing under the prerequisite of the utility model design spirit; various distortion and improvement that those of ordinary skill in the art make the technical solution of the utility model, all should fall in the definite protection range of claims of the present utility model.
Claims (2)
1. a pure electric coach intelligent charge control system, comprise battery management system, charger and high voltage connector, the low-voltage output of described battery management system is connected with the coil anode of high voltage connector, the coil negativing ending grounding of described high voltage connector, the high-pressure side of described charger is connected with power battery pack by the contact of high voltage connector, it is characterized in that:
This system also comprises lv contactor, the coil anode of described lv contactor is connected with the low-voltage output of charger, the coil negativing ending grounding of lv contactor, the contact input of lv contactor is connected with the low-voltage output of charger, and the contact output of lv contactor is connected with the low pressure input of battery management system; The low-voltage signal output of described charger is connected to transmit charging confirmation signal with the low-voltage signal input of battery management system; The CAN signal output part of described battery management system is connected to transmit charging current setting signal with the CAN signal input part of charger.
2. pure electric coach intelligent charge control system according to claim 1, it is characterized in that: described lv contactor is selected single-pole double throw contactor, its contact Chang Kaiduan is connected with the low-voltage output of charger, its contact common port is connected with the low pressure input of battery management system, and its contact normal-closed end is connected with key switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420338703.0U CN203967791U (en) | 2014-06-24 | 2014-06-24 | A kind of pure electric coach intelligent charge control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420338703.0U CN203967791U (en) | 2014-06-24 | 2014-06-24 | A kind of pure electric coach intelligent charge control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203967791U true CN203967791U (en) | 2014-11-26 |
Family
ID=51928335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420338703.0U Expired - Fee Related CN203967791U (en) | 2014-06-24 | 2014-06-24 | A kind of pure electric coach intelligent charge control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203967791U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104052121A (en) * | 2014-06-24 | 2014-09-17 | 安徽安凯汽车股份有限公司 | Pure electric bus intelligent charging control system and control method thereof |
-
2014
- 2014-06-24 CN CN201420338703.0U patent/CN203967791U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104052121A (en) * | 2014-06-24 | 2014-09-17 | 安徽安凯汽车股份有限公司 | Pure electric bus intelligent charging control system and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141126 Termination date: 20190624 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |