CN204361728U - A kind of current monitoring device for battery management system - Google Patents
A kind of current monitoring device for battery management system Download PDFInfo
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- CN204361728U CN204361728U CN201420866962.0U CN201420866962U CN204361728U CN 204361728 U CN204361728 U CN 204361728U CN 201420866962 U CN201420866962 U CN 201420866962U CN 204361728 U CN204361728 U CN 204361728U
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- current sensor
- current
- management system
- battery management
- monitoring device
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Abstract
The utility model discloses a kind of current monitoring device for battery management system, comprise: battery management system, power battery module and other electric components, described current monitoring device also comprises: the first current sensor and the second current sensor, and described first current sensor, described second current sensor, described power battery module and other electric components described form a series circuit; Described battery management system is respectively described first current sensor and described second current sensor provides power supply, and the current information collected is transferred to described battery management system by described first current sensor and described second current sensor respectively.The utility model achieves the reliable measurements of electric current under the high-acruracy survey of electric current under normal running conditions and failure condition.
Description
Technical field
The utility model relates to electric vehicle engineering field, particularly relates to a kind of current monitoring device for battery management system.
Background technology
Along with country continues to increase the investment of electric automobile, electric vehicle engineering is developed rapidly.It is power that electric automobile refers to vehicle power, drives wheels travel with motor, meets the vehicle of road traffic, safety regulations requirements.It uses the electricity stored in the battery to start.Sometimes using 12 or 24 pieces of batteries when driving automobile, sometimes then needing more.The composition of electric automobile comprises: driven by power and the mechanical system such as control system, actuating force transmission, complete the equipment etc. of assigned tasks.Driven by power and control system are the cores of electric automobile, are also the maximum differences being different from internal-combustion engines vehicle.Driven by power and control system are made up of the speed-regulating control device etc. of drive motor, power supply and motor.Other devices of electric automobile are basic identical with internal-combustion engines vehicle.
In order to ensure that the battery management system of vehicle-mounted energy-storage system inside can ensure the trouble free service of power brick more reliably, need be optimized the collection of power brick direct current and control, guaranteeing that over current fault can not cause any damage to vehicle-mounted energy-storage system.
Utility model content
The utility model provides a kind of current monitoring device for battery management system, the utility model uses two current sensors gather respectively the running current of electrokinetic cell bag and fault current and monitor, meet the needs of knowing clearly in practical application, described below:
For a current monitoring device for battery management system, comprising: battery management system and power battery module, described current monitoring device also comprises: the first current sensor and the second current sensor,
Described first current sensor, described second current sensor and described power battery module form a series circuit;
Described battery management system is respectively described first current sensor and described second current sensor provides power supply, and the current information collected is transferred to described battery management system by described first current sensor and described second current sensor respectively.
The beneficial effect of the technical scheme that the utility model provides is: the utility model uses two current sensors with range and precision gather respectively the running current of electrokinetic cell bag and fault current and monitor; make safe and reliable under all kinds of condition of work, electric current being gathered of battery management system energy; achieve the reliable measurements of electric current under the high-acruracy survey of electric current under normal running conditions and failure condition, meet the requirement of safeguard protection.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the current monitoring device for battery management system.
In accompanying drawing, the list of parts representated by each label is as follows:
1: battery management system; 2: the first current sensors;
3: the second current sensors; 4: power battery module;
5: other electric components.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly, below the utility model execution mode is described in further detail.
A kind of current monitoring device for battery management system, see Fig. 1, comprise: battery management system 1, first current sensor 2, second current sensor 3, power battery module 4 and other electric components 5 (such as: the circuit board and electronic devices and components etc. thereof of high-voltage DC contactor, fuse, pre-charge contactor and pre-charge resistance, battery management system), the first current sensor 2, second current sensor 3, power battery module 4 and other electric components 5 form a series circuit; Battery management system 1 is respectively the first current sensor 2 and the second current sensor 3 provides power supply, and the current information collected is transferred to battery management system 1 by the first current sensor 2 and the second current sensor 3 respectively.
Be described below in detail the operation principle of this current monitoring device: the first current sensor 2 and the second current sensor 3 are powered by battery management system 1, the output signal of the first current sensor 2 and the second current sensor 3 also transfers to battery management system 1.Battery management system 1 all carries out continuous acquisition to the signal of the first current sensor 2 and the second current sensor 3 under all kinds of mode of operations of electrokinetic cell bag.In the normal mode of operation, the high precision electro flow valuve that the first current sensor 2 gathers is used for the calculating of SOC; Under nonserviceabling, the low precision current value gathered by the second current sensor 3 is used for the calculating (concrete calculation procedure is conventionally known to one of skill in the art, and the utility model embodiment does not repeat this) of safety control strategy.
Wherein, normal mode of operation for electrokinetic cell bag according to whole-control system by judging the control command that the driving demand of driver sends, and export electrical energy drive motor driven systems, vehicle advanced or retreats, or carrying out the mode of operations such as braking energy feedback.
Wherein, malfunction is damaged for being subject to the vehicle mounted electric sub-components such as impact or power drive system due to power brick or vehicle, and the power brick operating current caused exceedes this state of the current margin comprised under above-mentioned normal mode of operation.
The utility model embodiment is to the model of each device except doing specified otherwise, and the model of other devices does not limit, as long as can complete the device of above-mentioned functions.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, above-mentioned the utility model embodiment sequence number, just to describing, does not represent the quality of embodiment.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (1)
1. for a current monitoring device for battery management system, comprising: battery management system and power battery module, is characterized in that, described current monitoring device also comprises: the first current sensor and the second current sensor,
Described first current sensor, described second current sensor and described power battery module form a series circuit;
Described battery management system is respectively described first current sensor and described second current sensor provides power supply, and the current information collected is transferred to described battery management system by described first current sensor and described second current sensor respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420866962.0U CN204361728U (en) | 2014-12-31 | 2014-12-31 | A kind of current monitoring device for battery management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420866962.0U CN204361728U (en) | 2014-12-31 | 2014-12-31 | A kind of current monitoring device for battery management system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204361728U true CN204361728U (en) | 2015-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420866962.0U Expired - Fee Related CN204361728U (en) | 2014-12-31 | 2014-12-31 | A kind of current monitoring device for battery management system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204361728U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107150609A (en) * | 2017-06-19 | 2017-09-12 | 镇江宇神动力能源有限公司 | A kind of current monitoring device of battery management system |
-
2014
- 2014-12-31 CN CN201420866962.0U patent/CN204361728U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107150609A (en) * | 2017-06-19 | 2017-09-12 | 镇江宇神动力能源有限公司 | A kind of current monitoring device of battery management system |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150527 Termination date: 20201231 |