CN205453185U - Simulated acquisition ware - Google Patents
Simulated acquisition ware Download PDFInfo
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- CN205453185U CN205453185U CN201521121139.8U CN201521121139U CN205453185U CN 205453185 U CN205453185 U CN 205453185U CN 201521121139 U CN201521121139 U CN 201521121139U CN 205453185 U CN205453185 U CN 205453185U
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- battery information
- acquisition device
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Abstract
The utility model provides a simulated acquisition ware, simulated acquisition ware and battery management system's CAN communication bus are connected, a plurality of collectors that battery management system includes the battery management ware, is connected through CAN communication bus and battery management ware to and correspond a plurality of battery modules of being connected with a plurality of collectors, simulated acquisition ware, include: battery module, CAN module and CPU module, battery module with the CPU module is connected and is done the CPU module provides the electric energy, CAN module and battery management system's CAN communication bus is connected, receives the current battery information of an arbitrary normal operating conditions's of CAN communication bus conveying battery module and sends battery information at this to the CPU module at present, the CPU module is received the CAN module is sent current battery information, the CPU module is according to the receipt current battery information obtains corresponding simulated battery information and conveys extremely the CAN module.
Description
Technical field
This utility model relates to automobile batteries field, particularly relates to the analog acquisition device used during battery failures.
Background technology
At present, the power supply of electric motor car is made up of set of cells, and set of cells is composed in series by several battery modules, and a battery modules has and comprises several monomers.Described battery management system includes battery manager, the multiple harvesters being connected by CAN communication bus with battery manager, and multiple battery modules of connection corresponding with multiple harvesters, when harvester obtains one of them battery modules fault, the harvester of corresponding fail battery module feeds back to battery manager fail battery information, the set of cells causing electric motor car can not carry out normal discharge and recharge, now, electric motor car cannot be carried out work.Then the battery modules broken down must be carried out depot repair, with grading system, the battery modules broken down be discharged, measure capacity, after pending fault battery modules is fixed, be re-filled with original electricity.The complex steps of this maintenance mode, workload are big, must use expensive grading system, and maintenance cost is at a relatively high, and efficiency is low.And the single battery module fault of electric motor car, the set of cells often leading to electric automobile cannot charge normal and discharge, and electric motor car cannot start, have to wait for trailer rescue and need keeping in repair in electric automobile to shop, time is long, and cost is high, causes great inconvenience to driver or user.
Utility model content
For solving at least one in the problems referred to above, this utility model provides analog acquisition device, described analog acquisition device is connected with the CAN communication bus of battery management system, described battery management system includes battery manager, the multiple harvesters being connected by CAN communication bus with battery manager, and multiple battery modules of connection corresponding with multiple harvesters, described analog acquisition device, including: battery module, CAN module and CPU module；
Described battery module is connected with described CPU module and provides electric energy for described CPU module；
Described CAN module is connected with the CAN communication bus of battery management system, receives the present battery information of the battery modules of any one normal operating conditions that CAN communication bus transmits and sends this current battery information to CPU module；
Described CPU module receives the described present battery information that described CAN module sends, and described CPU module is simulated battery information accordingly according to receiving described present battery information and is sent to described CAN module.
According to analog acquisition device of the present utility model, when battery modules breaks down, the battery modules broken down is replaced with analog acquisition device, the present battery information that other normal battery modules send is received by CPU, follow transmission simulated battery information, both can guarantee that vehicle can also normally fill point, electric discharge, can guarantee that again that battery manager received real battery modules total voltage value without causing the damage of vehicle circuit.Use according to analog acquisition device of the present utility model, ensure that electric motor car can also continue to work when battery modules fault, save maintenance time and maintenance cost, greatly facilitate the use of user.
Another purpose of the present utility model there is provided a kind of battery management analog systems, including battery management system, described battery management system includes battery manager, the multiple harvesters being connected with battery manager by CAN communication bus, and multiple battery modules of connection corresponding with multiple harvesters, described harvester gathers the battery information of multiple battery modules, described battery information includes normal battery information and fail battery information, it is characterized in that, battery management detecting system also includes above-described analog acquisition device, described analog acquisition device includes: battery module, CAN module and CPU module；
Described battery module is connected with described CPU module and provides electric energy for described CPU module；
Described CAN module is connected with the CAN communication bus of battery management system, receives the present battery information of the battery modules of any one normal operating conditions that CAN communication bus transmits and sends this current battery information to CPU module；
Described CPU module receives the described battery information that described CAN module sends, and described CPU is simulated battery information accordingly according to receiving described present battery information and is sent to described CAN module and is sent to battery manager eventually through CAN communication bus；
Described analog acquisition device and the battery modules one_to_one corresponding with described fail battery information are arranged.
Accompanying drawing explanation
Fig. 1 is the hardware elementary diagram of this utility model embodiment analog acquisition device.
Fig. 2 is the structural representation that this utility model embodiment analog acquisition device is applied in battery modules.
Detailed description of the invention
In order to make this utility model be solved the technical problem that, technical scheme and beneficial effect clearer, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain this utility model, is not used to limit this utility model.
Of the present utility model embodiment is described below in detail, and the example of described embodiment is shown in the drawings, and the most same or similar label represents same or similar element or has the element of same or like function.The embodiment described below with reference to accompanying drawing is exemplary, it is intended to be used for explaining this utility model, and it is not intended that to restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " laterally ", " length ", " width ", on " ", D score, " front ", " afterwards ", " left ", " right ", " vertically ", " level ", " push up ", " end ", " clockwise ", orientation or the position relationship of the instruction such as " counterclockwise " are based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplifies description, rather than indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or implicitly include at least one this feature.In description of the present utility model, " multiple " are meant that at least two, such as two, three etc., unless otherwise expressly limited specifically.
In this utility model, unless otherwise clearly defined and limited, term " is installed ", " being connected ", " connection ", the term such as " fixing " should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or integral；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be connection or the interaction relationship of two elements of two element internals, unless otherwise clear and definite restriction.For the ordinary skill in the art, above-mentioned term concrete meaning in this utility model can be understood as the case may be.
In this utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or be merely representative of fisrt feature level height higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height less than second feature.
Below in conjunction with the accompanying drawings and this utility model is described further by embodiment.
As shown in Figure 1 to Figure 2, this utility model provides analog acquisition device, analog acquisition device is connected with the CAN communication bus of battery management system, battery management system includes battery manager, the multiple harvesters being connected by CAN communication bus with battery manager, and multiple battery modules of connection corresponding with multiple harvesters, it is characterized in that, analog acquisition device, including: battery module, CAN module and CPU module；
Battery module is connected with CPU module and provides electric energy for CPU module；
CAN module is connected with the CAN communication bus of battery management system, receives the present battery information of the battery modules of any one normal operating conditions that CAN communication bus transmits and sends this current battery information to CPU module；
CPU module receives the present battery information that CAN module sends, and CPU module is simulated battery information accordingly according to receiving present battery information and is sent to CAN module.
Wherein CAN is the abbreviation of controller local area network (ControllerAreaNetwork, CAN), and CPU is the abbreviation of central processing unit (CentralProcessingUnit, CPU).
It is connected the TX circuit of oriented CPU module output present battery information between CAN module with CPU module and receives the RX circuit of the simulated battery information that CPU module transmits.
CAN module is connected with CAN communication bus by CAN_H circuit and CAN_L circuit.CAN module is by CAN_H circuit and CAN_L connection to battery manager, and by CAN_H circuit and CAN_L line transmission battery information.
Analog acquisition device also includes that the terminal resistance R, terminal resistance R that are connected in parallel between CAN_H circuit and CAN_L circuit connect with control switch K.Control switch K and control the connecting and disconnecting of terminal resistance R.When analog acquisition device is in the two ends of CAN communication bus, controls switch K and select connection terminal resistance R, terminal resistance R to carry out the impedance matching of CAN communication bus, it is ensured that the normal communication of CAN communication bus；When analog acquisition device is in other positions at CAN communication bus two ends, controls switch K and select disconnected end resistance R, it is ensured that the normal communication of CAN communication bus.
Battery information includes monomer voltage, battery modules total voltage, battery modules average voltage, monomer temperature, battery modules mean temperature.Electric vehicle power sources is made up of set of cells, and set of cells is composed in series by several battery modules, and battery modules has that to comprise several monomer series-connected.Monomer voltage in battery information is the voltage at monomer two ends in battery modules；Battery modules total voltage is all monomer series-connected total voltages in battery modules；Battery modules average voltage is the average voltage of single monomer in battery modules, is numerically equal to the total voltage of battery modules divided by the number of monomer in battery modules；Monomer temperature is the temperature of single monomer；Battery modules mean temperature is the mean temperature of battery modules.
It is illustrated in figure 1 the hardware elementary diagram of analog acquisition device.Wherein battery module provides electric energy for CPU module；CAN module is connected with the CAN communication bus of battery management system, receives the present battery information of the battery modules of any one normal operating conditions that CAN communication bus transmits and sends this current battery information to CPU module；CPU module receives the present battery information that CAN module sends, and CPU module is simulated battery information accordingly according to receiving present battery information and is sent to CAN module.
This utility model additionally provides a kind of battery management analog systems, including battery management system, battery management system includes battery manager, the multiple harvesters being connected by CAN communication bus with battery manager, and multiple battery modules of connection corresponding with multiple harvesters, harvester gathers the battery information of multiple battery modules, battery information includes normal battery information and fail battery information, battery management detecting system also includes above-described analog acquisition device, and analog acquisition device includes: battery module, CAN module and CPU module；
Battery module is connected with described CPU module and provides electric energy for described CPU module；
CAN module is connected with the CAN communication bus of battery management system, receives the present battery information of the battery modules of any one normal operating conditions that CAN communication bus transmits and sends this current battery information to CPU module；
CPU module receives the battery information that CAN module sends, and CPU is simulated battery information accordingly according to receiving present battery information and is sent to CAN module and is sent to battery manager eventually through CAN communication bus；
Analog acquisition device and the battery modules one_to_one corresponding with described fail battery information are arranged.
When battery modules breaks down, the battery modules of fault sends the battery information of mistake, causing trouble battery modules and other battery modules all can not normally discharge and recharge, thus cause whole battery failure.The harvester of the battery modules broken down is replaced, with pneumatic connecting lines fail battery module short circuit with analog acquisition device.The present battery information sent according to other battery modules received that analog acquisition device is real-time, follows the battery information sending simulation.Now, the present battery information that the simulated battery information that analog acquisition device sends and other battery modules send is all normal battery information.Other battery modules can also charge normal and discharge.Ensure that when electric vehicle-mounted battery modules breaks down, it is also possible to emergency, it is not necessary to wait for rescue trailer, can directly be reached maintenance store maintenance by driver, decrease maintenance time and cost.
Replace the harvester of the battery modules broken down with analog acquisition device when the battery modules of maintenance failure, fully charged for other normal battery modules, again the battery modules damaged is keeped in repair, and fully charged, finally the battery modules after maintenance well is installed back origin-location.Whole maintenance process is without using grading system, it is only necessary to the battery modules damaged individually is fixed and fully charged, and use analog acquisition device is fully charged for normal battery modules, then unification is installed, and saves maintenance time and maintenance cost.
According to analog acquisition device of the present utility model and battery management analog systems, when battery modules breaks down, the battery modules broken down is replaced with analog acquisition device, the present battery information that other normal battery modules send is received by CPU, follow transmission simulated battery information, both can guarantee that vehicle can also normally fill point, electric discharge, can guarantee that again that battery manager received real battery modules total voltage value without causing the damage of vehicle circuit.Use according to analog acquisition device of the present utility model, ensure that electric motor car can also continue to work when battery modules fault, save maintenance time and maintenance cost, convenient for users to use.
In the description of this specification, the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means that the specific features, structure, material or the feature that combine this embodiment or example description are contained at least one embodiment of the present utility model or example.In this manual, the schematic representation of above-mentioned term is necessarily directed to identical embodiment or example.And, the specific features of description, structure, material or feature can be to combine in one or more embodiments in office or example in an appropriate manner.Additionally, in the case of the most conflicting, the feature of the different embodiments described in this specification or example and different embodiment or example can be combined and combine by those skilled in the art.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all any amendment, equivalent and improvement etc. made within spirit of the present utility model and principle, within should be included in protection domain of the present utility model.
Claims (7)
1. analog acquisition device, described analog acquisition device is connected with the CAN communication bus of battery management system, described battery management system includes battery manager, the multiple harvesters being connected by CAN communication bus with battery manager, and multiple battery modules of connection corresponding with multiple harvesters, it is characterized in that, described analog acquisition device, including: battery module, CAN module and CPU module；
Described battery module is connected with described CPU module and provides electric energy for described CPU module；
Described CAN module is connected with the CAN communication bus of battery management system, receives the present battery information of the battery modules of any one normal operating conditions that CAN communication bus transmits and sends this current battery information to CPU module；
Described CPU module receives the described present battery information that described CAN module sends, and described CPU module is simulated battery information accordingly according to receiving described present battery information and is sent to described CAN module.
Analog acquisition device the most according to claim 1, it is characterized in that, be connected oriented described CPU module between described CAN module with described CPU module and export the TX circuit of described present battery information and receive the RX circuit of the described simulated battery information that described CPU module transmits.
Analog acquisition device the most according to claim 1, it is characterised in that described CAN module is connected with described CAN communication bus by CAN_H circuit and CAN_L circuit.
Analog acquisition device the most according to claim 1, it is characterised in that described analog acquisition device also includes that the terminal resistance R being connected in parallel between CAN_H circuit and CAN_L circuit, described terminal resistance R connect with control switch K.
Analog acquisition device the most according to claim 1, it is characterised in that described present battery information includes monomer voltage, battery modules total voltage, battery modules average voltage, monomer temperature, battery modules mean temperature.
Analog acquisition device the most according to claim 1, it is characterized in that, described simulated battery information is the simulated battery information that described CPU module obtains according to the described present battery information operation received and sends, including monomer voltage, battery modules total voltage, battery modules average voltage, monomer temperature, battery modules mean temperature.
7. a battery management analog systems, including battery management system, described battery management system includes battery manager, the multiple harvesters being connected with battery manager by CAN communication bus, and multiple battery modules of connection corresponding with multiple harvesters, described harvester gathers the battery information of multiple battery modules, described battery information includes normal battery information and fail battery information, it is characterized in that, battery management detecting system also includes according to the analog acquisition device described in claim 1-6 any one, described analog acquisition device includes: battery module, CAN module and CPU module；
Described battery module is connected with described CPU module and provides electric energy for described CPU module；
Described CAN module is connected with the CAN communication bus of battery management system, receives the present battery information of the battery modules of any one normal operating conditions that CAN communication bus transmits and sends this current battery information to CPU module；
Described CPU module receives the described battery information that described CAN module sends, and described CPU is simulated battery information accordingly according to receiving described present battery information and is sent to described CAN module and is sent to battery manager eventually through CAN communication bus；
Described analog acquisition device and the battery modules one_to_one corresponding with described fail battery information are arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521121139.8U CN205453185U (en) | 2015-12-31 | 2015-12-31 | Simulated acquisition ware |
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| CN201521121139.8U CN205453185U (en) | 2015-12-31 | 2015-12-31 | Simulated acquisition ware |
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| CN205453185U true CN205453185U (en) | 2016-08-10 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106841944A (en) * | 2017-01-24 | 2017-06-13 | 安徽锐能科技有限公司 | Battery management system insulating monitoring module detecting device |
| CN109917697A (en) * | 2017-12-13 | 2019-06-21 | 浙江万马新能源有限公司 | The channel CAN expanded circuit and its control method based on SPI interface |
-
2015
- 2015-12-31 CN CN201521121139.8U patent/CN205453185U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106841944A (en) * | 2017-01-24 | 2017-06-13 | 安徽锐能科技有限公司 | Battery management system insulating monitoring module detecting device |
| CN109917697A (en) * | 2017-12-13 | 2019-06-21 | 浙江万马新能源有限公司 | The channel CAN expanded circuit and its control method based on SPI interface |
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