CN207984603U - A kind of main control module of battery management system - Google Patents
A kind of main control module of battery management system Download PDFInfo
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- CN207984603U CN207984603U CN201820234857.3U CN201820234857U CN207984603U CN 207984603 U CN207984603 U CN 207984603U CN 201820234857 U CN201820234857 U CN 201820234857U CN 207984603 U CN207984603 U CN 207984603U
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- main control
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- control module
- primary processor
- power supply
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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
Abstract
The utility model discloses a kind of main control modules of battery management system, including primary processor, CAN bus component and relay driving component；Relay driving component include respectively with the positive relay of master, main cathode electric appliance and the matched high side drivers of preliminary filling relay and low side driver；Main control module further includes the insulating resistor detecting circuit being connected with primary processor, high-voltage interlocking detection circuit and power control circuit；Power control circuit includes power supply main control unit, wake source Input Interface Unit and clock signal unit；Wake source Input Interface Unit, power supply main control unit with and primary processor be sequentially connected；Also, the power supply main control unit is sequentially connected with clock signal unit and primary processor.By the way of the driving of the utility model relay is controlled simultaneously using high and low side, the stability and reliability of entire battery management system are improved；And the identification that can carry out wake source further recognizes vehicle and wakes up BMS specifically corresponding man-machine interfaces.
Description
Technical field
The utility model is related to technical field of battery management more particularly to a kind of main control modules of battery management system.
Background technology
New energy technology has become the focus on research direction of current automobile technical field, existing battery management system
BMS controls the scheme of high-voltage relay as shown in Figure 1, accordingly, the scheme of main control module is as shown in fig. 2, it can be seen that existing
Technical solution in, the main control module of battery management system is comparatively simple and crude, there is no consider vehicle use environment and work(
The requirement of energy safety, for example in the design of hardware, consider that the driving of relay needs to use the same time control in high and low side
The mode of system；There is no the identifications of the various wake sources in view of BMS, in the case of None- identified wake source, and can not know
It is that vehicle is clipped to wake up BMS for which man-machine interface；Also, from the point of view of existing technical solution, also without adequately pre-
Reserve enough storage devices.Wherein, in original system, insulation resistance acquisition scheme does balance bridge scheme to realize,
This just needs effectively be attached by measuring circuit between high and low pressure system, and original system schema is not
It considers.
The utility model is optimized by the framework to BMU main boards so that entire BMU is in the master of core status
The function of control module obtains more optimized setting, realizes the function of entire BMS well, hence for the entire cell tube of control
The function of reason has more practical operation meaning.
Utility model content
In order to solve the above-mentioned technical problem, the utility model provides a kind of main control module of battery management system, including
Primary processor, CAN bus component and relay driving component；The relay driving component include respectively with the positive relay of master
Device, main cathode electric appliance and the matched high side drivers of preliminary filling relay and low side driver；
The main control module further includes the insulating resistor detecting circuit being connected with the primary processor, high-voltage interlocking detection electricity
Road and power control circuit；The power control circuit includes power supply main control unit, wake source Input Interface Unit and clock letter
Number unit；The wake source Input Interface Unit, power supply main control unit with and primary processor be sequentially connected；Also, the power supply
Main control unit is sequentially connected with clock signal unit and primary processor.
Further, the high-voltage interlocking detection circuit includes that high-voltage interlocking control detection circuit and high-voltage interlocking state are returned
Examine circuit；
The high-voltage interlocking control detection circuit is connected with the circuit where high-voltage load；The high-voltage interlocking state returns inspection
One end of circuit is connected with the circuit where the high-voltage load, and the other end is connected with the primary processor.
Further, the main control module further includes cooling line temperature detector, the cooling line temperature detector
Including cooling line water inlet temperature detector and cooling line outlet temperature detector.
Further, the main control module further includes storage circuit, the storage circuit include FLASH memory and
Eeprom memory.
Further, the main control module further includes processor detection circuit, and the processor detection circuit includes main place
Manage detector and main process task restorer.
Further, the CAN bus component includes vehicle CAN communication bus, privately owned CAN communication bus and fast charge CAN
Communication bus.
Further, it is gone here and there by SPI serial communications circuit and CAN between the power supply main control unit and the primary processor
Port communications circuit is connected.
Further, the relay driving component further includes multiple relay driving power supplies.
Further, the wake source Input Interface Unit includes that ACC signaling interfaces, IG1 signaling interfaces, IG2 signals connect
Mouth, TEM signaling interfaces.
Further, the power supply main control unit is circumscribed with voltage follower circuit, and the voltage follower circuit includes multichannel
Power supply circuit and voltage-stablizer.
The main control module of battery management system provided by the utility model, wherein the driving of relay is same using high and low side
When the mode that controls, improve the stability and reliability of entire battery management system.The power supply main control unit of the utility model
The identification of wake source can be carried out, and can further recognize vehicle and wake up BMS specifically corresponding man-machine interfaces.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the structure chart of existing battery management system；
Fig. 2 is the structure chart of the main control module of existing battery management system；
The frame diagram of the main control module for the battery management system that Fig. 3 embodiments provide；
Fig. 4 is the topological structure figure of the main control module for the battery management system that embodiment provides.
In figure：Primary processor 1, CAN bus component 2, relay driving component 3, insulating resistor detecting circuit 4, high pressure is mutual
Lock detection circuit 5, power control circuit 6, cooling line temperature detector 7, storage circuit 8, processor detection circuit 9.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are in the premise for not making creative work
Lower obtained every other embodiment, shall fall within the protection scope of the present invention.
Embodiment：
A kind of main control module of battery management system is present embodiments provided, primary structure frame diagram is illustrated in figure 3；Packet
Include primary processor 1, CAN bus component 2 and relay driving component 3.
The relay driving component 3 includes to match respectively with the positive relay of master, main cathode electric appliance and preliminary filling relay
The high side drivers and low side driver of conjunction；Specifically, as shown in figure 4, main positive relay corresponds to main positive relay flash drive
Dynamic, the low side driving of the positive relay of master；Main negative relay corresponds to main cathode electric appliance flash driving, the low side driving of main cathode electric appliance；
Preliminary filling relay corresponds to the driving of preliminary filling relay flash, the low side driving of preliminary filling relay.Wherein, relay driving component 3
Belong to the output par, c in main control module, by way of considering using high and low side to control the driving of relay simultaneously, carries
The high stability and reliability of entire battery management system.Further, the relay driving component 3 further include it is multiple after
Electrical equipment drive power supply corresponds to two relay driving power supply circuits in Fig. 4.
The main control module further includes the insulating resistor detecting circuit 4 being connected with the primary processor 1, high-voltage interlocking detection
Circuit 5 and power control circuit 6；Wherein, the insulating resistor detecting circuit 4 is connected with the high-pressure modular of battery management system,
Insulation values for obtaining the high-pressure modular are compared with default insulation values according to the insulation values of acquisition, judge the height
Whether pressing mold group belongs to insulation fault state；In the case where judging to belong to insulation fault state, by corresponding fault message
It is sent to the primary processor 1, the output of information is controlled by the primary processor 1, to make driver know failure problems.
It is for what high-voltage interlocking detection circuit 5 gave explanation：
The high-voltage interlocking detection circuit 5 includes that high-voltage interlocking control detection circuit and high-voltage interlocking state return inspection circuit；
The high-voltage interlocking control detection circuit is connected with the circuit where high-voltage load；The high-voltage interlocking state returns the one of inspection circuit
End is connected with the circuit where the high-voltage load, and the other end is connected with the primary processor 1.
Specifically process is：Circuit where high-voltage interlocking control from the detection circuit to the high-voltage load sends one
Source signal is detected, the detection source signal obtains back inspection signal in the loop transfer where high-voltage load, returns inspection signal later and returns
Inspection circuit is returned back to the high-voltage interlocking state, the high-voltage interlocking state time inspection circuit will return inspection signal and send the main place to
Device 1 is managed, the primary processor 1 analyzes and determines out whether the high tension loop of external charge and discharge is connection according to time inspection signal
Normally.
It is for what power control circuit 6 gave explanation：
The power control circuit 6 includes power supply main control unit, wake source Input Interface Unit and clock signal unit；Institute
State wake source Input Interface Unit, power supply main control unit with and primary processor 1 be sequentially connected；Also, the power supply main control unit
It is sequentially connected with clock signal unit and primary processor 1.
The wake source Input Interface Unit specifically includes ACC signaling interfaces, IG1 signaling interfaces, IG2 signaling interfaces, TEM
Signaling interface.Wherein, the wake source Input Interface Unit is the man-machine interface importation of the main control module, i.e. low tension
The importation in source；It can correspond in Fig. 4, it includes ACC signals, IG1 signals, IG2 signals and TEM signals to wake up source signal.
When wake-up source signal comes, all modules in entire BMS all initially enter Job readiness.
Wherein, clock signal unit (the real-time clock RTC in Fig. 4) is used for timing, he can set according to primary processor 1
Clock signal (such as how long when starting timing or timing) carry out timing；Reach the corresponding time
Afterwards, the interface of wake source Input Interface Unit can export trigger signal (namely waking up source signal), electricity to power supply main control unit
Source main control unit identifies which wakes up source signal, later, because passing through SPI between power supply main control unit and primary processor MCU
Communication, power supply main control unit are just told this information to MCU；And then MCU will know be which type signal input
Enter.
In detail, it is gone here and there by SPI serial communications circuit and CAN between the power supply main control unit and the primary processor 1
Port communications circuit is connected.The power supply main control unit can recognize that the wake-up source signal sent, and detect corresponding
External man-machine interface, and then so that BMS is entered corresponding operating mode according to the wake-up source signal.
Further, the power supply main control unit is circumscribed with voltage follower circuit, and the voltage follower circuit includes multichannel
Power supply circuit and voltage-stablizer.It corresponds in Fig. 4, the power supply circuit of multiple-channel output includes the 5VD to power for analog signal, is number
Signal-powered 5VA, and for the 3.3V for externally fed.Also, it can also be obtained according to the voltage stabilizing that needs to carry out of microcontroller
A specific voltage value is taken, such as in Fig. 4, the 3.3V voltages of output are connected with LDO low pressure difference linear voltage regulators, export later
1.2V voltage values are powered for corresponding microcontroller；The voltage value of 1.25V can also be obtained as needed.
Giving explanation to CAN bus component 2 is：
The CAN bus component 2 includes vehicle CAN communication bus, privately owned CAN communication bus and fast charge CAN communication bus.
Wherein, privately owned CAN communication bus is the CAN communication that battery management system BMS is individually communicated with entire car controller VCU, by BMS institutes
Some internal informations are individually communicated by privately owned CAN with entire car controller VCU；That is, it is contemplated that all information of BMS are all
It needs to send VCU to, the higher reason of traffic load rate of bus, this communicates relate only to entire car controller and cell tube all the way
The two points of reason system.
The main control module can also further be optimized, specifically：
The main control module further includes cooling line temperature detector 7, and the cooling line temperature detector 7 includes cooling
Pipeline water inlet temperature detector and cooling line outlet temperature detector；Pass through the water inlet to entirely cooling down heat management circuit
Mouth temperature and outlet temperature are monitored, and realize organic operation of whole system well.
The main control module further includes storage circuit 8, and the storage circuit 8 includes that FLASH memory and EEPROM are stored
Device can also include other External memory equipments so that mitigate the burden of the primary processor 1.
The main control module further includes processor detection circuit 9, and the processor detection circuit 9 includes main process task detector
With main process task restorer.Such as the watchdog circuit in Fig. 4, information transmission packet between the watchdog circuit and primary processor 1
Two paths of signals, feeding-dog signal and reset signal are included, for detecting whether the running software inside the primary processor 1MCU fails；
Specifically, the software inside MCU is periodically required to feed dog to watchdog circuit, that is, regularly greets；If greeting just
Often, then illustrate that the running software inside MCU is normal；If not greeting regularly, watchdog circuit is to the master
Processor 1 sends reset signal, and primary processor 1MCU is made to carry out from the beginning.It is carried out by processor detection circuit 9 internal soft
The automatic detection of part operation, and can automatically reset in the case where running software fails and restart to run, and then improve
The control efficiency of main control module.
The main control module of battery management system provided by the utility model, wherein the driving of relay is same using high and low side
When the mode that controls, improve the stability and reliability of entire battery management system.The power supply main control unit of the utility model
The identification of wake source can be carried out, and can further recognize vehicle and wake up BMS specifically corresponding man-machine interfaces.This practicality is new
The main control module of type reserves the storage that enough storage resources carry out data, further mitigates the burden of primary processor.This
The cooling line temperature detector of utility model passes through the water inlet temperature and outlet temperature to entirely cooling down heat management circuit
It is monitored, realizes organic operation of whole system well.The utility model is carried out internal by processor detection circuit
The automatic detection of running software, and can automatically reset in the case where running software fails and restart to run, and then promoted
The control efficiency of main control module.
The function of the main control module of the utility model is optimized, and realizes the function of entire BMS well, hence for
The function of controlling entire battery management has more practical operation meaning.
In the utility model embodiment unless specifically defined or limited otherwise, term " installation ", " connects " connected "
Connect ", the terms such as " fixation " shall be understood in a broad sense, for example, can make to be fixedly connected, may be a detachable connection, or integral；
It can be mechanical connection, can also be electrical connection；It can make to be connected directly, can also indirectly connected through an intermediary, it can be with
It is the interaction relationship of the connection or two elements inside two elements.For the ordinary skill in the art, may be used
To understand the concrete meaning of above-mentioned term in the present invention as the case may be.
The above is preferred embodiments of the present invention, it is noted that for the ordinary skill of the art
For personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these are improved and profit
Decorations are also considered as the scope of protection of the utility model.
Claims (10)
1. a kind of main control module of battery management system, including primary processor (1), CAN bus component (2) and relay driving group
Part (3)；It is characterized in that, the relay driving component include respectively with the positive relay of master, main cathode electric appliance and preliminary filling relay
The matched high side drivers of device and low side driver；
The main control module further includes the insulating resistor detecting circuit (4) being connected with the primary processor, high-voltage interlocking detection electricity
Road (5) and power control circuit (6)；The power control circuit include power supply main control unit, wake source Input Interface Unit and
Clock signal unit；The wake source Input Interface Unit, power supply main control unit with and primary processor be sequentially connected electrically；Also,
The power supply main control unit is sequentially connected electrically with clock signal unit and primary processor.
2. main control module according to claim 1, which is characterized in that the high-voltage interlocking detection circuit (5) includes high pressure
Mutual lock control detection circuit and high-voltage interlocking state return inspection circuit；
The high-voltage interlocking control detection circuit is connected with the circuit where high-voltage load；The high-voltage interlocking state returns inspection circuit
One end be connected with the circuit where the high-voltage load, the other end is connected with the primary processor.
3. main control module according to claim 1, which is characterized in that the main control module further includes the inspection of cooling line temperature
Device (7) is surveyed, the cooling line temperature detector (7) includes cooling line water inlet temperature detector and cooling line water outlet
Temperature detector.
4. main control module according to claim 1, which is characterized in that the main control module further includes storage circuit (8), institute
It includes FLASH memory and eeprom memory to state storage circuit (8).
5. main control module according to claim 1, which is characterized in that the main control module further includes processor detection circuit
(9), the processor detection circuit (9) includes main process task detector and main process task restorer.
6. main control module according to claim 1, which is characterized in that the CAN bus component includes that vehicle CAN communication is total
Line, privately owned CAN communication bus and fast charge CAN communication bus.
7. main control module according to claim 1, which is characterized in that the power supply main control unit and the primary processor it
Between be connected with CAN serial communication circuits by SPI serial communications circuit.
8. main control module according to claim 1, which is characterized in that the relay driving component further includes multiple relays
Device drives power supply.
9. main control module according to claim 1, which is characterized in that the wake source Input Interface Unit includes ACC letters
Number interface, IG1 signaling interfaces, IG2 signaling interfaces, TEM signaling interfaces.
10. according to any main control modules of claim 1-9, which is characterized in that the power supply main control unit is circumscribed with electricity
Voltage follower circuit, the voltage follower circuit include multiple-way supply circuit and voltage-stablizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820234857.3U CN207984603U (en) | 2018-02-09 | 2018-02-09 | A kind of main control module of battery management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820234857.3U CN207984603U (en) | 2018-02-09 | 2018-02-09 | A kind of main control module of battery management system |
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| CN207984603U true CN207984603U (en) | 2018-10-19 |
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| CN201820234857.3U Active CN207984603U (en) | 2018-02-09 | 2018-02-09 | A kind of main control module of battery management system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113162147A (en) * | 2021-03-24 | 2021-07-23 | 浙江合众新能源汽车有限公司 | Bilateral-drive battery charging relay safety control system and method |
| CN114859785A (en) * | 2022-05-06 | 2022-08-05 | 重庆标能瑞源储能技术研究院有限公司 | Novel engineering machine tool BMS controller |
-
2018
- 2018-02-09 CN CN201820234857.3U patent/CN207984603U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113162147A (en) * | 2021-03-24 | 2021-07-23 | 浙江合众新能源汽车有限公司 | Bilateral-drive battery charging relay safety control system and method |
| CN114859785A (en) * | 2022-05-06 | 2022-08-05 | 重庆标能瑞源储能技术研究院有限公司 | Novel engineering machine tool BMS controller |
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