CN108725233A - Battery management system and vehicle management system with all the period of time monitoring - Google Patents

Battery management system and vehicle management system with all the period of time monitoring Download PDF

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Publication number
CN108725233A
CN108725233A CN201710284517.1A CN201710284517A CN108725233A CN 108725233 A CN108725233 A CN 108725233A CN 201710284517 A CN201710284517 A CN 201710284517A CN 108725233 A CN108725233 A CN 108725233A
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China
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management system
vehicle
battery management
battery
low
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CN108725233B (en
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王斌刚
陈银银
黄彬伟
赵清
陈爽
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Zhengzhou Yutong Bus Co Ltd
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Zhengzhou Yutong Bus Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries

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  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The present invention relates to the battery management systems and vehicle management system of a kind of monitoring of band all the period of time, including battery management system, further include switching switch, switching switch one end connects battery management system, and the switching switch other end turns low-voltage module for switching connection vehicle low-tension supply and high pressure.When normal operation, switching switch connection battery management system and vehicle low-tension supply, when vehicle is shut down, switching switch connection battery management system and high pressure turn low-voltage module.In vehicle normal course of operation, vehicle low-tension supply give battery management system power supply, parking when, switch to high pressure turn low-voltage module give battery management system power supply.The present invention, which realizes, gives battery management system 24 small interior uninterrupted power supply, so as to monitor the information of power battery at any time, convenient for when there is catastrophe failure in battery data can timely processing, security risk is excluded, in order to avoid cause serious economic loss.

Description

Battery management system and vehicle management system with all the period of time monitoring
Technical field
The invention belongs to electric vehicle engineering fields, and in particular to battery management system and vehicle pipe with all the period of time monitoring Reason system.
Background technology
As the demand of new energy market vehicle is continuously increased, more and more clients, Ministry of Industry and Information, vehicle factor etc. are to electronic The security performance of automobile requires also be continuously improved, and safety pays close attention to object at people.Weight as new energy vehicle Want parts, the safety of power battery particularly important.
Under normal circumstances, vehicle low-tension supply is powered to battery management system.However, it is desirable in vehicle running state It can power supply.In the case where vehicle is in shutdown status, if situations such as vehicle encounters sleety weather, there are security hidden troubles, i.e. vehicle Electrokinetic cell system can suffer from destroying, power battery be likely to occur short circuit or failure state.General in the prior art The power that power battery data in the case of vehicle normal operation are monitored, and are not in vehicle under shutdown status Battery data is monitored.
Invention content
The purpose of the present invention is to provide a kind of band all the period of time monitoring battery management system and vehicle management system, to It solves the problem of not being monitored power battery data when vehicle is shut down.
In order to solve the above technical problems, the technical scheme is that:
A kind of battery management system of the monitoring of band all the period of time of the present invention, including battery management system further include that switching is opened It closes, switching switch one end connects battery management system, and the switching switch other end is for switching connection vehicle low tension Source and high pressure turn low-voltage module;When normal operation, switching switch connection battery management system and vehicle low-tension supply are stopped in vehicle When machine, switching switch connection battery management system and high pressure turn low-voltage module.
Further, the switching switch is relay.
A kind of vehicle management system of the present invention, includes battery management system, power battery, the vehicle monitored with all the period of time The battery management system of low-tension supply, the real all the period of time monitoring of the band includes battery management system, battery management system, vehicle prison Connection is communicated between control terminal and power battery, the battery management system of the band real time monitoring further includes switching switch, described Switching switch one end connects battery management system, and the switching switch other end is for switching connection vehicle low-tension supply and high pressure Turn low-voltage module;When normal operation, switching switch connection battery management system and vehicle low-tension supply are cut when vehicle is shut down It changes switch connection battery management system and high pressure turns low-voltage module;One end of the switching switch also passes through the first power switch (K4) vehicle monitor terminal is connected, power battery, battery management system control connection are also connected by the second power switch (K2) First power switch (K4) and the second power switch (K2).
Further, the switching switch is relay.
Further, the vehicle management system further includes the monitoring backstage being connect with vehicle monitoring terminal called, described Monitoring backstage is used to communicate with mobile phone terminal and connect.
Further, vehicle monitoring terminal is connect with monitoring backstage by GPS.
Further, monitoring backstage is connect with mobile phone terminal via mobile network.
Further, lead between power battery and battery management system, between battery management system and vehicle monitor terminal Cross CAN communication.
Further, the vehicle management system further includes entire car controller, and the one end for switching switch is also supplied by third Electric switch (K3) connects entire car controller, battery management system control connection third power switch (K3).
Beneficial effects of the present invention are:
The present invention improves existing battery management power supply system so that high pressure turns low-voltage module and vehicle low-tension supply Competition power supply is realized by switching to switch.In vehicle normal course of operation, vehicle low-tension supply is powered to battery management system, Parking when, switch to high pressure turn low-voltage module give battery management system power supply.So, it is small to realize battery management system 24 Interior uninterrupted power supply, so as to monitor the information of power battery at any time, convenient for the energy when catastrophe failure occurs in battery data Enough timely processings, exclude security risk, in order to avoid cause serious economic loss.
Description of the drawings
Fig. 1 is the vehicle management system figure of the prior art;
Fig. 2 is the vehicle management system figure of the present invention.
Specific implementation mode
To keep the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, to the present invention It is described in further detail, but embodiments of the present invention are not limited thereto.
It is illustrated by taking pure electric automobile as an example below.
The pure electric automobile includes vehicle management system, in the prior art, as shown in Figure 1, power battery, full-vehicle control Device, vehicle monitor terminal and battery management system all access CAN network, and battery management system by vehicle low-tension supply come Power supply, power battery, entire car controller and vehicle monitor terminal are powered by vehicle low-tension supply.Battery management system can be with Power battery is controlled according to whole vehicle state, power battery is by CAN by oneself state information by sending cell tube to from plate The mainboard of reason system.
During vehicle travels, the power battery of the pure electric automobile is by its own battery temperature, voltage, electric current Etc. information by sending the mainboard of battery management system to from plate, vehicle monitor terminal is then sent to by mainboard, is then sent To monitoring backstage, monitoring backstage can real-time monitor the status information of power battery;Driving faults information is by battery management system System passes to entire car controller, and entire car controller controls vehicle safety by internal integrated vehicle control tactics.
But if when vehicle stops, encountering the adverse circumstances such as sleet, it is most likely that the soaked insulation of battery is caused to be lost Effect or battery system can suffer from soaked, short-circuit, high temperature, over-pressed equivalent risk, at this time due to not having vehicle low-tension supply can not It powers to battery management system, causes the fault message that cannot pass to monitoring backstage in time, there are security risks.
As shown in Fig. 2, the present invention is on the basis of existing technology, the electric power supply control system of battery management system is done It improves.When vehicle is out of service, low-voltage module is turned by high pressure and is powered to battery management system, realizes that high pressure turns low pressure molding Block is powered with the competition of vehicle low-tension supply.
In order to realize competition power supply, one switching switch of increase, in the present embodiment, switching switch selects five foot relays. The coil Q1 of five foot relay K1 is powered by Vcc.Contact switch one end of five foot relay K1 connects battery management system, another End turns low-voltage module for switching connection vehicle low-tension supply and high pressure.Moreover, one end of K1 also passes through the first power switch K4 Vehicle monitor terminal is connected, it is also whole by the K3 connections of third power switch also by the second power switch K2 connection power batteries Vehicle controller.Battery management system control connection K2, K3 and K4.
When the vehicle is stopped, K5 is turned off, and coil Q1 power-off, contact K1 switchs to state as shown in Figure 2, i.e. battery management system System power supply is switched to high pressure by vehicle low-tension supply and turns low pressure DC-DC module so that the microcontroller of the management system of battery can It is powered by DC-DC module under vehicle stop state, and the power module of battery management system is in suspend mode.When needs are adopted When the power battery data that collection power battery is stored from plate, battery management system starts work, utilizes the drive module of itself Start work, i.e. the MCU driving power module work of battery management system;Meanwhile battery management system controls K2, K3, K4 Conducting, power battery is sent to respectively from plate, entire car controller, vehicle monitor terminal by the low-voltage power supply of DC-DC module, so that Power battery respectively can will be real-time transmitted to battery management system from the data of plate, and battery management system sends these information to Data are real-time transmitted to monitoring backstage by vehicle monitor terminal, vehicle monitor terminal by GPS.
Due to when vehicle stops, administrative staff or driver be not generally beside vehicle, when monitoring backstage judges electricity When catastrophe failure occur in pond data, fault message is pushed to the mobile phone terminal of client or relevant people by mobile network, is allowed Terminal client knows the fault message of vehicle in real time, so as to timely processing vehicle trouble, excludes security risk, in order to avoid cause serious Economic loss.
So, no matter in the case where vehicle is in driving states or under dead ship condition, there is power supply to cell tube Reason system power supply allows electric vehicle to protect at any time to realize 24 hours continual monitoring functions of vehicle dynamic power system It holds in a safe environment.
In addition, present invention can also apply to other automobiles, such as hybrid-electric car, car etc..
In the present embodiment, realize that vehicle low-tension supply and high pressure turn the competition power supply of low-voltage module using relay, when Vehicle stop when, switch to high pressure turn low-voltage module give battery management system power supply.As other embodiment, can be used general Switching switch, artificially by pulling the rim brake of switching switch, turns low-voltage module by high pressure and gives battery management system that is, in parking System power supply.
Although present disclosure is discussed in detail by above preferred embodiment, but it should be appreciated that above-mentioned Description is not considered as limitation of the present invention.After those skilled in the art have read the above, for the present invention's A variety of modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.

Claims (9)

1. a kind of battery management system of band all the period of time monitoring, including battery management system, which is characterized in that further include that switching is opened It closes, switching switch one end connects battery management system, and the switching switch other end is for switching connection vehicle low tension Source and high pressure turn low-voltage module;When normal operation, switching switch connection battery management system and vehicle low-tension supply are stopped in vehicle When machine, switching switch connection battery management system and high pressure turn low-voltage module.
2. the battery management system of band all the period of time monitoring according to claim 1, which is characterized in that the switching, which switchs, is Relay.
Include the battery management system, power battery, vehicle low-tension supply monitored with all the period of time 3. a kind of vehicle management system, The battery management system of the real all the period of time monitoring of the band includes battery management system, battery management system, vehicle monitoring terminal and Connection is communicated between power battery, which is characterized in that the battery management system of the band real time monitoring further includes switching switch, institute Switching switch one end connection battery management system is stated, the switching switch other end is for switching connection vehicle low-tension supply and height Pressure turns low-voltage module;When normal operation, switching switch connection battery management system and vehicle low-tension supply, when vehicle is shut down, Switching switch connection battery management system and high pressure turn low-voltage module;One end of the switching switch also passes through the first power switch (K4) vehicle monitor terminal is connected, power battery, battery management system control connection are also connected by the second power switch (K2) First power switch (K4) and the second power switch (K2).
4. vehicle management system according to claim 3, which is characterized in that the switching switch is relay.
5. vehicle management system according to claim 3, which is characterized in that the vehicle management system further includes and vehicle The monitoring backstage of monitor terminal communication connection, the monitoring backstage are used to communicate with mobile phone terminal and connect.
6. vehicle management system according to claim 5, which is characterized in that vehicle monitoring terminal passes through with monitoring backstage GPS connections.
7. vehicle management system according to claim 5, which is characterized in that monitoring backstage passes through mobile network with mobile phone terminal Network connects.
8. vehicle management system according to claim 3, which is characterized in that between power battery and battery management system, Pass through CAN communication between battery management system and vehicle monitor terminal.
9. vehicle management system according to claim 3, which is characterized in that the vehicle management system further includes vehicle control Device processed, the one end for switching switch also connect entire car controller, battery management system control connection by third power switch (K3) Third power switch (K3).
CN201710284517.1A 2017-04-25 2017-04-25 Battery management system with full time monitoring and vehicle management system Active CN108725233B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109606118A (en) * 2019-01-11 2019-04-12 厦门金龙联合汽车工业有限公司 A kind of electric automobile power battery safety monitoring system and its low-voltage distribution scheme
CN113147503A (en) * 2021-04-19 2021-07-23 北京汽车股份有限公司 Electric vehicle power supply management method

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Publication number Priority date Publication date Assignee Title
CN109606118A (en) * 2019-01-11 2019-04-12 厦门金龙联合汽车工业有限公司 A kind of electric automobile power battery safety monitoring system and its low-voltage distribution scheme
CN113147503A (en) * 2021-04-19 2021-07-23 北京汽车股份有限公司 Electric vehicle power supply management method
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