CN101572332A - Control system of high-voltage battery and control method thereof - Google Patents
Control system of high-voltage battery and control method thereof Download PDFInfo
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- CN101572332A CN101572332A CNA200910117023XA CN200910117023A CN101572332A CN 101572332 A CN101572332 A CN 101572332A CN A200910117023X A CNA200910117023X A CN A200910117023XA CN 200910117023 A CN200910117023 A CN 200910117023A CN 101572332 A CN101572332 A CN 101572332A
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000004891 communication Methods 0.000 claims description 32
- 238000001514 detection method Methods 0.000 claims description 21
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 230000004044 response Effects 0.000 claims description 7
- 230000001427 coherent effect Effects 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 5
- 238000007726 management method Methods 0.000 description 26
- 238000011161 development Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- 230000006399 behavior Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 239000005955 Ferric phosphate Substances 0.000 description 2
- 229910018095 Ni-MH Inorganic materials 0.000 description 2
- 229910018477 Ni—MH Inorganic materials 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 229940032958 ferric phosphate Drugs 0.000 description 2
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 description 2
- 229910000399 iron(III) phosphate Inorganic materials 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- HEZMWWAKWCSUCB-PHDIDXHHSA-N (3R,4R)-3,4-dihydroxycyclohexa-1,5-diene-1-carboxylic acid Chemical compound O[C@@H]1C=CC(C(O)=O)=C[C@H]1O HEZMWWAKWCSUCB-PHDIDXHHSA-N 0.000 description 1
- 208000034423 Delivery Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/04—Cutting off the power supply under fault conditions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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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
-
- 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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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- Engineering & Computer Science (AREA)
- Sustainable Development (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Power Engineering (AREA)
- Sustainable Energy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention relates to a control system of a high-voltage battery and a control method thereof. The high-voltage battery of a car load controller is connected to a judge module, so as to judge whether the battery is switched on or switched off, and transmit a judged result to a battery management system in a way of CAN information; the battery management system responds to the request of the car load controller to control a battery supply relay to be switched on or switched off; and from the view point of the system, the car load controller comprehensively considers signals such as the state of the battery, the state of a motor, the request for starting or closing the system, the state of failure information, and the like, to judge whether the battery is switched on or switched off, transmit the judged result to the battery management system to be executed, and transmit the real state of switching on or switching off of the battery to the other control modules of the car load controller. By judging the information, the system reasonably controls the normal starting and closing of the battery, correctly switches on and switches off the battery when having an error for demanding the battery to be switched off, can prevent the circuit of a hard ware from being broken, protects the battery body, and ensures the security of the car load and persons.
Description
Technical field
The present invention relates to the control field of electric motor car,, be specifically related to a kind of control system and control method thereof of high-tension battery.
Background technology
Social development is to present stage, and energy and environment become the problem that the current whole world is paid close attention to the most, and the energy is economic basis, and environment is the key factor of restriction economic development.The contradiction that how to solve between economic development and energy resource supply, the environmental pollution is the problem that countries in the world press for solution.Electric motor car is with electricity generation oil, can realize that " zero discharge ", noise are low, is the important means that solves the energy and environmental problem.Along with the development of battery technology, the bottleneck of puzzlement electric motor car development is expected to make a breakthrough.Because energy shortage and environmental protection requirement, the international cooperation of electric automobile project is carried out.
According to the requirement of Chinese Automobile Industry ' development plan, the developing goal of Chinese ev industry is: by 2010, the electric automobile recoverable amount accounted for the 5%-10% of automobile pollution, and year production and sales electric automobile is more than 1,500,000; To the year two thousand thirty, the electric automobile recoverable amount accounts for automobile pollution more than 50%, ten thousand of year production and sales electric automobile 1000-1950.
Electric vehicle battery is as the unique power source of car load, and the electric energy in the battery is used for travelling to car load to be provided outside the power, also provides the electric energy of part to keep the need for electricity of car load low-voltage load and charge to the 12V baby battery.The battery that on hybrid vehicle, electric motor car and other energy-conserving and environment-protective vehicle, carries at present lead-acid battery commonly used, Ni-MH battery, ferric phosphate lithium cell etc.The cell voltage grade of carrying on the car load has exceeded the safe voltage rate range that human body can bear, and we often are referred to as high-tension battery.Because of on car load, having equipped high-tension battery, so the significant problem that high-voltage safety must will be considered when design of high-tension battery management system and car load design.Consider from the angle of car load safety, be necessary, and need the reasonably connection and the disconnection of control high-pressure system at high-pressure system design protection system; Multiple battery such as lead-acid battery, Ni-MH battery, ferric phosphate lithium cell will be equipped in the electric motor car, for car load travel and the low-voltage load electricity consumption energy is provided.At present, be equipped on battery connection and the disconnections of adopting by hardware circuit realization control battery in the electric motor car more, realize the connection and the disconnection of battery simply by hardware, can not judge the state that battery should connect or disconnect from the angle of whole system.
In sum, have following technical problem in the prior art: the safety problem of (1) high-tension battery system that needs protection rationally controls the connection and the disconnection of high-pressure system; (2) existing mode by hardware circuit control battery connection and disconnection can not accurately accurately be judged from the angle of whole system.
Summary of the invention
In view of this, the invention provides a kind of high-tension battery and connect and the control method and the system that disconnect,, guarantee the operate as normal of system to realize rationally controlling the connection and the disconnection of high-tension battery, and the fail safe of the system of assurance.
Therefore, the object of the present invention is to provide a kind of control system and control method thereof of high-tension battery, connection to high-tension battery adds the logic control link, when system normally starts, when system requirements is closed, when system occurs requiring to disconnect the fault of battery,, reasonably control battery connection and disconnection according to battery relevant information, motor relevant information and system mode.
It designs control logic in entire car controller, state according to motor, high-tension battery and related accessories is reasonably controlled the relay of battery, the system that can guarantee so just often reasonably uses high-tension battery, and can disconnect high-tension battery assurance car load and safety of persons under emergency situation
Realize the object of the invention technical scheme:
High-tension battery connection judgment module in the entire car controller judges that battery connects or disconnection, and the mode of the result that will judge by CAN information send to battery management system, the request control battery relay of battery management system response entire car controller closed or disconnect.
High-tension battery connection judgment module in the entire car controller is designated hereinafter simply as the connection judgment module.
The connection judgment module is managed the state of battery by six kinds of patterns.These six kinds of patterns comprise originate mode, just at connection mode, connection mode, just at Disconnected mode, Disconnected mode, fault mode.Should connect or disconnect at six kinds of patterns battery that judges, and the actual connection status of record battery and current pattern send to other control module in the entire car controller.
Under originate mode, the connection judgment module requires battery to disconnect, and thinks that battery status is an off-state, and the record present mode is an originate mode.
Just under connection mode, the connection judgment module requires battery to connect, and thinks that battery status is an off-state, and the record present mode is for just at connection mode.
Under connection mode, the connection judgment module requires battery to connect, and thinks that battery status is a connection status, and the record present mode is a connection mode.
Just under Disconnected mode, the connection judgment module requires battery to disconnect, and thinks that battery status is a connection status, and the record present mode is for just at Disconnected mode.
Under Disconnected mode, the connection judgment module requires battery to disconnect, and thinks that battery status is an off-state, and the record present mode is a Disconnected mode.
Under fault mode, the connection judgment module requires battery to connect, and thinks that battery status is a connection status, and the record present mode is a fault mode.
The connection judgment module is judged above-mentioned six kinds of patterns according to the communication situation of entire car controller and electric machine controller and battery management system, the state of battery, the state of battery relay, the voltage of battery-end and voltage condition, fault message, the system-down request of motor side, thereby is controlled reasonably conversion between various patterns.
The battery correlation behavior signal that the connection judgment module needs sends to entire car controller by the mode of battery management system by CAN information.The motor coherent signal that the connection judgment module needs sends to entire car controller by the mode of motor control unit by CAN information.Fault message sends to the connection judgment module after being diagnosed by the fault processing module in the entire car controller.
Concrete technical scheme is as follows:
A kind of control system of high-tension battery comprises entire car controller, battery management system, battery relay, wherein said entire car controller is used to judge that battery connects or disconnection, and it is connected with the battery management system communication, and described battery management system is used to control the closed of battery relay or disconnect.
Described entire car controller has a high-tension battery connection judgment module, and this connection judgment module is used for judge module and judges that battery connects or disconnection.
The high-tension battery connection judgment module of described entire car controller or entire car controller is connected with battery management system by the CAN communication.
Battery management system is used for transmitting the high-tension battery connection judgment module of battery correlation behavior signal to entire car controller or entire car controller by the CAN communication.
Also comprise motor control unit, its with the high-tension battery connection judgment module of entire car controller or entire car controller between adopt the CAN communication to be connected, be used to transmit the coherent signal of motor.
Described entire car controller has a fault processing module, the high-tension battery connection judgment module that it is used for tracing trouble information and is sent to entire car controller.
A kind of control method of control system of above-mentioned high-tension battery, adopt following steps:
(1) entire car controller judges that battery connects or disconnection;
(2) result that will judge sends to battery management system;
(3) the closed or disconnection of the request control battery relay of battery management system response entire car controller.
Described entire car controller judges that by high-tension battery connection judgment module wherein battery connects or disconnection, and the result that will judge by the CAN communication sends to battery management system.
The battery correlation behavior signal that the connection judgment module needs sends to entire car controller by the mode of battery management system by the CAN communication; The motor coherent signal that the connection judgment module needs sends to entire car controller by the mode of motor control unit by the CAN communication; Fault message sends to the connection judgment module after being diagnosed by the fault processing module in the entire car controller.
Described connection judgment module by originate mode, just at connection mode, connection mode, just at Disconnected mode, Disconnected mode, fault mode totally six kinds of schema management batteries, promptly should connect or disconnect, and the actual connection status of record battery and current pattern send to other control module in the entire car controller at six kinds of patterns battery that judges.
Under originate mode, the connection judgment module requires battery to disconnect, and thinks that battery status is an off-state, and the record present mode is an originate mode; And/or just under connection mode, the connection judgment module requires battery to connect, and thinks that battery status is an off-state, and the record present mode is for just at connection mode; And/or under connection mode, the connection judgment module requires battery to connect, and thinks that battery status is a connection status, and the record present mode is a connection mode; And/or just under Disconnected mode, the connection judgment module requires battery to disconnect, and thinks that battery status is a connection status, and the record present mode is for just at Disconnected mode; And/or under Disconnected mode, the connection judgment module requires battery to disconnect, and thinks that battery status is an off-state, and the record present mode is a Disconnected mode; And/or under fault mode, the connection judgment module requires battery to connect, and thinks that battery status is a connection status, and the record present mode is a fault mode.
The connection judgment module is according to the communication situation of entire car controller and electric machine controller and battery management system; and/or the state of battery; and/or the state of battery relay; and/or the voltage condition of the voltage of battery-end and motor side; and/or fault message; and/or the system-down request judges above-mentioned six kinds of patterns, thereby controls reasonably conversion between various patterns.
Following algorithm is adopted in conversion between six kinds of patterns:
Under originate mode, whether connection judgment module detection system has the request of shutdown, if the request of shutdown is arranged, the connection judgment module enters just at Disconnected mode; Or
Under originate mode, and do not have the system-down request, whether connection judgment module detection system has fault need disconnect battery, if fault, the connection judgment module enters fault mode; Or
Under originate mode, do not have the system-down request and do not have fault message, whether the CAN communication that the connection judgment module detects entire car controller and battery management system normal, the CAN communication of entire car controller and motor control unit whether normally, whether battery ready, all normal and battery is ready when the CAN communication, the connection judgment module enters just at connection mode, if arbitrary satisfied in the condition, stay at originate mode;
And/or
Just under connection mode, whether connection judgment module detection system has the request of shutdown, if the request of shutdown is arranged, the connection judgment module enters just at Disconnected mode; Or
Just under connection mode, and do not have the system-down request, whether connection judgment module detection system has fault need disconnect battery, if fault, the connection judgment module enters fault mode; Or
Just under connection mode, whether the relay that the connection judgment module detects battery is closed, whether the voltage of battery management system end and the voltage of motor control unit end have reached the setting limit value, if connecting the voltage at normal and battery management system and motor control unit two ends, relay all reaches the setting limit value, the connection judgment module enters connection mode, if condition does not satisfy, stay on just at connection mode;
And/or
Under connection mode, whether connection judgment module detection system has the request of shutdown, if the request of shutdown is arranged, the connection judgment module enters just at Disconnected mode; Or
Under connection mode, and do not have the system-down request, whether connection judgment module detection system has fault need disconnect battery, if fault, the connection judgment module enters fault mode; Or
Under connection mode, whether the relay that the connection judgment module detects battery disconnects, whether the voltage of battery management system end and the voltage of motor control unit end are lower than the setting limit value, be lower than the setting limit value if relay disconnects or the voltage at two ends is arbitrary, the connection judgment module enters just at connection mode, if condition does not satisfy, stay at connection mode;
And/or
If system breaks down during at originate mode, just at connection mode, connection mode, the connection judgment module enters fault mode, requires battery to connect, and thinks that battery status is a connection status, and the record present mode is a connection mode:
And/or
Under fault mode, whether connection judgment module detection system has the request of shutdown or motor control unit whether to be in the disable state, if have the request of shutdown or motor control unit to be in the disable state, the connection judgment module enters just at Disconnected mode; Or
Under fault mode, if there is not the system-down request, motor control unit is in enabled state, postpones after a period of time, the connection judgment module just enters at Disconnected mode, and the time of this delay is taken all factors into consideration setting according to system's cycle of operation and Hardware Response Delay speed; Or
Just under Disconnected mode, whether the communication that the connection judgment module detects entire car controller and battery management system stops, whether battery relay disconnects, if communication stops or relay disconnects, the connection judgment module enters Disconnected mode;
And/or
Enter Disconnected mode by disconnecting connection mode, require battery to disconnect, and think that battery is in off-state, the record present mode is a Disconnected mode, and feeds back to the signal that entire car controller scheduler module battery has been closed.
The control battery connects and the order that enables motor is: when starting working, connect battery earlier and enable motor then; When quitting work, stop motor earlier and disconnect battery then; When fault, the Electric Machine Control correlation module requires motor control unit not enable motor, then fault mode progressively disconnects battery down after motor does not enable, and not controlled when motor under failure condition, connection judgment module mandatory requirement battery after a time disconnects.
Compare with present prior art, the present invention takes into account system mode, battery and battery relay state, system mistake state, the connection judgment module utilizes in the electric vehicle system electric machine controller to judge being connected of high-tension battery or disconnection with the information that battery management system sends to entire car controller, and the virtual condition signal of battery is sent to other control module of entire car controller.Make system safety connect battery reliably, use battery, and disconnect being connected of high-pressure system and car load where necessary, when protecting battery and guarantee the fail safe of system; Entire car controller is taken all factors into consideration signals such as the requirement, fault message state of the state, system start-up of state, the motor of battery and shutdown and is carried out the judgement that battery is connected or disconnects from the angle of system; the result who judges is sent to battery management system carry out, and other control module that the connection or the off-state of battery reality sent to entire car controller.Judgement that can be by above-mentioned information is reasonably controlled battery and is correctly connected when normally starting, close, occurring requiring disconnecting the fault of battery and disconnects, can avoid hardware circuit to be damaged, and protects battery body, and assurance car load and safety of persons.
Description of drawings
Fig. 1 is the electric vehicle system structured flowchart;
Fig. 2 is battery connection judgment template pattern state and conversion schematic diagram;
Fig. 3 is the pattern control flow chart under the originate mode among Fig. 2.
Fig. 4 is the pattern control flow chart under connection mode just among Fig. 2.
Fig. 5 is the pattern control flow chart under the connection mode among Fig. 2.
Fig. 6 is the pattern control flow chart under the fault mode among Fig. 2.
Fig. 7 is the pattern control flow chart under Disconnected mode just among Fig. 2.
Among the figure: a.CAN, b. high-voltage signal, c. control signal, d. low-voltage signal, e. mechanical connection
a1.CAN?H，a2.CAN?L
1.MCU, 2.VMS/VCU, 3.BMS, 4. wheel, 5. power train, 6. motor, 7. inverter, 8. relay, 9. high-tension battery, 10.DCDC, 11. A-batteries, 12. loads
A. originate mode, B. be just at connection mode, and C. connection mode, D. be just at Disconnected mode, E. Disconnected mode, F. fault mode
Embodiment
For can being known, those skilled in the art understand technical scheme of the present invention, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
As shown in Figure 1, be the electric vehicle system structure, battery management system (Battery ManagementSystem, BMS) the battery relevant parameter is fed back to entire car controller (Vehicle Control Unit, VCU), motor control unit (Motor Control Unit, MCU) the motor relevant parameter is fed back to VCU, VCU is according to BMS that receives and information and the system request of MCU, send torque request to MCU, the output torque of motor is transported to drive system, is ultimately delivered to the wheel drive vehicle '.System works reliably for assurance; and consider the fail safe of high-pressure system; the present invention controls the connection or the disconnection of battery according to different situations; the realization system starts working and normally is connected when closing and disconnects battery; and be out of order or high-tension battery disconnects battery when breaking down in system; play the effect of protection battery and hardware, and guaranteed car load and safety of persons.
How It Works is preferably as follows:
1. the high-tension battery connection judgment module in the entire car controller judges that battery connects or disconnection, and the mode of the result that will judge by CAN information send to battery management system, and the request of battery management system response entire car controller is controlled the closed of battery relay or disconnected.
2. car load connection judgment module is managed the state of battery by six kinds of patterns.These six kinds of patterns comprise originate mode, just at connection mode, connection mode, just at Disconnected mode, Disconnected mode, fault mode.
3. the connection judgment module judges that battery should connect or disconnect under six kinds of patterns, and writes down the actual connection status of battery and current pattern and send to other control module in the entire car controller.
4. under each pattern, the rational intermodule jump condition of connection judgment module settings, the state information of each pattern of accurate recording.After disconnecting, battery feeds back to the signal that entire car controller scheduler module battery is closed.
As shown in Figure 2, be battery connection judgment template pattern state and conversion schematic diagram:
1, after system powered on and finishes initialization, the connection judgment module entered originate mode, required battery to disconnect, and thought that battery status is an off-state, and the record present mode is an originate mode.
Under originate mode, whether connection judgment module detection system has the request of shutdown, if the request of shutdown is arranged, the connection judgment module will enter just at Disconnected mode.
Under originate mode, and do not have the system-down request, whether connection judgment module detection system has fault need disconnect battery, if fault, the connection judgment module will enter fault mode.
Under originate mode, do not have the system-down request and do not have fault message.Whether the CAN communication that the connection judgment module detects VCU and BMS normal, the CAN communication of VCU and MCU whether normally, whether battery ready.If the CAN communication is all normal and battery is ready, the connection judgment module just enters at connection mode, if arbitraryly in the condition do not satisfy, will stay at originate mode.
2. the connection judgment module just enters at connection mode, requires battery to connect, and thinks that battery status is an off-state, and the record present mode is for just at connection mode.
Just under connection mode, whether connection judgment module detection system has the request of shutdown, if the request of shutdown is arranged, the connection judgment module will enter just at Disconnected mode.
Just under connection mode, and do not have the system-down request, whether connection judgment module detection system has fault need disconnect battery, if fault, the connection judgment module will enter fault mode.
Just under connection mode, the connection judgment module detects the voltage that whether relay is closed, BMS holds of battery and whether the voltage of MCU end has reached the setting limit value, all reach the setting limit value if relay connects the voltage at normal and BMS and MCU two ends, the connection judgment module enters connection mode.If condition does not satisfy, will stay on just at connection mode.
3, the connection judgment module just enters at connection mode, requires battery to connect, and thinks that battery status is a connection status, and the record present mode is a connection mode.
Under connection mode, whether connection judgment module detection system has the request of shutdown, if the request of shutdown is arranged, the connection judgment module will enter just at Disconnected mode.
Under connection mode, and do not have the system-down request, whether connection judgment module detection system has fault need disconnect battery, if fault, the connection judgment module will enter fault mode.
Under connection mode, whether the voltage of voltage that whether relay that the connection judgment module detects battery disconnects, BMS holds and MCU end is lower than the setting limit value, be lower than the setting limit value if relay disconnects or the voltage at two ends is arbitrary, the connection judgment module enters just at connection mode.If condition does not satisfy, will stay at connection mode.
4. if at originate mode, system breaks down during just at connection mode, connection mode, the connection judgment module enters fault mode, requires battery to connect, and thinks that battery status is a connection status, the record present mode is a connection mode.
Under fault mode, whether connection judgment module detection system has the request of shutdown or MCU whether to be in the disable state, if having the request of shutdown or MCU to be in the disable state, the connection judgment module will enter just at Disconnected mode.
Under fault mode, if there is not the system-down request, MCU is in enabled state, postpones after a period of time, and the connection judgment module enters just at Disconnected mode.The time of this delay is taken all factors into consideration setting according to system's cycle of operation and Hardware Response Delay speed.
Under fault mode, do not require battery to disconnect, be to consider in Full Vehicle System, for energy normal delivery and protection hardware circuit, the control battery connect and enable motor order should for: when starting working, connect battery earlier and enable motor then; When quitting work, should stop motor earlier and disconnect battery then.When fault, the Electric Machine Control correlation module can require MCU not enable motor, so fault mode progressively disconnects battery down after motor does not enable, but if motor is not controlled under failure condition, connection judgment module mandatory requirement battery after a time disconnects.
5, entered by above-mentioned four patterns and disconnect connection mode, require battery to disconnect, and think that battery still is in connection status, the record present mode is for just at Disconnected mode.
Just under Disconnected mode, whether the communication that the connection judgment module detects VCU and BMS stops, whether battery relay disconnects, if communication stops or relay disconnects, the connection judgment module enters Disconnected mode.
6, enter Disconnected mode by disconnecting connection mode, require battery to disconnect, and think that battery is in off-state, the record present mode is a Disconnected mode, and feeds back to the signal that entire car controller scheduler module battery has been closed.
In conjunction with the method that embodiment disclosed herein describes, software module can place the storage medium of any other form known in random asccess memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or the technical field.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (14)
1, a kind of control system of high-tension battery, it is characterized in that, comprise entire car controller, battery management system, battery relay, wherein said entire car controller is used to judge that battery connects or disconnection, and it is connected with the battery management system communication, and described battery management system is used to control the closed of battery relay or disconnect.
2, the control system of high-tension battery as claimed in claim 1 is characterized in that, described entire car controller has a high-tension battery connection judgment module, and this connection judgment module is used for judge module and judges that battery connects or disconnection.
3, the control system of high-tension battery as claimed in claim 1 or 2 is characterized in that, the high-tension battery connection judgment module of described entire car controller or entire car controller is connected with battery management system by the CAN communication.
4, the control system of high-tension battery as claimed in claim 3 is characterized in that, battery management system is used for transmitting the high-tension battery connection judgment module of battery correlation behavior signal to entire car controller or entire car controller by the CAN communication.
5, the control system of high-tension battery as claimed in claim 1 or 2, it is characterized in that, also comprise motor control unit, its with the high-tension battery connection judgment module of entire car controller or entire car controller between adopt the CAN communication to be connected, be used to transmit the coherent signal of motor.
6, the control system of high-tension battery as claimed in claim 1 or 2 is characterized in that, described entire car controller has a fault processing module, the high-tension battery connection judgment module that it is used for tracing trouble information and is sent to entire car controller.
7, a kind of control method of control system of the high-tension battery as claim 1-6 is characterized in that, adopts following steps:
(1) entire car controller judges that battery connects or disconnection;
(2) result that will judge sends to battery management system;
(3) the closed or disconnection of the request control battery relay of battery management system response entire car controller.
8, the control method of the control system of high-tension battery as claimed in claim 7, it is characterized in that, described entire car controller judges that by high-tension battery connection judgment module wherein battery connects or disconnection, and the result that will judge by the CAN communication sends to battery management system.
9, the control method of the control system of high-tension battery as claimed in claim 8 is characterized in that, the battery correlation behavior signal that the connection judgment module needs sends to entire car controller by the mode of battery management system by the CAN communication; The motor coherent signal that the connection judgment module needs sends to entire car controller by the mode of motor control unit by the CAN communication; Fault message sends to the connection judgment module after being diagnosed by the fault processing module in the entire car controller.
10, the control method of the control system of high-tension battery as claimed in claim 8 or 9, it is characterized in that, described connection judgment module by originate mode, just at connection mode, connection mode, just at Disconnected mode, Disconnected mode, fault mode totally six kinds of schema management batteries, promptly should connect or disconnect, and the actual connection status of record battery and current pattern send to other control module in the entire car controller at six kinds of patterns battery that judges.
11, the control method of the control system of high-tension battery as claimed in claim 10 is characterized in that, under originate mode, the connection judgment module requires battery to disconnect, and thinks that battery status is an off-state, and the record present mode is an originate mode; And/or just under connection mode, the connection judgment module requires battery to connect, and thinks that battery status is an off-state, and the record present mode is for just at connection mode; And/or under connection mode, the connection judgment module requires battery to connect, and thinks that battery status is a connection status, and the record present mode is a connection mode; And/or just under Disconnected mode, the connection judgment module requires battery to disconnect, and thinks that battery status is a connection status, and the record present mode is for just at Disconnected mode; And/or under Disconnected mode, the connection judgment module requires battery to disconnect, and thinks that battery status is an off-state, and the record present mode is a Disconnected mode; And/or under fault mode, the connection judgment module requires battery to connect, and thinks that battery status is a connection status, and the record present mode is a fault mode.
12, as the control method of the control system of claim 10 or 11 described high-tension batteries; it is characterized in that; the connection judgment module is according to the communication situation of entire car controller and electric machine controller and battery management system; and/or the state of battery; and/or the state of battery relay, and/or the voltage condition of the voltage of battery-end and motor side, and/or fault message; and/or the system-down request judges above-mentioned six kinds of patterns, thereby controls reasonably conversion between various patterns.
As the control method of the control system of claim 10 or 11 described high-tension batteries, it is characterized in that 13, following algorithm is adopted in the conversion between six kinds of patterns:
Under originate mode, whether connection judgment module detection system has the request of shutdown, if the request of shutdown is arranged, the connection judgment module enters just at Disconnected mode; Or
Under originate mode, and do not have the system-down request, whether connection judgment module detection system has fault need disconnect battery, if fault, the connection judgment module enters fault mode; Or
Under originate mode, do not have the system-down request and do not have fault message, whether the CAN communication that the connection judgment module detects entire car controller and battery management system normal, the CAN communication of entire car controller and motor control unit whether normally, whether battery ready, all normal and battery is ready when the CAN communication, the connection judgment module enters just at connection mode, if arbitrary satisfied in the condition, stay at originate mode;
And/or
Just under connection mode, whether connection judgment module detection system has the request of shutdown, if the request of shutdown is arranged, the connection judgment module enters just at Disconnected mode; Or
Just under connection mode, and do not have the system-down request, whether connection judgment module detection system has fault need disconnect battery, if fault, the connection judgment module enters fault mode; Or
Just under connection mode, whether the relay that the connection judgment module detects battery is closed, whether the voltage of battery management system end and the voltage of motor control unit end have reached the setting limit value, if connecting the voltage at normal and battery management system and motor control unit two ends, relay all reaches the setting limit value, the connection judgment module enters connection mode, if condition does not satisfy, stay on just at connection mode;
And/or
Under connection mode, whether connection judgment module detection system has the request of shutdown, if the request of shutdown is arranged, the connection judgment module enters just at Disconnected mode; Or
Under connection mode, and do not have the system-down request, whether connection judgment module detection system has fault need disconnect battery, if fault, the connection judgment module enters fault mode; Or
Under connection mode, whether the relay that the connection judgment module detects battery disconnects, whether the voltage of battery management system end and the voltage of motor control unit end are lower than the setting limit value, be lower than the setting limit value if relay disconnects or the voltage at two ends is arbitrary, the connection judgment module enters just at connection mode, if condition does not satisfy, stay at connection mode;
And/or
If system breaks down during at originate mode, just at connection mode, connection mode, the connection judgment module enters fault mode, requires battery to connect, and thinks that battery status is a connection status, and the record present mode is a connection mode:
And/or
Under fault mode, whether connection judgment module detection system has the request of shutdown or motor control unit whether to be in the disable state, if have the request of shutdown or motor control unit to be in the disable state, the connection judgment module enters just at Disconnected mode; Or
Under fault mode, if there is not the system-down request, motor control unit is in enabled state, postpones after a period of time, the connection judgment module just enters at Disconnected mode, and the time of this delay is taken all factors into consideration setting according to system's cycle of operation and Hardware Response Delay speed; Or
Just under Disconnected mode, whether the communication that the connection judgment module detects entire car controller and battery management system stops, whether battery relay disconnects, if communication stops or relay disconnects, the connection judgment module enters Disconnected mode;
And/or
Enter Disconnected mode by disconnecting connection mode, require battery to disconnect, and think that battery is in off-state, the record present mode is a Disconnected mode, and feeds back to the signal that entire car controller scheduler module battery has been closed.
As the control method of the control system of claim 10 or 11 described high-tension batteries, it is characterized in that 14, the control battery connects and the order that enables motor is: when starting working, connect battery earlier and enable motor then; When quitting work, stop motor earlier and disconnect battery then; When fault, the Electric Machine Control correlation module requires motor control unit not enable motor, then fault mode progressively disconnects battery down after motor does not enable, and not controlled when motor under failure condition, connection judgment module mandatory requirement battery after a time disconnects.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910117023XA CN101572332B (en) | 2009-06-08 | 2009-06-08 | Control system of high-voltage battery and control method thereof |
| PCT/CN2010/073654 WO2010142230A1 (en) | 2009-06-08 | 2010-06-08 | Control system and control method of high voltage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910117023XA CN101572332B (en) | 2009-06-08 | 2009-06-08 | Control system of high-voltage battery and control method thereof |
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| CN101572332A true CN101572332A (en) | 2009-11-04 |
| CN101572332B CN101572332B (en) | 2012-03-28 |
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| CN200910117023XA Active CN101572332B (en) | 2009-06-08 | 2009-06-08 | Control system of high-voltage battery and control method thereof |
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| WO (1) | WO2010142230A1 (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2010142230A1 (en) | 2010-12-16 |
| CN101572332B (en) | 2012-03-28 |
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