CN108382214A - A kind of Mild hybrid vehicle drive system used for vehicle and control method - Google Patents
A kind of Mild hybrid vehicle drive system used for vehicle and control method Download PDFInfo
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- CN108382214A CN108382214A CN201810085775.1A CN201810085775A CN108382214A CN 108382214 A CN108382214 A CN 108382214A CN 201810085775 A CN201810085775 A CN 201810085775A CN 108382214 A CN108382214 A CN 108382214A
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- 238000000034 method Methods 0.000 title claims abstract description 11
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 184
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 184
- 230000005611 electricity Effects 0.000 claims abstract description 32
- 230000001133 acceleration Effects 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 26
- 239000010959 steel Substances 0.000 claims description 26
- 238000001514 detection method Methods 0.000 claims description 22
- 229910052751 metal Inorganic materials 0.000 claims description 16
- 239000002184 metal Substances 0.000 claims description 16
- 238000012544 monitoring process Methods 0.000 claims description 12
- 230000002457 bidirectional effect Effects 0.000 claims description 9
- 238000010248 power generation Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 6
- 230000002265 prevention Effects 0.000 claims description 6
- 230000033228 biological regulation Effects 0.000 claims description 5
- 239000000446 fuel Substances 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 3
- 230000006698 induction Effects 0.000 claims description 3
- 230000002045 lasting effect Effects 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims 2
- 238000005259 measurement Methods 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 abstract description 4
- 230000001737 promoting effect Effects 0.000 abstract description 2
- 239000003990 capacitor Substances 0.000 description 9
- 238000013461 design Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 206010037660 Pyrexia Diseases 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000013178 mathematical model Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000010396 two-hybrid screening Methods 0.000 description 1
Classifications
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- 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
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
- B60L50/15—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with additional electric power supply
-
- 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
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/40—Electric propulsion with power supplied within the vehicle using propulsion power supplied by capacitors
-
- 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
-
- 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
- B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
- B60L58/22—Balancing the charge of battery modules
-
- 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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/547—Voltage
-
- 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 invention discloses a kind of Mild hybrid vehicle drive system used for vehicle and control method, which is made of generator, free modularization lithium battery pack, electronic control unit, line load, integrated controller；The control method of the system is when the total voltage of battery pack is higher than charging voltage is opened, and generator does not work, and only battery pack is that line load carries electricity；On the contrary then control circuit starts the switching on/off circuit in integrated controller and directly initiates generator, and generator and battery pack are powered for line load simultaneously；If in heavy duty or acceleration mode, battery pack increases the electric power compensation to line load；If being in underloading or at the uniform velocity state, while generator and battery pack are line load power supply jointly, generator is that battery pack carries out benefit electricity using its power margin.The present invention has the advantages of simple in structure, performance is stablized, Energy Saving.The hardware cost of the present invention is less than traditional combustion engine, but the service life is approximately equal to internal combustion engine, has great promotional value.
Description
Technical field
The invention belongs to field of hybrid power, and in particular to a kind of Mild hybrid vehicle drive system used for vehicle
And control method.
Background technology
Current global hybrid power system is mainly used in electric vehicle.Wherein more famous hybrid power system
System includes being mixed as the plug-in of representative as the oily electric-type hybrid power HEv systems of representative, and to irrigate Lactel using general sharp this of Toyota
Close power Phev systems.
HEv systems use double dynamical design, the system to be equipped with the larger oil gas actuating unit and a body of a set of volume
The smaller battery powered mechanism of product, its working principle is that, when vehicle is in lower-speed state, the system is by battery into action edge
Output, when vehicle is in fast state, which carries out power output by oil gas, to realize fuel-efficient purpose.
Phev systems are designed using single-power, which is equipped with the larger battery pack of a set of volume and a set of for pure
For battery pack power generation generator, its working principle is that, the power of vehicle is all from battery pack, therefore the body of the battery pack
Product must be made big, and due to the power demand of battery pack to be met, and the power of the generator is also quite big.
Above two hybrid power system, although all have the advantages that it is fuel-efficient, also exist simultaneously system overall volume compared with
Greatly, cost is higher, the unstable defect of performance.Therefore, in middle-size and small-size mixed on low speed powered vehicle, at present there is an urgent need to
It is a kind of not only succinct cheap, but also reliable and stable hybrid power system.
Invention content
In order to solve the problems in the existing technology, it is dynamic specially to provide a kind of moderate mixing used for vehicle by the present invention
Power-driven system and control method.
To reach above-mentioned technical purpose and effect, the invention is realized by the following technical scheme：
A kind of Mild hybrid vehicle drive system used for vehicle, by generator, free modularization lithium battery pack, electronic control unit,
Line load, integrated controller are constituted；The generator and the free modularization lithium battery pack pass through DC transmission line respectively
It is directly connect with the electronic control unit, the electronic control unit is connect with the line load, the generator and the free module
Block lithium battery pack can be powered by the electronic control unit for the line load；The generator can be straight by DC transmission line
It is connected in the free modularization lithium battery pack power supply；The integrated controller includes that control circuit, switching on/off circuit and voltage are adopted
Collector；The voltage collection circuit is connect with the free modularization lithium battery pack, for monitoring the free modularization lithium
The real-time voltage of battery pack；One end of the switching on/off circuit is connect with the free modularization lithium battery pack, the switching on/off circuit
The other end connect with the generator, for controlling the generator start and stop；One end of the control circuit and the voltage
Acquisition Circuit connects, the voltage monitoring information for receiving the voltage collection circuit feedback, the other end of the control circuit
It is connect with the switching on/off circuit, for sending start and stop instruction to the switching on/off circuit.
Further, the free modularization lithium battery pack can be connect with interface is filled outside, carry out outer charging.
Further, the generator is fuel generator or photovoltaic generator.
Further, the line load is AC induction motor, permanent magnet synchronous motor or permanent magnetic brushless.
Further, the generator carries out determining power work, and output voltage is equal to the free Modularized lithium battery
The full piezoelectric voltage of packet.
Further, the output power of the generator is slightly larger than the rated power of the line load, and the power generation
The output power of machine is less than the maximum power of the line load.
Further, the free modularization lithium battery pack is formed by several with the free connection in series-parallel of lithium battery module.
Further, the lithium battery module includes that lithium battery group, battery energy management device and de- bridge-type bistable magnetic are protected
Hold relay；The lithium battery group is connected in series by several battery cores；There are one the inside of the battery energy management device includes
Master control chip and several balancers corresponding with the battery core quantity in the lithium battery group, the balancer
Be connected across the positive and negative end of the corresponding battery core respectively, each balancer by detection chip, equalizer switch and
Equalizing resistance is connected in series, and the Master control chip is connect with each detection chip respectively；The de- bridge-type bistable magnetic
The switch sections of guard relay are connected with the lithium battery group, the electromagnet portion of the de- bridge-type bistable magnetic latching relay
It is connect with the Master control chip.
Further, the de- bridge-type bistable magnetic latching relay includes a case, and the is provided in the case
One armature, the second armature, double-coil electromagnet, I-shaped magnet steel, the first magnet, the second magnet and bidirectional final switch；
The lower end of first armature is exposed to outside the case, and the upper end of first armature is provided with stationary contact；Described
The lower end of two armature is exposed to outside the case, and the upper end of second armature is provided with one piece of armature shrapnel；The armature bullet
Movable contact is provided in the middle part of piece, the movable contact is corresponding with the stationary contact, and the lower end of the armature shrapnel is provided with one
Root connecting rod normal thereto；The middle part of the connecting rod is hinged there are one magnet steel fixed seat, and the I-shaped magnet steel is arranged described
In magnet steel fixed seat, first magnet and second magnet are located at the left and right sides below the I-shaped magnet steel；
The double-coil electromagnet is located at the top of the I-shaped magnet steel, and the double-coil electromagnet includes a strip conductor, institute
The left and right ends for stating strip conductor are wound with the first magnet exciting coil and the second magnet exciting coil respectively；First magnet exciting coil and institute
The one end for stating the second magnet exciting coil is drawn from the case respectively, first magnet exciting coil and second magnet exciting coil
The other end respectively with the bidirectional final switch in the first tie point and the second tie point connect；
Further include having third tie point, metal clips and driving lever in the bidirectional final switch, the fixing end of the metal clips
It is connected on the third tie point, the movable end of the metal clips can be in first tie point and second tie point
Between swing back and forth；It is connected with conducting wire on the third tie point, and is drawn from the case；The fixing end of the driving lever connects
It is connected on the middle part of the metal clips, the movable end of the driving lever is directed at the end of the connecting rod by one piece of trigger shrapnel.
The de- bridge-type bistable magnetic latching relay may be at two different stable states, and operation principle is as follows：
When in the first stable state, the entirety of I-shaped magnet steel is tilted to the right, lower right side because magnetic force is contacted with the second magnet,
Its left lower is detached with the first magnet, and left upper portion is close to the left end of double-coil electromagnet, and right upper portion is far from two-wire
Enclose the right end of electromagnet；
Connecting rod is in the left end of its direction of motion, and armature shrapnel is in and is pushed out state, and movable contact is bonded with stationary contact, and first
Armature is connected with the second armature；Meanwhile connecting rod end is detached with driving lever, metal clips resets shape because its own resilient characteristic is in
State, the i.e. movable end of metal clips are connect with the second tie point, and the first magnet exciting coil disconnects at this time, and the second magnet exciting coil connects
It is logical, in waiting for working condition.
When in the second state, the entirety of I-shaped magnet steel is tilted to the left, and lower right side is detached with the second magnet,
Left lower is because magnetic force is contacted with the first magnet, left end of the left upper portion far from double-coil electromagnet, and right upper portion is close
The right end of double-coil electromagnet；
Connecting rod is in the right end of its direction of motion, armature shrapnel because its own resilient characteristic is in reset state, movable contact with
Stationary contact detaches, and the first armature and the second armature disconnect；Meanwhile connecting rod end is contacted and is pressed with driving lever, metal clips is in
It is pushed out state, i.e. the movable end of metal clips connect point contact with second, and the first magnet exciting coil is connected at this time, in waiting for work
State, and the second magnet exciting coil disconnects.
When needing by the first regime shift to the second stable state, Master control chip control lithium battery group gives the second excitation wire
An exciting current is enclosed, the right end of double-coil electromagnet generates magnetic force, attracts the right upper portion of I-shaped magnet steel to be upturned, lean on
The right end of nearly double-coil electromagnet, and the lower right side of I-shaped magnet steel is then detached with the second magnet, while I-shaped magnet steel
Left upper portion is to whereabouts, the left end far from double-coil electromagnet, and the left lower of I-shaped magnet steel is contacted with the first magnet；So
Afterwards I-shaped magnet steel by magnet steel mounting base drive connecting rod move right, connecting rod then pulls armature shrapnel so that movable contact with
Stationary contact detaches, and the first armature and the second armature disconnect；Simultaneously, moving to right with connecting rod, the end of connecting rod are withstood two-way
The driving lever of microswitch simultaneously applies pressure, and driving lever then inwardly moves and the movable end of metal clips is pushed to be put from the second tie point
It moves to the first tie point so that the second magnet exciting coil disconnects, and the first magnet exciting coil is connected, and waits for regime shift next time.From
When two regime shifts to the first stable state, operation principle is then in contrast.
The operation principle of the battery energy management device is as follows：
Each detection chip in the battery manager carries out voltage real-time monitoring to respectively corresponding battery core respectively；With
The growth in charging time, the voltage of every battery core can be also gradually increasing in lithium battery group；When any one detection chip monitors
When the voltage of corresponding battery core is higher than the balanced unlatching value set, which immediately turns on the equilibrium where its own
Device, the equalizer switch in the balancer are closed immediately, connect balanced circuit, and the equalizing resistance in the balancer is from correspondence
Battery core in be equalized electric current, equalizing resistance generates heat immediately, is carried out to corresponding battery core balanced；
When detection chip monitors that this overcharges the voltage of battery core less than setting equilibrium unlatching value, corresponding detection chip is at once
The balancer where its own is closed, the equalizer switch in the balancer then turns off, balanced loop open circuit, equilibrium dress
Equalizing resistance in setting stops fever, and equilibrium finishes.
Core collector of the lithium battery module as hybrid power, it is necessary to have anti-instantaneous pressure, the energy of antisurge
Power, therefore its interior design has de- bridge-type bistable magnetic latching relay and battery energy management device.
De- bridge-type bistable magnetic latching relay designs for mechanical switch, can be overcharged to lithium battery module and mistake
Protection is put, distinctive magnetic keeps the trigger current for taking off bridge structure to belong to moment excitation, therefore need not excessively consider circuit
The phenomenon that overload capacity of bearing capacity and coil is not in coil heating in use, fundamentally solves traditional magnetic
The problem of high pressure and coil heating can not be born existing for guard relay.
Be designed with equalizing resistance in battery energy management device, can the electricity of lithium battery module be higher than 90% when, to its into
Row balancing energy, it is uncertain caused by normal equalizer means to avoid.Even if lithium battery module is in full power state, battery
Energy manager can also carry out the slow play electricity of 5 ~ 8 hours using equalizing resistance, ensure that the consistency of each battery core, it is ensured that lithium
Battery module is safe and reliable.
By the mutual cooperation for taking off bridge-type bistable magnetic latching relay and battery energy management device so that lithium battery module
It can not only realize the connection in series-parallel of free style, and be also equipped with anti-instantaneous pressure, antisurge, high current dynamic equilibrium, big work(
The ability of rate charge and discharge, this is the prerequisite that ensures this system and can implement.
Further, the free modularization lithium battery pack can also replace with super capacitor, since super capacitor has certainly
The characteristics of electric discharge, it is therefore desirable to switch is provided between super capacitor and engine.
A kind of moderate mixing power driving control method used for vehicle, includes the following steps：
A, the charging voltage that opens of free modularization lithium battery pack is set by the control circuit in integrated controller, it is described to open charging voltage
May be set to the free modularization lithium battery pack expires the 90% of piezoelectric voltage；
B, when this system is run, voltage collection circuit in integrated controller to the voltage of the free modularization lithium battery pack into
Row acquisition in real time；
C, when the voltage collection circuit detects that the total voltage of the free modularization lithium battery pack opens charging voltage higher than described
When, generator does not work at this time, and electronic control unit only provides electric power by the free modularization lithium battery pack for line load；
D, when the voltage collection circuit detects that the total voltage of the free modularization lithium battery pack opens charging voltage less than described
When, the voltage collection circuit is fed back to the control circuit immediately, comprehensive control described in the control circuit instantaneous starting
Switching on/off circuit in device processed, the switching on/off circuit directly initiate the power generation using the voltage of the free modularization lithium battery pack
Machine, the generator, which starts to do, at this time determines power generation, and the electronic control unit passes through the generator and the free modularization
Lithium battery pack is powered for the line load simultaneously；
In the meantime, high current is from balanced function using possessed by the free modularization lithium battery pack for this system, by institute
Free modularization lithium battery pack is stated as peak regulation body, it is electric by output power to the generator and the free modularization lithium
The discharge capability of Chi Bao carries out Dynamic Matching and is as follows with reaching the high potential dynamic equilibrium of whole system：
If vehicle is in heavy duty or unexpected acceleration mode, i.e., the current power of the described line load is more than the output of the generator
When power, the output power of the generator is not enough to support the electricity consumption of the line load, then the free modularization lithium electricity
The characteristic that Chi Bao utilizes DC voltage preferential immediately carries out electric power compensation to the line load, negative to meet the power
The current power demand of load；
If vehicle is in underloading or at the uniform velocity transport condition, i.e., the current power of the described line load is less than the output of the generator
When power, the output power of the generator is enough to support the electricity consumption of the line load, and also there are having more than needed, then in the hair
While motor and the free modularization lithium battery pack are line load power supply jointly, the generator is more than needed using it
Power is that the free modularization lithium battery pack carries out mending electricity；
E, when the voltage collection circuit detects that the voltage of the free modularization lithium battery pack has added to the full electricity
When voltage, the voltage collection circuit is fed back to the control circuit immediately, the control circuit start immediately described in open
Power failure road, the switching on/off circuit shut down the generator, stop as the line load and the free Modularized lithium battery
Packet power supply, the electronic control unit are only individually for the line load by the free modularization lithium battery pack and power；
F, when vehicle is in off position, the free modularization lithium battery pack can carry out external fill by filling interface outside
Electricity, until the free modularization lithium battery pack reaches full piezoelectric voltage；
G, when the free modularization lithium battery pack is in the state of generator charging or external charge, the free modularization
The battery energy management device of each lithium battery module carries out dynamic equalization to corresponding lithium battery group respectively in lithium battery pack
It protects, is as follows with overcharging：
Each detection chip in the battery energy management device carries out voltage real-time monitoring to respectively corresponding battery core respectively,
When balanced unlatching value of the voltage of any one Zhi Suoshu battery cores higher than setting, the corresponding detection chip immediately turns on it
Balancer where itself, the equalizer switch in this balancer are closed immediately, connect balanced circuit, described in this
The equalizing resistance in balancer is equalized electric current from the corresponding battery core and generates heat immediately, to corresponding described
Battery core carries out balanced；
If the balancer can not inhibit the battery core voltage to continue to rise, and the voltage of the battery core overcharged when the branch
Higher than setting when overcharging protection value, the Master control chip in the battery energy management device gives the free modularization lithium at once
De- bridge-type bistable magnetic latching relay in battery pack sends break signal, and the lithium battery group gives the de- bridge-type double immediately
Stable state magnetic latching relay discharges an exciting current, and the main contacts of the de- bridge-type bistable magnetic latching relay then turns off
And de- bridge, into disconnecting stable state, charge circuit open circuit, the lithium battery group stops charging, at the same the balancer after
It is continuous to carry out equilibrium；
With the lasting progress for stopping charging post-equalization, when the voltage of the battery core overcharged unlatching value balanced less than setting,
The corresponding detection chip immediately closes off the balancer where its own, described in this balancer
Equalizer switch then turns off, balanced loop open circuit, and the equalizing resistance in this balancer stops fever, balanced complete
Finish；Meanwhile the Master control chip gives the de- bridge-type bistable relay to send closure signal at once, the lithium battery group with
Give the de- bridge-type bistable magnetic latching relay to discharge a reverse energization electric current, the de- bridge-type bistable magnetic keep after
The main contacts of electric appliance is closed immediately and de- bridge, and into stable state is closed, charge circuit is connected, and the lithium battery group recovery is filled
Electricity；
H, when the free modularization lithium battery pack is in discharge condition, each lithium electricity in the free modularization lithium battery pack
The battery energy management device of pond module carries out Cross prevention to corresponding lithium battery group respectively, and specific steps are such as
Under：
Each of the battery energy management device detection chip carries out voltage to the respectively corresponding battery core respectively
Monitoring in real time, when Cross prevention value of the voltage of any one Zhi Suoshu battery cores less than setting, in the battery energy management device
The Master control chip give the de- bridge-type bistable magnetic latching relay to send break signal at once, the lithium battery group with
Give the de- bridge-type bistable magnetic latching relay to discharge an exciting current, the de- bridge-type bistable magnetic keep after
The main contacts of electric appliance then turns off and takes off bridge, and into stable state, discharge loop open circuit is disconnected, the lithium battery group stopping is put
Electricity.
Compared with prior art, the beneficial effects of the invention are as follows：
1, it the innovation of the invention consists in that the energy that generator exports is connected directly between on the DC bus of line load, and connects
The charge circuit of logical lithium battery pack constitutes most simple directly energy self-balancing system, is provided simultaneously with external output variable power
Ability.The system uses total voltage SOC methods, the characteristic that DC voltage is preferential is made full use of, by free Modularized lithium battery
Packet is used as peak regulation body, by the discharge capability of output power to generator and free modularization lithium battery pack into Mobile state
Match, to reach the high potential dynamic equilibrium of whole system.When the output power of generator is not enough to support line load,
This system is discharged jointly by DC bus and generator, is formed double dynamical；When the output power of generator can meet completely
When line load, electricity more than needed is directly filled with lithium battery module by DC bus.Under this design pattern, generator will be with
Peak efficiency carries out determining power generation output.By taking gasoline engine generator as an example, the gasoline engine generator under power output state is determined, burn
Discharge only has 1/3 under Variable power state, can substantially Energy Saving.
2, de- bridge-type bistable magnetic latching relay and energy content of battery pipe are designed with simultaneously in lithium battery module of the invention
Device is managed, lithium battery group is protected by the way of multigroup conjunction collaboration so that lithium battery group forms unique Modular electrical
Pond manages system.Wherein, it is anti-to dynamic lithium battery progress safety to use mechanical switch for de- bridge-type bistable magnetic latching relay
The problems such as shield, high pressure can not be born by solving traditional thyristor, surge.Equalizing resistance is used in battery energy management device
Balancing energy is carried out to lithium battery module, converts the electricity for overcharging battery core in lithium battery module to the thermal energy of equalizing resistance, is solved
The consistency problem of battery core inside lithium battery group of having determined.The combination of the two directly improves the ability to work of lithium battery module,
Anti- high pressure ability and Surge handling capability make it have high current dynamic equalization ability, it can be achieved that free connection in series-parallel, and directly hold
It is charged by 2C.
3, the battery energy management device that the present invention uses can pass through 5 ~ 8 hours in the case of lithium battery module full electricity
Slow play electricity the battery core in lithium battery module is carried out balanced, so that its electricity is restored to the 80% ~ 90% of full piezoelectric voltage, it is ensured that lithium electricity
The consistency of pond module so that lithium battery module can be with 8 ~ 10 years service life.
4, the de- bridge-type bistable magnetic latching relay that the present invention uses only needs swashing for very little when two stable states switch
Electric current to be encouraged, the electricity in consumption lithium battery group need not be continued, the stable state of guard relay then leans on de- bridge to realize, thus
Ensure that there is no energy expenditures when lithium battery group carries out Cross prevention.
5, design of the invention is between HEv systems and Phev systems, cleverly use medium volume battery pack and
The generator of medium volume, simple in structure, performance is stablized, and lasts a long time, and cost is again relatively low, and has power generation direct-drive type
It is mixed dynamic, three big feature of dynamic equalization mathematical model and self adaptive control, especially suitable for such as electro-tricycle, low-speed quadricycle with
And the small-sized low-speed vehicle including battery-operated motor cycle, the multi source contribution system without power grid area in the wild can also be applied.
6, since the present invention has deliberately pulled open balanced range in control method, in addition to free modularization lithium battery pack
（Lithium battery）Outside, the present invention can also receive super capacitor as peak regulation body, can apply in electric vehicle or electronic bus
On.Since super capacitor has the characteristics that self discharge, in order to maintain effectively to work, need super capacitor and generator it
Between by switch linked, the switch can be then the initiation key of these vehicles.
Above description is only the general introduction of technical solution of the present invention, in order to better understand the technical means of the present invention,
And can be implemented in accordance with the contents of the specification, below with presently preferred embodiments of the present invention and after coordinating attached drawing to be described in detail such as.
The specific implementation mode of the present invention is shown in detail by following embodiment and its attached drawing.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and is constituted part of this application, this hair
Bright illustrative embodiments and their description are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is the overall system structure schematic diagram of the present invention；
Fig. 2 is the structural schematic diagram of free modularization lithium battery pack in the present invention；
Fig. 3 is the structural schematic diagram of lithium battery module in the present invention；
Fig. 4 is that the internal structure schematic diagram of bridge-type bistable magnetic latching relay in the closure state is taken off in the present invention；
Fig. 5 is the internal structure schematic diagram taken off in the present invention when bridge-type bistable magnetic latching relay is off；
Fig. 6 is that the connection of double-coil electromagnet and bidirectional final switch that bridge-type bistable magnetic latching relay is taken off in the present invention is closed
System's figure.
Specific implementation mode
It is below with reference to the accompanying drawings and in conjunction with the embodiments, next that the present invention will be described in detail.
It is shown in Figure 1, a kind of Mild hybrid vehicle drive system used for vehicle, by generator 1, free modularization lithium
Battery pack 2, electronic control unit 3, line load 4, integrated controller 5 are constituted；The generator 1 and the free Modularized lithium battery
Packet 2 is directly connect with the electronic control unit 3 by DC transmission line respectively, and the electronic control unit 3 connects with the line load 4
It connects, the generator 1 and the free modularization lithium battery pack 2 can be supplied by the electronic control unit 3 for the line load 4
Electricity；The generator 1 directly can be that the free modularization lithium battery pack 2 is powered by DC transmission line；The Comprehensive Control
Device 5 includes control circuit 6, switching on/off circuit 7 and voltage collection circuit 8；The voltage collection circuit 8 and the free modularization
Lithium battery pack 2 connects, the real-time voltage for monitoring the free modularization lithium battery pack 2；One end of the switching on/off circuit 7 with
The free modularization lithium battery pack 2 connects, and the other end of the switching on/off circuit 7 is connect with the generator 1, for controlling
State 1 start and stop of generator；One end of the control circuit 6 is connect with the voltage collection circuit 8, for receiving the voltage acquisition
The voltage monitoring information that circuit 8 is fed back, the other end of the control circuit 6 is connect with the switching on/off circuit 7, for being opened to described
Power failure road 7 sends start and stop instruction.
Further, the free modularization lithium battery pack 2 can be connect with interface 9 is filled outside, carry out outer charging.
Further, the generator 1 is fuel generator or photovoltaic generator.
Further, the line load 4 is AC induction motor, permanent magnet synchronous motor or permanent magnetic brushless.
Further, the generator 1 carries out determining power work, and output voltage is equal to the free Modularized lithium battery
The full piezoelectric voltage of packet 2.
Further, the output power of the generator 1 is slightly larger than the rated power of the line load 4, and the hair
The output power of motor 1 is less than the maximum power of the line load 4.
Further, shown in Figure 2, the free modularization lithium battery pack 2 has the function of balancing energy by several
The free connection in series-parallel of lithium battery module form.
Further, shown in Figure 3, the lithium battery module includes lithium battery group 21,23 and of battery energy management device
De- bridge-type bistable magnetic latching relay 22；The lithium battery group 21 is connected in series by several battery cores 211；The energy content of battery
The inside of manager 23 includes that there are one Master control chip 231 and several and the battery cores 211 in the lithium battery group 21
The corresponding balancer of quantity, each balancer is by detection chip 232, equalizer switch 233 and equalizing resistance 234
It is connected in series, each balancer is connected across the positive and negative end of the corresponding battery core 211, the master control coremaking respectively
Piece 231 is connect with each detection chip 232 respectively；The switch sections of the de- bridge-type bistable magnetic latching relay 22 with
The lithium battery group 21 is connected, electromagnet portion and the Master control chip of the de- bridge-type bistable magnetic latching relay 22
231 connections.
Further, referring to shown in Fig. 4-6, the de- bridge-type bistable magnetic latching relay 22 includes a case
2213, the first armature 221, the second armature 222, double-coil electromagnet 223, I-shaped magnet steel are provided in the case 2213
224, the first magnet 225, the second magnet 226 and bidirectional final switch 227；
The lower end of first armature 221 is exposed to outside the case 2213, and the upper end of first armature 221 is provided with stationary contact
Point 228；The lower end of second armature 222 is exposed to outside the case 2213, and the upper end of second armature 222 is provided with one
Block armature shrapnel 229；The middle part of the armature shrapnel 229 is provided with movable contact 2210, the movable contact 2210 and the stationary contact
Point 228 is corresponding, and the lower end of the armature shrapnel 229 is provided with a connecting rod 2211 normal thereto；The connecting rod 2211
Middle part is hinged, and there are one magnet steel fixed seats 2212, and the I-shaped magnet steel 224 is arranged in the magnet steel fixed seat 2212, described
First magnet 225 and second magnet 226 are located at the left and right sides of 224 lower section of the I-shaped magnet steel；The two-wire
Circle electromagnet 223 is located at the top of the I-shaped magnet steel 224, and the double-coil electromagnet 223 includes a strip conductor, institute
The left and right ends for stating strip conductor are wound with the first magnet exciting coil and the second magnet exciting coil respectively；First magnet exciting coil and institute
The one end for stating the second magnet exciting coil is drawn from the case 2213 respectively, first magnet exciting coil and second excitation wire
The other end of circle respectively in the bidirectional final switch 227 the first tie point 2271 and the second tie point 2272 connect；
Further include having third tie point 2273, metal clips 2274 and driving lever 2275, the gold in the bidirectional final switch 227
The fixing end for belonging to shrapnel 2274 is connected on the third tie point 2273, and the movable end of the metal clips 2274 can be described
It swings back and forth between first tie point 2271 and second tie point 2272；It is connected with and leads on the third tie point 2273
Line, and drawn from the case 2213；The fixing end of the driving lever 2275 is connected to the middle part of the metal clips 2274, institute
The movable end for stating driving lever 2275 is directed at the end of the connecting rod 2211 by one piece of trigger shrapnel 2214.
Further, the packet of free Modularized lithium battery 2 can also replace with super capacitor, since super capacitor has certainly
The characteristics of electric discharge, it is therefore desirable to switch is provided between super capacitor and engine
A kind of moderate mixing power driving control method used for vehicle, includes the following steps：
A, the charging voltage that opens of free modularization lithium battery pack 2 is set by the control circuit 6 in integrated controller 5, described open is filled
Voltage, which may be set to the free modularization lithium battery pack 2, expires the 90% of piezoelectric voltage；
B, when this system is run, the electricity of voltage collection circuit 8 in integrated controller 5 to the free modularization lithium battery pack 2
Pressure is acquired in real time；
C, when the voltage collection circuit 8 detects that the total voltage of the free modularization lithium battery pack 2 opens charging higher than described
When pressure, generator 1 does not work at this time, and electronic control unit 3 is only that line load 4 provides by the free modularization lithium battery pack 2
Electric power；
D, when the voltage collection circuit 8 detects that the total voltage of the free modularization lithium battery pack 2 opens charging less than described
When pressure, the voltage collection circuit 8 is fed back to the control circuit 6 immediately, comprehensive described in 6 instantaneous starting of the control circuit
Switching on/off circuit 7 in hop controller 5, the switching on/off circuit 7 are directly initiated using the voltage of the free modularization lithium battery pack 2
The generator 1, the generator 1, which starts to do, at this time determines power generation, and the electronic control unit 3 passes through the generator 1 and institute
It states free modularization lithium battery pack 2 while powering for the line load 4；
In the meantime, high current is from balanced function using possessed by the free modularization lithium battery pack 2 for this system, by institute
It states free modularization lithium battery pack 2 and is used as peak regulation body, pass through output power to the generator 1 and the free modularization lithium
The discharge capability of battery pack 2 carries out Dynamic Matching and is as follows with reaching the dynamic equilibrium of whole system：
If vehicle is in heavy duty or unexpected acceleration mode, i.e. the current power of the line load 4 is more than the defeated of the generator 1
When going out power, the output power of the generator 1 is not enough to support the electricity consumption of the line load 4, then the free modularization
The characteristic that lithium battery pack 2 utilizes DC voltage preferential immediately carries out electric power compensation, described in satisfaction to the line load 4
The current power demand of line load 4；
If vehicle is in underloading or at the uniform velocity transport condition, i.e. the current power of the line load 4 is less than the defeated of the generator 1
When going out power, the output power of the generator 1 is enough to support the electricity consumption of the line load 4, and also there are having more than needed, then in institute
While to state generator 1 and the free modularization lithium battery pack 2 jointly be that the line load 4 is powered, the profit of the generator 1
It is that the free modularization lithium battery pack 2 carries out mending electricity with its power margin；
E, when to detect that the voltage of the free modularization lithium battery pack 2 has added to described full for the voltage collection circuit 8
When piezoelectric voltage, the voltage collection circuit 8 is fed back to the control circuit 6 immediately, and the control circuit 6 starts institute immediately
Switching on/off circuit 7 is stated, the switching on/off circuit 7 shuts down the generator 1, stops as the line load 4 and the free module
Change lithium battery pack 2 to power, the electronic control unit 3 is only individually for the line load 4 by the free modularization lithium battery pack 2
Power supply；
F, when vehicle is in off position, the free modularization lithium battery pack 2 can carry out external fill by filling interface 9 outside
Electricity, until the free modularization lithium battery pack 2 reaches full piezoelectric voltage；
G, when the free modularization lithium battery pack 2 is in the state of generator charging or external charge, the free module
Change the battery energy management device 23 of each lithium battery module in lithium battery pack 2 respectively to corresponding lithium battery group 21 into action
State equilibrium and protection is overcharged, is as follows：
Each detection chip 232 in the battery energy management device 23 carries out voltage to respectively corresponding battery core 211 respectively
Monitoring in real time, when balanced unlatching value of the voltage of any one Zhi Suoshu battery cores 211 higher than setting, the corresponding detection core
Piece 232 immediately turns on the balancer where its own, and the equalizer switch 233 in this balancer is closed, connects immediately
Lead to equilibrium circuit, the equalizing resistance 234 in this balancer is equalized electricity from the corresponding battery core 211
It flows and generates heat immediately, equilibrium is carried out to the corresponding battery core 211；
If the balancer can not inhibit the battery core 211 voltage to continue to rise, and the battery core 211 overcharged when the branch
Voltage higher than setting when overcharging protection value, Master control chip 231 in the battery energy management device 23 is given described at once
De- bridge-type bistable magnetic latching relay 22 in free modularization lithium battery pack 2 sends break signal, the lithium battery group 21
Give the de- bridge-type bistable magnetic latching relay 22 to discharge an exciting current immediately, the de- bridge-type bistable magnetic keep after
The main contacts of electric appliance 22 then turns off and takes off bridge, and into stable state, charge circuit open circuit is disconnected, the lithium battery group 21 stops
Charging, while the balancer continues equilibrium；
With the lasting progress for stopping charging post-equalization, when the voltage of the battery core 211 overcharged is less than the balanced unlatching value of setting
When, the corresponding detection chip 232 immediately closes off the balancer where its own, equal in this balancer
Weighing apparatus switch 233 then turns off, balanced loop open circuit, and the equalizing resistance 234 in this balancer stops fever,
Weighing apparatus finishes；Meanwhile the Master control chip 231 gives the de- bridge-type bistable relay 22 to send closure signal at once, it is described
Lithium battery group 21 gives the de- bridge-type bistable magnetic latching relay 22 to discharge a reverse energization electric current, the de- bridge-type immediately
The main contacts of bistable magnetic latching relay 22 is closed immediately and de- bridge, and into stable state is closed, charge circuit is connected, described
Lithium battery group 21 restores charging；
H, when the free modularization lithium battery pack 2 is in discharge condition, each lithium in the free modularization lithium battery pack 2
The battery energy management device 23 of battery module carries out Cross prevention to corresponding lithium battery group 21 respectively, specifically
Steps are as follows：
State each of battery energy management device 23 detection chip 232 respectively to the respectively corresponding battery core 211 into
Row voltage real-time monitoring, when Cross prevention value of the voltage of any one Zhi Suoshu battery cores 211 less than setting, the energy content of battery
The Master control chip 231 in manager 23 sends breaking letter to the de- bridge-type bistable magnetic latching relay 22 at once
Number, the lithium battery group 21 gives the de- bridge-type bistable magnetic latching relay 22 to discharge an exciting current, the institute immediately
The main contacts for stating de- bridge-type bistable magnetic latching relay 22 then turns off and takes off bridge, into disconnection stable state, discharge loop
Open circuit, the lithium battery group 21 stop electric discharge.
Actual test proves that the three-wheel traction engine of Same Efficieney, technology using the present invention is than fuel vehicle Energy Saving
50%.It is crucial that the free modularization lithium battery pack electricity that this system uses is smaller so that the hardware cost of this system is low
In traditional combustion engine, but the service life is approximately equal to internal combustion engine, this is never sent out in all new energy vehicles in the current whole world
The thing given birth to has great promotional value.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.Any modification made by all within the spirits and principles of the present invention,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of Mild hybrid vehicle drive system used for vehicle, it is characterised in that：By generator（1）, free modularization lithium
Battery pack（2）, electronic control unit（3）, line load（4）, integrated controller（5）It constitutes；The generator（1）With the free module
Block lithium battery pack（2）Respectively by DC transmission line directly with the electronic control unit（3）Connection, the electronic control unit（3）With
The line load（4）Connection, the generator（1）With the free modularization lithium battery pack（2）The automatically controlled list can be passed through
Member（3）For the line load（4）Power supply；The generator（1）Can directly be the free modularization by DC transmission line
Lithium battery pack（2）Power supply；The integrated controller（5）It include control circuit（6）, switching on/off circuit（7）And voltage collection circuit
（8）；The voltage collection circuit（8）With the free modularization lithium battery pack（2）Connection, for monitoring the free modularization
Lithium battery pack（2）Real-time voltage；The switching on/off circuit（7）One end and the free modularization lithium battery pack（2）Connection, institute
State switching on/off circuit（7）The other end and the generator（1）Connection, for controlling the generator（1）Start and stop；The control electricity
Road（6）One end and the voltage collection circuit（8）Connection, for receiving the voltage collection circuit（8）The voltage of feedback is supervised
Measurement information, the control circuit（6）The other end and the switching on/off circuit（7）Connection is used for the switching on/off circuit（7）It sends
Start and stop instruct.
2. Mild hybrid vehicle drive system used for vehicle according to claim 1, it is characterised in that：The free module
Block lithium battery pack（2）With fill interface outside（9）Connection carries out outer charging.
3. Mild hybrid vehicle drive system used for vehicle according to claim 1, it is characterised in that：The generator
（1）For fuel generator or photovoltaic generator.
4. Mild hybrid vehicle drive system used for vehicle according to claim 1, it is characterised in that：The power is negative
It carries（4）For AC induction motor, permanent magnet synchronous motor or permanent magnetic brushless.
5. Mild hybrid vehicle drive system used for vehicle according to claim 1, it is characterised in that：The generator
（1）It carries out determining power work, output voltage is equal to the free modularization lithium battery pack（2）Full piezoelectric voltage.
6. Mild hybrid vehicle drive system used for vehicle according to claim 1, it is characterised in that：The generator
（1）Output power be slightly larger than the line load（4）Rated power, and the generator（1）Output power be less than institute
State line load（4）Maximum power.
7. Mild hybrid vehicle drive system used for vehicle according to claim 1, it is characterised in that：The free module
Block lithium battery pack（2）It is formed by several free connection in series-parallel of lithium battery module with balancing energy function.
8. Mild hybrid vehicle drive system used for vehicle according to claim 7, it is characterised in that：The lithium battery
Module includes lithium battery group（21）, battery energy management device（23）With de- bridge-type bistable magnetic latching relay（22）；The lithium
Battery pack（21）By several battery cores（211）It is connected in series；The battery energy management device（23）Inside include that there are one main
Control chip（231）With several and the lithium battery group（21）The interior battery core（211）The corresponding balancer of quantity,
Each balancer is by detection chip（232）, equalizer switch（233）And equalizing resistance（234）It is connected in series, Mei Gesuo
It states balancer and is connected across the corresponding battery core respectively（211）Positive and negative end, the Master control chip（231）Respectively with
Each detection chip（232）Connection；The de- bridge-type bistable magnetic latching relay（22）Switch sections and the lithium
Battery pack（21）Series connection, the de- bridge-type bistable magnetic latching relay（22）Electromagnet portion and the Master control chip
（231）Connection.
9. Mild hybrid vehicle drive system used for vehicle according to claim 7, it is characterised in that：The de- bridge-type
Bistable magnetic latching relay（22）Including a case（2213）, the case（2213）Inside it is provided with the first armature（221）、
Second armature（222）, double-coil electromagnet（223）, I-shaped magnet steel（224）, the first magnet（225）, the second magnet（226）With
Bidirectional final switchs（227）；
First armature（221）Lower end be exposed to the case（2213）Outside, first armature（221）Upper end setting
There is stationary contact（228）；Second armature（222）Lower end be exposed to the case（2213）Outside, second armature（222）
Upper end be provided with one piece of armature shrapnel（229）；The armature shrapnel（229）Middle part be provided with movable contact（2210）, described
Movable contact（2210）With the stationary contact（228）It is corresponding, the armature shrapnel（229）Lower end be provided with one it is normal thereto
Connecting rod（2211）；The connecting rod（2211）Hinged there are one magnet steel fixed seats at middle part（2212）, the I-shaped magnet steel
（224）It is arranged in the magnet steel fixed seat（2212）In, first magnet（225）With second magnet（226）Position respectively
In the I-shaped magnet steel（224）The left and right sides of lower section；The double-coil electromagnet（223）Positioned at the I-shaped magnet steel
（224）Top, the double-coil electromagnet（223）Including a strip conductor, the left and right ends of the strip conductor are distinguished
It is wound with the first magnet exciting coil and the second magnet exciting coil；Distinguish one end of first magnet exciting coil and second magnet exciting coil
From the case（2213）The other end of middle extraction, first magnet exciting coil and second magnet exciting coil respectively with it is described double
To microswitch（227）In the first tie point（2271）With the second tie point（2272）Connection；
The bidirectional final switch（227）In further include having third tie point（2273）, metal clips（2274）And driving lever
（2275）, the metal clips（2274）Fixing end be connected to the third tie point（2273）On, the metal clips
（2274）Movable end can be in first tie point（2271）With second tie point（2272）Between swing back and forth；It is described
Third tie point（2273）On be connected with conducting wire, and from the case（2213）Middle extraction；The driving lever（2275）Fixing end
It is connected to the metal clips（2274）Middle part, the driving lever（2275）Movable end pass through one piece of trigger shrapnel（2214）It is right
The accurate connecting rod（2211）End.
10. a kind of moderate mixing power driving control method used for vehicle, which is characterized in that include the following steps：
Pass through integrated controller（5）In control circuit（6）The free modularization lithium battery pack of setting（2）Open charging voltage, it is described
It opens charging voltage and may be set to the free modularization lithium battery pack（2）The 80% ~ 90% of full piezoelectric voltage；
When this system is run, integrated controller（5）In voltage collection circuit（8）To the free modularization lithium battery pack（2）
Voltage acquired in real time；
When the voltage collection circuit（8）Detect the free modularization lithium battery pack（2）Total voltage filled higher than described open
When voltage, generator at this time（1）It does not work, electronic control unit（3）Only pass through the free modularization lithium battery pack（2）It is negative for power
It carries（4）Electric power is provided；
When the voltage collection circuit（8）Detect the free modularization lithium battery pack（2）Total voltage filled less than described open
When voltage, the voltage collection circuit（8）Immediately to the control circuit（6）It is fed back, the control circuit（6）Instantaneously open
Move the integrated controller（5）In switching on/off circuit（7）, the switching on/off circuit（7）Utilize the free modularization lithium battery pack
（2）Voltage directly initiate the generator（1）, the generator at this time（1）Start to do and determines power generation, the electronic control unit
（3）Pass through the generator（1）With the free modularization lithium battery pack（2）It is the line load simultaneously（4）Power supply；
In the meantime, this system utilizes the free modularization lithium battery pack（2）Possessed high current, will from balanced function
The free modularization lithium battery pack（2）As peak regulation body, by the generator（1）Output power and the free module
Block lithium battery pack（2）Discharge capability carry out Dynamic Matching be as follows with reaching the dynamic equilibrium of whole system：
If vehicle is in heavy duty or unexpected acceleration mode, i.e., the described line load（4）Current power be more than the generator（1）
Output power when, the generator（1）Output power be not enough to support the line load（4）Electricity consumption, then it is described from
By Modularized lithium battery packet（2）The characteristic for utilizing DC voltage preferential immediately, to the line load（4）Carry out electric power benefit
It repays, to meet the line load（4）Current power demand；
If vehicle is in underloading or at the uniform velocity transport condition, i.e., the described line load（4）Current power be less than the generator（1）
Output power when, the generator（1）Output power be enough to support the line load（4）Electricity consumption, and also there are richnesses
It is remaining, then in the generator（1）With the free modularization lithium battery pack（2）It is the line load jointly（4）That powers is same
When, the generator（1）It is the free modularization lithium battery pack using its power margin（2）It carries out mending electricity；
When the voltage collection circuit（8）Detect the free modularization lithium battery pack（2）Voltage added to it is described
When full piezoelectric voltage, the voltage collection circuit（8）Immediately to the control circuit（6）It is fed back, the control circuit（6）With
Start the switching on/off circuit（7）, the switching on/off circuit（7）Shut down the generator（1）, stop as the line load（4）
And the free modularization lithium battery pack（2）Power supply, the electronic control unit（3）Only pass through the free modularization lithium battery pack
（2）It is individually for the line load（4）Power supply；
When vehicle is in off position, the free modularization lithium battery pack（2）It can be by filling interface outside（9）It carries out external
Charging, until the free modularization lithium battery pack（2）Reach full piezoelectric voltage；
In the free modularization lithium battery pack（2）When state in generator charging or external charge, the free module
Change lithium battery pack（2）In each lithium battery module battery energy management device（23）Respectively to corresponding lithium battery group（21）
It carries out dynamic equalization and overcharges protection, be as follows：
The battery energy management device（23）In each detection chip（232）Respectively to respectively corresponding battery core（211）Into
Row voltage real-time monitoring, when any one Zhi Suoshu battery cores（211）Voltage higher than setting balanced unlatching value when, corresponding institute
State detection chip（232）Immediately turn on the balancer where its own, the equalizer switch in this balancer（233）
It is closed immediately, connects balanced circuit, the equalizing resistance in this balancer（234）From the corresponding battery core
（211）In be equalized electric current and generate heat immediately, to the corresponding battery core（211）It carries out balanced；
If the balancer can not inhibit the battery core（211）Voltage continues to rise, and works as the battery core that the branch overcharges
（211）Voltage higher than setting when overcharging protection value, the battery energy management device（23）In Master control chip（231）It is vertical
It carves to the free modularization lithium battery pack（2）In de- bridge-type bistable magnetic latching relay（22）Send break signal, institute
State lithium battery group（21）The de- bridge-type bistable magnetic latching relay is given immediately（22）Discharge an exciting current, the de- bridge
Formula bistable magnetic latching relay（22）Main contacts then turn off and take off bridge, into disconnect stable state, charge circuit open circuit,
The lithium battery group（21）Stop charging, while the balancer continues equilibrium；
With the lasting progress for stopping charging post-equalization, when the battery core overcharged（211）Voltage balanced less than setting open
When value, the corresponding detection chip（232）The balancer where its own is immediately closed off, in this balancer
Equalizer switch（233）It then turns off, balanced loop open circuit, the equalizing resistance in this balancer（234）Stop
It only generates heat, equilibrium finishes；Meanwhile the Master control chip（231）The de- bridge-type bistable relay is given at once（22）It sends
Closure signal, the lithium battery group（21）The de- bridge-type bistable magnetic latching relay is given immediately（22）Release one is reversed to swash
Encourage electric current, the de- bridge-type bistable magnetic latching relay（22）Main contacts be closed immediately and de- bridge, stablize shape into being closed
State, charge circuit are connected, the lithium battery group（21）Restore charging；
In the free modularization lithium battery pack（2）When in discharge condition, the free modularization lithium battery pack（2）In it is each
The battery energy management device of lithium battery module（23）Respectively to corresponding lithium battery group（21）It carried out putting guarantor
Shield, is as follows：
The battery energy management device（23）Each of the detection chip（232）Respectively to the respectively corresponding battery core
（211）Voltage real-time monitoring is carried out, when any one Zhi Suoshu battery cores（211）Voltage less than setting Cross prevention value when, institute
State battery energy management device（23）In the Master control chip（231）The de- bridge-type bistable magnetic latching relay is given at once
（22）Send break signal, the lithium battery group（21）The de- bridge-type bistable magnetic latching relay is given immediately（22）Release one
A exciting current, the de- bridge-type bistable magnetic latching relay（22）Main contacts then turn off and take off bridge, into disconnected
Open stable state, discharge loop open circuit, the lithium battery group（21）Stop electric discharge.
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| CN201810085775.1A CN108382214A (en) | 2018-01-29 | 2018-01-29 | A kind of Mild hybrid vehicle drive system used for vehicle and control method |
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| CN201810085775.1A CN108382214A (en) | 2018-01-29 | 2018-01-29 | A kind of Mild hybrid vehicle drive system used for vehicle and control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112109698A (en) * | 2020-09-25 | 2020-12-22 | 长城汽车股份有限公司 | Vehicle control method, device, medium and vehicle |
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