CN106004501B - A kind of electrokinetic cell is connected system and control method with super capacitor - Google Patents
A kind of electrokinetic cell is connected system and control method with super capacitor Download PDFInfo
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- CN106004501B CN106004501B CN201610529666.5A CN201610529666A CN106004501B CN 106004501 B CN106004501 B CN 106004501B CN 201610529666 A CN201610529666 A CN 201610529666A CN 106004501 B CN106004501 B CN 106004501B
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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
- 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
- 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
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
-
- 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
- B60L2260/00—Operating Modes
- B60L2260/10—Temporary overload
- B60L2260/16—Temporary overload of electrical drive trains
- B60L2260/162—Temporary overload of electrical drive trains of electrical cells or capacitors
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of electrokinetic cell to be connected system and control method with super capacitor, pass through the first IGCT, second IGCT and the 3rd IGCT carry out the connection of super capacitor group and power battery pack, control module obtains the information state of vehicle by CAN/LIN buses or signal wire, and the power battery voltage with collecting, super capacitor group voltage and busbar voltage are judged together, control the first IGCT, the break-make of second IGCT and the 3rd IGCT, realize effective distribution of energy and take over seamlessly, so that rush of current reduces, system reliability is allowed to improve, lift vehicle starting and accelerate grade climbing performance and braking descending energy regenerating, lift super capacitor availability.
Description
Technical field
The present invention relates to field of hybrid electric vehicles, and in particular to a kind of electrokinetic cell is connected system and control with super capacitor
Method processed.
Background technology
Our times energy problem getting worse, people are finding various solutions, are tapping a new source of energy, improve the energy
Utilization rate；Hybrid electric vehicle industry is in the ascendant, and it has the characteristics that energy-saving and environmental protection and efficient, by extensive concern and
Pay much attention to；Dynamical system therein is the core of hybrid vehicle, improves the capacity usage ratio of dynamical system, extends it and make
It is exactly the core focus that we pay close attention to life-span, energy-conserving and environment-protective.
The existing hybrid vehicle in China and corresponding scheme typically take pure battery or purely capacitive storage electric energy
Method, when vehicle travels in city, can continually start, accelerate and braking, start and accelerate when engine can moment will
Many energy are sought, battery now needs to provide high current, can so cause the damage of battery, shorten its service life；Sending out
When motivation is braked, conventional batteries can not effectively recover energy, substantial amounts of braking energy be by brake block friction, produce heat and
It is lost in.
Current system carries out electrokinetic cell and super capacitor using diode and contact-making switch or changed power device DC/DC
Coupling, can carry out energy regenerating and super capacitor charging, but use changed power device DC/DC connection electrokinetic cells with surpass
Level electric capacity may result in connection system complex, volume is big, cost is higher, and energy regenerating and startup energy auxiliary are by power
The limitation of variator DC/DC capacity；And diode is used alone and is connected with contact-making switch, the voltage of super capacitor will be clamped
The voltage of electrokinetic cell is arrived in position, causes super capacitor utilization rate very low；And because electrokinetic cell and super capacitor are all that capacitive is born
Carry, contact-making switch act when rush of current it is bigger, cause contact-making switch service life reduction, be easily damaged so that system it is reliable
Property reduce.
The content of the invention
It is an object of the invention to provide the mixed power of electric automobile electricity electricity for mixing composition with electrokinetic cell for super capacitor
System, lifting vehicle starting accelerate grade climbing performance and braking descending energy regenerating performance and can lift super capacitor availability
A kind of electrokinetic cell system and control method are connected with super capacitor.
The present invention is achieved through the following technical solutions：A kind of electrokinetic cell is connected system, including the first crystalline substance with super capacitor
Brake tube, the second IGCT, the 3rd IGCT, first voltage detection module, second voltage detection module, tertiary voltage detection mould
Block, switch, resistance, control module, motor, electric machine controller, the power battery pack and some super of some electrokinetic cells composition
Electric capacity composition super capacitor group, the control module connect respectively first voltage detection module, second voltage detection module and
Tertiary voltage detection module, the first voltage detection module connection power battery pack are shared in the electricity of detection power battery pack
Pressure；The second voltage detection module connection super capacitor group is used for the voltage for detecting super capacitor group；The tertiary voltage inspection
The electric machine controller for surveying module connection and motor connection is used for the voltage for detecting bus；The control module is also respectively connected to
The gate pole of the gate pole of one IGCT, the gate pole of the second IGCT and the 3rd IGCT；The anode of first IGCT is connected to
The positive pole of power battery pack, the negative electrode of first IGCT are connected to one end of switch, and one end of the switch is also connected to
The anode of second IGCT, the anode of second IGCT are also connected to the negative electrode of the 3rd IGCT, the 3rd IGCT
Negative electrode be also connected to electric machine controller, the other end of the switch is connected to one end of resistance, and the other end of the resistance connects
The negative electrode of the second IGCT is connected to, the anode of the 3rd IGCT is also connected to the negative electrode of the second IGCT, and described second is brilliant
The negative electrode of brake tube is connected to one end of super capacitor group, and the negative pole of the power battery pack is also connected to the another of super capacitor group
End, the other end of the super capacitor group are also connected to electric machine controller；Wireless module use is additionally provided with the control module
Information is sent in receiving；The resistance is preliminary filling resistance；First IGCT, the second IGCT and the 3rd IGCT are all to be single
To gate level turn-off thyristor；The control module also obtains the information state of vehicle by CAN/LIN buses or signal wire.
A kind of electrokinetic cell is connected system control method with super capacitor, and the maximum operating voltage of super capacitor group is Vmax
And optionally greater than the ceiling voltage of power battery pack, the minimum operating voltage of super capacitor group is Vmin, super capacitor group
Pre-charge pressure is Vpc, and step is as follows：
a）Vehicle-state is detected, vehicle, which remains static, then enters step b, and vehicle is in starting state and then enters step
C, vehicle are in normally travel state and then enter step d；
b）Vehicle remains static, then control module by first voltage detection module, second voltage detection module and
Tertiary voltage detection module real-time acquisition testing power battery pack, super capacitor group and busbar voltage are simultaneously also total by CAN/LIN
Line or signal wire obtain the information state of vehicle, if the voltage of super capacitor group is less than pre-charge pressure Vpc set in advance, make
The first IGCT of energy, except the second IGCT of energy and the 3rd IGCT and closure switch, is filled using preliminary filling resistance to super capacitor group
Electricity is until the voltage of super capacitor group reaches pre-charge pressure Vpc, into step e；If the voltage of super capacitor group is not less than advance
The pre-charge pressure Vpc of setting, then also enter step e；
c）Vehicle is in starting state, then control module by first voltage detection module, second voltage detection module and
Tertiary voltage detection module real-time acquisition testing power battery pack, super capacitor group and busbar voltage are simultaneously also total by CAN/LIN
Line or signal wire obtain the information state of vehicle, if the voltage of super capacitor group is higher than the minimum operating voltage set as Vmin,
Then except the first IGCT of energy and the second IGCT, enabled 3rd IGCT simultaneously disconnects switch, completely independent using super capacitor group
Energy is provided by electric machine controller motor so as to which towing vehicle motion is until the depleted of energy of super capacitor group so that super
The operating voltage of level capacitance group reaches minimum operating voltage Vmin, into step f；If the voltage of super capacitor group is less than setting
Minimum operating voltage Vmin, then into step g；
d）Vehicle is in normally travel state, then control module detects mould by first voltage detection module, second voltage
Block and tertiary voltage detection module real-time acquisition testing power battery pack, super capacitor group and busbar voltage simultaneously also pass through CAN/
LIN buses or signal wire obtain the information state of vehicle, if there is not vehicle braking conditions or anxious accelerated condition, keep car
Normally travel；If there are vehicle braking conditions, into step h, if there is vehicle urgency accelerated condition, into step i；
e）The voltage of super capacitor group is not less than pre-charge pressure Vpc set in advance, then enables the second IGCT and first
IGCT simultaneously removes the 3rd IGCT of energy, disconnects switch, allows power battery pack to use the first IGCT and the second crystalline substance with super capacitor
Brake tube carries out parallel connection, allows power battery pack to be charged directly to super capacitor group, power battery pack is protected with super capacitor group voltage
Hold consistent, end flow wait vehicle launch signal；
f）The operating voltage of super capacitor group reaches minimum operating voltage Vmin, then enables the first IGCT, cause bus
Voltage is higher than the voltage of super capacitor group, allows for the 3rd IGCT because cathode voltage is higher than cathode voltage and automatic cut-off,
Cause power battery pack to make normal vehicle operation to electric machine controller motor separately through the first IGCT conveying energy, enter
Enter step d；
g）Minimum operating voltage Vmin of the voltage of super capacitor group less than setting, then it is assumed that super capacitor group is uncharged,
Just enabled first IGCT, except the second IGCT of energy and the 3rd IGCT, closure switch, provide energy with power battery pack and start
Vehicle enters normally travel and is pre-charged to super capacitor group, into step d；
h）There are braking conditions in vehicle, and due to motor by electric machine controller to bus feedback energy, busbar voltage is by height
In power battery voltage and super capacitor group voltage, the first IGCT and the 3rd IGCT are because cathode voltage is higher than positive pole electricity
Press automatic cut-off, enable the second IGCT immediately, the energy of all feedbacks is all recovered in super capacitor group, until braking
Situation terminates；Detect whether vehicle speed is 0 again, enter static charging process step b if vehicle speed is 0；If vehicle car
Speed does not return to normal driving process step d for 0；
i）There is anxious accelerated condition in vehicle, then keeps the first IGCT and the 3rd IGCT to be in enabled state, due to urgency
Acceleration causes bus current big, therefore busbar voltage will decline, when busbar voltage drops to super-capacitor voltage, the 3rd IGCT
It will turn on so that super capacitor group and power battery pack provide energy driving vehicle simultaneously, until anxious accelerated condition terminates, return
Normal driving process step d.
In the step b and step e, control module detects vehicle launch signal in real time, if detecting vehicle launch signal
Then enter in step c；During normal vehicle operation, it is enabled state to keep the 3rd IGCT；Power electric in the step e
Pond group and super capacitor are in parallel using the first IGCT and the progress of the second IGCT, the first IGCT and the second IGCT equivalent to
Two diodes in parallel；When the energy of all feedbacks is all recovered in super capacitor group in the step h and except the first brilliant lock of energy
Pipe signal but keep the 3rd IGCT signal in enabled state.
The present invention carries out super capacitor group and power battery pack by the first IGCT, the second IGCT and the 3rd IGCT
Connection, control module obtains the information state of vehicle, and the power electric with collecting by CAN/LIN buses or signal wire
Pond group voltage, super capacitor group voltage and busbar voltage are judged together, control the first IGCT, the second IGCT and the 3rd
The break-make of IGCT, to realize effective distribution of energy and take over seamlessly so that rush of current reduces, and allows system reliability to improve,
Lift vehicle starting and accelerate grade climbing performance and braking descending energy regenerating, lift super capacitor availability.
The present invention is advantageous in that：1）Super capacitor group and power battery pack energy be all when switching nature shut-off and
Naturally turn on, switching is smooth, and rush of current is small, and system reliability is high；2）Super capacitor group can be used voltage range wide, than dynamic
It can also be worked in the case that power battery voltage is much lower, the effect of super capacitor group can be played to greatest extent；3）Vehicle launch
During with braking, all only had as the energy needed for super capacitor group output vehicle launch and the energy of recovery braking, electrokinetic cell
Energy is provided in normally travel, frequent high current charge-discharge is avoided, effectively protects system lifetim；4）Control letter simple in construction
Just, cost reduces.
Brief description of the drawings
Fig. 1 is the system connection diagram of the present invention.
Fig. 2 is the system job control flow chart of the present invention.
Embodiment
Below in conjunction with the accompanying drawings with embodiment, the invention will be further described.
See Fig. 1 to Fig. 2, a kind of electrokinetic cell is connected system, including the first IGCT T1, the second IGCT with super capacitor
T2, the 3rd IGCT T3, first voltage detection module, second voltage detection module, tertiary voltage detection module, switch S1, electricity
Hinder R1, control module, motor, electric machine controller, the power battery pack of some electrokinetic cells composition and some super capacitors composition
Super capacitor group, the control module connects first voltage detection module, second voltage detection module and tertiary voltage respectively
Detection module, the first voltage detection module connection power battery pack are shared in the voltage of detection power battery pack；Described
Two voltage detection modules connection super capacitor group is used for the voltage for detecting super capacitor group；The tertiary voltage detection module connection
It is used for the voltage that detects bus with the electric machine controller of motor connection；The control module is also respectively connected to the first IGCT T1
Gate pole, the second IGCT T2 gate pole and the 3rd IGCT T3 gate pole；The anode of the first IGCT T1 is connected to dynamic
The positive pole of power battery pack, the negative electrode of the first IGCT T1 are connected to switch S1 one end, and one end of the switch S1 also connects
The second IGCT T2 anode is connected to, the anode of the second IGCT T2 is also connected to the 3rd IGCT T3 negative electrode, described
3rd IGCT T3 negative electrode is also connected to electric machine controller, and the other end of the switch S1 is connected to resistance R1 one end, institute
The other end for stating resistance R1 is connected to the second IGCT T2 negative electrode, and the anode of the 3rd IGCT T3 is also connected to the second crystalline substance
Brake tube T2 negative electrode, the negative electrode of the second IGCT T2 are connected to one end of super capacitor group, and the power battery pack is born
Pole is also connected to the other end of super capacitor group, and the other end of the super capacitor group is also connected to electric machine controller；The control
Be additionally provided with molding block wireless module be used for receive transmission information；The resistance R1 is preliminary filling resistance；First IGCT
T1, the second IGCT T2 and the 3rd IGCT T3 are unidirectional gate level turn-off thyristor；The control module also passes through CAN/
LIN buses or signal wire obtain the information state of vehicle.
A kind of electrokinetic cell is connected system control method with super capacitor, and the maximum operating voltage of super capacitor group is Vmax
And optionally greater than the ceiling voltage of power battery pack, the minimum operating voltage of super capacitor group is Vmin, super capacitor group
Pre-charge pressure is Vpc, and step is as follows：
a）Vehicle-state is detected, vehicle, which remains static, then enters step b, and vehicle is in starting state and then enters step
C, vehicle are in normally travel state and then enter step d；
b）Vehicle remains static, then control module by first voltage detection module, second voltage detection module and
Tertiary voltage detection module real-time acquisition testing power battery pack, super capacitor group and busbar voltage are simultaneously also total by CAN/LIN
Line or signal wire obtain the information state of vehicle, if the voltage of super capacitor group is less than pre-charge pressure Vpc set in advance, make
The first IGCT T1 of energy, except energy the second IGCT T2 and the 3rd IGCT T3 and closure switch S1, using preliminary filling resistance R1 to super
The charging of level capacitance group is until the voltage of super capacitor group reaches pre-charge pressure Vpc, into step e；If the voltage of super capacitor group
Not less than pre-charge pressure Vpc set in advance, then also enter step e；
c）Vehicle is in starting state, then control module by first voltage detection module, second voltage detection module and
Tertiary voltage detection module real-time acquisition testing power battery pack, super capacitor group and busbar voltage are simultaneously also total by CAN/LIN
Line or signal wire obtain the information state of vehicle, if the voltage of super capacitor group is higher than the minimum operating voltage set as Vmin,
Then except energy the first IGCT T1 and the second IGCT T2, enabled 3rd IGCT T3 simultaneously disconnects switch S1, completely using super electricity
Energy is provided separately by electric machine controller motor so as to which towing vehicle motion is up to the energy consumption of super capacitor group in appearance group
To the greatest extent so that the operating voltage of super capacitor group reaches minimum operating voltage Vmin, into step f；If the voltage of super capacitor group
Less than the minimum operating voltage Vmin of setting, then into step g；
d）Vehicle is in normally travel state, then control module detects mould by first voltage detection module, second voltage
Block and tertiary voltage detection module real-time acquisition testing power battery pack, super capacitor group and busbar voltage simultaneously also pass through CAN/
LIN buses or signal wire obtain the information state of vehicle, if there is not vehicle braking conditions or anxious accelerated condition, keep car
Normally travel；If there are vehicle braking conditions, into step h, if there is vehicle urgency accelerated condition, into step i；
e）The voltage of super capacitor group is not less than pre-charge pressure Vpc set in advance, then enables the second IGCT T2 and the
One IGCT T1 simultaneously removes the 3rd IGCT T3 of energy, disconnects switch S1, allows power battery pack to use the first IGCT with super capacitor
T1 and the second IGCT T2 carry out in parallel, allow power battery pack to be charged directly to super capacitor group, make power battery pack with it is super
Capacitance group voltage is consistent, and is terminated flow and is waited vehicle launch signal；
f）The operating voltage of super capacitor group reaches minimum operating voltage Vmin, then enables the first IGCT T1, cause mother
Line voltage is higher than the voltage of super capacitor group, allows for the 3rd IGCT T3 and is cut automatically because cathode voltage is higher than cathode voltage
Only, power battery pack is caused to make the normal row of vehicle to electric machine controller motor separately through the first IGCT T1 conveying energy
Sail, into step d；
g）Minimum operating voltage Vmin of the voltage of super capacitor group less than setting, then it is assumed that super capacitor group is uncharged,
Just enabled first IGCT T1, except energy the second IGCT T2 and the 3rd IGCT T3, closure switch S1, provided with power battery pack
Energy starts vehicle and enters normally travel and be pre-charged to super capacitor group, into step d；
h）There are braking conditions in vehicle, and due to motor by electric machine controller to bus feedback energy, busbar voltage is by height
In power battery voltage and super capacitor group voltage, the first IGCT T1 and the 3rd IGCT T3 are because cathode voltage is higher than just
Automatic cut-off is enabled the second IGCT T2, the energy of all feedbacks is all recovered in super capacitor group, directly by pole tension immediately
Terminate to braking conditions；Detect whether vehicle speed is 0 again, enter static charging process step b if vehicle speed is 0；If
Vehicle speed does not return to normal driving process step d for 0；
i）There is anxious accelerated condition in vehicle, then keeps the first IGCT T1 and the 3rd IGCT T3 to be in enabled state, by
Cause bus current big in suddenly acceleration, therefore busbar voltage will decline, when busbar voltage drops to super-capacitor voltage, the 3rd is brilliant
Brake tube T3 will be turned on so that super capacitor group and power battery pack provide energy driving vehicle simultaneously, until anxious accelerated condition knot
Beam, return to normal driving process step d.
In the step b and step e, control module detects vehicle launch signal in real time, if detecting vehicle launch signal
Then enter in step c；During normal vehicle operation, it is enabled state to keep the 3rd IGCT T3；Power in the step e
Battery pack uses the first IGCT T1 and the second IGCT T2 progress in parallel with super capacitor, the first IGCT T1 and the second brilliant lock
Equivalent to two diodes in parallel of pipe T2；When the energy of all feedbacks is all recovered in super capacitor group in the step h and remove
Can the first IGCT T1 signals but keep the 3rd IGCT T3 signals in enabled state.
In present embodiment, super capacitor is carried out by the first IGCT T1, the second IGCT T2 and the 3rd IGCT T3
The connection of group and power battery pack, control module obtain the information state of vehicle by CAN/LIN buses or signal wire, and with
Power battery voltage, super capacitor group voltage and the busbar voltage collected carries out comprehensive descision together, controls the first brilliant lock
Pipe T1, the second IGCT T2 and the 3rd IGCT T3 break-make, realize effective distribution of energy and take over seamlessly；Super capacitor group
Set with the voltage of power battery pack according to the vehicle of reality, the maximum operating voltage Vmax of super capacitor group is optionally greater than power
The ceiling voltage of battery pack, minimum operating voltage Vmin and pre-charge pressure Vpc can be according to different automobile types and different super capacitors
Group is configured.
In present embodiment, when vehicle remains static, control module gathers power battery pack, super capacitor group in real time
And busbar voltage, and whole vehicle state is obtained by bus or other signal wires, if super-capacitor voltage is less than set in advance
Pre-charge voltage Vpc, then the first IGCT T1 and closure switch S1 are enabled, super capacitor group is filled using preliminary filling resistance R1
Electricity, when reaching pre-charge pressure Vpc, enabled second IGCT T2 bypasses preliminary filling resistance R1 and charged directly to super capacitor group；
When being charged to lower state, super capacitor group is with power battery pack equivalent to use the first IGCT T1 and the second IGCT T2 two
Individual diode carries out parallel connection, two energy storage device voltages is consistent substantially；During whole charging or standing, if car
Enabling signal is effective, then charging process terminates and enters start-up course.
In present embodiment, after vehicle enters start-up course, control module will equally gather power battery pack, super in real time
Capacitance group and busbar voltage and whole vehicle state is obtained by bus or other signal wires, if super capacitor group voltage is higher than setting
Fixed minimum operating voltage Vmin, then the enabled 3rd IGCT T3 except energy the first IGCT T1 and the second IGCT T2, is used
Energy is provided separately by electric machine controller motor so as to which towing vehicle moves in super capacitor group, avoids electrokinetic cell frequent
Heavy-current discharge influences the life-span；When super capacitor group depleted of energy that is voltage close to minimum operating voltage Vmin when enable
First IGCT T1, now busbar voltage will be above super capacitor group voltage, the 3rd IGCT T3 cathode voltages are higher than positive pole electricity
Press and automatic cut-off, energy driving vehicle traveling is provided separately by power battery pack；If judge after into startup stage super
Capacitance group brownout, then it is assumed that super capacitor group is uncharged, then directly enabled first IGCT T1 is provided with power battery pack
Energy starts vehicle；Enter normal driving process after vehicle launch, during normal driving process, keep the 3rd IGCT T3
For enabled state, now the 3rd IGCT T3 cathode voltages are higher than cathode voltage, and enable signal opens the 3rd IGCT T3 also not
It can turn on.
In present embodiment, after vehicle enters normal driving process, can often occur braking or anxious accelerated condition；Work as vehicle
During braking, that is, during acceleration and deceleration, because motor by electric machine controller will be above power to bus feedback energy, busbar voltage
Battery voltage and super capacitor group voltage, the first IGCT T1 and the 3rd IGCT T3 now enable automatic cut-off immediately
Second IGCT T2, then the energy of all feedbacks be all recovered in super capacitor group, because super capacitor work(is physics energy storage, rate
Density is very high, therefore can realize efficient quick energy regenerating, and avoid electrokinetic cell because frequent large current charge and
Influence the life-span；When vehicle suddenly accelerates, because bus current is big, busbar voltage will decline, when reaching super-capacitor voltage, the
Three IGCT T3 will be turned on, and the 3rd IGCT T3 control terminal has enable signal, super capacitor group and power battery pack always
Energy driving vehicle is provided simultaneously, reduces electrokinetic cell burden and avoids the frequent heavy-current discharge of electrokinetic cell from influenceing the life-span.
In present embodiment, in normal driving process, vehicle stops then entering static charging vehicle due to braking
Process；Can also be due to returning to normal driving process after anxious accelerate.
In present embodiment, control module can use microcontroller and peripheral circuit composition to realize function so that cost
Reduce.
In present embodiment, if not high to cost requirement, low power decompression DC/DC can be used to replace switch S1 and preliminary filling
Resistance R1, for realizing the efficient, quick of super capacitor group, low-loss charging.
In present embodiment, during assistant starting, voltage can reduce lower than electrokinetic cell voltage super capacitor group
Many Vmin, concrete numerical value is set according to different automobile types difference super capacitor group, according to super capacitor group storage energy
Formula 0.5C (Vmax 2-Vmin 2) (C represents super capacitor pool-size, unit farad in formula), considerably increased by the system super
Electric capacity operating voltage range, greatly promote the energy of storage, super capacitor group made full use of, lifting vehicle launch and
Cost is also effectively reduced while energy regenerating effect；And distributed in whole energy in control process, take full advantage of list
It can control to gate level turn-off thyristor forward direction and open shut-off and the characteristic reversely ended and match somebody with somebody combination control method, realize energy
Distribution switching seamlessly transits, non-impact current, and system reliability is high.
Protection scope of the present invention includes but is not limited to embodiment of above, and protection scope of the present invention is with claims
It is defined, any replacement being readily apparent that to those skilled in the art that this technology is made, deformation, improvement each fall within the present invention's
Protection domain.
Claims (9)
1. a kind of electrokinetic cell is connected system with super capacitor, it is characterised in that：Including the first IGCT（T1）, the second IGCT
（T2）, the 3rd IGCT（T3）, first voltage detection module, second voltage detection module, tertiary voltage detection module, switch
（S1）, resistance（R1）, control module, motor, electric machine controller, the power battery pack and some super of some electrokinetic cells composition
Electric capacity composition super capacitor group, the control module connect respectively first voltage detection module, second voltage detection module and
Tertiary voltage detection module, the first voltage detection module connection power battery pack are shared in the electricity of detection power battery pack
Pressure；The second voltage detection module connection super capacitor group is used for the voltage for detecting super capacitor group；The tertiary voltage inspection
The electric machine controller for surveying module connection and motor connection is used for the voltage for detecting bus；The control module is also respectively connected to
One IGCT（T1）Gate pole, the second IGCT（T2）Gate pole and the 3rd IGCT（T3）Gate pole；First IGCT
（T1）Anode be connected to the positive pole of power battery pack, first IGCT（T1）Negative electrode be connected to switch（S1）One
End, the switch（S1）One end be also connected to the second IGCT（T2）Anode, second IGCT（T2）Anode also
It is connected to the 3rd IGCT（T3）Negative electrode, the 3rd IGCT（T3）Negative electrode be also connected to electric machine controller, it is described to open
Close（S1）The other end be connected to resistance（R1）One end, the resistance（R1）The other end be connected to the second IGCT（T2）'s
Negative electrode, the 3rd IGCT（T3）Anode be also connected to the second IGCT（T2）Negative electrode, second IGCT（T2）
Negative electrode be connected to one end of super capacitor group, the negative pole of the power battery pack is also connected to the other end of super capacitor group,
The other end of the super capacitor group is also connected to electric machine controller, and wireless module is additionally provided with the control module and is used to connect
Transmit and receive information.
2. a kind of electrokinetic cell according to claim 1 is connected system with super capacitor, it is characterised in that：The resistance
（R1）For preliminary filling resistance.
3. a kind of electrokinetic cell according to claim 1 is connected system with super capacitor, it is characterised in that：Described first is brilliant
Brake tube（T1）, the second IGCT（T2）With the 3rd IGCT（T3）All it is unidirectional gate level turn-off thyristor.
4. a kind of electrokinetic cell according to claim 1 is connected system with super capacitor, it is characterised in that：The control mould
Block also obtains the information state of vehicle by CAN/LIN buses or signal wire.
5. a kind of electrokinetic cell as claimed in claim 1 is connected the control method of system with super capacitor, it is characterised in that super
Level capacitance group maximum operating voltage for Vmax and optionally greater than power battery pack ceiling voltage, super capacitor group it is minimum
Operating voltage is Vmin, and the pre-charge pressure of super capacitor group is Vpc, and step is as follows：
a）Vehicle-state is detected, vehicle, which remains static, then enters step b, and vehicle is in starting state and then enters step c, car
Then enter step d in normally travel state；
b）Vehicle remains static, then control module passes through first voltage detection module, second voltage detection module and the 3rd
Voltage detection module real-time acquisition testing power battery pack, super capacitor group and busbar voltage and also by CAN/LIN buses or
Signal wire obtains the information state of vehicle, if the voltage of super capacitor group be less than pre-charge pressure Vpc set in advance, enabled the
One IGCT（T1）, except the second IGCT of energy（T2）With the 3rd IGCT（T3）And closure switch（S1）, use preliminary filling resistance
（R1）To super capacitor group charging until the voltage of super capacitor group reaches pre-charge pressure Vpc, into step e；If super capacitor
The voltage of group is not less than pre-charge pressure Vpc set in advance, then also enters step e；
c）Vehicle is in starting state, then control module passes through first voltage detection module, second voltage detection module and the 3rd
Voltage detection module real-time acquisition testing power battery pack, super capacitor group and busbar voltage and also by CAN/LIN buses or
Signal wire obtains the information state of vehicle, if the voltage of super capacitor group is higher than the minimum operating voltage set as Vmin, removes
Can the first IGCT（T1）With the second IGCT（T2）, enable the 3rd IGCT（T3）And disconnect switch（S1）, completely using super
Energy is provided separately by electric machine controller motor so as to which towing vehicle motion is until the energy of super capacitor group in level capacitance group
Amount exhausts so that the operating voltage of super capacitor group reaches minimum operating voltage Vmin, into step f；If super capacitor group
Voltage is less than the minimum operating voltage Vmin set, then into step g；
d）Vehicle is in normally travel state, then control module by first voltage detection module, second voltage detection module and
Tertiary voltage detection module real-time acquisition testing power battery pack, super capacitor group and busbar voltage are simultaneously also total by CAN/LIN
Line or signal wire obtain the information state of vehicle, if there is not vehicle braking conditions or anxious accelerated condition, are keeping vehicle just
Often traveling；If there are vehicle braking conditions, into step h, if there is vehicle urgency accelerated condition, into step i；
e）The voltage of super capacitor group is not less than pre-charge pressure Vpc set in advance, then enables the second IGCT（T2）With first
IGCT（T1）And except the 3rd IGCT of energy（T3）, disconnect switch（S1）, make power battery pack brilliant using first with super capacitor
Brake tube（T1）With the second IGCT（T2）Parallel connection is carried out, allows power battery pack to be charged directly to super capacitor group, makes electrokinetic cell
Group is consistent with super capacitor group voltage, is terminated flow and is waited vehicle launch signal；
f）The operating voltage of super capacitor group reaches minimum operating voltage Vmin, then enables the first IGCT（T1）, cause bus
Voltage is higher than the voltage of super capacitor group, allows for the 3rd IGCT（T3）Cut automatically because cathode voltage is higher than cathode voltage
Only, power battery pack is caused separately through the first IGCT（T1）Conveying energy makes vehicle normal to electric machine controller motor
Traveling, into step d；
g）Minimum operating voltage Vmin of the voltage of super capacitor group less than setting, then it is assumed that super capacitor group is uncharged, just makes
Can the first IGCT（T1）, except the second IGCT of energy（T2）With the 3rd IGCT（T3）, closure switch（S1）, use power battery pack
There is provided energy to start vehicle into normally travel and give super capacitor group precharge, into step d；
h）There are braking conditions in vehicle, and due to motor by electric machine controller to bus feedback energy, busbar voltage will be above moving
Power battery voltage and super capacitor group voltage, the first IGCT（T1）With the 3rd IGCT（T3）Because cathode voltage is higher than just
Automatic cut-off is enabled the second IGCT by pole tension immediately（T2）, the energy of all feedbacks is all recovered in super capacitor group,
Until braking conditions terminate；Detect whether vehicle speed is 0 again, enter static charging process step b if vehicle speed is 0；
Normal driving process step d is returned if vehicle speed is not 0；
i）There is anxious accelerated condition in vehicle, then keeps the first IGCT（T1）With the 3rd IGCT（T3）In enabled state, by
Cause bus current big in suddenly acceleration, therefore busbar voltage will decline, when busbar voltage drops to super-capacitor voltage, the 3rd is brilliant
Brake tube（T3）It will turn on so that super capacitor group and power battery pack provide energy driving vehicle simultaneously, until anxious accelerated condition
Terminate, return to normal driving process step d.
6. a kind of electrokinetic cell according to claim 5 is connected the control method of system with super capacitor, it is characterised in that：
In the step b and step e, control module detects vehicle launch signal in real time, and step is entered if vehicle launch signal is detected
In rapid c.
7. a kind of electrokinetic cell according to claim 5 is connected the control method of system with super capacitor, it is characterised in that：
During normal vehicle operation, the 3rd IGCT is kept（T3）For enabled state.
8. a kind of electrokinetic cell according to claim 5 is connected the control method of system with super capacitor, it is characterised in that：
Power battery pack uses the first IGCT with super capacitor in the step e（T1）With the second IGCT（T2）Parallel connection is carried out, the
One IGCT（T1）With the second IGCT（T2）Equivalent to two diodes in parallel.
9. a kind of electrokinetic cell according to claim 5 is connected the control method of system with super capacitor, it is characterised in that：
When the energy of all feedbacks is all recovered in super capacitor group in the step h and except the first IGCT of energy（T1）Signal but holding
3rd IGCT（T3）Signal is in enabled state.
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Families Citing this family (9)
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| CN107226080B (en) * | 2017-05-04 | 2019-11-05 | 江苏大学 | The control method of hybrid power system in short-term based on super capacitor and starting motor of automobile |
| CN107482744A (en) * | 2017-07-06 | 2017-12-15 | 浙江大学 | Life protection device for power source for forklift |
| CN111347924B (en) * | 2018-12-21 | 2022-09-09 | 比亚迪股份有限公司 | Motor control circuit, vehicle, heating method and charging and discharging method |
| CN109861360A (en) * | 2019-01-02 | 2019-06-07 | 山东爱特机电技术有限责任公司 | A kind of speed regulation potential energy load energy-saving control circuit |
| CN110065392B (en) * | 2019-03-26 | 2022-11-15 | 天津三电汽车空调有限公司 | High-voltage pre-charging module with contactor anti-adhesion function |
| CN111048854A (en) * | 2019-12-16 | 2020-04-21 | 安徽绿沃循环能源科技有限公司 | Large-current starting circuit and energy storage system of power battery |
| CN111204225B (en) * | 2020-01-16 | 2021-10-22 | 宁波市江北九方和荣电气有限公司 | Locomotive capacitor on-line detection and monitoring device |
| CN113178934A (en) * | 2021-06-03 | 2021-07-27 | 吉林大学 | Integrated low-voltage energy storage power supply system for vehicle and control method thereof |
| CN113733936B (en) * | 2021-08-18 | 2023-05-23 | 中车唐山机车车辆有限公司 | Power control method and device for hybrid drive tramcar and storage medium |
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