CN107914585A - Power system of electric automobile and control method, system, controller based on super capacitor - Google Patents
Power system of electric automobile and control method, system, controller based on super capacitor Download PDFInfo
- Publication number
- CN107914585A CN107914585A CN201711175789.4A CN201711175789A CN107914585A CN 107914585 A CN107914585 A CN 107914585A CN 201711175789 A CN201711175789 A CN 201711175789A CN 107914585 A CN107914585 A CN 107914585A
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- China
- Prior art keywords
- super capacitor
- electric automobile
- motor
- electric
- power
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/10—Dynamic electric regenerative braking
-
- 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 present invention provides a kind of power system of electric automobile and control method, system, controller based on super capacitor, and the electric automobile includes super capacitor and motor；The power system of electric automobile control method comprises the following steps：The super capacitor is controlled to discharge to the motor when the electric automobile starts or power is less than the first predetermined threshold value；The super capacitor is controlled to store the electric energy of the motor generation in the electric vehicle brake.The power system of electric automobile based on super capacitor and control method, system, controller of the present invention provides instantaneous peak value discharge and recharge service by super capacitor for electric automobile, capacity usage ratio is improved, extends the service life of power system of electric automobile and electric automobile.
Description
Technical field
The present invention relates to the technical field of electric automobile, more particularly to a kind of electric powered motor based on super capacitor
System and control method, system, controller.
Background technology
In the process of moving, vehicle continually can be started and braked according to road conditions.For electric automobile, quickly
Larger driving current is needed when starting with significant power demand, so as to have higher requirement to the dynamical system of electric automobile.
In the prior art, distributed generally according to moment of torsion, pass through entire car controller (VCU), battery management system (BMS) and hair
Motivation electronic control unit (ECU) carries out combined calibrating, adjusts engine and motor speed so that engine is operated in economic zone
Domain.
However, the above method has following deficiency：
(1) damage of the high current fluctuation to battery pack can not be avoided；
(2) capacity usage ratio is low；
(3) requirement of high-energy-density and transient high power density can not be taken into account at the same time.
The content of the invention
In view of the foregoing deficiencies of prior art, it is an object of the invention to provide a kind of based on the electronic of super capacitor
Automobile dynamic system and control method, system, controller, provide instantaneous peak value discharge and recharge for electric automobile by super capacitor and take
Business, improves capacity usage ratio, extends the service life of power system of electric automobile and electric automobile.
In order to achieve the above objects and other related objects, the present invention provides a kind of electric powered motor based on super capacitor
Control method, the electric automobile include super capacitor and motor；The power system of electric automobile control method includes following
Step：The super capacitor is controlled to be put to the motor when the electric automobile starts or power is less than the first predetermined threshold value
Electricity；The super capacitor is controlled to store the electric energy of the motor generation in the electric vehicle brake.
In one embodiment of the invention, when the front wheel torque of the electric automobile is more than the second predetermined threshold value, institute is controlled
Super capacitor is stated to discharge to the wheel hub motor of the electric automobile trailing wheel.
Accordingly, the present invention provides a kind of electric automobile motive power control system based on super capacitor, the electric automobile
Including super capacitor and motor；The power system of electric automobile control system includes the first control module and the second control mould
Block；
First control module is used to control institute when the electric automobile starts or power is less than the first predetermined threshold value
Super capacitor is stated to discharge to the motor；
Second control module is used to control the super capacitor to store the motor in the electric vehicle brake
The electric energy of generation.
In one embodiment of the invention, the 3rd control module is further included, it is big for the front wheel torque in the electric automobile
When the second predetermined threshold value, the super capacitor is controlled to discharge to the wheel hub motor of the electric automobile trailing wheel.
The present invention provides a kind of controller, including processor and memory；
The memory is used to store computer program；
The processor is used for the computer program for performing the memory storage, so that controller execution is above-mentioned
Electric powered motor control method based on super capacitor.
Finally, the present invention provides a kind of power system of electric automobile based on super capacitor, including above-mentioned controller and
Super capacitor.
In one embodiment of the invention, the super capacitor uses graphene super capacitor.
In one embodiment of the invention, battery component is further included, it is pre- less than the 3rd for the electricity in the super capacitor
If during threshold value, power under the control of the controller to the engine of the electric automobile, to make the super capacitor store
The electric energy of the engine generation.
In one embodiment of the invention, the battery component includes fuel cell and chemical cell.
In one embodiment of the invention, distance increasing unit is further included, for being supplied under the control of the controller to the motor
Electricity.
As described above, power system of electric automobile based on super capacitor and control method, system, the control of the present invention
Device, has the advantages that：
(1) it can be provided when vehicle quickly starts with significant power demand compared with large-drive-current, reduce oil consumption and endless
The disposal of pollutants burnt entirely；
(2) damage of the high current fluctuation to battery pack is avoided, extends the service life of battery pack；
(3) in damped condition, charged based on high current, realize the rapid conversion to recover energy, effectively change
It has been apt to the organic efficiency of braking energy；
(4) instantaneous peak value discharge and recharge service is provided for electric automobile by super capacitor, improves capacity usage ratio, extended
The service life of power system of electric automobile, Er Qie Minus have lacked the number of starts of engine, have protected vehicle miscellaneous part.
Brief description of the drawings
Fig. 1 is shown as flow of the electric powered motor control method in an embodiment based on super capacitor of the present invention
Figure；
Fig. 2 is shown as the structure based on the electric automobile motive power control system of super capacitor in an embodiment of the present invention
Schematic diagram；
Fig. 3 is shown as structure diagram of the controller of the present invention in an embodiment；
Fig. 4 is shown as the structural representation based on the power system of electric automobile of super capacitor in an embodiment of the present invention
Figure；
The structure based on the power system of electric automobile of super capacitor in another embodiment that Fig. 5 is shown as the present invention is shown
It is intended to；
The structure based on the power system of electric automobile of super capacitor in another embodiment that Fig. 6 is shown as the present invention is shown
It is intended to.
Component label instructions
21 first control modules
22 second control modules
31 processors
32 memories
41 controllers
42 super capacitors
43 battery components
44 distance increasing units
Embodiment
Illustrate embodiments of the present invention below by way of specific instantiation, those skilled in the art can be by this specification
Disclosed content understands other advantages and effect of the present invention easily.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also be based on different viewpoints with application, without departing from
Various modifications or alterations are carried out under the spirit of the present invention.
It should be noted that the diagram provided in the present embodiment only illustrates the basic conception of the present invention in a schematic way,
Then in schema only display with it is of the invention in related component rather than component count, shape and size during according to actual implementation paint
System, kenel, quantity and the ratio of each component can be a kind of random change during its actual implementation, and its assembly layout kenel also may be used
Can be increasingly complex.
The power system of electric automobile based on super capacitor and control method, system, controller of the present invention passes through super
Capacitance provides instantaneous peak value discharge and recharge service for electric automobile, can take into account high-energy-density and transient high power density at the same time
It is required that improving capacity usage ratio, the service life of power system of electric automobile and electric automobile is extended.
As shown in Figure 1, in an embodiment, the electric powered motor control method application of the invention based on super capacitor
In on electric automobile.The electric automobile includes super capacitor and motor.
Specifically, the power system of electric automobile control method comprises the following steps：
Step S1, the super capacitor is controlled to institute when the electric automobile starts or power is less than the first predetermined threshold value
State motor electric discharge.
Specifically, when electric automobile starts, super capacitor output stable DC stream, and will by DC/AC conversions
Alternating current is provided to motor, to start motor work；When the power of electric automobile is less than the first predetermined threshold value, super capacitor is defeated
Go out stable DC stream, and changed by DC/AC and alternating current is provided to motor, so that motor works, so as to add car
Power.For example, control super capacitor to power for motor, it is necessary to during more power when vehicle driving up, so as to be electronic
The engine of automobile provides power-assisted.
Step S2, the super capacitor is controlled to store the electric energy of the motor generation in the electric vehicle brake.
Specifically, when electric vehicle brake, motor is in power generation mode, the electric energy generated be transferred to super capacitor into
Row storage.For example, in electric automobile descending, motor is in on-position, therefore controls the electricity of super capacitor storage motor generation
Energy.
In one embodiment of the invention, when the front wheel torque of the electric automobile is more than the second predetermined threshold value, institute is controlled
Super capacitor is stated to discharge to the wheel hub motor of the electric automobile trailing wheel.
Specifically, when considering polling power controlling, super capacitor can be supplied directly to the wheel hub motor of electric automobile trailing wheel
Electricity, to increase its output torque, prevents that moment of torsion that engine is transported to front-wheel is excessive and makes electric automobile direction out of control.Need
Bright, the excessive moment of torsion of engine output can be also converted into electric energy by generator, and be fed on the wheel hub motor of trailing wheel.When
When electric automobile is in on-position, wheel hub motor can also generate electric energy and charge to super capacitor.
As shown in Fig. 2, in an embodiment, the electric automobile motive power control system of the invention based on super capacitor includes
First control module 21 and the second control module 22.
First control module 21 is used for when the electric automobile starts or power is less than the first predetermined threshold value described in control
Super capacitor discharges to the motor.
Specifically, when electric automobile starts, super capacitor output stable DC stream, and will by DC/AC conversions
Alternating current is provided to motor, to start motor work；When the power of electric automobile is less than the first predetermined threshold value, super capacitor is defeated
Go out stable DC stream, and changed by DC/AC and alternating current is provided to motor, so that motor works, so as to add car
Power.For example, control super capacitor to power for motor, it is necessary to during more power when vehicle driving up, so as to be electronic
The engine of automobile provides power-assisted.
Second control module 22 is used to control the super capacitor to store the motor life in the electric vehicle brake
Into electric energy.
Specifically, when electric vehicle brake, motor is in power generation mode, the electric energy generated be transferred to super capacitor into
Row storage.For example, in electric automobile descending, motor is in on-position, therefore controls the electricity of super capacitor storage motor generation
Energy.
In one embodiment of the invention, the 3rd control module is further included, it is big for the front wheel torque in the electric automobile
When the second predetermined threshold value, the super capacitor is controlled to discharge to the wheel hub motor of the electric automobile trailing wheel.
Specifically, when considering polling power controlling, super capacitor can be supplied directly to the wheel hub motor of electric automobile trailing wheel
Electricity, to increase its output torque, prevents that moment of torsion that engine is transported to front-wheel is excessive and makes electric automobile direction out of control.Need
Bright, the excessive moment of torsion of engine output can be also converted into electric energy by generator, and be fed on the wheel hub motor of trailing wheel.When
When electric automobile is in on-position, wheel hub motor can also generate electric energy and charge to super capacitor.
As shown in figure 3, in an embodiment, controller of the invention includes processor 31 and memory 32.
The memory 32 is used to store computer program.
Preferably, the memory 32 includes：ROM, RAM, magnetic disc or CD etc. are various can be with store program codes
Medium.
The processor 31 is connected with the memory 32, the computer program stored for performing the memory 32,
So that the controller performs the above-mentioned electric powered motor control method based on super capacitor.
Preferably, processor 31 can be general processor, including central processing unit (CentralProcessingUnit,
Abbreviation CPU), network processing unit (NetworkProcessor, abbreviation NP) etc.；It can also be digital signal processor
(DigitalSignalProcessing, abbreviation DSP), application-specific integrated circuit
(ApplicationSpecificIntegratedCircuit, abbreviation ASIC), field programmable gate array (Field-
ProgrammableGateArray, abbreviation FPGA) either other programmable logic device, discrete gate or transistor logic device
Part, discrete hardware components.
As shown in figure 4, in an embodiment, the power system of electric automobile of the invention based on super capacitor includes above-mentioned
Controller 41 and the super capacitor 42 that is connected with controller 41.
Super capacitor also known as electrochemical capacitor, double layer capacitor, gold capacitance, farad capacitor, are to pass through polarized electrolytic
Matter carrys out a kind of electrochemical element of energy storage.Different from traditional electrochmical power source, super capacitor be it is a kind of between traditional capacitor with
Power supply between battery, with property, relies primarily on electric double layer and redox fake capacitance electric charge storage electric energy；But at it
The process of energy storage does not chemically react, and this thermal energy storage process is reversible, also just because of this ultracapacitor can be repeatedly
Hundreds thousand of times of discharge and recharge.Specifically, super capacitor has the following advantages：
(1) there are very fast charge/discharge rates, instantaneous peak value charge and discharge electric load can be undertaken；
(2) there is outstanding physical characteristic, its efficiency for charge-discharge is 99% or so, and cycle-index is up to hundreds thousand of times；
(3) large current discharging capability is superpower, and energy conversion efficiency is high, and process losses are small, and high current energy circulation efficiency >=
90%；Power density is high, up to 300W/kg~5000W/kg, equivalent to the decades of times of common batteries.
In one embodiment of the invention, the super capacitor uses graphene super capacitor.Graphene ultracapacitor is
The general designation of ultracapacitor based on grapheme material.Since the two-dimensional structure of graphene uniqueness and outstanding intrinsic physics are special
Property, such as abnormal high electric conductivity and high surface area, application of the graphene-based material in ultracapacitor have greatly latent
Power.Graphene-based material is compared with traditional electrode material, during energy storage and release, it is shown that some are novel
Feature and mechanism.Therefore, graphene super capacitor fully meets the electric powered motor demand of the present invention.
As shown in figure 5, in another embodiment of the present invention, the power system of electric automobile of the invention based on super capacitor
Battery component 43 is further included, is connected with controller 41, for when the electricity of the super capacitor is less than three predetermined threshold values,
Power to the engine of the electric automobile under the control of the controller, given birth to making the super capacitor store the engine
Into electric energy.Specifically, when the electricity of super capacitor is less than three predetermined threshold values, engine of the battery component to electric automobile
Power supply, engine high-efficiency operating power generation, storage is into super capacitor after the electric energy generated is changed by DC/AC, so as to be super
Level capacitance supplement electricity.
In one embodiment of the invention, the battery component includes fuel cell and chemical cell.
As shown in fig. 6, in further embodiment of this invention, the power system of electric automobile of the invention based on super capacitor
Distance increasing unit 44 is further included, is connected with controller 41, for powering under the control of the controller to the motor.Distance increasing unit one
As refer to that extra electric energy is provided and causes vehicle to exercise more remote parts.In the present invention, in super electricity
In the case that the electricity of appearance exhausts, distance increasing unit carries out electric energy supply using other energy (such as gasoline, diesel oil).Need what is illustrated
It is that in most cases, electric automobile is powered using super capacitor, and electric automobile is powered using distance increasing unit under a few cases.Together
When, distance increasing unit, which produces electricl energy, can also store to super capacitor.
In conclusion the power system of electric automobile and control method, system, controller based on super capacitor of the present invention
It can be provided when vehicle quickly starts with significant power demand compared with large-drive-current, reduce oil consumption and unburnt pollution
Discharge；Damage of the high current fluctuation to battery pack is avoided, extends the service life of battery pack；In damped condition, base
Charge in high current, realize the rapid conversion to recover energy, effectively improve the organic efficiency of braking energy；Pass through
Super capacitor provides instantaneous peak value discharge and recharge service for electric automobile, improves capacity usage ratio, extends electric powered motor
The service life of system, Er Qie Minus have lacked the number of starts of engine, have protected vehicle miscellaneous part.So the present invention is effectively
Overcome various shortcoming of the prior art and have high industrial utilization.
The above-described embodiments merely illustrate the principles and effects of the present invention, not for the limitation present invention.It is any ripe
Know the personage of this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete without departing from disclosed spirit and institute under technological thought such as
Into all equivalent modifications or change, should by the present invention claim be covered.
Claims (10)
- A kind of 1. electric powered motor control method based on super capacitor, it is characterised in that：The electric automobile includes super Capacitance and motor；The power system of electric automobile control method comprises the following steps：The super capacitor is controlled to discharge to the motor when the electric automobile starts or power is less than the first predetermined threshold value；The super capacitor is controlled to store the electric energy of the motor generation in the electric vehicle brake.
- 2. the electric powered motor control method according to claim 1 based on super capacitor, it is characterised in that：When described When the front wheel torque of electric automobile is more than the second predetermined threshold value, the super capacitor is controlled to the wheel hub of the electric automobile trailing wheel Motor discharges.
- A kind of 3. electric automobile motive power control system based on super capacitor, it is characterised in that：The electric automobile includes super Capacitance and motor；The power system of electric automobile control system includes the first control module and the second control module；First control module is used to control when the electric automobile starts or power is less than the first predetermined threshold value described super Level capacitance discharges to the motor；Second control module is used to control the super capacitor to store the motor generation in the electric vehicle brake Electric energy.
- 4. the electric automobile motive power control system according to claim 3 based on super capacitor, it is characterised in that：Further include 3rd control module, for when the front wheel torque of the electric automobile is more than the second predetermined threshold value, controlling the super capacitor Discharge to the wheel hub motor of the electric automobile trailing wheel.
- A kind of 5. controller, it is characterised in that：Including processor and memory；The memory is used to store computer program；The processor is used for the computer program for performing the memory storage, so that controller perform claim requirement 1 To the electric powered motor control method based on super capacitor any one of 2.
- A kind of 6. power system of electric automobile based on super capacitor, it is characterised in that：Including the controller described in claim 5 And super capacitor.
- 7. the power system of electric automobile according to claim 6 based on super capacitor, it is characterised in that：The super electricity Appearance uses graphene super capacitor.
- 8. the power system of electric automobile according to claim 6 based on super capacitor, it is characterised in that：Further include battery Component, for when the electricity of the super capacitor is less than three predetermined threshold values, to the electricity under the control of the controller The engine power supply of electrical automobile, to make the super capacitor store the electric energy of the engine generation.
- 9. the power system of electric automobile according to claim 8 based on super capacitor, it is characterised in that：The battery pack Part includes fuel cell and chemical cell.
- 10. the power system of electric automobile according to claim 6 based on super capacitor, it is characterised in that：Further include increasing Journey device, for powering under the control of the controller to the motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711175789.4A CN107914585A (en) | 2017-11-22 | 2017-11-22 | Power system of electric automobile and control method, system, controller based on super capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711175789.4A CN107914585A (en) | 2017-11-22 | 2017-11-22 | Power system of electric automobile and control method, system, controller based on super capacitor |
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|---|---|
| CN107914585A true CN107914585A (en) | 2018-04-17 |
Family
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| CN201711175789.4A Pending CN107914585A (en) | 2017-11-22 | 2017-11-22 | Power system of electric automobile and control method, system, controller based on super capacitor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111890953A (en) * | 2020-08-06 | 2020-11-06 | 赵昕 | Intelligent super-type electric automobile |
| CN112140909A (en) * | 2020-11-30 | 2020-12-29 | 宁波洁程汽车科技有限公司 | Composite energy management system applied to extended range vehicle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111890953A (en) * | 2020-08-06 | 2020-11-06 | 赵昕 | Intelligent super-type electric automobile |
| CN112140909A (en) * | 2020-11-30 | 2020-12-29 | 宁波洁程汽车科技有限公司 | Composite energy management system applied to extended range vehicle |
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| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 334000 Xingyuan West Avenue, Shangrao economic and Technological Development Zone, Shangrao, Jiangxi, China Applicant after: AIWAYS AUTOMOBILE Co.,Ltd. Address before: 334000 Xingyuan West Avenue, Shangrao economic and Technological Development Zone, Shangrao, Jiangxi, China Applicant before: JIANGXI AICHI YIWEI INDUSTRIAL CO.,LTD. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180417 |