CN106347139A - Composite power supply regeneration braking device applied to pure electric vehicles - Google Patents
Composite power supply regeneration braking device applied to pure electric vehicles Download PDFInfo
- Publication number
- CN106347139A CN106347139A CN201610989385.8A CN201610989385A CN106347139A CN 106347139 A CN106347139 A CN 106347139A CN 201610989385 A CN201610989385 A CN 201610989385A CN 106347139 A CN106347139 A CN 106347139A
- Authority
- CN
- China
- Prior art keywords
- composite power
- power source
- power supply
- super capacitor
- braking device
- Prior art date
- 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.)
- Pending
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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
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/10—Dynamic electric regenerative braking
-
- 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
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
-
- 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
- B60L7/18—Controlling the braking effect
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer 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
- Y02T10/72—Electric energy management in electromobility
-
- 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
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a composite power supply regeneration braking device applied to pure electric vehicles and belongs to the technical field of composite power supplies of pure electric vehicles. In a system of the composite power supply regeneration braking device, the input end of a voltage/current detection circuit is connected to a storage battery and a super capacitor; the output end of the voltage/current detection circuit is connected to a composite power supply regeneration braking system; the composite power supply regeneration braking system is connected to a fuzzy control module, a vehicle state detection module, a motor braking system, a hydraulic braking system, a super capacitor and a bidirectional DC/DC converter; the storage battery is connected to the super capacitor and a motor controller via the bidirectional DC/DC converter; the motor controller is connected to a motor. Through the composite power supply regeneration braking device applied to pure electric vehicles, the problems that the energy supply of the power supply is insufficient, the service life of the storage battery is short and the system energy recovery of the motor braking system is low when the vehicles are braked can be solved; the composite power supply regeneration braking device also has the characteristics of intellectualization and high safety coefficient.
Description
Technical field:
The invention belongs to pure electric automobile composite power source technical field and in particular to a kind of pure electric automobile composite power source again
Raw brake unit.
Background technology:
The power supply of existing market pure electric automobile has two kinds of main Types, and the first kind is using accumulator as single power supply,
Equations of The Second Kind is to be combined as composite power source using accumulator and super capacitor and two-way dc/dc changer.Single power supply is because being subject to
Distance travelled is short, charging is difficult and the restriction of the low factor of service lifetime of accumulator, therefore composite power source regeneration brake system
Receive significant attention.The advantages such as the specific power height of super capacitor, rapid large-current discharge and recharge and accumulator are compared energy by composite power source
Measure high Dominant Facies to combine, the power demand of shared pure electric automobile.Composite power source regeneration brake system can be by vehicle
The part energy producing when braking during traveling is converted into power storage in energy storage device, to prolongation VMT Vehicle-Miles of Travel
And it is significant with the economic performance improving vehicle to make full use of the energy.
Content of the invention:
It is an object of the invention to it is short to solve power supply energy supply deficiency, service lifetime of accumulator in pure electric automobile running
And motor braking service system energy regenerating low problem during vehicle braking.
A kind of present invention pure electric automobile composite power source regenerative braking device, including voltage/current detection circuit, compound electric
Source regeneration brake system, accumulator, super capacitor, two-way dc/dc changer, brake fluid system, electric machine controller and motor,
The input of described voltage/current detection circuit connects accumulator and super capacitor, voltage/current detection circuit
Outfan connects composite power source regeneration brake system；
Described composite power source regeneration brake system connects fuzzy control model, vehicle condition detection module, motor system respectively
Dynamic system, brake fluid system, super capacitor and two-way dc/dc changer；
Described accumulator is connected with super capacitor and electric machine controller through two-way dc/dc changer, and electric machine controller connects
Motor.
As a further improvement on the present invention, described motor connects composite power source regenerative braking system by information acquisition module
System.Information acquisition module monitoring electric machine operation state provides instant data for composite power source regeneration brake system.
As a further improvement on the present invention, described composite power source regeneration brake system connection status display circuit.State
Display circuit can show accumulator or super capacitor battery condition, points out driver vehicle's power conditions.
As a further improvement on the present invention, described composite power source regeneration brake system connects protection circuit, protection circuit
Connect two-way dc/dc changer.Protection circuit is always to two-way dc/dc converter output terminal collection voltages signal and it is electric
Pressure is contrasted with reference voltage, and when voltage is higher than reference voltage, two-way dc/dc changer quits work, and accumulator is carried out
Protection.
The invention has the benefit that
The voltage/current detection circuit moment carries out electric power detection, vehicle condition detection module to accumulator and super capacitor
Moment detects vehicle demand power, jointly provides instant data for composite power source regeneration brake system.Vehicle condition detection module
Required brake force during detection vehicle braking, and provide instant data for total braking force distribution system.Accumulator and two-way dc/
It is electrical machine with power jointly that the series connection of dc changer composes in parallel composite power source again with super capacitor.Due to super capacitor directly with
Dc bus connects, and the high power charging-discharging stream major part on dc bus flows directly into/flow out super capacitor, it is possible to reduce big
The impact to accumulator for the electric current, meanwhile, super capacitor can be with fast charging and discharging, and convenient offer is required when accelerating and starting
Momentary high power quick absorption and regeneration braking energy, improve the work efficiency of super capacitor further.In vehicle operation
In, high current cannot be provided when the electricity of super capacitor is low, accumulator can be charged to super capacitor by two-way dc/dc, makes
Super capacitor can to vehicle accelerating, climbing when, demand provide high-power when high-power, meet the driving requirements of vehicle.
When accumulator electric-quantity is too low, when super capacitor electricity is very high, super capacitor is charged a battery by two-way dc/dc changer,
Ensure that vehicle can be with normally travel.
Brief description:
Fig. 1 is the principle schematic of pure electric automobile composite power source regenerative braking device；
Fig. 2 is voltage detecting circuit；
Fig. 3 is current detection circuit；
Fig. 4 is protection circuit；
Fig. 5 is composite power source regeneration brake system workflow diagram.
Specific embodiment:
Below in conjunction with accompanying drawing, the invention will be further described
Referring to a kind of pure electric automobile composite power source regenerative braking device of Fig. 1 present invention, including voltage/current detection electricity
Road 1, composite power source regeneration brake system 8, accumulator 4, super capacitor 5, two-way dc/dc changer 10, brake fluid system 11,
Electric machine controller 12 and motor 14, the input of described voltage/current detection circuit 1 connects accumulator 4 and super capacitor 5, electricity
The outfan of pressure/current detection circuit 1 connects composite power source regeneration brake system 8,8 points of described composite power source regeneration brake system
Lian Jie not fuzzy control model 2, vehicle condition detection module 7, motor braking system 3, brake fluid system 11, super capacitor 5
With two-way dc/dc changer 10, described accumulator 4 is through two-way dc/dc changer 10 and super capacitor 5 and electric machine controller 12 company
Connect, electric machine controller 12 connects motor 14, described motor 14 connects composite power source regenerative braking system by information acquisition module 13
System 8, described composite power source regeneration brake system 8 connection status display circuit 6, described composite power source regeneration brake system 8 connects
Protection circuit 9, protection circuit 9 connects two-way dc/dc changer 10.
Referring to the drawings 2, voltage detecting circuit is gone here and there with operational amplifier lmh6643ma by Hall voltage sensor vsm025a
Joint group becomes, and Hall voltage sensor has good precision and the linearity.
Referring to the drawings 3, current detection circuit is to be composed in series by two lm324 amplifier chips, and ultimate principle is adopted when input
During sample electric current, be converted to voltage through resistance, then make comparisons with given reference voltage after operational amplifier amplification, if it exceeds
Given reference voltage, then export a high level, conversely, then exporting a low level.Lm324 amplifier chip is a general
Integrated four road operational amplifiers, major advantage is exactly that with low cost, cost performance is high.
Referring to the drawings 4, protection circuit is formed with hcpl4504 chip-in series by two lm319n comparator parallel connections again, protection
Circuit plays buffer action to input, the output signal of telecommunication.
Referring to the drawings 5, whole device and each module initialization, first determine whether whether motor works, such as do not work at the beginning of return
Beginningization, such as work then enter next step and judge whether vehicle stops working；Stop working in this way and just enter to terminate；As otherwise system enters next
Step judges that vehicle needs whether power is more than zero；1. enter to implement fuzzy control strategy 1 entrance next step in this way and judge compound electric
Whether source electricity meets power demand, returns in this way and continues to judge whether vehicle stops working, such as otherwise system finishing, 2. such as otherwise enters
Enter to implement fuzzy control strategy 2 and travel further into judge whether composite power source electricity is full of, such as otherwise return and continue to judge vehicle
Whether flame-out module, enters next step in this way and stops providing electric energy to composite power source and returning and judge whether vehicle extinguishes.
There is the corresponding control strategy of the situation being likely to be encountered in pure electric automobile running in fuzzy control model,
The protection content of control strategy non-invention, the present invention is only to provide carrier for control strategy.Fuzzy control model: vehicle
When motor is in motoring condition, composite power source regeneration brake system can power according to needed for vehicle and accumulator and super electricity
The battery condition held is transferred control strategy from fuzzy control model and demand power is allocated；The motor of vehicle is in generating
During state, motor braking system and brake fluid system provide brake force for vehicle jointly, meanwhile, composite power source regeneration system
Dynamic system the total braking force size according to needed for vehicle can be transferred control strategy total braking force carried out from fuzzy control model
The energy producing when distributing and vehicle regenerative being braked is allocated.
Claims (4)
1. a kind of pure electric automobile composite power source regenerative braking device, including voltage/current detection circuit (1), composite power source again
Raw brakes (8), accumulator (4), super capacitor (5), two-way dc/dc changer (10), brake fluid system (11), motor
Controller (12) and motor (14) it is characterised in that:
The input of described voltage/current detection circuit (1) connects accumulator (4) and super capacitor (5), voltage/current detection
The outfan of circuit (1) connects composite power source regeneration brake system (8)；
Described composite power source regeneration brake system (8) connects fuzzy control model (2), vehicle condition detection module (7), electricity respectively
Brake system (3), brake fluid system (11), super capacitor (5) and two-way dc/dc changer (10)；
Described accumulator (4) is connected with super capacitor (5) and electric machine controller (12) through two-way dc/dc changer (10), motor
Controller (12) connects motor (14).
2. a kind of pure electric automobile composite power source regenerative braking device according to jurisdictions mandate 1 it is characterised in that: described electricity
Machine (14) connects composite power source regeneration brake system (8) by information acquisition module (13).
3. a kind of pure electric automobile composite power source regenerative braking device according to jurisdictions mandate 1 or 2 it is characterised in that: institute
State composite power source regeneration brake system (8) connection status display circuit (6).
4. a kind of pure electric automobile composite power source regenerative braking device according to jurisdictions mandate 3 it is characterised in that: described multiple
Close power supply regenerative brakes (8) and connect protection circuit (9), protection circuit (9) connects two-way dc/dc changer (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610989385.8A CN106347139A (en) | 2016-11-10 | 2016-11-10 | Composite power supply regeneration braking device applied to pure electric vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610989385.8A CN106347139A (en) | 2016-11-10 | 2016-11-10 | Composite power supply regeneration braking device applied to pure electric vehicles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106347139A true CN106347139A (en) | 2017-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610989385.8A Pending CN106347139A (en) | 2016-11-10 | 2016-11-10 | Composite power supply regeneration braking device applied to pure electric vehicles |
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| Country | Link |
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| CN (1) | CN106347139A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018176728A1 (en) * | 2017-04-01 | 2018-10-04 | 苏州汇川联合动力系统有限公司 | Energy feedback protection method and system for synchronous electric motor |
| CN109866622A (en) * | 2019-03-26 | 2019-06-11 | 西安电子科技大学芜湖研究院 | A kind of efficient energy recovery system based on quick charging battery |
| WO2020067947A1 (en) * | 2018-09-28 | 2020-04-02 | Scania Cv Ab | Power supply arrangement with separated power links and method |
| CN113120139A (en) * | 2021-05-21 | 2021-07-16 | 北京骑胜科技有限公司 | Power supply system, control method and device thereof and electric vehicle |
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2016
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018176728A1 (en) * | 2017-04-01 | 2018-10-04 | 苏州汇川联合动力系统有限公司 | Energy feedback protection method and system for synchronous electric motor |
| WO2020067947A1 (en) * | 2018-09-28 | 2020-04-02 | Scania Cv Ab | Power supply arrangement with separated power links and method |
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| CN113120139A (en) * | 2021-05-21 | 2021-07-16 | 北京骑胜科技有限公司 | Power supply system, control method and device thereof and electric vehicle |
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Application publication date: 20170125 |