CN106143191A - A kind of power supply on vehicle system - Google Patents
A kind of power supply on vehicle system Download PDFInfo
- Publication number
- CN106143191A CN106143191A CN201610537918.9A CN201610537918A CN106143191A CN 106143191 A CN106143191 A CN 106143191A CN 201610537918 A CN201610537918 A CN 201610537918A CN 106143191 A CN106143191 A CN 106143191A
- Authority
- CN
- China
- Prior art keywords
- power supply
- power source
- unit
- outfan
- transducer
- 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
Links
- 230000005611 electricity Effects 0.000 claims description 11
- 238000004146 energy storage Methods 0.000 claims description 10
- 230000036772 blood pressure Effects 0.000 claims 3
- 238000003869 coulometry Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 5
- 230000007812 deficiency Effects 0.000 description 4
- 230000001427 coherent effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/40—Electric propulsion with power supplied within the vehicle using propulsion power supplied by capacitors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2210/00—Converter types
- B60L2210/10—DC to DC converters
- B60L2210/12—Buck converters
-
- 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
- B60L2210/00—Converter types
- B60L2210/10—DC to DC converters
- B60L2210/14—Boost converters
-
- 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
- Y02T10/72—Electric energy management in electromobility
Landscapes
- 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 provides a kind of power supply on vehicle system, it include for electric motor car provide power source main power source and and auxiliary main power source to electric motor car provide power source accessory power supply, described power supply on vehicle system also includes DC/DC transducer, and described accessory power supply is connected with this main power source by this DC/DC transducer.This power supply on vehicle system has that power density is big, length in service life, the advantage such as with low cost.
Description
Technical field
The present invention relates to a kind of power supply in order to provide power source to electric motor car, especially a kind of for electrical salf-walking
The electric vehicles such as car, electri forklift and electric bus provide the power-supply system of power source.
Background technology
In recent years, day by day exhausted along with petroleum resources, atmospheric pollution is increasingly severe, electric motor car is inexpensive with it, convenient,
The functionality advantage of environmental protection, is increasingly favored by consumer in Chinese market；Relatively conventional electric motor car is typically with can
Rechargeable battery is as energy source, by the parts such as controller, motor, converts electrical energy into mechanical energy motion and makes vehicle transport
Dynamic.
Due to rechargeable battery self-characteristic, its power density ratio is relatively low, determines rechargeable battery big as power source
Rate charge-discharge Performance comparision is poor；Electric motor car in use, such as start, accelerate or climb time, in order to electric motor car
Providing bigger instantaneous power, rechargeable battery certainly will will carry out big multiplying power discharging, but the biggest multiplying power discharging cause can
Rechargeable battery life time decay is very fast, thus has had a strong impact on the service life of electric motor car.
In order to overcome the above-mentioned technological deficiency of above-mentioned rechargeable battery, research worker the most repeatedly attempt using ultracapacitor as
Emergency power supply, although ultracapacitor is as the environmental protection energy of a kind of rising in recent years, and it has high rate charge-discharge
Preferably can be especially suitable for using, fill side electricity frequently occasion big in instantaneous power, but how to make rechargeable battery and super capacitor
Reasonably combine between device, ultracapacitor and rechargeable battery just can be made to perform in performance most preferably, and cost is
For cheap, always research staff and a major issue paying close attention to.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of power supply on vehicle system, and this power supply on vehicle system not only solves
Conventional electric car power source causes the technical problem of severe life time reduction, and simple in construction because of high power discharge, with low cost.
For solving above-mentioned technical problem, the invention provides a kind of power supply on vehicle system, it includes for carrying to electric motor car
Supply the main power source of power source and and assist main power source to provide the accessory power supply of power source, described power supply on vehicle system to electric motor car
Also including DC/DC transducer, described accessory power supply is connected with this main power source by this DC/DC transducer.
Compared with prior art, the present invention has a following beneficial effect: the power-supply system of (1) present invention include main power source and
Accessory power supply, electric motor car instantaneous starting, accelerate or climb time, the big electric current of accessory power supply abrupt release, together with main power source to
Electric motor car provides power source, and then compensate for conventional electric car owner's power supply and cause reduced lifespan because of high rate charge-discharge frequently
Serious technological deficiency；(2) it is additionally provided with DC/DC transducer due to the present invention, under the effect of this DC/DC transducer, auxiliary
Power supply externally exports constant energy；(3) including boosting unit and pressure unit due to the DC/DC transducer of the present invention, boosting is single
Unit and pressure unit are same assembly, therefore this DC/DC converter structure is simple, cheap for manufacturing cost；(4) due to the storage of the present invention
Energy module, focuses on employing EDLC module, it is possible to realize the environment that ultralow temperature-40 DEG C uses, overcome battery modules institute nothing
The technical barrier that method realizes.
Accompanying drawing explanation
Fig. 1 is the circuit principle structure block diagram of the power-supply system of the present invention, shows main power source and accessory power supply one in figure
Act the correspondence between each parts when powering to the load.
Fig. 2 is the schematic block circuit diagram of the present invention, shows between each parts when the external energy of main power source exports in figure
Correspondence.
Fig. 3 is the circuit components figure that the connection of the present invention has the DC/DC transducer of main power source and accessory power supply, shows in figure
Having gone out main power source when accessory power supply charges, electric current is in the flow direction of each components and parts of DC/DC transducer.
Fig. 4 is the circuit components figure that the connection of the present invention has the DC/DC transducer of main power source and accessory power supply, shows in figure
Having gone out main power source when powering to the load together with accessory power supply, electric current is in the flow direction of each components and parts of DC/DC transducer.
Detailed description of the invention
Need to release further bright: the alleged electric motor car of the present invention, power-actuated cut-off including institute is reliable
, include but not limited to the relevant transport such as electric bike, electric bus, electri forklift, hybrid electric vehicle or vehicle.
Seeing Fig. 1, the power supply on vehicle system of the present invention includes main power source 1 and accessory power supply 2, wherein, main power source 1 for
Electric motor car provides power source, accessory power supply 2 in order at electric motor car instantaneous starting, accelerate or climbing etc. needs the feelings of momentary high power
Under shape, provide power source to electric motor car load together with main power source 1, and then make up main power source 1 high rate charge-discharge performance not
Foot.
Described main power source 1 can be set of cells, and this set of cells is connected or/and be connected in parallel and shape by multiple rechargeable batteries
Becoming, described accessory power supply 2 can be ultracapacitor module, and it is monomer series-connected by multiple ultracapacitors that this ultracapacitor touches group
Or/and be connected in parallel and formed.Certainly, this main power source 1 can also be other DC source.
The power supply on vehicle system of the present invention also includes DC/DC transducer 3, and described main power source 1 and accessory power supply 2 are by being somebody's turn to do
DC/DC transducer 3 is connected；DC/DC transducer 3 is also associated with main control module 4, and by the control of this main control module 4.
Seeing Fig. 2, the main control module 4 of the present invention includes that coulometric detector 41, microprocessor 42 and power device drive
Circuit 43；Wherein, coulometric detector 41 includes voltage detection unit and load current detection unit, in order to detect main power source in real time
With the electricity of accessory power supply, and according to the main power source of detection and the electricity of accessory power supply and the situation of the required electric current of load, to
Microprocessor sends signal, after coherent signal being made relatively or is judged by microprocessor, and output signal, and control power device
Drive circuit 43, makes DC/DC transducer start working, and realizes the external output of energy.
As a preferred version of the present invention, the microprocessor of the present invention uses MCU/DSP processor, use PWM,
PFM, ZVS and phase shifting control, it is achieved conversion efficiency maximizes, and environmental protection.
Fig. 2 is as a reference example, it is shown that the correspondence between each parts during the output of main power source external energy；I.e.
First coulometric detector 41 detects the electricity of accessory power supply 2, when the electricity of accessory power supply 2 is less than electricity or the load of main power source
When needing accessory power supply 2 to provide energy signal, coherent signal is sent to microprocessor 42, through microprocessor 42 to relevant letter
After number processing, and send a signal to power device drive circuit 43, power device drive circuit 43 drive DC/DC transducer work
Making, voltage or current signal to main power source 1 output are changed, after filtering rear externally output.
Seeing Fig. 3 and Fig. 4, the DC/DC transducer 3 of the present invention includes boosting unit and pressure unit, described boosting unit
It is same assembly with pressure unit, the outfan 321 that input 311 is described pressure unit of described boosting unit, and described
The input 322 that outfan 312 is described pressure unit 32 of boosting unit.The input 311 of described boosting unit is with described
The outfan 321 of pressure unit connects the port being positioned at accessory power supply 2, and the outfan 312 of described boosting unit 31 is with described
Input 322 connection of pressure unit is positioned at the output port of described main power source 1.
As a preference, the boosting unit preferred BOOST topological structure of the present invention, pressure unit preferred BUCK topology
Structure, this BOOST topological structure and BUCK topological structure share same assembly；More specifically, the DC/DC transducer in the present invention
3 include the first power tube Q1, the second power tube Q2 and energy storage inductor L；This first power tube Q1, the second power tube Q2 and storage
The annexation of energy inductance L is described below: first power tube Q1 one end is connected with described main power source 1 outfan, and the other end
It is in series with one end of the second power tube Q2；The other end of described second power tube Q2 connects the input being positioned at main power source 1；And
One end of described energy storage inductor L connects on the circuit between the first power tube Q1 and the second power tube Q2, and the other end is with auxiliary
The port helping power supply 2 is connected, and the another port of described accessory power supply 2 is connected with the second power tube Q2.Described boosting unit
Outfan 312 is positioned on the circuit that the first power tube Q1 is connected with main power source 1 with the input of described pressure unit 322, described
The input 311 of boosting unit is positioned at described energy storage inductor L with the outfan 321 of described pressure unit and is connected with accessory power supply 2
On the circuit connect.
Described power supply on vehicle system also includes loading 5, and this load 5 is electromotor, for the electric energy of power-supply system is converted
For electric motor car kinetic energy；It is positioned on the circuit that main power source 1 outfan is connected with DC/DC transducer 1, is i.e. positioned at main power source 1 and rises
On circuit between outfan 312 or the input 322 of described pressure unit of pressure unit.
Fig. 3 is as a reference example, it is shown that main power source 1 is when accessory power supply 2 charges, and electric current is each at DC/DC transducer 3
The flow direction of components and parts.I.e. obtain the electricity electricity less than main power source of accessory power supply when coulometric detector 41 detection, relevant letter
Number it is sent to microprocessor 42, after microprocessor 42 is to this signal analysis relatively, sends a signal to power device and drive electricity
Road 43, is driven the first power tube Q1 and the second power tube Q2, the reduction voltage circuit of DC/DC transducer by power device drive circuit 43
Work, now, the first power tube Q1 closes and starts working as main switch, and the second power tube Q2 afterflow, energy storage inductor enters
Row energy storage, externally one constant voltage of output or the signal of telecommunication of constant current, be charged accessory power supply 2.Owing to main power source 1 is to auxiliary
During power supply 2 is charged, under reduction voltage circuit effect, the signal of telecommunication is converted into constant voltage or constant current signal, therefore, to auxiliary
When power supply 2 charges, can well protect by accessory power supply 2.
Fig. 4 is as a reference example, it is shown that when main power source 1 powers to the load together with accessory power supply 2, electric current is at DC/
The flow direction of each components and parts of DC transducer 3.I.e. need larger current or voltage signal when coulometric detector 41 detection obtains load,
Coherent signal is sent to microprocessor 42, after microprocessor 42 is to this signal analysis relatively, sends a signal to power device
Drive circuit 43, is driven the second power tube Q2 and the first power tube Q1 of DC/DC transducer by power device drive circuit 43, rises
Volt circuit is started working, and now, the second power tube Q2 closes and starts working as main switch, and the first power tube Q1 disconnects,
Energy storage inductor L externally discharges electric energy；Accessory power supply 2, under the effect of this energy storage inductor L, exports big electric current or high electricity to load
Pressure, and then compensate for the deficiency of main power source 1 high power discharge performance, overcomes main power source 1 and causes the longevity because of high rate charge-discharge
The technological deficiency that life reduction is serious.
Claims (3)
1. a power supply on vehicle system, including for providing the main power source of power source and and assisting main power source to electricity to electric motor car
Motor-car provides the accessory power supply of power source, it is characterised in that described power supply on vehicle system also includes DC/DC transducer, described auxiliary
Power supply is helped to be connected with this main power source by this DC/DC transducer；Described DC/DC transducer includes boosting unit and pressure unit,
Described boosting unit and pressure unit are same assembly, and the input of described boosting unit is the outfan of described pressure unit,
And the input that outfan is described pressure unit of described boosting unit；The input of described boosting unit and described blood pressure lowering list
The outfan of unit connects and is positioned at the port of accessory power supply, and the input of the outfan of described boosting unit and described pressure unit
End connects the port being positioned at described main power source.
2. power supply on vehicle system as claimed in claim 1, it is characterised in that described DC/DC transducer include the first power tube,
Second power tube and energy storage inductor, described first power tube one end is connected with the outfan of described main power source, and the other end
Being in series with one end of the second power tube, the other end of described second power tube connects the input being positioned at main power source；And it is described
One end of energy storage inductor connects on the circuit between the first power tube and the second power tube, the other end and the end of accessory power supply
Mouth is connected；The another port of described accessory power supply is connected with the second power tube.
3. power supply on vehicle system as claimed in claim 2, it is characterised in that the outfan of described boosting unit and described blood pressure lowering
The input of unit is positioned on the circuit that the first power tube is connected with main power source, the input of described boosting unit and described blood pressure lowering
The outfan of unit is positioned on the circuit that described energy storage inductor is connected with accessory power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610537918.9A CN106143191A (en) | 2016-07-10 | 2016-07-10 | A kind of power supply on vehicle system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610537918.9A CN106143191A (en) | 2016-07-10 | 2016-07-10 | A kind of power supply on vehicle system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106143191A true CN106143191A (en) | 2016-11-23 |
Family
ID=58061583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610537918.9A Pending CN106143191A (en) | 2016-07-10 | 2016-07-10 | A kind of power supply on vehicle system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106143191A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1490193A (en) * | 2003-08-27 | 2004-04-21 | 西安交通大学 | Electric vehicle supercapacitor auxiliary power system |
| CN1554545A (en) * | 2003-12-22 | 2004-12-15 | 西安交通大学 | Construction method of electric vehicle flywheel battery auxiliary power supply system |
| CN104309483A (en) * | 2014-09-02 | 2015-01-28 | 富华德电子有限公司 | Power supply system for electric vehicle |
-
2016
- 2016-07-10 CN CN201610537918.9A patent/CN106143191A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1490193A (en) * | 2003-08-27 | 2004-04-21 | 西安交通大学 | Electric vehicle supercapacitor auxiliary power system |
| CN1554545A (en) * | 2003-12-22 | 2004-12-15 | 西安交通大学 | Construction method of electric vehicle flywheel battery auxiliary power supply system |
| CN104309483A (en) * | 2014-09-02 | 2015-01-28 | 富华德电子有限公司 | Power supply system for electric vehicle |
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| C06 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161123 |
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| WD01 | Invention patent application deemed withdrawn after publication |