CN102064595A - Standby energy source system for electric vehicles - Google Patents
Standby energy source system for electric vehicles Download PDFInfo
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- CN102064595A CN102064595A CN2011100220224A CN201110022022A CN102064595A CN 102064595 A CN102064595 A CN 102064595A CN 2011100220224 A CN2011100220224 A CN 2011100220224A CN 201110022022 A CN201110022022 A CN 201110022022A CN 102064595 A CN102064595 A CN 102064595A
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- electric automobile
- power source
- power
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- source system
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- 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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- 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
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Abstract
A standby energy source system for electric vehicles consists of a gasoline generator set, a transfer switch and a DC (direct current) output device, wherein the DC output device is a charger or a transformation and rectifier-filter circuit. The standby energy source system can provide an auxiliary power supply for the electric vehicles. The standby energy source system can drive the electric vehicles by directly charging a power battery through the charger, or by generating a low-voltage DC power (15 V to 30 V) through the transformation and rectifier-filter circuit, and directly supplying the power to a motor system through a controller. Therefore, the provision of the standby energy source system is one of the effective ways to solve the problem that the electric vehicle cannot run during driving due to low battery capacity.
Description
Technical field
The present invention relates to the energy resource system of electric automobile, relate in particular to the auxiliary energy system of internal combustion engine generator group as electric automobile.
Background technology
Application number is 200520010521.1, the utility model name is called a kind of gasoline engine generator group with AC and DC output function of patent disclosure of " a kind of gasoline engine generator group ".Comprise engine, rotor, empty filter, muffler, fuel tank and control panel, fuel tank is supported on by supporting bracket on the tail-bracket of rotor, and direct current jack, rectifier bridge and DC over current protector are installed on described supporting bracket.This gasoline engine generator group has solved the crowded situation of electric position of components layout on its control panel, make that electric position of components can be able to reasonable Arrangement on the control panel, help the heat radiation of electric component, stopped crowded existing potential safety hazard owing to electric position of components on the control panel.
Application number is 200920078447.5, the utility model name be called " novel double power electric automobile " patent disclosure the novel double power electric automobile relate to the power configuration technical field of electric automobile, its main composition comprises: 1, motor; 2, frequency-variable controller; 3, bicycle speed controller; 4, onboard charger; 6,7, super quiet vehicle-mounted gasoline engine generator group; 8, batteries; 9, voltage matches device; 10, solar panel; 11, microprocessor CPU; 12, parameter display screen; 13, electric-controlled switch instruction output board; 14, A/D change-over circuit plate etc.; 15, the shift gear box partly constitutes.Existing electric motor car is owing to have only batteries as unique power, there are not vehicle-mounted stand-by power and charging device, after the storage battery electric energy is used up midway, have no self-saving ability, and existing electric motor car do not have perfect shift gear box, climbing capacity is poor, can only be as the short distance traffic instrument in the tourist attractions, more can not pass in and out the abrupt slope in standing parking lot, therefore, market is very limited.The utility model except that batteries as the active force, having set up can automatically actuated gasoline engine generator group 6,7, it provides emergent second power that drags electric automobile.
Application number is that 200920112442.X, utility model name are called a kind of hybrid vehicle of patent disclosure of " a kind of hybrid vehicle ", comprise car body, electric switch controller, front-wheel and trailing wheel, described trailing wheel is provided with drive motors, car body inside is provided with fuel tank and battery case, below fuel tank, be provided with gasoline engine generator, be provided with electrokinetic cell in the battery case, described drive motors is electrically connected with gasoline engine generator and battery respectively by a controller, and controller also is connected with the electric switch controller; The utility model adopts controller to reach manual multi-mode control device automatically, to realize the purpose of vehicle high-efficiency low energy consumption.
The gasoline engine generator group generally is used for civilian or worker's usefulness, serve as generally with output 220V alternating current, and power has 3-10 horsepower, also is useful in the electric automobile as the usefulness of second power.The composition of gasoline engine generator group is gasoline engine, starter motor, startup storage battery, generator etc.Now disclosed generating set mostly is that its structure is described, and does not relate to power etc., as the generating set of second power of electric automobile, does not also have the coupling of explanation and electric automobile.Electric automobile stand-by power source of the present invention system, solved the matching problem of generating set system and electric automobile, outside deaeration fry dried food ingredients group of motors on the composition, link to each other by change over switch, dc output unit spare is arranged again, described dc output unit spare is exactly transformation and current rectifying and wave filtering circuit or charger, the stand-by power source system is by transformer and current rectifying and wave filtering circuit, for electric automobile provides accessory power supply, described accessory power supply is divided into two kinds of mode of operations, the first, pass through change over switch from the gasoline engine generator group, without the alternating current of the 220V of transformation and current rectifying and wave filtering circuit, can be power battery charging by charger, described power battery charging, can when electric automobile during traveling, charge, also can when electric automobile stops, charge; It two is, by change over switch, through transformation and current rectifying and wave filtering circuit, and the direct current that produces, directly drive motors work drives electric automobile during traveling from the gasoline engine generator group.
Summary of the invention
The objective of the invention is, for electric automobile provides the stand-by power source system, electric automobile often has electrokinetic cell when electric weight is not enough under steam, be inconvenient to the situation of charging again, described stand-by power source system connects charger by change over switch, can directly be power battery charging, also can be by transformation and current rectifying and wave filtering circuit, produce low-voltage dc power supply, directly for electric system provides power supply, powered vehicle is travelled by controller; Increase the electrokinetic cell capacity, can increase continual mileage, still, can not increase continual mileage to increase the electrokinetic cell capacity, because battery capacity has increased, weight has increased, and price has increased.Therefore, electric automobile is equipped with the stand-by power source system and solves electric automobile under steam because of one of not enough effective ways that can't travel of electric weight.
To achieve these goals, the present invention is by the following technical solutions:
A kind of electric automobile stand-by power source system is by the gasoline engine generator group, change over switch, dc output unit spare is formed, for electric automobile provides accessory power supply, it is characterized in that: described gasoline engine generator group connects change over switch by lead, and change over switch connects dc output unit spare by lead.
According to described electric automobile stand-by power source system, it is characterized in that: described dc output unit spare is a charger.
According to described electric automobile stand-by power source system, it is characterized in that: described dc output unit spare is transformation and current rectifying and wave filtering circuit.
According to described electric automobile stand-by power source system, it is characterized in that: described accessory power supply is the accessory power supply that transformation and current rectifying and wave filtering circuit directly provide for motor by controller, and drive motors work drives electric automobile during traveling.
According to described electric automobile stand-by power source system, it is characterized in that: described charger, be directly connected on the electrokinetic cell, be power battery charging.
According to described electric automobile stand-by power source system, it is characterized in that: described power battery charging, charge when dead ship condition.
According to described electric automobile stand-by power source system, it is characterized in that: described power battery charging, charge when driving states.
According to described electric automobile stand-by power source system, it is characterized in that: described accessory power supply, the scope of output voltage is 15V-30V.
Description of drawings
Fig. 1 is a work schematic diagram of the present invention.
In the accompanying drawing: 1, gasoline engine generator group 2, change over switch; 3, charger 4, electrokinetic cell; 5, mains switch 6, controller; 7, transformer; 8, rectification circuit; 9, capacitor filter 10, transformation and current rectifying and wave filtering circuit.
Embodiment
The present invention will be further described below in conjunction with the drawings and specific embodiments.
Electric automobile stand-by power source of the present invention system, as shown in Figure 1, comprising gasoline engine generator group 1, change over switch 2, charger 3, electrokinetic cell 4, mains switch 5, controller 6, transformer 7, rectification circuit 8, capacitor filter 9, transformation and current rectifying and wave filtering circuit 10.
Assembly relation:
The 220V single phase alternating current (A.C.) output of gasoline engine generator group 1 is connected to the input of charger 3 by change over switch 2, and the dc output end of charger 3 links to each other with the positive negative terminal of electrokinetic cell 4, and the positive negative terminal of electrokinetic cell 4 connects mains switch 5; Change over switch 2 connects the input of transformation and current rectifying and wave filtering circuit 10, and transformation is connected mains switch 5 with the output of current rectifying and wave filtering circuit 10; Mains switch 5 connects the input of controller 6, and the output of controller 6 connects motor.The output of transformer 7 connects the input of rectification circuit 8, and the output of rectification circuit 8 connects the input of capacitor filter 9, forms transformation and current rectifying and wave filtering circuit 10 by transformer 7, rectification circuit 8, capacitor filter 9.
Charger 3 and transformation and current rectifying and wave filtering circuit 10, because all be output DC, the direct current of charger 3 outputs directly is an electrokinetic cell 4, the direct current of transformation and current rectifying and wave filtering circuit 10 outputs is by controller 6 drive motors work, make vehicle ', so charger 3 and transformation and current rectifying and wave filtering circuit 10 are collectively referred to as dc output unit spare.
Advantageous effect of the present invention:
The electric automobile that the present invention was equipped with, used electrokinetic cell is a ferric phosphate lithium cell, is the main power source system with the ferric phosphate lithium cell, with standby energy resource system as secondary power system, the specification of described ferric phosphate lithium cell is: 96V150Ah, nominal voltage are 96V, and weight is about 200kg.More than 20 ℃ the time, use the continual mileage of the electric automobile of 96V150Ah electrokinetic cell capacity to be about 150km, when the electrokinetic cell capacity increases, can increase continual mileage, still, weight has increased, price has increased, and therefore, can not increase continual mileage to increase the electrokinetic cell capacity.Electric automobile often has when electric weight is not enough under steam, be inconvenient to the situation of charge again, and therefore, electric automobile outfit stand-by power source system is solution electric automobile one of the effective ways of electric weight deficiency under steam.Electric automobile stand-by power source of the present invention system by change over switch, can directly be a power battery charging, also can produce low-voltage dc power supply by transformation and current rectifying and wave filtering circuit, directly for electric system provides power supply, and the powered vehicle low speed driving.
Design principle of the present invention is as follows:
The kerb weight of the electric automobile that the present invention is used is 1000kg approximately, and total weight is about G=1200kg, and air resistance coefficient is about f
1=0.335, radius of wheel is about r=0.26m, and coefficient of rolling resistance is about f=0.016, and transmission efficiency is about η
1=85%, slippage rate is about δ=10%, and the efficient of then trackslipping is about η
δ=90%, then gross efficiency is about η=η
1* η
δ=76.5%; The specification of the ferric phosphate lithium cell that is equipped with is: 96V150Ah, and nominal voltage is U=96V, weight is about G
1=200kg, the rated power of single motor is about P
1=5.5kw, the total specified power of bi-motor is about P=11kw, the moment coefficient K of motor
M=0.9.The 96V150Ah electrokinetic cell, discharging current is about 30A during with discharge rate discharge in 5 hours, and when the 30A current value charging with 5 hour rates, battery nominal value is 96V, and then the input current value of the AC power of 220V is about 13.5A, and power is about 3kVA.
Stand-by power source of the present invention system, it is 5 horsepowers gasoline engine generator group, when efficient is about 81.6%, produce the 220V single-phase alternating current of about 3kw, by change over switch, can directly be power battery charging, also can be by transformation and current rectifying and wave filtering circuit, efficient is about 83%, then produces power output and is about P
1=2.5kw low-voltage dc power supply, directly for electric system provides power supply, powered vehicle is travelled, and total efficient is about η=81.6%*83%=68%.
The speed per hour of electric automobile is when Um=80km/h, and slippage rate is about δ=10%, and then motor speed is about
The angular speed of motor is about
Resistance to rolling is about N
1=fgG=188N, windage is about
Wherein g is an acceleration of gravity, total resistance
The bi-motor power output is about
Electric current I=P/U=115A, driving torque is about M=(N
1+ N
f) * r/ η
δ=102N.m.
When low vehicle speeds, when speed per hour is lower than 20km/h, total resistance N
z＜200N.The power output of motor is about
Thereby when providing the direct drive motors of accessory power supply to make vehicle ' in the stand-by power source system, be when accelerating time of the speed per hour of 0-3m/s being 15s when the speed of a motor vehicle 0 increases to 10.8km/h, the output voltage of design stand-by power source system is as follows:
Acceleration is:
Then, tractive effort is: N=ma=240N, the actuating force of motor is: N
q=N+N
z=440N, driving torque is: M
q=γ * N
q=114.4N.m, electric current is:
Get I
1=130A.
When selected gasoline engine is 5 horse-power-hours, because efficient is about 68%, the gasoline engine generator power output is about P
1=2.5kw, electric current is about: I
1=130A, then, output voltage is about: V
1=19V, directly during powered vehicle, the speed of a motor vehicle is about U
1=15km/h.When vehicle ', driving power is about P
1=1.45kW, driving torque is: M
q=r*N
z=52N.m, electric current is:
When output voltage was about 30V, then power output was about 1.75kW, did not exceed P
1=2.5kw meets the demands, and like this, the working range of the output voltage of design stand-by power source system is 15V-30V, and rated value is about V
1=19V.
Claims (8)
1. an electric automobile stand-by power source system is by the gasoline engine generator group, change over switch, dc output unit spare is formed, for electric automobile provides accessory power supply, it is characterized in that: described gasoline engine generator group connects change over switch by lead, and change over switch connects dc output unit spare by lead.
2. electric automobile stand-by power source according to claim 1 system, it is characterized in that: described dc output unit spare is a charger.
3. electric automobile stand-by power source according to claim 1 system, it is characterized in that: described dc output unit spare is transformation and current rectifying and wave filtering circuit.
4. electric automobile stand-by power source according to claim 1 system, it is characterized in that: described accessory power supply is the accessory power supply that transformation and current rectifying and wave filtering circuit directly provide for motor by controller, drive motors work drives electric automobile during traveling.
5. electric automobile stand-by power source according to claim 2 system is characterized in that: described charger, be directly connected on the electrokinetic cell, and be power battery charging.
6. electric automobile stand-by power source according to claim 5 system is characterized in that: described power battery charging, charge when dead ship condition.
7. electric automobile stand-by power source according to claim 5 system is characterized in that: the charging of described electric power pond, when driving states, charge.
8. electric automobile stand-by power source according to claim 1 system, it is characterized in that: described accessory power supply, the scope of output voltage is 15V-30V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100220224A CN102064595A (en) | 2011-01-14 | 2011-01-14 | Standby energy source system for electric vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100220224A CN102064595A (en) | 2011-01-14 | 2011-01-14 | Standby energy source system for electric vehicles |
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| Publication Number | Publication Date |
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| CN102064595A true CN102064595A (en) | 2011-05-18 |
Family
ID=43999755
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100220224A Pending CN102064595A (en) | 2011-01-14 | 2011-01-14 | Standby energy source system for electric vehicles |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103332103A (en) * | 2013-05-02 | 2013-10-02 | 周慧 | Special gasoline engine generator for electromobile |
| CN109066916A (en) * | 2018-09-28 | 2018-12-21 | 上汽通用五菱汽车股份有限公司 | Charge/discharge control method, mobile power source pedestal and the automobile of vehicle-mounted mobile power supply |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2347809Y (en) * | 1998-09-14 | 1999-11-10 | 周龙 | Driving and generating device for electric motor car |
| US20050093508A1 (en) * | 2003-10-29 | 2005-05-05 | Denso Corporation | Automotive power supply system designed to ensure stability in charging storage batteries |
| CN2852494Y (en) * | 2005-12-05 | 2006-12-27 | 马增录 | Multi-purpose automobile starter |
| CN201472180U (en) * | 2009-09-01 | 2010-05-19 | 高钟声 | Electric automobile with intelligent power generation charging device |
| CN201998814U (en) * | 2011-01-14 | 2011-10-05 | 枣庄学院 | Spare energy system of electric automobile |
-
2011
- 2011-01-14 CN CN2011100220224A patent/CN102064595A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2347809Y (en) * | 1998-09-14 | 1999-11-10 | 周龙 | Driving and generating device for electric motor car |
| US20050093508A1 (en) * | 2003-10-29 | 2005-05-05 | Denso Corporation | Automotive power supply system designed to ensure stability in charging storage batteries |
| CN2852494Y (en) * | 2005-12-05 | 2006-12-27 | 马增录 | Multi-purpose automobile starter |
| CN201472180U (en) * | 2009-09-01 | 2010-05-19 | 高钟声 | Electric automobile with intelligent power generation charging device |
| CN201998814U (en) * | 2011-01-14 | 2011-10-05 | 枣庄学院 | Spare energy system of electric automobile |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103332103A (en) * | 2013-05-02 | 2013-10-02 | 周慧 | Special gasoline engine generator for electromobile |
| CN109066916A (en) * | 2018-09-28 | 2018-12-21 | 上汽通用五菱汽车股份有限公司 | Charge/discharge control method, mobile power source pedestal and the automobile of vehicle-mounted mobile power supply |
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Application publication date: 20110518 |