CN103293004B - Power system of electric automobile test platform and its energy allocation for test method - Google Patents
Power system of electric automobile test platform and its energy allocation for test method Download PDFInfo
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- CN103293004B CN103293004B CN201210046208.8A CN201210046208A CN103293004B CN 103293004 B CN103293004 B CN 103293004B CN 201210046208 A CN201210046208 A CN 201210046208A CN 103293004 B CN103293004 B CN 103293004B
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Abstract
The invention discloses a kind of power system of electric automobile test platform, the test platform includes console, entire car controller, tested motor, tested motor controller, dynamometer machine, Dynamometer Control device, electrokinetic cell and auxiliary energy unit.Wherein electric energy distribute module, tested motor controller, tested motor, Dynamometer Control device, dynamometer machine constitutes an energy closed-loop system, electric energy caused by dynamometer machine need not feed back to power network, inverter is not needed between whole system test platform and AC network, and dc source therein is also served only for carrying out the system loss of test platform energy supplement, it so can both improve system capacity utilization rate, simplify dynamical system test platform complexity, also power system of electric automobile research and development difficulty of test and cost can be reduced, influence of the test system to power network can also be reduced.
Description
Technical field
The present invention relates to electric automobile field, more particularly to a kind of power system of electric automobile test platform, and it is this
The energy allocation for test method of test platform.
Background technology
Substantial amounts of petroleum resources are consumed while vehicle brings convenient, the external environment condition of human survival is produced
Substantial pollution, at present electric automobile such as fuel cell electric vehicle, oil-electric vehicle, solar electrically propelled vehicle, pure
Electric automobile etc. has turned into domestic each major company's Research Emphasis.Power system of electric automobile mainly by energy source (such as electrokinetic cell,
Fuel cell, storage capacitor etc.), power electronic device, the composition such as motor, as electric automobile gradually steps into industrialization rank
How electric automobile parts and power system performance are tested, are examined as the research emphasis of next step by section.
To test each parts of dynamical system and system, the control strategy of system is verified, improves dynamical system
Reliability, a simple and practical dynamical system test platform are crucial.Power system of electric automobile test platform is universal at present
Using dynamometer machine energy-feedback power grid pattern, energy two-way flow between dynamometer machine and three phase network.The work of the system is former
Reason：During driving, the three-phase alternating current of power network is changed into direct current by rectifier, energy is absorbed from power network, by tested motor controller
Driving tested motor is converted into mechanical energy, after generated electricity by dynamometer machine and its controller and be converted into direct current again, direct current warp
Power network is fed back in the form of three-phase alternating current after crossing inversion, the difference of system input and output electric energy is lost for system effectiveness.
This system test platform is complicated, capacity usage ratio is low, cost is higher, especially because there is significant proportion
Energy demand feedback grid, there is very high requirement to the quality (such as low harmony wave) of inverter.
The content of the invention
For above-mentioned the deficiencies in the prior art, it is an object of the invention to provide it is a kind of it is simple in construction, without to power network feedback
The power system of electric automobile test platform of energy.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：
A kind of power system of electric automobile test platform, including tested motor, dynamometer machine, console, entire car controller, quilt
Measured motor controller, Dynamometer Control device and electrokinetic cell, the tested motor mechanically connect with the dynamometer machine, described tested
Electric machine controller is connected with the tested motor, and the Dynamometer Control device is connected with the dynamometer machine, the console and institute
State tested motor controller, entire car controller communication connection, the entire car controller and the tested motor controller communication link
Connect, the electrokinetic cell is connected with tested motor controller, and the electrokinetic cell drives institute by the tested motor controller
Tested motor rotation is stated, it also includes an auxiliary energy unit, and the auxiliary energy unit includes a DC power supplier, electric energy
Memory module parallel connection and an electric energy distribute module, the DC power supplier and the power storage wired in parallel, the direct current
Power module is connected by the electric energy distribute module with the tested motor controller, the entire car controller and the electric energy
Distribute module is communicated to connect, and the Dynamometer Control device is connected with the input of the electric energy distribute module.
Preferably, the power storage module is energy storage super capacitor or power accumulator.
Preferably, the DC power supplier is ACDC rectifiers, battery, generator system or fuel cell system.
Preferably, the electric energy distribute module is a dcdc converter.
In the power system of electric automobile test platform, electric energy distribute module, tested motor controller, tested motor,
Dynamometer Control device, dynamometer machine constitute an energy closed-loop system, and electric energy need not feed back to power network caused by dynamometer machine, and straight
Stream power supply is also served only for carrying out energy supplement to the system loss to test platform, can so improve system capacity utilization rate, letter
Change dynamical system test platform complexity, while can also reduce power system of electric automobile research and development difficulty of test and cost,
Reduce the influence to power network.
The invention also discloses a kind of energy allocation for test method of above-mentioned power system of electric automobile test platform, the party
Method comprises the following steps：
1) load torque of dynamometer machine is determined according to duty parameter by console；
2) determine that demand torque is sent to entire car controller according to duty parameter by console；
3) moment of torsion determines to calculate tested motor demand power entire car controller according to demand；
4) output current of electric energy distribute module is adjusted by entire car controller, it is determined that the auxiliary energy under different test conditions
Measure the energy sendout of unit and electrokinetic cell.
The method of testing reaches control power by the output current of vehicle control unit controls regulation electric energy distribute module
The purpose of cell output current, it can so test out the optimum capacity point of electrokinetic cell and auxiliary energy unit under different operating modes
Proportioning, and then integrated vehicle control tactics can be optimized for different operating modes, realize that energy utilization maximizes, improve vehicle and continue
Sail mileage.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, below with presently preferred embodiments of the present invention and to coordinate accompanying drawing to carry out this patent detailed
Describe in detail bright.
Brief description of the drawings
Fig. 1 is the structured flowchart of the embodiment of the present invention.
Fig. 2 is the test platform architecture block diagram of electric automobile fuel powered systems.
Embodiment
The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.
As shown in figure 1, the power system of electric automobile test platform includes console 1, tested motor 3, dynamometer machine 5, whole
Vehicle controller 2, tested motor controller 4, Dynamometer Control device 6, electrokinetic cell 7 and auxiliary energy unit 8.Tested motor 3 with
The flexible mechanical of dynamometer machine 5 is connected, and junction is provided with the sensor of detection moment of torsion, and sensor is connected with console 1, and sensor can incite somebody to action
The torque value of detection feeds back to console 1.Tested motor controller 4 is connected with tested motor 3, and tested motor controller 4 is used for
Control the torque output of tested motor 3.Dynamometer Control device 6 is connected with dynamometer machine 5, and Dynamometer Control device 6 is used to control measurement of power
The load torque of machine 5.Electrokinetic cell 7 is connected with tested motor controller 4, and electrokinetic cell 7 is that tested motor 3 provides energy, is driven
Dynamic tested motor 3 rotates.
Auxiliary energy unit 8 includes a DC power supplier 81, an electric energy distribute module 82 and power storage module 83, electricity
Energy distribute module 82 is connected with tested motor controller 4.So when tested motor 3 is in motoring condition, auxiliary energy unit 8
Energy is provided for tested motor 3 jointly with electrokinetic cell 7, and when tested motor 3 is in generating state, tested motor 3 can incite somebody to action
Mechanical energy is converted into electrical power storage in electrokinetic cell 7.
DC power supplier 81 is in parallel with power storage module 83, and the electrical power storage module 83 can be used for equilibrium energy stream,
The energy dynamics response speed of the system test platform is improved, power storage module 83 can be that energy storage super capacitor or power store
Battery.Dynamometer Control device 6 is connected with the input of electric energy distribute module 82, and dynamometer machine 5 is caused by under the drive of tested motor 3
Electric energy can feed back to electric energy distribute module 82 by Dynamometer Control device 6, and be conveyed to tested motor through electric energy distribute module 82
Controller 4 is to drive tested motor 3 to rotate.Console 1 communicates to connect with tested motor controller 6, entire car controller 2, vehicle
Controller 2 communicates to connect with tested motor controller 4, electric energy distribute module 82.
DC power supplier 81 can be ACDC rectifiers, battery, generator system or fuel cell system, and electric energy divides
Dcdc converter is generally with module.As shown in Fig. 2 as one embodiment of the present of invention, for based on dynamical system of the present invention
Test platform builds fuel-cell vehicle dynamical system testboard, wherein the fuel cell system as auxiliary energy unit is by ACDC
Rectifier 81 ', electrical power storage module 83 and the three parts of dcdc converter 82 ' form to simulate.
In the power system of electric automobile test platform, electric energy distribute module 82, tested motor controller 4, tested electricity
Machine 3, Dynamometer Control device 6, dynamometer machine 5 constitute an energy closed-loop system, and using direct current grid-connect mode, dynamometer machine 5 produces
Electric energy will not feed back again can be in power network, but feed back to electric energy distribute module 82, and pass to by electric energy distribute module 82
Measured motor controller 4, rotate feedback power driving tested motor 3, whole system test platform is just needed again using inversion electricity
Source, and dc source is also served only for carrying out energy supplement to the system loss to test platform, can so improve system capacity profit
With rate, simplify dynamical system test platform complexity, while can also reduce power system of electric automobile research and development difficulty of test
And cost.
The dynamical system of whole electric automobile can be tested in the power system of electric automobile test platform, also can be right
Each part of dynamical system is tested respectively, in test process, only needs the part that will be tested to replace the test platform phase
Part is answered, is then operated test platform, you can the part is tested.
The invention also discloses a kind of energy allocation for test method of above-mentioned power system of electric automobile test platform, the survey
Method for testing comprises the following steps：First, the load torque of dynamometer machine 5 is determined according to duty parameter by console 1, and passes through measurement of power
Machine controller 6 makes dynamometer machine 5 apply load torque to tested motor 3.Determined simultaneously by console 1 according to duty parameter tested
The demand torque of motor 3 is simultaneously sent to entire car controller 2.Then by entire car controller 2, moment of torsion determines that calculating is tested according to demand
The power of the demand of motor 3 output, the output current of electric energy distribute module 82 is then adjusted by entire car controller 2, due to tested electricity
Machine 3 is to provide energy (i.e. I jointly by auxiliary energy unit 8 and electrokinetic cell 7Electric energy distribute module+IElectrokinetic cell=ITested motor), therefore defeated
Go out power it is certain on the premise of, exported by controlling the output current of electric energy distribute module 82 just to can reach control electrokinetic cell 7
The purpose of electric current, the energy sendout of auxiliary energy unit 8 and electrokinetic cell 7 under different test conditions is so can determine that,
So as to test out the optimum capacity distribution ratio of electrokinetic cell and auxiliary energy unit under different operating modes, and then different works can be directed to
Condition can optimize to integrated vehicle control tactics, realize that energy utilization maximizes, improve vehicle continual mileage.
A kind of power system of electric automobile test platform and its energy distribution provided above the embodiment of the present invention is surveyed
Method for testing is described in detail, for those of ordinary skill in the art, according to the thought of the embodiment of the present invention, specific real
There will be changes in mode and application are applied, in summary, this specification content should not be construed as the limit to the present invention
System, all any changes made according to design philosophy of the present invention are all within protection scope of the present invention.
Claims (4)
1. a kind of power system of electric automobile test platform, including it is tested motor, dynamometer machine, console, entire car controller, tested
Electric machine controller, Dynamometer Control device and electrokinetic cell, the tested motor mechanically connect with the dynamometer machine, the tested electricity
Machine controller is connected with the tested motor, and the Dynamometer Control device is connected with the dynamometer machine, the console with it is described
Tested motor controller, entire car controller communication connection, the entire car controller communicate to connect with the tested motor controller,
The electrokinetic cell is connected with tested motor controller, and the electrokinetic cell drives the quilt by the tested motor controller
Measured motor rotates, it is characterised in that：It also includes an auxiliary energy unit, and the auxiliary energy unit includes a dc source mould
Block, a power storage module and an electric energy distribute module, the DC power supplier and the power storage wired in parallel, it is described
DC power supplier is connected by the electric energy distribute module with the tested motor controller, the entire car controller with it is described
Electric energy distribute module is communicated to connect, and the Dynamometer Control device is connected with the input of the electric energy distribute module.
2. power system of electric automobile test platform according to claim 1, it is characterised in that：The power storage module
For energy storage super capacitor or power accumulator.
3. power system of electric automobile test platform according to claim 1, it is characterised in that：The DC power supplier
For ACDC rectifiers, battery, generator system or fuel cell system.
4. power system of electric automobile test platform according to claim 1, it is characterised in that：The electric energy distribute module
For a dcdc converter.
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| CN201210046208.8A CN103293004B (en) | 2012-02-27 | 2012-02-27 | Power system of electric automobile test platform and its energy allocation for test method |
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| CN103293004B true CN103293004B (en) | 2017-12-01 |
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| CN106646020B (en) * | 2016-10-11 | 2019-11-22 | 清华大学 | Multi-functional dynamic test system based on battery management |
| CN109245259A (en) * | 2018-08-28 | 2019-01-18 | 开沃新能源汽车集团有限公司 | A kind of fuel cell joint debugging experimental stand using photovoltaic system |
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| US5218860A (en) * | 1991-09-25 | 1993-06-15 | Automation Technology, Inc. | Automatic motor testing method and apparatus |
| CN2738261Y (en) * | 2004-10-20 | 2005-11-02 | 清华大学 | Experimental research apparatus for fuel battery mixed power system |
| CN101000280A (en) * | 2006-12-28 | 2007-07-18 | 奇瑞汽车有限公司 | Bench test device for mixed power vehicle |
| CN100573177C (en) * | 2007-08-31 | 2009-12-23 | 奇瑞汽车股份有限公司 | A kind of hybrid power automobile drive electric motor test bench and method of testing |
| CN201867477U (en) * | 2010-09-29 | 2011-06-15 | 中国第一汽车集团公司 | Novel testing table stand for hybrid power motor |
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