CN107505572A - A kind of power assembly of electric automobile energy stream test system and method - Google Patents
A kind of power assembly of electric automobile energy stream test system and method Download PDFInfo
- Publication number
- CN107505572A CN107505572A CN201710572156.0A CN201710572156A CN107505572A CN 107505572 A CN107505572 A CN 107505572A CN 201710572156 A CN201710572156 A CN 201710572156A CN 107505572 A CN107505572 A CN 107505572A
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- power
- motor
- power assembly
- machine controller
- heat
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/005—Testing of electric installations on transport means
- G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
-
- 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 relates to a kind of power assembly of electric automobile energy stream test system and method, it is made up of power assembly system of electric vehicle, heat management system and data collecting system.Power assembly system includes power battery pack, electric machine controller and motor；Heat management system includes three independent liquid stream heat-exchange systems, and liquid stream heat-exchange system includes constant temperature water tank, water pump, filter, valve and pipeline；Data collecting system includes NI controllers, temperature sensor, flow sensor, power analyzer, dynamometer machine, Dynamometer Control device and host computer.Each part of power assembly carries out temperature control by respective liquid stream heat-exchange system respectively.Host computer sends control signal by NI controllers to liquid stream heat-exchange system, electric machine controller.Power analyzer and dynamometer machine measurement electric parameter and mechanical parameter is respectively adopted, can test under different temperatures and operating condition, the energy stream and energy loss situation of power assembly of electric automobile.
Description
Technical field
A kind of present invention design electric automobile testing field, and in particular to test system of power assembly of electric automobile energy stream
System and method.
Background technology
Energy crisis, environmental pollution and the limitation of various countries' Abgasgesetz cause various countries to greatly develop electric automobile, from length
From the point of view of remote, zero oil consumption of pure electric automobile, zero-emission feature cause it to turn into the direction of car enterprise future development.
Restrict Development of Electric Vehicles at present mainly has that vehicle course continuation mileage is shorter, and the charging interval is longer, battery it is reliable
Property, service life and security etc. can't reach requirement.
Power assembly of electric automobile is mainly made up of power battery pack, electric machine controller and motor, and power assembly is each
At different temperature, its energy efficiency is different, and the effect of heat management system is to make each component working of power assembly for component working
At a proper temperature, optimum Working is at, ensures that each part efficient stable is safely run.
Existing electric automobile energy current test system is difficult to carry out system capacity current test to power assembly, and can not
The individually temperature of control electric automobile, electric machine controller and motor, makes power battery pack, electric machine controller and motor
Work at different temperature respectively, therefore different temperatures and operating condition can not be studied to power battery pack, electric machine controller
With the influence of motor.
The content of the invention
For the deficiency of existing electric automobile test system, it is an object of the invention to provide a kind of power assembly of electric automobile
The test system and method for energy stream, power battery pack, electric machine controller and drive under different temperatures and operating condition can be tested
The efficiency of dynamic motor, the energy stream that test system can be as an overall operation and to system are tested.
To solve the above problems, the present invention uses following technical scheme：
A kind of power assembly of electric automobile energy stream test system, including power assembly system, heat management system and number
According to acquisition system.
Power assembly system is system under test (SUT), and it includes power battery pack, electric machine controller and motor, electrokinetic cell
Group is electrically connected with electric machine controller, and electric machine controller is electrically connected with motor, and motor passes through shaft coupling
Device outwards exports mechanical work.
The function of heat management system is is to make each component working of power assembly it includes the first liquid stream and changed under target temperature
Hot systems, the second liquid stream heat-exchange system and the 3rd liquid stream heat-exchange system, each liquid stream heat-exchange system include constant temperature water tank, water
Pump, filter, valve and pipeline, constant temperature water tank, water pump, filter are sequentially connected with by pipeline, and pipeline, which is provided with, to be used to control
The valve of flow；The outlet of the entrance, filter of constant temperature water tank is connected group with each building block in power assembly system respectively
Into loop, the first liquid stream heat-exchange system and power battery pack, the second liquid stream heat-exchange system and electric machine controller, the 3rd liquid stream exchange heat
System is connected with motor by pipeline.
For the function of data collecting system to carry out electric parameter, mechanical quantity and collection and the record of Temperature Quantity, it includes NI controls
Device, temperature sensor, flow sensor, power analyzer, dynamometer machine, Dynamometer Control device and host computer processed, wherein, host computer
It is connected with NI controllers, described flow sensor is arranged on the outlet conduit of the filter of each liquid stream heat-exchange system, institute
The temperature sensor stated is used for the characteristic temperature for measuring power assembly system；The one of power analyzer is connected to power battery pack
Output end, in addition three-phase be connected respectively to the output end of electric machine controller, dynamometer machine is coaxially connected with motor；Dynamometer machine with
Dynamometer Control device electrically connects；NI controllers respectively with temperature sensor, flow sensor, power analyzer, Dynamometer Control
Device, electric machine controller are connected.
For the data collecting system, host computer sends a signal to NI controllers, and NI controllers are sent out corresponding component again
Go out control signal, while from corresponding component reception signal and pass to host computer, for example, NI controllers are received in heat management system
Temperature sensor and flow sensor signal, if temperature and setting value have deviation, send a control signal to constant temperature water tank control
Device and valve processed, to control the temperature of coolant and flow velocity, make temperature close to setting value；NI controllers are to Dynamometer Control device
Send signal, load the corresponding moment of resistance to motor, and the measurement signal that Dynamometer Control device is received pass to it is upper
Machine；NI controllers send control signal to power analyzer, carry out the real-time collection of electric parameter data, and the data that will be collected
Pass to host computer.
For the power assembly system, its characteristic temperature is the inlet temperature of each part heat transferring medium.
Preferably, for the power assembly system, its characteristic temperature is power battery pack, electric machine controller, motor
Mean temperature at characteristic point, the characteristic point of power battery pack are located at electrokinetic cell monomer outer surface, including in electrode, battery
Portion, battery bottom；The characteristic point of electric machine controller is near IGBT module and diode (led) module；The characteristic point of motor is electricity
Near machine stator winding.
Preferably, power assembly of electric automobile energy stream test system also includes power-supply system, and power-supply system includes battery
Discharge and recharge instrument, battery charging and discharging instrument are connected with power battery pack, can progress independent to power battery pack under such a connected mode
Test.
Preferably, power assembly of electric automobile energy stream test system also includes power-supply system, and power-supply system includes power supply
Simulator, power supply simulator are connected with electric machine controller, motor, can be to electric machine controller or drive under such a connected mode
Dynamic motor is individually tested.
The invention also discloses a kind of method of testing of above-mentioned power assembly of electric automobile energy stream test system, this method
Comprise the following steps：
(1) motor is powered by power battery pack, and power battery pack charges to SOC=1.
(2) host computer sends control signals to NI controllers and arrives Dynamometer Control device again, dynamometer machine is added motor
Carry the corresponding moment of resistance.
(3) host computer sends control signals to NI controllers and arrives electric machine controller again, motor is operated in setting and turns
Square, rotating speed, power battery pack are operated under setting discharge current operating mode.
(4) host computer sends control signals to NI controllers and arrives heat management system, control power battery pack, motor control again
Device and motor are under respective target temperature.
(5) DATA REASONING is carried out after system reaches thermal balance, it is determined that the electric powered motor under different temperatures and operating mode
The situation of assembly energy stream and energy loss.
The test system and method for testing can be tested under different temperatures, and power assembly of electric automobile runs on different operating modes
Under, the loss situation of the energy stream of power assembly system and each part can be to electric automobile using the experimental data of acquisition
Power assembly carries out matching optimization so that power battery pack and motor can operate in high efficiency shape under most of operating mode
State；Electrokinetic cell, electric machine controller and the respective optimal operating temperature of motor can also be obtained using experimental data, to dynamic
Power assembly heat management system optimizes.
Described above is only technical solution of the present invention general introduction, in order to more clearly demonstrate the technological means of the present invention, and can
Content according to specification is practiced, below with the present invention example and coordinate accompanying drawing that this patent is described in detail.
Brief description of the drawings
Fig. 1 is the structural representation of power assembly energy stream test system.
Fig. 2 is the structural representation of liquid stream heat-exchange system.
Embodiment
The present invention is elaborated with reference to Figure of description.
As shown in figure 1, power assembly of electric automobile energy stream test system include power assembly system, heat management system with
And data collecting system.
Power assembly system includes power battery pack, electric machine controller and motor, power battery pack and motor control
Device is electrically connected, and electric machine controller is electrically connected with motor, and motor outwards exports machine by shaft coupling
Tool work(.
Heat management system includes the first liquid stream heat-exchange system, the second liquid stream heat-exchange system and the 3rd liquid stream heat-exchange system, often
Individual liquid stream heat-exchange system includes constant temperature water tank, water pump, filter, valve and pipeline, and constant temperature water tank, water pump, filter pass through
Pipeline is sequentially connected with, and pipeline is provided with the valve for being used for controlling flow；The outlet of the entrance, filter of constant temperature water tank is respectively with moving
Each building block in power assembly system is connected to form loop, and the first liquid stream heat-exchange system and power battery pack, the second liquid stream are changed
Hot systems and electric machine controller, the 3rd liquid stream heat-exchange system are connected with motor by pipeline.
Data collecting system includes NI controllers, temperature sensor, flow sensor, power analyzer, dynamometer machine, measurement of power
Machine controller and host computer, wherein, host computer is connected with NI controllers, and described flow sensor is arranged on each liquid stream heat exchange
On the outlet conduit of the filter of system, described temperature sensor is used for the characteristic temperature for measuring power assembly system；Power
The one of analyzer is connected to power battery pack output end, and three-phase is connected respectively to the output end of electric machine controller, measurement of power in addition
Machine is coaxially connected with motor；Dynamometer machine electrically connects with Dynamometer Control device；NI controllers respectively with temperature sensor, flow
Sensor, power analyzer, Dynamometer Control device, electric machine controller are connected.
For power assembly system, the output end of power battery pack adopts the input for being connected by cables to electric machine controller,
The output end of electric machine controller adopts the input for being connected by cables to motor, and the output end of motor is connected by shaft coupling
The input of dynamometer machine is connected to, torque rotary speed sensor is connected between motor output end and dynamometer machine input.
For heat management system, the concrete structure of liquid stream heat-exchange system is as shown in Fig. 2 in the flow direction of coolant such as figure
Shown in arrow, dotted line is control signal in figure, and heat transferring medium is 50% water and 50% ethylene glycol mixture, to ensure at low temperature
Heat transferring medium remains to normal work, and heat transferring medium reaches heat exchanger components after flowing through constant temperature water tank, water pump, filter successively and carried out
Heat exchange, constant temperature water tank is flowed back to after the completion of heat exchange, makes its temperature stabilization with the heat exchange of constant temperature water tank internal heat resource, liquid stream heat-exchange system can
Cooled down or heated with certain part to power assembly, reach the purpose of control each part temperatures of power assembly.
For data collecting system, host computer sends a signal to NI controllers, and NI controllers send control to corresponding component again
Signal processed, while from corresponding component reception signal and host computer is passed to, for example, NI controllers receive temperature in heat management system
Sensor and flow sensor signal, if temperature and setting value have deviation, send a control signal to constant temperature water tank controller
And valve, to control the temperature of coolant and flow velocity, make temperature close to setting value；NI controllers are sent to Dynamometer Control device
Signal, Resistance-load is carried out to motor, and the measurement signal that Dynamometer Control device is received passes to host computer；NI is controlled
Device processed sends control signal to power analyzer, carries out the real-time collection of electric parameter data, and by the data transfer collected to
Host computer.
NI controllers include NI CompactRIO bases, analog output boardses, simulation input board, temperature acquisition board
With high-speed CAN module, analog output boardses are connected with liquid stream heat-exchange system controller, and send control signal to it；Simulate defeated
Enter the signal that board receives sensor, such as the signal of reception flow sensor to obtain the flow velocity of liquid stream heat-exchange system；Temperature
The signal that analog input card receives temperature sensor (or obtains power assembly to obtain the heat exchange medium temperature of liquid stream heat-exchange system
The temperature of each measuring point in each part)；High-speed CAN module sends control signal to electric machine controller, and controlled motor operates in setting
Under operating mode.
The invention also discloses a kind of method of testing of power assembly of electric automobile energy stream, comprise the following steps that.
(1) power battery pack, electric machine controller, motor are sequentially connected with, and motor is powered by power battery pack.
(2) the special code that power battery pack is provided by producer carries out charging to SOC=1, if producer does not provide charger
Then charged by national standard QC/T 743-2006, ensure that initial experiment condition is identical.
(3) host computer sends control signals to NI controllers and arrives Dynamometer Control device again, dynamometer machine is added motor
Carry the corresponding moment of resistance.
(4) host computer sends control signals to NI controllers and arrives electric machine controller again, motor is operated in setting and turns
Under square, rotating speed, power battery pack is operated under setting discharge current operating mode.
(5) host computer receives the signal of temperature sensor in heat management system with NI controllers, passes through closed-loop control heat pipe
The temperature and flow velocity of heat transferring medium in reason system, so as to control power battery pack, electric machine controller and motor to be in respective
Target temperature under.
(6) DATA REASONING is carried out when system reaches thermal balance and power battery pack SOC is fixed value, it is determined that in difference
The situation of power assembly of electric automobile energy stream and energy loss at temperature and operating mode.
(7) temperature and operating condition of power assembly system, repeat step (2)~(6) are changed.
Claims (6)
1. a kind of power assembly of electric automobile energy stream test system, it is characterised in that including power assembly system, heat management system
System and data collecting system,
Power assembly system includes power battery pack, electric machine controller and motor, and power battery pack is entered with electric machine controller
Row electrical connection, electric machine controller are electrically connected with motor, and motor outwards exports mechanical work by shaft coupling；
Heat management system includes the first liquid stream heat-exchange system, the second liquid stream heat-exchange system and the 3rd liquid stream heat-exchange system, each liquid
Stream heat-exchange system includes constant temperature water tank, water pump, filter, valve and pipeline, and constant temperature water tank, water pump, filter pass through pipeline
It is sequentially connected with, pipeline is provided with the valve for being used for controlling flow；The outlet of the entrance, filter of constant temperature water tank is total with power respectively
Loop, the first liquid stream heat-exchange system and power battery pack, the second liquid stream heat exchange system are connected to form into each building block in system
System and electric machine controller, the 3rd liquid stream heat-exchange system are connected with motor by pipeline；
Data collecting system includes NI controllers, temperature sensor, flow sensor, power analyzer, dynamometer machine, dynamometer machine control
Device and host computer processed, wherein, host computer is connected with NI controllers, and described flow sensor is arranged on each liquid stream heat-exchange system
Filter outlet conduit on, described temperature sensor is used to measure the characteristic temperature of power assembly system；Power analysis
The one of instrument is connected to power battery pack output end, and three-phase is connected respectively to the output end of electric machine controller in addition, dynamometer machine with
Motor is coaxially connected；Dynamometer machine electrically connects with Dynamometer Control device；NI controllers respectively with temperature sensor, flow sensing
Device, power analyzer, Dynamometer Control device, electric machine controller are connected.
2. power assembly of electric automobile energy stream test system according to claim 1, it is characterised in that described temperature
Sensor is arranged on the outlet conduit of the filter of each liquid stream heat-exchange system.
3. power assembly of electric automobile energy stream test system according to claim 1, it is characterised in that described temperature
Sensor be arranged on power battery pack, electric machine controller, motor characteristic point at, for measuring characteristic temperature, power electric
The characteristic point of pond group includes at power battery electrode, in the middle part of battery, battery bottom；The characteristic point of electric machine controller is IGBT module
Near diode (led) module；The characteristic point of motor is near motor stator winding.
4. power assembly of electric automobile energy stream test system according to claim 1, it is characterised in that described is electronic
Automobile power assembly energy stream test system also includes power-supply system, and power-supply system includes battery charging and discharging instrument, battery charging and discharging
Instrument is connected with power battery pack.
5. power assembly of electric automobile energy stream test system according to claim 1, it is characterised in that described is electronic
Automobile power assembly energy stream test system also includes power-supply system, and power-supply system includes power supply simulator, power supply simulator with
Electric machine controller, motor connection.
6. the method for testing of power assembly of electric automobile energy stream test system according to claim 1：Electric powered motor
Assembly energy stream test system is described in claim 1, it is characterised in that it comprises the following steps：
(1) motor is powered by power battery pack, and power battery pack charges to SOC=1；
(2) host computer sends control signals to NI controllers and arrives Dynamometer Control device again, dynamometer machine is loaded phase to motor
The moment of resistance answered；
(3) host computer sends control signals to NI controllers and arrives electric machine controller again, motor is operated in setting torque, turned
Speed, power battery pack are operated under setting discharge current operating mode；
(4) host computer sends control signals to NI controllers and arrives heat management system again, control power battery pack, electric machine controller and
Motor is under respective target temperature；
(5) DATA REASONING is carried out after system reaches thermal balance, it is determined that the power assembly of electric automobile under different temperatures and operating mode
The situation of energy stream and energy loss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710572156.0A CN107505572B (en) | 2017-07-13 | 2017-07-13 | Energy flow testing system and method for electric automobile power assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710572156.0A CN107505572B (en) | 2017-07-13 | 2017-07-13 | Energy flow testing system and method for electric automobile power assembly |
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| CN107505572A true CN107505572A (en) | 2017-12-22 |
| CN107505572B CN107505572B (en) | 2023-07-18 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108710087A (en) * | 2018-07-23 | 2018-10-26 | 北京华奥汽车服务股份有限公司 | A kind of pure electric automobile battery state-of-health measures device and its measures method |
| CN109297717A (en) * | 2018-10-15 | 2019-02-01 | 浙江大学 | A kind of hybrid power assembly energy flow table and test method |
| CN109298346A (en) * | 2018-10-09 | 2019-02-01 | 浙江大学 | A kind of three electric system health status in-circuit diagnostic system of new-energy automobile and diagnostic method |
| CN109781175A (en) * | 2018-12-26 | 2019-05-21 | 中汽研（天津）汽车工程研究院有限公司 | A kind of device and method for power assembly reproduction vehicle operating condition capacity usage ratio decoupling |
| CN109828176A (en) * | 2019-03-14 | 2019-05-31 | 武汉理工大学 | A kind of New energy automobile motor battery high/low temperature loop test system |
| CN110940532A (en) * | 2019-12-16 | 2020-03-31 | 海马新能源汽车有限公司 | Vehicle energy flow testing system and method |
| CN112362209A (en) * | 2020-10-20 | 2021-02-12 | 中国航发湖南动力机械研究所 | Stator assembly for hydraulic dynamometer and stator ring machining method |
| CN114167910A (en) * | 2021-09-17 | 2022-03-11 | 郑州日产汽车有限公司 | Temperature control device for power assembly component of laboratory |
| CN114486283A (en) * | 2022-01-05 | 2022-05-13 | 阿尔特汽车技术股份有限公司 | Method and system for testing heat balance of whole vehicle and test bench |
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| CN109297717A (en) * | 2018-10-15 | 2019-02-01 | 浙江大学 | A kind of hybrid power assembly energy flow table and test method |
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| CN109828176A (en) * | 2019-03-14 | 2019-05-31 | 武汉理工大学 | A kind of New energy automobile motor battery high/low temperature loop test system |
| CN110940532A (en) * | 2019-12-16 | 2020-03-31 | 海马新能源汽车有限公司 | Vehicle energy flow testing system and method |
| CN112362209A (en) * | 2020-10-20 | 2021-02-12 | 中国航发湖南动力机械研究所 | Stator assembly for hydraulic dynamometer and stator ring machining method |
| CN114167910A (en) * | 2021-09-17 | 2022-03-11 | 郑州日产汽车有限公司 | Temperature control device for power assembly component of laboratory |
| CN114167910B (en) * | 2021-09-17 | 2022-08-09 | 郑州日产汽车有限公司 | Temperature control device for power assembly component of laboratory |
| CN114486283A (en) * | 2022-01-05 | 2022-05-13 | 阿尔特汽车技术股份有限公司 | Method and system for testing heat balance of whole vehicle and test bench |
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| CN107505572B (en) | 2023-07-18 |
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