CN107505572B - Energy flow testing system and method for electric automobile power assembly - Google Patents
Energy flow testing system and method for electric automobile power assembly Download PDFInfo
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- CN107505572B CN107505572B CN201710572156.0A CN201710572156A CN107505572B CN 107505572 B CN107505572 B CN 107505572B CN 201710572156 A CN201710572156 A CN 201710572156A CN 107505572 B CN107505572 B CN 107505572B
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- controller
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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
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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
- G01R31/34—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
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- 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
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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
Abstract
The invention relates to an energy flow test system and method for an electric automobile power assembly, which consists of the electric automobile power assembly system, a thermal management system and a data acquisition system. The power assembly system comprises a power battery pack, a motor controller and a driving motor; the heat management system comprises three independent liquid flow heat exchange systems, wherein each liquid flow heat exchange system comprises a constant temperature water tank, a water pump, a filter, a valve and a pipeline; the data acquisition system comprises an NI controller, a temperature sensor, a flow sensor, a power analyzer, a dynamometer controller and an upper computer. The temperature of each part of the power assembly is controlled by a liquid flow heat exchange system. The upper computer sends a control signal to the liquid flow heat exchange system and the motor controller through the NI controller. The power analyzer and the dynamometer are respectively used for measuring electric parameters and mechanical parameters, so that the energy flow and energy loss conditions of the electric automobile power assembly can be tested under different temperatures and operation conditions.
Description
Technical Field
The invention relates to the field of electric automobile testing, in particular to a system and a method for testing energy flow of an electric automobile power assembly.
Background
The energy crisis, environmental pollution and emission regulation limit of each country enable electric vehicles to be developed greatly in each country, and in the long term, the zero oil consumption and zero emission characteristics of pure electric vehicles enable the pure electric vehicles to be the future development direction of vehicle enterprises.
At present, the development of the electric automobile is restricted mainly by shorter whole automobile endurance mileage, longer charging time, and the reliability, service life, safety and the like of the battery can not meet the requirements.
The electric automobile power assembly mainly comprises a power battery pack, a motor controller and a driving motor, all parts of the power assembly work at different temperatures, the energy efficiency is different, and the thermal management system is used for enabling all parts of the power assembly to work at proper temperatures, so that the parts are in an optimal working state, and the efficient, stable and safe operation of all parts is ensured.
The existing electric automobile energy flow test system is difficult to carry out system energy flow test on the power assembly, and the temperatures of the electric automobile, the motor controller and the driving motor cannot be controlled independently, so that the power battery pack, the motor controller and the driving motor respectively work at different temperatures, and therefore the influence of different temperatures and operation conditions on the power battery pack, the motor controller and the driving motor cannot be studied.
Disclosure of Invention
Aiming at the defects of the existing electric automobile testing system, the invention aims to provide a testing system and a testing method for the energy flow of an electric automobile power assembly, which can test the efficiency of a power battery pack, a motor controller and a driving motor under different temperatures and operation conditions, and the testing system can be operated as a whole and can test the energy flow of the system.
In order to solve the problems, the invention adopts the following technical scheme:
an electric automobile power assembly energy flow test system comprises a power assembly system, a thermal management system and a data acquisition system.
The power assembly system is a tested system and comprises a power battery pack, a motor controller and a driving motor, wherein the power battery pack is electrically connected with the motor controller, the motor controller is electrically connected with the driving motor, and the driving motor outputs mechanical work outwards through a coupler.
The heat management system has the functions that each part of the power assembly works at a target temperature and comprises a first liquid flow heat exchange system, a second liquid flow heat exchange system and a third liquid flow heat exchange system, each liquid flow heat exchange system comprises a constant temperature water tank, a water pump, a filter, a valve and a pipeline, the constant temperature water tank, the water pump and the filter are sequentially connected through the pipeline, and the pipeline is provided with the valve for controlling flow; the inlet of the constant temperature water tank and the outlet of the filter are respectively connected with each component in the power assembly system to form a loop, the first liquid flow heat exchange system is connected with the power battery pack, the second liquid flow heat exchange system is connected with the motor controller, and the third liquid flow heat exchange system is connected with the driving motor through a pipeline.
The data acquisition system is used for acquiring and recording electric parameters, mechanical quantities and temperature quantities and comprises an NI controller, a temperature sensor, a flow sensor, a power analyzer, a dynamometer controller and an upper computer, wherein the upper computer is connected with the NI controller, the flow sensor is arranged on an outlet pipeline of a filter of each liquid flow heat exchange system, and the temperature sensor is used for measuring the characteristic temperature of the power assembly system; one phase of the power analyzer is connected with the output end of the power battery pack, the other three phases of the power analyzer are respectively connected to the output end of the motor controller, and the dynamometer is coaxially connected with the driving motor; the dynamometer is electrically connected with the dynamometer controller; the NI controller is respectively connected with the temperature sensor, the flow sensor, the power analyzer, the dynamometer controller and the motor controller.
For the data acquisition system, the upper computer sends a signal to the NI controller, the NI controller sends a control signal to the corresponding component, and meanwhile receives a signal from the corresponding component and transmits the signal to the upper computer, for example, the NI controller receives signals of a temperature sensor and a flow sensor in the thermal management system, and if the temperature deviates from a set value, the NI controller sends a control signal to the constant-temperature water tank controller and a valve so as to control the temperature and the flow rate of the cooling liquid and enable the temperature to be close to the set value; the NI controller sends out a signal to the dynamometer controller, loads corresponding resistance moment to the driving motor, and transmits a measurement signal received by the dynamometer controller to the upper computer; and the NI controller sends out a control signal to the power analyzer, acquires the electric parameter data in real time and transmits the acquired data to the upper computer.
The characteristic temperature of the power assembly system is the inlet temperature of the heat exchange medium of each component.
Preferably, for the power assembly system, the characteristic temperature is an average temperature of characteristic points of the power battery pack, the motor controller and the driving motor, wherein the characteristic points of the power battery pack are positioned on the outer surface of the power battery unit and comprise an electrode, a middle part of the battery and a bottom part of the battery; the characteristic points of the motor controller are near the IGBT module and the diode module; the characteristic point of the driving motor is near the motor stator winding.
Preferably, the power assembly energy flow testing system of the electric automobile further comprises a power supply system, the power supply system comprises a battery charge-discharge instrument, the battery charge-discharge instrument is connected with the power battery pack, and the power battery pack can be independently tested in the connection mode.
Preferably, the power assembly energy flow testing system of the electric automobile further comprises a power supply system, the power supply system comprises a power supply simulator, the power supply simulator is connected with the motor controller and the driving motor, and the motor controller or the driving motor can be independently tested in the connection mode.
The invention also discloses a testing method of the energy flow testing system of the electric automobile power assembly, which comprises the following steps:
(1) The drive motor is powered by a power battery pack, which is charged to soc=1.
(2) The upper computer sends a control signal to the NI controller and then to the dynamometer controller, so that the dynamometer loads corresponding resistance moment to the driving motor.
(3) The upper computer sends out control signals to the NI controller and then to the motor controller, so that the driving motor works under the working condition of setting torque and rotating speed and the power battery pack works under the working condition of setting discharging current.
(4) The upper computer sends control signals to the NI controller and then to the thermal management system to control the power battery pack, the motor controller and the driving motor to be at respective target temperatures.
(5) And after the system reaches heat balance, carrying out data measurement, and determining the energy flow and the energy loss of the power assembly of the electric automobile under different temperatures and working conditions.
The test system and the test method can test the energy flow of the power assembly system and the loss condition of each component when the power assembly of the electric automobile operates under different working conditions at different temperatures, and the obtained experimental data can be used for carrying out matching optimization on the power assembly of the electric automobile, so that the power battery pack and the driving motor can operate in a high-efficiency state under most working conditions; the experimental data can be used for obtaining the optimal working temperatures of the power battery, the motor controller and the driving motor, and optimizing the power assembly thermal management system.
The foregoing description is only an overview of the present invention, and is presented in terms of examples of the present invention and the accompanying drawings for more clearly showing the technical means of the present invention and being able to be implemented according to the content of the specification.
Drawings
FIG. 1 is a schematic diagram of a powertrain power flow testing system.
Fig. 2 is a schematic diagram of a liquid flow heat exchange system.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1, the electric vehicle powertrain energy flow test system includes a powertrain system, a thermal management system, and a data acquisition system.
The power assembly system comprises a power battery pack, a motor controller and a driving motor, wherein the power battery pack is electrically connected with the motor controller, the motor controller is electrically connected with the driving motor, and the driving motor outputs mechanical work outwards through a coupler.
The heat management system comprises a first liquid flow heat exchange system, a second liquid flow heat exchange system and a third liquid flow heat exchange system, each liquid flow heat exchange system comprises a constant temperature water tank, a water pump, a filter, a valve and a pipeline, the constant temperature water tank, the water pump and the filter are sequentially connected through the pipeline, and the pipeline is provided with the valve for controlling the flow; the inlet of the constant temperature water tank and the outlet of the filter are respectively connected with each component in the power assembly system to form a loop, the first liquid flow heat exchange system is connected with the power battery pack, the second liquid flow heat exchange system is connected with the motor controller, and the third liquid flow heat exchange system is connected with the driving motor through a pipeline.
The data acquisition system comprises an NI controller, a temperature sensor, a flow sensor, a power analyzer, a dynamometer controller and an upper computer, wherein the upper computer is connected with the NI controller, the flow sensor is arranged on an outlet pipeline of a filter of each liquid flow heat exchange system, and the temperature sensor is used for measuring the characteristic temperature of the power assembly system; one phase of the power analyzer is connected with the output end of the power battery pack, the other three phases of the power analyzer are respectively connected to the output end of the motor controller, and the dynamometer is coaxially connected with the driving motor; the dynamometer is electrically connected with the dynamometer controller; the NI controller is respectively connected with the temperature sensor, the flow sensor, the power analyzer, the dynamometer controller and the motor controller.
For the power assembly system, the output end of the power battery pack is connected to the input end of the motor controller by adopting a cable, the output end of the motor controller is connected to the input end of the driving motor by adopting a cable, the output end of the driving motor is connected to the input end of the dynamometer by a coupler, and the torque rotation speed sensor is connected between the output end of the driving motor and the input end of the dynamometer.
For the heat management system, the specific structure of the liquid flow heat exchange system is shown in fig. 2, the flowing direction of the cooling liquid is shown by an arrow in the drawing, a dotted line in the drawing is a control signal, and the heat exchange medium is a mixture of 50% water and 50% glycol, so that the heat exchange medium can still work normally at low temperature, and can flow through a constant temperature water tank, a water pump and a filter in sequence, then reach a heat exchange part and exchange heat, flow back to the constant temperature water tank after the heat exchange is completed, exchange heat with a heat source in the constant temperature water tank to stabilize the temperature, and the liquid flow heat exchange system can cool or heat certain parts of the power assembly to achieve the aim of controlling the temperature of each part of the power assembly.
Aiming at the data acquisition system, the upper computer sends a signal to the NI controller, the NI controller sends a control signal to the corresponding component, and meanwhile, the NI controller receives the signal from the corresponding component and transmits the signal to the upper computer, for example, the NI controller receives signals of a temperature sensor and a flow sensor in the thermal management system, and if the temperature deviates from a set value, the NI controller sends the control signal to the constant-temperature water tank controller and the valve so as to control the temperature and the flow rate of the cooling liquid and enable the temperature to be close to the set value; the NI controller sends out a signal to the dynamometer controller, carries out resistance loading on the driving motor, and transmits a measurement signal received by the dynamometer controller to the upper computer; and the NI controller sends out a control signal to the power analyzer, acquires the electric parameter data in real time and transmits the acquired data to the upper computer.
The NI controller comprises an NI compact RIO base, an analog output board card, an analog input board card, a temperature acquisition board card and a high-speed CAN module, wherein the analog output board card is connected with the liquid flow heat exchange system controller and sends a control signal to the liquid flow heat exchange system controller; the analog input board card receives signals of the sensor, such as signals of the flow sensor, so as to obtain the flow rate of the liquid flow heat exchange system; the temperature acquisition board receives signals of the temperature sensor to obtain the temperature of a heat exchange medium of the liquid flow heat exchange system (or obtain the temperature of each measuring point in each part of the power assembly); the high-speed CAN module sends a control signal to the motor controller to control the motor to run under a set working condition.
The invention also discloses a method for testing the energy flow of the power assembly of the electric automobile, which comprises the following specific steps.
(1) The power battery pack, the motor controller and the driving motor are sequentially connected, and the driving motor is powered by the power battery pack.
(2) The power battery pack is charged to SOC=1 according to a special rule provided by a manufacturer, and if the manufacturer does not provide a charger, the power battery pack is charged according to national standard QC/T743-2006, so that the initial experimental conditions are ensured to be the same.
(3) The upper computer sends a control signal to the NI controller and then to the dynamometer controller, so that the dynamometer loads corresponding resistance moment to the driving motor.
(4) The upper computer sends a control signal to the NI controller and then to the motor controller, so that the driving motor works under the set torque and rotation speed, and the power battery pack works under the set discharging current working condition.
(5) The upper computer and the NI controller receive signals of a temperature sensor in the thermal management system, and control the temperature and the flow rate of a heat exchange medium in the thermal management system through a closed loop, so that the power battery pack, the motor controller and the driving motor are controlled to be at respective target temperatures.
(6) And when the system reaches heat balance and the SOC of the power battery pack is a fixed value, carrying out data measurement, and determining the energy flow and the energy loss of the power assembly of the electric automobile under different temperatures and working conditions.
(7) And (5) changing the temperature and the operation condition of the power train, and repeating the steps (2) - (6).
Claims (5)
1. An energy flow test system of an electric automobile power assembly is characterized by comprising a power assembly system, a thermal management system and a data acquisition system,
the power assembly system comprises a power battery pack, a motor controller and a driving motor, wherein the power battery pack is electrically connected with the motor controller, the motor controller is electrically connected with the driving motor, and the driving motor outputs mechanical work outwards through a coupler;
the heat management system comprises a first liquid flow heat exchange system, a second liquid flow heat exchange system and a third liquid flow heat exchange system, each liquid flow heat exchange system comprises a constant temperature water tank, a water pump, a filter, a valve and a pipeline, the constant temperature water tank, the water pump and the filter are sequentially connected through the pipeline, and the pipeline is provided with the valve for controlling the flow; the inlet of the constant temperature water tank and the outlet of the filter are respectively connected with each component in the power assembly system to form a loop, the first liquid flow heat exchange system is connected with the power battery pack, the second liquid flow heat exchange system is connected with the motor controller, and the third liquid flow heat exchange system is connected with the driving motor through a pipeline;
the data acquisition system comprises an NI controller, a temperature sensor, a flow sensor, a power analyzer, a dynamometer controller and an upper computer, wherein the upper computer is connected with the NI controller, the flow sensor is arranged on an outlet pipeline of a filter of each liquid flow heat exchange system, and the temperature sensor is used for measuring the characteristic temperature of the power assembly system; one phase of the power analyzer is connected with the output end of the power battery pack, the other three phases of the power analyzer are respectively connected to the output end of the motor controller, and the dynamometer is coaxially connected with the driving motor; the dynamometer is electrically connected with the dynamometer controller; the NI controller is respectively connected with the temperature sensor, the flow sensor, the power analyzer, the dynamometer controller and the motor controller;
the temperature sensor is arranged at characteristic points of the power battery pack, the motor controller and the driving motor and is used for measuring characteristic temperature, and the characteristic points of the power battery pack comprise a power battery electrode, a battery middle part and a battery bottom; the characteristic points of the motor controller are an IGBT module and a diode module; the characteristic point of the driving motor is a motor stator winding.
2. The power train energy flow test system of an electric vehicle of claim 1, wherein the temperature sensor is disposed on an outlet conduit of a filter of each flow heat exchange system.
3. The power flow test system of the electric automobile power assembly of claim 1, further comprising a power supply system, wherein the power supply system comprises a battery charge-discharge meter, and the battery charge-discharge meter is connected with the power battery pack.
4. The power flow test system of the electric automobile power assembly of claim 1, further comprising a power supply system, wherein the power supply system comprises a power supply simulator, and the power supply simulator is connected with the motor controller and the driving motor.
5. A test method based on the electric automobile power assembly energy flow test system of claim 1, characterized in that it comprises the following steps:
(1) The driving motor is powered by a power battery pack, and the power battery pack is charged to soc=1;
(2) The upper computer sends a control signal to the NI controller and then to the dynamometer controller, so that the dynamometer loads corresponding resistance moment to the driving motor;
(3) The upper computer sends a control signal to the NI controller and then to the motor controller, so that the driving motor works under the working condition of setting torque and rotating speed and the power battery pack works under the working condition of setting discharge current;
(4) The upper computer sends a control signal to the NI controller and then to the thermal management system to control the power battery pack, the motor controller and the driving motor to be at respective target temperatures;
(5) And after the system reaches heat balance, carrying out data measurement, and determining the energy flow and the energy loss of the power assembly of the electric automobile under different temperatures and working conditions.
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| 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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| 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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| CN107505572B true CN107505572B (en) | 2023-07-18 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109298346B (en) * | 2018-10-09 | 2019-10-01 | 浙江大学 | A kind of three electric system health status in-circuit diagnostic system of new-energy automobile and diagnostic 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 |
| CN109781175B (en) * | 2018-12-26 | 2020-11-24 | 中汽研（天津）汽车工程研究院有限公司 | Device and method for decoupling energy utilization rate of power assembly for reproducing whole vehicle working condition |
| CN109828176B (en) * | 2019-03-14 | 2021-08-24 | 武汉理工大学 | High-low temperature cycle test system for motor battery of new energy automobile |
| 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 |
| CN112362209B (en) * | 2020-10-20 | 2022-03-25 | 中国航发湖南动力机械研究所 | Stator assembly for hydraulic dynamometer and stator ring machining method |
| 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 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101427352A (en) * | 2005-03-16 | 2009-05-06 | 高级技术材料公司 | Method and apparatus for monitoring plasma conditions in an etching plasma processing facility |
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| CN102230847B (en) * | 2011-04-01 | 2014-04-09 | 浙江大学 | Test device for engine thermal management system |
| CN103674563B (en) * | 2012-08-31 | 2015-12-02 | 重庆长安汽车股份有限公司 | A kind of integration test method for car load Energy Flow Analysis |
| CN103925993A (en) * | 2014-05-04 | 2014-07-16 | 湘电集团有限公司 | Detection device and method of dish-type solar energy focal spot transient energy density |
| CN105891631A (en) * | 2016-04-03 | 2016-08-24 | 北京工业大学 | Electric vehicle three-system integrated test platform |
| CN205930310U (en) * | 2016-05-10 | 2017-02-08 | 比亚迪股份有限公司 | Electric automobile thermal management system and electric automobile |
| CN106646020B (en) * | 2016-10-11 | 2019-11-22 | 清华大学 | Multi-functional dynamic test system based on battery management |
-
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| CN101427352A (en) * | 2005-03-16 | 2009-05-06 | 高级技术材料公司 | Method and apparatus for monitoring plasma conditions in an etching plasma processing facility |
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