CN110426631A - The compound test device of new-energy automobile dynamical system and test method - Google Patents
The compound test device of new-energy automobile dynamical system and test method Download PDFInfo
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- CN110426631A CN110426631A CN201910726729.XA CN201910726729A CN110426631A CN 110426631 A CN110426631 A CN 110426631A CN 201910726729 A CN201910726729 A CN 201910726729A CN 110426631 A CN110426631 A CN 110426631A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/007—Subject matter not provided for in other groups of this subclass by applying a load, e.g. for resistance or wear testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/008—Subject matter not provided for in other groups of this subclass by doing functionality tests
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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
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- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
A kind of compound test device of new-energy automobile dynamical system and test method.Traditional real steering vectors are difficult to complete a variety of pilot projects, dynamical system testboard bay can only test job under lower state, can not achieve dynamic varying load, variable working condition test.Present invention composition includes: gearbox (3), gearbox both ends pass through shaft coupling respectively and connect with torque sensor A(7), torque sensor A is connect by shaft coupling (6) with magnetic powder brake (4), magnetic powder brake is connect by conducting wire with excitation controller (5), gearbox passes through clutch A(8) it is connect with main test motor (9), main test motor is connect by conducting wire with load transfer switch (19), load transfer switch passes through conducting wire and electric machine controller A(18 respectively), ohmic load (16) connection, electric machine controller A, electric machine controller B(13) it is connect respectively by conducting wire with DC power supply (14).The present invention is used for the compound test device of new-energy automobile dynamical system.
Description
Technical field:
The present invention relates to new-energy automobile fields, and in particular to a kind of compound test device of new-energy automobile dynamical system and survey
Method for testing.
Background technique:
Dynamical system is the key components of new-energy automobile, and in automobilism, driving force is exactly defeated by dynamical system
Out, the quality of performance has very big influence to the performance of automobile entirety.When designing new-energy automobile, power matching is weight
The step of wanting, the design of motor is key factor therein.With the development of new-energy automobile, to vehicle dynamic quality, economy
Property and comfort requirement be continuously improved, increasingly higher demands are proposed to power system performance and quality index, design is opened
More and more comprehensive to the test of its properties when starting Force system, the requirement of accuracy and the degree of automation is also higher and higher；
The test method of dynamical system is broadly divided into two kinds: the first is to be mounted on dynamical system on automobile to do experiment and remember
Data in record test, the restriction of many factors such as tested person environment, test condition, real steering vectors are difficult to complete a variety of tests
Project；Second is the parameter recorded under steady state condition on dynamical system testboard bay, but general test macro can only
Work can not achieve dynamic varying load, variable working condition test under lower state；In motion, operating condition is that complexity is more to automobile
Become, including acceleration, deceleration, upward slope, descending etc., automobile will not be always maintained at the same operating status, dynamical system is with vapour
The traveling of vehicle is in always in the state of a torque, revolving speed, power time-varying, therefore the above method has not adapted to to new energy
Research of the source automobile under actual operating mode and dynamic operation condition；
Summary of the invention:
The object of the present invention is to provide a kind of compound test device of new-energy automobile dynamical system and test methods, can complete
The test of dynamical system electric drive mode and the test of braking energy feedback power generation performance.
Above-mentioned purpose is realized by following technical scheme:
A kind of compound test device of new-energy automobile dynamical system, composition includes: gearbox, the gearbox both ends point
Not Tong Guo shaft coupling connect with torque sensor A, the torque sensor A is connect by shaft coupling with magnetic powder brake, institute
The magnetic powder brake stated is connect by conducting wire with excitation controller, and the gearbox is connected by clutch A and main test motor
It connects, the main test motor is connect by conducting wire with load transfer switch, and the load transfer switch passes through conducting wire and electricity respectively
Machine controller A, ohmic load connection, the electric machine controller A, electric machine controller B pass through conducting wire respectively and DC power supply connects
It connects, the DC power supply connects power grid.
The compound test device of new-energy automobile dynamical system, the electric machine controller A, the motor control
Device B processed, the load transfer switch, the ohmic load are connect with CAN bus respectively, and the electric machine controller B passes through
Conducting wire is connect with stand-by motor, and the stand-by motor is connect by shaft coupling with torque sensor B, the torque sensor
B is connect by shaft coupling with clutch B, and the clutch B is connect with the main test motor.
The compound test device of new-energy automobile dynamical system, the CAN bus are connect with CAN analyzer,
The CAN analyzer is connect with industrial personal computer.
A kind of compound test device of new-energy automobile dynamical system and test method, this method comprises the following steps: first
Industrial personal computer was switched using CAN bus communication protocol by CAN analyzer and electric machine controller A, electric machine controller B, load before this
Device, ohmic load are communicated, industrial personal computer real-time display motor speed, torque, voltage, electric current, power, temperature information, are adjusted
Negative torque provided by loading switches according to requirement of experiment and loads, resistive load values are arranged automatically, control the engagement of clutch with
Separation, real-time display CAN bus transmission data information, have fault diagnosis and warning function, and scheme, sheet form storage number
According to；
The test scope and method of the compound test device:
(1) accelerating ability is tested:
Industrial personal computer automatically generates the floor data of accelerator, according to operating condition according to the acceleration and max. speed that set
Data control main test motor operation, and industry control machine control system substitutes into the actual running speed of main test motor in resistance equation
Suffered load torque and bearing power in vehicle travel process are obtained, the control mode control load fortune selected according to tester
It goes, by this method the accelerator of simulating vehicle；
(2) upward slope performance test
Industrial personal computer automatically generates the floor data of upward slope process according to the slope road angle set, and main test motor exports a perseverance
Determine revolving speed simulated automotive stabilizing speed, the running resistance that automobile is subject to is calculated by automobilism kinetic equation formula, substitutes into resistance side
Suffered load torque and bearing power in vehicle travel process are obtained in journey, are controlled according to the control mode that tester selectes negative
Carrying row, by this method the upward slope process of simulating vehicle；
(3) state of cyclic operation is tested
A first presetting driving cycle, i.e., the speed at each moment be it is known, it is given as speed, and needed for per a moment
Resistance is given by the speed of test platform and vehicle dynamical equation calculates, at this point, the movement speed of vehicle setting be decided by it is selected
Driving cycle, speed is converted to the tach signal of power motor, as the rotational speed setup of dynamical system, while according to setting
Driving cycle and vehicle dynamical equation, calculate needed on test platform simulation resistance, as the torque reference of system, and
Afterwards according to this speed-time graph circular flow.
The utility model has the advantages that
1. structure and method of the invention is the spies such as multifactor, non-linear in view of new-energy automobile test bench of power system
Point devises a kind of compound test device of dynamical system, and it is imitative which can provide a dynamic for the research and development of dynamical system
Electromagnetic system power or the negative torque simulated roadway load resistance of motor can be used in true environment, test macro, and has braking energy and return
Test function is presented, which has great importance to the research and development of new-energy automobile.
2. structure of the invention can complete the test of dynamical system electric drive mode and braking energy feedback power generation performance is surveyed
Examination；When main test motor works in electric model, magnetic powder brake may be selected as load, due to adjusting exciting current
Its braking moment is controlled, the simulation to operating conditions such as acceleration, deceleration, upward slope, descendings can be completed, also the survey of achievable state of cyclic operation
Examination can complete left and right sidesing driving wheel and travel under different road surface to move if two magnetic powder cluth exciting currents of setting are different
The performance test of Force system.
3. stand-by motor also may be selected as load in structure of the invention, two motors are in drag mode formula, auxiliary at this time
The electric energy of sending can be fed back to power grid by DC power supply by motor, this operating mode uses energy feedback technology, be realized
The closed loop of energy uses.
It, can be by electric machine controller by the three-phase alternating current of sending 4. main test motor of the invention works in power generation mode
Electricity is changed into direct current, feeds back to power grid by DC power supply, it is possible to use the survey of power points durability is determined in ohmic load, completion
Examination.
5. the present invention is connect with CAN-L low data line by resistance using CAN-H high position data line, CAN can be made total
Line is insensitive to electromagnetic interference.
Detailed description of the invention:
Attached drawing 1 is structural schematic diagram of the invention.
Attached drawing 2 is one of energy flow mode schematic diagram of the present invention.
Attached drawing 3 is the two of energy flow mode schematic diagram of the present invention.
Specific embodiment:
Embodiment 1:
A kind of compound test device of new-energy automobile dynamical system, composition includes: gearbox 3, the gearbox both ends
It is connect respectively by shaft coupling with torque sensor A7, the torque sensor A is connected by shaft coupling 6 and magnetic powder brake 4
It connects, the magnetic powder brake is connect by conducting wire with excitation controller 5, and the gearbox passes through clutch A8 and main test
Motor 9 connects, and the main test motor is connect by conducting wire with load transfer switch 19, and the load transfer switch passes through respectively
Conducting wire is connect with electric machine controller A18, ohmic load 16, and the electric machine controller A, electric machine controller B13 pass through respectively to be led
Line is connect with DC power supply 14, and the DC power supply connects power grid 15.
Embodiment 2:
It is the electric machine controller A, described according to the compound test device of new-energy automobile dynamical system described in embodiment 1
Electric machine controller B, the load transfer switch, the ohmic load connect respectively with CAN bus 17, the motor control
Device B processed is connect by conducting wire with stand-by motor 12, and the stand-by motor is connect by shaft coupling with torque sensor B11, institute
The torque sensor B stated is connect by shaft coupling with clutch B10, and the clutch B is connect with the main test motor.
Embodiment 3:
According to the compound test device of new-energy automobile dynamical system described in embodiment 1, the CAN bus and CAN are analyzed
Instrument 2 connects, and the CAN analyzer is connect with industrial personal computer 1.
Embodiment 4:
A kind of test method using the compound test device of new-energy automobile dynamical system described in embodiment 1-3, this method
It is: is that industrial personal computer uses CAN bus communication protocol to pass through CAN analyzer and electric machine controller A, electric machine controller B, load first
Switch, ohmic load are communicated, industrial personal computer real-time display motor speed, torque, voltage, electric current, power, temperature information,
Negative torque provided by loading is adjusted, is switched according to requirement of experiment and is loaded, resistive load values are set automatically, control nibbling for clutch
Close and separate, the data information of real-time display CAN bus transmission has fault diagnosis and warning function, and to scheme, sheet form deposits
Store up data；
The test scope and method of the compound test device:
(1) accelerating ability is tested:
Industrial personal computer automatically generates the floor data of accelerator, according to operating condition according to the acceleration and max. speed that set
Data control main test motor operation, and industry control machine control system substitutes into the actual running speed of main test motor in resistance equation
Suffered load torque and bearing power in vehicle travel process are obtained, the control mode control load fortune selected according to tester
It goes, by this method the accelerator of simulating vehicle；
(2) upward slope performance test
Industrial personal computer automatically generates the floor data of upward slope process according to the slope road angle set, and main test motor exports a perseverance
Determine revolving speed simulated automotive stabilizing speed, the running resistance that automobile is subject to is calculated by automobilism kinetic equation formula, substitutes into resistance side
Suffered load torque and bearing power in vehicle travel process are obtained in journey, are controlled according to the control mode that tester selectes negative
Carrying row, by this method the upward slope process of simulating vehicle；
(3) state of cyclic operation is tested
A first presetting driving cycle, i.e., the speed at each moment be it is known, it is given as speed, and needed for per a moment
Resistance is given by the speed of test platform and vehicle dynamical equation calculates, at this point, the movement speed of vehicle setting be decided by it is selected
Driving cycle, speed is converted to the tach signal of power motor, as the rotational speed setup of dynamical system, while according to setting
Driving cycle and vehicle dynamical equation, calculate needed on test platform simulation resistance, as the torque reference of system, and
Afterwards according to this speed-time graph circular flow；
The main test motor, using left and right sides twin shaft output form, and the stand-by motor, the two is taken to dragging shape
Formula connection, the system can complete the detection of the electronic and power generation performance to main test motor,
(1) when main test motor works in motoring condition, according to magnetic powder brake as loading, then test macro is by direct current
Power supply, electric machine controller A, load transfer switch, main test motor, clutch A, gearbox, torque sensor A, magnetic powder brake,
Excitation controller composition, being needed at this time through industrial personal computer setting clutch A is meshing state, clutch B is discrete state；Motor control
Direct current is changed into three-phase alternating current by device A processed, based on test electric machine with energy；Motor control calculation can be arranged in industrial personal computer
Method, such as the control of Direct Torque Control, weak magnetic；The exciting current of magnetic powder brake is adjusted by excitation controller, so that it may adjust
Load torque is saved, and then completes the simulation to the operating conditions such as acceleration, anxious deceleration, upward slope, descending；If two magnetic powder cluth excitations are arranged
Electric current is different, then can complete the performance test that left and right sidesing driving wheel travels on dynamical system under different road surface.
(2) when main test motor works in motoring condition, according to stand-by motor as loading, then test macro is by straight
Galvanic electricity source, electric machine controller A, load transfer switch, main test motor, clutch B, torque sensor B, stand-by motor, motor control
Device B composition processed, being needed at this time through industrial personal computer setting clutch A is discrete state, clutch B is meshing state, load transfer switch
Motor is tested based on need to being arranged to connect with electric machine controller A；Main test motor works in motoring condition, stand-by motor work at this time
In generating state, the electric energy of sending can be fed back to power grid by DC power supply by stand-by motor, this operating mode uses energy
Feedback Technology, the closed loop for realizing energy uses, shown in the following attached drawing 2 of energy flow mode.
(3) when main test motor works in generating state, load model is arranged according to test request, if load transfer switch
Based on setting test motor connect with electric machine controller A, then test macro by DC power supply, electric machine controller B, stand-by motor,
Torque sensor B, clutch B, main test motor, load transfer switch, electric machine controller A composition, are arranged clutch by industrial personal computer
Device A is discrete state, clutch B is meshing state.Stand-by motor works in motoring condition at this time, and main test motor works in hair
The electric energy of sending can be fed back to power grid by DC power supply by electricity condition, main test motor, realize that the closed loop of energy uses；The work
The power generation performance of motor when operation mode is mainly used for testing automobile brake energy feedback, shown in the following attached drawing 3 of energy flow mode；
(4) when main test motor works in generating state, if load transfer switch is set as motor 1 and connect with ohmic load,
Test macro is cut by DC power supply, electric machine controller B, stand-by motor, torque sensor B, clutch B, main test motor, load
Parallel operation, ohmic load composition, being needed at this time through industrial personal computer setting clutch A is discrete state, clutch B is meshing state.It should
Three-phase equilibrium type ohmic load is used in experimental rig, has linear regulating function, and resistance value is arranged by industrial personal computer, main test electricity
Machine outlet side can be directly accessed ac input end, which meets the requirement of dynamical system peak power output.Generator
When invariablenes turning speed, it is capable of the three-phase alternating current of output voltage stabilization, by changing ohmic load resistance value, i.e., changeable generator is defeated
Current value out, load resistor value is bigger, and output electric current is smaller, and generated output power is smaller at this time；Load resistor value reduces, hair
Motor exports electric current and increases, and output power increases；Therefore, it can complete to determine power points durability test, energy by ohmic load
It is enough that dynamical system power generation characteristics are tested comprehensively.
Claims (4)
1. a kind of compound test device of new-energy automobile dynamical system, composition includes: gearbox, it is characterized in that: described
Gearbox both ends pass through shaft coupling respectively and connect with torque sensor A, and the torque sensor A passes through shaft coupling and magnetic powder system
Dynamic device connection, the magnetic powder brake are connect by conducting wire with excitation controller, and the gearbox passes through clutch A and master
Motor connection is tested, the main test motor is connect by conducting wire with load transfer switch, and the load transfer switch is led to respectively
Conducting wire is crossed to connect with electric machine controller A, ohmic load, the electric machine controller A, electric machine controller B pass through respectively conducting wire with
DC power supply connection, the DC power supply connect power grid.
2. the compound test device of new-energy automobile dynamical system according to claim 1, it is characterized in that: the motor
Controller A, the electric machine controller B, the load transfer switch, the ohmic load are connect with CAN bus respectively, institute
The electric machine controller B stated is connect by conducting wire with stand-by motor, and the stand-by motor is connected by shaft coupling and torque sensor B
It connects, the torque sensor B is connect by shaft coupling with clutch B, and the clutch B and the main test motor connect
It connects.
3. the compound test device of new-energy automobile dynamical system according to claim 2, it is characterized in that: the CAN
Bus is connect with CAN analyzer, and the CAN analyzer is connect with industrial personal computer.
4. a kind of test side using the compound test device of new-energy automobile dynamical system described in one of claim 1-3
Method, it is characterized in that: this method comprises the following steps:
It is that industrial personal computer uses CAN bus communication protocol by CAN analyzer and electric machine controller A, electric machine controller B, bears first
Carry switch, ohmic load is communicated, industrial personal computer real-time display motor speed, torque, voltage, electric current, power, temperature letter
Breath adjusts negative torque provided by loading, and is switched according to requirement of experiment and is loaded, and resistive load values are arranged automatically, controls clutch
Engagement with separate, real-time display CAN bus transmission data information, have fault diagnosis and warning function, and to scheme, table shape
Formula storing data；
The test scope and method of the compound test device:
(1) accelerating ability is tested:
Industrial personal computer automatically generates the floor data of accelerator, according to operating condition according to the acceleration and max. speed that set
Data control main test motor operation, and industry control machine control system substitutes into the actual running speed of main test motor in resistance equation
Suffered load torque and bearing power in vehicle travel process are obtained, the control mode control load fortune selected according to tester
It goes, by this method the accelerator of simulating vehicle；
(2) upward slope performance test
Industrial personal computer automatically generates the floor data of upward slope process according to the slope road angle set, and main test motor exports a perseverance
Determine revolving speed simulated automotive stabilizing speed, the running resistance that automobile is subject to is calculated by automobilism kinetic equation formula, substitutes into resistance side
Suffered load torque and bearing power in vehicle travel process are obtained in journey, are controlled according to the control mode that tester selectes negative
Carrying row, by this method the upward slope process of simulating vehicle；
(3) state of cyclic operation is tested
A first presetting driving cycle, i.e., the speed at each moment be it is known, it is given as speed, and needed for per a moment
Resistance is given by the speed of test platform and vehicle dynamical equation calculates, at this point, the movement speed of vehicle setting be decided by it is selected
Driving cycle, speed is converted to the tach signal of power motor, as the rotational speed setup of dynamical system, while according to setting
Driving cycle and vehicle dynamical equation, calculate needed on test platform simulation resistance, as the torque reference of system, and
Afterwards according to this speed-time graph circular flow.
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| CN113310708A (en) * | 2021-06-02 | 2021-08-27 | 深圳亿昇动力科技有限公司 | Endurance test method and device for actuator, computer program product and storage medium |
| CN113310708B (en) * | 2021-06-02 | 2024-07-30 | 深圳亿昇动力科技有限公司 | Method, apparatus, computer program product and storage medium for testing durability of actuator |
| CN113682249A (en) * | 2021-08-30 | 2021-11-23 | 杭叉集团股份有限公司 | Charging management system for industrial vehicle lithium battery assembly |
| CN113682249B (en) * | 2021-08-30 | 2023-07-25 | 杭叉集团股份有限公司 | Industrial vehicle lithium battery assembly charging management system |
| CN117572273A (en) * | 2023-10-20 | 2024-02-20 | 重庆福瑞斯自动化设备股份有限公司 | EOL electrically driven test line |
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| CN110426631B (en) | 2022-02-22 |
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