CN107957341A - A kind of hybrid vehicle test-bed and test method based on buncher - Google Patents

A kind of hybrid vehicle test-bed and test method based on buncher Download PDF

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Publication number
CN107957341A
CN107957341A CN201810043086.4A CN201810043086A CN107957341A CN 107957341 A CN107957341 A CN 107957341A CN 201810043086 A CN201810043086 A CN 201810043086A CN 107957341 A CN107957341 A CN 107957341A
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China
Prior art keywords
control
test
speed
ratio
buncher
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CN201810043086.4A
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Inventor
曾小华
董兵兵
李广含
宋大凤
李立鑫
肖力军
孙可华
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Jilin University
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Jilin University
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Priority to CN201810043086.4A priority Critical patent/CN107957341A/en
Publication of CN107957341A publication Critical patent/CN107957341A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00Testing of machine parts
    • G01M13/02Gearings; Transmission mechanisms
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00Testing of vehicles
    • G01M17/007Wheeled or endless-tracked vehicles

Abstract

The invention discloses a kind of hybrid vehicle test-bed and test method based on buncher, the test-bed includes power source, buncher, dynamometer machine, control system and pilot control part.The power source part includes engine, wet clutch, power generation/electromotion integrated motor ISG and storage battery;The buncher part includes driving wheel, driven wheel, metal tape, oil pump, pressure-regulating valve, speed-ratio regulation valve;The control system part is made of engine controller EMS, electric machine controller MCU, gearbox controller TCU, battery management system BMS, entire car controller, Dynamometer Control System, rapid control prototyping dSPACE systems and host computer.Test-bed of the present invention not only can be mixed the working condition measurement and control algorithm validation of power vehicle, and can be by disconnecting wet clutch, using motor as power source, the test such as governor control characteristics, clamping force control proof of algorithm of buncher is carried out.

Description

A kind of hybrid vehicle test-bed and test method based on buncher
Technical field
The present invention relates to a kind of test-bed and test method of simulated automotive actual working state, more precisely, this Invention is related to a kind of hybrid vehicle test-bed and test method based on buncher.
Background technology
Energy shortage and the two big major issues that environmental pollution is that automobile industry development has to consider, Technology of Hybrid Electric Vehicle The shortcomings of high traditional combustion engine Fuel consumption rate, discharge difference can effectively be evaded, it is fuel-engined vehicle energy-saving and emission-reduction, realizes skill One of main path of art upgrading, quickly grows in recent years.Hybrid electric drive system has three kinds of series, parallel, series-parallel connection at present Form, wherein parallel drive system is mainstream configuration.On the other hand, buncher CVT has speed than the spy of consecutive variations Property, the rotating speed of power source can be made independently of the change of speed.Therefore, CVT parallel connection type hybrid power systems are current comparatively ideal one Kind hybrid vehicle configuration scheme, it is necessary to carry out the test of vehicle and component capabilities to it.Ground in view of real train test It is higher to send out cycle length, cost, and the problem that appliance computer emulation technology carries out hybrid power system dynamic analog is CVT hydraulic pressure Control system characteristic is difficult to accurately simulate, so having obvious advantage based on bench test in kind.Chinese utility model patent CN204439358U provides a kind of hybrid power automobile power assembly testing stand, including power unit, buncher, differential Device, electric dynamometer, Dynamometer Control System, battery simulator, control unit, rapid control prototyping and power analyzer.Should Patent is not directed to the performance tests such as the governor control characteristics of buncher, bearing capacity, limited efficacy.
The content of the invention
In order to solve above-mentioned technical problem of the prior art, it is an object of the invention to provide one kind to be based on variable speed The hybrid vehicle test-bed and test method of device, the experiment of set vehicle performance and buncher governor control characteristics, clamp The tests such as power control.
In order to solve the above technical problems, the present invention adopts the following technical scheme that realization:
A kind of hybrid vehicle test-bed based on buncher, including power source, buncher, measurement of power Machine, control system and pilot control part.
The power source part is by engine, wet clutch, power generation-electromotion integrated motor ISG and storage battery group Into.
The buncher part is by driving wheel, driven wheel, metal tape, oil pump, pressure-regulating valve, speed-ratio regulation valve Composition.
The control system part is by engine controller EMS, electric machine controller MCU, gearbox controller TCU, electricity Pond management system BMS, entire car controller, Dynamometer Control System, rapid control prototyping dSPACE systems, host computer composition, institute The entire car controller stated passes through local area control bus CAN and engine controller EMS, electric machine controller MCU, gearbox controller TCU, battery management system BMS communicate, to be managed collectively the work of engine, motor, speed changer, battery.
The pilot control part is made of accelerator pedal, brake pedal, key switch.
Torque sensor is installed on the engine crankshaft, for feeding back the real-time torque of engine.
The power generation-electromotion integrated motor ISG includes stator and rotor two parts, stator bolt and wet type clutch Device is connected.
The wet clutch controls the process to be:Entire car controller utilizes the dtc signal of wet clutch transmission wet Formula clutch model is converted into oil pressure size, recycles oil pressure-electric current of solenoid valve to table look-up and driving electromagnetism is obtained after model is tabled look-up Electric current needed for valve, i.e. entire car controller output current control signal are to solenoid valve to control the opening and closing of solenoid valve and aperture size The final separation and engagement for realizing wet clutch.
Pass through electric wire between the AD mouths of the Dynamometer Control System and the DA mouths of rapid control prototyping dSPACE systems Connection, host computer are connected using optical fiber with the DS1005 board network cable transmissions end in rapid control prototyping dSPACE systems.
The rapid control prototyping dSPACE systems include the main control module and data acquisition module being linked together, Data acquisition module is used for the data for gathering analog quantity, digital quantity and CAN bus transmission.
Driver input module, real-time reception accelerator pedal and brake pedal letter are connected with the data acquisition module Number wait driver to be intended in real time, and these signal transmissions are handled to main control module, by main control module to braking moment Torque with drive system output is controlled.
Auto model is loaded into the control software of the dynamometer system:Include car body mass, wheel half to pass through, travel Resistance curve, speed ratio of main reducer, the real vehicle model by the dynamometer machine rotating speed and dtc signal that collect, and combine with Vehicle travel resistance, car speed, vehicle operating range is calculated in upper parameter.
Dynamical system is can be mixed using the hybrid vehicle test-bed based on buncher Can test and the test of buncher correlated performance.
The hybrid power system performance test step is:
Step 1: prepare before test, it is ensured that the normal operation of pilot system, mainly includes:Check engine, power generation-electricity Connection state between movement and motor-driven integrative motor ISG, continuous variable transmission assembly and battery component, checks engine fuel storage, stepless Transmission oil situation, checks the normal connection between host computer, rapid control prototyping dSPACE systems, entire car controller;
Step 2: interface debugging is carried out to vehicle CAN network;
Step 3: integrated vehicle control tactics validation test, including stable state control strategy and transient state coordination control strategy:Stable state control System strategy is main to complete pure electric vehicle, engine driving, joint driving, the test verification of driving charge mode;Transient state coordinates control The tactful main validation verification for completing coordination control strategy in mode handover procedure;
Step 4: Brake energy recovery is tested:The process of simulating brake on rack, to the regenerative braking energy of power assembly Calibration is verified and optimized to amount take-back strategy;
Step 5: vehicle dynamic property checking test:A series of specific operating modes are preset in Dynamometer Control System to mixed Close power assembly and carry out dynamic property test, such as hundred kilometers of accelerated tests, hill climbing test, limit accelerated test;
Step 6: vehicle economy checking test:It is loaded into the control software of Dynamometer Control System and presets work Condition file, by taking NEDC operating modes as an example, it is using the time as X-axis, and speed is the curve map of Y-axis.Dynamometer Control System passes through CAN Performance curve figure is sent to rapid control prototyping dSPACE systems by bus, the host computer equipped with ControlDesk softwares with it is fast Fast control prototype dSPACE systems are connected by data cable, and read performance curve from rapid control prototyping dSPACE systems Figure, the performance curve figure that operator is shown by observing on ControlDesk softwares, and added according to suggested speed Speed and brake operating, achieve the purpose that simulate working condition tests, after test, measure fuel consumption meter in engine fuel consumption quantity into The calculating of row vehicle economy;
Step 7: vehicle emission performance is tested:Pass through discharge of the emission measuring device to power assembly under specific operation Assessed.
The buncher Transmission Ratio Control algorithm test procedure is:
Step 1: carrying out the oil pressure of slave cylinder pressure-regulating valve and the rating test of on-load voltage relation, specific practice is The voltage of fixed active cylinder speed-ratio regulation valve, changes the on-load voltage of slave cylinder pressure-regulating valve, records corresponding pressure, then right Data carry out curve fitting, and obtain the oil pressure and on-load voltage relation of slave cylinder pressure-regulating valve;Carry out active cylinder speed-ratio regulation The rating test of the oil pressure of valve and fast ratio and on-load voltage relation, specific practice is the voltage of fixed slave cylinder pressure-regulating valve, Change the on-load voltage of active cylinder speed-ratio regulation valve, record corresponding pressure and transmission gear ratio, then data march line is intended Close, obtain the oil pressure of active cylinder speed-ratio regulation valve and fast ratio and on-load voltage relation;
Step 2: slave cylinder pressure-regulating valve is kept in a certain magnitude of voltage so that the clamping force of generation is in adjusting speed ratio It can prevent metal tape from skidding;Tradition CVT whole vehicles model is loaded into rapid control prototyping dSPACE systems and the input phase should Parameter, setting dynamometer machine are operated in a certain at the uniform velocity operating mode, and reality is calculated according to setting operating mode and whole vehicle model in entire car controller The power source speed of existing goals ratio, controls driving motor speed by MCU, motor speed is turned close to calculated power source Speed;
Step 3: by the speed probe collection driven wheel tach signal on buncher and through data acquisition module Block reaches TCU and calculates actual fast ratio, using this speed than making input of the difference as Transmission Ratio Control device with goals ratio, exports and exists for loading The magnitude of voltage of active cylinder speed-ratio regulation valve, to adjust the oil pressure of active cylinder, realizes that actual fast ratio follows goals ratio;
Step 4: related data is saved and transferred to host computer during experiment, after to experimental data at Reason, draws the fast ratio of image observation and follows situation;
For the validity of fully verification Transmission Ratio Control algorithm, different goals ratio situations of change is set to be followed into scanning frequency ratio Experiment, generally has step speed than the speed for the operating mode that changes, starts to walk than change.
The experiment of power control algolithm is clamped using the test-bed:Goal systems pressure is set to produce mutation, observation is actual The response of system pressure, so as to verify clamping force control algorithm effect.
Compared with prior art the beneficial effects of the invention are as follows:
1. a kind of hybrid vehicle test-bed and test method based on buncher of the present invention are used for The hybrid vehicle development phase, can improve efficiency of research and development, reduce cost.
2. a kind of hybrid vehicle test-bed and test method based on buncher of the present invention can use In hybrid vehicle algorithm development;By studying the control effect of algorithms of different, so that it is determined that optimum controling strategy.
3. a kind of hybrid vehicle test-bed and test method based on buncher of the present invention can be right Hybrid vehicle difference operating condition is tested.
4. a kind of hybrid vehicle test-bed and test method based on buncher of the present invention are compared with sample Car is tested, and has testing cost low, the advantages that from environmental restrictions.
5. a kind of hybrid vehicle test-bed and test method based on buncher of the present invention can be with For testing the Transmission Ratio Control characteristic and clamping force control characteristic of buncher.
Brief description of the drawings
The present invention is further illustrated below in conjunction with the accompanying drawings:
Fig. 1 is the structure diagram of the hybrid vehicle test-bed of the present invention based on buncher;
Fig. 2 is the step schematic diagram that hybrid power system performance test is carried out in the present invention;
Fig. 3 is buncher goals ratio change schematic diagram in the present invention;
In figure:1. fuel consumption meter, 2. engines, 3. exhaust-gas analyzers, 4. engine controller EMS, 5. torque sensors, 6. Wet clutch, 7. power generations/electromotion integrated motor ISG, 8. electric machine controller MCU, 9. inverters, 10. storage batteries, 11. electricity Pond management system BMS, 12. first speed probes, 13.CVT driving wheels, 14.CVT metal tapes, 15. speed-ratio regulation valves, 16.CVT driven wheels, 17. second speed probes, 18. oil pumps, 19. fuel tanks, 20. pressure-regulating valves, 21. gearbox controllers TCU, 22. dynamometer machines, 23. Dynamometer Control Systems, 24. accelerator pedals, 25. brake pedals, 26. key switches, 27. vehicle controls Device processed, 28. rapid control prototyping dSPACE systems, 29. host computers.
Embodiment
The present invention is described in detail below in conjunction with the accompanying drawings:
Refering to Fig. 1, the present invention provides a kind of hybrid vehicle test-bed based on buncher and test side Method, a kind of hybrid vehicle test-bed based on buncher include power source, buncher CVT, survey Work(machine, control system and pilot control part.
Refering to Fig. 1, the power source part is by engine 2, wet clutch 6, power generation-electromotion integrated motor ISG 7 and storage battery 10 form.
Refering to Fig. 1, buncher CVT parts are by driving wheel 13, driven wheel 16, metal tape 14, oil pump 18, speed Formed than regulating valve 15, pressure-regulating valve 20.
Refering to Fig. 1, the control system part is by engine controller EMS 4, electric machine controller MCU 8, speed changer Controller TCU 21, battery management system BMS 11, entire car controller 27, Dynamometer Control System 23, rapid control prototyping DSPACE systems 28, host computer 29 form, and the entire car controller 27 passes through local area control bus CAN and engine controller EMS 4, electric machine controller MCU 8, gearbox controller TCU 21, battery management system BMS 11 communicate, to be managed collectively hair The work of motivation 2, power generation-electromotion integrated motor ISG 7, CVT speed changers, storage battery 10.
Refering to Fig. 1, the pilot control part is made of accelerator pedal 24, brake pedal 25, key switch 26.Institute Torque sensor 5 is installed on 2 bent axle of engine stated, for feeding back the real-time torque of engine 2;On the engine 2 Fuel consumption meter 1 and exhaust-gas analyzer 3 are also associated with, for measuring engine consumption and discharge.
Refering to Fig. 1, the AD mouths of the Dynamometer Control System 23 and the DA mouths of rapid control prototyping dSPACE systems 28 Between connected by electric wire, host computer 29 is using the DS1005 board cables in optical fiber and rapid control prototyping dSPACE systems 28 Transmission end connects.The rapid control prototyping dSPACE systems 28 include main control module and the data acquisition being linked together Module, data acquisition module are used for the data for gathering analog quantity, digital quantity and CAN bus transmission.The data acquisition module On be connected with the driver such as driver input module, real-time reception accelerator pedal 24, brake pedal signal 25, key switch 26 reality Shi Yitu, and these signal transmissions are handled to main control module, by main control module to braking moment and drive system The torque of output is controlled.
Auto model is loaded into the control software of the dynamometer system 23:Include car body mass, wheel half to pass through, OK Sail resistance curve, speed ratio of main reducer, the real vehicle model is combined by the dynamometer machine rotating speed and dtc signal that collect Vehicle travel resistance, car speed, vehicle operating range is calculated in above parameter.
The wet clutch 6 controls the process to be:The dtc signal that entire car controller transmits wet clutch 6 utilizes Wet clutch model conversation is oil pressure size, recycles oil pressure-electric current of solenoid valve to table look-up and driving electricity is obtained after model is tabled look-up Electric current needed for magnet valve, i.e. entire car controller output current control signal are to solenoid valve to control the opening and closing of solenoid valve and aperture big The small final separation and engagement for realizing wet clutch 6.
Refering to Fig. 1, buncher CVT hydraulic system explanations:18 output oil pressure of oil pump is after the adjusting of pressure-regulating valve 20 As system pressure, it is connected with 16. oil cylinder of CVT driven wheels, provides clamping force for CVT driven wheels 16, the size of the clamping force needs Ensure metal tape 14 and bore the frictional force between disk, prevent metal tape 14 from skidding.System pressure is after speed-ratio regulation valve 15 Pressure is provided for 13 oil cylinder of driving wheel, speed-ratio regulation valve 15 is used for the oil cylinder working-pressure for adjusting driving wheel 13, as the pressure increases, main 13 radius of clean-up of driving wheel increases, and 16 radius of clean-up of driven wheel reduces, and speed is than reducing;When the pressure decreases, the work of driving wheel 30 half Footpath reduces, and the increase of 16 radius of clean-up of driven wheel, speed is than increase.
Refering to Fig. 2, the hybrid vehicle test-bed based on buncher, can carry out vehicle CAN nets Network interface debugging, integrated vehicle control tactics research and development, Brake energy recovery experiment, the verification examination of dynamic property checking test, economy Test and vehicle emission performance test etc. hybrid dynamic system correlation test.When carrying out working condition measurement, dynamometer machine can pass through below equation Calculate and simulate the load of dynamical system.
Wherein, Ttq--- speed changer output turns to refuseG---- vehicle gravity
F---- coefficient of rolling resistance i----- road grades
CD--- air resistance coefficient A---- front face areas
V----- speeds (km/h) δ --- --- gyrating mass coefficient
R----- radius of wheel i0--- ----speed ratio of main reducer
ηt--- -- transmission efficiency
Setting operating mode file is loaded into Dynamometer Control System 23 in advance, dynamometer system 23 is by CAN lines by operating mode Curve map is sent to rapid control prototyping dSPACE systems 28, the host computer 29 equipped with ControlDesk softwares and quick control Prototype dSPACE systems 28 are connected by data cable, and read performance curve figure from rapid control prototyping dSPACE systems 28.Examination Operator is tested by observing on ControlDesk softwares shown curve map, operate accelerator pedal 24 and brake pedal 25 into Row accelerates and brake operation, achievees the purpose that to simulate operating mode.
Refering to Fig. 1 and Fig. 3, when wet clutch 6 is in normally open, the correlated performance that can carry out buncher is surveyed Examination.Power generation at this time/electromotion integrated motor ISG 7 is used as power source, avoids traditional buncher testboard bay using hair The oil consumption and discharge that motivation is produced as power source;Transmission Ratio Control algorithm test procedure is:
Step 1: carry out the oil pressure of slave cylinder pressure-regulating valve 20 and the rating test of on-load voltage relation, specific practice It is the voltage of fixed active cylinder speed-ratio regulation valve 15, changes the on-load voltage of slave cylinder pressure-regulating valve 20, records corresponding pressure Power, then carry out curve fitting to data, obtain the oil pressure and on-load voltage relation of slave cylinder pressure-regulating valve 20;Carry out active cylinder The rating test of the oil pressure of speed-ratio regulation valve 15 and fast ratio and on-load voltage relation, specific practice are that fixed slave cylinder pressure is adjusted The voltage of valve 20, changes the on-load voltage of active cylinder speed-ratio regulation valve 15, records corresponding pressure and transmission gear ratio, then logarithm According to carrying out curve fitting, the oil pressure of active cylinder speed-ratio regulation valve 15 and fast ratio and on-load voltage relation are obtained;
Step 2: slave cylinder pressure-regulating valve 20 is kept in a certain magnitude of voltage so that the clamping force of generation is in adjusting speed ratio When can prevent metal tape 14 from skidding;Tradition CVT whole vehicles model and defeated is loaded into rapid control prototyping dSPACE systems 28 Enter relevant parameter, setting dynamometer machine 22 is operated in a certain at the uniform velocity operating mode, and entire car controller 27 is according to setting operating mode and whole vehicle model The power source speed for realizing goals ratio is calculated, driving 7 rotating speed of motor is controlled by MCU, makes 7 rotating speed of motor is close to be counted The power source speed of calculation;
Step 3: driven wheel is gathered by the first speed probe 12 on buncher, the second speed probe 17 Tach signal simultaneously reaches gearbox controller TCU 21 through data acquisition module and calculates actual speed ratio, by this speed ratio and goals ratio Make input of the difference as Transmission Ratio Control device, export to load the magnitude of voltage in active cylinder speed-ratio regulation valve 15, to adjust active cylinder Oil pressure, realize that actual fast ratio follows goals ratio;
Step 4: related data is saved and transferred to host computer 29 during experiment, after experimental data is carried out Processing, draws the fast ratio of image observation and follows situation;
For the validity of fully verification Transmission Ratio Control algorithm, different goals ratio situations of change is set to be followed into scanning frequency ratio Experiment, generally has step speed than the speed for the operating mode that changes, starts to walk than change.
The experiment of power control algolithm is clamped using the test-bed:Goal systems pressure is set to produce mutation, observation is actual The response of system pressure, so as to verify clamping force control algorithm effect.

Claims (3)

1. a kind of hybrid vehicle test-bed based on buncher, including power source, buncher, dynamometer machine, Control system and pilot control part, it is characterised in that:
The power source part is made of engine, wet clutch, power generation-electromotion integrated motor ISG and storage battery;Institute The buncher part stated by driving wheel, driven wheel, metal tape, oil pump, pressure-regulating valve, speed-ratio regulation valve group into;It is described Control system part by engine controller EMS, electric machine controller MCU, gearbox controller TCU, battery management system BMS, entire car controller, Dynamometer Control System, rapid control prototyping dSPACE systems, host computer composition;The vehicle control Device processed passes through local area control bus CAN and engine controller EMS, electric machine controller MCU, gearbox controller TCU, cell tube Reason system BMS communicates, to be managed collectively the work of engine, motor, speed changer, battery;
The process that controls of the wet clutch is:The dtc signal of wet clutch transmission is utilized wet type by entire car controller Clutch model is converted into oil pressure size, recycles oil pressure-electric current of solenoid valve to table look-up after model is tabled look-up and obtains drive magnetic valve Required electric current, i.e. entire car controller output current control signal are to solenoid valve to control the opening and closing of solenoid valve and aperture size most The separation and engagement of wet clutch are realized eventually;The AD mouths of the Dynamometer Control System and rapid control prototyping dSPACE systems Connected between the DA mouths of system by electric wire, host computer is using optical fiber and the DS1005 boards in rapid control prototyping dSPACE systems Network cable transmission end connects;The rapid control prototyping dSPACE systems include the main control module being linked together and data are adopted Collect module, data acquisition module is used for the data for gathering analog quantity, digital quantity and CAN bus transmission;The data acquisition module The driver intention signal such as driver input module, real-time reception accelerator pedal, brake pedal and key switch is connected with block, And handled these signal transmissions to main control module, braking moment and drive system output are turned by main control module Square is controlled.
2. a kind of hybrid vehicle test-bed test method based on buncher, it is characterised in that it is dynamic to carry out mixing Force system performance test step is as described below:
Step 1: prepare before experiment, it is ensured that the normal operation of hybrid power system, mainly includes:Check engine, power generation-electricity Connection state between movement and motor-driven integrative motor ISG, continuous variable transmission assembly and battery component, checks engine fuel storage, stepless Transmission oil situation, checks the normal connection between host computer, rapid control prototyping dSPACE systems, entire car controller;
Step 2: interface debugging is carried out to hybrid power system CAN network;
Step 3: hybrid power system control strategy validation test, including stable state control strategy and transient state coordination control strategy:Surely State control strategy mainly completes pure electric vehicle, engine driving, joint driving, the test verification of driving charge mode;Transient state is coordinated Control strategy mainly completes the validation verification of coordination control strategy in mode handover procedure;
Step 4: Brake energy recovery is tested:The process of simulating brake on test-bed, to the regeneration system of hybrid power system Calibration is verified and optimized to energy take-back strategy;
Step 5: hybrid power system dynamic property checking test:A series of specific operating modes are preset in Dynamometer Control System Dynamic property test, such as hundred kilometers of accelerated tests, hill climbing test, limit accelerated test are carried out to hybrid power system;
Step 6: hybrid power system economy checking test:It is loaded into the control software of Dynamometer Control System and sets in advance Determine performance curve figure, performance curve figure is sent to rapid control prototyping dSPACE systems by Dynamometer Control System by CAN bus System, the host computer equipped with ControlDesk softwares read performance curve figure from rapid control prototyping dSPACE systems, and operator is led to Cross the performance curve figure that shows on observation ControlDesk softwares to be accelerated and brake operating, reach simulation working condition tests Purpose, after test, measures the calculating that engine fuel consumption quantity in fuel consumption meter carries out hybrid power system economy;
Step 7: hybrid power system emission performance is tested:By exhaust-gas analyzer to hybrid power system under specific operation Discharge measure assessment.
3. a kind of hybrid vehicle test-bed test method based on buncher according to claim 2, its It is characterized in that, by controlling wet clutch to be in normal off open state, the gearshift performance experiment of buncher can be carried out, this Shi Fa electricity -electromotion integrated motor ISG avoids traditional buncher testboard bay and uses engine conduct as power source The oil consumption and discharge that power source produces;Transmission Ratio Control algorithm test procedure is as described below:
Step 1: carrying out the oil pressure of slave cylinder pressure-regulating valve and the rating test of on-load voltage relation, specific practice is fixed The voltage of active cylinder speed-ratio regulation valve, changes the on-load voltage of slave cylinder pressure-regulating valve, records corresponding pressure, then to data Carry out curve fitting, obtain the oil pressure and on-load voltage relation of slave cylinder pressure-regulating valve;Carry out active cylinder speed-ratio regulation valve The rating test of oil pressure and fast ratio and on-load voltage relation, specific practice is the voltage of fixed slave cylinder pressure-regulating valve, is changed The on-load voltage of active cylinder speed-ratio regulation valve, records corresponding pressure and transmission gear ratio, then carries out curve fitting to data, obtains Oil pressure and fast ratio and on-load voltage relation to active cylinder speed-ratio regulation valve;
Step 2: slave cylinder pressure-regulating valve is kept in a certain magnitude of voltage so that the clamping force of generation can prevent in adjusting speed ratio Only metal tape skids;Tradition CVT whole vehicles model is loaded into rapid control prototyping dSPACE systems and inputs relevant parameter, Setting dynamometer machine is operated in a certain at the uniform velocity operating mode, and entire car controller is calculated according to setting operating mode and whole vehicle model and realizes target The power source speed of fast ratio, controls driving motor speed by MCU, makes motor speed close to calculated power source speed;
Believe Step 3: gathering driving and driven wheel speed by the first speed probe on buncher and the second speed probe Number and reach TCU through data acquisition module and calculate actual fast ratio, using this speed than and goals ratio make difference as Transmission Ratio Control device Input, exports to load the magnitude of voltage in active cylinder speed-ratio regulation valve, to adjust the oil pressure of active cylinder, realizes that actual fast ratio follows Goals ratio;
Step 4: related data is saved and transferred to host computer during experiment, after experimental data is handled, paint Drawing follows situation as the fast ratio of observation;
For the validity of fully verification Transmission Ratio Control algorithm, different goals ratio situations of change is set to follow examination into scanning frequency ratio Test;It is general to have step speed than the speed for the operating mode that changes, starts to walk than change.
CN201810043086.4A 2018-01-17 2018-01-17 A kind of hybrid vehicle test-bed and test method based on buncher Pending CN107957341A (en)

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CN108414244A (en) * 2018-05-04 2018-08-17 重庆凯瑞汽车试验设备开发有限公司 A kind of power assembly of electric automobile real vehicle simulation test bench and its test method
CN108844751A (en) * 2018-06-13 2018-11-20 阿尔特汽车技术股份有限公司 A kind of PHEV power platform system based on actual engine
CN109855885A (en) * 2019-02-26 2019-06-07 武汉理工大学 Bar breathe out racing car transmission system performance test and match test platform
CN110032165A (en) * 2019-01-17 2019-07-19 上海大学 A kind of polydisc axial flux permanent magnet synchronous motor intelligent observing and controlling system
CN110823560A (en) * 2018-08-07 2020-02-21 上海华依科技集团股份有限公司 Data acquisition method for automatic transmission offline test system
WO2020044947A1 (en) * 2018-08-30 2020-03-05 ジヤトコ株式会社 Valve inspecting device and valve inspecting method
CN111442922A (en) * 2018-12-28 2020-07-24 广州汽车集团股份有限公司 Standard-alignment remanufacturing method and testing system for dual-clutch transmission rack

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108414244A (en) * 2018-05-04 2018-08-17 重庆凯瑞汽车试验设备开发有限公司 A kind of power assembly of electric automobile real vehicle simulation test bench and its test method
CN108844751A (en) * 2018-06-13 2018-11-20 阿尔特汽车技术股份有限公司 A kind of PHEV power platform system based on actual engine
CN110823560A (en) * 2018-08-07 2020-02-21 上海华依科技集团股份有限公司 Data acquisition method for automatic transmission offline test system
WO2020044947A1 (en) * 2018-08-30 2020-03-05 ジヤトコ株式会社 Valve inspecting device and valve inspecting method
CN111442922A (en) * 2018-12-28 2020-07-24 广州汽车集团股份有限公司 Standard-alignment remanufacturing method and testing system for dual-clutch transmission rack
CN110032165A (en) * 2019-01-17 2019-07-19 上海大学 A kind of polydisc axial flux permanent magnet synchronous motor intelligent observing and controlling system
CN109855885A (en) * 2019-02-26 2019-06-07 武汉理工大学 Bar breathe out racing car transmission system performance test and match test platform

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