CN103196676B - Multi-system distributed electric vehicle performance test bed and multi-system distributed electric vehicle performance test method - Google Patents
Multi-system distributed electric vehicle performance test bed and multi-system distributed electric vehicle performance test method Download PDFInfo
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Abstract
The invention discloses a multi-system distributed electric vehicle performance test bed and a multi-system distributed electric vehicle performance test method. The multi-system distributed electric vehicle performance test bed comprises an upper computer, an intelligent control system and a chassis dynamometer, wherein the upper computer is used for displaying real-time data transmitted by the intelligent control system and a data acquisition system, sending a control instrument to the intelligent control system and the data acquisition system and automatically evaluating a tested vehicle after a test is finished; the intelligent control system is used for receiving a command transmitted from the upper computer, automatically controlling an electric vehicle to run under a corresponding working condition according to the corresponding command, controlling simulated ground resistance loaded by the chassis dynamometer according to the vehicle speed and sending data to the data acquisition system in real time; and the chassis dynamometer is controlled by the intelligent control system and simulates the resistances of the ground to the electric vehicle at different speeds in real time, so that the test can be performed indoors. The multi-system distributed electric vehicle performance test bed has the advantages of being capable of testing the dynamic quality, the economical efficiency and the overall performance of the electric vehicle, required by the national standard of the electric vehicle.
Description
Technical field
The present invention relates to a kind of automotive test testing table, particularly relate to a kind of distributed multisystem electric automobile whole property test platform and method of testing.
Background technology
Along with the aggravation of the problem such as environmental pollution and energy shortage, electric automobile is more and more subject to people's attention as a kind of new-energy automobile, and the electric automobile of various model is constantly introduced to the market.National standard about electric automobile is also constantly perfect, to supervise electric automobile outgoing.The requirement of up-to-date GB GBT_18385-2005 " electric automobile _ power performance test method " and GB-T18386-2005 " electric automobile energy consumption rate and continual mileage test method " is to electric powered motor, and economy and vehicle performance are tested.
Present stage can realize becoming for the test platform of above two GBs test electric automobile whole that each electric automobile manufacturing enterprise must introduce and to dispatch from the factory testing apparatus.And existing testing apparatus needs tester's electric vehicle drive to run corresponding operating mode for completing GB test, the artificial application condition of this manned test is large, can not accurately run out of regulation operating mode, particularly survey energy expenditure rate test for accumulator of electric car discharge and recharge test and constant speed method in GB needs tester's electric vehicle drive to run several hours always, because long-duration driving vehicle easily causes tester tired, personal error can be larger, also likely because the maloperation of tester causes test to stop, cause test period elongated.Existing testing apparatus testing process is complicated, and only can realize minority test event.Special in the critical parameter of electric automobile in test process, (such as battery voltage, battery pack current, battery pack temperature, electric moter voltage, motor speed and motor temperature, motor output torque, pedal signal, chassis dynamometer real-time loading force value) there is no real time record and preservation, and pass through the real-time parameter analysis ability comprehensive evaluation electric automobile performance in test process.
Chinese patent (application number: 201110239365, patent name: a kind of electric automobile whole economic testing system and method for testing thereof) although this patent realizes automatic Pilot electric automobile, but its system is only prefixed the operating mode of several test economy, can not adjust arbitrarily according to the needs of tester.And the dependence test that can not realize electric powered motor.Most importantly electric automobile critical data record in test process not to be retained, can not automatic evaluation test vehicle in time after test.
Summary of the invention
Object of the present invention is exactly to solve the problem, a kind of distributed multisystem electric automobile whole property test platform and method of testing are provided, it have realize electric automobile dispatch from the factory Standard to electric powered motor, the test advantage of economy and vehicle performance.
To achieve these goals, the present invention adopts following technical scheme:
Distributed multisystem electric automobile whole property test platform, comprises
Host computer, for showing the real time data that intelligent control system and data acquisition system (DAS) transmit, also for sending steering order to intelligent control system and data acquisition system (DAS), having tested and automatically to have evaluated testing vehicle afterwards;
Intelligent control system, for receiving the order that host computer transmits, automatically controlling electric automobile to be measured according to the corresponding command and running corresponding operating mode, and controls the simulation ground drag of chassis dynamometer loading according to the speed of a motor vehicle, sends data in real time to data acquisition system (DAS);
Chassis dynamometer, is controlled by intelligent control system, and under real time modelling friction speed, ground is applied to the resistance of electric automobile to be measured, and test can be carried out in indoor;
Data acquisition system (DAS), the various data in the test process that real-time reception electric automobile to be measured, intelligent control system transmit, and in real time data are stored into USB flash disk by USB flash disk module.And receive host computer order, host computer desired data is uploaded;
Communication between described host computer and intelligent control system can select RS232, RS485 or CAN flexibly.
Communication between described host computer and data acquisition system (DAS) can select RS232, RS485 or CAN flexibly.
Described electric automobile to be measured is connected by CAN with the communication between data acquisition system (DAS).
Communication between described intelligent control system and data acquisition system (DAS) can select RS232, RS485 or CAN flexibly.
Described intelligent control system includes
Microcontroller, goes out speed acquisition input port for arbitrary disposition, communication interface comprises RS232 communication, RS485 communicates, CAN communication.
12, the high precision 16 tunnel AD analogue collection module be connected with microcontroller, for gathering chassis dynamometer simulated roadway Resistance Value;
The 4 road DA analog output modules be connected with microcontroller, for chassis dynamometer real-time loading, export pedal voltage signal automatic Pilot electric automobile to be measured in real time.
Based on the USB flash disk read module of CH376, save complicated usb protocol, directly realized the read-write preservation data of USB flash disk by the microprocessor controls of intelligent control system.
Described intelligent control system practical function comprises:
(a1) communicated with host computer by serial ports, accept host computer order;
(a2) automatically control electric automobile to be measured according to host computer order and run out of corresponding operating mode according to Standard, carry out corresponding test;
(a3) gather the real-time speed of a motor vehicle of electric automobile to be measured simultaneously and calculate resistance, control ground drag when chassis dynamometer loading simulation electric automobile during traveling to be measured.
And the power that the speed of a motor vehicle of measurement and chassis dynamometer add is passed to data acquisition system (DAS) in real time by CAN (a4).
Described data acquisition system (DAS) comprises usb data memory module, and and each system between communication module, RS232, RS485, CAN, three kinds of communication modes are selected flexibly.
Described data acquisition system (DAS) system realizing function comprises:
(b1) information flow between CAN acquisition battery of electric vehicle management system (BMS), electric machine controller (BMCM) and entire car controller (VCU) is utilized, and record;
(b2) A/D(analog-to-digital conversion module is utilized) gather electric machine controller total current, total voltage, motor temperature, battery total voltage, total current, battery pack temperature, and other possible consumer electric current, voltages;
(b3) by the speed that CAN reception intelligent control system transmits, the information such as the Resistance Value that chassis dynamometer real time modelling road surface loads;
(b4) accept host computer order and host computer is needed data upload;
(b5) data of will collect, real-time storage, in USB flash disk, realizes data backup.
Host computer practical function comprises:
(c1) for test job personnel selection preset in host computer present stage Standard the operating mode of test and project, optimum configurations is carried out to intelligent control system and data acquisition system (DAS);
(c2) exclusive operating condition design window, designs electric automobile measurement condition to be measured voluntarily flexibly for tester, test event on host computer computer.Tester only need draw the relation of measurement condition speed with the time on host computer computer, and then host computer calculates the parameter in machine intelligent control system control procedure according to Velocity Time graph of a relation, and lower biography order and parameter are to intelligent control system;
(c3) communicated with data acquisition system (DAS) with intelligent control system by serial ports, and data interaction;
(c4) test process data Real-Time Monitoring, data show in real time;
(c5) data in the USB flash disk be inserted on computer are read;
(c6) tested for tester's data call and datagraphic playback and institute's testing vehicle has been evaluated.
Distributed multisystem electric automobile whole property test platform and method of testing, comprise
Step (1): system initialization: electric automobile to be measured is placed on chassis dynamometer, setup test;
Step (2): setting testing table and electric automobile basic parameter to be measured: set vehicle basic parameter information to be measured by host computer, and chassis dynamometer basic parameter information; Described biography vehicle to be measured basic parameter information comprises electric automobile whole kerb weight to be measured, radius of wheel, type of vehicle, front face area; Described chassis dynamometer basic parameter information comprises diameter of cylinder, the scrambler number of teeth;
Step (3): after setting parameter completes, tester as required measurement condition selects operating condition design or selects preset operating mode.If just carry out test according to the requirement of GB GBT_18385-2005 " electric automobile _ power performance test method " and GB-T18386-2005 " electric automobile energy consumption rate and continual mileage test method " to enter step (5); If not, step (4) is just entered;
Step (4): tester draws the speed of required measurement condition and the graph of a relation of time on computers, host computer calculates the parameter in machine intelligent control system control procedure according to Velocity Time graph of a relation, and lower biography order and parameter are to intelligent control system; Enter step (6);
Step (5): select the operating mode needing test, lower biography order and parameter are to intelligent control system; Enter step (6);
Step (6): intelligent control system starts to control electric automobile automatic Pilot to be measured and controls chassis dynamometer real-time loading simulation ground drag, parameters in data acquisition system (DAS) Real-time Collection test process; Enter step (7);
Step (7): intelligent control system judges whether test completes, if just enter step (8), just returns step (6) if not;
Step (8): data in host computer acceptance test process also export the test result of vehicle to be measured, and test terminates.
Beneficial effect of the present invention:
1 proposes a kind of new intelligent testing method, simplifies tester, increases measuring accuracy simultaneously, real-time host computer display test data, and tested rear automatic Evaluation vehicle to be measured, automatically preserved test data, improving for vehicle provides foundation;
2 adopt distributed multisystem to carry out electric automobile test evaluation to be measured, chassis dynamometer control module and tester are driven electric automobile testing procedure to be measured, be integrated into an intelligent control system, achieve electric automobile automatic Pilot and chassis dynamometer real-time loading resistance synchronously carries out, make test process meet true test environment;
3 increase host computer display system, all test events of present stage Standard are not only prefixed at host computer, and add operating condition design window, really achieve the test idea of designer according to oneself, the corresponding operating mode of design is designed on upper, the upper parameter calculated in machine intelligent control system control procedure, lower biography order and parameter, to intelligent control system, just can carry out dependence test.Owing to adding operating condition design window, for the upgrading of this evaluation test testing table and adaptation new testing standard in future provide possibility;
4 can not comprehensive evaluation electric automobile to be measured for existing testing apparatus, increase data acquisition system (DAS), motor in electric automobile in native system Real-time Collection test process, battery, the most parameter information such as car load is large owing to collecting data volume in test duration long test process especially, for solution must not in real time by data upload to host computer, add USB flash disk memory module, in real time by data storage U disk, tested the rear host computer that supplies and called;
5 prior aries are that what to do is propose reasonable method when researching and developing and studying electric automobile all parts in electric automobile process, and to the matching correct between all parts, that is their technology is not for whole vehicle, just set forth the motor of reasonable test electric automobile, the platform of battery.The present invention is after going out complete electric automobile to electric automobile manufacturer production, the dynamic property before dispatching from the factory to the electric automobile of reality and the test platform of economy.
Accompanying drawing explanation
Fig. 1 is the system chart of the present invention's distributed multisystem electric automobile whole property test platform;
Fig. 2 is method of testing process flow diagram of the present invention;
1, chassis dynamometer, 2, electric automobile to be measured, 3, data acquisition system (DAS), 4, intelligent control system, 5, host computer.Embodiment
Below in conjunction with accompanying drawing and embodiment, the invention will be further described.
As shown in Figure 1, cloth multisystem electric automobile whole property test platform, comprises
Host computer 5, for showing the real time data that intelligent control system 4 and data acquisition system (DAS) 3 transmit, also for sending steering order to intelligent control system 4 and data acquisition system (DAS) 3, having tested and automatically to have evaluated testing vehicle afterwards;
Intelligent control system 4, for receiving the order that host computer 5 transmits, automatically control electric automobile 2 to be measured according to the corresponding command and run corresponding operating mode, and control the simulation ground drag of chassis dynamometer 1 loading according to the speed of a motor vehicle, send data to data acquisition system (DAS) 3 in real time;
Chassis dynamometer 1, is controlled by intelligent control system 4, and under real time modelling friction speed, ground is applied to the resistance of electric automobile 2 to be measured, and test can be carried out in indoor;
Data acquisition system (DAS) 3, the various data in the test process that real-time reception electric automobile to be measured 2, intelligent control system 4 transmit, and in real time data are stored into USB flash disk by USB flash disk module.And receive host computer 5 and order, host computer 5 desired data is uploaded;
Communication between described host computer 5 and intelligent control system 4 can select RS232, RS485 or CAN flexibly.
Communication between described host computer 5 and data acquisition system (DAS) 3 can select RS232, RS485 or CAN flexibly.
Described electric automobile to be measured 2 is connected by CAN with the communication between data acquisition system (DAS) 3.
Communication between described intelligent control system 4 and data acquisition system (DAS) 3 can select RS232, RS485 or CAN flexibly.
Described intelligent control system 4 includes
Microcontroller, go out speed acquisition input port for arbitrary disposition, communication interface comprise 232 communications, 485 communication, CAN communication;
12, the high precision 16 tunnel AD analogue collection module be connected with microcontroller, for gathering chassis dynamometer 1 simulated roadway Resistance Value;
The 4 road DA analog output modules be connected with microcontroller, for chassis dynamometer 1 real-time loading, export pedal voltage signal automatic Pilot electric automobile 2 to be measured in real time.
Based on the USB flash disk read module of CH376, save complicated usb protocol, directly realized the read-write preservation data of USB flash disk by the microprocessor controls of intelligent control system 4.
Described intelligent control system 4 practical function comprises:
(a1) communicated with host computer 5 by serial ports, accept host computer 5 and order;
(a2) order control electric automobile 2 to be measured automatically to run out of corresponding operating mode according to Standard according to host computer 5, carry out corresponding test;
(a3) gather electric automobile 2 to be measured speed of a motor vehicle calculating in real time resistance simultaneously, control ground drag time chassis dynamometer 1 loading simulation electric automobile 2 to be measured travels.
And the power that the speed of a motor vehicle of measurement and chassis dynamometer 1 add is passed to data acquisition system (DAS) 3 in real time by CAN (a4).
Described data acquisition system (DAS) 3 comprises usb data memory module, and and each system between communication module, RS232, RS485, CAN three kinds of communication modes select flexibly.
Described data acquisition system (DAS) 3 practical function comprises:
(b1) CAN is utilized to obtain information flow between electric motor car 2 battery management system (BMS) to be measured, electric machine controller (BMCM) and entire car controller (VCU), and record;
(b2) A/D(analog-to-digital conversion module is utilized) gather electric machine controller total current, total voltage, motor temperature, battery total voltage, total current, battery pack temperature, and other possible consumer electric current, voltages;
(b3) by the speed that CAN reception intelligent control system 4 transmits, the information such as the Resistance Value that chassis dynamometer 1 real time modelling road surface loads;
(b4) accept host computer 5 to order host computer 5 is needed data upload;
(b5) data of will collect, real-time storage, in USB flash disk, realizes data backup.
Host computer 5 practical function comprises:
(c1) for test job personnel selection preset in host computer 5 present stage Standard the operating mode of test and project, optimum configurations is carried out to intelligent control system 4 and data acquisition system (DAS) 3;
(c2) exclusive operating condition design function, designs electric automobile 2 measurement condition to be measured voluntarily flexibly for tester, test event on host computer 5.Tester only need draw the relation of measurement condition speed with the time on host computer 5, and then host computer 5 calculates the parameter in machine intelligent control system 4 control procedure according to Velocity Time graph of a relation, and lower biography order and parameter are to intelligent control system 4;
(c3) communicated with data acquisition system (DAS) 3 with intelligent control system 4 by serial ports, and data interaction;
(c4) test process data Real-Time Monitoring, data show in real time;
(c5) data in the USB flash disk be inserted on computer are read;
(c6) tested for tester's data call and datagraphic playback and institute's testing vehicle has been evaluated.
Distributed multisystem electric automobile whole property test platform and method of testing, comprise
Step (1): system initialization: electric automobile 2 to be measured is placed on chassis dynamometer 1, setup test;
Step (2): setting testing table and electric automobile to be measured 2 basic parameter: set vehicle basic parameter information to be measured by host computer 5, and chassis dynamometer 1 basic parameter information; Described biography vehicle to be measured basic parameter information comprises electric automobile 2 complete vehicle curb weight to be measured, radius of wheel, type of vehicle, front face area; Described chassis dynamometer 1 basic parameter information comprises diameter of cylinder, the scrambler number of teeth;
Step (3): after setting parameter completes, tester as required measurement condition selects operating condition design or selects preset operating mode.If just carry out test according to the requirement of GB GBT_18385-2005 " electric automobile _ power performance test method " and GB-T18386-2005 " electric automobile energy consumption rate and continual mileage test method " to enter step (5); If not, step (4) is just entered;
Step (4): draw the speed of required measurement condition and the graph of a relation of time, host computer 5 calculates the parameter in machine intelligent control system 4 control procedure according to Velocity Time graph of a relation, and lower biography order and parameter are to intelligent control system 4; Enter step (6);
Step (5): select the operating mode needing test, lower biography order and parameter are to intelligent control system 4; Enter step (6);
Step (6): intelligent control system 4 starts to control electric automobile 2 automatic Pilot to be measured and controls chassis dynamometer 1 real-time loading simulation ground drag, parameters in data acquisition system (DAS) 3 Real-time Collection test process; Enter step (7);
Step (7): intelligent control system 4 judges whether test completes, if just enter step (8), just returns step (6) if not;
Step (8): data in host computer 5 acceptance test process also export the test result of vehicle to be measured, and test terminates.
Native system can complete according to GBT_18385-2005 " electric automobile _ power performance test method " and test:
Max. speed test in (1) 30 minute;
(2) battery discharging test;
(3) max. speed test;
(4) accumulator 40% discharge test;
(5) 4% and 12% climbable gradient test;
(6) uphill starting aptitude tests;
Native system can complete according to GB-T18386-2005 " electric automobile energy consumption rate and continual mileage test method " and test:
(1) operating condition method surveys electric automobile 2 continual mileage to be measured;
(2) constant speed method surveys electric automobile 2 continual mileage to be measured;
(3) energy expenditure rate is calculated.
Native system is not only prefixed all test events of present stage Standard at host computer 5, and add operating condition design function, really achieve the test idea of designer according to oneself, host computer 5 is designed the corresponding operating mode of design, calculate the parameter in machine intelligent control system 4 control procedure, lower biography order and parameter, to intelligent control system 4, just can carry out dependence test.Owing to adding operating condition design window, for the upgrading of this evaluation test testing table and adaptation new testing standard in future provide possibility.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection scope of the present invention.
Claims (5)
1. the method for testing that adopts of distributed multisystem electric automobile whole property test platform,
Describedly test bedly to comprise:
Host computer, for showing the real time data that intelligent control system and data acquisition system (DAS) transmit, also for sending steering order to intelligent control system and data acquisition system (DAS), having tested and automatically to have evaluated electric automobile to be measured afterwards;
Intelligent control system, for receiving the order that host computer transmits, automatically controlling electric automobile to be measured according to the corresponding command and running corresponding operating mode, and controls the simulation ground drag of chassis dynamometer loading according to the speed of a motor vehicle, sends data in real time to data acquisition system (DAS);
Chassis dynamometer, is controlled by intelligent control system, and under real time modelling friction speed, ground is applied to the resistance of electric automobile to be measured, and test is carried out in indoor;
Data acquisition system (DAS), the various data in the test process that real-time reception electric automobile to be measured, intelligent control system transmit, and in real time data are stored into USB flash disk by USB flash disk module; And receive host computer order, host computer desired data is uploaded;
It is characterized in that,
Described method comprises
Step (1): system initialization: electric automobile to be measured is placed on chassis dynamometer, setup test;
Step (2): setting testing table and electric automobile basic parameter to be measured: set electric automobile basic parameter information to be measured by host computer, and chassis dynamometer basic parameter information; Described electric automobile basic parameter information to be measured comprises electric automobile whole kerb weight to be measured, radius of wheel, type of vehicle, front face area; Described chassis dynamometer basic parameter information comprises diameter of cylinder, the scrambler number of teeth;
Step (3): after setting parameter completes, tester as required measurement condition selects operating condition design or selects preset operating mode; If just carry out test according to the requirement of GB GBT_18385-2005 " electric automobile _ power performance test method " and GB-T18386-2005 " electric automobile energy consumption rate and continual mileage test method " to enter step (5); If not, step (4) is just entered;
Step (4): draw the speed of required measurement condition and the graph of a relation of time, host computer calculates the parameter in intelligent control system control procedure according to Velocity Time graph of a relation, lower biography order and parameter are to intelligent control system; Enter step (6);
Step (5): select the operating mode needing test, lower biography order and parameter are to intelligent control system; Enter step (6);
Step (6): intelligent control system starts to control electric automobile automatic Pilot to be measured and controls chassis dynamometer real-time loading simulation ground drag, parameters in data acquisition system (DAS) Real-time Collection test process; Enter step (7);
Step (7): intelligent control system judges whether test completes, if just enter step (8), just returns step (6) if not;
Step (8): data in host computer acceptance test process also export the test result of electric automobile to be measured, and test terminates.
2. the method for claim 1, is characterized in that, described intelligent control system includes
Microcontroller, for configuring speed acquisition input port, the communication interface of described microcontroller comprises 232 communications, 485 communications, CAN communication;
12, the high precision 16 tunnel AD analogue collection module be connected with microcontroller, for gathering chassis dynamometer simulated roadway Resistance Value;
The 4 road DA analog output modules be connected with microcontroller, for chassis dynamometer real-time loading, export pedal voltage signal automatic Pilot electric automobile to be measured in real time;
Based on the USB flash disk read module of CH376, directly realized the read-write preservation data of USB flash disk by the microprocessor controls of described intelligent control system.
3. method as claimed in claim 1 or 2, it is characterized in that, described intelligent control system practical function comprises:
(a1) communicated with host computer by serial ports, accept host computer order;
(a2) automatically control electric automobile to be measured according to host computer order and run out of corresponding operating mode according to Standard, carry out corresponding test;
(a3) gather the real-time speed of a motor vehicle of electric automobile to be measured simultaneously and calculate resistance, control ground drag when chassis dynamometer loading simulation electric automobile during traveling to be measured;
And the power that the speed of a motor vehicle of measurement and chassis dynamometer add is passed to data acquisition system (DAS) in real time by CAN (a4).
4. the method for claim 1, is characterized in that, described data acquisition system (DAS) system realizing function comprises:
(b1) CAN is utilized to obtain information flow between cell management system of electric automobile to be measured, electric machine controller and entire car controller, and record;
(b2) A/D is utilized to gather electric machine controller total current, total voltage, motor temperature, battery total voltage, total current, battery pack temperature;
(b3) by the speed that CAN reception intelligent control system transmits, the Resistance Value information that chassis dynamometer real time modelling road surface loads;
(b4) accept host computer order and host computer is needed data upload;
(b5) data of will collect, real-time storage, in USB flash disk, realizes data backup.
5. the method for claim 1, is characterized in that, host computer practical function comprises:
(c1) for test job personnel selection preset in host computer present stage Standard the operating mode of test and project, optimum configurations is carried out to intelligent control system and data acquisition system (DAS);
(c2) exclusive operating condition design function, designs electric automobile measurement condition to be measured voluntarily flexibly for tester, test event on host computer computer; Tester only need draw the relation of measurement condition speed with the time on host computer computer, and then host computer calculates the parameter in intelligent control system control procedure, and lower biography order and parameter are to intelligent control system;
(c3) communicated with data acquisition system (DAS) with intelligent control system by serial ports, and data interaction;
(c4) test process data Real-Time Monitoring, data show in real time;
(c5) data in the USB flash disk be inserted on computer are read;
(c6) tested for tester's data call and datagraphic playback and electric automobile to be measured has been evaluated.
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| CN115078895B (en) * | 2022-08-23 | 2022-12-02 | 江苏智能无人装备产业创新中心有限公司 | Comprehensive test method, device and medium for distributed electric drive vehicle |
| CN116312105B (en) * | 2023-02-03 | 2024-02-23 | 深圳风向标教育资源股份有限公司 | New energy automobile chassis simulation training device based on virtual reality |
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| CN102243145B (en) * | 2011-04-28 | 2013-06-19 | 株洲南车时代电气股份有限公司 | Testing apparatus and method for electric drive system of electric automobile |
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