CN202049353U - Virtual measurement and control system for electric car - Google Patents
Virtual measurement and control system for electric car Download PDFInfo
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- CN202049353U CN202049353U CN2011200303858U CN201120030385U CN202049353U CN 202049353 U CN202049353 U CN 202049353U CN 2011200303858 U CN2011200303858 U CN 2011200303858U CN 201120030385 U CN201120030385 U CN 201120030385U CN 202049353 U CN202049353 U CN 202049353U
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Abstract
The utility model relates to a virtual measurement and control system for an electric car, aiming at providing the practical virtual measurement and control system for the electric car with a low-cost signal collecting module. The virtual measurement and control system comprises an interface circuit and a virtual simulation equipment, wherein the virtual simulation equipment is connected with a control system of a measured electric car through the interface circuit; and the interface circuit comprises a processor, an analog-to-digital conversion circuit, a duty ratio measuring circuit, an input amplified regulation circuit, a switch/analog quantity conversion circuit, an output amplified regulation circuit, a digital-to-analogue conversion circuit, a switch quantity conversion circuit, a communication interface and a terminal. A system which debugs the control system of the electric car through the virtual equipment is provided by the utility model, and therefore, no electric car and a field are needed, the debugging process is simple and feasible, and the product development efficiency is improved.
Description
Technical field
The utility model relates to the computer virtual field tests, and in particular, the utility model is the electric motor car virtual measuring and controling system about electric vehicle control system virtual detection and control.
Background technology
Electric vehicle control system exploitation general flow: conceptual design → hardware design → software design → system debug → technological document is write.Wherein system debug is one of key link of observing and controlling product development.Usually need electric motor car in kind to debug in debug process, also need the place, battery of electric motor car operation etc. during debugging, cause debug difficulties.
Patent Office of the People's Republic of China discloses a CN101749302A document on June 23rd, 2010, name is called a kind of hydraulically operated equipment (HOE) on-line virtual testing analysis system, this system utilizes computer platform to set up, it comprises: acquisition module, and it utilizes PXIe acquisition platform, SCXI Platform for Signal Condition and CDAQ portable data acquisition platform image data; Administration module, it comprises a data ADMINISTRATION SUBSYSTEM; Reporting modules, it will show in word form mode at the test findings that object is done; Analysis module, it comprise one with data test partly adopt the waveform result carry out the eigenwert collection, the analyzing subsystem that the result of needs is extracted.The shortcoming of this system is that signal acquisition module is made of complex structure, cost height PXIe acquisition platform, SCXI Platform for Signal Condition and CDAQ portable data acquisition platform.
Summary of the invention
The utility model provides a kind of electric motor car virtual measuring and controling system with practicality of low-cost signal acquisition module for solving the high shortcoming of the complicated cost of signal acquisition structure that exists in the prior art.
The technical scheme that its technical matters that solves the utility model adopts is: the utility model comprises interface circuit and virtual emulation equipment, virtual emulation equipment links to each other with tested electric vehicle control system by interface circuit, interface circuit comprises processor, analog to digital conversion circuit, the duty ratio measuring circuit, the adjustment circuit is amplified in input, switching value/analog quantity change-over circuit, the adjustment circuit is amplified in output, D/A converting circuit, the switching value change-over circuit, communication interface and terminal, the signal output part of tested electric vehicle control system by terminal respectively with the duty ratio measuring circuit, the adjustment circuit is amplified in input, the input end of switching value/analog quantity change-over circuit links to each other, the duty ratio measuring circuit, the adjustment circuit is amplified in input and the switching value/output terminal of analog quantity change-over circuit links to each other with the input end of analog to digital conversion circuit, the output terminal of analog to digital conversion circuit links to each other with the input end of processor, the output terminal of processor respectively with D/A converting circuit, the input end of switching value change-over circuit links to each other, the output terminal of D/A converting circuit amplifies the input end of adjusting circuit with output and links to each other, and the output terminal of circuit is adjusted in the output amplification and the output terminal of switching value change-over circuit links to each other with the input end of tested electric vehicle control system by terminal respectively; Processor links to each other with virtual emulation equipment by communication interface; Emulator comprises the PC computer.
Signal between tested control system and the processor is divided into pwm signal, simulating signal and switching value signal, the pwm signal of tested control system output is converted into and the proportional simulating signal of pwm signal dutycycle through the duty ratio measuring circuit, simulating signal is handled through the analog to digital conversion sending processor, and deliver to the virtual objects of PC by communication interface, control; The simulating signal of tested control system output links through level conversion and analog to digital conversion circuit and processor, the multi-way switch amount control signal of tested control system output becomes simulating signal through switching value/analog quantity change-over circuit, send analog to digital conversion circuit to be converted to digital quantity, and deliver to the virtual objects of PC by communication interface; The communication interface of interface circuit inside and the virtual unit exchange message on the PC, virtual unit moves or provides corresponding signal to tested electric vehicle control system according to the signal of tested electric vehicle control system.
As preferably, the duty ratio measuring circuit comprises the voltage-controlled low pass active filter circuit of holding circuit, current rectifying and wave filtering circuit and single supply; Holding circuit is made up of diode D1; current rectifying and wave filtering circuit is made up of diode D2, capacitor C 1, resistance R 1; the PWM input signal; send diode D2, capacitor C 1 and resistance R 1 to carry out rectifying and wave-filtering through the D1 pressure limiting, export the direct current signal of 0-5V then by the voltage-controlled low pass active filter circuit of the single supply of forming by resistance R 2, R3, R4, R5, capacitor C 2, C3 and operational amplifier A 1.The duty ratio measuring circuit is made of the voltage-controlled low pass active filter circuit of holding circuit, current rectifying and wave filtering circuit and single supply; The PWM input signal of 1-30V send diode D, capacitor C 1 to carry out rectifying and wave-filtering through the D1 pressure limiting, and the voltage-controlled low pass active filter circuit of forming by R2, R3, R4, R5, C2, C3 and operational amplifier A 1 of single supply is exported the direct current signal of 0-5V then.
As preferably, communication interface is the RS232 serial ports.The RS232 serial ports has easy-to-connect, the advantage that communication speed is fast.
As preferably, communication interface is a USB interface.USB interface has plug and play advantage easy to use.
The beneficial effects of the utility model are: a kind of system that adopts virtual unit to carry out the electric vehicle control system debugging is provided, has not needed electric motor car and place, made debug process simple, improved the efficient of product development.
Description of drawings
Fig. 1 is a kind of system chart of the utility model electric motor car virtual measuring and controling system;
Fig. 2 is a kind of block diagram of interface circuit;
Fig. 3 is a kind of schematic diagram of duty ratio measuring circuit;
Among the figure: 1. virtual measuring and controling system, 2. interface circuit, 3. virtual emulation equipment, 4. tested electric vehicle control system, 5. processor, 6. terminal, 7. duty ratio measuring circuit, 8. analog to digital conversion circuit is 9. imported to amplify and is adjusted circuit, 10. switching value/analog quantity change-over circuit, 12. amplifying, output adjusts circuit, 13. D/A converting circuit, 14. switching value change-over circuits, 15. communication interfaces.
Embodiment
Below by specific embodiment, and in conjunction with the accompanying drawings the technical solution of the utility model is described in further detail.
Embodiment:
The electric motor car virtual measuring and controling system of present embodiment, referring to Fig. 1, form virtual measuring and controling system 1 by interface circuit 2 and virtual emulation equipment 3, one end of interface circuit 2 links to each other with tested electric vehicle control system 4, the other end of interface circuit 2 links to each other with virtual emulation equipment 3, and virtual emulation equipment 3 comprises PC computer and 3D virtual software.
Referring to Fig. 2, interface circuit 2 comprises processor 5, analog to digital conversion circuit 8, duty ratio measuring circuit 7, input amplification adjustment circuit 9, switching value/analog quantity change-over circuit 10, exports to amplify and adjust circuit 12, D/A converting circuit 13, switching value change-over circuit 14, communication interface 15 and terminal 6; The signal output part of tested electric vehicle control system 4 by terminal 6 respectively with duty ratio measuring circuit 7, adjustment circuit 9 is amplified in input, the input end of switching value/analog quantity change-over circuit 10 links to each other, duty ratio measuring circuit 7, input is amplified the output terminal of adjusting circuit 9 and switching value/analog quantity change-over circuit 10 and is linked to each other with the input end of analog to digital conversion circuit 8, the output terminal of analog to digital conversion circuit 8 links to each other with the input end of processor 5, the output terminal of processor 5 respectively with D/A converting circuit 13, the input end of switching value change-over circuit 14 links to each other, the output terminal of D/A converting circuit 13 amplifies the input end of adjusting circuit 12 with output and links to each other, and the output terminal of circuit 12 is adjusted in the output amplification and the output terminal of switching value change-over circuit 14 links to each other with the input end of tested electric vehicle control system 4 by terminal 6 respectively; Processor 5 links to each other with virtual emulation equipment 3 by communication interface 15.
Referring to Fig. 3, duty ratio measuring circuit 7 comprises the voltage-controlled low pass active filter circuit of holding circuit, current rectifying and wave filtering circuit and single supply; Holding circuit is made up of diode D1, and current rectifying and wave filtering circuit is made up of diode D2, capacitor C 1, resistance R 1, and the voltage-controlled low pass active filter circuit of single supply is made up of resistance R 2, R3, R4, R5, capacitor C 2, C3 and operational amplifier A 1.
Signal between tested electric vehicle control system 4 and the interface circuit 2 is divided into pwm signal, analog signals and switching value signal, pwm signal is converted to and the proportional simulating signal of pwm signal dutycycle by duty ratio measuring circuit 7, be converted to digital signal through analog to digital conversion circuit 8 again, be sent to processor 5 and handle; The analog signals of tested electric vehicle control system 4 amplifies adjustment circuit 9 by input and carries out the level adjustment, 0-24V voltage signal and 0-20mA current signal are converted to the 0-5V voltage signal, be converted to digital signal through analog to digital conversion circuit 8 again, be sent to processor 5 and handle; The switching value signal of tested electric vehicle control system 4 is converted to analog signals through switching value/analog quantity change-over circuit 10, is converted to digital signal by analog to digital conversion circuit 8 again, is sent to processor 5 and handles.
The signal that interface circuit 2 outputs to tested electric vehicle control system 4 is divided into analog signals and switching value signal, analog signals is converted to the voltage analog signal of 0-5V through D/A converting circuit 13 by the digital quantity signal of processor 5 outputs, amplify adjustment circuit 12 by output again and carry out the level adjustment, be converted to 0-24V voltage signal and 0-20mA current signal, as the control signal or the feedback signal of tested electric vehicle control system 4; The switching value signal of processor 5 outputs is active signals of 5V, is converted to passive switch amount signal by switching value change-over circuit 14, is transported to control signal and the status signal of tested electric vehicle control system 4 as virtual emulation equipment 3.
PC computer exchange message in the communication interface 15 of interface circuit 2 inside and the virtual emulation equipment 3, the PC computer is equipped with the 3D virtual software, sets virtual objects corresponding to tested electric vehicle control system 4 by the 3D virtual software in the PC computer; Virtual objects moves or provides corresponding signal to tested electric vehicle control system 4 according to the signal of tested electric vehicle control system 4.
Above embodiment is one of preferred plan of the present utility model, is not that the utility model is done any pro forma restriction, also has other variant and remodeling under the prerequisite that does not exceed the technical scheme that claim puts down in writing.
Claims (4)
1. electric motor car virtual measuring and controling system, comprise interface circuit and virtual emulation equipment, described virtual emulation equipment links to each other with tested electric vehicle control system by described interface circuit, it is characterized in that: described interface circuit comprises processor, analog to digital conversion circuit, the duty ratio measuring circuit, the adjustment circuit is amplified in input, switching value/analog quantity change-over circuit, the adjustment circuit is amplified in output, D/A converting circuit, the switching value change-over circuit, communication interface and terminal, the signal output part of described tested electric vehicle control system by described terminal respectively with described duty ratio measuring circuit, the adjustment circuit is amplified in input, the input end of switching value/analog quantity change-over circuit links to each other, described duty ratio measuring circuit, the adjustment circuit is amplified in input and the switching value/output terminal of analog quantity change-over circuit links to each other with the input end of analog-digital conversion circuit as described, the output terminal of analog-digital conversion circuit as described links to each other with the input end of described processor, the output terminal of described processor respectively with described D/A converting circuit, the input end of switching value change-over circuit links to each other, the output terminal of described D/A converting circuit amplifies the input end of adjusting circuit with described output and links to each other, and the output terminal of adjustment circuit is amplified in described output and the output terminal of described switching value change-over circuit links to each other with the input end of described tested electric vehicle control system by described terminal respectively; Described processor links to each other with described virtual emulation equipment by described communication interface; Described emulator comprises the PC computer.
2. electric motor car virtual measuring and controling system according to claim 1 is characterized in that: described duty ratio measuring circuit comprises the voltage-controlled low pass active filter circuit of holding circuit, current rectifying and wave filtering circuit and single supply; Described holding circuit is made up of diode D1; described current rectifying and wave filtering circuit is made up of diode D2, capacitor C 1, resistance R 1; described PWM input signal; send diode D2, capacitor C 1 and resistance R 1 to carry out rectifying and wave-filtering through the D1 pressure limiting, export the direct current signal of 0-5V then by the voltage-controlled low pass active filter circuit of the described single supply of forming by resistance R 2, R3, R4, R5, capacitor C 2, C3 and operational amplifier A 1.
3. electric motor car virtual measuring and controling system according to claim 1 and 2 is characterized in that: described communication interface comprises the RS232 serial ports.
4. electric motor car virtual measuring and controling system according to claim 1 and 2 is characterized in that: described communication interface comprises USB interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200303858U CN202049353U (en) | 2011-01-28 | 2011-01-28 | Virtual measurement and control system for electric car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200303858U CN202049353U (en) | 2011-01-28 | 2011-01-28 | Virtual measurement and control system for electric car |
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| CN202049353U true CN202049353U (en) | 2011-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011200303858U Expired - Fee Related CN202049353U (en) | 2011-01-28 | 2011-01-28 | Virtual measurement and control system for electric car |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102636997A (en) * | 2012-05-13 | 2012-08-15 | 马玉春 | Simulation method for analog input and switch output module |
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2011
- 2011-01-28 CN CN2011200303858U patent/CN202049353U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102636997A (en) * | 2012-05-13 | 2012-08-15 | 马玉春 | Simulation method for analog input and switch output module |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111123 Termination date: 20120128 |