CN101000366A - Testing device for ability of preventing electromagnetic wave interference of CVT speed variater and its method - Google Patents
Testing device for ability of preventing electromagnetic wave interference of CVT speed variater and its method Download PDFInfo
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Abstract
A device used for testing anti-electromagnetic-wave interference ability of CVT speed variator is prepared as setting radio emitter and radio receiver of common band in 30m radius from speed variator control module and engine control module, electric-connecting communication interfaces of two said modules to computer and setting gear position of CVT speed variator on gear position to be tested. Its testing method is also disclosed.
Description
Technical field
The present invention relates to a kind of proving installation and method of CVT variator, especially the proving installation and the method thereof of CVT variator anti-electromagnetic wave interference performance.
Background technology
At present, along with the generally use of various electronics, Communication Equipment, electromagnetic wave affects people's life more and more; As at automobile manufacturing field, be the comfortableness that improves car steering and take, and the economy of vehicle ', used a large amount of electronic equipments widely.As one of them, control integrated circuit-central controller is disposed in commonly used having on engine and CVT variator, and it is made of engine control module ECU and transmission control module TCU respectively.During use, engine control module ECU and transmission control module TCU accept the instruction of host computer, are controlling engine respectively and variator runs on optimum condition.Yet, assembling this adapted transmission control module TCU the CVT variator vehicle under steam, very easily be subjected to the interference of external electromagnetic field, gently control ineffectively, heavy then out of hand, and then cause disastrous accident.For preventing and stop the interference of external electromagnetic field, this vehicle must carry out the test of anti-electromagnetic wave interference performance before typing is produced, and does not see that so far corresponding testing device and method emerge.
Summary of the invention
The technical problem to be solved in the present invention is for overcoming weak point of the prior art, and the proving installation and the method thereof of CVT variator anti-electromagnetic wave interference performance a kind of simple in structure, practical, easy to use is provided.
The proving installation of CVT variator anti-electromagnetic wave interference performance comprises the CVT variator that places on the suitable vehicle that travels on the way, and the transmission control module TCU and the engine control module ECU that dispose respectively on CVT variator and the engine, particularly (1), at the radius that is positioned at transmission control module TCU and engine control module ECU30 rice, be equipped with wireless transmit, the receiver of the public frequency range of duty, or be equipped with wireless transmit, the receiver of the public frequency range of switching state between work and shutoff; (2), the communication interface of said transmission control module TCU and engine control module ECU is electrically connected with computing machine respectively; (3), the gear of said CVT variator is positioned at SHIFT retaining or UP retaining or DOWN retaining or neutral N or forward gear D or retreats retaining R or the Ds retaining.
Further improvement as the proving installation of CVT variator anti-electromagnetic wave interference performance, the wireless transmit of described public frequency range, receiver are satellite-signal tower or broadcast station signal launching tower or TV and Radio Service's signal transmitting tower or commercially available intercom or mobile phone or vehicular radio radio or vehicular radio video receiver, and its working frequency range is 89KHz～1000MHz; Described commercially available intercom or mobile phone or vehicular radio radio or vehicular radio video receiver are positioned at the radius of transmission control module TCU and engine control module ECU1.5 rice; Described computing machine is a microcomputer, and said microcomputer is electrically connected with transmission control module TCU, engine control module ECU through its I/O parallel interface slot or serial line interface RS-232 or RS-485 or UPS.
The method of testing of CVT variator anti-electromagnetic wave interference performance comprises the digital signal of extracting transmission control module TCU and engine control module ECU, particularly set the timeslice that digital signal is extracted, analyzed, the time step that the timesharing of the throttle opening of gear, oil pressure, oily gentle rotating speed and the engine of a CVT variator of generation is extracted, analyzed; Be set under the different gears, when the throttle opening value of engine was worth for certain, the oil pressure when the CVT variator is up to standard in theory, the threshold value of oily gentle rotating speed produced the judgment standard of a CVT variator anti-electromagnetic wave interference performance; Gear according to the CVT variator, determine the number of times of extraction, being converted into UP retaining, SHIFT retaining for SHIFT retaining is converted into DOWN retaining, neutral N and is converted into forward gear D, neutral N and is converted into and retreats retaining R, neutral N and the mutual conversion of forward gear D, forward gear D and Ds keep off mutual conversion, each extracts circulation 〉=20 times, for forward gear D, retreat the retaining R, in the speed of a motor vehicle during, extract once during then every high jump 10Km/h from 10Km/h to high speed; The digital signal of extracting is handled, and the whole performance map, the car load that promptly generate engine drive tries hard to and fuel economy figure; Whole performance map, the car load of the engine that generates driven try hard to and the whole performance map of the theoretic engine of fuel economy figure and tested vehicle, the car load driving tries hard to and fuel economy figure compares, judge whether to possess the anti-electromagnetic wave interference performance, and send output device the result.
Further improvement as the method for testing of CVT variator anti-electromagnetic wave interference performance, described computing machine extracts the hub rotation speed digital signal of engine control module ECU, and uses it for the whole performance map, the car load driving that generate engine and try hard to and fuel economy figure; The judgment value of the anti-electromagnetic wave interference performance of the CVT variator of described tested vehicle is, the whole performance map of the engine of generation, car load drive tries hard to and whole performance map, the car load driving of the theoretic engine of fuel economy figure and tested vehicle tried hard to and deviation range≤5% of fuel economy figure after relatively; Described output device is screen display or printer.
Beneficial effect with respect to prior art is, one, be equipped with the CVT variator travel on the way in suitable vehicle on, in the certain distance of transmission control module TCU and engine control module ECU, the wireless transmit of the public frequency range of switching state between in running order or work and shutoff is set, receiver, and the gear that makes the CVT variator is when being positioned at tested retaining, the communication interface of transmission control module TCU and engine control module ECU is electrically connected with computing machine respectively, can automatically finish the test of the anti-electromagnetic wave interference performance when the CVT variator run on different operating mode, both improved the efficient of test widely, reduced tester's labour intensity, greatly promoted the homogeneity of testing standard again, stopped the human factor in the test process, the original electron archives of test have also been generated automatically, be beneficial to the production management of manufacturer and the tracking of after sale service, improved management level, labour productivity and industrialized level; They are two years old, the selection work frequency range is the wireless transmit that the satellite-signal tower of 89KHz～1000MHz or broadcast station signal launching tower or TV and Radio Service's signal transmitting tower or commercially available intercom or mobile phone or vehicular radio radio or vehicular radio video receiver are used as public frequency range, receiver, and be located in the radius of transmission control module TCU and engine control module ECU30 rice, particularly make commercially available intercom or mobile phone or vehicular radio radio or vehicular radio video receiver be positioned at the radius of transmission control module TCU and engine control module ECU1.5 rice, come to greatest extent the CVT variator of tested vehicle and transmission control module TCU and engine control module ECU are carried out electromagnetic interference, make vehicle by test, in travelling normally from now on, will never phenomenon malfunctioning or out of control take place because of being subjected to electromagnetic interference; They are three years old, adopt microcomputer and be electrically connected with transmission control module TCU, engine control module ECU through its I/O parallel interface slot or serial line interface RS-232 or RS-485 or UPS, not only simple in structure, standard universal, failure rate are low, also have advantage easy to use, that be easy to vehicle-mounted test; They are four years old, the program of the method for testing of having stationed in the microcomputer, make the proving installation can be during in different gear at the CVT variator, by the corresponding digital signal that transmission control module TCU and engine control module ECU provide, automatically make the whether qualified judgement of CVT variator anti-electromagnetic wave interference performance on the tested vehicle; Its five, method of testing also has characteristics simple, that be convenient to realize except that having contained the various operating modes that the CVT variator may move.
Description of drawings
Below in conjunction with accompanying drawing optimal way of the present invention is described in further detail.
Fig. 1 is a kind of basic structure synoptic diagram of proving installation of the present invention;
Fig. 2 is the process flow diagram of method of testing of the present invention.
Embodiment
Referring to Fig. 1, travel on suitable car 1 type in the way and be equipped with engine 2 and CVT variator 3 successively, wherein, being suitable for car 1 type is car; The gear of CVT variator 3 successively is positioned at SHIFT retaining or UP retaining or DOWN retaining or neutral N or forward gear D or retreats retaining R or the Ds retaining; Engine
2 and CVT variator 3 on dispose transmission control module TCU and engine control module ECU respectively.Also be equipped with wireless transmit, receiver 4, the computing machine 5 of public frequency range on the car, wherein, the working frequency range of the wireless transmit of public frequency range, receiver 4 is certain section among 89KHz～1000MHz, its while or priority are selected to be commercially available intercom or mobile phone or vehicular radio radio or vehicular radio video receiver, and be positioned in the radius of transmission control module TCU and engine control module ECU0.5 rice, and place switching state between duty or work and shutoff; As the wireless transmit of public frequency range, satellite-signal tower or broadcast station signal launching tower or TV and Radio Service's signal transmitting tower of receiver 4, car in apart from its 30 meters approach it; Computing machine 5 is a microcomputer, and this microcomputer is electrically connected with the communication interface of transmission control module TCU, engine control module ECU through its I/O serial line interface UPS.
Referring to Fig. 2, the method of testing of CVT variator anti-electromagnetic wave interference performance and the workflow of proving installation are as follows: successively carry out the SHIFT retaining and be converted into UP retaining, SHIFT retaining and be converted into DOWN retaining, neutral N and be converted into forward gear D, neutral N and be converted into and retreat retaining R, neutral N and the mutual conversion of forward gear D, forward gear D and Ds keep off mutual conversion in the driving process of car, circulation is carried out 20 times altogether, and in forward gear D with retreat on the retaining R, make respectively the speed of a motor vehicle from 10Km/h to the most at a high speed; And after the proving installation energising to CVT variator anti-electromagnetic wave interference performance, microcomputer presets initial value to each subroutine of having stationed in its own functional part and the internal memory, promptly set its initialization state, as giving each initial value assignment, with the timeslice extracting as digital signal, analyze with under different gears, when the throttle opening value of engine is worth for certain, the oil pressure when the CVT variator is up to standard in theory, the threshold value of oily gentle rotating speed, (step 110).Then, in step 120, microcomputer is waited for regularly look-at-me, in case regularly look-at-me is come, microcomputer just exceeds with the timeslice of setting, and extracts the digital signal (step 120) of opening value, oil pressure, oily gentle rotating speed and the hub rotation speed of gear, air throttle by engine control module ECU and transmission control module TCU.Afterwards, does microcomputer judge in step 130 whether gear only is drive shift D or retreats retaining R? if not, then continue to judge whether it has extracted 20 times, if not in step 160, then go back to step 120 and continue to extract, then turn to step 170 if extracted 20 times; If, then when 10Km/h begins every high jump 10Km/h, extract once (step 140), and judge whether the speed of a motor vehicle has reached high speed (step 150) in the speed of a motor vehicle only for drive shift D or retreat retaining R? if do not reach, then go back to step 140, if reach, then turn to step 170.In step 170, microcomputer is by calculating the digital signal of extracting, and the whole performance map, the car load that generate engine drive tries hard to and fuel economy figure.Then, microcomputer drives whole performance map, the car load of the engine that generates tries hard to and the whole performance map of the theoretic engine of fuel economy figure and tested vehicle, the car load driving tries hard to and fuel economy figure compares, the deviation range of seeing two figure whether≤5% (step 180).And send the screen display of microcomputer to show (step 190) result.
Obviously, those skilled in the art can carry out various changes and modification to the proving installation of CVT variator anti-electromagnetic wave interference performance of the present invention and method thereof and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (8)
1, a kind of proving installation of CVT variator anti-electromagnetic wave interference performance, comprise the CVT variator (3) that places on suitable car (1) type that travels on the way, and the transmission control module TCU and the engine control module ECU that dispose respectively on CVT variator (3) and the engine (2), it is characterized in that:
1.1 at the radius that is positioned at transmission control module TCU and engine control module ECU30 rice, be equipped with wireless transmit, the receiver (4) of the public frequency range of duty, or be equipped with wireless transmit, the receiver (4) of the public frequency range of switching state between work and shutoff;
1.2 the communication interface of said transmission control module TCU and engine control module ECU is electrically connected with computing machine (5) respectively;
1.3 the gear of said CVT variator (3) is positioned at SHIFT retaining or UP retaining or DOWN retaining or neutral N or forward gear D or retreats retaining R or the Ds retaining.
2, the proving installation of CVT variator anti-electromagnetic wave interference performance according to claim 1, the wireless transmit, the receiver (4) that it is characterized in that public frequency range are satellite-signal tower or broadcast station signal launching tower or TV and Radio Service's signal transmitting tower or commercially available intercom or mobile phone or vehicular radio radio or vehicular radio video receiver, and its working frequency range is 89KHz～1000MHz.
3, the proving installation of CVT variator anti-electromagnetic wave interference performance according to claim 2 is characterized in that commercially available intercom or mobile phone or vehicular radio radio or vehicular radio video receiver are positioned at the radius of transmission control module TCU and engine control module ECU1.5 rice.
4, the proving installation of CVT variator anti-electromagnetic wave interference performance according to claim 1, it is characterized in that computing machine (5) is a microcomputer, said microcomputer is electrically connected with transmission control module TCU, engine control module ECU through its I/O parallel interface slot or serial line interface RS-232 or RS-485 or UPS.
5, a kind of method of using the proving installation of CVT variator anti-electromagnetic wave interference performance as claimed in claim 1 comprises the digital signal of extracting transmission control module TCU and engine control module ECU, it is characterized in that:
Set the timeslice that digital signal is extracted, analyzed, the time step that the timesharing of the throttle opening of gear, oil pressure, oily gentle rotating speed and the engine of a CVT variator of generation is extracted, analyzed;
Be set under the different gears, when the throttle opening value of engine was worth for certain, the oil pressure when the CVT variator is up to standard in theory, the threshold value of oily gentle rotating speed produced the judgment standard of a CVT variator anti-electromagnetic wave interference performance;
Gear according to the CVT variator, determine the number of times of extraction, being converted into UP retaining, SHIFT retaining for SHIFT retaining is converted into DOWN retaining, neutral N and is converted into forward gear D, neutral N and is converted into and retreats retaining R, neutral N and the mutual conversion of forward gear D, forward gear D and Ds keep off mutual conversion, each extracts circulation 〉=20 times, for forward gear D, retreat the retaining R, in the speed of a motor vehicle during, extract once during then every high jump 10Km/h from 10Km/h to high speed;
The digital signal of extracting is handled, and the whole performance map, the car load that promptly generate engine drive tries hard to and fuel economy figure;
Whole performance map, the car load of the engine that generates driven try hard to and the whole performance map of the theoretic engine of fuel economy figure and tested vehicle, the car load driving tries hard to and fuel economy figure compares, judge whether to possess the anti-electromagnetic wave interference performance, and send output device the result.
6, the method for testing of CVT variator anti-electromagnetic wave interference performance according to claim 5, it is characterized in that computing machine extracts the hub rotation speed digital signal of engine control module ECU, and use it for the whole performance map, the car load driving that generate engine and try hard to and fuel economy figure.
7, the method for testing of CVT variator anti-electromagnetic wave interference performance according to claim 5, the judgment value of anti-electromagnetic wave interference performance that it is characterized in that the CVT variator of tested vehicle is, the whole performance map of the engine of generation, car load drive tries hard to and whole performance map, the car load driving of the theoretic engine of fuel economy figure and tested vehicle tried hard to and deviation range≤5% of fuel economy figure after relatively.
8, the method for testing of CVT variator anti-electromagnetic wave interference performance according to claim 5 is characterized in that output device is screen display or printer.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102043101A (en) * | 2009-10-19 | 2011-05-04 | 上海机动车检测中心 | Method for testing electromagnetic compatibility (EMC) of electrically-driven automobile |
| CN101661061B (en) * | 2009-09-18 | 2011-06-15 | 中国舰船研究设计中心 | Method for confirming anti-high RF interferece threshold of electronic information equipment |
| CN104122510A (en) * | 2013-04-25 | 2014-10-29 | 深圳市海洋王照明工程有限公司 | LED lamp driving power anti-electromagnetic interference test method |
| CN106771746A (en) * | 2016-12-20 | 2017-05-31 | 中国电器科学研究院有限公司 | A kind of electric automobile dynamic operation condition electromagnetic disturbance fast appraisement method |
| CN111865454A (en) * | 2020-07-01 | 2020-10-30 | 博流智能科技（南京）有限公司 | Anti-electromagnetic wave interference WiFi communication system and communication method |
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2006
- 2006-12-30 CN CN 200610155943 patent/CN101000366A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101661061B (en) * | 2009-09-18 | 2011-06-15 | 中国舰船研究设计中心 | Method for confirming anti-high RF interferece threshold of electronic information equipment |
| CN102043101A (en) * | 2009-10-19 | 2011-05-04 | 上海机动车检测中心 | Method for testing electromagnetic compatibility (EMC) of electrically-driven automobile |
| CN102043101B (en) * | 2009-10-19 | 2013-04-03 | 上海机动车检测中心 | Method for testing electromagnetic compatibility (EMC) of electrically-driven automobile |
| CN104122510A (en) * | 2013-04-25 | 2014-10-29 | 深圳市海洋王照明工程有限公司 | LED lamp driving power anti-electromagnetic interference test method |
| CN106771746A (en) * | 2016-12-20 | 2017-05-31 | 中国电器科学研究院有限公司 | A kind of electric automobile dynamic operation condition electromagnetic disturbance fast appraisement method |
| CN106771746B (en) * | 2016-12-20 | 2019-05-14 | 中国电器科学研究院有限公司 | A kind of electric car dynamic operation condition electromagnetic disturbance fast appraisement method |
| CN111865454A (en) * | 2020-07-01 | 2020-10-30 | 博流智能科技（南京）有限公司 | Anti-electromagnetic wave interference WiFi communication system and communication method |
| CN111865454B (en) * | 2020-07-01 | 2022-07-22 | 博流智能科技（南京）有限公司 | Anti-electromagnetic wave interference WiFi communication system and communication method |
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