CN103759952A - Testing device and method for automobile wiper - Google Patents
Testing device and method for automobile wiper Download PDFInfo
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- CN103759952A CN103759952A CN201410036866.8A CN201410036866A CN103759952A CN 103759952 A CN103759952 A CN 103759952A CN 201410036866 A CN201410036866 A CN 201410036866A CN 103759952 A CN103759952 A CN 103759952A
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- wiper
- controller
- square wave
- change curve
- water arm
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000012360 testing method Methods 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 38
- 238000009434 installation Methods 0.000 claims description 15
- 238000004891 communication Methods 0.000 claims description 8
- 238000007790 scraping Methods 0.000 claims description 6
- 230000011664 signaling Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 238000009877 rendering Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000010998 test method Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/04—Wipers or the like, e.g. scrapers
- B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
- B60S1/08—Wipers or the like, e.g. scrapers characterised by the drive electrically driven
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Electric Motors In General (AREA)
Abstract
The invention discloses a testing device and method for an automobile wiper. The testing device comprises an encoder, a controller, a motor driver, an upper computer and at least six surface-mounted sensors. Each surface-mounted sensor is connected with the controller so as to detect the position of a wiper arm and transmit the position information to the controller. The controller is connected with the motor driver. The encoder is connected with the controller and used for detecting the wiping speed V of a wiper motor and transmitting the wiping speed V to the controller. The controller is communicated with the upper computer. The wiper is utilized for testing the wiper so as to obtain the optimum operating parameter of the wiper.
Description
Technical field
The invention belongs to proving installation and the method for automobile component, be specifically related to a kind of proving installation and method of automobile wiper.
Background technology
Automobile wiper, as important safe auxiliary accessories, is being guaranteed the good visual field of driver, guarantees that sleety weather safe driving aspect plays very important effect.The performance of wiper depends on material, sealing, and the factors such as motor torque, temperature need to be tested and could determine best running parameter.Do not have at present target equipment to be used for testing the quality of wiper, and provide optimum working parameter.Adopt manual type rough check operation effectiveness, hands-on background that cannot this wiper of effectively evaluating, affect the driving safety that sleet freezes under inclement weather such as grade.
Summary of the invention
The proving installation and the method that the object of this invention is to provide a kind of automobile wiper, utilize these apparatus and method to test wiper, to obtain the best job parameter of wiper.
The proving installation of automobile wiper of the present invention, comprise scrambler, controller, motor driver, host computer and at least six patch sensors, each patch sensor is connected with controller respectively, to detect, scrape the position of water arm and send this positional information to controller, controller is connected with motor driver, scrambler is connected with controller, and for detection of the wiper speed V of Wiper motor and send controller to, controller and host computer communicate.
Described controller comprises microprocessor, power module, communication module and memory module, and the model of microprocessor is Megal128, and power module, communication module and memory module are connected with microprocessor respectively.
Described patch sensor is capacitive transducer, or is photoelectric sensor, or is Hall element.
The method of testing of automobile wiper of the present invention, comprises the following steps:
The acquisition methods of described step 4 Plays voltage square wave dutycycle Φ change curve and standard angle speed W change curve is:
By motor driver, export different voltage square wave dutycycle Φ, and the positional information that water arm is scraped in collection according to patch sensor, by controller, calculate the angular velocity W corresponding with this voltage square wave dutycycle Φ, voltage square wave dutycycle Φ selects sampled point in 0~100% scope, and host computer is drawn out normal voltage duty cycle square wave Φ change curve and standard angle speed W change curve according to voltage square wave dutycycle Φ sampled point and corresponding angular velocity W.
The proving installation of automobile wiper of the present invention and method, can be by testing and control wiper at the angular velocity of diverse location, realize the change curve test that wiper speed changes the voltage square wave dutycycle Φ controlled quentity controlled variable of test and motor driver output, and automatic record test data, obtain the best wiper rate curve of wiper, automatically deposit single-chip microcomputer in to analyze and set suitable wiper speed, by the communication with host computer, send to host computer to analyze the whether satisfied cleanliness of scraping of wiper process of wiper test parameter, impact on driver's seat, the impact of wiper commutation process to wiper structure, the requirement of the aspect such as Motor torque and efficiency.The present invention can be used for simulating the sunykatuib analysis of car load mains voltage variations to wiper wiper process influence, and simple in structure, dependable performance, test are accurate, practical.
Accompanying drawing explanation
Fig. 1 is the structured flowchart (containing Wiper motor) of the proving installation of automobile wiper of the present invention;
Fig. 2 is the use constitutional diagram (not containing host computer) of the proving installation of automobile wiper of the present invention;
Fig. 3 is the instantaneous motion schematic diagram of wiper;
Fig. 4 is the schematic diagram of the standard angle speed W change curve of wiper;
Fig. 5 is the process flow diagram that in the present invention, wiper is controlled software.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Existing automobile wiper has two kinds of structures, and a kind of is that two of automobile wiper scrape water arm 4 and by two Wiper motors 7, driven respectively, and another kind is that two of automobile wiper scrape water arm 4 and driven by four-bar mechanism by a Wiper motor 7.The proving installation of automobile wiper of the present invention and method are all applicable to the automobile wiper of above two kinds of structures.
embodiment mono-
When two of automobile wiper scrape water arm 4 and are driven by two Wiper motors 7 respectively:
As depicted in figs. 1 and 2, the proving installation of this automobile wiper comprises scrambler 8, controller 6, motor driver 5, host computer 9 and six patch sensors 3, each patch sensor 3 is connected with controller 6 respectively, to detect, scrape the position of water arm 4 and send this positional information to controller 6, controller is connected with motor driver, scrambler 8 is connected with controller 6, and for detection of the wiper speed V of Wiper motor 7 and send controller 6 to, controller 6 communicates with host computer 9.
As shown in Figure 2, described controller 6 comprises microprocessor 6a, power module 6b, communication module 6c and memory module 6d, and the model of microprocessor 6a is Megal128, and power module 6b, communication module 6c are connected with microprocessor 6a respectively with memory module 6d.At test phase, microprocessor 6a is responsible for searching according to the angular velocity W that scrapes water arm 4 the voltage square wave dutycycle Φ of corresponding motor driver 5, in calibration phase, microprocessor 6a searches the corresponding angular velocity W that scrapes water arm 4 according to the voltage square wave dutycycle Φ of motor driver 5; By memory module 6d, the angular velocity W of water arm 4 will be scraped, the wiper speed V of the voltage square wave dutycycle Φ of motor driver 5, Wiper motor 7 deposits USB flash disk 10 in.By communication module 6c angular velocity W, voltage square wave dutycycle Φ, wiper speed V Data Dynamic, send to host computer 9.
As shown in Figure 5, the flow process that wiper is controlled software is as follows: software is the reset mode of monitor controller 6 first, enters the I/O interface initialization that system connects simultaneously.The program of inquiry controller 6, after the voltage square wave dutycycle Φ of the motor driver 5 that 6 fetch programs of controller are set, send to driver 6, change the voltage square wave dutycycle Φ of motor driver 5 to control Wiper motor 7 speed changes or constant motion, after the position signalling of patch sensor 3 being detected, the actual angular speed W that scrapes water arm 4 with realization according to the voltage square wave dutycycle Φ that scrapes the angular velocity W change motor driver 5 of water arm 4 is by curvilinear motion.As shown in Figure 3 and Figure 4, controller 6 is according to the control program of microprocessor 6a, and in the present embodiment, patch sensor 3 adopts Hall element.Controlling Wiper motor 7 segmentations accelerates according to different acceleration, when scraping water arm 4 arrival A position, patch sensor 3 detects pulse signal and to obtain, scrapes the positional information (Y) of water arm 4 and send to controller 6, the change curve of the driving voltage duty cycle square wave Φ that 6 fetch programs of controller are set, Wiper motor 7 starts constant speed, when arriving B position, controller 6 receives the pulse signal of patch sensor 3, and constant motion finishes.
The method of testing of automobile wiper of the present invention, comprises the following steps:
The acquisition methods of the normal voltage duty cycle square wave Φ change curve in above-mentioned steps four and standard angle speed W change curve is:
By the different voltage square wave dutycycle Φ of motor driver 5 output, and gather the positional information of scraping water arm 4 according to patch sensor 3, by controller 6, calculate the angular velocity W corresponding with this voltage square wave dutycycle Φ, voltage square wave dutycycle Φ selects sampled point in 0~100% scope, host computer 9 is drawn out normal voltage duty cycle square wave Φ change curve and standard angle speed W change curve according to voltage square wave dutycycle Φ sampled point and corresponding angular velocity W, referring to Fig. 4.
embodiment bis-
When two of automobile wiper scrape water arm 4 and are driven by four-bar mechanism by a Wiper motor 7:
The difference of the proving installation of automobile wiper of the present invention and embodiment mono-is: the quantity of scrambler is one.
The method of testing of automobile wiper of the present invention is with the difference of embodiment mono-: motor driver 5 is connected with Wiper motor 7, the receiving unit of six patch sensors 3 is arranged on respectively on front windshield 1, and corresponding three patch sensors 3 of each wiper 2, and the receiving unit of each patch sensor 3 scrapes in scope corresponding wiper 2, except starting point and terminal, take and scrape on the same circumference that the tie point of water arm 4 and four-bar mechanism is round dot, etc. arc length, arrange, the radiating portion of patch sensor 3 is separately fixed to two to be scraped on water arm 4, scrambler 8 is arranged on Wiper motor 7.
Claims (5)
1. the proving installation of an automobile wiper, it is characterized in that: comprise scrambler (8), controller (6), motor driver (5), host computer (9) and at least six patch sensors (3), each patch sensor (3) is connected with controller (6) respectively, to detect, scrape the position of water arm (4) and send this positional information to controller (6), controller is connected with motor driver, scrambler (8) is connected with controller (6), for detection of the wiper speed V of Wiper motor (7) and send controller (6) to, controller (6) communicates with host computer (9).
2. the proving installation of automobile wiper according to claim 1, it is characterized in that: described controller (6) comprises microprocessor (6a), power module (6b), communication module (6c) and memory module (6d), the model of microprocessor (6a) is Megal128, and power module (6b), communication module (6c) and memory module (6d) are connected with microprocessor (6a) respectively.
3. the proving installation of automobile wiper according to claim 1 and 2, is characterized in that: described patch sensor (3) is capacitive transducer, or is photoelectric sensor, or is Hall element.
4. a method of with the proving installation of automobile wiper as claimed in claim 1 or 2, wiper being tested, is characterized in that, comprises the following steps:
Step 1, motor driver (5) is connected with Wiper motor (7), the receiving unit of each patch sensor (3) is arranged on respectively on front windshield (1), and at least three patch sensors of each wiper (2) correspondence (3), make receiving unit the scraping in scope at corresponding wiper (2) of each patch sensor (3), except starting point and terminal, take and scrape the first-class arc length layout of same circumference that water arm (4) lower end is the center of circle, the radiating portion of patch sensor (3) is separately fixed to two to be scraped on water arm (4), scrambler (8) is arranged on Wiper motor (7),
Step 2, patch sensor (3) Real-time Collection is scraped the positional information of water arm (4) and is sent controller (6) to, scrambler (8) is measured in real time the wiper speed V of Wiper motor (7) and is sent controller (6) to, when controller (6) detects after the position signalling of patch sensor (3), controller (6) basis scrapes the positional information of water arm (4) and the wiper speed V of Wiper motor (7) calculates the angular velocity W that scrapes water arm (4), and change according to this angular velocity W the voltage square wave dutycycle Φ that motor driver (5) is exported, to scrape the angular velocity W of water arm (4) simultaneously, the voltage square wave dutycycle Φ of motor driver (5), the wiper speed V of Wiper motor (7) sends to host computer (9) in real time,
Step 3, host computer (9) real-time rendering actual angular speed W change curve and voltage square wave dutycycle Φ change curve;
Step 4, host computer (9) are according to the comparison between actual angular speed W change curve and standard angle speed W change curve, and the comparison between virtual voltage duty cycle square wave Φ change curve and normal voltage duty cycle square wave Φ change curve, the best job parameter of acquisition wiper.
5. the method for testing of automobile wiper according to claim 4, is characterized in that: the acquisition methods of step 4 Plays voltage square wave dutycycle Φ change curve and standard angle speed W change curve is:
By motor driver (5), export different voltage square wave dutycycle Φ, and according to patch sensor (3), gather the positional information scrape water arm (4), by controller (6), calculate the angular velocity W corresponding with this voltage square wave dutycycle Φ, voltage square wave dutycycle Φ selects sampled point in 0~100% scope, and host computer (9) is drawn out normal voltage duty cycle square wave Φ change curve and standard angle speed W change curve according to voltage square wave dutycycle Φ sampled point and corresponding angular velocity W.
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107131995A (en) * | 2017-06-30 | 2017-09-05 | 吉林大学 | A kind of Wiper pressing force distribution air tunnel testing device and wiper control method |
CN108876958A (en) * | 2017-05-10 | 2018-11-23 | 罗伯特·博世有限公司 | wiper state display method |
WO2019163692A1 (en) * | 2018-02-22 | 2019-08-29 | 株式会社デンソー | Wiper control device |
CN110987386A (en) * | 2019-11-11 | 2020-04-10 | 中国商用飞机有限责任公司 | Performance detection apparatus and method for windshield wiper system |
CN112082746A (en) * | 2020-09-07 | 2020-12-15 | 中车长春轨道客车股份有限公司 | Motor train unit wiper swing abnormity monitoring and self-optimizing system |
CN112477812A (en) * | 2019-09-12 | 2021-03-12 | 通用汽车环球科技运作有限责任公司 | Windscreen wiper assembly |
CN116754876A (en) * | 2023-07-07 | 2023-09-15 | 上海禹点电子科技有限公司 | Automatic wiper testing system, method, equipment and storage medium |
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Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108876958A (en) * | 2017-05-10 | 2018-11-23 | 罗伯特·博世有限公司 | wiper state display method |
CN107131995A (en) * | 2017-06-30 | 2017-09-05 | 吉林大学 | A kind of Wiper pressing force distribution air tunnel testing device and wiper control method |
WO2019163692A1 (en) * | 2018-02-22 | 2019-08-29 | 株式会社デンソー | Wiper control device |
CN111741877A (en) * | 2018-02-22 | 2020-10-02 | 株式会社电装 | Windscreen wiper control device |
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CN112477812A (en) * | 2019-09-12 | 2021-03-12 | 通用汽车环球科技运作有限责任公司 | Windscreen wiper assembly |
CN112477812B (en) * | 2019-09-12 | 2023-06-09 | 通用汽车环球科技运作有限责任公司 | Windshield wiper assembly |
CN110987386A (en) * | 2019-11-11 | 2020-04-10 | 中国商用飞机有限责任公司 | Performance detection apparatus and method for windshield wiper system |
CN112082746A (en) * | 2020-09-07 | 2020-12-15 | 中车长春轨道客车股份有限公司 | Motor train unit wiper swing abnormity monitoring and self-optimizing system |
CN116754876A (en) * | 2023-07-07 | 2023-09-15 | 上海禹点电子科技有限公司 | Automatic wiper testing system, method, equipment and storage medium |
CN116754876B (en) * | 2023-07-07 | 2024-03-19 | 上海禹点电子科技有限公司 | Automatic wiper testing system, method, equipment and storage medium |
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