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WO2003047928A2 - Systeme automatique d'essuie-glace pour pare-brise - Google Patents

Systeme automatique d'essuie-glace pour pare-brise Download PDF

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Publication number
WO2003047928A2
WO2003047928A2 PCT/IN2002/000227 IN0200227W WO03047928A2 WO 2003047928 A2 WO2003047928 A2 WO 2003047928A2 IN 0200227 W IN0200227 W IN 0200227W WO 03047928 A2 WO03047928 A2 WO 03047928A2
Authority
WO
WIPO (PCT)
Prior art keywords
automated system
rainfall
wiping
wiper
anyone
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/IN2002/000227
Other languages
English (en)
Other versions
WO2003047928A3 (fr
Inventor
Anish Lohokare
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Indian Institute of Technology Bombay
Original Assignee
Indian Institute of Technology Bombay
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Indian Institute of Technology Bombay filed Critical Indian Institute of Technology Bombay
Priority to AU2002361491A priority Critical patent/AU2002361491A1/en
Publication of WO2003047928A2 publication Critical patent/WO2003047928A2/fr
Publication of WO2003047928A3 publication Critical patent/WO2003047928A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • B60S1/0818—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like
    • 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
    • B60S1/0818—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like
    • B60S1/0822—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like characterized by the arrangement or type of detection means
    • 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
    • B60S1/0818—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like
    • B60S1/0822—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like characterized by the arrangement or type of detection means
    • B60S1/0825—Capacitive rain sensor
    • 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
    • B60S1/0818—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like
    • B60S1/0822—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like characterized by the arrangement or type of detection means
    • B60S1/0859—Other types of detection of rain, e.g. by measuring friction or rain drop impact

Definitions

  • the present invention relates to an automated system for wiping of windshields of automobiles and the like and in particular to an automated wiping system with means for variation of mode and/or intensity of wiping based on the rainfall.
  • the system is also integrated with manual option to change the mode of variable wiping.
  • Prior Art on this subject is varied and may be classified under five major technology options and are based on the basic principle of detecting water droplets on the windscreen with an appropriate sensor and then transmitting the signal to a device to actuate the wiping system.
  • US Patent numbers 5773946, US 3786330 and US 5432415 based on the acoustic principles use sound receivers and transmitters to detect and measure the frequency of impact on the vehicle's surface due to raindrops which is translated to the amount and intensity of rainfall.
  • US Patent No. 5119002 based on pressure transducers determine the amount of rainfall depending upon the force with the raindrops impinge on the transducers on the windscreens.
  • US Patent No. 3643145 uses principles based on current variation that determine the amount of rainfall depending on the variation of current drawn by the wiper motor due to change in wetting condition of the windshield.
  • Japanese Patent JP 5254397A2 and US Patent 6002229 are based on the raindrop sensors that detect water and activate the wiper system.
  • the circuit is momentarily disabled for a new measurement in certain type of sensors resulting in poor response.
  • Some automatic wiper systems are intermittent with limited speed variation or sometimes no speed variation. In several cases the wiper remains continuously on.
  • optical sensors under certain situations are unable to differentiate other entities on the glass as rainwater thereby affecting the functioning of the automated wiper system.
  • Varying rainwater drop sizes and their frequency for the same amount of rain can cause may cause inconsistent responses in case of transducer-based sensors.
  • Vibration based sensors may adversely get affected by disturbances caused by extraneous mechanical vibrations.
  • a small part of the screen used for detection of rain may not be a good representative of the whole screen in case of optical sensors.
  • Another object of the invention is to provide for an automated wiper system with combination of options such as of intermittent operation with dwell-time variation between two wiping cycles of the wiper motor or continuous operation with speed control depending on the rainfall intensity and frequency.
  • Yet another object of the invention is to provide for an automated wiper system with a suitable combination of both dwell time variation between two wiping cycles of the wiper and speed control of the wiper motor or continuous operation with speed control depending on the rainfall intensity and frequency.
  • Yet another object of the invention is to provide for an automated wiper system that is free from adverse effects of extraneous and environmental factors such as sound, impurities in the rainwater, presence of foreign bodies in the rainwater, dirt on the windshield, smog, etc.
  • Another object of the present invention to provide for a system of indicating intensity of rainfall especially for use in vehicles and the like to actuate wiper systems.
  • an automated system for wiping of windshields of automobiles and the like comprising:
  • a rain sensor assembly comprising of rain water measuring device and/or a low rainfall detector
  • a detector selection control circuit operatively connected to said sensor assembly and adapted to generate signals based on output of said rain water measuring device and/or low rainfall detector to selectively actuate or deactivate a wiper motor driving the wipers on said screen.
  • the said detector selection control circuit comprises means to compare the signal output of said rainwater measuring device and the low rainfall detector to selectively actuate or deactivate said wiper motor directly or to actuate said wiper motion through a wiper operation circuit based on the amount of rainfall.
  • said rainwater-measuring device comprise a calibrated collection vessel and a water level measuring means. While the calibrated rain collection ' vessel can ' be of any desired shape preferably it is obtained of cylindrical shape.
  • the calibrated collection vessel is specially developed and comprises plurality of perforations of predetermined number and sizes on the vessel wall at specific heights to enable outflow of the collected water at a specified rate for varying amount and intensity of rainfall and is further provided with an overflow outlet at the top indicative of the possible maximum change in the water level in the collection vessel.
  • the level of the rainwater in the collection vessel is monitored by means of a float operatively connected to means for transferring the level changes into electrical signals.
  • the float is linked to a support via a spring to act as a damper of any stray vibrations.
  • the cross sectional area and shape of the float are made compatible with that of the collection vessel.
  • V the submerged volume of the float is governed by the relationship V ⁇ A c x H /10 where A c is the cross sectional area of the float.
  • the spring is governed by the relationship 0 ⁇ k ⁇ V p w g / H where H is the height of the vessel up to the overflow point, p w is the density of water, g is acceleration due to gravity, k is the spring constant of the spring holding the float.
  • the float is adapted to drive a slider on a high resistance wire that is connected across a battery so that changes in the float moves the slider across the wire thereby translating into a change of the detected resistance of the wire to be fed as input into the said detector selection control circuit.
  • the said calibrated rain collection vessel is calibrated to indicate a maximum volume for the measurement of collected rainwater of A/12 where A is the cross sectional area of the vessel in cm 2 .
  • the calibration can be based on the relationship H 2 /> 36/ ⁇ where H is the height of the vessel in cm. Up to the overflow point.
  • the rainwater-measuring device used in the system can comprise rainwater flow measuring device.
  • the flow-measuring device can be a rotameter, piston type area flowmeter and the like.
  • the rainwater flow measuring device has a sensitivity of less than or equal to A/30 cm 3 /sec.
  • the automated wiper system is provided with means for manual switchover from intermittent wiping and continuous wiping as and when required.
  • the low rainfall detector can comprise a detector positioned on the windshield, which can be activated by falling droplets of rain on windscreen to indicate or generate signals for low rainfall.
  • the above system thus provides for the automated wiping of the windshields with start, stop and variation of wiping speed through combination of intermittent operation with dwell time variation between two wiping cycles of the wiper or a suitable combination of both dwell time variation between two wiping cycles of the wiper and speed control of the wiper motor, or continuous operation with speed control depending on the rainfall intensity including the manual option to change the transition from intermittent to continuous wiping speeds.
  • FIG. 1 illustrates the automatic wiper system in accordance with the present invention.
  • Figure 2 illustrates an embodiment of the rain sensor assembly used in the system.
  • FIG. 3A illustrates and 3B illustrates the collection vessel with perforations used in the system.
  • Figure 4 illustrates another embodiment of the rain sensor assembly.
  • the system basically comprises of the rain sensor (100) providing for rain water measuring and/or the low rain fall detector which is operatively connected to the detector selection control circuit (8) which in turn is connected to the wiper motor (12) directly as well as through the wiper operation circuit (1000) for the desired selective operation of the wiper.
  • the system provides for measuring of the rain water and/or detection of the low rain fall by said rain sensor assembly and said rain sensor assembly operatively connected to a detector control circuit which is adapted to generate output signals based on the rain sensor assembly output to selectively actuate or deactivate water motor driving wipers directly or through the wiper operation circuit.
  • rain sensor assembly can be obtained under various embodiments, which are now discussed hereunder: Reference is invited to Figure 2, which illustrates an embodiment of the rain sensor (100A).
  • rain sensor assembly basically comprises of the rain water measuring device and low rain fall detector.
  • the rain-measuring device comprises of the calibrated collection vessel (1) with a plurality of perforations (13), which is operatively connected to a wiper level measuring means. Rain water falling on a part of the vehicle is canalised to the rainwater collection vessel (1).
  • the rainwater collection vessel (1) is provided with perforation(s) (13) at specific heights that enable outflow of the water at a specified rate collected in the collection vessel at varying amount and intensity of rainfall.
  • the residence time of the water level at each of the overflow points is dependent and is controlled by the number and size of perforation(s) (13).
  • the Level Detector (7) consists of a float (102), slider (105), battery (130) and high resistance wire (107).
  • the high resistance wire (107) is connected across the battery (130) as shown.
  • 201 is the point of maximum potential on the high resistance wire (107).
  • the point of minimum potential on the high resistance wire (107) is 202.
  • the float (102) is so designed to minimize any leakage of water between the float wall and the inner surface of the vessel.
  • the slider (105) slides over the high resistance wire (107) and is connected to the spring (104) and float (102) as shown. As the float (102) moves up with increase in the level of the collected rainwater, the slider (105) rises and the voltage (V25) between the slider (105) and the point 202 increases.
  • a damping device (50) is provided consisting of Spring (104), Support (106), Constriction (103)
  • the assembly of the spring (104), support (106) and the constriction (103) acts as a damping device for the float (102).
  • the spring (104) is suspended from the support (106) by one end and the other end is attached to the slider (105) as shown in fig 3.
  • the constriction (103) enables the float (102) to move only in the direction of the vertical axis of the vessel.
  • the support (106), slider (105), spring (104), constriction (103), constriction (103), high resistance wire (107) and float (102) are integrated into a single assembly.
  • a Damping Device (5) may be optionally used to damp the vibrations of the vessel (1).
  • the Low Rainfall Detector (6) is also shown in Figure 3. This is provided for detecting low rainfall.
  • the two electrodes (3 and 4) with a gap between them are embedded to the windshield located in the area of windshield that is within the wiping zone of the wiper. When a water drop comes within the gap of the electrodes the electrical properties between the electrodes (3 and 4) changes. These changes are detected by the low rainfall detector (6) and the signal is fed to the Detector Selection Control Circuit (8).
  • the calibrator container (1) is comprised of perforations of desired dimensions and numbers to indicate the intensity of the flow of rain in said container. Embodiments of such perforated construction of container vessel are illustrates in figures 3A and 3B.
  • FIG 4 illustrates an alternative embodiment of the rain sensor (100B) for use in the system of the invention.
  • rainwater flow measuring device (4A) is operatively connected to the detector control circuit (8).
  • the low rainfall detector (6) similar to the earlier embodiment is provided on the windscreen as explained in relation to the rain sensor (100A) earlier. Output of this detector is again fed into the detector selection control circuit.
  • the said flow-measuring device (4A) can be a rotameter, piston type area flowmeter, etc.
  • low rainfall detector (6) For detecting low rainfall, low rainfall detector (6) and the two electrodes (3 and 4) are used in the same manner as described previously.
  • the low rainfall detector (6) gives its signal to Detector Selection Control Circuit (8).
  • This circuit selects the output of the Low Rainfall Detector (6) or that of the Level Detector (7) / Flow Measuring Device (4A) based on a predetermined set threshold. In case of very low rainfall, where the output is lower than the threshold, the output of the Low Rainfall Detector (6) is selected in preference to the output of the Level Detector (7).
  • the output of the Level Detector (7) / Flow Measuring Device (4A) is selected.
  • the selected output is fed to the Wiper Operation Circuit (1000).
  • the Detector Selection Control Circuit (8) gives the voltage (V25) to the Wiper Operation Circuit (1000).
  • the Wiper Operation Circuit (1000) consists of the following components:
  • the comparator (9) drives the Intermittent Wiper Control Circuit (10). This circuit changes the dwell time between wiping cycles at a predetermined speed of the wiper motor based on the intensity of the rainfall. Alternatively, a suitable combination of increase in wiper motor speed and reduction in dwell time may be used as the input to the Intermittent Wiper Control Circuit (10). If the input to the Comparator (9) exceeds the predetermined threshold, then the comparator (9) drives the Continuous Wiper Control Circuit (11 ).
  • the Wiper Operation Circuit (1000) is not activated unless there is at least some output from the low rainfall detector (6). When it stops raining the water in the collection vessel (1) drains out and the water between the wires (3 and 4) is wiped off, no signal is received by Detector Selection Control Circuit (8) and the wiper operation stops. In the embodiment involving the flow-measuring device (100B) the water in the flow-measuring device (4A) flows out and the water between the electrodes (3 and 4) is wiped off, no signal is received by Detector Selection Control Circuit (8) and the wiper operation stops.
  • the invention also provides options for manual control of the operations and to change the threshold (300) based on user preferences for intermittent and continuous wiping of the windshield.
  • the area chosen for the collection of rainwater was 120cm 2 .
  • Three cylindrical tubes of 1cm diameter were used as collection vessels with a range of perforations varying in sizes and numbers at different heights shown in figures 3a and 3b.
  • the vessel are calibrated, for example, to give a near linear variation of flow rate of the water collected into the vessel with height by so choosing the number of holes, size of the holes and the gap between them which was adjusted to be 1.33 cm 3 /s flow rate of the collected water per cm of height in the collection vessel.
  • An overflow outlet at the height of 7.5 cm corresponded to a flow rate of water at 10 cm 3 /s.
  • the wiper would operate in a continuous mode at maximum speed.
  • the threshold between intermittent and continuous wiping was set at 5 cm 3 /s.
  • wiper motor had a speed of 30 rpm and the speed increases with increase in flow rate.
  • the motor had a speed of 45 rpm for a flow rate of 7.5 cm 3 /s and 60 rpm for a flow rate of 10 cm 3 /s.
  • Table 1 illustrates the results on wiping speeds with associated delay times obtained for water overflow rates of 2.2 cm 3 /s, 6 cm 3 /s, and 8 cm 3 /s with the collection vessels described in figures 3a and 3b.
  • the automated windshield wiper operates reliably under varied rainfall intensities, and self adjusts the speed of the motor and frequency of wiping and at the same time is independent of the impurities presents in the rain water, the temperature of rainwater, as well as the pattern or drop size of the water on the windshield. Its function is not affected by vibrations and does not get activated erroneously by any extraneous effects such as vibrations, sounds, smog, particles, etc.
  • the system provides for options of continuous speed variation as well as intermittent operation depending on rainfall conditions or user preferences.
  • the power consumption is also optimal

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

L'invention se rapporte à un système automatique permettant d'essuyer les pare-brise d'automobiles et autres véhicules semblables, et plus particulièrement à un système d'essuie-glace automatique doté d'un dispositif de variation de mode et/ou d'intensité d'essuyage en fonction des chutes de pluie. Ce système est également équipé d'une option manuelle qui permet de changer le mode d'essuyage variable. Ladite invention porte aussi sur un système d'essuyage automatique pourvu d'une combinaison d'options telles que le fonctionnement intermittent avec une variation de temps de passage entre deux cycles d'essuyage du moteur d'essuie-glace ou le fonctionnement continu avec contrôle de la vitesse en fonction de l'intensité et de la fréquence des chutes de pluie. Ce système d'essuie-glace automatique peut être conçu de manière à pouvoir convenir à n'importe quel type de véhicule et n'est pas gêné par des effets indésirables tels que des facteurs étrangers ou des facteurs liés à l'environnement tels que le son, les impuretés présentes dans l'eau, la présence de corps étrangers dans l'eau, la saleté sur les pare-brise, le brouillard, etc. Ce système automatique d'essuyage des pare-brise d'automobiles et autres similaires comprend : un ensemble détecteur de pluie comportant un dispositif de mesure d'eau de pluie et/ou un détecteur de faible chute de pluie ; un circuit de contrôle de sélection de détecteur opérativement relié audit ensemble détecteur et conçu de manière à générer des signaux en fonction de la sortie dudit dispositif de mesure d'eau de pluie et/ou dudit détecteur de faible chute d'eau afin d'activer/désactiver de manière sélective un moteur d'essuie-glace actionnant les essuie-glace dur ledit écran.
PCT/IN2002/000227 2001-12-04 2002-12-03 Systeme automatique d'essuie-glace pour pare-brise Ceased WO2003047928A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002361491A AU2002361491A1 (en) 2001-12-04 2002-12-03 Automatic windshield wiper system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN1152MU2001 2001-12-04
IN1152/MUM/01 2001-12-04

Publications (2)

Publication Number Publication Date
WO2003047928A2 true WO2003047928A2 (fr) 2003-06-12
WO2003047928A3 WO2003047928A3 (fr) 2003-07-24

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AU (1) AU2002361491A1 (fr)
WO (1) WO2003047928A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109334609A (zh) * 2017-11-21 2019-02-15 徐育 一种雨刮器智能控制方法及装置
CN110356364A (zh) * 2019-06-21 2019-10-22 一汽轿车股份有限公司 基于检测adc变化值和抗混叠滤波技术的自动控制雨刮方法
CN114030443A (zh) * 2019-12-31 2022-02-11 厦门雅迅网络股份有限公司 基于电子地平线的雨刷控制方法、终端设备及存储介质

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US5453676A (en) 1994-09-30 1995-09-26 Itt Automotive Electrical Systems, Inc. Trainable drive system for a windshield wiper
US5773946A (en) 1996-03-14 1998-06-30 Montero; Fabian Apparatus for and method of automatically controlling operation and speed of windshield wipers
EP1015286A1 (fr) 1997-09-16 2000-07-05 Gentex Corporation Capteur d'humidite et detecteur de buee sur un pare-brise
US6160369A (en) 1999-10-12 2000-12-12 E-Lead Electronic Co., Ltd. Optically operated automatic control system for windshield wipers

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US4710878A (en) 1985-04-11 1987-12-01 Toyota Jidoshi Kabushiki Kaisha Apparatus and a method for controlling wiper
US4827198A (en) 1988-02-09 1989-05-02 General Motors Corporation Vehicle windshield and wiper with rain sensor
US4942349A (en) 1988-10-14 1990-07-17 Millerd Donald L Control system for operating a window wiper in response to water moisture
US5117168A (en) 1988-12-19 1992-05-26 Fujitsu Ten Limited Windshield wiper control apparatus
JPH0545250A (ja) 1991-08-20 1993-02-23 Nkk Corp 光ｔｄｒによる計測方法及び装置
US5453676A (en) 1994-09-30 1995-09-26 Itt Automotive Electrical Systems, Inc. Trainable drive system for a windshield wiper
US5773946A (en) 1996-03-14 1998-06-30 Montero; Fabian Apparatus for and method of automatically controlling operation and speed of windshield wipers
EP1015286A1 (fr) 1997-09-16 2000-07-05 Gentex Corporation Capteur d'humidite et detecteur de buee sur un pare-brise
US6097024A (en) 1997-09-16 2000-08-01 Gentex Corporation Moisture sensor and windshield fog detector
US6160369A (en) 1999-10-12 2000-12-12 E-Lead Electronic Co., Ltd. Optically operated automatic control system for windshield wipers

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109334609A (zh) * 2017-11-21 2019-02-15 徐育 一种雨刮器智能控制方法及装置
WO2019101055A1 (fr) * 2017-11-21 2019-05-31 徐育 Procédé et appareil de commande intelligente de balai d'essuie-glace
EP3715191A4 (fr) * 2017-11-21 2021-08-11 Yu Xu Procédé et appareil de commande intelligente de balai d'essuie-glace
US11718272B2 (en) 2017-11-21 2023-08-08 Yu Xu Windscreen wiper smart control method and apparatus
CN110356364A (zh) * 2019-06-21 2019-10-22 一汽轿车股份有限公司 基于检测adc变化值和抗混叠滤波技术的自动控制雨刮方法
CN114030443A (zh) * 2019-12-31 2022-02-11 厦门雅迅网络股份有限公司 基于电子地平线的雨刷控制方法、终端设备及存储介质

Also Published As

Publication number Publication date
WO2003047928A3 (fr) 2003-07-24
AU2002361491A1 (en) 2003-06-17
AU2002361491A8 (en) 2003-06-17

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