EP1931542A1 - Procede pour essuyer une vitre, et dispositif d'essuie-glace, en particulier pour un vehicule automobile - Google Patents

Procede pour essuyer une vitre, et dispositif d'essuie-glace, en particulier pour un vehicule automobile

Info

Publication number
EP1931542A1
EP1931542A1 EP06793275A EP06793275A EP1931542A1 EP 1931542 A1 EP1931542 A1 EP 1931542A1 EP 06793275 A EP06793275 A EP 06793275A EP 06793275 A EP06793275 A EP 06793275A EP 1931542 A1 EP1931542 A1 EP 1931542A1
Authority
EP
European Patent Office
Prior art keywords
wiper
milliseconds
time period
wiper lever
reversal position
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.)
Withdrawn
Application number
EP06793275A
Other languages
German (de)
English (en)
Inventor
Hubertus Karcher
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1931542A1 publication Critical patent/EP1931542A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • B60S1/0814—Wipers or the like, e.g. scrapers characterised by the drive electrically driven using several drive motors; motor synchronisation circuits

Definitions

  • the invention relates to a method for wiping a pane as well as a window wiper device, in particular for a motor vehicle, according to the category of the independent claims.
  • a first wiper lever and a second wiper lever which oscillate between a lower, first reversal position and an upper, second reversal position in a continuous operation stage.
  • the two wiper levers are each connected to an electric motor as drive means, which are controlled by a control device such that collisions of the two wiper levers are prevented on the windshield.
  • the two wiper levers which as a rule comprise a wiper arm with a wiper blade hinged thereto, are arranged parallel to one another at the lower edge of the windshield and execute an opposite movement when a wiping cycle is carried out.
  • the wipers are parked in the lower, first reverse position in the region of the lower disk edge and at the beginning of a wiping cycle, a wiper lever in the counterclockwise direction and the other wiper lever in the clockwise direction in the direction of the upper, second reversal position. From there, the wiper levers move in the opposite direction again in the direction of the lower, first reversal position.
  • the wiper lever in the lower, first reversal position must be arranged very close to each other.
  • the wiper levers may collide as they begin to move at the same speed toward the second reversal position. Therefore, it has been proposed to use the front wiper lever with a higher to operate speed than the rear wiper lever in the direction of movement.
  • the method according to the invention with the features of the main claim has the advantage that at least one of the wiper levers begins to retard in at least one of the reversing positions, in particular a first time period is stopped. In this way, a more uniform and thus less disturbing behavior of the wiper lever on the disc and in addition, the wiping pattern on the windshield is significantly improved.
  • the first wiper lever may have already moved so far in the direction of the lower reversal position that a collision is avoided.
  • the first time period has about the same duration or even the same duration as the second time period.
  • first time span and / or the second time span are determined as a function of operating parameters, for example the vehicle speed and / or the wiper speed. In this way, wind loads and other influences can be taken into account.
  • the first and / or the second time interval are determined as a function of the amount of rain in order to achieve an optimum wiping image.
  • the first and / or second time period is between 5 and 150 milliseconds, in particular between 10 and 100 milliseconds, preferably between 20 milliseconds and 80 milliseconds, advantageously between 40 and 60 milliseconds, for example 50 milliseconds, to collisions of the two Reliably prevent wiper lever.
  • a windshield wiper device for a motor vehicle having a first drive means which drives a first wiper lever and a second drive means which drives a second wiper lever and a control device which carries out a method according to one of claims 1 to 7 in operation, has the advantage that a optimal wiping image is generated and collisions of the two wiper lever can be reliably avoided.
  • FIG. 1 shows a windshield of a motor vehicle with two wiper levers in a first reversal position in a schematic representation
  • Figure 2 shows a windshield of a motor vehicle with two wiper levers in a second reversal position in a schematic representation
  • Figure 3 shows a windshield and a windshield wiper device according to the invention in a schematic representation.
  • FIGS 1 and 2 show a windshield 10 of a motor vehicle with a mating wiper system.
  • a first wiper lever 12 is shown in a lower, first reversal position Ul.
  • the wiper lever 12 comprises a wiper blade 14, which is fastened to the free end of a wiper arm 16.
  • the wiper arm 16 is fastened with its end facing away from the wiper blade 14 on a wiper shaft 18 and is able to oscillate in operation about the axis of the wiper shaft 18, between the lower, first reversal position Ul and an upper, second reversal position U2.
  • the second wiper lever 20 is arranged, which also consists essentially of a wiper blade 22 and a wiper arm 24, which are able to oscillate in operation about a further wiper shaft 26.
  • the first wiper lever 12 and the second wiper lever 20 move about their respective wiper shafts 18, 26, namely the first wiper lever 12 counterclockwise and the second wiper lever 20 in the clockwise direction in the direction of the lateral edge 30 of the disk 10 to the upper , second reversal position U2. From there, the wiper levers 12, 20 again move in the direction of the first reversal position U1.
  • FIG. 2 shows the wiper levers 12, 20 in the second reversal position U2. This is located on the lateral edge 30 of the disc 10 in the region of the A-pillar of the motor vehicle.
  • FIG. 3 shows a schematic representation of a windshield wiper device according to the invention.
  • the first wiper lever 12 and the second wiper lever 20 are shown in the first lower reversing position Ul.
  • the first wiper lever 12 is able to oscillate about the wiper shaft 18 and the second wiper lever 20 is able to oscillate about the second wiper shaft 26.
  • the first wiper shaft 18 is formed by an electric motor as a drive means 35, which is designed as a reversing motor and the wiper shaft 18 is therefore able to drive pendulum.
  • the two drive means 35, 37 are controlled by the control device 40, which determines the position the wiper lever 12, 20 controls or at least controls.
  • the control device 40 is connected to a rain sensor 42, which gives the control device 40 a signal about the amount of rain.
  • the control device 40 is connected to a switch 44, usually a steering column switch in a motor vehicle.
  • the wiper levers 12, 20 oscillate over the disc 10.
  • first the second wiper lever 20, which is in the direction of movement moves over the window 10 in the direction of the second reversal position U2. Delayed and thus retarded by a first time interval Tl, the first wiper lever 12 then moves over the disk 10, so that a collision of the first wiper lever 12 with the second wiper lever 20 is avoided.
  • the first wiper lever 12 and the second wiper lever 20 have arrived in the second reversal position U2
  • the first wiper lever 12, which is now the wiper lever 12, 20 in the direction of movement moves again in the direction of the first reversal position U1.
  • the second wiper lever 20 After a short, second time period T2 and thus also retarding, the second wiper lever 20 also moves in the direction of the first reversal position Ul, so that a collision is avoided here. Thus, the first wiper lever 12 reaches the first reversal position U1 shortly before the second wiper lever 20.
  • the first wiper lever 12 may move in a variation of the invention after the first time period Tl at a slightly higher speed in the direction of the second reversal position U2 than the second wiper lever 20, so that both wiper levers 12, 20 reach the second reversal position U2 at about the same time ,
  • the second wiper lever 20 can move at the end of the second time period T2 at a slightly higher speed than the first wiper lever 12 in the direction of the first reversal position Ul, so that the first reversal position Ul in turn is reached by two wiper levers 12, 20 at about the same time.
  • the second wiper lever 20 moves in the direction of the second reversal plane U2, while the first wiper lever 12 is still retarded. After the first time period Tl has expired, the first wiper lever 12 also moves in the direction of the second reversal position U2. The first wiper lever 12 returns at this point immediately in the direction of the first reversal position Ul, while the second wiper lever 20 is still stopped for the second period T2 and then rushes in the direction of first reversal position Ul.
  • This method can be applied to both intermittent operation and continuous operation.
  • the first period Tl has the same duration as the second period T2.
  • the first period Tl and / or the second period T2 is about 50 milliseconds, but this may also - depending on the size of the disc 10 and other parameters - be between 5 and 150 milliseconds. Typically, however, times are chosen between 10 and 100 milliseconds, especially between 20 and 80 milliseconds. Regardless of the time periods Tl, T2 are chosen so that they are not or only slightly noticed by the driver of the motor vehicle, however, a collision of the first wiper lever 12 with the second wiper lever 20 is reliably prevented.
  • the first time period Tl and / or the second time period T2 may be selected in dependence on various operating parameters.
  • the vehicle speed and / or the speed of the wiper is relevant.
  • the current consumption of the drive means 35, 37 are used, as these represent a measure of the wind load, so the change in the wiper speed due to the wind in conjunction with the prevailing wind conditions.
  • the time periods Tl, T2 can be determined depending on the amount of rain, which is mediated by the rain sensor 42.
  • the method according to the invention can also be used in a constant velocity wiper system, as shown in FIG.
  • the wiper levers 12, 20 both move in a clockwise direction during the movement from the first reversal position U1 into the second reversal position U2 or counterclockwise in the case of a reverse movement.
  • one of the two time periods Tl, T2 can only be 0 milliseconds.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Electric Motors In General (AREA)
  • Control Of Direct Current Motors (AREA)

Abstract

L'invention concerne un procédé pour essuyer une vitre (10), en particulier un pare-brise d'un véhicule automobile. Un premier levier d'essuie-glace (12) et un deuxième levier d'essuie-glace (20) oscillent pendant une phase de fonctionnement continue entre une première position d'inversion (UI) et une deuxième position d'inversion (U2). Selon l'invention, au moins un des leviers d'essuie-glace (12, 20) est arrêté dans au moins une des positions d'inversion (U1, U2) pendant un premier intervalle de temps (T1).
EP06793275A 2005-09-26 2006-09-06 Procede pour essuyer une vitre, et dispositif d'essuie-glace, en particulier pour un vehicule automobile Withdrawn EP1931542A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005045921.8A DE102005045921B4 (de) 2005-09-26 2005-09-26 Verfahren zum Wischen einer Scheibe sowie Scheibenwischvorrichtung, insbesondere für ein Kraftfahrzeug
PCT/EP2006/066074 WO2007036414A1 (fr) 2005-09-26 2006-09-06 Procede pour essuyer une vitre, et dispositif d'essuie-glace, en particulier pour un vehicule automobile

Publications (1)

Publication Number Publication Date
EP1931542A1 true EP1931542A1 (fr) 2008-06-18

Family

ID=37436161

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06793275A Withdrawn EP1931542A1 (fr) 2005-09-26 2006-09-06 Procede pour essuyer une vitre, et dispositif d'essuie-glace, en particulier pour un vehicule automobile

Country Status (5)

Country Link
US (1) US20080216868A1 (fr)
EP (1) EP1931542A1 (fr)
JP (1) JP2009509825A (fr)
DE (1) DE102005045921B4 (fr)
WO (1) WO2007036414A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6802740B2 (ja) * 2017-03-27 2020-12-16 株式会社ミツバ ワイパ制御方法及びワイパ制御装置
US11420594B2 (en) * 2017-08-28 2022-08-23 Rosemount Aerospace Inc. Configurable variable sweep variable speed wiper system
US11364878B2 (en) * 2020-06-30 2022-06-21 Honda Motor Co., Ltd. Dual action wiper system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4431954A (en) * 1982-11-26 1984-02-14 General Motors Corporation Motor vehicle windshield wiper apparatus with storm pattern
DE3248118A1 (de) * 1982-12-24 1984-06-28 SWF-Spezialfabrik für Autozubehör Gustav Rau GmbH, 7120 Bietigheim-Bissingen Scheibenwischeranlage fuer kraftfahrzeuge
US5256950A (en) * 1990-11-29 1993-10-26 Asmo Co., Ltd. Windshield wiper assembly and synchronous signal generating device for windshield wiper
DE19963460A1 (de) * 1999-12-28 2001-07-05 Bosch Gmbh Robert Verfahren und Vorrichtung zum Wischen einer Scheibe
JP2002274329A (ja) * 2001-03-14 2002-09-25 Mitsuba Corp 対向払拭型ワイパ装置の制御方法
DE10261925A1 (de) * 2002-12-23 2004-07-01 Robert Bosch Gmbh Verfahren und Vorrichtung zur Ansteuerung einer Scheibenwischanlage in einem Kraftfahrzeug

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007036414A1 *

Also Published As

Publication number Publication date
DE102005045921B4 (de) 2014-03-06
DE102005045921A1 (de) 2007-04-05
JP2009509825A (ja) 2009-03-12
US20080216868A1 (en) 2008-09-11
WO2007036414A1 (fr) 2007-04-05

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