WO1996019366A1 - Schaltungsanordnung, insbesondere für eine wischanlage für kraftfahrzeugscheiben - Google Patents
Schaltungsanordnung, insbesondere für eine wischanlage für kraftfahrzeugscheiben Download PDFInfo
- Publication number
- WO1996019366A1 WO1996019366A1 PCT/DE1995/001636 DE9501636W WO9619366A1 WO 1996019366 A1 WO1996019366 A1 WO 1996019366A1 DE 9501636 W DE9501636 W DE 9501636W WO 9619366 A1 WO9619366 A1 WO 9619366A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- circuit
- input
- switching
- wiper
- circuit arrangement
- Prior art date
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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S318/00—Electricity: motive power systems
- Y10S318/02—Windshield wiper controls
Definitions
- Circuit arrangement in particular for a wiper system for motor vehicle windows
- the invention relates to a circuit arrangement, in particular for a wiper system for motor vehicle windows, according to the preamble of claim 1.
- wiper systems for motor vehicle windows in motor vehicles which have an electrical wiper motor.
- control devices which use so-called rain sensors to detect an amount of moisture impinging on the motor vehicle from the outside.
- the control device provides different control signals for the wiper motor.
- the wiper motor is preceded by a step circuit, which enables the wiper motor to be switched on differently, for example at two different speeds.
- the wiper motor is activated via the control unit and the tap changer connected to a voltage source and on the other hand realizes a winding changeover of the wiper motor, which permits a different wiper speed of the wiper motor.
- control unit fails, it is no longer possible to actuate the wiper motor and thus the wiper systems of the motor vehicle. If the control unit fails, for example, during the intended use of the motor vehicle at a time when it is raining, the wiper system cannot be operated. The journey would have to be interrupted until the rain ended.
- the circuit arrangement according to the invention with the features mentioned in claim 1 offers the advantage that an actuation of the wiper system of the motor vehicles is possible even if the control unit fails. Because the control outputs of the control device are connected in parallel with a switching means, via which a voltage source can be connected to the inputs of the tap changer assigned to the outputs of the control device, the defective control device can be bridged in a simple manner, so that actuation of the wiper system is possible. Because of this additional manual intervention possibility in the circuit arrangement for controlling the wiper motor, an emergency operation of the wiper system can be maintained when the control unit has failed. By ensuring the wiper function of the wiper system in this way, for example a journey interrupted due to a failed control unit for the wiper system can be continued.
- Figure 1 shows a circuit arrangement for securing a single-stage emergency operation
- Figure 2 shows a circuit arrangement for securing a two-stage emergency operation in a first embodiment
- Figure 3 shows a circuit arrangement for securing a two-stage emergency operation in a further embodiment.
- FIG. 1 shows a circuit arrangement, generally designated 10, for a wiper system of a motor vehicle.
- the circuit arrangement 10 has a control device 12, a step circuit 14, a wiper motor 16 and a switching means 18.
- a first output 20 of the control device 12 is connected to a first input 22 of the step circuit 14.
- a second output 24 of the control device 12 is connected to a second input 26 of the tap changer 14.
- the stage circuit 14 has a further input 28, which is connected to a voltage source, preferably a motor vehicle battery Ub a t.
- Two further outputs 30 and 32 of the tap changer 14 are connected to the wiper motor 16.
- the wiper motor 16 is provided with different brush arrangements, which are used to generate different speeds of the wiper motor 16.
- a first brush arrangement for example for a lower speed, is connected to the output 30 and a second brush arrangement, for example for a higher speed, is connected to the output 32 of the step circuit 14.
- a first switching means for example an electromagnetic relay 34 and a second switching means, for example likewise an electromagnetic relay 36, are arranged within the step circuit 14.
- the excitation winding 38 of the relay 34 is connected on the one hand to the input 22 of the tap changer 14 and on the other hand to a ground potential.
- a switch contact 40 of the relay 38 connects a center contact 42 to the ground potential in the rest position.
- An excitation winding 44 of the second relay 36 is connected to the second input 26 of the tap changer 14 on the one hand and to the ground potential on the other hand.
- a switch contact 46 of the relay 36 is connected in the rest position to the center contact 42 and the output 30 of the step circuit 14.
- the first input 22 of the step circuit 14 is also connected to a first contact 48 of a switching element 50 of the switching means 18.
- a second contact 52 of the switching element 50 is connected to the voltage source U ⁇ at bound. In the rest position, the switching element 50 is opened, that is to say the contacts 48 and 52 are not connected to one another.
- the circuit arrangement shown in FIG. 1 performs the following function:
- either the first output 20 or the second output 24 is connected to the voltage source U ⁇ at by means of the control device 12, which has a control circuit (not to be considered here in greater detail), depending on an external moisture accumulation on the motor vehicle. If, for example, a low level of moisture is detected, the voltage source is present at the first output 20, so that the excitation winding 38 of the relay 34 is energized via the connection to the first input 22 of the step circuit 14. The switch contact 40 then establishes a connection between the center contact 42 and the voltage source U Da t, which is connected to the input 28 of the tap changer 14. An operating voltage Uj-, and thus to the first output 30 of the tap changer, is switched through via the switching contact 46 of the second relay 36 which is in the rest position. The first switching stage of the wiper motor 16 connected to the output 30 is thus energized, so that it actuates the wiper system of the motor vehicle with its assumed low wiper speed.
- the control device 12 connects the voltage source U Da t simultaneously with the first output 20 and the second output 24.
- the excitation winding 44 of the relay 36 is energized via the connection of the second input 26 of the step circuit 14 to the second output 24 of the control device 12.
- the switching contact 46 of the relay 36 connects the center contact 42 to the output 32 of the tap changer 14.
- the relays 34 and 36 are of every possibility of ver ⁇ Binding of the voltage source U Da t separately, so that a function of the wiper motor 16 is no longer possible.
- the switching means 18 may, preferably as a steering column switch in a Kraft ⁇ vehicle is formed by operating the switching member 50, the contacts 48 and 52 connect with each other, so that the voltage source U bat m ⁇ c * em input 22 of the stage circuit 14 is connected .
- the excitation winding 38 of the relay 34 can in turn be energized, so that the switch contact 40 connects via the input 28 of the voltage source U Da t m; * -t cier produces the first switching stage of the Wi ⁇ shear motor 16.
- the wiper motor 16 can thus, despite the failure of the control unit 12, it can be operated at least in its first switching stage, so that an emergency operation function is ensured.
- FIG. 2 shows a further development of the circuit arrangement 10 shown in FIG. 1, the same parts being provided with the same reference symbols and not being explained again.
- the switching means 18 has a second switching element 54 here.
- a contact 56 of the switching element 54 is connected to the second input 26 of the step circuit 14.
- Another contact 58 of the switching element 54 is connected to the voltage source U ⁇ at.
- a diode 60 is connected between the inputs 22 and 26 of the stage circuit 14, the cathode 62 of which is connected to the input 22 and the anode 64 of which is connected to the input 26.
- the circuit arrangement 10 shown in FIG. 2 performs the following function:
- the normal function corresponds to the circuit arrangement 10 shown in FIG. 1 and will not be explained again here.
- energization of the excitation winding 38 of the relay 34 is again possible via the switching element 50, so that the wiper motor 10 with its first switching stage, which is controlled via the output 30 of the stage circuit 14, is operable.
- the wiper motor 10 is also to be operated in the emergency operation situation concerned here, in its second switching stage, that is to say in the example at the faster wiper speed, this is over switching the switching means 18 to its switching element 54 is possible.
- the switching element 54 is actuated, the contacts 56 and 58 are connected to one another, so that the voltage source U Da t is switched through to the second input 26 of the step circuit 14.
- the diode 60 is switched to pass, so that the voltage source U ⁇ at is also connected to the first input 22 of the step circuit 14 via the diode 60.
- the stage circuit 14 operates as in regular operation, that is, the switching contacts 40 and 46 are switched so that a connection between the input 28 and the output 32 of the stage circuit 14 is switched, so that the second switching stage, that is for a higher wiper speed, the wiper motor 16 is connected to the voltage source U ⁇ at.
- An emergency operation function for the wiper motor 16 is therefore possible by means of the switching means 18 both in its first switching stage and in its second switching stage.
- the diode 60 connected between the inputs 22 and 26 ensures that when the switching element 50 is actuated, the operating voltage Uj-, the voltage source U ⁇ at - ⁇ ur the second input 26 of the step circuit 14 is blocked. This is therefore only at the first input 22. If the switching element 54 is actuated, however, the diode 60 is switched to pass, so that the operating voltage U D can be present at the inputs 22 and 26 at the same time.
- FIG. 3 shows a further variant of the circuit arrangement 10, in which an emergency function of the wiper motor 16 is implemented for both switching stages is.
- the relay 36 has a further switch contact 66 which is designed as a make contact.
- a normally closed contact 68 of the switching contact 66 is connected to the input 28 of the tap changer 14 and thus to the voltage source Ubat.
- the make contact 70 of the switch contact 66 is connected to the first input 22 of the tap changer 14.
- the additional arrangement of the switching contact 66 of the relay 36 ensures that when the switching element 54 of the switching means 18 is actuated, the second switching stage of the wiper motor 16 can be switched on.
- the voltage source Ubat ⁇ of the excitation winding 44 of the relay 36 is connected via the closed switching element 54.
- the switch contact 46 then connects the center contact 42 to the output 32 of the tap changer 14.
- the switch contact 66 connects the normally closed contact 68 to the make contact 70, so that the first input 22 is connected to the input 28 of the tap changer 14 and thus also the operating voltage
- the voltage source U a t is applied.
- the switching contact 40 then connects the input 28 to the center contact 42, so that the operating voltage U b is present at the output 32 of the tap changer 14.
- a third relay can be provided, whose field winding is connected in parallel to the field winding 44 of the relay 36. This additional relay would then connect the input 28 to the input 22 of the tap changer 14.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Direct Current Motors (AREA)
- Control Of Electric Motors In General (AREA)
- Instrument Panels (AREA)
- Body Structure For Vehicles (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
- Window Of Vehicle (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/765,868 US5825148A (en) | 1994-12-19 | 1995-11-23 | Circuit arrangement, particularly for a wiper arrangement for motor vehicle windshields |
PL95320728A PL177902B1 (pl) | 1994-12-19 | 1995-11-23 | Urządzenie sterujace, zwłaszcza wycieraczkami szyb pojazdu mechanicznego |
JP51940396A JP3784410B2 (ja) | 1994-12-19 | 1995-11-23 | ワイパー装置のための回路装置 |
DE59505329T DE59505329D1 (de) | 1994-12-19 | 1995-11-23 | Schaltungsanordnung, insbesondere für eine wischanlage für kraftfahrzeugscheiben |
EP95936955A EP0796182B1 (de) | 1994-12-19 | 1995-11-23 | Schaltungsanordnung, insbesondere für eine wischanlage für kraftfahrzeugscheiben |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4445107A DE4445107A1 (de) | 1994-12-19 | 1994-12-19 | Schaltungsanordnung, insbesondere für eine Wischanlage für Kraftfahrzeugscheiben |
DEP4445107.5 | 1994-12-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996019366A1 true WO1996019366A1 (de) | 1996-06-27 |
Family
ID=6536142
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1995/001636 WO1996019366A1 (de) | 1994-12-19 | 1995-11-23 | Schaltungsanordnung, insbesondere für eine wischanlage für kraftfahrzeugscheiben |
Country Status (8)
Country | Link |
---|---|
US (1) | US5825148A (de) |
EP (1) | EP0796182B1 (de) |
JP (1) | JP3784410B2 (de) |
KR (1) | KR100377671B1 (de) |
DE (2) | DE4445107A1 (de) |
ES (1) | ES2129863T3 (de) |
PL (1) | PL177902B1 (de) |
WO (1) | WO1996019366A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5350708B2 (ja) * | 2008-08-01 | 2013-11-27 | 株式会社東海理化電機製作所 | ワイパー制御装置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4286200A (en) * | 1979-06-08 | 1981-08-25 | Facet Enterprises, Inc. | Universal intermittent windshield wiper circuit |
US4859867A (en) * | 1988-04-19 | 1989-08-22 | Donnelly Corporation | Windshield moisture sensing control circuit |
US5239244A (en) * | 1992-03-03 | 1993-08-24 | Libbey-Owens-Ford Co. | Vehicle interface for moisture-sensitive wiper control |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3611094A (en) * | 1970-07-17 | 1971-10-05 | Gen Motors Corp | Dc motor switching arrangement |
US3671691A (en) * | 1970-12-04 | 1972-06-20 | Tokai Rika Co Ltd | Multiple switch construction |
JPS60140401A (ja) * | 1983-12-27 | 1985-07-25 | Nippon Denso Co Ltd | 車両用制御装置 |
US4689535A (en) * | 1984-12-26 | 1987-08-25 | Asmo Co., Ltd. | Concealed wiper system |
US4673853A (en) * | 1985-01-18 | 1987-06-16 | Asmo Co., Ltd. | Concealed wiper system |
DE3615531A1 (de) * | 1986-05-07 | 1987-11-12 | Swf Auto Electric Gmbh | Schaltanordnung fuer wenigstens einen elektrischen verbraucher eines kraftfahrzeuges |
-
1994
- 1994-12-19 DE DE4445107A patent/DE4445107A1/de not_active Withdrawn
-
1995
- 1995-11-23 US US08/765,868 patent/US5825148A/en not_active Expired - Fee Related
- 1995-11-23 EP EP95936955A patent/EP0796182B1/de not_active Expired - Lifetime
- 1995-11-23 PL PL95320728A patent/PL177902B1/pl not_active IP Right Cessation
- 1995-11-23 WO PCT/DE1995/001636 patent/WO1996019366A1/de active IP Right Grant
- 1995-11-23 JP JP51940396A patent/JP3784410B2/ja not_active Expired - Fee Related
- 1995-11-23 ES ES95936955T patent/ES2129863T3/es not_active Expired - Lifetime
- 1995-11-23 KR KR1019970704115A patent/KR100377671B1/ko not_active IP Right Cessation
- 1995-11-23 DE DE59505329T patent/DE59505329D1/de not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4286200A (en) * | 1979-06-08 | 1981-08-25 | Facet Enterprises, Inc. | Universal intermittent windshield wiper circuit |
US4859867A (en) * | 1988-04-19 | 1989-08-22 | Donnelly Corporation | Windshield moisture sensing control circuit |
US5239244A (en) * | 1992-03-03 | 1993-08-24 | Libbey-Owens-Ford Co. | Vehicle interface for moisture-sensitive wiper control |
Also Published As
Publication number | Publication date |
---|---|
KR980700201A (ko) | 1998-03-30 |
ES2129863T3 (es) | 1999-06-16 |
PL177902B1 (pl) | 2000-01-31 |
EP0796182A1 (de) | 1997-09-24 |
JPH10510779A (ja) | 1998-10-20 |
DE4445107A1 (de) | 1996-06-20 |
PL320728A1 (en) | 1997-10-27 |
EP0796182B1 (de) | 1999-03-10 |
KR100377671B1 (ko) | 2003-06-09 |
JP3784410B2 (ja) | 2006-06-14 |
US5825148A (en) | 1998-10-20 |
DE59505329D1 (de) | 1999-04-15 |
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