Electrical Patents (Class 15/250.17)
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Patent number: 11541846Abstract: An electromagnetic wiper system for a windshield of a vehicle includes a linear actuator, a wiper-arrangement, and control circuitry. The linear actuator includes at least one guide rail having permanent magnets and an electromagnetic moving block. The electromagnetic moving block includes at least one perforation that surrounds the at least one guide rail and at least one electromagnetic coil that surrounds the at least one perforation. The wiper-arrangement includes a wiper arm and a wiper blade, wherein at least the wiper arm is coupled to the electromagnetic moving block. The control circuitry controls a linear motion of the electromagnetic moving block along the at least one guide rail to steer the wiper arm that is coupled to the electromagnetic moving block back and forth across a length of the windshield to the windshield, wherein the electromagnetic moving block induces minimal friction during the linear motion.Type: GrantFiled: January 11, 2021Date of Patent: January 3, 2023Assignee: Tesla, Inc.Inventors: Nicolas Clift, Maithreya Kedambadi Prasanna, Gonzalo Espinoza Graham
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Patent number: 11338775Abstract: A vehicle wiper control apparatus monitors whether warpage occurs in a wiper strip made of a rubber-elastic material that is provided in a wiper blade. When a wiper of a vehicle is turned off and the warpage occurs in the wiper strip, the control apparatus controls the wiper mechanism to move the wiper blade to a parking position thereby preventing deformation of the wiper strip and maintaining the performance thereof.Type: GrantFiled: April 24, 2019Date of Patent: May 24, 2022Assignees: Hyundai Motor Company, Kia Motors CorporationInventor: In Tae Chun
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Patent number: 11312336Abstract: A method of operating a rear wiper system of a vehicle that includes monitoring an operational status of a full display mirror system of the vehicle, and automatically activating the rear wiper system when the full display mirror system is switched from an active mode to an inactive mode.Type: GrantFiled: March 28, 2019Date of Patent: April 26, 2022Assignee: HONDA MOTOR CO., LTD.Inventors: Erik F. de Almeida, Douglas R. Kaltenmark, Osamu Tsurumiya
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Patent number: 10923985Abstract: The invention relates to a wiper motor (10), with a shaft (28) for driving a wiper arm (1), wherein the shaft (28) projects through an opening (29) of a housing (15) and wherein in the region of the opening (29) the shaft (28) is mounted radially in a bore in an at least substantially sleeve-shaped element (30; 30a), wherein the sleeve-shaped element (30; 30a) is fixed at least axially in the region of the housing (15), and wherein the sleeve-shaped element (30; 30a) has at least two different cross-sections (33; 33a, 34), a first cross-section (33; 33a) which is designed to protrude axially at least through the opening (29) and a second cross-section (34) which is designed to be axially fixed within said opening (29) or within a receiving space (25) of said housing (15).Type: GrantFiled: December 12, 2017Date of Patent: February 16, 2021Assignee: Valeo Systèmes d'EssuyageInventor: Siegfried Stefani
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Patent number: 10821940Abstract: Wheel (100) for a vehicle window wiper drive system, said wheel comprising electrical contact means (400), a first and a second electrical contact means (410, 411) of said electrical contact means being in electrical continuity, and the first and the second electrical contact means being for a respective slider (200a, 200b), said wheel being characterized in that the angular extension (?) of said electrical contact means in the plane of the wheel is strictly less than 360° and said electrical contact means being situated on a face of the wheel intended to receive a linkage.Type: GrantFiled: March 7, 2017Date of Patent: November 3, 2020Assignee: Valeo Systèmes d'EssuyageInventors: Alain Servin, Laurent Collinet, Stephane Beauchamps
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Patent number: 10608501Abstract: An electronic module is provided including: a circuit board including conductive pads and a sense pad coupled to an output signal; an actuator having a wiper member accommodating a conductive wiper, the wiper having a first end arranged to slidably engage the sense pad and a second end arranged to slidably engage at least one of the conductive pads; and at least one gap disposed to partition the sense pad into segments along an axial movement path of the conductive wiper, the segments being electrically connected to each other to have the same electric potential.Type: GrantFiled: May 24, 2017Date of Patent: March 31, 2020Assignee: Black & Decker Inc.Inventors: Erik A. Ekstrom, Michael D. Grove, Alpay Hizal, Alexandros T. Theos
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Patent number: 10571639Abstract: The present disclosure provides an optical module comprising: a photoelectric conversion unit, a first demodulation circuit, and a second demodulation circuit; the first demodulation circuit and the second demodulation circuit are respectively connected to the photoelectric conversion unit; the photoelectric conversion unit is configured to convert the received optical signal into an electrical signal; the first demodulation circuit is configured to demodulate an electrical signal converted by the photoelectric conversion unit and generate a high-frequency electrical signal; the second demodulation circuit is configured to demodulate an electrical signal converted by the photoelectric conversion unit and generate a low-frequency electrical signal.Type: GrantFiled: March 18, 2019Date of Patent: February 25, 2020Assignees: Hisense Broadband Multimedia Technologies Co., Ltd., Hisense Broadband Multimedia Technologies, Ltd.Inventors: Qiang Zhang, Qisheng Zhao
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Patent number: 10479326Abstract: A motor-powered windshield scourer for any type of a motor-powered vehicle and or motor craft. The motorized windshield scourer may have a motor propelled appendages or a singular appendage that have replaceable scouring attachments joined to the appendages. The motor that propels the appendages can be positioned anywhere on or in the motor vehicle/craft, whether under the hood, in the cabin or elsewhere. The motor driven appendages with joined scouring attachments may be mounted on the windshield of the vehicle directly opposite of the windshield wiper blades. When turned on, the motor may move the appendages with joined attachments in a side to side and/or up and down motion across the windshield. The appendages may include an unpliable metal such as: steel, titanium, tungsten, or inconel, and the scouring attachments may include nylon scouring pads or a vinyl coated mesh attached to and covering rubber or foam.Type: GrantFiled: July 13, 2018Date of Patent: November 19, 2019Inventor: Vincent J. LoSacco
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Patent number: 10106127Abstract: A windshield wiper system for an aircraft is provided and includes a motor, an output shaft, a wrap spring and crank rocker mechanism (WSCRM) to which the motor and the output shaft are coupled and a controller. By way of the WSCRM, first directional rotation input to the WSCRM from the motor via a two-stage gear reduction is converted such that the output shaft drives wiper blade oscillation through a first sweep angle and second directional rotation input to the WSCRM from the motor is converted such that the output shaft drives wiper blade oscillation through a second sweep angle. The controller is configured to control the motor such that the first directional rotation is continuously or non-continuously input during first or second flight conditions, respectively, and the second directional rotation is continuously input during third flight conditions.Type: GrantFiled: March 10, 2016Date of Patent: October 23, 2018Assignee: GOODRICH AEROSPACE SERVICES PRIVATE LIMITEDInventors: Santyar Srivatsa, Guru Prasad Mahapatra
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Patent number: 10017159Abstract: An electric motor is subjected to PWM duty control based on a target speed (tgt spd) set according to a position of a wiper blade. After a deceleration start position of wiping operation, the electric motor is driven at a PWM duty value (sld sta duty×Ksd) obtained by multiplying a PWM duty value (sld sta duty) at the deceleration start position by a predetermined deceleration coefficient (Ksd) set according to the blade position. The deceleration coefficient (Ksd) is set according to the position of the wiper blade based on a ratio (tgt spd/pek tgt spd) between the target speed (pek tgt spd) of the wiper blade at the start of deceleration and the target speed (tgt spd) of the wiper blade.Type: GrantFiled: June 27, 2016Date of Patent: July 10, 2018Assignee: MITSUBA CORPORATIONInventor: Toshiyuki Amagasa
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Patent number: 10005430Abstract: When the number of times of vehicle speed detections reaches a prescribed times “n”, a DR-side wiper blade is moved in such a way that when the front end side of a lip reaches a lower-side stop position APS1, the DR-side wiper blade is temporarily moved to a lower limit position for stop EPSL, then moved to an upper-side stop position APS2 and stopped there, and in such a way that when the front end side of the lip reaches an upper-side stop position APS2, the DR-side wiper blade is moved temporarily to an upper limit position for stop EPSU, then moved to the lower-side stop position APS1 and stopped there.Type: GrantFiled: May 11, 2015Date of Patent: June 26, 2018Assignee: Mitsuba CorporationInventor: Takeshi Ikeda
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Patent number: 9975523Abstract: An emergency windshield wiper system that attaches to the windshield of a vehicle. The system comprises of a platform that is used to secure a battery, a motor, a control, a pair of suction cups, an oscillating gear and an arm that holds a windshield wiper. The suction cups are positioned at opposite ends of the platform so that a center of gravity is created at a midpoint of the platform. The oscillating gear is positioned at the midpoint of the platform and it connects via a connector gear rod to a motor gear that is attached to the motor. The battery, motor and the control are operatively connected. The oscillating gear attaches to the arm. The windshield wiper inserts within the arm of the windshield wiper system.Type: GrantFiled: November 10, 2017Date of Patent: May 22, 2018Inventor: Jacqueline De La Concepcion Canela
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Patent number: 9969357Abstract: Methods, systems, and vehicles are provided for controlling intermittent operation of windshield wiper systems for vehicles. In accordance with one embodiment, a control system for a vehicle windshield wiper system includes one or more detection units and a processor. The one or more detection units are coupled to a user interface disposed onboard the vehicle, and are configured to detect an amount of time pertaining to a position or engagement of a user interface for the wiper system. The processor is coupled to the one or more detection units, and is configured to at least facilitate updating a time step for intermittent operation for the wiper system based at least in part on the amount of time.Type: GrantFiled: July 27, 2016Date of Patent: May 15, 2018Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Daniel P. Carlesimo, Marcelo V. Lazarini
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Patent number: 9973115Abstract: Method for detecting the position of a wiper arm (5) for a system (1) for wiping a vehicle window (3), comprising the steps consisting in: a) measuring or estimating (35) at least one parameter for determining the maintenance or service position, b) comparing (37) the measured or estimated value of said parameter with a reference value or a range of reference values, and c) determining, from the results of the comparison, whether the wiper arm is in maintenance or service position.Type: GrantFiled: September 24, 2014Date of Patent: May 15, 2018Assignee: Valeo Systèmes d'EssuyageInventors: Romain Adeline, Aymeric Koniec
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Patent number: 9709142Abstract: A wave energy conversion system is provided including a pod, multi-radius energy transmission mechanism, and an electrical generating device. The pod is rotatably supported by a platform structure and the multi-radius energy transmission mechanism is in mechanical communication with the pod. The multi-radius energy transmission mechanism is configured to transmit a variable torque over a range of motion and is in mechanical communication with the electrical generating device.Type: GrantFiled: April 9, 2015Date of Patent: July 18, 2017Assignee: Brimes Energy, Inc.Inventor: Ramuel Maramara
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Patent number: 9527481Abstract: A vehicle wiper device includes: a first blade having an operating range that includes an upper mid region of a vehicle windshield; a second blade having an operating range that includes a lower region of the operating range of the first blade; a cleaning-liquid feeding unit; a blade driving unit that causes each blade to reciprocate; and a controller that controls operation of the cleaning-liquid feeding unit and operation of the blade driving unit. The controller performs the control such that, after a series of normal operation in which the first blade and the second blade reciprocate while ejecting the cleaning liquid has been completed, additional movement operation is performed in a state where feeding of the cleaning liquid from the cleaning-liquid feeding unit is stopped.Type: GrantFiled: September 14, 2015Date of Patent: December 27, 2016Assignee: FUJI JUKOGYO KABUSHIKI KAISHAInventors: Kazuhiro Kaminaga, Satoru Iwata
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Patent number: 9403508Abstract: An electric motor is subjected to PWM duty control based on a target speed (tgt spd) set according to a position of a wiper blade. After a deceleration start position of wiping operation, the electric motor is driven at a PWM duty value (sld sta duty×Ksd) obtained by multiplying a PWM duty value (sld sta duty) at the deceleration start position by a predetermined deceleration coefficient (Ksd) set according to the blade position. The deceleration coefficient (Ksd) is set according to the position of the wiper blade based on a ratio (tgt spd/pek tgt spd) between the target speed (pek tgt spd) of the wiper blade at the start of deceleration and the target speed (tgt spd) of the wiper blade.Type: GrantFiled: July 10, 2013Date of Patent: August 2, 2016Assignee: MITSUBA CORPORATIONInventor: Toshiyuki Amagasa
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Patent number: 8800095Abstract: The present invention relates to a wiper apparatus in which it is easy to replace a wiper blade without this leading to any erroneous operation. When a wiper operation has been stopped by a wiper driving apparatus 31, the wiper driving apparatus causes the wiper arms to first move to a housing position and then stops the wiper arms. When wiper blades are to be replaced, an IG switch 33 is turned off during a wiper operation. If the IG switch 33 is turned off while the wiper arms are within a first stopping range, then the wiper arms are stopped at that position and the blades are replaced. If the wiper arms are stopped outside the first stopping range, then they are first moved to a bottom inverted position or a housing position and are then stopped.Type: GrantFiled: November 21, 2012Date of Patent: August 12, 2014Assignee: Mitsuba CorporationInventors: Toshiyuki Amagasa, Hiroji Okabe
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Patent number: 8701240Abstract: A lens cleaning mechanism according to the present invention comprises: a cleaning unit (1a) that covers a standby area being a part of the surface of a front lens element (11), as the standby area is pressed, the cleaning unit (1a) being rotationally moved along the surface of the front lens element (11) to slide over the entire surface of the front lens element (11), including a remaining part of the surface and the standby area; a drive unit (3) connected to a holding member (1b); and a control unit (2) for rotationally moving the cleaning unit (1a) by driving the drive unit (3).Type: GrantFiled: August 22, 2008Date of Patent: April 22, 2014Assignee: NEC Display Solutions, Ltd.Inventors: Shunsuke Okazawa, Takayuki Okada
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Patent number: 8652264Abstract: A method and apparatus for preventing the dispensing of a washer fluid onto a rear windshield upon detecting the disablement of the rear wiper arm is provided. The disablement of the rear wiper arm may be caused by the movement of the rear windshield from a fully closed position to an open position.Type: GrantFiled: March 16, 2012Date of Patent: February 18, 2014Assignee: Honda Motor Co., Ltd.Inventors: Dave Peterson, John Sgueglia
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Patent number: 8453290Abstract: The present invention relates to a wiper apparatus in which it is easy to replace a wiper blade without this leading to any erroneous operation. When a wiper operation has been stopped by a wiper driving apparatus 31, the wiper driving apparatus causes the wiper arms to first move to a housing position and then stops the wiper arms. When wiper blades are to be replaced, an IG switch 33 is turned off during a wiper operation. If the IG switch 33 is turned off while the wiper arms are within a first stopping range, then the wiper arms are stopped at that position and the blades are replaced. If the wiper arms are stopped outside the first stopping range, then they are first moved to a bottom inverted position or a housing position and are then stopped.Type: GrantFiled: December 26, 2007Date of Patent: June 4, 2013Assignee: Mitsuba CorporationInventors: Toshiyuki Amagasa, Hiroji Okabe
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Publication number: 20130081221Abstract: The present invention relates to a wiper apparatus in which it is easy to replace a wiper blade without this leading to any erroneous operation. When a wiper operation has been stopped by a wiper driving apparatus 31, the wiper driving apparatus causes the wiper arms to first move to a housing position and then stops the wiper arms. When wiper blades are to be replaced, an IG switch 33 is turned off during a wiper operation. If the IG switch 33 is turned off while the wiper arms are within a first stopping range, then the wiper arms are stopped at that position and the blades are replaced. If the wiper arms are stopped outside the first stopping range, then they are first moved to a bottom inverted position or a housing position and are then stopped.Type: ApplicationFiled: November 21, 2012Publication date: April 4, 2013Inventors: Toshiyuki AMAGASA, Hiroji OKABE
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Publication number: 20130042426Abstract: A vehicle wiper assembly includes a wiper blade configured to wipe a surface, an armature, and an actuator. The armature has a first end spaced from a second end, and is coupled with the wiper blade at the first end, and coupled to a pivot mechanism at the second end. The pivot mechanism is configured to allow the wiper blade to articulate about the second end in a direction substantially away from the surface and between a wiping position and a parked position. The actuator is provided in mechanical communication with the armature and is configured to receive an electrical actuation signal to transition the wiper blade between a wiping position and the parked position, where the wiper blade is in contact with the surface while in the wiping position, and is separated from the surface while in the parked position.Type: ApplicationFiled: August 17, 2011Publication date: February 21, 2013Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: SCOTT R. WEBB, NICHOLAS W. PINTO, IV, PAUL W. ALEXANDER, XIUJIE GAO, WENDELL G. SUMMERVILLE, SCOTT P. CHARNESKY, THOMAS W. COX, KHRISTOPHER S. LEE
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Patent number: 8347448Abstract: An output shaft of a wiper motor is connected to a wiper to transmit a rotational force of the wiper motor to the wiper to reciprocally swing the wiper between an upper return position and a lower return position in response to forward and backward rotations of the output shaft upon energization of the wiper motor. When the wiper is stopped at the lower return position, the control unit executes a stop position holding control operation in such a manner that the control unit controls a rotational direction of the wiper motor to apply a rotational force to the wiper in a downward direction and controls the rotational force of the wiper motor based on a speed of the vehicle to substantially maintain the wiper at the lower return position.Type: GrantFiled: November 30, 2009Date of Patent: January 8, 2013Assignee: Asmo Co., Ltd.Inventor: Takashi Natsume
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Patent number: 8327497Abstract: A method of operating a wiper system on a window of a vehicle. The method comprising: setting a park position for a wiper to one of a standard park position or a high park position, where the standard park position locates a wiper blade of the wiper closer to a bottom edge of the window; activating the wiper system to cause the wiper to be pivoted back and forth between an in-wipe position and an out-wipe position; deactivating the wiper system; if the park position is set to the standard park position when the wiper system is deactivated, stopping movement of the wiper when the wiper blade is in the standard park position; and if the park position is set to the high park position when the wiper system is deactivated, stopping movement of the wiper when the wiper blade is in the high park position.Type: GrantFiled: August 25, 2010Date of Patent: December 11, 2012Assignee: GM Global Technology Operations LLCInventors: Thomas W. Cox, Mark K. Denison, Marcia R. Ganske
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Patent number: 8296896Abstract: Provided is a wiper driving apparatus for an automobile. The wiper driving apparatus includes: a housing; a driving motor; a worm wheel installed in the housing to be rotated by the driving motor, connected to a wiper arm, and having protrusions formed on a surface thereof; and a clutch member eccentric with respect to the center of the worm wheel to be rotatably installed in the housing such that power supply to the driving motor is selectively turned on or off according to the position of the rotating clutch member relative to the housing, wherein the clutch member has an engagement unit which is caught by the protrusions of the worm wheel when the worm wheel is rotated in a first direction, and is not caught by the protrusions of the worm wheel when the worm wheel is rotated in a second direction.Type: GrantFiled: August 10, 2006Date of Patent: October 30, 2012Assignee: Dongyang Mechatronics CorpInventors: Sung-Jin Hong, Kwang-Hyun Jung
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Patent number: 8156605Abstract: The invention relates to a drive device (10), especially for a window wiping device, comprising at least one shaft (13). Until now, only stop mechanisms which are very complicated in terms of production are known, with which a wiper arm can be blocked in the idle position thereof. In order to reduce this complexity, the inventive drive device comprises a strip and/or a cord which can be wound around the at least one shaft (13) with a defined tension.Type: GrantFiled: November 8, 2006Date of Patent: April 17, 2012Assignee: Robert Bosch GmbHInventors: Jan Dietrich, Achim Hawighorst
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Patent number: 8136197Abstract: A method and apparatus for preventing the dispensing of a washer fluid onto a rear windshield upon detecting the disablement of the rear wiper arm is provided. The disablement of the rear wiper arm may be caused by the movement of the rear windshield from a fully closed position to an open position.Type: GrantFiled: April 4, 2008Date of Patent: March 20, 2012Assignee: Honda Motor Co., Ltd.Inventors: Dave Peterson, John Sgueglia
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Patent number: 8052802Abstract: A rear wiper assembly that moves to a parked position located out of contact with the rear windshield upon the occurrence of a specified condition. Upon resuming the normal operation of the rear wiper assembly the rear wiper arm waits a first delay prior to moving to a flip position located on the rear windshield and then waits a second delay prior to resuming its normal oscillation across the rear windshield.Type: GrantFiled: April 4, 2008Date of Patent: November 8, 2011Assignee: Honda Motor Co., Ltd.Inventors: Michael Binfet, John Sgueglia, Dave Peterson
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Patent number: 7895702Abstract: In order to ensure, when the drive (1) is in a non-operating state, a self-locking that counters a change in position of the wiper (5), an electronically implemented self-locking is provided. To this end, the controller (S) of the wiper system monitors the wiper (5) during the non-operating state of the drive (1) by evaluating the position sensor signals for a change in position and, in response to the position monitoring, activates the drive (1) in order to return the wiper (5) into a set position (U, P).Type: GrantFiled: September 25, 2006Date of Patent: March 1, 2011Assignee: Robert Bosch GmbHInventors: Florian Tisch, Hubertus Karcher
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Patent number: 7777993Abstract: A wiper control circuit is provided for invalidating the state of a wiper operation switch to suppress unnecessary operations of a wiper in an automotive vehicle upon starting an engine using a remote control engine starter. The wiper control circuit is configured to suppress generation of a sneak current and thereby reduce the likelihood that an erroneous operation instruction is received.Type: GrantFiled: October 5, 2007Date of Patent: August 17, 2010Assignee: Sumitomo Wiring Systems, Ltd.Inventor: Kazunori Sakamoto
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Patent number: 7707680Abstract: The device comprises an output gearwheel (6), a gear cover (4) having a plastic sleeve open toward the output gearwheel (6) and a park position switch having first contacts mounted for rotation and second contacts fixed to the gear cover (4) and a driving means. The invention provides that the sleeve is embodied as a contact sleeve (8) having contact tracks (31b, 53a, 31), particularly along the inner surface of the contact sleeve (8). To enable sliding contact on rotation, the cylindrical member (10) of a driving disk (9) extends into the contact sleeve (8).Type: GrantFiled: June 2, 2004Date of Patent: May 4, 2010Assignee: Robert Bosch GmbHInventors: Achim Hawighorst, Armin Stubner
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Publication number: 20090254219Abstract: Methods and an apparatus are provided for controlling a wiper system of a type that can operate in an automatic mode wherein the wiper system is deactivated automatically and in a manual mode wherein the wiper system is deactivated by a user, the wiper system including at least one wiper configured to move across a surface of a vehicle. The apparatus comprises a motor coupled to the at least one wiper for moving the at least one wiper across the surface and a processor in operable communication with the motor. The processor is configured to detect when the wiper system is operating in the automatic mode and return the at least one wiper to a predetermined position, and deactivate the wiper system, if the wiper system is operating in the automatic mode and the vehicle is turned off.Type: ApplicationFiled: April 3, 2008Publication date: October 8, 2009Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Mark R. WILLEY, David R. MICK
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Patent number: 7535190Abstract: A windshield wiper system for use on a hybrid electric vehicle is capable of adjusting the delay between consecutive cycles based on engine state and vehicle speed. The system includes a windshield wiper and a motor coupled to the windshield wiper. A sensor generates an engine speed signal and another sensor generates a vehicle speed signal. A processor in communication with the sensors and wiper motor provides a drive signal to the wiper motor which is based on the engine and vehicle speed.Type: GrantFiled: April 30, 2007Date of Patent: May 19, 2009Assignee: Ford Global Technologies, LLCInventors: Zhang Yan, Amer Malik, Zhengyu Dai, Issa Aljanabi
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Patent number: 7528500Abstract: Disclosed herein is an intelligent wiper control system for a vehicle. A rain sensor unit controls the speed of wipers based on the amount of rain. An electronic control unit analyzes the input signal of the input unit. An output unit controls the output integrated circuits, and adjusts and controls the driving of the wiper motor. The input unit includes a remote key for inputting a signal for controlling the driving of a wiper system and wirelessly transmitting the signal. An output unit causes an emergency light to blink when the drive power of the wiper motor is set to firm power and the driver turns off an ignition key and then gets out of the vehicle while wipers are turned on.Type: GrantFiled: November 1, 2007Date of Patent: May 5, 2009Assignee: Hyundai Autonet Co. Ltd.Inventor: Mun-Soon Kwon
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Publication number: 20080196190Abstract: In order to ensure, when the drive (1) is in a non-operating state, a self-locking that counters a change in position of the wiper (5), an electronically implemented self-locking is provided. To this end, the controller (S) of the wiper system monitors the wiper (5) during the non-operating state of the drive (1) by evaluating the position sensor signals for a change in position and, in response to the position monitoring, activates the drive (1) in order to return the wiper (5) into a set position (U, P).Type: ApplicationFiled: September 25, 2006Publication date: August 21, 2008Applicant: ROBERT BOSCH GMBHInventors: Florian Tisch, Hubertus Karcher
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Patent number: 7256565Abstract: A wiper system using two wipers and two wiper motors, which drive the wipers and of which at least one first wiper motor forms a sub-assembly with an electronic control unit. The second wiper motor is a rotary motor having only one sensory system for detecting the absolute and relative rotational position of its driven shaft, which generates corresponding signals for the control unit of the first wiper motor, and the first wiper motor, in the rotational speed and the rotational position of its driven shaft, is regulated by the control unit as a function of the rotational position and the rotational speed of the driven shaft of the second wiper motor.Type: GrantFiled: December 14, 2001Date of Patent: August 14, 2007Assignee: Robert Bosch GmbHInventors: Wilfried Merkel, Gebhard Michenfelder, Claus Fleischer
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Patent number: 6864655Abstract: A rain sensor, in particular for a motor vehicle including a window-wiper device (windshield-wiper device), including a measuring element, which has a sensitivity that is predefinable by a control device, a signal, characterizing the speed of the motor vehicle, being able to be transmitted to the control device, and the control device increasing the sensitivity of the measuring element at lower speed. Furthermore, a method for controlling a windshield-wiper device, in particular for a motor vehicle. A measuring element is connected to a control device, its sensitivity being predefined by the control device. A signal characterizing a speed of the motor vehicle is transmitted to the control device and the sensitivity of the measuring element increased at lower speed.Type: GrantFiled: July 21, 2003Date of Patent: March 8, 2005Assignee: Robert Bosch GmbHInventors: Patrick Schmitt, Bruno Hodapp, Hans Meier, Henry Blitzke
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Patent number: 6819067Abstract: The present invention relates to a contact-disk system including a control unit, a rotatable contact disk and a plurality of contact elements, the contact disk having a plurality of paths and each contact element being associated with one path. The paths have electrically conductive segments and electrically insulating segments, logical states being encoded by the electrically conductive segments and the electrically insulating segments. The contact disk has n paths with n≧2, and N logic states are encoded by the n paths and by the sequence of the electrically conductive segments and the electrically insulating segments, with N>2n. The present invention also relates to a method for controlling a windshield-wiper motor and a windshield-wiper motor having a contact-disk system according to the present invention.Type: GrantFiled: October 28, 2002Date of Patent: November 16, 2004Assignee: Robert Bosch GmbHInventor: Ansgar Grass
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Patent number: 6425160Abstract: An intermittent driving apparatus for a rotary window cleaner comprises a first wiper (2) which is connected to a rotating shaft (10) of a first motor (8) and is rotatably disposed on a front window (1), a second wiper (3) which is connected to a rotating shaft (11) of a second motor (9) and is rotatably disposed on a front window (1) adjacently to the first wiper (2), and an electronic control circuit having brush boards (18, 20) of two motors connected to each other so that the second motor (9) is rotated at a predetermined time after the first motor (8) is rotated. The electronic control circuit includes a signal generating circuit (30) for repeatedly sending signals to the brush board (18) of the first motor (8) at fixed time intervals, and a brake mechanism for stopping the two wipers at the start position for a predetermined time every one rotation.Type: GrantFiled: October 13, 1999Date of Patent: July 30, 2002Assignee: Saito Motors Co., Ltd.Inventor: Shosaku Saito
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Patent number: 6351088Abstract: A wiper drive apparatus includes a drive gear rotated by a motor, a lead frame carried on a cover attachable to the motor or motor gear and including a circumferentially of discrete conductive traces, and a park switch bridge rotatably mounted on the cover and carrying a circumferentially of spaced contacts, each slidable over conductive traces to open and close a circuit to the drive motor as the park switch bridge is engaged by and rotated by the drive gear. Each contact is carried on a beam projecting from a circumferentially of radially extending arms forming the park switch bridge. A drive pin carried on the drive gear engages successive arms to rotate the park switch bridge 90° for each revolution of the drive gear to bring a different contact into electrical connection with the conductive traces without requiring additional tooling for the lead frame or the park switch bridge itself.Type: GrantFiled: March 9, 2000Date of Patent: February 26, 2002Assignee: Valeo Electrical Systems, Inc.Inventors: Frank Lombardo, Harry Owlett, Christopher Jones, Harald Klode
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Patent number: 6306220Abstract: A wiper device for vehicle windows is proposed, which prevents a longer lasting or permanent deformation of an elastically deformable wiper lip (28) that is formed onto the wiper blade (16) since this wiper lip (28) is stored in different parking positions (P1, P2) in a parking location (P) of the wiper blade (16).Type: GrantFiled: December 2, 1999Date of Patent: October 23, 2001Assignee: Robert Bosch GmbHInventor: Joachim Zimmer
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Patent number: 6307341Abstract: A wiper driving apparatus for vehicles capable of preventing the temporary standstill and overrun phenomenon of wiper blades.Type: GrantFiled: February 24, 2000Date of Patent: October 23, 2001Assignee: Da Sung Co., Ltd.Inventor: Gyung Sang Chun
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Patent number: 6263537Abstract: A drive controlling apparatus for a rotary window cleaner comprises an elevating motor for moving up and down two wipers, which are provided on a front window so as to be close to each other, to a storage position and a start position, a first motor for rotating the first wiper at the start position, a second motor for rotating the second motor at the start position in a direction opposed to that of the first wiper, and an electronic control circuit to which each brush board of the elevating motor, the first motor and the second motor is connected so as to perform the upward and downward movement, the intermittent operation, the medium-speed operation and the high-speed operation.Type: GrantFiled: October 18, 1999Date of Patent: July 24, 2001Assignee: Saito Motors Co., Ltd.Inventor: Shosaku Saito