A vehicular wiper device includes a first wiper arm, a first drive source, a rocking mechanism, a second drive source, an extension and retraction mechanism, and a control unit. A first wiper blade for wiping a surface to be wiped of a vehicle is connected to the front end of the first wiper arm. The first drive source is directly or indirectly affixed to the vehicle body. The rocking mechanism is driven by the drive force of the first drive source and reciprocates and rocks the first wiper arm. The second drive source is directly or indirectly affixed to the vehicle body separately from the first drive source. The extension and retraction mechanism is driven by the drive force of the second drive source and extends and retracts the first wiper arm in the longitudinal direction thereof. The control unit controls the drive of the first drive source and the second drive source so that the extension and retraction operation of the first wiper arm performed by the extension and retraction mechanism will correspond to the rocking operation of the first wiper arm performed by the rocking mechanism.

A windshield wiper system (WWS) is provided and includes a brushless direct current (BLDC) motor with a motor output shaft gear, a gear train and an internally cut sector gear. The gear train includes a first gear, which has a first diameter and engages with the motor output shaft gear, and a second gear, which has a second diameter that is shorter than the first diameter and rotates with the first gear. The internally cut sector gear is coupled with an output shaft and formed to define an internal geared groove that engages with the second gear.

A wiper system for clearing an outer surface of a window is disclosed and includes an arm, a frame, a blade, and an actuator operatively connected to the arm. The arm includes a parked position and defines a proximate end portion and a distal end portion. The arm is pivotable about the proximate end portion of the arm out of the parked position. The frame is pivotally connected to the distal end portion of the arm. The frame defines a lengthwise distance. The blade extends along at least a lengthwise portion of the frame. The blade defines an edge that is configured to contact the outer surface of the window when the arm is in the parked position. The actuator is configured to exert a force against the arm that is sufficient to urge the arm out of the parked position and away from the outer surface of the window.

A wiper system for clearing an outer surface of a window is disclosed and includes an arm, a frame, a blade, and an actuator operatively connected to the arm. The arm includes a parked position and defines a proximate end portion and a distal end portion. The arm is pivotable about the proximate end portion of the arm out of the parked position. The frame is pivotally connected to the distal end portion of the arm. The frame defines a lengthwise distance. The blade extends along at least a lengthwise portion of the frame. The blade defines an edge that is configured to contact the outer surface of the window when the arm is in the parked position. The actuator is configured to exert a force against the arm that is sufficient to urge the arm out of the parked position and away from the outer surface of the window.

A vehicle wiper device and vehicle wiper device control method are provided that are capable of changing a position of a wiping range of a wiper arm in a manner that is less distracting. When a switch for an enlarged wiping operation has been switched ON, a microcomputer 58 performs control to change the position of a wiping range by starting rotation of an output shaft of a second motor 12 in a predetermined direction when a rotation angle of an output shaft of a first motor 11 has reached an angle corresponding to a position within a predetermined range in the vicinity of one out of a upper return position P1P or a lower return position P2P. Accordingly, when a front passenger seat side wiper blade 36 changes direction at either the upper return position P1P or the lower return position P2P, a front passenger seat side wiper arm 35 begins to extend, and the position of a wiping range of the front passenger seat side wiper blade 36 is moved upward on a front passenger seat side.

A vehicle wiper device and vehicle wiper device control method are provided that are capable of changing a position of a wiping range of a wiper arm in a manner that is less distracting. When a switch for an enlarged wiping operation has been switched ON, a microcomputer 58 performs control to change the position of a wiping range by starting rotation of an output shaft of a second motor 12 in a predetermined direction when a rotation angle of an output shaft of a first motor 11 has reached an angle corresponding to a position within a predetermined range in the vicinity of one out of a upper return position P1P or a lower return position P2P. Accordingly, when a front passenger seat side wiper blade 36 changes direction at either the upper return position P1P or the lower return position P2P, a front passenger seat side wiper arm 35 begins to extend, and the position of a wiping range of the front passenger seat side wiper blade 36 is moved upward on a front passenger seat side.

A vehicle wiper device includes a first driving lever, a second driving lever, a first driven lever, a second driven lever, a first wiper arm, a first wiper blade, a second wiper arm, and a second wiper blade. The first driving lever is pivoted by a driving force of a first drive source. The second driving lever is pivoted by a driving force of a second drive source. A pivoting speed of the second wiper blade from a lower reversal position is set to be greater than a pivoting speed of the first wiper blade from a lower reversal position.

A vehicle wiper device includes a first driving lever, a second driving lever, a first driven lever, a second driven lever, a first wiper arm, a first wiper blade, a second wiper arm, and a second wiper blade. The first driving lever is pivoted by a driving force of a first drive source. The second driving lever is pivoted by a driving force of a second drive source. A pivoting speed of the second wiper blade from a lower reversal position is set to be greater than a pivoting speed of the first wiper blade from a lower reversal position.

A windshield wiper system (WWS) is provided. The WWS includes a wiper blade movable across a maximum sweep angle, a sector gear, a wiper arm coupled at opposite ends thereof to the wiper blade and the sector gear and a bi-directional motor. The bi-directional motor includes a motor shaft and a pinion gear disposed on the motor shaft to engage with the sector gear. The bi-directional motor is operable to drive rotations of the pinion and sector gears in opposite directions via the motor shaft to thereby drive opposite movements of the wiper blade via the wiper arm, respectively, without risking loss of engagement between the pinion and sector gears.

A wiper device that includes: a first control section that, during intermittent operation, controls power supply to a drive source such that a wiper blade wipes to-and-fro between a first return position and a second return position on a windshield and stops moving for a predetermined duration at the first return position, and that performs position retention control that controls power supply to the drive source such that the stopped wiper blade is retained at a position at which the wiper blade is stopped; and a second control section that suspends the position retention control by the first control section in a case in which a current flowing in the drive source is detected to have increased by a predetermined value or greater while the wiper blade moves toward the first return position within a predetermined region in a vicinity of the first return position.