The invention relates to a windscreen wiper device for a vehicle, comprising a wiper blade (2) having an elongate upper part (10) and an elongate lower part (12) which are at least partially flexible. Also provided are multiple connecting elements (18) for connecting the upper part (10) and the lower part (12), the connecting elements being mutually spaced along a longitudinal extent (8) of the wiper blade (2) and being attached to the upper part (10) and/or the lower part (12) by a rotary joint, and the connecting elements (18) being designed to allow a movement of the upper part (10) and the lower part relative to each another with a movement component along a longitudinal extent (8) of the wiper blade (2). The wiper blade (2) has a fastening arrangement (32) which is designed to be fitted into a hollow shaft (40) of a drive unit and to be connected thereto so to transmit a torque from the drive unit via the hollow shaft (40) and the fastening arrangement (32) to the wiper blade (2).

The present invention concerns an elongated elastic support element 16 for a wiper blade 10 intended to be inserted in a support 14 for a wiper blade 10, the elongated elastic support element 16 being formed integrally between two longitudinal ends 16a and through which passes a median longitudinal plane P1, the elongated elastic support element comprising locking means 50 each intended to cooperate with a complementary locking member 56 carried by the wiper blade 10, and of which at least one locking means 50 is arranged at each longitudinal end 16a of the elongated elastic support element 16, characterized in that the locking means 50 comprise a single locking notch 50 per longitudinal end 16a, a first locking notch 50b extending from one side of the median longitudinal plane P1 and a second locking notch 50c extending from the other side of the median longitudinal plane P1. The invention also concerns a wiper blade 10 and a windscreen wiper 1 of a motor vehicle comprising said blade.

The present invention concerns an elongated elastic support element 16 for a wiper blade 10 intended to be inserted in a support 14 for a wiper blade 10, the elongated elastic support element 16 being formed integrally between two longitudinal ends 16a and through which passes a median longitudinal plane P1, the elongated elastic support element comprising locking means 50 each intended to cooperate with a complementary locking member 56 carried by the wiper blade 10, and of which at least one locking means 50 is arranged at each longitudinal end 16a of the elongated elastic support element 16, characterized in that the locking means 50 comprise a single locking notch 50 per longitudinal end 16a, a first locking notch 50b extending from one side of the median longitudinal plane P1 and a second locking notch 50c extending from the other side of the median longitudinal plane P1. The invention also concerns a wiper blade 10 and a windscreen wiper 1 of a motor vehicle comprising said blade.

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.

The invention relates to a wiper motor (10) with a shaft (30) for driving a wiper arm (1), wherein the shaft (30) projects through an opening (31) of a housing (15) and in the region of the opening (31) is mounted radially in a bore (55) of at least one substantially sleeve-shaped element (40), and wherein the sleeve-shaped element (40) is fixed at least axially in the region of the housing (15). According to the invention, it is provided that the sleeve-shaped element (40) has at least two different cross-sections (41, 42), a first cross-section (41) which is designed to protrude axially through the opening (31) and a second cross-section (42) which is designed to be accommodated in an axially fixed manner within said opening (31).

Provided are methods for acoustic emission based device control. Some methods described also include receiving information associated with a first acoustic emission sensor, a second acoustic emission sensor, and a third acoustic emission sensor is received. In embodiments, the information corresponds to an event. In accordance with the first, second, and third acoustic emission sensor information, the first, second, and third timestamps, and a geometry of the surface, a unit vector is calculated from each acoustic emission sensor in the direction of the event's origin. Parameters are calculated based on the unit vectors. Systems and computer program products are also provided.

Provided are methods for acoustic emission based device control. Some methods described also include receiving information associated with a first acoustic emission sensor, a second acoustic emission sensor, and a third acoustic emission sensor is received. In embodiments, the information corresponds to an event. In accordance with the first, second, and third acoustic emission sensor information, the first, second, and third timestamps, and a geometry of the surface, a unit vector is calculated from each acoustic emission sensor in the direction of the event's origin. Parameters are calculated based on the unit vectors. Systems and computer program products are also provided.

A brushless motor (18) which supplies currents to coils (U1, U2, V1, V2, W1, and W2) and rotates a rotor (27), the brushless motor comprising a control apparatus (37) which switches and selectively executes: first energization control to start energization to the coils (U1, U2, V1, V2, W1, and W2) at first timing, and to continue the energization for a first period to control the rotation number of the rotor (27); and second energization control to start energization to the coils (U1, U2, V1, V2, W1, and W2) at second timing advanced by an electric angle with respect to the first timing, and to continue the energization for a second period longer than the first period to control the rotation number of the rotor (27).

A motor case (31) in which a stationary portion (35) is fixed, and a gear case (41) in which a gear mechanism (SD) is accommodated are made of aluminium, most heat generated from the stationary portion (35) at the time of actuation of a brushless wiper motor (20) can be directly dissipated outside from the motor case (31). That is, compared with conventional technique, heat transmitted to the motor case (31) can be efficiently dissipated outside, and the motor case (31) does not reach high temperature. Therefore, as a matter of course, reduction in size and weight can be achieved, suppression of electromagnetic noise can be achieved, and heat-resistance strength can be enhanced. Expensive components capable of resisting high temperatures are not required, and reduction in manufacturing cost can be achieved.

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.