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.

An apparatus and a method are for detecting precipitation on a windscreen of a motor vehicle. A camera device records a first image and thereafter a second image. A comparison device produces a first comparison image by comparing the first image with the second image. An image detection device identifies objects on the first comparison image, and determines motion of the objects, to detect whether there is precipitation on the windscreen.

Side view mirror wiper system is a wiper assembly for a vehicle door mirror which allows a user to activate a switch within the drivers compartment to send electrical current to a DC motor within the mirror housing to turn on a wiper and clear rain, dew, snow, and dust from the mirror surface to allow clear side and rear viewing through the mirrors to promote safer driving conditions.

A system mounted on a vehicle for detecting an obstruction on a surface of a window of the vehicle, a primary camera is mounted inside the vehicle behind the window. The primary camera is configured to acquire images of the environment through the window. A secondary camera is focused on an external surface of the window, and operates to image the obstruction. A portion of the window, i.e. window region is subtended respectively by the field of view of the primary camera and the field of view of the secondary camera. A processor processes respective sequences of image data from both the primary camera and the secondary camera.

The present invention relates to a brushless direct current electric motor (1), in particular for a wiping system, comprising: a rotor (15) comprising a control magnet, a stator (3) having electromagnetic excitation coils (9) of the rotor (15), at least one Hall effect sensor (23) configured to detect an angular position of the control magnet (21), a control unit (25) connected to said Hall effect sensor (23) and configured to determine at least one angular position of the rotor (15) in relation to the stator (3) from the signals (H) from the Hall effect sensor (23) and to generate control signals (C) to power the electromagnetic excitation coils (9) of the stator (3) as a function of the determined angular position of the rotor (15), in which the control unit (25) comprises a clock (26) and is configured to: estimate the angular position of the rotor (15) at a plurality of predetermined instants (i.sub.21 . . . i.sub.25) lying between two changes of state of the Hall effect sensor (23) from the instants (I0, I1) of the preceding changes of state, determine values of the control voltages associated with the angular positions of the rotor (15) estimated for the predetermined instants (i.sub.21 . . . i.sub.25), said voltage values making it possible to generate a substantially sinusoidal control signal (C), generate a substantially sinusoidal control signal (C) from the determined voltage values.

The invention relates also to a gear motor, a wiping system and a method for controlling the electric motor (1).

The present invention relates to a brushless direct current electric motor (1), in particular for a wiping system, comprising: a rotor (15) comprising a control magnet, a stator (3) having electromagnetic excitation coils (9) of the rotor (15), at least one Hall effect sensor (23) configured to detect an angular position of the control magnet (21), a control unit (25) connected to said Hall effect sensor (23) and configured to determine at least one angular position of the rotor (15) in relation to the stator (3) from the signals (H) from the Hall effect sensor (23) and to generate control signals (C) to power the electromagnetic excitation coils (9) of the stator (3) as a function of the determined angular position of the rotor (15), in which the control unit (25) comprises a clock (26) and is configured to: estimate the angular position of the rotor (15) at a plurality of predetermined instants (i.sub.21 . . . i.sub.25) lying between two changes of state of the Hall effect sensor (23) from the instants (I0, I1) of the preceding changes of state, determine values of the control voltages associated with the angular positions of the rotor (15) estimated for the predetermined instants (i.sub.21 . . . i.sub.25), said voltage values making it possible to generate a substantially sinusoidal control signal (C), generate a substantially sinusoidal control signal (C) from the determined voltage values.

The invention relates also to a gear motor, a wiping system and a method for controlling the electric motor (1).

A work vehicle includes an antenna which executes communication with an external portion and a communication terminal device which is electrically connected to the antenna. The antenna and the communication terminal device are arranged within a dash board which is provided in a rising manner so as to bury a steering column where a control steering wheel is arranged.

A work vehicle includes an antenna which executes communication with an external portion and a communication terminal device which is electrically connected to the antenna. The antenna and the communication terminal device are arranged within a dash board which is provided in a rising manner so as to bury a steering column where a control steering wheel is arranged.

A water droplet detection device has an image capturing unit and a water droplet detection unit. The image capturing unit has a photographic optical system that an area captures an image of a predetermined area. The water droplet detection unit sets an arbitrary attention point in the captured image, a plurality of first reference points inside an imaginary circle of a predetermined radius having the attention point as a center the imaginary circle, and a plurality of second reference points corresponding to the first reference points outside the imaginary circle. The water droplet detection unit detects edge information between the first reference points and second reference points, and assesses a circularity strength of the edge information to detect a water droplet attached to the photographic optical system. The water droplet detection device can be used with an image conversion unit to form a three-dimensional object detection device.

A pop-up external lens washing system has an extendable aiming fixture configured to aim a lens cleaning spray at an external lens which is exposed to the elements and apt to become soiled with debris. The extendable nozzle assembly is configured to be aimed toward the external lens by the extended aiming fixture during the washing operation only and has at least one laterally offset washing nozzle projecting from the aiming fixture to a spray washing fluid toward the external lens surface, spraying at a shallow, glancing spray aiming angle to impinge upon and wash the lens external surface.