Abstract

The invention relates to a control circuit (3) for an electric motor, in particular for driving a windshield wiper, including a control means (16) comprising an output for controlling the electric motor, the control means being capable of varying the angle of the motor between a given minimum value and maximum value. In particular, the control means (16) comprises an input for receiving a speed set point and is capable of controlling the angular speed of the motor according to the speed set point, the control circuit likewise including a set point means (14) comprising an input for receiving values of the angle of the motor and an output for providing a speed set point to the control means, the set point means (14) being capable of determining the speed set point from a continuous function of the motor angle. The invention likewise relates to a driving mechanism (2) for producing an alternating rotary motion comprising a circuit (3) such as described previously and an electric drive motor (4), as well as to a windshield wiper device (1) including at least one driving mechanism (2) such as described previously and an windshield wiper arm (5) driven by the driving mechanism.

IPC Classes  ?

• B60S 1/08 - Wipers or the like, e.g. scrapers characterised by the drive electrically driven
• B60S 1/16 - Means for transmitting drive

Abstract

The invention relates to a device for determining the operational state of an electro-expulsive deicing system (1) including a current pulse generator (3) and an electro-expulsive mat (2), a sensor (4) connected between the current pulse generator (3) and the electro-expulsive mat (2), a first means (6) for integrating the signal from the sensor (4), a second means (7) for integrating the signal from the first integration means (6), and a determination means (11) receiving, as an input, a signal from the sensor (4), a signal from the first integration means (6) and a signal from the second integration means (7), the determination means (11) being capable of emitting, as an output, a signal depending on the operational state of the electro-expulsive deicing system.

IPC Classes  ?

• B64D 15/16 - De-icing or preventing icing on exterior surfaces of aircraft by mechanical means, e.g. pulsating mats or shoes attached to, or built into, surface

Abstract

Lamp-holding device. Lamp-holding device comprising a bulb, the device being provided with means (21) for mounting the lamp on the device and with a support (22) for the mounting means, and the mounting means being designed to extend along the lamp bulb when the lamp is mounted on the device, which device is characterized in that the support (22) extends generally transversely relative to the mounting means.

IPC Classes  ?

• H01K 3/32 - Auxiliary devices for cleaning, placing, or removing incandescent lamps