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Found results for
 patents
1.
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CONTROL CIRCUIT AND METHOD FOR AN ELECTRIC MOTOR, IN PARTICULAR FOR DRIVING A WINDSHIELD WIPER
| Application Number |
EP2011057135 |
| Publication Number |
2011/138367 |
| Status |
In Force |
| Filing Date |
2011-05-04 |
| Publication Date |
2011-11-10 |
| Owner |
ECE (France)
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| Inventor |
Bonnefous, Edouard
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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
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2.
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DEVICE AND METHOD FOR DETERMINING THE OPERATIONAL STATE OF AN ELECTRO-EXPULSIVE DEICING SYSTEM
| Application Number |
EP2011053678 |
| Publication Number |
2011/110659 |
| Status |
In Force |
| Filing Date |
2011-03-11 |
| Publication Date |
2011-09-15 |
| Owner |
ECE (France)
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| Inventor |
Abdesselam, Francis
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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
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