| Patent application number | Description | Published |
|---|
| 20080258693 | Method for Controlling an Electromagnetic Retarder and System Including Retarder and a Control Unit - A method for controlling an electromagnetic retarder from a control unit said retarder including an electrical generator. The inventive method is used to determine an excitation current intensity to be injected into the primary coils of the generator of the retarder, said retarder including a rotary shaft bearing the secondary windings of the generator a n d field coils which are supplied b y the secondary windings. The rotation speed of the rotary shaft is taken into account in order to select a lower intensity if the rotation speed of the shaft is higher. The invention is suitable for use in the field of electromagnetic retarders which are intended for heavy vehicles such as trucks. | 10-23-2008 |
| 20080290727 | Method for Controlling an Electromagnetic Retarder - A method for controlling an electromagnetic retarder. More specifically, the method relates to determining, in a control unit, a maximum allowable intensity (Im) of an excitation current to be injected into an electromagnetic retarder ( | 11-27-2008 |
| 20090174294 | DEFLECTOR FOR AN ELECTROMAGNETIC RETARDER AND ELECTROMAGNETIC RETARDER INCLUDING ONE SUCH DEFLECTOR - A deflector for an electromagnetic retarder including a rotary shaft with a fan for circulating a cooling gas to the induction coils which are intended, upon command, to generate Foucault currents in a stator surrounding the rotary shaft and the induction coils. The inventive deflector ( | 07-09-2009 |
| 20090210125 | WATER-COOLED ELECTROMAGNETIC RETARDER, A METHOD OF CONTROLLING SUCH A RETARDER AND A MOTOR VEHICLE COMPRISING SUCH A RETARDER - The present invention concerns an electromagnetic retarder intended to be used in the field of motor vehicles, in particular in the field of industrial vehicles such as heavy goods lorries, buses and coaches. However, the use of an electromagnetic retarder is not limited to a particular category of motor vehicle classed according to their use or weight. On the contrary, the electromagnetic retarder according to the invention can be used also for vans and other light motor vehicles, as the description will subsequently show. For this reason, the present invention will be described with reference to motor vehicles in general, without distinction. | 08-20-2009 |
| 20090219050 | METHOD FOR DETECTING A MALFUNCTION IN AN ELECTROMAGNETIC RETARDER - A method for detecting a malfunction in an electromagnetic retarder. More specifically, the method relates to a retarder comprising: stator primary coils ( | 09-03-2009 |
| 20090247354 | METHOD FOR CONTROLLING AN ELECTROMAGNETIC RETARDER - A method for controlling an electromagnetic retarder comprising a current generator into which an excitation current is injected. The method consists in determining a maximum allowable intensity (Im) of the excitation current to be injected into the stator primary coils of the retarder which includes a shaft bearing secondary windings and field coils which are supplied by the secondary windings, said primary coils and secondary windings forming the generator. The retarder includes a jacket inside which the field coils generate Foucault currents and a circuit for the liquid cooling of said jacket. More specifically, the method consists in determining the maximum allowable intensity in real time, such as to reach a critical temperature of the cylindrical jacket and determining said critical temperature taking account of a temperature value of the coolant. The method is suitable for retarders that are intended for vehicles such as heavy vehicles. | 10-01-2009 |
| 20090301829 | METHOD FOR USING AN ELECTROMAGNETIC RETARDER - A method for using an electromagnetic retarder of the type that comprises a current generator. The method relates to an electromagnetic retarder including a stator bearing the primary coils ( | 12-10-2009 |
| 20100090649 | ENGINE STORAGE DEVICE, PARTICULARLY FOR AN AUTOMOBILE - The invention relates to an energy storage device, particularly for an automobile, that comprises: an assembly ( | 04-15-2010 |
