Patent ID: 6867515

Claim:
Noise suppression system for a permanent-magnet motor for activating a functional device in a motor vehicle, in which the motor ( 1 ) includes supply brushes ( 8 , 9 ) connected to an external power supply ( 12 ) by leads ( 10 , 11 ) and a metal casing ( 2 ), characterized in that each brush ( 8 , 9 ) is separately connected to the metal casing ( 2 ) of the motor ( 1 ) through at least one noise suppression capacitor ( 13 , 14 ), in that the metal casing ( 2 ) of the motor ( 1 ) is connected to the vehicle's earth (at 15 ) and in that the metal casing ( 2 ) of the motor and the functional device have complementary means for earthing the casing.