Commutated electro-dynamic machine such as a d.c. motor, having an auto-synchronizing sensor, and a screen wiping apparatus employing such a motor
AssigneeValeo Systèmes d'Essuyage
InventorsXavier Materne, Richard Dazat
Life of this patent
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Abstract
In a screen wiping apparatus for a vehicle, two or more motorsz of the kind having a commutator, such as d.c. wiper motors, are automatically synchronised by a synchronising means which comprises a wheel coupled to the commutator of each machine, together with a reading device which is coupled to the stator of the machine. The reading device detects the instantaneous angular position of the machine.
Claims15
An electro-dynamic machine comprising a stator, a rotor, means mounting the rotor in the stator, a commutator carried by the rotor, automatic synchronising means associated with the rotor and the stator for automatic synchronisation of the machine with another similar machine, wherein the automatic synchronising means includes a wheel coupled to the commutator, said wheel including at least one portion carrying an indication of a recorded angular position of the rotor, and at least one reading device for reading the said indication of position, the reading device being coupled to the stator of the machine.
Dependencies are inferred from the claim text.