Rotating electrical machine, in particular for a motor vehicle starter

A direct current rotating electrical machine, especially a motor vehicle starter (1), the machine comprising:

• a stator (3) comprising a magnetised structure with permanent magnetisation, extending along a circumference of the stator,
• a rotor (2),
• a group of brushes (13, 14) arranged to allow the electrical supply of the rotor by switching the electrical current in sections of the rotor,
• the machine being characterised by the fact that the magnetised structure (5) contains a plurality of main magnets (161) and a plurality of auxiliary magnets (162) each arranged between two main magnets, the auxiliary magnets having especially an angular extent and/or a radial thickness which are less than that/those of the main magnets, and by the fact that the magnetisation vector in at least one of the main and auxiliary magnets varies, for example continuously or by steps, taking a direction, at least locally, other than radial and orthoradial directions, in particular the magnetisation vector rotates, in relation to the radial direction, continuously or by steps, when one moves along a circumference of this magnet in such a way that the magnetisation vector takes different angles in relation to the radial direction along this circumference.