Vehicle steering device consisting of an auxiliary drive comprising an electric motor having a rotor with rotor poles arranged internally and having permanent magnets and having a stator with stator poles arranged externally and stator winding arranged on said poles, whereby the rotor and the stator enclose the same central motor axis and the cross section of the rotor is formed as a rotor ring made of ferromagnetic material with several recesses arranged on said motor ring for magnets arranged distributed at intervals and in a circle, as a result of which the rotor ring is divided into rotor poles which each lie between two permanent magnets, whereby the permanent magnets have a rectangular cross section with the width (b) and the height (h) and the height (h) forms the longer side which is aligned away from the motor axis in a radial direction and the permanent magnets are magnetised in the direction of their width (b) and are arranged in the rotor ring such that the of two adjacent permanent magnets are oriented with like poles next to one another characterised in that for each internal part of a rotor pole lying between two adjacent permanent magnets from the end region of the permanent magnets aligned against the motor axis on both sides a symmetrical magnetic recess (11, 11') is formed on each side and this does not contain any magnetic material such that in the respective central region of the rotor pole in a radial direction to the motor axis outwards in each case a support bar is formed for each rotor pole which connects an inner support ring to the respective rotor pole in a mechanically supportive manner, whereby in the inner region each permanent magnet, in the region of its width (b), is connected to the support ring by means of a bar-like magnetic support on the front side and in this way is fixed, whereby small retaining collars are provided on the outer circumference of the rotor for the positive-locking hold, which retaining collars only extend slightly over the edge at the width (b) of the permanent magnets, and in that the recesses (11, 11') are formed by a five-sided cross sectional shape, whereby the first side (11 a, 11 a') extends in the peripheral direction on the side of the permanent magnets facing the motor axis, approximately in parallel to the magnet width (b) and approximately vertical to the magnet height (h) and which is limited from the support ring moving radially in an inwards direction and a second side (11b, 11 b') in a radial direction, approximately in parallel to the alignment of the magnet height (h) and approximately vertical to the alignment of the magnet width (b) and runs along the side of the recess (11, 11') facing away from the permanent magnet and is delimited by the support bar, whereby the first side (11 a, 11 a') and the second side (11 b, 11 b') are arranged approximately vertically relative to one another and contact one another on the side facing away from the permanent magnets and towards the side of the magnetic recess (11, 11') facing the motor axis, whereby the fifth side (11 e, 11 e') runs from the end of the first side (11 a, 11 a') facing towards the permanent magnet in a radial direction towards the permanent magnet and is delimited by the magnet support and joins to the fourth side (11d, 11 d'), which correspondingly runs in an approximately peripheral direction at approximately right angles and is delimited by the permanent magnet, as a result of which the notch for the permanent magnet's is adjacent to the magnetic notch via this fourth side (11 a, 11 d'), and in that the fourth side (11 d, 11 d') runs in a peripheral direction from the magnet support to the external end of the permanent magnet, whereby the third side (11 c, 11c') contacts the end of the fourth side (11 d, 11 d') directly, which third side runs from the end of the second side (11 b, 11 b') which faces away from the motor axis, and in that the number of permanent magnets and poles formed is even, whereby the number of stator poles with stator windings is one less than the number of permanent magnets.