Abstract: An electrical motor-generator with a pulse-type power supply has a special flywheel with controlled radial pulsed satellite freebodies, freemasses, or pistons. The invention also features a permanently active drive function at current-interruption intervals of the batteries or main supply as they regularly recur about once per second. This motor is especially suited for roadway vehicles with battery power supplies, which would then be recharged partially through the current-generating function of this electromotive device during the above-mentioned current-interruption intervals, in particular as a result of the intermittently-occurring flywheel power energy surplus. The device features radially moving pistons mounted to an armature and wound with coils which are connected to the controls of the device. Each piston is biased in an inward direction by a biasing spring.