Electrical driving unit for rolling vehicles and motor vehicles provided with such a unit

An electrical driving unit for rolling motor vehicles, the driving unit comprising an electrically motorized subassembly made up of a motor including a rotor having a speed, a series excitation winding and a parallel excitation winding, said motor being fed by a direct current supply subassembly and controlled by an electrically regulated control subassembly,

• said electrical driving unit characterized in that:
• the series excitation winding and the parallel excitation winding are both connected between the direct current supply subassembly and the electrically regulated control subassembly;
• the direct current subassembly comprising a series of accumulator batteries and,
• the electrically regulated control assembly comprising
• a feed circuit for the series excitation winding;
• a first rheostat installed on the feed circuit of said series excitation winding of the electrically motorized subassembly allowing for a drop in voltage at the terminals of said series excitation winding in order to modulate the rotor speed of the motor;
• a feed circuit for the parallel excitation winding;
• and
• a second rheostat installed on the feed circuit of the parallel excitation winding of the motorized subassembly, allowing for a variation in the intensity of the magnetic field of said parallel excitation winding in order to modulate the driving torque and speed of the rotor of the motor after startup of the motor.

A motor vehicle provided with an electrical driving unit, the driving unit comprising an electrically motorized subassembly made up of a motor including a rotor having a speed, a series excitation winding and a parallel excitation winding, said motor being fed by a direct current supply subassembly and controlled by an electrically regulated control subassembly,

• said electrical driving unit characterized in that:
• the series excitation winding and the parallel excitation winding are both connected between the direct current supply subassembly and the electrically regulated control subassembly,
• the direct current supply subassembly comprising a series of accumulator batteries, and
• the electrically regulated control assembly comprising a feed circuit for said series excitation winding and a first rheostat installed on the feed circuit of said series excitation winding of the electrically motorized subassembly allowing for a drop in voltage at the terminals of said series excitation winding in order to modulate the rotor speed of the motor.