Method and device for controlling a powertrain

A method for controlling a power train installed in a motor vehicle and including an electric motor including a rotor and a stator, the method comprising:

• regulation of rotor and stator currents via control signals for the electric motor, the currents and the control signals being expressed in a revolving reference frame and including a plurality of axes, the control signals being derived from a first transformation including a change of variable allowing for dynamic decoupling between the control signals along each of the axes of the plurality of axes;
• saturation of the control signals obtained from the first transformation to satisfy constraints associated with a battery installed in the motor vehicle and connected to the electric motor;
• and
• blocking of at least some of regulation current setpoints if the control signals are saturated.

A system for controlling a power train installed in a motor vehicle and including an electric motor including a rotor and a stator, the system comprising:

• means for regulating rotor and stator currents using control signals for the electric motor, the currents and the control signals being expressed in a revolving reference frame and including a plurality of axes, the control signals being obtained from a first transformation including a change of variable allowing for dynamic decoupling of the control signals along each of the axes of the plurality of axes;
• means for saturating the control signals obtained from the first transformation to satisfy constraints associated with a battery installed in the motor vehicle and connected to the electric motor;
• and
• a blocking means configured to perform blocking of at least some of current setpoints of the regulation means if the control signals are saturated.