Operating point controller

A system for controlling an operating point of a power source for a propulsive e-machine in a hybrid electric vehicle, comprising:

• a power train comprising a power source and at least one propulsive e-machine, wherein the power source comprising an integrated starter generator and an internal combustion engine, wherein at least one desired operating point for the power source comprising at least one characteristic parameter;
• and
• an operating point component configured to query the at least one desired operating point and to distribute the control of the at least one desired operating point to a control of the internal combustion engine or to a control of the integrated starter generator control;
• wherein:
• in case the at least one characteristic parameter of the at least one desired operating point being in a predetermined limit, the operating point component distributes the control of the at least one desired operating point to the control of the internal combustion engine;
• and
• in case the at least one characteristic parameter of the at least one desired operating point being beyond the predetermined limit, the operating point component distributes the control of the at least one desired operating point to the control of the integrated starter generator.