Method for operating a range extender of a motor vehicle, corresponding control device and corresponding motor vehicle

A control device for a motor vehicle, the control device comprising:

• a computer-readable storage medium having program code configured to perform a method comprising:
• determining or recording a route plan relating to a route to be taken during a journey with the motor vehicle before or at a start of the journey;
• and
• determining an operating plan relating to the charging of the energy storage device during the journey by way of a range extender of the motor vehicle based on the route plan,
• wherein the motor vehicle comprises:
• an electrical energy storage device configured to store electrical energy;
• and
• a traction motor configured as an electrical machine, the traction motor configured to use the electrical energy stored in the energy storage device to generate a drive torque of the motor vehicle;
• the range extender comprising an internal combustion engine and a generator,
• wherein the energy storage device is configured to be charged by way of operation of the internal combustion engine using a fossil fuel and use of the generator.

A motor vehicle, comprising:

• an electrical energy storage device configured to store electrical energy;
• a traction motor configured as an electrical machine, the traction motor configured to use electrical energy stored in the energy storage device to generate a drive torque of the motor vehicle;
• a range extender comprising an internal combustion engine and a generator;
• and
• a control device comprising a computer-readable storage medium having program code configured to perform a method comprising:
• determining or recording a route plan relating to a route to be taken during a journey with the motor vehicle before or at a start of the journey;
• and
• determining an operating plan relating to the charging of the energy storage device during the journey by way of the range extender based on the route plan,
• wherein the energy storage device is configured to be charged by way of operation of the internal combustion engine using a fossil fuel and use of the generator.