Energy-Optimized Forced Regeneration of a Particle Filter of a Hybrid Vehicle

A control system for the regeneration of a particle filter in an exhaust gas flow of an internal combustion engine of a hybrid vehicle having an electric machine, the control system comprising:

• a particle filter;
• a temperature sensor arranged in the region of the particle filter;
• and
• a controller programmed to:
• determine a temperature difference between a setpoint temperature for the regeneration of the particle filter (20) and an actual temperature of the particle filter measured by the temperature sensor;
• calculate a power output difference to be applied based at least in part on the temperature difference;
• and
• switch the electric machine to a generator mode, so that the increase in the load on the internal combustion engine causes the actual temperature of the particle filter to increased by the temperature difference.

A method for the regeneration of a particle filter in an exhaust gas flow of an internal combustion engine of a hybrid vehicle including an electric machine, the method comprising:

• determining a temperature difference between a setpoint temperature for the regeneration of the particle filter and an actual temperature of the particle filter;
• calculating a power output difference to be applied based at least in part on the temperature difference;
• triggering a first heat source based on the power output difference, the first heat source arranged upstream of the particle filter in the exhaust gas flow;
• and
• if the power output difference to be applied is greater than a power output capacity of the first heat source, triggering a second heat source using the power output difference, the second heat source arranged upstream of the particle filter in the exhaust gas flow.

A method for the regeneration of a particle filter in an exhaust gas flow of an internal combustion engine in a hybrid vehicle with an electric machine, the method comprising:

• determining a temperature difference between a setpoint temperature for the regeneration of the particle filter and an actual temperature of the particle filter;
• calculating a power output difference to be applied based at least in part on the temperature difference;
• and
• if the power output difference to be applied is greater than an available power output of the first heat source, switching the electric machine to a generator mode, so that the increase in the load on the internal combustion engine increases the actual temperature of the particle filter by the temperature difference.