Method for regulating a work mode of an internal combustion engine during regeneration of a storage type catalytic converter arranged in an exhaust channel

The invention relates to a method for controlling an operating mode of an internal combustion engine of a motor vehicle during regeneration of a NOX storage catalyst arranged in an exhaust gas duct of the internal combustion engine, wherein by changing a ratio of fuel to oxygen in a fuel-air mixture supplied to the internal combustion engine for regeneration of the NOX storage catalyst, an operating mode with λ