Abstract: A method for heating an exhaust system downstream from an internal combustion engine using an electrical heating device. The method includes an ascertainment of a current temperature in the exhaust system, an ascertainment of a current temperature of the electrical heating device and a fluid mass flow flowing through the electrical heating device, an ascertainment of a heating requirement based on the ascertained current temperature and a target temperature, a calculation of a required amount of heat depending on the heating requirement and an amount of energy required to heat up the electrical heating device, taking into account a heat input into the fluid mass flow to be expected at the ascertained current temperature of the electrical heating device, and a control of the electrical heating device to generate the calculated amount of heat. A computing unit and a computer program are also described.

Abstract: A method for heating an exhaust system downstream from an internal combustion engine using an electrical heating device. The method includes an ascertainment of a current temperature in the exhaust system, an ascertainment of a current temperature of the electrical heating device and a fluid mass flow flowing through the electrical heating device, an ascertainment of a heating requirement based on the ascertained current temperature and a target temperature, a calculation of a required amount of heat depending on the heating requirement and an amount of energy required to heat up the electrical heating device, taking into account a heat input into the fluid mass flow to be expected at the ascertained current temperature of the electrical heating device, and a control of the electrical heating device to generate the calculated amount of heat. A computing unit and a computer program are also described.

Abstract: A method (200) for heating an exhaust system (120) downstream of an internal combustion engine (1) by means of an electric heating device (14, 15). In one example, the method includes determining a current temperature (t_EHC, t_EHC{circumflex over (?)}Us, t_Cat) in the exhaust system (120), determining a heating demand (t_EHC{circumflex over (?)}Des) based on the determined current temperature (t_Cat) and a target temperature, calculating a required amount of heat (Pwr{circumflex over (?)}Des) on the basis of the heating demand and an amount of energy required to heat the electric heating device (14, 15), and controlling (Pwr{circumflex over (?)}Req) the electric heating device (14, 15) to generate the calculated amount of heat.

Abstract: A method (200) for heating an exhaust system (120) downstream of an internal combustion engine (1) by means of an electric heating device (14, 15). In one example, the method includes determining a current temperature (t_EHC, t_EHC{circumflex over (?)}Us, t_Cat) in the exhaust system (120), determining a heating demand (t_EHC{circumflex over (?)}Des) based on the determined current temperature (t_Cat) and a target temperature, calculating a required amount of heat (Pwr{circumflex over (?)}Des) on the basis of the heating demand and an amount of energy required to heat the electric heating device (14, 15), and controlling (Pwr{circumflex over (?)}Req) the electric heating device (14, 15) to generate the calculated amount of heat.