Abstract: A method for operating an internal combustion engine is provided. By taking into account a setpoint temperature Tsetpoint of the internal combustion engine which depends on external and internal boundary conditions when controlling and/or regulating temperature-dependent functions of the internal combustion engine, fuel consumption and emission characteristics of the internal combustion engine are improved.

Abstract: In a method for operating a cooling and heating circuit of a motor vehicle driven by an internal combustion engine, a first cooling medium path is provided through a bypass conduit, a second cooling medium path is provided through a main cooler of the internal combustion engine, a third cooling medium is provided through a heating heat exchanger, and a fourth cooling medium path is provided through a heat accumulator. The cooling medium flows through the paths are subdivided by an electrically operated valves, and the cooling medium flows are generated by at least one pump. The valves are controlled by a control unit based on operational and environmental parameters as well as nominal values, and a third control valve which is controlled by the control unit is arranged in the fourth cooling medium path.

Abstract: A method for regulating the temperature of a coolant of an internal combustion engine, including a temperature sensor detecting the temperature of the coolant and a first control unit controlling and/or regulating the coolant temperature to obtain a predetermined temperature setpoint value, a further control unit being provided whose signals are fed to the first control unit, the further control unit relaying signals about an established driver type to the first control unit and, depending on whether the driver type is classified as sporty or economical, the first control unit presetting the temperature setpoint value, in which a coolant volume flow for cooling the internal combustion engine is regulated or controlled by the control unit as a function of the driver type established.

Abstract: A method for operating an internal combustion engine is provided. By taking into account a setpoint temperature Tsetpoint of the internal combustion engine which depends on external and internal boundary conditions when controlling and/or regulating temperature-dependent functions of the internal combustion engine, fuel consumption and emission characteristics of the internal combustion engine are improved.

Abstract: A method is described for regulating the temperature of a coolant of an internal combustion engine, a temperature sensor detecting the temperature of the coolant and a first control unit controlling and/or regulating the coolant temperature in order to obtain a predetermined temperature setpoint value, a further control unit being provided whose signals are fed to the first control unit, the further control unit relaying signals about an established driver type to the first control unit and, depending on whether the driver type is classified as sporty or economical, the first control unit presetting the temperature setpoint value, in which a coolant volume flow for cooling the internal combustion engine is regulated or controlled by the control unit as a function of the driver type established.

Abstract: A method for operating a cooling and heating circuit of a motor vehicle driven by an internal combustion engine, the method has the steps providing a first cooling medium path through a bypass conduit, providing a second cooling medium path through a main cooler of the internal combustion engine, providing a third cooling medium through a heating heat exchanger, providing a fourth cooling medium path through a heat accumulator, subdividing cooling medium flows through the paths by an electrically operated valves, providing the cooling medium flows by at least one pump, controlling the valves by a control unit in dependence on operational and environmental parameters as well as nominal values, arranging a third control valve which is controlled by the control unit in the fourth cooling medium path and closing the third control valve completely or partially when a reference temperature of a remaining cooling and heating circuit exceeds a nominal value provided in the control unit, and opening the third control

Abstract: A method for operating a cooling and heating circuit of a motor vehicle driven by an internal combustion engine, the method has the steps providing a first cooling medium path through a bypass conduit, providing a second cooling medium path through a main cooler of the internal combustion engine, providing a third cooling medium through a heating heat exchanger, providing a fourth cooling medium path through a heat accumulator, subdividing cooling medium flows through the paths by an electrically operated valves, providing the cooling medium flows by at least one pump, controlling the valves by a control unit in dependence on operational and environmental parameters as well as nominal values, arranging a third control valve which is controlled by the control unit in the fourth cooling medium path and closing the third control valve completely or partially when a reference temperature of a remaining cooling and heating circuit exceeds a nominal value provided in the control unit, and opening the third control