Patent ID: 7562535

Claim:
A method for automatically starting and stopping an internal combustion engine of a motor vehicle having an air conditioning system, by way of a start-stop device, the method which comprises: automatically switching off the internal combustion engine, having been started by a person, with the start-stop device in dependence on multiple stop conditions, wherein one of the stop conditions is a release of a stop mode of an air-conditioning device depending, inter alia, on an actual temperature prevailing in an interior of the motor vehicle, and a further stop condition is an expiration of a defined variable time period, and the variable time period depends on a temperature difference between the actual temperature prevailing in the interior of the motor vehicle and a setpoint temperature desired by the driver; wherein the time period depends on a relative air-conditioning performance defined as a quotient of the air-conditioning performance of the air-conditioning device and the temperature difference; and calculating a threshold value from a link between the basic value and a learning factor representing a driver-specific manner of driving.