| 摘要 |
It is well known that solar radiation is indirectly determined through the outside temperature and the degree of heating inside the vehicle (1) in order to control an air conditioning unit. Furthermore, country-specific programs which rely on the aid of data providing information on the current position are also used. GPS data of a GPS receiver (5) and data of an RDS (Radio Data System) (6) containing country-specific information are additionally used. The invention aims at providing optimal, individual and comfortable regulation inside the vehicle. This is achieved by determining the intensity of solar radiation in a vehicle (1) resulting from an absolute position of the sun, the spatial orientation of the vehicle (1) and the measured intensity of the sun. The absolute position of the sun is determined depending on the position on the globe and the time of day and the season. The position of the sun relative to the vehicle (1) is determined on the basis of the orientation of the vehicle (1) on the globe. Said orientation can be determined by means of GPS data, at least one acceleration sensor (9) and/or an additional vehicle compass (8). The position of the sun (10) relative to the vehicle (1) can be determined based on said individual or combined data and the actual, absolute position of the sun, i.e. the current position of the sun in the sky, thereby making it possible to determine the intensity of the solar radiation in the passenger compartment of the vehicle (1). |
