In this example the simple passenger compartment model is enhanced by a more detailed modelling of the solar radiation. Within a subsystem the introduced heat into the passenger compartment is calculated based on the solar radiation intensity, the orientation of the sun rays relative to the vehicle and vehicle specific parameters like window size, their slope and transmittance.
For illustration purposes the vehicle starts driving to the north and changes the driving direction gradually to the east, south and west and ends the test cycle with heading north again. The sun rays remain coming from the east during the whole drive cycle so that the vehicle rotates 360 degrees around the sun and the impact of each window surface can be analyzed. The orientation dependency is considered by the usage of rotation matrices. The direction of the sun rays is defined with the help of two angles as it is done in the extended passenger compartment model
Keywords: sun rays, solar impact, enhancing cabin model, enhancing passenger compartment modelUsable from release: KULI 14.1