Climate control device for the passenger compartment of motor vehicle

A climate control device for the passenger compartment of a motor vehicle including a heating radiator, comprising:

• fan means,
• an air distribution conduit disposed in the passenger compartment, an air mixing shutter positioned at an opening of the air distribution conduit which diverts a variable amount of the air flow from the fan means to the heating radiator,
• a defrosting conduit and a conduit with outlets at a floor portion of the passenger compartment,
• a distribution shutter placed between said defrosting conduit and said conduit with outlets at the floor portion of the passenger compartment,
• electronic probes for measuring the temperature inside and outside the passenger compartment,
• a microcalculator, connected to said electronic probes, which includes a memory containing a formula for the interior temperature required as well as a law for the flow from the fan means, both as a function of the outside temperature, the calculator being programmed for receiving temperature measurement data and processing such data so as to generate signals which depend upon the comparison between the required temperature law and the measured inside temperature and means for generating signals therefrom,
• a plurality of micromotors controlling the mixing and distribution shutters in response to signals generated from said means for generating signals, and
• means for controlling feed of the heating radiator and signals commanding the supply of electricity to the fan means in accordance with said flow law.