Crawled vehicle for the preparation of ski pistes

A crawled vehicle air temperature adjustment system comprising:

• a first channel connected to an air inlet of a crawled vehicle and configured to receive air coming from outside of the crawled vehicle;
• a second channel configured to receive hot air coming from an internal combustion engine of the crawled vehicle;
• a third channel coupled to the internal combustion engine of the crawled vehicle and configured to feed the internal combustion engine of the crawled vehicle with air;
• an air filter arranged along the third channel upstream of the internal combustion engine of the crawled vehicle;
• a connection element connected to:
• the first channel, the second channel, and the third channel;
• and
• an air adjusting device comprising:
• a shutter coupled to at least one of the first channel, the second channel, and to the connection element, and
• a control device comprising a clogging sensor coupled to the air filter and configured to detect a clogging of the air filter caused by snow, the control device configured to control, based on data detected from the clogging sensor, a position of the shutter to adjust a temperature of air entering the third channel.

A crawled vehicle comprising:

• an internal combustion engine;
• an engine compartment housing the internal combustion engine;
• an air inlet configured to catch air from outside of the crawled vehicle;
• a first channel connected to the air inlet and configured to receive air coming from outside of the crawled vehicle;
• a second channel configured to receive hot air coming from the internal combustion engine;
• a third channel coupled to the internal combustion engine and configured to feed the internal combustion engine with air;
• an air filter arranged along the third channel upstream of the internal combustion engine;
• a connection element connected to:
• the first channel, the second channel, and the third channel;
• a turbine arranged along the third channel between the air filter and the internal combustion engine;
• a cooler arranged along the third channel between the turbine and the internal combustion engine;
• an exhaust gas recirculation valve configured to feed the internal combustion engine with mixed air comprising exhaust gases of the internal combustion engine and air from the third channel, the exhaust gas recirculation valve arranged upstream of the internal combustion engine, downstream of the cooler, and configured to be fed by the third channel;
• and
• an air adjusting device comprising:
• a shutter coupled to at least one of the first channel, the second channel, and to the connection element, and
• a control device comprising:
• a first temperature sensor arranged between the cooler and the internal combustion engine, the first temperature sensor configured to measure a first temperature of air exiting the cooler, and
• a second temperature sensor arranged between the exhaust gas recirculation valve and the internal combustion engine and configured to measure a second temperature of the mixed air,
• wherein the control device is configured to control, based on the first temperature measured, a position of the shutter to adjust a temperature of the air entering the third channel, and configured to further control the position of the shutter based on the measured second temperature.