Dumpers and Excavators are used in quarries and mine fields. The driver cabin of the vehicle needs to be air conditioned. The vehicle will not running all the time and is idling for many hours. The engine should be kept on in order to keep air conditioner switched on.
Temperature in mines are relatively high and touches around 50 Deg C during summer. Currently, the vehicle engine is turned on to run the air conditioner in the driver’s cabin. Shift time of operation is 8 hours and total idle time for vehicle in a shift is around 3 hours. In this idle time, engine has to be kept running to keep the air conditioner ON. This eventually increases the fuel consumption and cost of operation. We are looking for a solution which does not require the engine to be running for keeping the air conditioner ON. Following conditions should be met.