SYSTEM AND METHOD FOR CONTROLLING AIR CONDITIONING SYSTEM

摘要

An air conditioning system (200) for an operator cab (104) of machine (100) includes a condenser (206), an evaporator (202), a compressor (204) and a controller (210) operable to control an operation of the compressor (204). The controller (210) maintains a pre-defined compressor (204) run time when the compressor (204) is in an ON state. The controller (210) is configured to determine a temperature of the evaporator (202) and compare it with at least one of a first lower threshold temperature value and a second lower threshold temperature value being less than the first lower threshold temperature value. The controller (210) outputs a compressor (204) control command signal to change the operational state of the compressor (204) to an OFF state when the determined temperature of the evaporator (202) is less than at least one of the first lower threshold temperature value for a first time period, and the second lower threshold temperature value for a second time period being less than the first time period.