초록 ▼

An Integrated controller for a commercial vehicle air conditioning system according to the present invention includes a central control unit in communication with a high-pressure switch or sensor, a low-pressure switch or sensor, and an evaporator thermostat. The central control unit includes output

An Integrated controller for a commercial vehicle air conditioning system according to the present invention includes a central control unit in communication with a high-pressure switch or sensor, a low-pressure switch or sensor, and an evaporator thermostat. The central control unit includes outputs that control the air conditioning system compressor and fan according to the conditions detected by the high pressure switcher sensor, the low pressure switch or sensor, and the evaporator thermostat.

대표청구항 ▼

[ We claim:] [1.] An integrated controller for a commercial vehicle air conditioning system having a compressor that pumps a fluid refrigerant through a condenser, an evaporator, a high-pressure section, and a low-pressure section, the condenser having an associated condenser cooling fan and the com

[ We claim:] [1.] An integrated controller for a commercial vehicle air conditioning system having a compressor that pumps a fluid refrigerant through a condenser, an evaporator, a high-pressure section, and a low-pressure section, the condenser having an associated condenser cooling fan and the compressor including a clutch system for selectively activating the compressor, comprising:central control means for controlling the commercial vehicle air conditioning system, the central control means including timing means for determining the temporal relationships among input signals received from components of the air conditioning system, the temporal relationships being used to determine appropriate control signals;a high-pressure sensor coupled to the high-pressure section of the air conditioning system and in communication with the central control means;a low-pressure sensor coupled to the low-pressure section of the air conditioning system and in communication with the central control means;a temperature sensor coupled to the evaporator and in communication with the central control means; andcontrol outputs coupling the central control means with the condenser cooling fan and the compressor clutch system, wherein the central control means receives and analyzes information from the high-pressure sensor, the low-pressure sensor, and the temperature sensor coupled to the evaporator and provides on the control outputs appropriate control signals to the cooling fan and the compressor clutch system, thereby improving the reliability of the commercial vehicle air conditioning system.