초록 ▼

Apparatus for controlling an automotive air conditioner comprises first and second air distribution passageways in which blower fans are provided to direct air streams respectively therethrough to first and second areas of a passenger compartment. First and second evaporators located in the first an

Apparatus for controlling an automotive air conditioner comprises first and second air distribution passageways in which blower fans are provided to direct air streams respectively therethrough to first and second areas of a passenger compartment. First and second evaporators located in the first and second passageways respectively are supplied with working fluid to transfer thermal energy from the first and second air streams to the supplied working fluid. A control unit is responsive to the temperatures of the first and second areas and temperature settings for estimating thermal energies of the first and second air streams to be delivered from the passageways and derives first and second control signals from the estimated thermal energies to control actuators which individually regulate the flow rates of the working fluid supplied to the first and second evaporators.

대표청구항 ▼

An apparatus for controlling an air conditioner mounted on an engine driven vehicle having a passenger compartment, comprising: means for forming first and second air distribution passageways and directing first and second air streams respectively therethrough to first and second areas of said passe

An apparatus for controlling an air conditioner mounted on an engine driven vehicle having a passenger compartment, comprising: means for forming first and second air distribution passageways and directing first and second air streams respectively therethrough to first and second areas of said passenger compartment; first and second evaporators located in said first and second passageways respectively; a refrigerant supply source including a variable capacity compressor for supplying refrigerant through said passageways to said evaporators; temperature sensors for detecting the temperatures in said first and second areas and outside said passenger compartment; temperature setting means for establishing reference temperatures for said first and second areas; control means for estimating thermal energies of said first and second air streams, delivered from said evaporators, from said detected temperatures and said reference temperatures, evaluating said estimated thermal energies to generate a first control signal when either one of said first and second areas requires a cooling demand and a second control signal when both of said areas require said demand, and causing said compressor to operate at a lower or a higher capacity in response to said first and second control signals, respectively; solenoid-operated clutch means for coupling said variable capacity compressor to the vehicle engine in response to each of said first and second signals and decoupling the compressor from the engine in response to the absence of said first and second signals; and first and second solenoid-operated valve means respectively located in said first and second passageways for controlling the flow rates of said refrigerants passing therethrough in response to said first and second control signals, respectively.