Controlling method of air conditioning system for vehicles
AssigneeHalla Climate Control Corporation
InventorJeong-Hoon Lee
Life of this patent
Estimating the term…
Abstract
A method for controlling a vehicular air conditioning system including: setting up a target indoor temperature of a vehicle determined by a user; inputting inside and outside temperatures of the vehicle and solar radiation with reference to a sensor mounted on the vehicle; calculating a target discharge temperature of a vent (t1); inputting the maximum evaporator temperature (t2); setting up a target evaporator temperature by comparing t1 and t2; calculating the opening degree of a temperature control door; measuring actual evaporator temperature while controlling the discharge capacity of a compressor; calculating the opening degree of the temperature control door by using the actual opening degree of the compressor discharge capacity control valve and the actual evaporator temperature.
Claims16
A controlling method of air conditioning system for vehicles, the air conditioning system having at least one variable displacement swash plate type compressor and at least one evaporator, wherein the controlling method comprises the steps of:
- (a) setting up a target temperature inside the vehicle determined by a user;
- (b) detecting and inputting temperatures inside and outside the vehicle and solar radiation from sensors mounted on certain positions of the vehicle;
- (c) calculating a target discharge temperature (T1) of a vent by using the target temperature inside, the temperatures inside and outside the vehicle and solar radiation;
- (d) inputting a maximum evaporator temperature (T2), wherein the maximum evaporator temperature (T2) is calculated and inputted depending on the temperature of the air flowed into the evaporator at the minimum operation of the compressor;
- (e) setting up a target evaporator temperature determined by comparing the T1 with the T2 wherein when T1<T2, T1 is determined as the target evaporator temperature and when T1>T2, T2 is determined as the target evaporator temperature;
- (f) calculating the opening degree of a temperature control door depending on the target evaporator temperature;
- (g) measuring the actual evaporator temperature while controlling the discharge capacity of the at least one variable displacement swash plate type compressor according to the target evaporator temperature, and transmitting the actual evaporator temperature to a certain step;
- (h) calculating the opening degree of the temperature control door by using the actual evaporator temperature and the opening degree of the discharge capacity control valve of the compressor determined by the target evaporator temperature;
- and
- (i) outputting the calculated opening degree of the temperature control door.
A controlling method of air conditioning system for vehicles, the air conditioning system having at least one variable displacement swash plate type compressor and at least one evaporator, wherein the controlling method comprises the steps of:
- (a) setting up a target temperature inside the vehicle determined by a user;
- (b) detecting and inputting temperatures inside and outside the vehicle and solar radiation from sensors mounted on certain positions of the vehicle;
- (c) calculating a target discharge temperature (T1) of a vent by using the target temperature inside, the temperatures inside and outside the vehicle and solar radiation;
- (d) inputting a maximum evaporator temperature (T2), wherein mapping data that have been pre-mapped at the minimum operation of the compressor through performance tests on major control factors are used in the input process,
- (e) setting up a target evaporator temperature determined by comparing the T1 with the T2 wherein when T1<T2, T1 is determined as the target evaporator temperature and when T1>T2, T2 is determined as the target evaporator temperature;
- (f) calculating the opening degree of a temperature control door depending on the target evaporator temperature;
- (g) measuring the actual evaporator temperature while controlling the discharge capacity of the at least one variable displacement swash plate type compressor according to the target evaporator temperature, transmitting the actual evaporator temperature to a certain step;
- (h) calculating the opening degree of temperature control door by using the actual evaporator temperature and the opening degree of the discharge capacity control valve of the compressor determined by the target evaporator temperature;
- and
- (i) outputting the calculated opening degree of the temperature control door.
Dependencies are inferred from the claim text.