Automatic air conditioner having learning function and control method of control system
AssigneeDenso Corporation
InventorsAkira Ohga, Takayoshi Kawai, Yoshinori Ichishi, Yuichi Kajino
Life of this patent
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Abstract
In a vehicle air conditioner, when a passenger manually reduces an air blowing amount in a large blowing amount area of automatic control, a correction of the blower voltage control characteristic is changed in accordance with a condition capable of determining a passenger's request. For example, as the condition, at least one of a target blowing temperature of air blown into a passenger compartment and a passed time after start of the automatic control can be used. Therefore, the corrected blower voltage control characteristic after the manual operation can be made suitable for the passenger's preference.
Claims16
An air conditioner for a vehicle, comprising:
- a blower for blowing air into a passenger compartment;
- an operation device through which an air blowing amount from the blower is manually changed;
- and
- a control device for automatically controlling the air blowing amount in accordance with an automatic control characteristic, and for correcting the automatic control characteristic when the air blowing amount is manually changed by the operation device, wherein:
- the control device includes determining means for determining whether the air blowing amount is in a first area larger than a predetermined amount or in a second area smaller than the predetermined amount;
- the control device has a condition value for determining whether a passenger wants to reduce the air blowing amount in the first area or to change a switching point at which the air blowing amount is switched between the first area and the second area;
- and
- the control device changes a correction of the automatic control characteristic in accordance with the condition value when the air blowing amount is manually reduced through the operation device when the determining means determines that the air blowing amount is in the first area.
A control method of a control system for a vehicle air conditioner, the control system being for automatically controlling an air blowing amount to be blown into a passenger compartment based on a temperature relative to an inside air temperature of the passenger compartment in any one of a first area where the air blowing amount is larger than a first predetermined amount, a second area where the air blowing amount is between the first predetermined amount and a second predetermined amount smaller than the first predetermined amount, and a third area where the air blowing amount is smaller than the second predetermined amount, the control method comprising:
- storing at least a relationship between the air blowing amount and the temperature relative to the inside air temperature as a map;
- reading signals from sensors and operation switches;
- determining the temperature relative to the inside air temperature;
- determining the air blowing amount based on the determined temperature relative to the inside air temperature, in accordance with the relationship;
- determining whether the air blowing amount is manually changed when automatic control of the air blowing amount is performed;
- determining whether the air blowing amount at a start time of manual change is in the first area, when the air blowing amount is manually changed;
- changing and newly storing the relationship for learning such that the air blowing amount in the first area is reduced, when the temperature relative to the inside air temperature is lower than a predetermined temperature when the air blowing amount is manually reduced in the first area and a condition value is in a first state;
- and
- changing and newly storing the relationship for learning such that the air blowing amount in the second area is reduced when the air blowing amount is manually reduced in the first area when the condition value is in a second state.
Dependencies are inferred from the claim text.