Method and apparatus for controlling vehicle air conditioner
First Claim
1. A method of controlling a vehicle air conditioner, which controls an outlet air flow rate and an outlet air temperature of air-conditioning air while balancing between a heat amount supplied from an air conditioner for adjusting the air-conditioning air into a passenger room, and a heat load acting on a vehicle, comprising:
- the first step of obtaining, from a heat balance equation, a plurality of combinations of the outlet air flow rates and the outlet air temperatures necessary for maintaining a passenger room temperature to be a predetermined target temperature;
the second step of calculating comfort indices each representing a comfort level of a passenger on the basis of state amounts of factors which influence comfort felt by the passenger in the passenger room, and the plurality of combinations of the outlet air flow rates and the outlet air temperatures obtained in the first step; and
the third step of searching a combination of the outlet air flow rate and the outlet air temperature, which can provide a comfort index closest to an optimal value of the comfort indices calculated in the second step.
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Accused Products
Abstract
This invention has as its object to provide a method and apparatus for controlling a vehicle air conditioner, which can obtain a combination of an outlet air flow rate Va and an outlet air temperature To, which is desirable for comfort of a passenger, under a condition of air-conditioning control based on a heat balance equation. In order to achieve this object, this invention provides a method of controlling a vehicle air conditioner including the first step of obtaining, from a heat balance equation, a plurality of combinations of the outlet air flow rates Va and the outlet air temperatures To necessary for maintaining the passenger room temperature to be a predetermined target temperature, the second step of calculating comfort indices each representing the comfort level of a passenger on the basis of state amounts of factors which influence comfort felt by the passenger in the passenger room, and the plurality of combinations of the outlet air flow rates Va and the outlet air temperatures To obtained in the first step, and the third step of searching a combination of the outlet air flow rate and the outlet air temperature, which can provide a comfort index closest to an optimal value of the comfort indices calculated in the second step.
21 Citations
16 Claims
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1. A method of controlling a vehicle air conditioner, which controls an outlet air flow rate and an outlet air temperature of air-conditioning air while balancing between a heat amount supplied from an air conditioner for adjusting the air-conditioning air into a passenger room, and a heat load acting on a vehicle, comprising:
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the first step of obtaining, from a heat balance equation, a plurality of combinations of the outlet air flow rates and the outlet air temperatures necessary for maintaining a passenger room temperature to be a predetermined target temperature; the second step of calculating comfort indices each representing a comfort level of a passenger on the basis of state amounts of factors which influence comfort felt by the passenger in the passenger room, and the plurality of combinations of the outlet air flow rates and the outlet air temperatures obtained in the first step; and the third step of searching a combination of the outlet air flow rate and the outlet air temperature, which can provide a comfort index closest to an optimal value of the comfort indices calculated in the second step. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of controlling a vehicle air conditioner, which controls an outlet air flow rate and an outlet air temperature of air-conditioning air while balancing between a heat amount supplied from an air conditioner for adjusting the air-conditioning air into a passenger room, and a heat load acting on a vehicle, comprising:
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the first step of predicting an optimal target temperature with reference to a comfort index having, as parameters, factors which influence comfort felt by a passenger in the passenger room, and on the basis of a comfort index obtained under an assumption that a control state of air-conditioning control is in a stable period, and a heat balance equation; the second step of selecting an outlet air flow rate and an outlet air temperature on the basis of the target temperature predicted in the first step and a comfort index having, as parameters, factors which influence comfort actually felt by the passenger in the passenger room; and the third step of executing the air-conditioning control on the basis of the outlet air flow rate and the outlet air temperature selected in the second step. - View Dependent Claims (11)
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12. An apparatus for controlling a vehicle air conditioner, which controls an outlet air flow rate and an outlet air temperature of air-conditioning air while balancing between a heat amount supplied from an air conditioner for adjusting the air-conditioning air into a passenger room, and a heat load acting on a vehicle, comprising:
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first calculation means for obtaining, from a heat balance equation, a plurality of combinations of the outlet air flow rates and the outlet air temperatures necessary for maintaining a passenger room temperature to be a predetermined target temperature; second calculation means for calculating comfort indices each representing a comfort level of a passenger on the basis of state amounts of factors which influence comfort felt by the passenger in the passenger room, and the plurality of combinations of the outlet air flow rates and the outlet air temperatures obtained by said first calculation means; and search means for searching a combination of the outlet air flow rate and the outlet air temperature, which can provide a comfort index closest to an optimal value of the comfort indices calculated by said second calculation means. - View Dependent Claims (13, 14, 15, 16)
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Specification