Air-Conditioning System for a Vehicle

Abstract

An air-conditioning system for a vehicle for performing cooling/air-heating of a temperature controlling object includes: a temperature detection unit 63 that detects a temperature of the temperature controlling object; a controller 61 that controls the air-conditioning system based on a temperature detected by the temperature detection unit 63 ; a prediction unit 61 that predicts a forward temperature of the temperature controlling object based on at least either one of a detected temperature detected by the temperature detection unit 63 and a current vehicle driving state; a target temperature change unit 61 that changes a target temperature of the temperature controlling object or a target temperature of a cooling medium in the air-conditioning system for a vehicle based on a result of prediction by the prediction unit 61 ; wherein the controller 61 controls cooling/air-heating of the temperature controlling object based on a target temperature changed by the target temperature change unit 61.

1 . An air-conditioning system for a vehicle for performing cooling/air-heating of a temperature controlling object, comprising:
 a temperature detection unit that detects a temperature of the temperature controlling object;   a controller that controls the air-conditioning system based on a temperature detected by the temperature detection unit;   a prediction unit that predicts a forward temperature of the temperature controlling object based on at least either one of a detected temperature detected by the temperature detection unit and a current vehicle driving state;   a target temperature change unit that changes a target temperature of the temperature controlling object or a target temperature of a cooling medium in the air-conditioning system for a vehicle based on a result of prediction by the prediction unit; wherein   the controller controls cooling/air-heating of the temperature controlling object based on a target temperature changed by the target temperature change unit.   
     
     
         2 . An air-conditioning system for a vehicle according to  claim 1 , further comprising:
 a refrigeration cycle circuit having a compressor that compresses a first cooling medium and a first heat exchanger that exchanges heat between the first cooling medium and external air;   a cooling circuit that circulates a second cooling medium to the temperature controlling object to perform cooling/air-heating of the temperature controlling object; and   a second heat exchanger that exchanges heat between the first cooling medium and the second cooling medium, wherein   the target temperature change unit changes a target temperature of the temperature controlling object or a target temperature of the second cooling medium based on a result of prediction by the prediction unit, and   the controller controls the refrigeration cycle circuit and the cooling circuit based on a temperature detected by the temperature detection unit and a target temperature changed by the target temperature change unit to control cooling/air-heating of the temperature controlling object.   
     
     
         3 . An air-conditioning system for a vehicle according to  claim 2 , wherein
 the vehicle driving state includes a vehicle speed and an accelerator pedal depressing amount input from vehicle side, and   the prediction unit predicts a forward temperature of the temperature controlling object based on the vehicle speed, the accelerator pedal depressing amount and a detected temperature detected by the temperature detection unit.   
     
     
         4 . An air-conditioning system for a vehicle according to  claim 2 , wherein
 the prediction unit predicts a forward temperature taking into consideration a travel plan information that is input from a navigation unit provided to the vehicle.   
     
     
         5 . An air-conditioning system for a vehicle, comprising:
 a refrigeration cycle circuit having a compressor that compresses a first cooling medium and a first heat exchanger that exchanges heat between the first refrigerant and external air;   a cooling circuit that circulates a second cooling medium to a temperature controlling object to perform cooling/air-heating of the temperature controlling object;   a second heat exchanger that exchanges heat between the first cooling medium and the second cooling medium;   a temperature detection unit that detects a temperature of the object of temperature adjustment;   a controller that controls the refrigeration cycle circuit and the cooling circuit based on a temperature detected by the temperature detection unit;   a prediction unit that predicts a forward vehicle travel state based on a travel plan information that is input from a navigation device provided to the vehicle; and   a target temperature change unit that changes an target temperature of the temperature controlling object or a target temperature of the second cooling medium based on a result of prediction by the prediction unit; wherein   the controller controls the refrigeration cycle circuit and the cooling circuit based on a target temperature changed by the target temperature change unit to control cooling/air-heating of the temperature controlling object.   
     
     
         6 . An air-conditioning system for a vehicle according to  claim 5 , wherein
 the temperature controlling object includes a vehicle interior and an equipment for electric-powered driving, and   the controller performs cooling/air-heating of the vehicle interior and the equipment for electric-powered driving based on the target temperature, when the prediction unit predicts a vehicle state of before start driving.   
     
     
         7 . An air-conditioning system for a vehicle according to  claim 5 , wherein
 the temperature controlling object includes a battery for vehicle driving, and   the controller controls cooling/air-heating for the battery for vehicle driving by the cooling circuit so that during charging a temperature of the battery for vehicle driving falls within a predetermined temperature range in which the battery for vehicle driving exhibits optimal charging/discharging efficiency, when the prediction unit predicts a charging of the battery for vehicle driving.   
     
     
         8 . An air-conditioning system for a vehicle according to  claim 7 , wherein
 during the charging, the refrigeration cycle circuit and the cooling circuit are driven by power of an external power source that is used in charging the battery for vehicle driving.   
     
     
         9 . An air-conditioning system for a vehicle according to  claim 2 , wherein
 the temperature controlling object includes a vehicle interior and an equipment for electric-powered driving, and   the controller performs controlling of cooling/air-heating of the equipment for electric-powered driving with higher priority over controlling of cooling/air-heating of the vehicle interior, when a temperature of the equipment for electric-powered driving is in the vicinity of the target temperature.