Control device for vehicle
First Claim
1. A control device of a vehicle comprising a cooling device, the cooling device including a compressor for compressing refrigerant, a condenser for cooling the compressed refrigerant, an evaporator for cooling by vaporizing the cooled refrigerant, and an air-conditioner outlet port, the control device comprising a processor configured to:
- (i) calculate a target air-conditioner outlet port temperature (TAO) that is necessary to achieve a set or desired temperature within a predetermined time period under current conditions inside and/or outside of a passenger compartment of the vehicle;
(ii) compute, based on the TAO, a first transition curve over the predetermined time period, the first transition curve being computed so that a temperature of the evaporator transitions to a target evaporator temperature that is necessary for obtaining the TAO;
(iii) compute, based on the current conditions, a second transition curve showing an estimated transition of the of the temperature of the evaporator over the predetermined time period under the current conditions;
(iv) compare the first transition curve showing the transition to the target evaporator temperature over the predetermined time period with the second transition curve showing the estimate evaporator temperature transition over the predetermined time period; and
(v) if it is determined that the first transition curve becomes less than the second transition curve over the predetermined time period, execute a cooling capacity increase control.
1 Assignment
0 Petitions
Accused Products
Abstract
An engine and an electronic control unit perform cooling capacity increase control for compensating for a insufficiency of the cooling capacity of a cooling device. The electronic control unit performs a variety of control for a vehicle, including control of the cooling device. At that time, the electronic control unit calculates the target value of the cooling capacity of the cooling device, calculates the estimate value of the cooling capacity that will be able to be exerted in the future under the current control, compares the target value and the estimate value, and when it is determined from the result of the comparison that the cooling capacity will be insufficient, performs the cooling capacity increase control. The electronic control unit changes the contents of the cooling capacity increase control according to the degree of insufficiency of the estimate value with respect to the target value.
23 Citations
7 Claims
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1. A control device of a vehicle comprising a cooling device, the cooling device including a compressor for compressing refrigerant, a condenser for cooling the compressed refrigerant, an evaporator for cooling by vaporizing the cooled refrigerant, and an air-conditioner outlet port, the control device comprising a processor configured to:
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(i) calculate a target air-conditioner outlet port temperature (TAO) that is necessary to achieve a set or desired temperature within a predetermined time period under current conditions inside and/or outside of a passenger compartment of the vehicle; (ii) compute, based on the TAO, a first transition curve over the predetermined time period, the first transition curve being computed so that a temperature of the evaporator transitions to a target evaporator temperature that is necessary for obtaining the TAO; (iii) compute, based on the current conditions, a second transition curve showing an estimated transition of the of the temperature of the evaporator over the predetermined time period under the current conditions; (iv) compare the first transition curve showing the transition to the target evaporator temperature over the predetermined time period with the second transition curve showing the estimate evaporator temperature transition over the predetermined time period; and (v) if it is determined that the first transition curve becomes less than the second transition curve over the predetermined time period, execute a cooling capacity increase control. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification