Patent ID: 9739191
Date: 2017-08-22
CPC Classifications: B60K,B60W,F01N,F01P,F02D,Y02T

Claim:
1. A cooling water control apparatus which controls a cooling apparatus of an engine, the engine having at least one sensor for outputting information regarding cooling water temperature of cooling water that circulates through the cooling apparatus, the cooling apparatus having: (i) a first pipe in which the cooling water circulates via a pump between an exhaust heat recovery equipment and a heater core while bypassing the engine; and (ii) a second pipe in which the cooling water circulates via the pump between the engine and the heater core, the cooling water control apparatus having a controller including a processor and memory, and the controller configured to receive the cooling water temperature information output from the at least one sensor: the controller being configured to set a target heat amount line such that a condition where a transferred heat amount which is transferred to the heater core is equal to a required heat amount which is required by the heater core is satisfied at a desired time point at which the transferred heat amount starts to be actually used, the target heat amount line representing a successive target value of the transferred heat amount during a period until the desired time point; and the controller being configured to (i-1) make the cooling water circulate in the first pipe and (i-2) stop the circulation of the cooling water in the second pipe by closing a flow amount adjusting valve, and (ii) adjust an output of the engine such that the transferred heat amount follows the target heat amount line.