CONTROLLER FOR ENGINE COOLING SYSTEM
First Claim
Patent Images
1. A controller for an engine cooling system in which an electric pump is controlled in such a manner as to circulate a coolant so that a cylinder head of an internal combustion engine is cooled, comprising:
- a temperature obtaining means for obtaining a temperature of the coolant;
a temperature determination means for determining a target temperature of the coolant at which an anti-knocking ability of the internal combustion engine is improved; and
a cooling control means for driving the electric pump to cool the cylinder head even after the internal combustion engine is shut off in a case that the temperature of the coolant obtained by the temperature obtaining means exceeds the target temperature determined by the temperature determination means.
1 Assignment
0 Petitions
Accused Products
Abstract
An internal combustion engine has a cylinder-head-passage through which an engine coolant flows toward a water jacket when a water pump is operated. The water pump is an electric water pump utilizing the electric power charged in the battery. A radiator is provided in the cylinder-head-passage. Even after the engine is shut off, the water pump is kept driven.
69 Citations
12 Claims
-
1. A controller for an engine cooling system in which an electric pump is controlled in such a manner as to circulate a coolant so that a cylinder head of an internal combustion engine is cooled, comprising:
-
a temperature obtaining means for obtaining a temperature of the coolant; a temperature determination means for determining a target temperature of the coolant at which an anti-knocking ability of the internal combustion engine is improved; and a cooling control means for driving the electric pump to cool the cylinder head even after the internal combustion engine is shut off in a case that the temperature of the coolant obtained by the temperature obtaining means exceeds the target temperature determined by the temperature determination means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. An air-conditioning system for an automobile, comprising a heat-exchanger for heating an air with a coolant of an internal combustion engine, wherein
the internal combustion engine includes a first coolant outlet through which the coolant passed through a cylinder head flows out, and a second coolant outlet through which the coolant passed through a cylinder block flows out, the heat-exchanger is comprised of a first exchanging portion and a second exchanging portion, the first exchanging portion receives the coolant from at least the first coolant outlet, and the second exchanging portion receives the coolant from the second coolant outlet of which temperature is higher than that of the coolant flowing into the first exchanging portion.
Specification