| 摘要 |
PROBLEM TO BE SOLVED: To improve heating performance during a period from automatic stop of an internal combustion engine to restart thereof.SOLUTION: A vehicular heating system of the present invention includes two cooling paths of a first cooling path and second cooling path, and a heater core that heats air-conditioning breeze into a vehicle in which an internal combustion engine is mounted. Through the first cooling path, a first coolant for cooling the internal combustion engine is circulated. The second cooling path is a cooling path different from the first cooling path, has a second coolant circulated through it, and is provided with an electric pump. The heater core uses at least the second coolant as a heat source for heating the air-conditioning breeze. The vehicular heating system implements such idle stop control that: when the internal combustion engine is in operation, if a predetermined stopping condition is met, the operation of the internal combustion engine is automatically stopped; and if a predetermined condition is met after automatic stop, the internal combustion engine is restarted. Further, the vehicular heating system predicts the automatic stop. If the automatic stop is estimated, a temperature drop of the second coolant is suppressed. |
