| 摘要 |
The present invention prevents an engine malfunction or an increase of hydrocarbons or carbon monoxides contained in the exhaust gas, even when an engine is not adequately warmed up to the full extent after a gear is engaged by a gear shift, thereby securing the stability of the engine and at the same time, contributing to a decrease in toxic substances contained in the exhaust gas. [Reference numerals] (AA) Start; (BB) Close a bypass valve; (CC) Reference period by a gear shift has passed?; (DD) End; (S10) Shifting is performed?; (S20) Coolant temperature < Reference temperature ? |
