| 摘要 |
PURPOSE: A method for detecting clogging of a cooling route is provided to prevent degradation of cooling performance and reduction of durability and to prevent unnecessary cost by restraining unnecessary replacement. CONSTITUTION: A method for detecting clogging of a cooling route comprises: a step(S1) of determining a rotation number of a cooling fan, a step of detecting rpm of the rotary fan per the rotation number, and setting the rotation number as a standard rotation number(V1); a step(S2) of detecting current rotation number(V2) of the cooling fan; a step(S3) of comparing the rotation number(V2) with the standard rotation number(V1); and a step(S4) of judging the clogging phenomenon of a cooling route is occurred if the current rotation number of the cooling fan is same or over than the standard rotation number. [Reference numerals] (AA) Start; (S1) Determine a rotation step of a cooling fan; (S2) Set a standard rotary number(V1) of a cooling fan per rotation step; (S3) Detect a present rotation number(V2) of a cooling fan; (S5) Operate warning unit |
