| 摘要 |
Method for detecting an air filter condition, in particular for combustion engines, comprising the following steps - (ik) calculation of a linear regression over data-couples 5 values, each comprising pressure drop value (ia) at the air filter and square of air flow value (ib) crossing the air filter, corresponding to said pressure drop value, in order to obtain an angular coefficient (k) of the linear regression, (iki) comparison of the angular coefficient or of 10 the function construed on the angular coefficient with at least one threshold (ThL, Thl, ThH) in order to detect (ikii) an operative condition of the air filter (Fig. 1). ik (ia ib) iki ikiii Fig I |
