| 摘要 |
The present invention relates to a method for identifying a malfunctioning fuel injector (150a, 150b, 150c, 150d, 150e, 150f) associated with an individual cylinder (Ca, Cb, Cc, Cd, Ce, Cf) of a multicylinder combustion engine (60). The method comprises the step of generating a first data set (r(t)) comprising engine-speed values (rl-r20; rl-rl20) corresponding to at least one cylinder of said engine. The method also comprises the step of processing said first data set (r(t)) so as to generate a second data set (s(t)) depending upon said first data set (r(t)). The method further comprises the steps of processing said second data set (s(t)) so as to establish a detection value (d(t)), and comparing said detection value (d(t)) with a predetermined threshold value (K), and identifying at least one malfunctioning fuel injector depending upon said comparison, and weighting of said second data set by means of a weight vector during the step of establishing the detection value. |
