| 摘要 |
An ECU (30) calculates a peak current reaching time (Tp') (time it takes for a detection current to reach a target peak current (Ip)) as well as a specific current reaching difference time (∆Tth) (time it takes for the detection current to fall below a specific current (Ith) after having risen above the specific current (Ith). Then, using a pre-stored relation between specific current reaching difference time (∆Tth) and predefined peak current reaching time (Tp), the ECU calculates a predefined peak current reaching time (Tp) that corresponds to the present specific current reaching difference time (∆Tth). Using this predefined peak current reaching time (Tp), the ECU compares the present peak current reaching time (Tp') with the predefined peak current reaching time (Tp) (for example, the difference (∆Tp) between the peak current reaching time (Tp') and the predefined peak current reaching time (Tp) is calculated) in order to determine a detection current deviation of a current detection circuit (36). |
