| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a parallel driving device capable of specifying an abnormal driving circuit even if abnormality such as an opening failure inside a driving circuit occurs when an inductive load device is driven by a plurality of parallel driving devices. Ž<P>SOLUTION: The inductive load device B/C2 is driven in parallel by the driving circuits ECU 3, ECU 4. The ECU 3(4) includes: a driving element Q1(Q2) for supplying an electric current to the B/C2; a current limiting resistor R1(R2) connected to the Q1(Q2) in series and limiting a load current; and a bypass circuit 5(6) capable of short-circuiting the resistor R1(R2). CPUs 1, 2 determine the normality or abnormality of the respective the ECUs 3, 4 by operating one of the bypass circuits 5, 6 in turn, and by detecting a voltage at a common driving point (A point) of the B/C2, while driving the B/C2 in parallel by the Q1, Q2. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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