| 摘要 |
PROBLEM TO BE SOLVED: To provide an engine control system for an engine having a crankshaft and at least one camshaft with variable valve timing, in a rotation transmitting train between the crankshaft and the camshaft. SOLUTION: In this engine control system, a first value indicative of a cam angle at a home position at a first time is compared to a second value indicative of a cam angle at the home position at a second, earlier, time which is stored in a storage device 28. Where a deviation in the compared values is detected that does not exceed a threshold value, the first value is stored for use in a subsequent comparison in the storage device 28. Where a deviation in the compared values is detected that does exceed a threshold value, a failure condition is detected and a MIL light 32 is illuminated. In this case, the second value stored for comparison is not updated. COPYRIGHT: (C)2008,JPO&INPIT
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