| 摘要 |
An improved knock suppression apparatus and method for an internal combustion engine is able to determine whether knocking is taking place in each of the engine cylinders through a microcomputer, reduce the load on the hardware components employed and simplify the arrangement thereof to a substantial extent. To this end, it is determined whether knocking is taking place in each cylinder. It is further determined whether such knock determination is incorrect due to noise. If the knock determination is correct, then the knocking cylinder alone is subject to knock control such as ignition timing retarding control so as to suppress the knocking. On the other hand, if incorrect, the knock control on the cylinder is suppressed.
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