Patent ID: 11920549
Assignee: NISSAN MOTOR CO., LTD.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 1:
2. The engine control method according to claim 1, wherein
the setting the allowable timing difference range comprises:
setting a retarded angle-side allowable timing difference that is a threshold on the retarded angle side of the allowable timing difference range; and
setting an advanced angle-side allowable timing difference that is a threshold on the advanced angle side of the allowable timing difference range,

the determining whether or not the ignition timing of each cylinder falls within the allowable timing difference range comprises:
determining whether or not the ignition timing of each cylinder is set on the retarded angle side relative to the retarded angle-side allowable timing difference with respect to the reference ignition timing; and
determining whether or not the ignition timing of each cylinder is set on the advanced angle side relative to the advanced angle-side allowable timing difference with respect to the reference ignition timing, and

the engine control method comprises:
when the ignition timing of a cylinder is set on the retarded angle side relative to the retarded angle-side allowable timing difference with respect to the reference ignition timing, correcting the ignition timing of the cylinder so that the timing difference of the ignition timing of the cylinder on the retarded angle side with respect to the reference ignition timing is not larger than the retarded angle-side allowable timing difference; and
when the ignition timing of the cylinder is set on the advanced angle side relative to the advanced angle-side allowable timing difference with respect to the reference ignition timing, correcting the ignition timing of the cylinder so that the timing difference of the ignition timing of the cylinder on the advanced angle side with respect to the reference ignition timing is not larger than the advanced angle-side allowable timing difference.