Advanced science.  Applied technology.


Internal Combustion Engine Cylinder-to-Cylinder Balancing with Balanced Air-Fuel Ratios: 6,981,488


A method of balancing combustion among cylinders of an internal combustion engine. For each cylinder, a normalized peak firing pressure is calculated as the ratio of its peak firing pressure to its combustion pressure. Each cylinder's normalized peak firing pressure is compared to a target value for normalized peak firing pressure. The fuel flow is adjusted to any cylinder whose normalized peak firing pressure is not substantially equal to the target value.

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Ralph E. Harris; Gary D. Bourn; Anthony J. Smalley