System and method for engine cylinder power diagnosis by cylinde

Details System and method for engine cylinder power diagnosis by cylinde System and method for engine cylinder power diagnosis by cylinde

1997-11-14

1999-12-14

Dombroske, George

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

73116, 731173, 123436, G01M 1500

Patent

active

060029803

ABSTRACT:
A system and method for measuring individual cylinder power contribution by cutting out individual cylinders of a multi-cylinder engine and performing a snap-throttle test on the engine. Engine speed versus time data is collected and stored during each snap-throttle test. This data is then used to calculate the power contribution provided by each cylinder using various methods, such as a least squares analysis of the speed data or by an analysis of the kinetic energy of the test engine.

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