Method of estimating crack angles and rotation speeds of engine

Details Method of estimating crack angles and rotation speeds of engine Method of estimating crack angles and rotation speeds of engine

2007-03-27

2007-03-27

McCall, Eric S. (Department: 2855)

Measuring and testing

Vehicle chassis

Steering

Reexamination Certificate

active

11420805

ABSTRACT:
A method for estimating crank angles and rotation speeds of an engine, having a signal processing unit to generate a dynamic sampling signal based on the tooth number signal of the crank detected by a crank angle sensor, an estimation unit designed by a discrete kinematic model and containing an estimator and a feedback gain matrix to read the dynamic sampling signal, and a crank rotation stroke discriminator allowing the signal processing unit to calculate a more precise crank dynamic sampling signal, so as to preclude external noises to interfering control of the engine.

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patent: 2004/0182142 (2004-09-01), Nakamura et al.
patent: 1243904 (2005-11-01), None

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