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METHOD AND SYSTEM FOR DIAGNOSING AND/OR CONTROLLING A RECIPROCATING ENGINE HAVING A VARIABLE COMPRESSION RATIO

  • US 20190316517A1
  • Filed: 05/31/2017
  • Published: 10/17/2019
  • Est. Priority Date: 05/31/2016
  • Status: Active Grant
First Claim
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1. A method of diagnosing or controlling a reciprocating piston engine with a variable compression ratio, comprising:

  • determining a first value of a rotational irregularity parameter of a crankshaft of the reciprocating piston engine; and

    determining a value of a compression ratio parameter for the reciprocating piston engine on the basis of the first value of the rotational irregularity parameter.

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