Cummins Inc.

Panendra Kumar Sahu

David Michael Carey

Shailesh Nair

Mayur H Borate

Srinivas Kumar Mulukutla

A pressure-based piston top-dead-center ('TDC') position measurement system is disclosed, comprising: a fuel injector configured to inject fuel into a combustion chamber bounded in part by the piston; and a controller configured to control the fuel injector to cause a fuel injection when the piston is at each of a plurality of different positions relative to TDC while ensuring fuel is provided to the fuel injector at a substantially constant pressure. The controller is further configured to estimate a pressure in the combustion chamber in response to each fuel injection, fit a curve to the estimated pressures, and determine a TDC position of the piston as correlating with a maximum pressure on the curve.

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Pimpri Chinchwad, India

Panendra Kumar Sahu