Invention Grant
- Patent Title: Diagnosing cylinder pressure sensor gain and offset
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Application No.: US14971527Application Date: 2015-12-16
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Publication No.: US10481033B2Publication Date: 2019-11-19
- Inventor: Alok A. Joshi , Richard A. Booth , Edmund P. Hodzen
- Applicant: Cummins, Inc.
- Applicant Address: US IN Columbus
- Assignee: Cummins, Inc.
- Current Assignee: Cummins, Inc.
- Current Assignee Address: US IN Columbus
- Agency: Foley & Lardner LLP
- Main IPC: G01L27/00
- IPC: G01L27/00 ; F02D41/22 ; G01M15/08 ; G01L23/24 ; F02D35/02 ; F02D41/04 ; F02D41/24 ; F02D41/28

Abstract:
An apparatus includes a sensor module, an offset diagnostic module, and a notification module. The sensor module is in operative communication with a cylinder pressure sensor and structured to acquire cylinder pressure data from the cylinder pressure sensor indicative of an actual in-cylinder pressure of a cylinder of an engine. The offset diagnostic module is structured to interpret the cylinder pressure data to determine an offset of the cylinder pressure sensor based on a reference in-cylinder pressure and the actual in-cylinder pressure. The notification module is structured to provide an offset error notification responsive to the offset being greater than a threshold offset.
Public/Granted literature
- US20170176280A1 DIAGNOSING CYLINDER PRESSURE SENSOR GAIN AND OFFSET Public/Granted day:2017-06-22
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