Invention Grant
US09169784B2 Processing system and method for calculating pressure decreases due to injection events in a high-pressure fuel system
有权
用于计算由于高压燃料系统中的喷射事件引起的压力降低的处理系统和方法
- Patent Title: Processing system and method for calculating pressure decreases due to injection events in a high-pressure fuel system
- Patent Title (中): 用于计算由于高压燃料系统中的喷射事件引起的压力降低的处理系统和方法
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Application No.: US13763523Application Date: 2013-02-08
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Publication No.: US09169784B2Publication Date: 2015-10-27
- Inventor: Paul V. Moonjelly , David Lee Baldwin , David M. Carey , Donald J. Benson
- Applicant: CUMMINS INC.
- Applicant Address: US IN Columbus
- Assignee: Cummins Inc.
- Current Assignee: Cummins Inc.
- Current Assignee Address: US IN Columbus
- Agency: Faegre Baker Daniels LLP
- Main IPC: F02D1/06
- IPC: F02D1/06 ; F02M65/00 ; F02M63/02 ; F02D41/38 ; F02D41/22 ; F02D41/28
Abstract:
A system and method is provided to analyze an intermediate pressure signal portion between an end of an injection event signal portion and a start of a subsequent injection event signal portion. The analysis is simplified by identifying a plurality of single cycle windows and calculating a single value, such as a mean or a median, for each of the windows. An intermediate portion single value is determined by averaging the single values for each of the windows. The intermediate portion single value may then be used to identify pumping events or leakage errors that occur during the intermediate pressure signal portion that affect further analysis of the intermediate pressure signal portion.
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