Title:
FUNCTION CHECKING METHOD OF INJECTION QUANTITY MEASURING DEVICE
Document Type and Number:
Japanese Patent JP2016211473
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a function checking method of an injection quantity measuring device capable of improving function checking accuracy without deteriorating productivity.SOLUTION: A function checking method of an injection quantity measuring device includes a first approximate linear expression calculation step (S23) and a first linearity judging step (S24). On the first approximate linear expression calculation step, a control part calculates a first approximate linear expression which exhibits linearity of a first pressure sensor from a relation of measurement injection quantity measured as the injection quantity by a volume flow meter at each of a plurality of measurement injection conditions and a pressure rising amount detected by a first pressure sensor. On the first linearity judging step, the control part judges the linearity of the first pressure sensor based on whether a difference between the first approximate linear line and the measurement injection quantity falls into the range of error or not.SELECTED DRAWING: Figure 3
Inventors:
KAWASAKI YUKI
Application Number:
JP2015097117A
Publication Date:
December 15, 2016
Filing Date:
May 12, 2015
Export Citation:
Assignee:
DENSO CORP
International Classes:
F02M65/00; G01F9/00
Domestic Patent References:
| JP2001123917A | 2001-05-08 | |||
| JP2014084754A | 2014-05-12 | |||
| JP2000032622A | 2000-01-28 | |||
| JP2003161225A | 2003-06-06 |
Foreign References:
| WO2014188817A1 | 2014-11-27 |
Attorney, Agent or Firm:
Masaki Hattori