Title:
RESPONSIVENESS LEARNING DEVICE OF PRESSURE SENSOR
Document Type and Number:
Japanese Patent JP2015040535
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a responsiveness learning device of a pressure sensor capable of improving pressure detection accuracy of the pressure sensor.SOLUTION: While injection is performed by a predetermined cylinder, a combination of a first non-injection cylinder and a second non-injection cylinder is selected. A first non-injection time sensor waveform is detected on the basis of an output of a pressure sensor corresponding to the first non-injection cylinder, and a second non-injection time sensor waveform is detected on the basis of an output of the pressure sensor corresponding to the second non-injection cylinder. Deviation of a response time between the first non-injection time sensor waveform and the second non-injection time sensor waveform is calculated, and, based on the calculated deviation, a learning value relating to responsiveness of the pressure sensor corresponding to the first non-injection cylinder is learned, repeatedly while sequentially changing a combination of the first non-injection cylinder and the second non-injection cylinder. When calculating the deviation, a detection time of the first non-injection time sensor waveform is corrected on the basis of the learning value corresponding to the first non-injection cylinder, and a detection time of the second non-injection time sensor waveform is corrected on the basis of the learning value corresponding to the second non-injection cylinder.
Inventors:
MATSUMOTO YUZO
YAMADA NAOYUKI
YAMADA NAOYUKI
Application Number:
JP2013172947A
Publication Date:
March 02, 2015
Filing Date:
August 23, 2013
Export Citation:
Assignee:
DENSO CORP
International Classes:
F02D45/00; G01L23/32
Domestic Patent References:
| JP2012041847A | 2012-03-01 | |||
| JP2012062849A | 2012-03-29 | |||
| JP2012219802A | 2012-11-12 | |||
| JP2012077653A | 2012-04-19 | |||
| JP2000314340A | 2000-11-14 | |||
| JP2012041847A | 2012-03-01 | |||
| JP2012062849A | 2012-03-29 | |||
| JP2012219802A | 2012-11-12 | |||
| JP2012077653A | 2012-04-19 | |||
| JP2000314340A | 2000-11-14 |
Foreign References:
| US20110295488A1 | 2011-12-01 | |||
| US20110295488A1 | 2011-12-01 |
Attorney, Agent or Firm:
Yamada Strength
Kyoko Hino
Matsuda 洋
Kyoko Hino
Matsuda 洋