Title:
SENSOR OUTPUT VALUE ESTIMATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/016304
Kind Code:
A1
Abstract:
The present invention pertains to a sensor output value estimation device that effectively estimates sensor output values reflecting the lag in the response of a temperature sensor. The present invention is provided with an estimated gas temperature calculation unit (43) for calculating an estimated gas temperature for an engine (10) on the basis of at least the operating state of the engine (10) and the state function of the gas in the engine (10), and an estimated sensor output value calculation unit (44) for calculating an estimated sensor output value reflecting the lag in the response of a temperature sensor (31) on the basis of the calculated estimated gas temperature and a pre-stored first model formula specifying the relationship of the temperature change time constant of the temperature sensor (31), the gas flow rate, and the gas temperature.
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Inventors:
HANAWA SATOSHI (JP)
IKAI YOSHIAKI (JP)
IKAI YOSHIAKI (JP)
Application Number:
PCT/JP2014/070197
Publication Date:
February 05, 2015
Filing Date:
July 31, 2014
Export Citation:
Assignee:
ISUZU MOTORS LTD (JP)
TRANSTRON INC (JP)
TRANSTRON INC (JP)
International Classes:
F02D45/00; F02M25/07; G01K7/00
Foreign References:
| JPH07119514A | 1995-05-09 | |||
| JP2008076311A | 2008-04-03 | |||
| JPH0835418A | 1996-02-06 | |||
| JP2008076311A | 2008-04-03 |
Other References:
See also references of EP 3029303A4
Attorney, Agent or Firm:
KINUTANI Nobuo (JP)
Nobuo Kinutani (JP)
Nobuo Kinutani (JP)
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