Title:
CONTROL DEVICE AND CONTROL METHOD FOR GAS ENGINE AND GAS ENGINE EQUIPPED WITH CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/107753
Kind Code:
A1
Abstract:
The present invention suppresses a drop in the rotating speed of a gas engine due to a sudden load increase using a simple configuration. This control device (51) is equipped with: a required gas flow rate calculation unit (54) that calculates, from a deviation between an engine speed and a target engine speed, a required gas flow rate (Qg_d) for keeping the engine speed constant; a throttle valve opening calculation unit (55) that calculates a throttle opening in accordance with the required gas flow rate (Qg_d); a mixture gas flow rate calculation unit (56) that calculates a mixture gas flow rate (Qm) from the engine speed, an intake air pressure, an intake air temperature, the displacement of the engine, and so forth; a gas flow rate command value calculation unit (57) that calculates, from the mixture gas flow rate (Qm) and a target excess air ratio (λ) during a steady-state operation, a required gas flow rate command value (Qg_t) for matching with the target excess air ratio (λ); and a corrective calculation unit (58) that, when the required gas flow rate (Qg_d) is greater than the gas flow rate command value (Qg_t), downwardly adjusts the target excess air ratio (λ) such that the required gas flow rate (Qg_d) matches the gas flow rate command value (Qg_t).
Inventors:
SASE RYO (JP)
TAKAYANAGI KO (JP)
TAKAYANAGI KO (JP)
Application Number:
PCT/JP2014/079160
Publication Date:
July 23, 2015
Filing Date:
November 04, 2014
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD (JP)
International Classes:
F02D41/14; F02D19/02; F02D43/00
Foreign References:
JP2010539383A | 2010-12-16 | |||
JP2009057873A | 2009-03-19 | |||
JP2001003814A | 2001-01-09 | |||
JP2003097314A | 2003-04-03 | |||
JP2005180399A | 2005-07-07 | |||
JPH0533727A | 1993-02-09 |
Attorney, Agent or Firm:
FUJITA, Takaharu et al. (JP)
Takaharu Fujita (JP)
Takaharu Fujita (JP)
Download PDF:
Previous Patent: LUBRICATING OIL COMPOSITION FOR DIFFERENTIAL GEAR DEVICE
Next Patent: ORGANIC ELECTROLUMINESCENT DEVICE
Next Patent: ORGANIC ELECTROLUMINESCENT DEVICE