Title:
Engine control
Document Type and Number:
Japanese Patent JP6292209
Kind Code:
B2
Abstract:
A control system of an engine including a cylinder, an intake passage, and an exhaust passage is provided, that includes a fuel injector for injecting fuel into the cylinder, an exhaust gas recirculation (EGR) passage communicating the intake passage with the exhaust passage and for recirculating, as EGR gas, a portion of exhaust gas in the exhaust passage back to the cylinder, an EGR valve capable of controlling an EGR ratio by changing an EGR gas amount recirculated to the cylinder, a water injector for injecting water into the cylinder, and a controller. The controller controls the EGR valve to set a target EGR ratio according to an engine operating state so as to bring an actual EGR ratio to the target EGR ratio, and when the target EGR ratio is increased, the controller controls the water injector to increase an amount of the water injected into the cylinder.
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Inventors:
Masahiko Fujimoto
Hiroyuki Yamashita
Hiroyuki Yamashita
Application Number:
JP2015222424A
Publication Date:
March 14, 2018
Filing Date:
November 12, 2015
Export Citation:
Assignee:
Mazda Corporation Inc
International Classes:
F02D19/12; F02B47/02; F02D21/08; F02D43/00; F02M25/025; F02M25/03
Domestic Patent References:
| JP2004068776A | ||||
| JP2009114957A | ||||
| JP2010084660A | ||||
| JP2015094334A |
Foreign References:
| US20130218438 | ||||
| US9528475 |
Attorney, Agent or Firm:
Etsushi Kotani
Masataka Otani
Ko Sato
Masataka Otani
Ko Sato