Title:
A throttle control device of a variety fuel engine
Document Type and Number:
Japanese Patent JP6269519
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a control device for a multi-fuel engine, by means of which a fuel economy performance of an engine is improved as much as possible while an output performance or responsiveness of the engine is assured.SOLUTION: The control device for a multi-fuel engine controls a first and a second fuel injection valves 18A, 18B in such a way that first fuel and second fuel are supplied to an engine 10 at a prescribed rate and a combustion air-fuel ratio in a combustion chamber of the engine 10 becomes a prescribed first lean air-fuel ratio when a load of the engine 10 is a prescribed load or higher or output of the engine 10 is not constant. When, on the other hand, the engine 10 is operated under a load lower than the prescribed load and at a constant output, the control device for the multi-fuel engine performs the first fuel single injection control for controlling the first fuel injection valve 18A in such a way that only the first fuel is supplied to the engine 10 and a combustion air-fuel ratio in the combustion chamber of the engine 10 becomes an air-fuel ratio higher than the first lean air-fuel ratio.SELECTED DRAWING: Figure 2
More Like This:
Inventors:
Dozo Ichiho
Kazuo Imai
Yoshitaka Nomoto
Kazuo Imai
Yoshitaka Nomoto
Application Number:
JP2015010320A
Publication Date:
January 31, 2018
Filing Date:
January 22, 2015
Export Citation:
Assignee:
Mazda Corporation Inc
International Classes:
F02D19/08; B60K6/24; B60K6/46; B60W10/06; B60W20/00; F02D29/06; F02D41/04; F02D41/14; F02D45/00
Domestic Patent References:
| JP2004190640A | ||||
| JP1232119A | ||||
| JP2119642A | ||||
| JP2011046216A | ||||
| JP58174089A | ||||
| JP2007269227A | ||||
| JP6200805A |
Attorney, Agent or Firm:
Maeda patent office