Control device for internal combustion engine and control method for internal combustion engine
AssigneeYanmar Co., Ltd.
InventorsGo ASAI, Hideyuki OGAWA, Gen SHIBATA, Kenji YAMAZAKI
Life of this patent
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Abstract
A control device (100) to be applied to an internal combustion engine (1) having a fuel reformation cylinder (2) and an output cylinder (3), wherein the compression end gas temperature of the fuel reformation cylinder (2) is adjusted by changing an EGR gas amount, an effective compression ratio, or a polytropic number according to an equivalence ratio in the fuel reformation cylinder (2) so as to achieve a target concentration of a specific gas component in reformed fuel generated in the fuel reformation cylinder (2). The target concentration is defined according to a required engine power.
Claims9
A control device for an internal combustion engine including a fuel reformation cylinder and an output cylinder to which reformed fuel generated in the fuel reforming cylinder is supplied, the output cylinder being configured to yield an engine power by combusting the reformed fuel, the control device comprising:
- a gas temperature adjustment unit configured to adjust a gas temperature in the fuel reformation cylinder at a time of fuel reformation according to an equivalence ratio in the fuel reformation cylinder so that a concentration of a specific gas component in the reformed fuel generated in the fuel reformation cylinder is a target concentration defined according to a required engine power.
A control method for an internal combustion engine including a fuel reformation cylinder and an output cylinder to which reformed fuel generated in the fuel reforming cylinder is supplied, the output cylinder being configured to yield an engine power by combusting the reformed fuel, wherein:
- the method adjusts a gas temperature in the fuel reformation cylinder at a time of fuel reformation according to an equivalence ratio in the fuel reformation cylinder so that a concentration of a specific gas component in the reformed fuel generated in the fuel reformation cylinder becomes a target concentration defined according to a required engine power.
Dependencies are inferred from the claim text.