公开(公告)号：US20160208731A1

公开(公告)日：2016-07-21

申请号：US14915074

申请日：2014-08-27

Applicant: ETH ZURICH

Inventor： Christopher H Onder ,  Tobias Ott

IPC: F02D41/40 ,  F02D41/30 ,  F02D35/02 ,  F02D41/00

CPC classification number: F02D41/40 ,  F02D35/023 ,  F02D35/028 ,  F02D41/0025 ,  F02D41/0027 ,  F02D41/3047 ,  Y02T10/36 ,  Y02T10/44

Abstract: Feedback control of combustion in a gas diesel dual-fuel engine (20), based on the measured cylinder pressure, has been invented. The center of combustion and pressure rise rate is controlled by manipulating the start of diesel injection and duration of diesel injection. Measurements of transient engine operation show, that the proposed controller is able to control the center of combustion and the maximum pressure rise rate. The influence of changing intake manifold pressure, changing exhaust gas recirculation rate and changing air-fuel ratio can be compensated by the controller (10). Steady state measurements show that the gas diesel dual fuel engine reaches efficiencies around 40% with stoichiometric air-fuel ratio and diesel ratios below 5%. The results have been obtained on a slightly modified production type common-rail diesel engine with four cylinders and a displacement volume of 2 litres.

Abstract translation: 已经发明了基于测量的气缸压力的柴油双燃料发动机（20）中燃烧的反馈控制。 燃烧中心和压力上升速率通过控制柴油喷射的启动和柴油喷射的持续时间来控制。 瞬态发动机运行的测量表明，所提出的控制器能够控制燃烧中心和最大压力上升速率。 改变进气歧管压力，改变废气再循环速率和改变空燃比的影响可由控制器（10）补偿。 稳态测量显示，柴油双燃料发动机的效率约为40％，化学计量空燃比和柴油比低于5％。 结果已经在具有四个气缸和2升排量的略微改型的生产型共轨柴油发动机上获得。

公开(公告)号：US10066572B2

公开(公告)日：2018-09-04

申请号：US14915074

申请日：2014-08-27

Applicant: ETH Zurich

Inventor： Christopher H Onder ,  Tobias Ott

IPC: F02M7/00 ,  F02D41/40 ,  F02D41/30 ,  F02D35/02 ,  F02D41/00

Abstract: Feedback control of combustion in a gas diesel dual-fuel engine (20), based on the measured cylinder pressure, has been invented. The center of combustion and pressure rise rate is controlled by manipulating the start of diesel injection and duration of diesel injection. Measurements of transient engine operation show, that the proposed controller is able to control the center of combustion and the maximum pressure rise rate. The influence of changing intake manifold pressure, changing exhaust gas recirculation rate and changing air-fuel ratio can be compensated by the controller (10). Steady state measurements show that the gas diesel dual fuel engine reaches efficiencies around 40% with stoichiometric air-fuel ratio and diesel ratios below 5%. The results have been obtained on a slightly modified production type common-rail diesel engine with four cylinders and a displacement volume of 2 liters.