公开(公告)号：US09322302B2

公开(公告)日：2016-04-26

申请号：US14446356

申请日：2014-07-30

Applicant: Caterpillar Motoren GmbH & Co. KG

Inventor： Hendrik Johannes Lange ,  Andreas Banck ,  Markus Krueger

IPC: F01L1/34 ,  F01L1/344 ,  F02D13/02 ,  F02D41/00 ,  F01L1/14 ,  F02M39/02 ,  F02M59/10 ,  F02D1/16 ,  F01L13/00 ,  F01L1/047

CPC classification number: F01L1/344 ,  F01L1/146 ,  F01L13/0063 ,  F01L2001/054 ,  F01L2013/103 ,  F01L2013/105 ,  F01L2013/106 ,  F01L2105/02 ,  F01L2820/01 ,  F02D1/16 ,  F02D13/0238 ,  F02D13/0269 ,  F02D41/0002 ,  F02D2001/165 ,  F02M39/02 ,  F02M59/102 ,  Y02T10/142 ,  Y02T10/42

Abstract: A control system is disclosed for operating an internal combustion engine. The control system includes a control unit configured for providing a part load mode that is optimized for slow operation of the engine at loads up to an upper part load limit in the range from 40% to 75% of a maximum engine load. The control unit is also configured for providing a high load mode for engine loads above the upper part load limit. In the part load mode, at least one inlet valve is closed at a closing angle later than in the high load mode.

Abstract translation: 公开了一种用于操作内燃机的控制系统。 该控制系统包括一个控制单元，该控制单元被配置为提供对于在最大发动机负载的40％至75％范围内的负载下的发动机的慢速运行而被优化的部分负载模式。 控制单元还被配置为提供高于上部负载极限的发动机负载的高负载模式。 在零件加载模式下，至少一个入口阀在比高负载模式下的闭合角度闭合。

公开(公告)号：US09845743B2

公开(公告)日：2017-12-19

申请号：US14852878

申请日：2015-09-14

Applicant: Caterpillar Motoren GmbH & Co. KG

Inventor： Hauke Holst ,  Hendrik Johannes Lange ,  Eike Joachim Sixel ,  Marius Wolfgramm ,  Arvind Sivasubramanian

IPC: F02D41/14 ,  F02P9/00 ,  F02D41/00 ,  F02D19/06 ,  F02D35/02 ,  F02D37/02

CPC classification number: F02D41/0027 ,  F02D19/0642 ,  F02D35/023 ,  F02D37/02 ,  F02D41/1475 ,  F02P9/002 ,  Y02T10/36

Abstract: A method for controlling an internal combustion engine operating on at least partly gaseous fuel is disclosed. The method may include providing a desired burn rate profile corresponding to a desired operation of the internal combustion engine. The method may further include selecting first operating parameters such that an operation of the internal combustion engine with a first gas composition produces a first burn rate profile that corresponds to the desired burn rate profile. The method may also include operating the internal combustion engine with the first operating parameters using a second gas composition. The method may include determining that the second burn rate profile differs from the desired burn rate profile. In addition, the method may include adjusting an operating parameter from among the first operating parameters of the internal combustion engine to approach the desired burn rate profile.