Methodology to compensate the effect of humidity and altitude on hcci combustion

A fuel ratio, internal combustion engine technology, used in combustion engines, fuel injection devices, internal combustion piston engines, etc., can solve problems such as changes in oxygen quality
CN102889148AInactive Publication Date: 2013-01-23GM GLOBAL TECH OPERATIONS LLC
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
GM GLOBAL TECH OPERATIONS LLC
Publication Date
2013-01-23
Estimated Expiration
Not applicable · inactive patent

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Abstract

A method for controlling combustion in a spark-ignition direct-injection internal combustion engine includes monitoring an engine operating mode and an ambient parameter, determining a deviation of the ambient parameter relative to a nominal ambient parameter, determining a nominal desired engine operation parameter based on engine speed and load, determining and adjusted desired engine operation parameter based on the nominal desired engine operation parameter and said deviation of the ambient parameter, and controlling the engine based on the engine operating mode and one of the nominal desired engine operation parameter and adjusted desired engine operation parameter.
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Description

technical field

[0001] The present invention relates to the operation and control of homogeneous charge compression ignition (HCCI) engines. Background technique

[0002] The statements in this section merely provide background information related to the present disclosure. Accordingly, this content is not intended to constitute an admission of prior art.

[0003] Internal combustion engines, especially automotive internal combustion engines, generally fall into one of two categories, namely, spark-ignition engines and compression-ignition engines. Conventional spark ignition engines (eg, gasoline engines) typically operate by introducing a fuel / air mixture into a combustion cylinder, which is then compressed during the compression stroke and ignited by a spark plug. Conventional compression ignition engines (eg, diesel engines) typically operate by introducing or injecting pressurized fuel into the combustion cylinder near top dead center (TDC) of the compression stroke, ...

Claims

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