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HCCI mode switching control system and method

A mode, combustion mode technology, applied in electrical control, engine control, machine/engine, etc., can solve problems such as difficult control of ignition process

Inactive Publication Date: 2015-07-15
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the ignition process tends to be more difficult to control since there is no direct combustion initiator

Method used

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  • HCCI mode switching control system and method
  • HCCI mode switching control system and method
  • HCCI mode switching control system and method

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Embodiment Construction

[0044] The following description is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. For purposes of clarity, the same reference numbers have been used in the drawings to identify similar elements. As used herein, the phrase at least one of A, B, and C should be construed to mean a logical (A or B or C) using a non-exclusive logical or. It should be understood that steps within a method may be executed in different order without altering the principles of the present invention.

[0045] As used herein, the term "module" refers to an application-specific integrated circuit (ASIC), electronic circuit, processor (shared processor, dedicated processor, or group processor) that executes one or more software or firmware programs and memory, combinational logic, and / or other suitable components that provide the described functionality.

[0046] The engine control system according to the invention operates a gasoline engine in a ...

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Abstract

A control system and method for operating an engine includes a threshold determination module that determines a plurality of combustion mode thresholds based on the engine speed and engine temperature. The control module also includes a transition module that compares the engine load and the plurality of combustion mode thresholds and changes a combustion mode of the engine in response to comparing the engine load and the plurality of combustion mode thresholds.

Description

technical field [0001] The present invention relates to engine control systems, and more particularly, to engine control systems for engines operating in spark ignition (SI) and homogeneous charge compression ignition (HCCI) modes. Background technique [0002] The background description provided herein is for the purpose of generally presenting the context of the disclosure. A portion of the inventor's work is described in the Background section, and aspects of this section, and aspects of this description that were not otherwise prior art at the time of filing the application, are neither expressly nor impliedly admitted to be prior art that would destroy the present invention . [0003] The engine is operable in a spark ignition (SI) mode and a homogeneous charge compression ignition (HCCI) mode. HCCI mode involves compressing the fuel and oxidizer to the point of auto-ignition. One of the above modes may be selected based on engine speed and load. In HCCI mode, ignit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D43/00
CPCY02T10/128F02D41/0225F02D41/3035F02D2200/021F02D41/3076F02D2200/703F02D2250/41F02D41/3041Y02T10/12
Inventor A·B·雷尔V·拉马潘P·卡法尼克J-M·康H·允
Owner GM GLOBAL TECH OPERATIONS LLC