Method for obtaining best advance angle of ignition of coke-oven gas engine

A technology of ignition advance angle and coke oven gas, which is applied in the direction of engine components, combustion engines, machines/engines, etc., can solve problems such as air pollution, failure to take into account emissions, excessive nitrogen oxide emissions, etc., and achieve the effect of rapid acquisition

Active Publication Date: 2018-11-06
HANGZHOU DIANZI UNIV
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Problems solved by technology

The ignition advance angle determined by this method only considers the power of the engine, but does not take into account the emission. When appli

Method used

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  • Method for obtaining best advance angle of ignition of coke-oven gas engine
  • Method for obtaining best advance angle of ignition of coke-oven gas engine
  • Method for obtaining best advance angle of ignition of coke-oven gas engine

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Embodiment Construction

[0030] The present invention will be further explained below in conjunction with the drawings.

[0031] Such as figure 2 As shown, the method of the present invention for obtaining the best ignition advance angle of a coke oven gas engine, the specific steps are as follows:

[0032] The first step: Determine the ignition advance angle range of the coke oven gas engine under different working conditions (no knock, and the fluctuation range of speed and power are both within 5%).

[0033] Such as figure 1 As shown, the coke oven gas engine 1 is modified on the basis of a gasoline engine. The fuel supply system of the coke oven gas engine 1 includes a coke oven gas tank 2 and a pressure reducing valve 3. First, the dynamometer 4 controls the operating conditions of the coke oven gas engine (the operating conditions are the speed and power), and at the same time obtains the torque of the coke oven gas engine under each operating condition; the data acquisition and control system 8 con...

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Abstract

The invention discloses a method for obtaining the best advance angle of ignition of a coke-oven gas engine. A common advance angle of ignition optimization method, MBT, fails to take emission performance into account and leads to emission of nitrogen oxides exceeding the standard seriously when applied to the coke-oven gas engine. According to the method, the coke-oven gas engine improved by a gasoline engine is adopted, and with combination of a dynamometer, an emission analyzer and a combustion analyzer, influence rules on engine power performance and emission characteristics by the advanceangle of ignition under different working conditions are researched, algorithm of advance angle of ignition optimization is adopted based on the influence rules to establish a single objective solution model and calculate the best advance angle of ignition under different working conditions. The obtained best advance angle of ignition can be written in ignition MAP of ECU to be used for actual control of the coke-oven gas engine.

Description

Technical field [0001] The invention belongs to the technical field of engine engineering, relates to a method for obtaining the best ignition advance angle of a coke oven gas engine, and is suitable for a coke oven gas engine. When the engine uses coke oven gas, this method can obtain the best ignition advance angle that takes into account power and emissions of the engine under various working conditions, and recalibrate the ignition MAP in the ECU to make it directly Used in coke oven gas engines. Background technique [0002] With the rapid development of the automobile industry, its huge energy consumption has threatened the country's energy supply security. At the same time, the large amount of exhaust gas emitted has also directly threatened the ecological environment and human health. Alternative fuels for clean vehicles have become an important research topic in various countries. Among them, alcohol fuels and gas fuels are the most widely used alternative fuels. Howeve...

Claims

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Application Information

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IPC IPC(8): F02P5/15F01N11/00
CPCF01N11/00F02P5/15Y02T10/40
Inventor 何海斌舒涌赵福建李胜磊
Owner HANGZHOU DIANZI UNIV
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