Method of control strategy for realizing jetting of fuel injector

A control strategy, fuel injector technology, applied in the direction of fuel injection control, electrical control, engine control, etc., can solve problems such as poor fuel injection atomization, combustion phase fluctuation, emission of particulates, etc.

Active Publication Date: 2016-11-09
湖南奔腾动力科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to overcome the technical problems existing in the prior art, such as poor atomization of direct injection in cylinders, particles emitted by direct injection in cylinders, and fluctuations in combustion phases, the present invention provides a method for realizing the injection control strategy of the fuel injector

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  • Method of control strategy for realizing jetting of fuel injector
  • Method of control strategy for realizing jetting of fuel injector
  • Method of control strategy for realizing jetting of fuel injector

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Embodiment Construction

[0022] The technical solution of the present invention will be described in detail below.

[0023] The method of the present invention to realize the injection control strategy of the fuel injector is: during the operation of the engine, the ECU controls the on and off of the pre-injection electromagnetic switch of the fuel injector, the post-injector fuel injection electromagnetic switch, and the main fuel injection electromagnetic switch of the fuel injector. , So that the pre-injection electromagnet of the injector, the post-injector injection electromagnet, the main injection electromagnet of the injector are energized, and the pre-injection electromagnet of the injector, the post-injector injection electromagnet and the injection The magnetism of the main fuel injection electromagnet of the fueler, under the action of electromagnetic force, the pre-injection rod of the fuel injector, the post-injector fuel injection rod, and the main fuel injection rod of the fuel injector mo...

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Abstract

The invention relates to a method of a control strategy for realizing jetting of a fuel injector. The method includes the steps that in the operation process of an engine, an ECU controls the on-off states of a fuel injector pre-injection electromagnetic switch, a fuel injector post-injection electromagnetic switch and a fuel injector main injection electromagnetic switch, then a fuel injector pre-injection electromagnet, a fuel injector post-injection electromagnet and a fuel injector main injection electromagnet can be electrified, the magnetism of the fuel injector pre-injection electromagnet, the fuel injector post-injection electromagnet and the fuel injector main injection electromagnet can be changed, under the effect of electromagnetic force, a fuel injector pre-injection rod, a fuel injector post-injection rod and a fuel injector main injection rod move upwards, and therefore pre-injection, post-injection and main injection are realized. According to the method, repeated accurate jetting of the fuel injector can be realized, the combustion phase and the combustion temperature can be controlled, fuel oil can be fully combusted, the thermotechnical conversion efficiency in a cylinder can be improved, the utilization rate of the energy of the fuel oil can be increased, clean combustion in the cylinder can be realized, generation of pollutants is reduced, and energy conservation and emission reduction can be realized.

Description

Technical field [0001] The invention relates to a method for the injection control strategy of an injector of an in-cylinder direct injection gasoline engine, in particular to a method for realizing the injection control strategy of the injector. Background technique [0002] The State Council issued the "Plan", clarifying the overall goal of China's automobile energy-saving standards, requiring the average fuel consumption of new passenger cars to reach 5.0L / 100km in 2020; with the country's deepening of energy-saving and emission reduction of internal combustion engines, the fuel consumption of internal combustion engines will be economical. The performance and emission performance of the internal combustion engine should be controlled from the source, that is, from the combustion control of the core of the engine to achieve clean combustion and low emission generation; and the control of the combustion phase has an impact on the fuel injection. The control strategy of the inje...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D41/38
CPCF02D41/38
Inventor 段雄波刘敬平袁志鹏
Owner 湖南奔腾动力科技有限公司
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