Control system and control method for improving transient response of gas engine

A gas engine and control system technology, applied in the direction of engine control, engine components, combustion engines, etc., can solve the problems of low transient response, affecting the operation sensitivity of power devices, etc., and achieve good transient response, easy installation, low cost effect

Active Publication Date: 2015-07-15
JINAN RICHNES ELECTRONICS CO LTD
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Problems solved by technology

The engine measured by this gas injection control is limited by the responsiveness of the supercharger and the compressibility of the gas flow process in the intake and exhaust pipelines. When the load of the engine changes suddenly, the chang...

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  • Control system and control method for improving transient response of gas engine
  • Control system and control method for improving transient response of gas engine

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Embodiment Construction

[0031] In order to clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific implementation modes and in conjunction with the accompanying drawings. The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and / or letters in different instances. This repetition is for the purpose of simplicity and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. It should be noted that components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and processes are omitted herein to avoid unnecessarily limiting the...

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Abstract

The invention discloses a control system and a control method for improving the transient response of a gas engine. The control system comprises the gas engine, a fuel supply system, an ignition control system and a working state monitoring and feedback system, the fuel supply system comprises a fuel storage device, a gas line, a gas track and a gas injection valve, the ignition control system comprises an ignition module and an electronic controller, and the working state monitoring and feedback system comprises an engine speed sensor, an engine water temperature sensor, a gas track pressure sensor, an airflow sensor, an exhaust temperature sensor and an exhaust oxygen sensor. The invention utilizes the fuel storage device to increase the amount of stored gas and ensure the stability of pressure in the process of supplying gas; by acquiring information such as airflow, exhaust oxygen content, exhaust temperature and engine speed, the invention regulates the change of gas injection, and consequently, not only can the transient response of the gas engine be improved, but also the operating sensitivity of the gas engine as a power device of power source can be increased.

Description

technical field [0001] The invention relates to a control system and method for improving the transient response of a gas engine, belonging to the technical field of gas engine control. Background technique [0002] Gaseous fuels include natural gas, liquefied petroleum gas, coal bed methane, biomass gas, etc. As fuel for engines, gas has the advantages of wide sources, partial regeneration, and synthesis, and has the advantages of harmful gas and low carbon emissions in terms of emissions. It is widely used in automobiles, construction machinery, drilling power and other vehicles and power equipment, which is of great significance to alleviate the energy crisis and environmental pollution. [0003] The gas injection amount control strategy currently adopted by gas fuel engines such as natural gas is to use the air flow rate as the main control parameter of the gas injection amount per cycle, that is, calculate the gas injection amount per cycle through the air flow rate col...

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Application Information

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IPC IPC(8): F02M21/02F02D19/02
CPCY02T10/30
Inventor 李娜吴长忠张强
Owner JINAN RICHNES ELECTRONICS CO LTD
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