Automotive CNG and gasoline double-fuel supply system based on simultaneous control by single ECU

A supply system and simultaneous control technology, applied in engine control, combustion engine, internal combustion piston engine, etc., can solve problems such as difficulty in meeting drivability and emission performance requirements, difficulty in accurately controlling CNG injection volume, and large space occupation. The effect of saving design cycle and cost, saving system cost and low cost

Inactive Publication Date: 2014-03-12
武汉菱电汽车电控系统股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] ① There are two ECUs to control two fuels at the same time, which not only takes up a lot of space, but also has high production costs;
[0006] ②The amount of CNG injection is difficult to control accurately;
[0008] ④ It is difficult to meet the requirements of drivability and emission performance indicators

Method used

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  • Automotive CNG and gasoline double-fuel supply system based on simultaneous control by single ECU
  • Automotive CNG and gasoline double-fuel supply system based on simultaneous control by single ECU
  • Automotive CNG and gasoline double-fuel supply system based on simultaneous control by single ECU

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Embodiment Construction

[0049] Below in conjunction with accompanying drawing and embodiment describe in detail:

[0050] 1. System

[0051] 1. Overall

[0052] Such as figure 1 , the system consists of gasoline fuel tank 1, gasoline pump 2, gasoline pressure regulator 3, fuel filter 4, fuel rail assembly 5, engine 6, jet valve 7, pressure reducer 8, high pressure solenoid valve 9, gas filter Cleaner 10, natural gas cylinder 11 and electronic control unit (ECU) 12;

[0053] Its connection relationship is:

[0054] A gasoline pump 2 and a gasoline pressure regulator 3 are arranged in the gasoline fuel tank 1;

[0055] Gasoline fuel tank 1, gasoline pump 2, gasoline pressure regulator 3, fuel filter 4, fuel rail assembly 5, and engine 6 are connected in sequence to form a gasoline fuel supply unit;

[0056] Natural gas cylinder 11, gas filter 10, high-pressure solenoid valve 9, pressure reducer 8, gas rail assembly 7 and engine 6 are connected in sequence to form a CNG fuel supply unit;

[0057] ...

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Abstract

The invention discloses an automotive CNG and gasoline double-fuel supply system based on simultaneous control by a single ECU, and relates to automotive fuel supply systems. According to the automotive CNG and gasoline double-fuel supply system based on simultaneous control by the single ECU, a gasoline fuel tank (1), a gasoline pump (2), a gasoline pressure regulator (3), a fuel filter (4), a fuel rail assembly (5) and an engine (6) are sequentially connected to form a gasoline fuel supply unit; a gas cylinder (11), a fuel gas filter (10), a high pressure solenoid valve (9), a pressure reducer (8), a gas rail assembly (7) and an engine (13) are sequentially connected to form a CNG fuel supply unit; the ECU (12) is respectively connected with seven sensors and four execution units to achieve control. By means of the automotive CNG and gasoline double-fuel supply system based on simultaneous control by the single ECU, the good dynamic property, economical efficiency of fuel, the environmental protection property of discharge, and safe reliability of control can be obtained, and the system is applicable to automotive double-fuel supply systems.

Description

Technical field [0001] The invention involves the automotive fuel supply system, and specially involves a car CNG and gasoline dual fuel supply system based on single ECUs. Background technique [0002] In the 21st century, humans faced the crisis of energy shortage and environmental pollution.With the surge in the number of cars and the consumption of oil resources around the world, the contradiction between supply and demand of oil is increasing.In order to fundamentally solve the problem, comprehensive management is required; the use of substitute fuel is an effective method. The application of natural gas as a car for automobiles is one of the topics of the current research. [0003] In order to fundamentally solve the problem of energy shortage and environmental pollution, the fuel supply system scheme of gasoline and natural gas dual fuel engines was proposed, and the parallel use of gasoline fuel supply and natural gas fuel supply was realized. [0004] At present, most of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D19/06
CPCY02T10/30
Inventor 王和平余俊法
Owner 武汉菱电汽车电控系统股份有限公司
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