Engine oil gas mixing ECU control method

A technology of oil-gas mixing and control method, which is applied in engine control, electrical control, machine/engine, etc. It can solve problems such as complex software and hardware, achieve the best power performance, improve performance, and reduce harmful gases.

Inactive Publication Date: 2008-01-16
CHINA VAGON AUTOMOTIVES HLDG CO LTD
View PDF0 Cites 39 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the current gasoline and natural gas hybrid controls use two algorithms and two calibration data and are implemented based on multiple hardware platforms. The software and hardware are more complicated to implement, and torque-based control is mostly in the fuel system.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Engine oil gas mixing ECU control method
  • Engine oil gas mixing ECU control method
  • Engine oil gas mixing ECU control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0035] The control principle of the entire electronic control system of this embodiment is shown in FIG. 1 . The system includes an engine electronic control system unit ECU 100 and an internal combustion engine 110. The internal combustion engine 110 includes multiple cylinders, and FIG. 1 shows one cylinder. The engine draws intake air through the intake manifold 120 , and makes it pass through the intake pressure temperature sensor 12 and the throttle body 13 into the combustion chamber. The air provided by the intake manifold and the fuel injector (gasoline or natural petroleum gas) 10 form an air-fuel mixture, sparks are generated by the spark plug to ignite the mixture, and the exhaust gas combusted by the air-fuel mixture is discharged through the exhaust pipe 130 into the air.

[0036] The engine electronic control unit ECU 10...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a controlling method of fuel-air mixture electronic control unit (ECU) of engine. In the controlling method, through acquisition of air inlet temperature and pressure, water temperature, engine rotational speed, throttle position and oxygen sensor signal, the ECU accurately controls the oil (gas) spraying quantity and ignition angle; the oil (gas) spraying adopts multipoint grouping or multipoint sequential technique, and the ECU calculates the actual oil (gas) spraying quantity and actual oil (gas) spraying time with one same algorithm and two sets of rating data in the same hardware platform; the ECU performs closed-loop control to air fuel ratio; the oil (gas) spraying is controlled based on the torque of an electronic air throttle, and ECU acquires the air throttle pedal position signal and calculates the maximal torque at that time to control the opening extent of the air throttle. The controlling method can remarkably improve the performance of engine, obtain the optimal air fuel ratio under various operating conditions, and make the automobile to achieve the optimal dynamic force.

Description

technical field [0001] The invention relates to the field of gasoline / natural gas dual-fuel mixed supply control, in particular to a control method for an engine oil-gas mixed ECU. Background technique [0002] Gasoline / natural gas dual-fuel vehicles can be divided into three categories: open-loop mixed gas supply system, closed-loop mixer gas supply system with electronically controlled power valve, and electronically controlled gas injection according to different gas mixing supply control devices. The differences are mainly reflected in the formation method of the mixed gas, the control method of the mixed gas concentration, and a few components such as single-point air injection control or multi-point sequential air injection control, and other special devices are basically the same. At present, the closed-loop control system of mixed gas mode is generally used in EFI vehicles at home and abroad. The mixed fuel ECU researched and produced by SUNTECH belongs to the type ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): F02D43/00F02D41/14F02D41/26
Inventor 李朝晖
Owner CHINA VAGON AUTOMOTIVES HLDG CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap