Improved engine control method controlled by multiple working conditions PID (proportion integration differentiation)

A control method and engine technology, applied in engine control, machine/engine, electrical control, etc., to reduce deviation error, reduce complexity, and facilitate implementation

Inactive Publication Date: 2014-01-01
NANTONG TAIYING NEW MATERIAL SCI & TECH CO LTD
View PDF5 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] As people have higher and higher requirements on the performance of automobiles, especially the engine exhaust emissions and fuel economy, the control strategy of the engine's air-fuel ratio has put forward higher requirements, especially because the commonly used ternary The catalytic converter has the best purification effect only in a narrow range where the air-fuel ratio of the mixture is close to the theoretical air-fuel ratio. Therefore, in this case, the electronic control unit must control the air-fuel ratio of the mixture to be closer to the theoretical air-fuel ratio. To achieve a better effect, but the traditional engine control method can not meet this high requirement, which requires a new control strategy and method for the air-fuel ratio under different working conditions

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
  • Improved engine control method controlled by multiple working conditions PID (proportion integration differentiation)
  • Improved engine control method controlled by multiple working conditions PID (proportion integration differentiation)
  • Improved engine control method controlled by multiple working conditions PID (proportion integration differentiation)

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] exist figure 1 The schematic diagram of the main electronic control system of the automobile engine of the present invention is shown in the figure, which shows the main components and components of the engine electronic control system, which mainly includes a control unit 1, an engine body 2, an ignition system 3 located on the engine, providing The intake system 4 of fresh air, and the fuel supply system 5 that supplies fuel to the engine 2, the sensor unit 6 located at each position of the entire engine system provides detection signals to the control unit 1, and the control unit 1 After processing, control instructions are sent to each execution unit. Among them, the control unit 1 is composed of ECU, driver and relay, etc. The ECU collects input information from the air flow meter, intake air temperature, gasoline engine speed, water temperature, throttle position sensor and oxygen sensor, etc. The best fuel injection pulse signal drives the fuel injector through ...

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 discloses an improved engine control method controlled by multiple working conditions PID (proportion integration differentiation). The method can utilize different PID controllers under different working conditions to regulate the air-fuel ratio of the engine under a steady state working condition, and each steady state working condition is monitored to make a judgment, and a plurality of PID controllers are mutually matched for control, so that the engine can be matched with a better air-fuel ratio. The method disclosed by the invention has the advantages that a control strategy theory adopting the PID control in automobile electronic control is enriched, and help is provided for improvement of efficiency of the engine and reduction of energy conservation and emission reduction of automobiles.

Description

technical field [0001] The invention relates to an improved multi-working-condition PID control engine control method, which belongs to the technical field of automotive electronic automation control. Background technique [0002] Electronic automatic control technology is widely used in automobiles, which can realize digital control of the engine. The electronic control system can realize the best air-fuel ratio and ignition control according to various operating conditions of the engine, so that the mixture can be fully burned and the engine can run smoothly. The optimization of working conditions effectively improves the power, economy and emission indicators of automobile engines. At present, the research work on engine control mainly focuses on two aspects, that is, expanding the function of the control system and exploring new control methods. With the development of advanced electronic technology, automobile engine control tends to be integrated. One is to carry out ...

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): F02D41/14
Inventor 段玉波高丙坤刘继承刘斌姜春雷
Owner NANTONG TAIYING NEW MATERIAL SCI & TECH 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