Design of EFL Control System for 950 Motorcycle Based on MCU

2012 ◽  
Vol 472-475 ◽  
pp. 2998-3001
Author(s):  
Chao Wu ◽  
Mai Dun Shao ◽  
Dong Bin Ai
Keyword(s):  
Control System ◽  
Energy Conservation ◽  
Emission Reduction ◽  
Fuel Injection ◽  
Low Cost ◽  
Control Unit ◽  
Large Displacement ◽  
Gasoline Engines ◽  
Idle Speed ◽  
Driver Circuit

With requirements to air quality for human’s living, energy conservation and emission reduction, motorcycle emission in our country is in strict accordance with Euro III standard, while use of EFI (Electronic Fuel Injection) control system is one of the main measures to achieve the emission requirements. In this paper, 51-series MCU is applied as the core control unit for EFI control system of 950 (ml) large displacement motorcycles, which improves the dynamics and fuel economy of 950 (ml) gasoline engines. Hardware and software designs are proposed. Hardware design covers input signal processing circuit and driver circuit for EFL and software design analyzes the software control strategy in four aspects: engine work modes, fuel injection, ignition and idle speed control. The design in this paper has advantages of low cost and optimal control system performance. It not only fulfills the requirement of energy conservation and emission reduction, but also improves the performance of control system. Simulations carried out are presented to demonstrate that air-fuel ratio is controlled around ideal value, which is of great significance to large displacement motorcycle industry.

Research on the Control System of Sorting Machine for IC Chips Based on AVR Microcontroller

2011 ◽  
Vol 211-212 ◽  
pp. 540-544
Author(s):  
Jia Wen Hu ◽  
Xi Qiu Fan
Keyword(s):  
Control System ◽  
Integrated Circuits ◽  
High Reliability ◽  
Low Cost ◽  
Control Unit ◽  
Power Module ◽  
Special Equipment ◽  
Human Interface ◽  
Sorting Machine ◽  
Electro Magnetic

IC- (Integrated circuits) sorting machine is a kind of special equipment used for testing, classifying and grading IC chips, which is of significances in IC industry. Traditionally, IC- sorting machine is controlled by industry personal computer (IPC), which bears disadvantages such as large size and high cost. By contrast, the control system for IC-sorting machines presented in this paper is based on micro control unit (MCU), which is of relatively high reliability as well as high stability but low cost. First, we gave an outline of the configuration and operation principle of the sorting machine. Second, the input and output (I/O) signals that should be controlled were classified. Last but not least, the control strategy was presented both from the hardware side and the software side. In terms of the hardware design, touch screen was adopted as the human interface device (HID) for the sake of convenience, and isolated power module as well as optical isolated module were applied to improve the anti- electro magnetic interference (EMI) performance; In terms of software design, mechanisms such as multi-task by-turn and timer interrupt delay were adopted to improve the operation efficiency.

scholarly journals Computerized diagnostic for the fuel injection control system

2008 ◽  
Vol 132 (1) ◽  
pp. 25-31
Author(s):  
Mieczysław DZIUBIŃSKI ◽  
Stanisław WALUSIAK ◽  
Wiktor PIETRZYK
Keyword(s):  
Control System ◽  
Fuel Injection ◽  
Combustion Engine ◽  
Experimental Tests ◽  
Control Device ◽  
Position Sensor ◽  
Electronic Control Device ◽  
Idle Speed ◽  
Speed Sensor ◽  
Propulsion Unit

The purpose of the study is to carry out the experimental tests for the propulsion unit of the selected passenger car i.e. Skoda Felicia 1.3 MPI provided with Simos 2P system (manufactured by Siemens). The tests were carried out by means of an appropriate measuring equipment, among others AOC1K oscilloscope (digital recorder integrated with PC by means of RS232 interface) and a personal computer. The measurements of signals on the contacts of the electronic control device encompass the measuring procedures for individual signals, in accordance with the contact symbols: the camshaft position sensor, the engine speed sensor, the lambda probe, the pressure sensor, the throttle position sensor, the idle speed control actuator, the knock sensor. In some cases it is impossible to confirm the standard codes by the execution of diagnostic tests of the modern control system of ZI combustion engine, using the Simos 2P system.

scholarly journals Assessment of Hydrological Inspection using Development Low-Cost Boat Application in University Sultan Zainal Abidin (UniSZA) Lake, Terengganu, Malaysia

2019 ◽  
Vol 8 (2S3) ◽  
pp. 205-212
Keyword(s):  
Control System ◽  
Low Cost ◽  
Control Unit ◽  
Cost Effective ◽  
Unmanned Vehicles ◽  
Range Finder ◽  
Hydrographic Survey ◽  
Motor Control System ◽  
Reduce Risk ◽  
Communication Equipment

Unmanned vehicles may provide less time consume and cost-effective methods of gathering hydrographic survey data compared to traditional, manned survey vessels. A remote-controlled Unmanned Surface Vehicle (USV) was outfitted with range finder, depth transducer, and velocity current meter for the purpose of conducting a hydro survey. The purpose of study to describes a project for the development of Unmanned Survey Vessel (USV) platform useful for hydrological survey. The control unit includes a motor control system, communication equipment, and a simple radio control system installed to enables an operator to remotely control the boat. The motor radio control system, the measurement equipment (sonar depth, current meter, range finder) used in data collecting activities. The result showed the validation values of Hydro Survey Boat Version 1 and Hydro Survey Boat Version 2, the estimated validation of river discharge (Q) recorded 0.0373 m3/s. The significant differences of Q between Hydro Survey Boat Version 1 as 0.0853 m3/s (56.3%) and Hydro Survey Boat Version 2 as 0.042 m3/s (11.2%) which is the Hydro Survey Boat Version 2 recorded more accurate readings compared Hydro Survey Boat Version 1. There are several advantages of this project which is reducing cost, improve efficiency, and reduce risk during hydrology survey. The development survey boat USV is innovation technology and it will improved the hydrological method

Research on Fitting Method for Flow Characteristics of Small Injection Pulse Width of Injector

2013 ◽  
Vol 448-453 ◽  
pp. 3421-3425
Author(s):  
Tie Zao Yang ◽  
Hai Bo Xue ◽  
Chang Sheng Wang ◽  
Xin Yang Wang ◽  
Lei Yuan
Keyword(s):  
Pulse Width ◽  
Fuel Injection ◽  
Electronic Control Unit ◽  
Flow Characteristics ◽  
Control Unit ◽  
Electronic Control ◽  
Single Chip ◽  
Idle Speed ◽  
Injection Quantity ◽  
Injection Pulse

Due to the fact that it is generally difficult to accurately calculate the nonlinear section of flow characteristics curve of small injection pulse width of electronic control injector, it is impossible for electronic control unit (ECU) to accurately control fuel injection quantity when the small engine such as motorcycle is under a working condition of idle speed or small load. This paper introduces the principle and method to make a fitting for flow characteristics of nonlinear section in the developed software system in details. Take the electronic control injector of motorcycle as an example, the programming method combined with LabVIEW and MATLAB is utilized to make a fitting treatment for accurate fuel injection quantity obtained via measuring single-chip microcomputer through Smoothing Spline method, so as to obtain the flow characteristics of small injection pulse width and normal injection pulse width of electronic control injector of motorcycle.

Research and Application of Automation Controlling System for Plate Ultra Fast Cooling Process

2012 ◽  
Vol 605-607 ◽  
pp. 1836-1840
Author(s):  
Xiao Lin Chen ◽  
Bing Xing Wang ◽  
Yong Tian ◽  
Guo Yuan ◽  
Zhao Dong Wang ◽  
...  
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Automatic Control System ◽  
Cooling System ◽  
Low Cost ◽  
Control Process ◽  
Control Unit ◽  
Controlled Cooling ◽  
Ultra Fast Cooling ◽  
Fast Cooling

To implement the new generation thermo mechanical control process (NG-TMCP), the automatic control system of ultra fast cooling (UFC) was developed by combined with the renovation project of controlled cooling system in one plate production line. This system was composed of basic automation subsystem and process automation subsystem. As the main control unit of the basic automatic control system, a S7400 PLC system is used to control the UFC device and to achieve the chain control between the UFC system and the mill system. While the process control system is to realize the automatical setting of the cooling schedule by the developed finite element temperature field model and the temperature homogeneity model. The industry application shows that the NG-TMCP which is based on the UFC can reduce the alloy content effectively and implement the low-cost reduction produce of high-grade products.

Development and Validation of a Control-Oriented Model of a Spark-Ignition Direct-Injection Engine

2003 ◽  
Author(s):  
Byungho Lee ◽  
Yann Guezennec ◽  
Giorgio Rizzoni ◽  
Doug Trombley
Keyword(s):  
Control System ◽  
System Design ◽  
Gasoline Engine ◽  
Fuel Injection ◽  
Direct Injection ◽  
Spark Ignition ◽  
Control System Design ◽  
Gasoline Engines ◽  
Engine Model ◽  
Development And Validation

Due to the increasing demands on improved fuel economy and stringent government regulations on tailpipe emissions, many automotive industries and research institutes have been looking for alternative solutions, such as diesel engines, hybrid-electric vehicles, and fuel cell technologies, over conventional port fuel injection (PFI) gasoline engines to meet the demands. On the other hand, many people in the automotive community also realize that there are still a lot of room for improvements in gasoline engine technologies, such as utilizing direct injection and/or variable valve actuation. In order to fully realize the potential benefits of such advanced technologies in gasoline engines, a well-coordinated complex control system design is essential. This paper describes the development and validation of a control-oriented mean-value model for a spark-ignition direct-injection (SIDI) engine to assist and accelerate such coordinated control system design and calibration processes via use of an engine model. The performance and accuracy of the dynamic engine model are evaluated and validated against a set of data for an engine running on a transient driving cycle.

The Effect of Fuel/Air Mixing on Actuation Authority in an Active Combustion Instability Control System

2000 ◽  
Vol 123 (3) ◽  
pp. 537-542 ◽  
Author(s):  
J. M. Cohen ◽  
J. H. Stufflebeam ◽  
W. Proscia
Keyword(s):  
Control System ◽  
Fuel Injection ◽  
Low Cost ◽  
Combustion Instability ◽  
Diagnostic Techniques ◽  
Spatial Uniformity ◽  
Air Mixing ◽  
Control Authority ◽  
Instability Control ◽  
Combustion Tests

The authority of an active combustion instability control system was improved by increasing the degree of mixing between a modulated gaseous fuel source and the remainder of the premixed reactants in a low-emissions combustor. Nonreacting acetone PLIF measurements were used to assess the mixedness of various fuel injection configurations, in both time-averaged and phase-locked modes. These configurations were also evaluated in combustion tests in which the authority of the actuator and the ability of the control system to attenuate the instability were measured. The results indicated that both control authority and emissions performance are tied directly to the ability to achieve temporal control over the spatially averaged fuel/air ratio leaving the premixer at any point in time while simultaneously maintaining the high spatial uniformity of this mixture. The cold-flow diagnostic techniques were proven to be an effective and low-cost method for screening fuel injection concepts.

The Effect of Fuel/Air Mixing on Actuation Authority in an Active Combustion Instability Control System

2000 ◽  
Author(s):  
Jeffrey M. Cohen ◽  
John H. Stufflebeam ◽  
William Proscia
Keyword(s):  
Control System ◽  
Fuel Injection ◽  
Low Cost ◽  
Combustion Instability ◽  
Diagnostic Techniques ◽  
Spatial Uniformity ◽  
Air Mixing ◽  
Control Authority ◽  
Instability Control ◽  
Combustion Tests

The authority of an active combustion instability control system was improved by increasing the degree of mixing between a modulated gaseous fuel source and the remainder of the premixed reactants in a low-emissions combustor. Non-reacting acetone PLIF measurements were used to assess the mixedness of various fuel injection configurations, in both time-averaged and phase-locked modes. These configurations were also evaluated in combustion tests in which the authority of the actuator and the ability of the control system to attenuate the instability were measured. The results indicated that both control authority and emissions performance are tied directly to the ability to achieve temporal control over the spatially-averaged fuel/air ratio leaving the premixer at any point in time while simultaneously maintaining the high spatial uniformity of this mixture. The cold-flow diagnostic techniques were proven to be an effective and low-cost method for screening fuel injection concepts.

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