Aspects of Functional Optimization and Performance Evaluation Using an Experimental Programmable Engine Control Unit

2016 ◽  
Vol 822 ◽  
pp. 365-372 ◽  
Author(s):  
Ilie Dumitru ◽  
Laurențiu Racilă ◽  
Lucian Matei ◽  
Alexandru Oprica ◽  
Virgil Valeanu
Keyword(s):  
Performance Evaluation ◽  
Power Supply ◽  
Control Unit ◽  
Engine Control Unit ◽  
Sequence Type ◽  
Identification System ◽  
Operating Parameters ◽  
Chassis Dynamometer ◽  
And Performance ◽  
Optimization And Performance

The author’s present concerns about the study opportunities offered by the control unit (which allow experimental programming) related to viewing, adjusting and recording certain engine operating parameters. For a dedicated power supply solution (in which we find an own admission variant of route) functional enhancements the related to the settings type of injection, number of injections, injection time and air mixture – fuel, are proposed. Performance evaluation, approached in a sequence type identification system was done using a testing methodology specific to the chassis dynamometer bench to highlight the targeted optimizations.

Optimization and performance evaluation of the analysis of glyphosate and AMPA in water by HPLC with fluorescence detection

2002 ◽  
Vol 56 (3-4) ◽  
pp. 161-164 ◽  
Author(s):  
B. Le Bot ◽  
K. Colliaux ◽  
D. Pelle ◽  
C. Briens ◽  
R. Seux ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Fluorescence Detection ◽  
And Performance ◽  
Optimization And Performance

Evaluation of Fuel Economy and Emissions Reduction for a Motorcycle With Automatic Idling-Stop Device

2014 ◽  
Vol 136 (2) ◽  
Author(s):  
Chih-Hsien Yu ◽  
Chyuan-Yow Tseng ◽  
Shiunn-Cheng Chuang
Keyword(s):  
Fuel Economy ◽  
Fuel Injection ◽  
Control Unit ◽  
Engine Control Unit ◽  
Emissions Reduction ◽  
Fuel Saving ◽  
Chassis Dynamometer ◽  
Stop And Go ◽  
And Control ◽  
Co Emission

In an attempt to improve the fuel economy and reduce the exhaust emissions of motorcycles, some manufactures have developed commercialized motorcycles equipped with automatic idling-stop and go (AISG) functionality. Even though research efforts devoted to the idling-stop strategy have demonstrated its effectiveness, motorcycles equipped with the AISG device are not popular because the general public still has some concerns about them. This paper aims to evaluate the benefits and feasibility of a commercialized motorcycle with AISG functionality with regard to the public's concerns about fuel economy and emission problems during engine restart transients. In order to verify the accuracy of the analytical results and control for variable driver characteristics, a motorcycle chassis dynamometer was used to recreate the urban driving pattern. Furthermore, the feasibility of fuel-saving and emissions improvement by adjusting fuel-injection signal of the engine control unit (ECU) during engine restart operation was also evaluated. The experimental results showed that the addition of the fuel-injection modulation plus idling-stop strategy can improve the fuel economy rate by up to 12.2% and reduce carbon monoxide (CO) emission by up to 36.95% in comparison with the non-idling stop case.

Kinematics, Workspace Optimization, and Performance Evaluation of a 3-Leg 6-DOF Robot in RRRS Configuration

2020 ◽  
Author(s):  
Nathan A. Jensen ◽  
Carl A. Nelson
Keyword(s):  
Performance Evaluation ◽  
Degrees Of Freedom ◽  
Experimental Validation ◽  
Parallel Manipulators ◽  
Parallel Robot ◽  
Inverse Kinematic ◽  
And Performance ◽  
Workspace Optimization ◽  
Optimization And Performance

Abstract Underactuated parallel manipulators that achieve 6 DOF via multiple controllable degrees of freedom per leg are often pursued and reported due to their large workspaces. This benefit comes at a cost to the manipulator’s performance, however. Such manipulators must then be evaluated in order to characterize their kinematics in terms of position and motion. This paper establishes a pair of inverse kinematic solutions for a previously proposed and prototyped 3-leg, 6-DOF parallel robot. These solutions are then used to define the robot’s workspace with experimental validation and to optimize the robot’s geometry for maximum workspace volume. The linear components of the Jacobian are then defined, allowing for analysis of the manipulability of the robot. The full Jacobian is also defined, and singularities are examined throughout the workspace of the robot.

scholarly journals Optimization and Performance Evaluation of a Transducer for Bone Conduction Implants

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 100448-100457
Author(s):  
Seung Hyun Lee ◽  
Ki Woong Seong ◽  
Kyu-Yup Lee ◽  
Dong Ho Shin
Keyword(s):  
Performance Evaluation ◽  
Bone Conduction ◽  
And Performance ◽  
Optimization And Performance
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