Business Unit has recently concluded a program on Dynamometry and Engine Testing on 10^th August 2017.  The program was a 1-day workshop which focused more on the aspect of Inertial Dynamometers which brought together automotive professionals from Boon Siew Honda Sdn. Bhd. and postgraduate students from the School of Aerospace Engineering, USM.

The program was quite value adding as participants were able to learn & relate the mechanical details and components of dynamometers to their engine performance studies. The result was a diverse group of dyno professionals now equipped with new perspectives in engine dyno design.

The Business Unit in collaboration with Focus Applied Technologies Sdn. Bhd. has recently concluded a 1 day oriented Air/Fuel Ratio measurement & Control (Carburated & EFI Engines) training on 18^th July 2017.  The workshop, delivered by Professor Horizon Gitano Briggs has been attended by community of Perda Tech in light to enrich learning through training and certification to educational institutes/industries inside the field of automotive engineering.

This workshop serves as a comprehensive overview of oxygen sensors as used to measure the AFR in modern engines, the basic AFR control techniques used in both carbureted and fuel injected SI engines.  Overall vehicle target AFR is also explained with respect to vehicle performance, emissions, and engine longevity. The various oxygen sensors (narrow band and wide band) are then covered in depth.  Sample measurements are analyzed to give insight into the engine’s operation. Oxygen sensor control strategies in fuel injected engines are explained in detail. Finally, a number of important limitations and considerations when using oxygen sensors for AFR measurement concluded the presentation.

During the demonstration, the invited participants were able to get their hands on AFR control techniques on LPG fuel injected SI engines. They learn an easier way of tuning an engine by air/fuel ratio using some great technologies from Focus Applied Technologies Sdn. Bhd.

 

 

Upcoming Short Courses/Training: 

10th August 2017 : “DYNAMOMETRY AND ENGINE TESTING”

COURSE SYNOPSIS
This seminar will cover Dynamometry and Engine Testing technologies. Emphasis is on the various kinds of dynamometers, how measurements are made and how this is related with actual usage.

COVERED TOPICS INCLUDE:
Part 1. Dynamometry Bascis
What is Dynamometer?
Why do we need to Dyno test engines?
Dynamometer Designs

Part 2. Measurements
Measurements: Cycle Averaged vs. Crank Angle Resolved
Instrumentation Issues
Testing: Steady State vs. Transient Controllers
Dyno Dynamics
Maintenance

Part 3. Drive Cycles Analysis
Drive Cycles
Determination of testing points
Testing and Weighing of data

Part 4. Dynamometry Case Studies
USA
Philippines
Malaysia
Brochure

 

14th September 2017 : “ENGINE PERFORMANCE TESTING”

COURSE SYNOPSIS
This seminar serves as a comprehensive overview of Motorcycle Engine Performance Tuning. It begins with carbureted AFR tuning, and AFR measurements via wide-band O2 sensors. Compression ratio measurement and calculation is enumerated.

The difference between “fast” and “slow” combustion chambers is covered. Overall power equation is explained with ramifications of each parameter independently. Intake and Exhaust Tuning fundamentals are explained followed by ignition timing and knock. Finally Valve timing and Bulk Motion are explained in terms of their effect on engine power.

COVERED TOPICS INCLUDE:
• AFR control of Carbureted Systems
• Basic Engine Geometry
• Power Equation
• Volumetric Efficiency
• Intake – Exhaust Tuning
• Spark Timing Optimization
• Valve Flows
• Bulk charge motion
Brochure

 

11th October 2017 :  “HYPERMILEAGE” VEHICLE OPTIMIZATION”

COURSE SYNOPSIS
This seminar gives an overview of vehicle dynamics as related to power consumption based on our history of “hypermileage” competition successes. Engine performance data from a wide variety of internal combustion engines, as well as electric motors is presented and matched to the vehicle model to determine the ultimate energy consumption in km/liter of fuel or km/kWh of electrical energy.

Vehicle design parameters are adjusted to stimulate improvements in mass, rolling resistance, size and aerodynamic drag, with resulting implications on fuel efficiency. Various driving techniques, including both cruise and “pulse and glide” are explained and analyzed for efficiency improvements.

COVERED TOPICS INCLUDE:
• Vehicle Dynamics
• Drag Coefficient and Frontal Area
• Rolling Resistance
• Parasitic Losses
• Engine Efficiency: BSFC Map
• Engine Tuning for Efficiency
• Engine Design for Maximized Efficiency
• Overall Vehicle Fuel consumption estimation
Brochure

 

8th November 2017 : “DIESEL ELECTRONIC INJECTION & DIESEL DUAL FUEL SYSTEM”

COURSE SYNOPSIS
This seminar covers Diesel Electronic Fuel Injection systems, and Diesel Dual-Fuel (DDF) systems. Diesel EFI is controlled by three main factors: Injection timing, injection duration and injection pressure. When used as the pilot ignition source in a DDF system, the injection timing must be adjusted carefully to maximize efficiency, while maintaining a reasonable level of “knock”.

COVERED TOPICS INCLUDE:
1) Diesel Injection Basics
* Fuel vaporization, mixing and combustion
* Mechanical Injection vs. Electronically controlled injection
* Pressure and Pulse Width
* Injection timings, performance, knock and soot
* Ignition delay and Premixed combustion
* Single vs. Multiple injections

2) Diesel Dual Fuel systems
* Alternative Fuels, fuel control
* Combustion Analysis of DDF systems
* Injection Timing Effects
* DDF Fuel Costing
* Dangers of over fuelling
Brochure

 

12th December 2017 : “ENGINE MODELING WITH RICARDO’S WAVE”

COURSE SYNOPSIS
“Wave” is an engine simulation software from Ricardo Engineering. It is a 1-dimentional fluid dynamics model in which all gaseous passages are modeled as pipes of various lengths. The model includes a combustion model, a combustion chamber mixing model (for ERG), as well as various thermal conductivity and friction models and emissions models. It does not do a detailed 3-dimensional analysis of gaseous flow, or combustion, but instead uses “lumped parameter” models (such as a 2-zone combustion model). This makes it exceptionally easy to set up, and quick to run. Running various scenarios on a given engine typically takes only a few seconds, where as a 3-D model might take hours or days.

COVERED TOPICS INCLUDE:
• Critical Engine Parameters
• Engine Model Physical Input Data
• Operational input parameters
• Cycle averaged model output
• Instantaneous model output
• Engine Optimization Techniques
• Model to experimental correlation
Brochure

 

(Download courses summary)