Page 374 - The Ontario Curriculum, Grades 11 and 12: Technological Education, 2009 (revised)

A. TRANSPORTATION TECHNOLOGY FUNDAMENTALS
OVERALL EXPECTATIONS
By the end of this course, students will:
A1. demonstrate an understanding of the operation of engine management systems;
A2. demonstrate an understanding of the principles of operation of power transfer devices;
A3. demonstrate an understanding of troubleshooting techniques used to diagnose problems in powertrain systems;
A4. assess the effect of modifying a vehicle, aircraft, or watercraft;
A5. demonstrate accurate and appropriate use of technical and mathematical knowledge and skills in the study of transportation technology.
SPECIFIC EXPECTATIONS
By the end of this course, students will:
A1.1 measure and explain the correlations among voltmeter, ammeter, and ohmmeter measure- ments of an electric or electronic circuit (e.g., effect of resistance on voltage, relationship of resistance to voltage drop);
A1.2 identify and describe sensors, actuators, transducers, and control devices commonly used in engine management systems;
A1.3 explain the principles of operation of various engine management systems (e.g., emission con- trol, multiplexing, fuel delivery management, igni- tion timing management) and describe how these systems are interrelated;
A1.4 explain how environmentally harmful gases are produced through combustion and how the engine management systems control the level of emissions in the exhaust gas (e.g., through after-treatment of exhaust gases, exhaust gas recirculation, vapour recovery, positive crankcase ventilation, variable valve timing);
A1.5 explain how engine management systems may be affected by lubrication and coolant sys- tems requiring maintenance (e.g., a thermostat stuck open will cause the engine to run below opti- mal operating temperature, causing excessive fuel consumption).
By the end of this course, students will:
A2.1 describe how energy is converted into motion (e.g., chemical to mechanical, chemical to electrical, electrical to mechanical);
A2.2 compare the torque and power characteris- tics of various power sources (e.g., two-stroke, four-stroke, gasoline, diesel, electric, fuel cell, hybrid, turboprop, jet);
A2.3 evaluate the performance of various power sources (e.g., in terms of transmission output, hydraulic efficiency, volumetric efficiency, horse- power, torque);
A2.4 identify and trace the flow of power through the major components of a drivetrain (e.g., transmission to axle, outboard drive, snowmobile drive, hydrostatic drive);
A2.5 describe power flow, gear ratios, and torque multiplication in common mechanical drive systems (e.g., belt, chain, and gear drive systems; variable speed pulleys; planetary gear sets; clutch drives).
A3. Troubleshooting the Powertrain
By the end of this course, students will:
A3.1 systematically troubleshoot problems in vehicles or craft by using appropriate diagnostic
TRANSPORTATION TECHNOLOGY FUNDAMENTALS
A1. Understanding Engine Management Systems
A2. Understanding Power Transfer Devices
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Transportation Technology
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