BASIC CONTROL CIRCUITS



Alternative Fuels WVEIS Code 1621

This course will introduce students to basic electrical and automotive fundamentals related an electric vehicle including the math calculations required.

Standard 1: Demonstrate electrical safety. (1621.S.1)

Electrical Safety Objectives

Students will:

1621.1.1 Describe the effect of current on the human body.

1621.1.2 List general safety precautions when working with electricity.

1621.1.3 Identify various types of safety devices used with electricity.

1621.1.4 Describe typical electrical shock hazards in industry, and explain what to do for victims of electrical shock.

1621.1.5 List and describe the safe use of basic hand and power tools used in the field of electricity.

1621.1.6 List and explain personal and electrical safety rules applicable to rotating equipment.

Standard 2: Interpret blueprints, schematics and technical orders. (1621.S.2)

Blueprints, Schematics and Technical Orders Objectives

Students will:

1621.2.1 Demonstrate knowledge of blueprint reading.

1621.2.2 Demonstrate knowledge of schematic reading.

1621.2.3 Draw a block diagram of a motor control system.

1621.2.4 Demonstrate knowledge of elementary wiring diagrams and ladder logic.

1621.2.5 Install motor control centers and systems, using wiring diagrams.

1621.2.6 List and identify motor and motor control symbols.

Standard 3: Apply electrical math concepts. (1621.S.3)

Electrical Math Concepts Objective

Students will:

1621.3.1 Demonstrate knowledge of Ohm’s law and power formulas.

Standard 4: Demonstrate the proper use and care of electrical meters. (1621.S.4)

Electrical Meters Objective

Students will:

1621.4.1 Demonstrate the use and care of an ammeter, ohmmeter, and voltmeter.

Standard 5: Construct and analyze basic circuits. (1621.S.5)

Basic Circuits Objectives

Students will:

1621.5.1 Describe the electrical classification of conductors, insulators, and semi-conductors.

1621.5.2 Describe electrical current and differentiate between the different kinds of current.

1621.5.3 Define voltage, current, resistance, and power.

1621.5.4 List, and schematically represent the components that make up a basic electrical circuit.

1621.5.5 Connect batteries into various series and parallel arrangements and measure and record voltage readings across each configuration.

1621.5.6 Conduct experiments that demonstrate the production of an electromotive force obtaining voltage readings from experiments.

1621.5.7 Construct, solve and troubleshoot series, parallel and complex circuits.

1621.5.8 Perform various battery tests, including: state-of-charge test, capacity (load, high-rate discharge) test, and three (3) minute charge test, and determine needed service.

1621.5.9 Inspect, clean, fill, or replace battery, battery cables, connectors and clamps.

1621.5.10 Slow and fast charge conventional and maintenance free batteries.

Standard 6: Perform basic soldering techniques. (1621.S.6)

Basic Soldering Techniques Objectives

Students will:

1621.6.1 Demonstrate proper use and care for soldering tools and equipment.

1621.6.2 Demonstrate correct stripping, tinning, and soldering procedures.

1621.6.3 Identify characteristics of a good solder connection.

Standard 7: Demonstrate skills applicable to pilot devices. (1621.S.7)

Skills Applicable to Pilot Devices Objectives

Students will:

1621.7.1 Explain purpose and uses of pilot devices.

1621.7.2 Explain and list various types of electronic and mechanical sensors and pilot devices.

1621.7.3 Install and troubleshoot various pilot devices and their circuits.

Standard 8: Demonstrate skills related to motor controls. (1621.S.8)

Skills Related to Motor Controls Objectives

Students will:

1621.8.1 Explain the difference between manual and automatic circuits.

1621.8.2 List the equipment and parts needed for automatic circuits.

1621.8.3 Identify basic motor control circuits.

1621.8.4 Connect basic AC and DC circuits for automatic and manual control.

1621.8.5 Explain and demonstrate basic troubleshooting of control circuits.

1621.8.6 Install reversing circuits.

1621.8.7 Demonstrate the use of a phase rotation meter.

Standard 9: Apply skills to relays. (1621.S.9)

Apply Skills to Relays Objectives

Students will:

1621.9.1 Describe and explain relays and relay circuits.

1621.9.2 Identify and install overload relays in control circuits.

1621.9.3 Identify and install potential-type relays in control circuits.

1621.9.4 Explain the difference between relay and magnetic starters.

1621.9.5 Explain troubleshooting techniques of relay and magnetic starters.

1621.9.6 Check various relays for faults or defects.

1621.9.7 Explain, check, and adjust various types of time delay relays.

Standard 10: Differentiate between the different types of motor braking circuits. (1621.S.10)

Motor Braking Circuits Objectives

Students will:

1621.10.1 Explain the various types of braking circuits for AC and DC motors.

1621.10.2 Describe dynamic braking circuits for AC and DC motors.

Standard 11: Troubleshoot AC and DC motors. (1621.S.11)

AC and DC Motors Objectives

Students will:

1621.11.1 Describe the various types of single-phase and three-phase AC motors and DC motors.

1621.11.2 Install, check, and troubleshoot various types of DC motors in a circuit.

Standard 12: Apply calculations to assure that NEC standards are met. (1621.S.12)

NEC Standards Objectives

Students will:

1621.12.1 Calculate conductor size and ampacity, overcurrent protection, grounding, bonding, and grounded conductor size.

Standard 13: Demonstrate automotive general electrical system diagnosis. (1621.S.13)

Automotive General Electrical System Diagnosis Objectives

Students will:

1621.13.1 Identify automotive electrical symbols.

1621.13.2 Check continuity in electrical circuits with a test light.

1621.13.3 Check applied voltages and voltage drops in electrical circuits with analog and digital voltmeters.

1621.13.4 Check current flow in electrical circuits and components with an ohmmeter.

1621.13.5 Check continuity and resistance in electrical circuits and components with analog and digital ohmmeters.

1621.13.6 Find shorts and grounds in electrical circuits.

1621.13.7 Diagnose the cause(s) of a constant battery drain.

1621.13.8 Inspect, test, and replace fusible links, circuit breakers, and fuses.

Standard 14: Perform hydraulic system diagnosis and repair. (1621.S.14)

Hydraulic System Diagnosis and Repair Objectives

Students will:

1621.14.1 Check master cylinder for internal and external leaks and proper operation, determine needed repairs.

1621.14.2 Diagnose poor stopping, pulling or dragging caused by problems in the hydraulic system, determine needed repairs.

1621.14.3 Inspect brake lines and fittings for leaks, dents, kinks, rust, cracks or wear; tighten loose fittings and supports.

1621.14.4 Fabricate and install brake lines (double flare and ISO types); replace hoses, fittings, and supports as needed.

1621.14.5 Inspect, test, and replace components of brake warning light system.

Standard 15: Demonstrate drum brake diagnosis and repair. (1621.S.15)

Drum Brake Diagnosis and Repair Objectives

Students will:

1621.15.1 Diagnose poor stopping, noise, pulling, grabbing, dragging or pedal pulsation problems, determine needed repairs.

1621.15.2 Remove, clean, and inspect brake drums, shoes, springs, pins, clips, levers, adjusters/self-adjusters, and backing support plates, service, lubricate and reassemble.

1621.15.3 Pre-adjust brake shoes and parking brake before installing brake drums or drum and hub assemblies, and wheel bearings.

Standard 16: Demonstrate disc brake diagnosis and repair. (1621.S.16)

Disc Brake Diagnosis and Repair Objectives

Students will:

1621.16.1 Diagnose poor stopping, noise, pulling, grabbing, dragging, or pedal pulsation caused problems, determine needed repairs.

1621.16.2 Remove caliper assembly and brake pads from mountings; clean and inspect for leaks and damage to caliper housing. Inspect parts for wear, rust, scoring, and damage; replace seal, boot or worn parts. Clean and inspect caliper mounting and slides for wear and damage.

1621.16.3 Clean, inspect, and measure rotor with a dial indicator and a micrometer; follow manufacturer’s recommendations in determining need to machine or replace.

1621.16.4 Reinstall wheel, torque lug nuts, and make final checks and adjustments.

Standard 17: Perform diagnosis and repair of miscellaneous items. (1621.S.17)

Diagnosis and Repair of Miscellaneous Items Objectives

Students will:

1621.17.1 Diagnose wheel bearing noises, wheel shimmy, and vibration problems; determine needed repairs.

1621.17.2 Remove, clean, inspect, re-pack, and reinstall wheel bearings, replace seals, reinstall hub, adjust wheel bearings. Replace bearing and race as needed.

1621.17.3 Check parking brake operation, cables and components for wear, rusting, binding, corrosion and clean, lubricate and replace as needed.

1621.17.4 Check operation of brake stop light system; adjust and service as needed.

Standard 18: Perform diagnosis and adjust wheel alignment. (1621.S.18)

Diagnosis and Adjust Wheel Alignment Objectives

Students will:

1621.18.1 Check and adjust front and rear wheel camber, caster, toe, SAI (steering axis inclination) and determine needed repairs.

1621.18.2 Check rear wheel thrust angle; determine needed repairs.

1621.18.3 Check for front wheel setback; determine needed repairs.

1621.18.4 Check front cradle (sub-frame) alignment; determine needed repairs.

Standard 19: Perform diagnosis and repair of wheels and tires. (1621.S.19)

Diagnosis and Repair of Wheels and Tires Objectives

Students will:

1621.19.1 Inspect tires; check and adjust air pressure. Diagnose tire wear patterns and determine needed repairs. Rotate tires according to manufacturer’s recommendations.

1621.19.2 Measure wheel, tire, axle, and hub run-out; determine needed repairs.

1621.19.3 Dismount, inspect, repair, and remount tire on wheel. Balance wheel and tire assembly (static and dynamic). Reinstall wheel; torque lug nuts.

Standard 20: Perform clutch diagnosis and repair. (1621.S.20)

Clutch Diagnosis and Repair Objectives

Students will:

1621.20.1 Diagnose clutch noise, binding, slippage, pulsation, and chatter problems; determine needed repairs.

1621.20.2 Inspect, adjust or replace clutch pedal linkage, cables, automatic adjuster mechanisms, brackets, bushings, pivots, springs, hydraulic clutch slave and master cylinders, lines, and hoses.

1621.20.3 Inspect, adjust or replace release (throw-out) bearing, lever and pivot, crankshaft pilot bearing or bushing (as applicable), clutch pressure plate assembly and clutch disc.

1621.20.4 Inspect, repair, and service or replace flywheel and ring gear. Measure flywheel-to-block run out and crankshaft end play; determine needed repairs.

1621.20.5 Inspect engine block, clutch (bell) housing, and transmission case mating surfaces; measure clutch (bell) housing bore-to-crankshaft run out and face squareness; determine needed repairs.

Standard 21: Troubleshoot and repair lighting systems. (1621.S.21)

Repair Lighting Systems Objectives

Students will:

1621.21.1 Diagnose brighter than normal, intermittent, dim or no light operation.

1621.21.2 Inspect, replace, and aim headlights and bulbs.

1621.21.3 Inspect and diagnose incorrect turn signal or hazard light operations; repair or replace as needed.

Standard 22: Perform diagnosis and repair of driver information systems. (1621.S.22)

Driver Information Systems Objectives

Students will:

1621.22.1 Diagnose intermittent, high, low, no gauge readings, or no readings on electronic instrument clusters, test sensors, sending units, connectors, and wires of electronic instrument circuits.

1621.22.2 Test gauge circuit voltage regulators (limiters); replace as needed.

1621.22.3 Inspect and test gauges and gauge sending units, connectors, wires, and printed circuit boards of gauge circuits; repair or replace as needed.

1621.22.4 Diagnose incorrect operation of warning devices and other driver information systems.

Standard 23: Perform accessories diagnosis and repair. (1621.S.23)

Accessories Diagnosis and Repair Objectives

Students will:

1621.23.1 Diagnose incorrect wiper operation; diagnose wiper speed control and park problems; repair as needed.

1621.23.2 Diagnose incorrect operation of motor-driven accessory circuits, heated glass operation, electric door and hatch/trunk lock operation and cruise control systems.

1621.23.3 Diagnose supplemental restraint system (SRS) problems; repair as needed. (Note: Follow manufacturer’s safety procedures to prevent accidental deployment.)

1621.23.4 Diagnose radio static and weak, intermittent, or no radio reception.

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