TERM – 1ST TERM
WEEK NINE
Class: Senior Secondary School 3
Age: 17 years
Duration: 40 minutes of 5 periods each
Date:
Subject: AUTO MECHANICAL
Topic: TRANSMISSION SYSTEM COMPONENTS
SPECIFIC OBJECTIVES: At the end of the lesson, pupils should be able to
I.) Define the transmission system
II.) Identify the components of the transmission system
INSTRUCTIONAL TECHNIQUES: Identification, explanation, questions and answers, demonstration, videos from source
INSTRUCTIONAL MATERIALS: Videos, loud speaker, textbook, pictures,
INSTRUCTIONAL PROCEDURES
PERIOD 1-2
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PRESENTATION
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TEACHER’S ACTIVITY
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STUDENT’S
ACTIVITY
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STEP 1
INTRODUCTION
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The teacher explains the meaning of a transmission system
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Students listens attentively to the teacher
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STEP 2
EXPLANATION
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Teacher identify and describe the components of a transmission system
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Students exhibit attentiveness and active engagement
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STEP 3
NOTE TAKING
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The teacher writes a summarized
note on the board
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The students
copy the note in
their books
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NOTE
TRANSMISSION SYSTEM COMPONENTS
The transmission system, also known as the gearbox, is a crucial component in a vehicle that transfers power from the engine to the wheels, allowing the vehicle to change speed and direction.
It consists of several components working together to achieve this:
- Transmission: The transmission itself is the main component of the system. It contains gears and gear trains that engage and disengage to change the speed ratio between the engine and the wheels. In manual transmissions, the driver selects the gear manually using a gear stick, while automatic transmissions use a hydraulic or electronic system to shift gears automatically.
- Clutch: In manual transmissions, the clutch is used to connect and disconnect the engine from the transmission. When the clutch pedal is pressed, the clutch disengages, allowing the driver to change gears without stalling the engine. Releasing the clutch pedal engages the clutch, transferring power from the engine to the transmission.
- Torque Converter: In automatic transmissions, the torque converter serves a similar function to the clutch in manual transmissions. It transfers power from the engine to the transmission using fluid coupling, allowing the engine to continue running while the vehicle is stationary or moving at low speeds.
- Gear Selector: This is the mechanism used to select gears in both manual and automatic transmissions. In manual transmissions, it is typically a gear stick located between the front seats. In automatic transmissions, it may be a lever or buttons located on the steering column or center console.
- Shift Linkage: The shift linkage is a series of rods or cables that connect the gear selector to the transmission. It translates the driver's input into movement of the transmission's internal components, allowing the selection of different gears.
- Transmission Fluid: Transmission fluid is used to lubricate and cool the moving parts inside the transmission. It also helps transmit power and provides hydraulic pressure to engage and disengage gears in automatic transmissions.
- Valve Body: In automatic transmissions, the valve body is a hydraulic control unit that directs transmission fluid to various components inside the transmission. It contains valves, solenoids, and sensors that regulate fluid flow and control gear shifts.
EVALUATION: 1. What is a transmission system?
- Identify 5 components of the transmission system
CLASSWORK: As in evaluation
CONCLUSION: The teacher commends the students positively
