Mind Map

Drivetrains

Centre of Gravity (CoG)

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Rear-Wheel Drive

Shifting Center of Gravity

Robot's Geometry/Shape

Identifying Center of Gravity

Counterweights

Weight Distribution

Low Center of Gravity

Traction

Bigger Wheels --> Bigger surface area

Wheels - rubber or something sticky

Drive in tracks cleared by other vehicles

Hybrid and Electric

Four-Wheel Drive

Two-Wheel Drive

Front-Wheel Drive

Types of 4WD

Part-Time 4WD

Full-Time 4WD

Components lower on the chassis/frame

Center of gravity closer to the ground

Types of RWD

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Gearing

Proper alignment is important

Low gear ratio --> faster, less power

Gears can change the direction the wheels are turning

more gears --> more energy wasted

Gears can be like an extension for the motor

Gearing can distribute power

Place heavier components in the centre of the robot

Distribute remaining components

Determine location of component's mass and distance from a reference point

Multiply component's mass by its distance from the reference point, sum the results.Divide the sum by the total mass of the robot.

Shift CoG horizontally: adjust the position of components within the robot.

Shift CoG vertically: modify the height of components or the robot's overall structure.

Counterweights can adjust the robot's CoG for better stability and balance.

Wider and longer chassis/frame --> more stable CoG.

The shape and configuration of a robot's chassis can impact its CoG.

Mid Engine RWD

Front Engine RWD

Rear Engine RWD

Types of Hybrid and Electric

All-Electric

Parallel Hybrid

Plug-in Hybrid Electric

Series Hybrid

Meaning of Drivetrains

Drivetrains are mechanical systems in vehicles that transfer power from the engine to the wheels. They include components like the transmission, driveshaft, differential, and axles, determining factors like traction and performance.

Rear wheel vehicle --> put more weight on the back of the vehicle.

They have to mesh together

High gear ratio --> more power, slower

Bigger surface area --> More traction

More Wheels --> Bigger surface area

Attach rubber bands or tape

Bigger surface area --> More traction