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