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# Solar Car Engineering - PowerPoint PPT Presentation

Solar Car Engineering. How do you build a solar car?. Outline. Solar Panels 101 Chasis and Drivetrain Traction Wheels Gears. Solar Panels 101. http://videos.howstuffworks.com/hsw/6195-energy-sol ar-energy-video.htm. Chasis and Drivetrain. General Construction.

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Presentation Transcript

### Solar Car Engineering

How do you build a solar car?

• Solar Panels 101

• Chasis and Drivetrain

• Traction

• Wheels

• Gears

http://videos.howstuffworks.com/hsw/6195-energy-solar-energy-video.htm

### Chasis and Drivetrain

• Use a low center of gravity

• Remember…KISS

Support Base

-Which design do you think is more stable?

A

B

Support Base

-Which design do you think is more stable?

A

B

• 4WD

• 2WD

• Tank Drive

• 4WD

• 2WD

• Tank Drive

Which tire has more traction?

A

B

Which tire has more traction?

A

B

### Torque

Rotational force around an axis

Larger distance from axis equates to a larger torque

Can be translated into linear movement

How does this apply to your car?

Linear Movement

Rotational to Linear

### Introduction to Gears

• Gears are used to change the speed and power of your wheels from the motors

• Higher gear ratios make your robot go faster, but with less power

• Lower gear ratios make your robot slower, but with more power

Sample Problem

Problem One

Problem Two

What happens to the direction of motion of the gears in this picture?

Idler Gear

Reverse Direction gears?

idler gear

Checkpoint Questions gears?

• The wider and shorter your base, the __a__ likely it is to tip over

• The more wheels you drive with the __b___, the __c__ traction you have

• Lower gear ratios result in more __d__ and __e__ speed

• Higher gear ratios result in less __f__, but less __g__