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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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Solar car engineering

Solar Car Engineering

How do you build a solar car?


Outline
Outline

  • Solar Panels 101

  • Chasis and Drivetrain

  • Traction

  • Wheels

  • Gears


Solar panels 101
Solar Panels 101

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



General construction
General Construction

  • Use a low center of gravity

  • Make your robot durable

  • Remember…KISS


General construction1
General Construction

Support Base

-Which design do you think is more stable?

A

B


General construction2
General Construction

Support Base

-Which design do you think is more stable?

A

B


Types of drivetrain
Types of Drivetrain

  • 4WD

  • 2WD

  • Tank Drive


Types of drivetrain1
Types of Drivetrain

  • 4WD

  • 2WD

  • Tank Drive


Traction
Traction

Which tire has more traction?

A

B


Traction1
Traction

Which tire has more traction?

A

B




What is torque
What is 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?


Movement
Movement

Linear Movement

Rotational to Linear




Gears
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


Gear ratios
Gear Ratios

Sample Problem


Gear ratios1
Gear Ratios

Problem One


Gear ratios2
Gear Ratios

Problem One Answers


Gear ratios3
Gear Ratios

Problem Two


Gear ratios4
Gear Ratios

Problem Two Answers


Idler gears
Idler Gears

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

Idler Gear



Reverse direction
Reverse Direction gears?

idler gear


Checkpoint questions
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__



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