Group 16 - Barbie™ Kawasaki® KFX® Power Wheels

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Barbie Kawasaki KFX

Introduction

For the Fall 2010 semester of MAE 277, Group 16 will be heading the reverse engineering process of a BarbieTM Kawasaki® KFX® Power Wheels children’s ATV. Our group consists of 5 members, and together, as a team, we will completely disassemble our product in a manner such that we can analyze each component and part from an engineering standpoint. At which time we will reassemble our product, returning it to its original state, having completed a full engineering analysis.

Executive Summary

not finished yet

The product analyzed in this report is the BarbieTM Kawasaki® KFX® Power Wheels children’s ATV manufactured by Fisher-Price and is sold to children ages 3 to 6. The product has a maximum weight capacity of 65 lbs and is powered by a 12V battery.
The main function of the product is to provide transportation and entertainment for the user. The function of transportation is done by forward/backwards translational motion and the direction of this motion is controlled by the user inputting human energy to the steering column. Forward/backward motion is carried out by two 19T pinion motors attached to gearboxes in the rear of the vehicle which function together to spin the rear wheels. When the accelerator pedal is pressed, the 12V battery provides electrical energy to the 19T pinion motors which use that electrical energy to create a magnetic field inside the 19T pinion motors by sending current through the coil of wires inside the motor. This magnetic field spins a magnetic rod inside the motor creating rotational energy. The 19T pinion gear is connected to this rod which uses the energy to spin the gears in the gearbox. The rotational energy is transmitted through the gearbox and into the wheel driver which is attached to the gearbox and the rear wheels. The wheel driver transmits the rotational energy it received to the wheels thus causing the wheels to rotate, thus creating forward/backwards motion. The direction of forward motion or backwards motion is controlled by the forward/reverse switch located at the front of the product. The direction of the vehicle is controlled by the user. The user inputs human energy to the steering handle that is converted to rotational energy. The energy is transmitted to the steering linkage which transmits the rotational energy to the wheels causing them to turn allowing the user to turn the vehicle left or right.