P11001: Balance Training Bike Pedal and Tilt Resistance
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# Engineering Specifications

## Step 1. Prepare the List of Metrics

The table below presents the metrics, or engineering specifications, that will be used by the team to design against.

List of Metrics
Corresponding Need Metric Importance Units
1.1 Tilt Resistance 9 Newtons
1.2 Tilt Resistance Variability 3 Weight of riders(kg)
1.3 Angle of Lockout 1 Tilt degree
2.1 - 2.2 Pedal Resistance 9 Newton meters
3.1 - 3.2 Instruction Sheet Quality 1-3 Time to Confident Use
4.1 Difference Between Actual and Measured Angle on Tilt Sensor 3 Degree
4.2 Display Size 1 Inches
4.3 Battery Life 3 Amp-Hrs
5.1 Counts falls 3 Interger
5.2 Audio feedback 1 Decibel/Binary
5.3 Tilt Angles 3 Quantity
5.4 Reset unit 3 Binary
6.1 Frame Strength 9 Pascal
6.2 Concealed wires 1 Binary
6.3 Display stability 9 Pascal
7.1 Sound 1 Decibel

The metrics, or engineering specifications, that you created in the preceding list should be directly related to the customer needs. In other words, if you have created an engineering specification, it should have some relationship to a need imposed by the customer or the marketplace. Use the table below to map your customer needs against the metrics (or engineering specifications). In many design and product development circles, the rows along the left is often referred to as the voice of the customer, while the columns across the top are often referred to as the voice of the engineer.

## Step 2. Collect Competitive Benchmarking Information

Real Ryder (www.realryder.com)

Real Ryder is an exercise training bike that fits most of the customers needs. The bike tilts left and right, has a decent display, and varying forms of resistance wanted by the customer. The problems with this design is that there isn't a way to lockout the bike from tilting, the step through on the bike is too high for the customers needs, and there isn't a way to vary the tilt resistance.

## Step 3. Set Ideal and Marginally Acceptable Target Values

Engineering Specs - Final