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VEHICLE DYNAMICS

VEHICLE DYNAMICS

This project was performed as part of the coursework meeting certain industry standard requirements.

BRAKE DIAGRAM:

  1. Front application pressure is the reference. The rear pressure is limited by using the proportioning valve. The proportioning ratio is mentioned in the figure.
  2. Front and rear brake forces are computed
  3. Deceleration is then calculated knowing the total weight of the vehicle (in terms of g)
  4. Front and rear axle loads are then calculated
  5. Braking co-efficients and braking efficiency are accordingly computed and graphed

2 ITERATIONS ARE PERFORMED to satisfy

  • FMVSS 105 second effectiveness
  • FMVSS 105 third effectiveness

All figures are created on MATLAB.

Kindly contact for detailed analysis and MATLAB codes:

Iteration 01:

brakediagram-iteration01

Sanjiv Valsan-Brakediagram-iteration 01

 

 

 

 

 

 

 

 

 

 

brakingcoefficient-iteration01

Sanjiv Valsan-brakingcoefficient-iteration 01

 

decelerationcurve-iteration01

Sanjiv Valsan-decelerationcurve-iteration 01

 

efficiencycurve-iteration01

Sanjiv Valsan-efficiencycurve-iteration 01

 

Iteration 02:

brakediagram-iteration02

Sanjiv Valsan-brakediagram-iteration 02

 

brakingcoefficeint-iteration02

Sanjiv Valsan-brakingcoefficient-iteration 02

 

decelerationcurve-iteration02

Sanjiv Valsan-decelerationcurve-iteration 02

 

efficiencycurve-iteration02

Sanjiv Valsan-efficiencycurve-iteration 02

 

Depending on the road condition, the proportioning ratio can be changed for different brake diagrams. Accordingly front and rear brake pressure varies and braking occurs. Both the iterations are graphed against each other as well.

Comparison iteration 01 vs iteration 02:

efficiency-fullyloadedcase

Sanjiv Valsan-Fullyloadedcase-iteration 01 vs iteration 02

 

efficiency-lightlyloaded

Sanjiv Valsan-lightlyloadedcase-iteration 01 vs iteration 02