Simulink Modeling for F1 Car Start from Standstill

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SUMMARY

The forum discussion centers on simulating the start of an F1 car from a standstill using Simulink. The user employs a torque curve and a lookup table to calculate torque based on engine RPM, which is set at 11,000 RPM at the start. The gear shifting logic is designed to shift at 19,000 RPM, but the user encounters an issue where the engine RPM curve incorrectly rises from 0 to 19,000 RPM instead of starting at 11,000 RPM. The user seeks guidance on correcting this RPM curve in their model.

PREREQUISITES
  • Understanding of Simulink modeling techniques
  • Familiarity with engine torque curves and lookup tables
  • Knowledge of gear shifting logic in automotive simulations
  • Basic principles of RPM calculations and back calculations
NEXT STEPS
  • Research how to correctly implement initial conditions in Simulink models
  • Learn about using Simulink's Stateflow for managing gear shifting logic
  • Explore advanced techniques for modeling engine RPM curves in Simulink
  • Investigate methods for debugging and validating Simulink simulations
USEFUL FOR

Automotive engineers, simulation developers, and students interested in vehicle dynamics and control systems will benefit from this discussion.

ashwindg
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Hi guys,
Im a newbie to this site... I have been wrking on a simulink model of a F1 car for a few days.I wanted to simulate the start of a F1 car from standstill.. I used the following basic concepts:
1) The engine is revved at say around 11000 .rpm
2)So when the lights go off, I engage the gears and my throttle is floored...
3) I use a torque curve from which I get the torque using 'lookup table'. The RPM for the engine lookup table is back calculated fro wheel speed.
4) This torque is then multiplied in the transmission and finally delivered to the wheels.
5) My gear shifting logic shifts at 19000 Rpm from 1 to 7... This RPm is determine by back calculating the Wheel speed(wheel speed x gear ratio).. So when this value reaches 19000, the gear shifts...
6) The simulation kind of works but my engine RPM curve is not correct.
Since I feed my wheel RPM back to the engine, my engine rpm curve shows RPM rising from 0 t0 19000. But this is wrong because I am revving my engine at 11000 RPM. So it should start from 11000 right?
Im kind of stuck with this. Dont know how to do it rit...
Hope my explanation is understandable...
Would appreciate any tips and guidance on this.. Thanks a lot in advance...
 
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