Project 02 / Vehicle dynamics / 2026 / Connected Fleets (MMS210)

Keeping a fire truck upright

Real driving data + a digital twin → 60 % less body roll.

↑ Lateral load transfer before vs after tuning

↑ The 1-DOF roll-plane model in Simulink

↑ The data logger in the test car — we logged with a passenger car because the fire service couldn't share fire-truck data

Roll simulator / try it

Roll now 0.00°

0 s— 4° limit6 s

Natural frequency 0.93 HzDamping ratio 0.25

Input: lane change at +3 m/s² for 1 s, then a steady 2.5 m/s² turn.

Spec sheet

Fire trucks are heavy with a high centre of gravity; sharp emergency manoeuvres cause body roll and rollover risk.

01Team of four. Logged real urban driving in Gothenburg with an in-cabin logger (accelerometer 50 Hz, GPS 1 Hz).
02Filtered lateral acceleration in Python, built a 1-DOF roll-plane model in MATLAB/Simulink.
03Tuned the suspension analytically instead of by guessing.

Peak roll

4.7→0.0°

Body roll

0 %

Natural freq.

0.93→0.00 Hz

Damping ratio

0.25→0.00

Spring stiffness

254→0 kN/m