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Influence of Semi-Active Suspension Characteristics on the Driving Comfort

Pečeliūnas Robertas

Advances in Science and Technology. Research Journal

2020

Vol. 14, no 1

18--25

The article analyzes the influence of modern-day vehicle suspension characteristics on the passenger’s comfort sensation. The cars with air suspension were selected for the experiments and the suspension was equipped with mode selection options – “Comfort” and “Sport” . A sinusoidal manoeuvre was ensured with a steering wheel rotation robot. The experimental tests were carried out by changing car suspension modes and wheel sizes. The experiments and data processing were carried out in accordance with the provisions of the ISO 2631–1 international standard. In the experimental test, the longitudinal and lateral acceleration projections captured by the sensor and roll rate of the vehicle were set to provide the most comfortable adjustment of the car suspension mode. After filtering the measured vertical acceleration values, the comfort sensation was expressed as the root mean square (RMS) of vibration acceleration value. After evaluating the passenger’s sense of comfort, a summary of the effect of the car suspension-driving mode was provided.