The Anti-lock Braking System (ABS) is the most important active safety system for passenger cars. Thanks to force measurement, provided for example by the new SKF Load Sensing Hub Bearing Units, hybrid ABS algorithms can be made simpler and more robust than when only using wheel acceleration measurement. A two-phase algorithm is presented, where the wheel acceleration is controlled in closed-loop and the longitudinal force measurement is used to fire phase switching. Realistic simulations shows that this simple algorithm can handle changes in vehicle velocity and tire-road friction without extra logic or adaptation of the controller parameters. Finally the algorithm is validated on a tyre-in-the-loop experimental facility.
Two-phase Anti-lock Braking System using Force Measurement
CORNO, MATTEO;
2010-01-01
Abstract
The Anti-lock Braking System (ABS) is the most important active safety system for passenger cars. Thanks to force measurement, provided for example by the new SKF Load Sensing Hub Bearing Units, hybrid ABS algorithms can be made simpler and more robust than when only using wheel acceleration measurement. A two-phase algorithm is presented, where the wheel acceleration is controlled in closed-loop and the longitudinal force measurement is used to fire phase switching. Realistic simulations shows that this simple algorithm can handle changes in vehicle velocity and tire-road friction without extra logic or adaptation of the controller parameters. Finally the algorithm is validated on a tyre-in-the-loop experimental facility.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.