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Identification of tyre characteristics using active force excitation
Vise andre og tillknytning
2016 (engelsk)Inngår i: The Dynamics of Vehicles on Roads and Tracks - Proceedings of the 24th Symposium of the International Association for Vehicle System Dynamics, IAVSD 2015, CRC Press, 2016, s. 501-510Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

Knowledge of the maximum tyre-road friction coefficient can improve active safety systems by defining actuator boundaries and adaptable intervention thresholds. Estimation of the coefficient of friction based on tyre response measurements requires large level of force excitation. Under normal driving conditions, manoeuvres with large tyre utilizations are rare. This study investigates a method where wheel torques with opposite signs are applied to the front and rear axle simultaneously. This procedure allows for an intervention with large tyre excitations without disturbing the motion of the vehicle. The intervention is evaluated in simulations and experiments. Further, a method is proposed which does not require measurement of the vehicle longitudinal velocity. The results show that it is possible to estimate the current friction coefficient with the proposed method, although the assumption made in the proposed method makes the friction estimate sensitive to measurement noise on the wheel speed signal.

sted, utgiver, år, opplag, sider
CRC Press, 2016. s. 501-510
Emneord [en]
Active safety systems, Front axles, System theory, Tires, Tribology, Vehicles, Wheels, Coefficient of frictions, Friction coefficients, Longitudinal velocity, Measurement Noise, Response measurement, Tyre characteristics, Tyre-road friction, Wheel speed signal, Friction
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-195523ISI: 000385792300053Scopus ID: 2-s2.0-84973626855ISBN: 9781138028852 (tryckt)OAI: oai:DiVA.org:kth-195523DiVA, id: diva2:1045761
Konferanse
24th Symposium of the International Association for Vehicle System Dynamics, IAVSD 2015, 17 August 2015 through 21 August 2015
Merknad

QC 20161110

Tilgjengelig fra: 2016-11-10 Laget: 2016-11-03 Sist oppdatert: 2016-11-21bibliografisk kontrollert

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  • de-DE
  • en-GB
  • en-US
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  • nn-NB
  • sv-SE
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  • asciidoc
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